/* BFD semi-generic back-end for a.out binaries.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1990-2018 Free Software Foundation, Inc.
Written by Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
/*
SECTION
a.out backends
-
DESCRIPTION
BFD supports a number of different flavours of a.out format,
The support is split into a basic support file @file{aoutx.h}
and other files which derive functions from the base. One
derivation file is @file{aoutf1.h} (for a.out flavour 1), and
- adds to the basic a.out functions support for sun3, sun4, 386
- and 29k a.out files, to create a target jump vector for a
- specific target.
+ adds to the basic a.out functions support for sun3, sun4, and
+ 386 a.out files, to create a target jump vector for a specific
+ target.
This information is further split out into more specific files
for each machine, including @file{sunos.c} for sun3 and sun4,
- @file{newsos3.c} for the Sony NEWS, and @file{demo64.c} for a
- demonstration of a 64 bit a.out format.
+ and @file{demo64.c} for a demonstration of a 64 bit a.out format.
The base file @file{aoutx.h} defines general mechanisms for
reading and writing records to and from disk and various
from @file{sunos.c}:
| #define TARGET_NAME "a.out-sunos-big"
-| #define VECNAME sunos_big_vec
+| #define VECNAME sparc_aout_sunos_be_vec
| #include "aoutf1.h"
requires all the names from @file{aout32.c}, and produces the jump vector
-| sunos_big_vec
+| sparc_aout_sunos_be_vec
The file @file{host-aout.c} is a special case. It is for a large set
of hosts that use ``more or less standard'' a.out files, and
| TDEFAULTS = -DDEFAULT_VECTOR=host_aout_big_vec
| TDEPFILES= host-aout.o trad-core.o
- in the @file{config/@var{XXX}.mt} file, and modify @file{configure.in}
+ in the @file{config/@var{XXX}.mt} file, and modify @file{configure.ac}
to use the
@file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
- configuration is selected.
-
-*/
+ configuration is selected. */
/* Some assumptions:
* Any BFD with D_PAGED set is ZMAGIC, and vice versa.
#define KEEPIT udata.i
-#include <string.h> /* For strchr and friends */
+#include "sysdep.h"
#include "bfd.h"
-#include <sysdep.h>
+#include "safe-ctype.h"
#include "bfdlink.h"
#include "libaout.h"
#include "aout/stab_gnu.h"
#include "aout/ar.h"
-static boolean aout_get_external_symbols PARAMS ((bfd *));
-static boolean translate_from_native_sym_flags
- PARAMS ((bfd *, aout_symbol_type *));
-static boolean translate_to_native_sym_flags
- PARAMS ((bfd *, asymbol *, struct external_nlist *));
-
/*
SUBSECTION
Relocations
The file @file{aoutx.h} provides for both the @emph{standard}
and @emph{extended} forms of a.out relocation records.
- The standard records contain only an
- address, a symbol index, and a type field. The extended records
- (used on 29ks and sparcs) also have a full integer for an
- addend.
+ The standard records contain only an address, a symbol index,
+ and a type field. The extended records also have a full
+ integer for an addend. */
-*/
#ifndef CTOR_TABLE_RELOC_HOWTO
#define CTOR_TABLE_RELOC_IDX 2
-#define CTOR_TABLE_RELOC_HOWTO(BFD) ((obj_reloc_entry_size(BFD) == RELOC_EXT_SIZE \
- ? howto_table_ext : howto_table_std) \
- + CTOR_TABLE_RELOC_IDX)
+#define CTOR_TABLE_RELOC_HOWTO(BFD) \
+ ((obj_reloc_entry_size (BFD) == RELOC_EXT_SIZE \
+ ? howto_table_ext : howto_table_std) \
+ + CTOR_TABLE_RELOC_IDX)
#endif
#ifndef MY_swap_std_reloc_in
-#define MY_swap_std_reloc_in NAME(aout,swap_std_reloc_in)
+#define MY_swap_std_reloc_in NAME (aout, swap_std_reloc_in)
+#endif
+
+#ifndef MY_swap_ext_reloc_in
+#define MY_swap_ext_reloc_in NAME (aout, swap_ext_reloc_in)
#endif
#ifndef MY_swap_std_reloc_out
-#define MY_swap_std_reloc_out NAME(aout,swap_std_reloc_out)
+#define MY_swap_std_reloc_out NAME (aout, swap_std_reloc_out)
+#endif
+
+#ifndef MY_swap_ext_reloc_out
+#define MY_swap_ext_reloc_out NAME (aout, swap_ext_reloc_out)
#endif
#ifndef MY_final_link_relocate
#define MY_relocate_contents _bfd_relocate_contents
#endif
-#define howto_table_ext NAME(aout,ext_howto_table)
-#define howto_table_std NAME(aout,std_howto_table)
+#define howto_table_ext NAME (aout, ext_howto_table)
+#define howto_table_std NAME (aout, std_howto_table)
reloc_howto_type howto_table_ext[] =
{
- /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
- HOWTO(RELOC_8, 0, 0, 8, false, 0, complain_overflow_bitfield,0,"8", false, 0,0x000000ff, false),
- HOWTO(RELOC_16, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"16", false, 0,0x0000ffff, false),
- HOWTO(RELOC_32, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"32", false, 0,0xffffffff, false),
- HOWTO(RELOC_DISP8, 0, 0, 8, true, 0, complain_overflow_signed,0,"DISP8", false, 0,0x000000ff, false),
- HOWTO(RELOC_DISP16, 0, 1, 16, true, 0, complain_overflow_signed,0,"DISP16", false, 0,0x0000ffff, false),
- HOWTO(RELOC_DISP32, 0, 2, 32, true, 0, complain_overflow_signed,0,"DISP32", false, 0,0xffffffff, false),
- HOWTO(RELOC_WDISP30,2, 2, 30, true, 0, complain_overflow_signed,0,"WDISP30", false, 0,0x3fffffff, false),
- HOWTO(RELOC_WDISP22,2, 2, 22, true, 0, complain_overflow_signed,0,"WDISP22", false, 0,0x003fffff, false),
- HOWTO(RELOC_HI22, 10, 2, 22, false, 0, complain_overflow_bitfield,0,"HI22", false, 0,0x003fffff, false),
- HOWTO(RELOC_22, 0, 2, 22, false, 0, complain_overflow_bitfield,0,"22", false, 0,0x003fffff, false),
- HOWTO(RELOC_13, 0, 2, 13, false, 0, complain_overflow_bitfield,0,"13", false, 0,0x00001fff, false),
- HOWTO(RELOC_LO10, 0, 2, 10, false, 0, complain_overflow_dont,0,"LO10", false, 0,0x000003ff, false),
- HOWTO(RELOC_SFA_BASE,0, 2, 32, false, 0, complain_overflow_bitfield,0,"SFA_BASE", false, 0,0xffffffff, false),
- HOWTO(RELOC_SFA_OFF13,0,2, 32, false, 0, complain_overflow_bitfield,0,"SFA_OFF13",false, 0,0xffffffff, false),
- HOWTO(RELOC_BASE10, 0, 2, 16, false, 0, complain_overflow_bitfield,0,"BASE10", false, 0,0x0000ffff, false),
- HOWTO(RELOC_BASE13, 0, 2, 13, false, 0, complain_overflow_bitfield,0,"BASE13", false, 0,0x00001fff, false),
- HOWTO(RELOC_BASE22, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"BASE22", false, 0,0x00000000, false),
- HOWTO(RELOC_PC10, 0, 2, 10, true, 0, complain_overflow_dont,0,"PC10", false, 0,0x000003ff, true),
- HOWTO(RELOC_PC22, 10, 2, 22, true, 0, complain_overflow_signed,0,"PC22", false, 0,0x003fffff, true),
- HOWTO(RELOC_JMP_TBL,2, 2, 30, true, 0, complain_overflow_signed,0,"JMP_TBL", false, 0,0x3fffffff, false),
- HOWTO(RELOC_SEGOFF16,0, 2, 0, false, 0, complain_overflow_bitfield,0,"SEGOFF16", false, 0,0x00000000, false),
- HOWTO(RELOC_GLOB_DAT,0, 2, 0, false, 0, complain_overflow_bitfield,0,"GLOB_DAT", false, 0,0x00000000, false),
- HOWTO(RELOC_JMP_SLOT,0, 2, 0, false, 0, complain_overflow_bitfield,0,"JMP_SLOT", false, 0,0x00000000, false),
- HOWTO(RELOC_RELATIVE,0, 2, 0, false, 0, complain_overflow_bitfield,0,"RELATIVE", false, 0,0x00000000, false),
+ /* Type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
+ HOWTO (RELOC_8, 0, 0, 8, FALSE, 0, complain_overflow_bitfield, 0, "8", FALSE, 0, 0x000000ff, FALSE),
+ HOWTO (RELOC_16, 0, 1, 16, FALSE, 0, complain_overflow_bitfield, 0, "16", FALSE, 0, 0x0000ffff, FALSE),
+ HOWTO (RELOC_32, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "32", FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (RELOC_DISP8, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0, "DISP8", FALSE, 0, 0x000000ff, FALSE),
+ HOWTO (RELOC_DISP16, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0, "DISP16", FALSE, 0, 0x0000ffff, FALSE),
+ HOWTO (RELOC_DISP32, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0, "DISP32", FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (RELOC_WDISP30, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "WDISP30", FALSE, 0, 0x3fffffff, FALSE),
+ HOWTO (RELOC_WDISP22, 2, 2, 22, TRUE, 0, complain_overflow_signed, 0, "WDISP22", FALSE, 0, 0x003fffff, FALSE),
+ HOWTO (RELOC_HI22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "HI22", FALSE, 0, 0x003fffff, FALSE),
+ HOWTO (RELOC_22, 0, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "22", FALSE, 0, 0x003fffff, FALSE),
+ HOWTO (RELOC_13, 0, 2, 13, FALSE, 0, complain_overflow_bitfield, 0, "13", FALSE, 0, 0x00001fff, FALSE),
+ HOWTO (RELOC_LO10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "LO10", FALSE, 0, 0x000003ff, FALSE),
+ HOWTO (RELOC_SFA_BASE,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_BASE", FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (RELOC_SFA_OFF13,0, 2, 32, FALSE, 0, complain_overflow_bitfield, 0, "SFA_OFF13", FALSE, 0, 0xffffffff, FALSE),
+ HOWTO (RELOC_BASE10, 0, 2, 10, FALSE, 0, complain_overflow_dont, 0, "BASE10", FALSE, 0, 0x000003ff, FALSE),
+ HOWTO (RELOC_BASE13, 0, 2, 13, FALSE, 0, complain_overflow_signed, 0, "BASE13", FALSE, 0, 0x00001fff, FALSE),
+ HOWTO (RELOC_BASE22, 10, 2, 22, FALSE, 0, complain_overflow_bitfield, 0, "BASE22", FALSE, 0, 0x003fffff, FALSE),
+ HOWTO (RELOC_PC10, 0, 2, 10, TRUE, 0, complain_overflow_dont, 0, "PC10", FALSE, 0, 0x000003ff, TRUE),
+ HOWTO (RELOC_PC22, 10, 2, 22, TRUE, 0, complain_overflow_signed, 0, "PC22", FALSE, 0, 0x003fffff, TRUE),
+ HOWTO (RELOC_JMP_TBL, 2, 2, 30, TRUE, 0, complain_overflow_signed, 0, "JMP_TBL", FALSE, 0, 0x3fffffff, FALSE),
+ HOWTO (RELOC_SEGOFF16,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "SEGOFF16", FALSE, 0, 0x00000000, FALSE),
+ HOWTO (RELOC_GLOB_DAT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "GLOB_DAT", FALSE, 0, 0x00000000, FALSE),
+ HOWTO (RELOC_JMP_SLOT,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "JMP_SLOT", FALSE, 0, 0x00000000, FALSE),
+ HOWTO (RELOC_RELATIVE,0, 2, 0, FALSE, 0, complain_overflow_bitfield, 0, "RELATIVE", FALSE, 0, 0x00000000, FALSE),
+ HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
+ HOWTO (0, 0, 3, 0, FALSE, 0, complain_overflow_dont, 0, "R_SPARC_NONE",FALSE, 0, 0x00000000, TRUE),
+#define RELOC_SPARC_REV32 RELOC_WDISP19
+ HOWTO (RELOC_SPARC_REV32, 0, 2, 32, FALSE, 0, complain_overflow_dont, 0,"R_SPARC_REV32",FALSE, 0, 0xffffffff, FALSE),
};
/* Convert standard reloc records to "arelent" format (incl byte swap). */
-reloc_howto_type howto_table_std[] = {
- /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
-HOWTO( 0, 0, 0, 8, false, 0, complain_overflow_bitfield,0,"8", true, 0x000000ff,0x000000ff, false),
-HOWTO( 1, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"16", true, 0x0000ffff,0x0000ffff, false),
-HOWTO( 2, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"32", true, 0xffffffff,0xffffffff, false),
-HOWTO( 3, 0, 4, 64, false, 0, complain_overflow_bitfield,0,"64", true, 0xdeaddead,0xdeaddead, false),
-HOWTO( 4, 0, 0, 8, true, 0, complain_overflow_signed, 0,"DISP8", true, 0x000000ff,0x000000ff, false),
-HOWTO( 5, 0, 1, 16, true, 0, complain_overflow_signed, 0,"DISP16", true, 0x0000ffff,0x0000ffff, false),
-HOWTO( 6, 0, 2, 32, true, 0, complain_overflow_signed, 0,"DISP32", true, 0xffffffff,0xffffffff, false),
-HOWTO( 7, 0, 4, 64, true, 0, complain_overflow_signed, 0,"DISP64", true, 0xfeedface,0xfeedface, false),
-HOWTO( 8, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"GOT_REL", false, 0,0x00000000, false),
-HOWTO( 9, 0, 1, 16, false, 0, complain_overflow_bitfield,0,"BASE16", false,0xffffffff,0xffffffff, false),
-HOWTO(10, 0, 2, 32, false, 0, complain_overflow_bitfield,0,"BASE32", false,0xffffffff,0xffffffff, false),
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
- HOWTO(16, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"JMP_TABLE", false, 0,0x00000000, false),
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 }, { -1 },
- HOWTO(32, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"RELATIVE", false, 0,0x00000000, false),
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
-{ -1 },
- HOWTO(40, 0, 2, 0, false, 0, complain_overflow_bitfield,0,"BASEREL", false, 0,0x00000000, false),
+reloc_howto_type howto_table_std[] =
+{
+ /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone. */
+HOWTO ( 0, 0, 0, 8, FALSE, 0, complain_overflow_bitfield,0,"8", TRUE, 0x000000ff,0x000000ff, FALSE),
+HOWTO ( 1, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
+HOWTO ( 2, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"32", TRUE, 0xffffffff,0xffffffff, FALSE),
+HOWTO ( 3, 0, 4, 64, FALSE, 0, complain_overflow_bitfield,0,"64", TRUE, 0xdeaddead,0xdeaddead, FALSE),
+HOWTO ( 4, 0, 0, 8, TRUE, 0, complain_overflow_signed, 0,"DISP8", TRUE, 0x000000ff,0x000000ff, FALSE),
+HOWTO ( 5, 0, 1, 16, TRUE, 0, complain_overflow_signed, 0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
+HOWTO ( 6, 0, 2, 32, TRUE, 0, complain_overflow_signed, 0,"DISP32", TRUE, 0xffffffff,0xffffffff, FALSE),
+HOWTO ( 7, 0, 4, 64, TRUE, 0, complain_overflow_signed, 0,"DISP64", TRUE, 0xfeedface,0xfeedface, FALSE),
+HOWTO ( 8, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"GOT_REL", FALSE, 0,0x00000000, FALSE),
+HOWTO ( 9, 0, 1, 16, FALSE, 0, complain_overflow_bitfield,0,"BASE16", FALSE,0xffffffff,0xffffffff, FALSE),
+HOWTO (10, 0, 2, 32, FALSE, 0, complain_overflow_bitfield,0,"BASE32", FALSE,0xffffffff,0xffffffff, FALSE),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+ HOWTO (16, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"JMP_TABLE", FALSE, 0,0x00000000, FALSE),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+ HOWTO (32, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"RELATIVE", FALSE, 0,0x00000000, FALSE),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+EMPTY_HOWTO (-1),
+ HOWTO (40, 0, 2, 0, FALSE, 0, complain_overflow_bitfield,0,"BASEREL", FALSE, 0,0x00000000, FALSE),
};
-#define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
+#define TABLE_SIZE(TABLE) (sizeof (TABLE) / sizeof (TABLE[0]))
reloc_howto_type *
-NAME(aout,reloc_type_lookup) (abfd,code)
- bfd *abfd;
- bfd_reloc_code_real_type code;
+NAME (aout, reloc_type_lookup) (bfd *abfd, bfd_reloc_code_real_type code)
{
-#define EXT(i,j) case i: return &howto_table_ext[j]
-#define STD(i,j) case i: return &howto_table_std[j]
+#define EXT(i, j) case i: return & howto_table_ext [j]
+#define STD(i, j) case i: return & howto_table_std [j]
int ext = obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE;
+
if (code == BFD_RELOC_CTOR)
- switch (bfd_get_arch_info (abfd)->bits_per_address)
+ switch (bfd_arch_bits_per_address (abfd))
{
case 32:
code = BFD_RELOC_32;
code = BFD_RELOC_64;
break;
}
+
if (ext)
switch (code)
{
+ EXT (BFD_RELOC_8, 0);
+ EXT (BFD_RELOC_16, 1);
EXT (BFD_RELOC_32, 2);
EXT (BFD_RELOC_HI22, 8);
EXT (BFD_RELOC_LO10, 11);
EXT (BFD_RELOC_SPARC_PC10, 17);
EXT (BFD_RELOC_SPARC_PC22, 18);
EXT (BFD_RELOC_SPARC_WPLT30, 19);
- default: return (reloc_howto_type *) NULL;
+ EXT (BFD_RELOC_SPARC_REV32, 26);
+ default:
+ return NULL;
}
else
- /* std relocs */
+ /* std relocs. */
switch (code)
{
+ STD (BFD_RELOC_8, 0);
STD (BFD_RELOC_16, 1);
STD (BFD_RELOC_32, 2);
STD (BFD_RELOC_8_PCREL, 4);
STD (BFD_RELOC_32_PCREL, 6);
STD (BFD_RELOC_16_BASEREL, 9);
STD (BFD_RELOC_32_BASEREL, 10);
- default: return (reloc_howto_type *) NULL;
+ default:
+ return NULL;
}
}
+reloc_howto_type *
+NAME (aout, reloc_name_lookup) (bfd *abfd, const char *r_name)
+{
+ unsigned int i, size;
+ reloc_howto_type *howto_table;
+
+ if (obj_reloc_entry_size (abfd) == RELOC_EXT_SIZE)
+ {
+ howto_table = howto_table_ext;
+ size = sizeof (howto_table_ext) / sizeof (howto_table_ext[0]);
+ }
+ else
+ {
+ howto_table = howto_table_std;
+ size = sizeof (howto_table_std) / sizeof (howto_table_std[0]);
+ }
+
+ for (i = 0; i < size; i++)
+ if (howto_table[i].name != NULL
+ && strcasecmp (howto_table[i].name, r_name) == 0)
+ return &howto_table[i];
+
+ return NULL;
+}
+
/*
SUBSECTION
Internal entry points
@file{aoutx.h} exports several routines for accessing the
contents of an a.out file, which are gathered and exported in
turn by various format specific files (eg sunos.c).
-
*/
/*
SYNOPSIS
void aout_@var{size}_swap_exec_header_in,
- (bfd *abfd,
- struct external_exec *raw_bytes,
- struct internal_exec *execp);
+ (bfd *abfd,
+ struct external_exec *bytes,
+ struct internal_exec *execp);
DESCRIPTION
Swap the information in an executable header @var{raw_bytes} taken
#ifndef NAME_swap_exec_header_in
void
-NAME(aout,swap_exec_header_in) (abfd, raw_bytes, execp)
- bfd *abfd;
- struct external_exec *raw_bytes;
- struct internal_exec *execp;
+NAME (aout, swap_exec_header_in) (bfd *abfd,
+ struct external_exec *bytes,
+ struct internal_exec *execp)
{
- struct external_exec *bytes = (struct external_exec *)raw_bytes;
-
/* The internal_exec structure has some fields that are unused in this
configuration (IE for i960), so ensure that all such uninitialized
fields are zero'd out. There are places where two of these structs
- are memcmp'd, and thus the contents do matter. */
- memset ((PTR) execp, 0, sizeof (struct internal_exec));
+ are memcmp'd, and thus the contents do matter. */
+ memset ((void *) execp, 0, sizeof (struct internal_exec));
/* Now fill in fields in the execp, from the bytes in the raw data. */
- execp->a_info = bfd_h_get_32 (abfd, bytes->e_info);
+ execp->a_info = H_GET_32 (abfd, bytes->e_info);
execp->a_text = GET_WORD (abfd, bytes->e_text);
execp->a_data = GET_WORD (abfd, bytes->e_data);
execp->a_bss = GET_WORD (abfd, bytes->e_bss);
execp->a_trsize = GET_WORD (abfd, bytes->e_trsize);
execp->a_drsize = GET_WORD (abfd, bytes->e_drsize);
}
-#define NAME_swap_exec_header_in NAME(aout,swap_exec_header_in)
+#define NAME_swap_exec_header_in NAME (aout, swap_exec_header_in)
#endif
/*
@var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
*/
void
-NAME(aout,swap_exec_header_out) (abfd, execp, raw_bytes)
- bfd *abfd;
- struct internal_exec *execp;
- struct external_exec *raw_bytes;
+NAME (aout, swap_exec_header_out) (bfd *abfd,
+ struct internal_exec *execp,
+ struct external_exec *bytes)
{
- struct external_exec *bytes = (struct external_exec *)raw_bytes;
-
- /* Now fill in fields in the raw data, from the fields in the exec struct. */
- bfd_h_put_32 (abfd, execp->a_info , bytes->e_info);
+ /* Now fill in fields in the raw data, from the fields in the exec struct. */
+ H_PUT_32 (abfd, execp->a_info , bytes->e_info);
PUT_WORD (abfd, execp->a_text , bytes->e_text);
PUT_WORD (abfd, execp->a_data , bytes->e_data);
PUT_WORD (abfd, execp->a_bss , bytes->e_bss);
/* Make all the section for an a.out file. */
-boolean
-NAME(aout,make_sections) (abfd)
- bfd *abfd;
+bfd_boolean
+NAME (aout, make_sections) (bfd *abfd)
{
- if (obj_textsec (abfd) == (asection *) NULL
- && bfd_make_section (abfd, ".text") == (asection *) NULL)
- return false;
- if (obj_datasec (abfd) == (asection *) NULL
- && bfd_make_section (abfd, ".data") == (asection *) NULL)
- return false;
- if (obj_bsssec (abfd) == (asection *) NULL
- && bfd_make_section (abfd, ".bss") == (asection *) NULL)
- return false;
- return true;
+ if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
+ return FALSE;
+ if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
+ return FALSE;
+ if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
+ return FALSE;
+ return TRUE;
}
/*
SYNOPSIS
const bfd_target *aout_@var{size}_some_aout_object_p
(bfd *abfd,
- const bfd_target *(*callback_to_real_object_p)());
+ struct internal_exec *execp,
+ const bfd_target *(*callback_to_real_object_p) (bfd *));
DESCRIPTION
Some a.out variant thinks that the file open in @var{abfd}
*/
const bfd_target *
-NAME(aout,some_aout_object_p) (abfd, execp, callback_to_real_object_p)
- bfd *abfd;
- struct internal_exec *execp;
- const bfd_target *(*callback_to_real_object_p) PARAMS ((bfd *));
+NAME (aout, some_aout_object_p) (bfd *abfd,
+ struct internal_exec *execp,
+ const bfd_target *(*callback_to_real_object_p) (bfd *))
{
struct aout_data_struct *rawptr, *oldrawptr;
const bfd_target *result;
+ bfd_size_type amt = sizeof (* rawptr);
- rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, sizeof (struct aout_data_struct ));
- if (rawptr == NULL) {
- bfd_set_error (bfd_error_no_memory);
- return 0;
- }
+ rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
+ if (rawptr == NULL)
+ return NULL;
oldrawptr = abfd->tdata.aout_data;
abfd->tdata.aout_data = rawptr;
- /* Copy the contents of the old tdata struct.
- In particular, we want the subformat, since for hpux it was set in
- hp300hpux.c:swap_exec_header_in and will be used in
- hp300hpux.c:callback. */
+ /* Copy the contents of the old tdata struct. */
if (oldrawptr != NULL)
*abfd->tdata.aout_data = *oldrawptr;
abfd->tdata.aout_data->a.hdr = &rawptr->e;
- *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct */
+ /* Copy in the internal_exec struct. */
+ *(abfd->tdata.aout_data->a.hdr) = *execp;
execp = abfd->tdata.aout_data->a.hdr;
- /* Set the file flags */
- abfd->flags = NO_FLAGS;
+ /* Set the file flags. */
+ abfd->flags = BFD_NO_FLAGS;
if (execp->a_drsize || execp->a_trsize)
abfd->flags |= HAS_RELOC;
- /* Setting of EXEC_P has been deferred to the bottom of this function */
+ /* Setting of EXEC_P has been deferred to the bottom of this function. */
if (execp->a_syms)
abfd->flags |= HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS;
- if (N_DYNAMIC(*execp))
+ if (N_DYNAMIC (execp))
abfd->flags |= DYNAMIC;
- if (N_MAGIC (*execp) == ZMAGIC)
+ if (N_MAGIC (execp) == ZMAGIC)
{
abfd->flags |= D_PAGED | WP_TEXT;
adata (abfd).magic = z_magic;
}
- else if (N_MAGIC (*execp) == QMAGIC)
+ else if (N_MAGIC (execp) == QMAGIC)
{
abfd->flags |= D_PAGED | WP_TEXT;
adata (abfd).magic = z_magic;
adata (abfd).subformat = q_magic_format;
}
- else if (N_MAGIC (*execp) == NMAGIC)
+ else if (N_MAGIC (execp) == NMAGIC)
{
abfd->flags |= WP_TEXT;
adata (abfd).magic = n_magic;
}
- else if (N_MAGIC (*execp) == OMAGIC
- || N_MAGIC (*execp) == BMAGIC)
+ else if (N_MAGIC (execp) == OMAGIC
+ || N_MAGIC (execp) == BMAGIC)
adata (abfd).magic = o_magic;
else
- {
- /* Should have been checked with N_BADMAG before this routine
- was called. */
- abort ();
- }
+ /* Should have been checked with N_BADMAG before this routine
+ was called. */
+ abort ();
bfd_get_start_address (abfd) = execp->a_entry;
- obj_aout_symbols (abfd) = (aout_symbol_type *)NULL;
+ obj_aout_symbols (abfd) = NULL;
bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist);
/* The default relocation entry size is that of traditional V7 Unix. */
obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
- /* The default symbol entry size is that of traditional Unix. */
+ /* The default symbol entry size is that of traditional Unix. */
obj_symbol_entry_size (abfd) = EXTERNAL_NLIST_SIZE;
+#ifdef USE_MMAP
+ bfd_init_window (&obj_aout_sym_window (abfd));
+ bfd_init_window (&obj_aout_string_window (abfd));
+#endif
obj_aout_external_syms (abfd) = NULL;
obj_aout_external_strings (abfd) = NULL;
obj_aout_sym_hashes (abfd) = NULL;
- if (! NAME(aout,make_sections) (abfd))
- return NULL;
+ if (! NAME (aout, make_sections) (abfd))
+ goto error_ret;
- obj_datasec (abfd)->_raw_size = execp->a_data;
- obj_bsssec (abfd)->_raw_size = execp->a_bss;
+ obj_datasec (abfd)->size = execp->a_data;
+ obj_bsssec (abfd)->size = execp->a_bss;
obj_textsec (abfd)->flags =
(execp->a_trsize != 0
struct exec *execp = exec_hdr (abfd);
- obj_textsec (abfd)->size = N_TXTSIZE(*execp);
- obj_textsec (abfd)->raw_size = N_TXTSIZE(*execp);
- /* data and bss are already filled in since they're so standard */
+ obj_textsec (abfd)->size = N_TXTSIZE (execp);
+ /* Data and bss are already filled in since they're so standard. */
- /* The virtual memory addresses of the sections */
- obj_textsec (abfd)->vma = N_TXTADDR(*execp);
- obj_datasec (abfd)->vma = N_DATADDR(*execp);
- obj_bsssec (abfd)->vma = N_BSSADDR(*execp);
+ /* The virtual memory addresses of the sections. */
+ obj_textsec (abfd)->vma = N_TXTADDR (execp);
+ obj_datasec (abfd)->vma = N_DATADDR (execp);
+ obj_bsssec (abfd)->vma = N_BSSADDR (execp);
- /* The file offsets of the sections */
- obj_textsec (abfd)->filepos = N_TXTOFF(*execp);
- obj_datasec (abfd)->filepos = N_DATOFF(*execp);
+ /* The file offsets of the sections. */
+ obj_textsec (abfd)->filepos = N_TXTOFF (execp);
+ obj_datasec (abfd)->filepos = N_DATOFF (execp);
- /* The file offsets of the relocation info */
- obj_textsec (abfd)->rel_filepos = N_TRELOFF(*execp);
- obj_datasec (abfd)->rel_filepos = N_DRELOFF(*execp);
+ /* The file offsets of the relocation info. */
+ obj_textsec (abfd)->rel_filepos = N_TRELOFF (execp);
+ obj_datasec (abfd)->rel_filepos = N_DRELOFF (execp);
/* The file offsets of the string table and symbol table. */
- obj_str_filepos (abfd) = N_STROFF (*execp);
- obj_sym_filepos (abfd) = N_SYMOFF (*execp);
+ obj_str_filepos (abfd) = N_STROFF (execp);
+ obj_sym_filepos (abfd) = N_SYMOFF (execp);
/* Determine the architecture and machine type of the object file. */
- switch (N_MACHTYPE (*exec_hdr (abfd))) {
- default:
- abfd->obj_arch = bfd_arch_obscure;
- break;
- }
+ switch (N_MACHTYPE (exec_hdr (abfd)))
+ {
+ default:
+ abfd->obj_arch = bfd_arch_obscure;
+ break;
+ }
- adata(abfd)->page_size = TARGET_PAGE_SIZE;
- adata(abfd)->segment_size = SEGMENT_SIZE;
- adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
+ adata (abfd)->page_size = TARGET_PAGE_SIZE;
+ adata (abfd)->segment_size = SEGMENT_SIZE;
+ adata (abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
return abfd->xvec;
header, should cope with them in this callback as well. */
#endif /* DOCUMENTATION */
- result = (*callback_to_real_object_p)(abfd);
+ result = (*callback_to_real_object_p) (abfd);
/* Now that the segment addresses have been worked out, take a better
guess at whether the file is executable. If the entry point
is within the text segment, assume it is. (This makes files
executable even if their entry point address is 0, as long as
- their text starts at zero.). */
- if ((execp->a_entry >= obj_textsec(abfd)->vma) &&
- (execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size))
+ their text starts at zero.).
+
+ This test had to be changed to deal with systems where the text segment
+ runs at a different location than the default. The problem is that the
+ entry address can appear to be outside the text segment, thus causing an
+ erroneous conclusion that the file isn't executable.
+
+ To fix this, we now accept any non-zero entry point as an indication of
+ executability. This will work most of the time, since only the linker
+ sets the entry point, and that is likely to be non-zero for most systems. */
+
+ if (execp->a_entry != 0
+ || (execp->a_entry >= obj_textsec (abfd)->vma
+ && execp->a_entry < (obj_textsec (abfd)->vma
+ + obj_textsec (abfd)->size)
+ && execp->a_trsize == 0
+ && execp->a_drsize == 0))
abfd->flags |= EXEC_P;
#ifdef STAT_FOR_EXEC
else
struct stat stat_buf;
/* The original heuristic doesn't work in some important cases.
- The a.out file has no information about the text start
- address. For files (like kernels) linked to non-standard
- addresses (ld -Ttext nnn) the entry point may not be between
- the default text start (obj_textsec(abfd)->vma) and
- (obj_textsec(abfd)->vma) + text size. This is not just a mach
- issue. Many kernels are loaded at non standard addresses. */
- if (abfd->iostream
- && (fstat(fileno((FILE *) (abfd->iostream)), &stat_buf) == 0)
+ The a.out file has no information about the text start
+ address. For files (like kernels) linked to non-standard
+ addresses (ld -Ttext nnn) the entry point may not be between
+ the default text start (obj_textsec(abfd)->vma) and
+ (obj_textsec(abfd)->vma) + text size. This is not just a mach
+ issue. Many kernels are loaded at non standard addresses. */
+ if (abfd->iostream != NULL
+ && (abfd->flags & BFD_IN_MEMORY) == 0
+ && (fstat (fileno ((FILE *) (abfd->iostream)), &stat_buf) == 0)
&& ((stat_buf.st_mode & 0111) != 0))
abfd->flags |= EXEC_P;
}
#endif /* STAT_FOR_EXEC */
if (result)
- {
-#if 0 /* These should be set correctly anyways. */
- abfd->sections = obj_textsec (abfd);
- obj_textsec (abfd)->next = obj_datasec (abfd);
- obj_datasec (abfd)->next = obj_bsssec (abfd);
-#endif
- }
- else
- {
- free (rawptr);
- abfd->tdata.aout_data = oldrawptr;
- }
- return result;
+ return result;
+
+ error_ret:
+ bfd_release (abfd, rawptr);
+ abfd->tdata.aout_data = oldrawptr;
+ return NULL;
}
/*
aout_@var{size}_mkobject
SYNOPSIS
- boolean aout_@var{size}_mkobject, (bfd *abfd);
+ bfd_boolean aout_@var{size}_mkobject, (bfd *abfd);
DESCRIPTION
Initialize BFD @var{abfd} for use with a.out files.
*/
-boolean
-NAME(aout,mkobject) (abfd)
- bfd *abfd;
+bfd_boolean
+NAME (aout, mkobject) (bfd *abfd)
{
- struct aout_data_struct *rawptr;
+ struct aout_data_struct *rawptr;
+ bfd_size_type amt = sizeof (* rawptr);
bfd_set_error (bfd_error_system_call);
- /* Use an intermediate variable for clarity */
- rawptr = (struct aout_data_struct *)bfd_zalloc (abfd, sizeof (struct aout_data_struct ));
-
- if (rawptr == NULL) {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
+ if (rawptr == NULL)
+ return FALSE;
abfd->tdata.aout_data = rawptr;
exec_hdr (abfd) = &(rawptr->e);
- obj_textsec (abfd) = (asection *)NULL;
- obj_datasec (abfd) = (asection *)NULL;
- obj_bsssec (abfd) = (asection *)NULL;
+ obj_textsec (abfd) = NULL;
+ obj_datasec (abfd) = NULL;
+ obj_bsssec (abfd) = NULL;
- return true;
+ return TRUE;
}
-
/*
FUNCTION
aout_@var{size}_machine_type
SYNOPSIS
enum machine_type aout_@var{size}_machine_type
(enum bfd_architecture arch,
- unsigned long machine));
+ unsigned long machine,
+ bfd_boolean *unknown);
DESCRIPTION
Keep track of machine architecture and machine type for
*/
enum machine_type
-NAME(aout,machine_type) (arch, machine, unknown)
- enum bfd_architecture arch;
- unsigned long machine;
- boolean *unknown;
+NAME (aout, machine_type) (enum bfd_architecture arch,
+ unsigned long machine,
+ bfd_boolean *unknown)
{
enum machine_type arch_flags;
arch_flags = M_UNKNOWN;
- *unknown = true;
-
- switch (arch) {
- case bfd_arch_sparc:
- if (machine == 0
- || machine == bfd_mach_sparc
- || machine == bfd_mach_sparc64)
- arch_flags = M_SPARC;
- break;
-
- case bfd_arch_m68k:
- switch (machine) {
- case 0: arch_flags = M_68010; break;
- case 68000: arch_flags = M_UNKNOWN; *unknown = false; break;
- case 68010: arch_flags = M_68010; break;
- case 68020: arch_flags = M_68020; break;
- default: arch_flags = M_UNKNOWN; break;
- }
- break;
-
- case bfd_arch_i386:
- if (machine == 0) arch_flags = M_386;
- break;
-
- case bfd_arch_a29k:
- if (machine == 0) arch_flags = M_29K;
- break;
-
- case bfd_arch_arm:
- if (machine == 0) arch_flags = M_ARM;
- break;
-
- case bfd_arch_mips:
- switch (machine) {
- case 0:
- case 2000:
- case 3000: arch_flags = M_MIPS1; break;
- case 4000: /* mips3 */
- case 4400:
- case 8000: /* mips4 */
- /* real mips2: */
- case 6000: arch_flags = M_MIPS2; break;
- default: arch_flags = M_UNKNOWN; break;
- }
- break;
-
- case bfd_arch_ns32k:
- switch (machine) {
- case 0: arch_flags = M_NS32532; break;
- case 32032: arch_flags = M_NS32032; break;
- case 32532: arch_flags = M_NS32532; break;
- default: arch_flags = M_UNKNOWN; break;
- }
- break;
+ *unknown = TRUE;
+
+ switch (arch)
+ {
+ case bfd_arch_sparc:
+ if (machine == 0
+ || machine == bfd_mach_sparc
+ || machine == bfd_mach_sparc_sparclite
+ || machine == bfd_mach_sparc_sparclite_le
+ || machine == bfd_mach_sparc_v8plus
+ || machine == bfd_mach_sparc_v8plusa
+ || machine == bfd_mach_sparc_v8plusb
+ || machine == bfd_mach_sparc_v8plusc
+ || machine == bfd_mach_sparc_v8plusd
+ || machine == bfd_mach_sparc_v8pluse
+ || machine == bfd_mach_sparc_v8plusv
+ || machine == bfd_mach_sparc_v8plusm
+ || machine == bfd_mach_sparc_v8plusm8
+ || machine == bfd_mach_sparc_v9
+ || machine == bfd_mach_sparc_v9a
+ || machine == bfd_mach_sparc_v9b
+ || machine == bfd_mach_sparc_v9c
+ || machine == bfd_mach_sparc_v9d
+ || machine == bfd_mach_sparc_v9e
+ || machine == bfd_mach_sparc_v9v
+ || machine == bfd_mach_sparc_v9m
+ || machine == bfd_mach_sparc_v9m8)
+ arch_flags = M_SPARC;
+ else if (machine == bfd_mach_sparc_sparclet)
+ arch_flags = M_SPARCLET;
+ break;
- case bfd_arch_vax:
- *unknown = false;
- break;
+ case bfd_arch_i386:
+ if (machine == 0
+ || machine == bfd_mach_i386_i386
+ || machine == bfd_mach_i386_i386_intel_syntax)
+ arch_flags = M_386;
+ break;
- /* start-sanitize-rce */
- case bfd_arch_rce:
- arch_flags = M_RCE;
- break;
- /* end-sanitize-rce */
+ case bfd_arch_arm:
+ if (machine == 0)
+ arch_flags = M_ARM;
+ break;
- default:
- arch_flags = M_UNKNOWN;
- }
+ case bfd_arch_mips:
+ switch (machine)
+ {
+ case 0:
+ case bfd_mach_mips3000:
+ case bfd_mach_mips3900:
+ arch_flags = M_MIPS1;
+ break;
+ case bfd_mach_mips6000:
+ arch_flags = M_MIPS2;
+ break;
+ case bfd_mach_mips4000:
+ case bfd_mach_mips4010:
+ case bfd_mach_mips4100:
+ case bfd_mach_mips4300:
+ case bfd_mach_mips4400:
+ case bfd_mach_mips4600:
+ case bfd_mach_mips4650:
+ case bfd_mach_mips8000:
+ case bfd_mach_mips9000:
+ case bfd_mach_mips10000:
+ case bfd_mach_mips12000:
+ case bfd_mach_mips14000:
+ case bfd_mach_mips16000:
+ case bfd_mach_mips16:
+ case bfd_mach_mipsisa32:
+ case bfd_mach_mipsisa32r2:
+ case bfd_mach_mipsisa32r3:
+ case bfd_mach_mipsisa32r5:
+ case bfd_mach_mipsisa32r6:
+ case bfd_mach_mips5:
+ case bfd_mach_mipsisa64:
+ case bfd_mach_mipsisa64r2:
+ case bfd_mach_mipsisa64r3:
+ case bfd_mach_mipsisa64r5:
+ case bfd_mach_mipsisa64r6:
+ case bfd_mach_mips_sb1:
+ case bfd_mach_mips_xlr:
+ /* FIXME: These should be MIPS3, MIPS4, MIPS16, MIPS32, etc. */
+ arch_flags = M_MIPS2;
+ break;
+ default:
+ arch_flags = M_UNKNOWN;
+ break;
+ }
+ break;
+
+ case bfd_arch_ns32k:
+ switch (machine)
+ {
+ case 0: arch_flags = M_NS32532; break;
+ case 32032: arch_flags = M_NS32032; break;
+ case 32532: arch_flags = M_NS32532; break;
+ default: arch_flags = M_UNKNOWN; break;
+ }
+ break;
+
+ case bfd_arch_vax:
+ *unknown = FALSE;
+ break;
+
+ case bfd_arch_cris:
+ if (machine == 0 || machine == 255)
+ arch_flags = M_CRIS;
+ break;
+
+ default:
+ arch_flags = M_UNKNOWN;
+ }
if (arch_flags != M_UNKNOWN)
- *unknown = false;
+ *unknown = FALSE;
return arch_flags;
}
-
/*
FUNCTION
aout_@var{size}_set_arch_mach
SYNOPSIS
- boolean aout_@var{size}_set_arch_mach,
+ bfd_boolean aout_@var{size}_set_arch_mach,
(bfd *,
enum bfd_architecture arch,
- unsigned long machine));
+ unsigned long machine);
DESCRIPTION
Set the architecture and the machine of the BFD @var{abfd} to the
can support the architecture required.
*/
-boolean
-NAME(aout,set_arch_mach) (abfd, arch, machine)
- bfd *abfd;
- enum bfd_architecture arch;
- unsigned long machine;
+bfd_boolean
+NAME (aout, set_arch_mach) (bfd *abfd,
+ enum bfd_architecture arch,
+ unsigned long machine)
{
if (! bfd_default_set_arch_mach (abfd, arch, machine))
- return false;
+ return FALSE;
if (arch != bfd_arch_unknown)
{
- boolean unknown;
+ bfd_boolean unknown;
- NAME(aout,machine_type) (arch, machine, &unknown);
+ NAME (aout, machine_type) (arch, machine, &unknown);
if (unknown)
- return false;
+ return FALSE;
}
- /* Determine the size of a relocation entry */
- switch (arch) {
- case bfd_arch_sparc:
- case bfd_arch_a29k:
- case bfd_arch_mips:
- obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
- break;
- default:
- obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
- break;
- }
+ /* Determine the size of a relocation entry. */
+ switch (arch)
+ {
+ case bfd_arch_sparc:
+ case bfd_arch_mips:
+ obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
+ break;
+ default:
+ obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
+ break;
+ }
- return (*aout_backend_info(abfd)->set_sizes) (abfd);
+ return (*aout_backend_info (abfd)->set_sizes) (abfd);
}
static void
-adjust_o_magic (abfd, execp)
- bfd *abfd;
- struct internal_exec *execp;
+adjust_o_magic (bfd *abfd, struct internal_exec *execp)
{
file_ptr pos = adata (abfd).exec_bytes_size;
bfd_vma vma = 0;
int pad = 0;
/* Text. */
- obj_textsec(abfd)->filepos = pos;
- if (!obj_textsec(abfd)->user_set_vma)
- obj_textsec(abfd)->vma = vma;
+ obj_textsec (abfd)->filepos = pos;
+ if (!obj_textsec (abfd)->user_set_vma)
+ obj_textsec (abfd)->vma = vma;
else
- vma = obj_textsec(abfd)->vma;
+ vma = obj_textsec (abfd)->vma;
- pos += obj_textsec(abfd)->_raw_size;
- vma += obj_textsec(abfd)->_raw_size;
+ pos += obj_textsec (abfd)->size;
+ vma += obj_textsec (abfd)->size;
/* Data. */
- if (!obj_datasec(abfd)->user_set_vma)
+ if (!obj_datasec (abfd)->user_set_vma)
{
-#if 0 /* ?? Does alignment in the file image really matter? */
- pad = align_power (vma, obj_datasec(abfd)->alignment_power) - vma;
-#endif
- obj_textsec(abfd)->_raw_size += pad;
+ obj_textsec (abfd)->size += pad;
pos += pad;
vma += pad;
- obj_datasec(abfd)->vma = vma;
+ obj_datasec (abfd)->vma = vma;
}
else
- vma = obj_datasec(abfd)->vma;
- obj_datasec(abfd)->filepos = pos;
- pos += obj_datasec(abfd)->_raw_size;
- vma += obj_datasec(abfd)->_raw_size;
+ vma = obj_datasec (abfd)->vma;
+ obj_datasec (abfd)->filepos = pos;
+ pos += obj_datasec (abfd)->size;
+ vma += obj_datasec (abfd)->size;
/* BSS. */
- if (!obj_bsssec(abfd)->user_set_vma)
+ if (!obj_bsssec (abfd)->user_set_vma)
{
-#if 0
- pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma;
-#endif
- obj_datasec(abfd)->_raw_size += pad;
+ obj_datasec (abfd)->size += pad;
pos += pad;
vma += pad;
- obj_bsssec(abfd)->vma = vma;
+ obj_bsssec (abfd)->vma = vma;
}
else
{
- /* The VMA of the .bss section is set by the the VMA of the
- .data section plus the size of the .data section. We may
- need to add padding bytes to make this true. */
+ /* The VMA of the .bss section is set by the VMA of the
+ .data section plus the size of the .data section. We may
+ need to add padding bytes to make this true. */
pad = obj_bsssec (abfd)->vma - vma;
if (pad > 0)
{
- obj_datasec (abfd)->_raw_size += pad;
+ obj_datasec (abfd)->size += pad;
pos += pad;
}
}
- obj_bsssec(abfd)->filepos = pos;
+ obj_bsssec (abfd)->filepos = pos;
/* Fix up the exec header. */
- execp->a_text = obj_textsec(abfd)->_raw_size;
- execp->a_data = obj_datasec(abfd)->_raw_size;
- execp->a_bss = obj_bsssec(abfd)->_raw_size;
- N_SET_MAGIC (*execp, OMAGIC);
+ execp->a_text = obj_textsec (abfd)->size;
+ execp->a_data = obj_datasec (abfd)->size;
+ execp->a_bss = obj_bsssec (abfd)->size;
+ N_SET_MAGIC (execp, OMAGIC);
}
static void
-adjust_z_magic (abfd, execp)
- bfd *abfd;
- struct internal_exec *execp;
+adjust_z_magic (bfd *abfd, struct internal_exec *execp)
{
bfd_size_type data_pad, text_pad;
file_ptr text_end;
- CONST struct aout_backend_data *abdp;
- int ztih; /* Nonzero if text includes exec header. */
-
+ const struct aout_backend_data *abdp;
+ /* TRUE if text includes exec header. */
+ bfd_boolean ztih;
+
abdp = aout_backend_info (abfd);
/* Text. */
ztih = (abdp != NULL
&& (abdp->text_includes_header
|| obj_aout_subformat (abfd) == q_magic_format));
- obj_textsec(abfd)->filepos = (ztih
- ? adata(abfd).exec_bytes_size
- : adata(abfd).zmagic_disk_block_size);
- if (! obj_textsec(abfd)->user_set_vma)
+ obj_textsec (abfd)->filepos = (ztih
+ ? adata (abfd).exec_bytes_size
+ : adata (abfd).zmagic_disk_block_size);
+ if (! obj_textsec (abfd)->user_set_vma)
{
/* ?? Do we really need to check for relocs here? */
- obj_textsec(abfd)->vma = ((abfd->flags & HAS_RELOC)
- ? 0
- : (ztih
- ? (abdp->default_text_vma
- + adata(abfd).exec_bytes_size)
- : abdp->default_text_vma));
+ obj_textsec (abfd)->vma = ((abfd->flags & HAS_RELOC)
+ ? 0
+ : (ztih
+ ? (abdp->default_text_vma
+ + adata (abfd).exec_bytes_size)
+ : abdp->default_text_vma));
text_pad = 0;
}
else
{
/* The .text section is being loaded at an unusual address. We
- may need to pad it such that the .data section starts at a page
- boundary. */
+ may need to pad it such that the .data section starts at a page
+ boundary. */
if (ztih)
text_pad = ((obj_textsec (abfd)->filepos - obj_textsec (abfd)->vma)
& (adata (abfd).page_size - 1));
/* Find start of data. */
if (ztih)
{
- text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->_raw_size;
+ text_end = obj_textsec (abfd)->filepos + obj_textsec (abfd)->size;
text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
}
else
/* Note that if page_size == zmagic_disk_block_size, then
filepos == page_size, and this case is the same as the ztih
case. */
- text_end = obj_textsec (abfd)->_raw_size;
+ text_end = obj_textsec (abfd)->size;
text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
text_end += obj_textsec (abfd)->filepos;
}
- obj_textsec(abfd)->_raw_size += text_pad;
+ obj_textsec (abfd)->size += text_pad;
text_end += text_pad;
/* Data. */
- if (!obj_datasec(abfd)->user_set_vma)
+ if (!obj_datasec (abfd)->user_set_vma)
{
bfd_vma vma;
- vma = obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size;
- obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
+ vma = obj_textsec (abfd)->vma + obj_textsec (abfd)->size;
+ obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
}
if (abdp && abdp->zmagic_mapped_contiguous)
{
- text_pad = (obj_datasec(abfd)->vma
- - obj_textsec(abfd)->vma
- - obj_textsec(abfd)->_raw_size);
- obj_textsec(abfd)->_raw_size += text_pad;
+ asection * text = obj_textsec (abfd);
+ asection * data = obj_datasec (abfd);
+
+ text_pad = data->vma - (text->vma + text->size);
+ /* Only pad the text section if the data
+ section is going to be placed after it. */
+ if (text_pad > 0)
+ text->size += text_pad;
}
- obj_datasec(abfd)->filepos = (obj_textsec(abfd)->filepos
- + obj_textsec(abfd)->_raw_size);
-
+ obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
+ + obj_textsec (abfd)->size);
+
/* Fix up exec header while we're at it. */
- execp->a_text = obj_textsec(abfd)->_raw_size;
+ execp->a_text = obj_textsec (abfd)->size;
if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
- execp->a_text += adata(abfd).exec_bytes_size;
+ execp->a_text += adata (abfd).exec_bytes_size;
if (obj_aout_subformat (abfd) == q_magic_format)
- N_SET_MAGIC (*execp, QMAGIC);
+ N_SET_MAGIC (execp, QMAGIC);
else
- N_SET_MAGIC (*execp, ZMAGIC);
+ N_SET_MAGIC (execp, ZMAGIC);
/* Spec says data section should be rounded up to page boundary. */
- obj_datasec(abfd)->_raw_size
- = align_power (obj_datasec(abfd)->_raw_size,
- obj_bsssec(abfd)->alignment_power);
- execp->a_data = BFD_ALIGN (obj_datasec(abfd)->_raw_size,
- adata(abfd).page_size);
- data_pad = execp->a_data - obj_datasec(abfd)->_raw_size;
+ obj_datasec (abfd)->size
+ = align_power (obj_datasec (abfd)->size,
+ obj_bsssec (abfd)->alignment_power);
+ execp->a_data = BFD_ALIGN (obj_datasec (abfd)->size,
+ adata (abfd).page_size);
+ data_pad = execp->a_data - obj_datasec (abfd)->size;
/* BSS. */
- if (!obj_bsssec(abfd)->user_set_vma)
- obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma
- + obj_datasec(abfd)->_raw_size);
+ if (!obj_bsssec (abfd)->user_set_vma)
+ obj_bsssec (abfd)->vma = (obj_datasec (abfd)->vma
+ + obj_datasec (abfd)->size);
/* If the BSS immediately follows the data section and extra space
in the page is left after the data section, fudge data
in the header so that the bss section looks smaller by that
(Note that a linker script, as well as the above assignment,
could have explicitly set the BSS vma to immediately follow
the data section.) */
- if (align_power (obj_bsssec(abfd)->vma, obj_bsssec(abfd)->alignment_power)
- == obj_datasec(abfd)->vma + obj_datasec(abfd)->_raw_size)
- execp->a_bss = (data_pad > obj_bsssec(abfd)->_raw_size) ? 0 :
- obj_bsssec(abfd)->_raw_size - data_pad;
+ if (align_power (obj_bsssec (abfd)->vma, obj_bsssec (abfd)->alignment_power)
+ == obj_datasec (abfd)->vma + obj_datasec (abfd)->size)
+ execp->a_bss = (data_pad > obj_bsssec (abfd)->size
+ ? 0 : obj_bsssec (abfd)->size - data_pad);
else
- execp->a_bss = obj_bsssec(abfd)->_raw_size;
+ execp->a_bss = obj_bsssec (abfd)->size;
}
static void
-adjust_n_magic (abfd, execp)
- bfd *abfd;
- struct internal_exec *execp;
+adjust_n_magic (bfd *abfd, struct internal_exec *execp)
{
- file_ptr pos = adata(abfd).exec_bytes_size;
+ file_ptr pos = adata (abfd).exec_bytes_size;
bfd_vma vma = 0;
int pad;
-
+
/* Text. */
- obj_textsec(abfd)->filepos = pos;
- if (!obj_textsec(abfd)->user_set_vma)
- obj_textsec(abfd)->vma = vma;
+ obj_textsec (abfd)->filepos = pos;
+ if (!obj_textsec (abfd)->user_set_vma)
+ obj_textsec (abfd)->vma = vma;
else
- vma = obj_textsec(abfd)->vma;
- pos += obj_textsec(abfd)->_raw_size;
- vma += obj_textsec(abfd)->_raw_size;
+ vma = obj_textsec (abfd)->vma;
+ pos += obj_textsec (abfd)->size;
+ vma += obj_textsec (abfd)->size;
/* Data. */
- obj_datasec(abfd)->filepos = pos;
- if (!obj_datasec(abfd)->user_set_vma)
- obj_datasec(abfd)->vma = BFD_ALIGN (vma, adata(abfd).segment_size);
- vma = obj_datasec(abfd)->vma;
-
+ obj_datasec (abfd)->filepos = pos;
+ if (!obj_datasec (abfd)->user_set_vma)
+ obj_datasec (abfd)->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
+ vma = obj_datasec (abfd)->vma;
+
/* Since BSS follows data immediately, see if it needs alignment. */
- vma += obj_datasec(abfd)->_raw_size;
- pad = align_power (vma, obj_bsssec(abfd)->alignment_power) - vma;
- obj_datasec(abfd)->_raw_size += pad;
- pos += obj_datasec(abfd)->_raw_size;
+ vma += obj_datasec (abfd)->size;
+ pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
+ obj_datasec (abfd)->size += pad;
+ pos += obj_datasec (abfd)->size;
/* BSS. */
- if (!obj_bsssec(abfd)->user_set_vma)
- obj_bsssec(abfd)->vma = vma;
+ if (!obj_bsssec (abfd)->user_set_vma)
+ obj_bsssec (abfd)->vma = vma;
else
- vma = obj_bsssec(abfd)->vma;
+ vma = obj_bsssec (abfd)->vma;
/* Fix up exec header. */
- execp->a_text = obj_textsec(abfd)->_raw_size;
- execp->a_data = obj_datasec(abfd)->_raw_size;
- execp->a_bss = obj_bsssec(abfd)->_raw_size;
- N_SET_MAGIC (*execp, NMAGIC);
+ execp->a_text = obj_textsec (abfd)->size;
+ execp->a_data = obj_datasec (abfd)->size;
+ execp->a_bss = obj_bsssec (abfd)->size;
+ N_SET_MAGIC (execp, NMAGIC);
}
-boolean
-NAME(aout,adjust_sizes_and_vmas) (abfd, text_size, text_end)
- bfd *abfd;
- bfd_size_type *text_size;
- file_ptr *text_end;
+bfd_boolean
+NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
{
struct internal_exec *execp = exec_hdr (abfd);
- if (! NAME(aout,make_sections) (abfd))
- return false;
+ if (! NAME (aout, make_sections) (abfd))
+ return FALSE;
- if (adata(abfd).magic != undecided_magic)
- return true;
+ if (adata (abfd).magic != undecided_magic)
+ return TRUE;
- obj_textsec(abfd)->_raw_size =
- align_power(obj_textsec(abfd)->_raw_size,
- obj_textsec(abfd)->alignment_power);
+ obj_textsec (abfd)->size =
+ align_power (obj_textsec (abfd)->size,
+ obj_textsec (abfd)->alignment_power);
- *text_size = obj_textsec (abfd)->_raw_size;
/* Rule (heuristic) for when to pad to a new page. Note that there
are (at least) two ways demand-paged (ZMAGIC) files have been
handled. Most Berkeley-based systems start the text segment at
(TARGET_PAGE_SIZE). However, newer versions of SUNOS start the text
segment right after the exec header; the latter is counted in the
text segment size, and is paged in by the kernel with the rest of
- the text. */
+ the text. */
/* This perhaps isn't the right way to do this, but made it simpler for me
to understand enough to implement it. Better would probably be to go
if (abfd->flags & D_PAGED)
/* Whether or not WP_TEXT is set -- let D_PAGED override. */
- adata(abfd).magic = z_magic;
+ adata (abfd).magic = z_magic;
else if (abfd->flags & WP_TEXT)
- adata(abfd).magic = n_magic;
+ adata (abfd).magic = n_magic;
else
- adata(abfd).magic = o_magic;
+ adata (abfd).magic = o_magic;
#ifdef BFD_AOUT_DEBUG /* requires gcc2 */
#if __GNUC__ >= 2
fprintf (stderr, "%s text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x,%x>\n",
({ char *str;
- switch (adata(abfd).magic) {
- case n_magic: str = "NMAGIC"; break;
- case o_magic: str = "OMAGIC"; break;
- case z_magic: str = "ZMAGIC"; break;
- default: abort ();
- }
+ switch (adata (abfd).magic)
+ {
+ case n_magic: str = "NMAGIC"; break;
+ case o_magic: str = "OMAGIC"; break;
+ case z_magic: str = "ZMAGIC"; break;
+ default: abort ();
+ }
str;
}),
- obj_textsec(abfd)->vma, obj_textsec(abfd)->_raw_size,
- obj_textsec(abfd)->alignment_power,
- obj_datasec(abfd)->vma, obj_datasec(abfd)->_raw_size,
- obj_datasec(abfd)->alignment_power,
- obj_bsssec(abfd)->vma, obj_bsssec(abfd)->_raw_size,
- obj_bsssec(abfd)->alignment_power);
+ obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
+ obj_textsec (abfd)->alignment_power,
+ obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
+ obj_datasec (abfd)->alignment_power,
+ obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size,
+ obj_bsssec (abfd)->alignment_power);
#endif
#endif
- switch (adata(abfd).magic)
+ switch (adata (abfd).magic)
{
case o_magic:
adjust_o_magic (abfd, execp);
#ifdef BFD_AOUT_DEBUG
fprintf (stderr, " text=<%x,%x,%x> data=<%x,%x,%x> bss=<%x,%x>\n",
- obj_textsec(abfd)->vma, obj_textsec(abfd)->_raw_size,
- obj_textsec(abfd)->filepos,
- obj_datasec(abfd)->vma, obj_datasec(abfd)->_raw_size,
- obj_datasec(abfd)->filepos,
- obj_bsssec(abfd)->vma, obj_bsssec(abfd)->_raw_size);
+ obj_textsec (abfd)->vma, obj_textsec (abfd)->size,
+ obj_textsec (abfd)->filepos,
+ obj_datasec (abfd)->vma, obj_datasec (abfd)->size,
+ obj_datasec (abfd)->filepos,
+ obj_bsssec (abfd)->vma, obj_bsssec (abfd)->size);
#endif
- return true;
+ return TRUE;
}
/*
aout_@var{size}_new_section_hook
SYNOPSIS
- boolean aout_@var{size}_new_section_hook,
+ bfd_boolean aout_@var{size}_new_section_hook,
(bfd *abfd,
- asection *newsect));
+ asection *newsect);
DESCRIPTION
Called by the BFD in response to a @code{bfd_make_section}
request.
*/
-boolean
-NAME(aout,new_section_hook) (abfd, newsect)
- bfd *abfd;
- asection *newsect;
+bfd_boolean
+NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
{
- /* align to double at least */
- newsect->alignment_power = bfd_get_arch_info(abfd)->section_align_power;
-
+ /* Align to double at least. */
+ newsect->alignment_power = bfd_get_arch_info (abfd)->section_align_power;
if (bfd_get_format (abfd) == bfd_object)
- {
- if (obj_textsec(abfd) == NULL && !strcmp(newsect->name, ".text")) {
- obj_textsec(abfd)= newsect;
- newsect->target_index = N_TEXT;
- return true;
- }
-
- if (obj_datasec(abfd) == NULL && !strcmp(newsect->name, ".data")) {
- obj_datasec(abfd) = newsect;
- newsect->target_index = N_DATA;
- return true;
- }
-
- if (obj_bsssec(abfd) == NULL && !strcmp(newsect->name, ".bss")) {
- obj_bsssec(abfd) = newsect;
- newsect->target_index = N_BSS;
- return true;
- }
-
- }
+ {
+ if (obj_textsec (abfd) == NULL && !strcmp (newsect->name, ".text"))
+ {
+ obj_textsec (abfd)= newsect;
+ newsect->target_index = N_TEXT;
+ }
+ else if (obj_datasec (abfd) == NULL && !strcmp (newsect->name, ".data"))
+ {
+ obj_datasec (abfd) = newsect;
+ newsect->target_index = N_DATA;
+ }
+ else if (obj_bsssec (abfd) == NULL && !strcmp (newsect->name, ".bss"))
+ {
+ obj_bsssec (abfd) = newsect;
+ newsect->target_index = N_BSS;
+ }
+ }
- /* We allow more than three sections internally */
- return true;
+ /* We allow more than three sections internally. */
+ return _bfd_generic_new_section_hook (abfd, newsect);
}
-boolean
-NAME(aout,set_section_contents) (abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- PTR location;
- file_ptr offset;
- bfd_size_type count;
+bfd_boolean
+NAME (aout, set_section_contents) (bfd *abfd,
+ sec_ptr section,
+ const void * location,
+ file_ptr offset,
+ bfd_size_type count)
{
- file_ptr text_end;
- bfd_size_type text_size;
-
if (! abfd->output_has_begun)
{
- if (! NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end))
- return false;
+ if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
+ return FALSE;
}
if (section == obj_bsssec (abfd))
{
bfd_set_error (bfd_error_no_contents);
- return false;
+ return FALSE;
}
if (section != obj_textsec (abfd)
&& section != obj_datasec (abfd))
{
- bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
+ if (aout_section_merge_with_text_p (abfd, section))
+ section->filepos = obj_textsec (abfd)->filepos +
+ (section->vma - obj_textsec (abfd)->vma);
+ else
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: can not represent section `%pA' in a.out object file format"),
+ abfd, section);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return FALSE;
+ }
}
if (count != 0)
{
if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
- || bfd_write (location, 1, count, abfd) != count)
- return false;
+ || bfd_bwrite (location, count, abfd) != count)
+ return FALSE;
}
- return true;
+ return TRUE;
}
\f
/* Read the external symbols from an a.out file. */
-static boolean
-aout_get_external_symbols (abfd)
- bfd *abfd;
+static bfd_boolean
+aout_get_external_symbols (bfd *abfd)
{
- if (obj_aout_external_syms (abfd) == (struct external_nlist *) NULL)
+ if (obj_aout_external_syms (abfd) == NULL)
{
bfd_size_type count;
struct external_nlist *syms;
+ bfd_size_type amt = exec_hdr (abfd)->a_syms;
- count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE;
+ count = amt / EXTERNAL_NLIST_SIZE;
+ if (count == 0)
+ return TRUE; /* Nothing to do. */
+#ifdef USE_MMAP
+ if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd), amt,
+ &obj_aout_sym_window (abfd), TRUE))
+ return FALSE;
+ syms = (struct external_nlist *) obj_aout_sym_window (abfd).data;
+#else
/* We allocate using malloc to make the values easy to free
- later on. If we put them on the obstack it might not be
+ later on. If we put them on the objalloc it might not be
possible to free them. */
- syms = ((struct external_nlist *)
- malloc ((size_t) count * EXTERNAL_NLIST_SIZE));
- if (syms == (struct external_nlist *) NULL && count != 0)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ syms = (struct external_nlist *) bfd_malloc (amt);
+ if (syms == NULL)
+ return FALSE;
if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
- || (bfd_read (syms, 1, exec_hdr (abfd)->a_syms, abfd)
- != exec_hdr (abfd)->a_syms))
+ || bfd_bread (syms, amt, abfd) != amt)
{
free (syms);
- return false;
+ return FALSE;
}
+#endif
obj_aout_external_syms (abfd) = syms;
obj_aout_external_sym_count (abfd) = count;
}
-
+
if (obj_aout_external_strings (abfd) == NULL
&& exec_hdr (abfd)->a_syms != 0)
{
unsigned char string_chars[BYTES_IN_WORD];
bfd_size_type stringsize;
char *strings;
+ bfd_size_type amt = BYTES_IN_WORD;
/* Get the size of the strings. */
if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
- || (bfd_read ((PTR) string_chars, BYTES_IN_WORD, 1, abfd)
- != BYTES_IN_WORD))
- return false;
+ || bfd_bread ((void *) string_chars, amt, abfd) != amt)
+ return FALSE;
stringsize = GET_WORD (abfd, string_chars);
-
- strings = (char *) malloc ((size_t) stringsize + 1);
- if (strings == NULL)
+ if (stringsize == 0)
+ stringsize = 1;
+ else if (stringsize < BYTES_IN_WORD
+ || (size_t) stringsize != stringsize)
{
- bfd_set_error (bfd_error_no_memory);
- return false;
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
}
- /* Skip space for the string count in the buffer for convenience
- when using indexes. */
- if (bfd_read (strings + BYTES_IN_WORD, 1, stringsize - BYTES_IN_WORD,
- abfd)
- != stringsize - BYTES_IN_WORD)
+#ifdef USE_MMAP
+ if (stringsize >= BYTES_IN_WORD)
{
- free (strings);
- return false;
+ if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize + 1,
+ &obj_aout_string_window (abfd), TRUE))
+ return FALSE;
+ strings = (char *) obj_aout_string_window (abfd).data;
}
+ else
+#endif
+ {
+ strings = (char *) bfd_malloc (stringsize + 1);
+ if (strings == NULL)
+ return FALSE;
+ if (stringsize >= BYTES_IN_WORD)
+ {
+ /* Keep the string count in the buffer for convenience
+ when indexing with e_strx. */
+ amt = stringsize - BYTES_IN_WORD;
+ if (bfd_bread (strings + BYTES_IN_WORD, amt, abfd) != amt)
+ {
+ free (strings);
+ return FALSE;
+ }
+ }
+ }
/* Ensure that a zero index yields an empty string. */
strings[0] = '\0';
- /* Sanity preservation. */
- strings[stringsize] = '\0';
+ /* Ensure that the string buffer is NUL terminated. */
+ strings[stringsize] = 0;
obj_aout_external_strings (abfd) = strings;
obj_aout_external_string_size (abfd) = stringsize;
}
- return true;
+ return TRUE;
}
/* Translate an a.out symbol into a BFD symbol. The desc, other, type
nlist structure. This function is responsible for setting
symbol->flags and symbol->section, and adjusting symbol->value. */
-static boolean
-translate_from_native_sym_flags (abfd, cache_ptr)
- bfd *abfd;
- aout_symbol_type *cache_ptr;
+static bfd_boolean
+translate_from_native_sym_flags (bfd *abfd, aout_symbol_type *cache_ptr)
{
flagword visible;
asection *sec;
/* This is a debugging symbol. */
-
cache_ptr->symbol.flags = BSF_DEBUGGING;
/* Work out the symbol section. */
cache_ptr->symbol.section = sec;
cache_ptr->symbol.value -= sec->vma;
- return true;
+ return TRUE;
}
/* Get the default visibility. This does not apply to all types, so
case N_SETD: case N_SETD | N_EXT:
case N_SETB: case N_SETB | N_EXT:
{
- asection *section;
- arelent_chain *reloc;
- asection *into_section;
-
- /* This is a set symbol. The name of the symbol is the name
- of the set (e.g., __CTOR_LIST__). The value of the symbol
- is the value to add to the set. We create a section with
- the same name as the symbol, and add a reloc to insert the
- appropriate value into the section.
-
- This action is actually obsolete; it used to make the
- linker do the right thing, but the linker no longer uses
- this function. */
-
- section = bfd_get_section_by_name (abfd, cache_ptr->symbol.name);
- if (section == NULL)
- {
- char *copy;
-
- copy = bfd_alloc (abfd, strlen (cache_ptr->symbol.name) + 1);
- if (copy == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
-
- strcpy (copy, cache_ptr->symbol.name);
- section = bfd_make_section (abfd, copy);
- if (section == NULL)
- return false;
- }
-
- reloc = (arelent_chain *) bfd_alloc (abfd, sizeof (arelent_chain));
- if (reloc == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
-
- /* Build a relocation entry for the constructor. */
+ /* This code is no longer needed. It used to be used to make
+ the linker handle set symbols, but they are now handled in
+ the add_symbols routine instead. */
switch (cache_ptr->type & N_TYPE)
{
case N_SETA:
- into_section = bfd_abs_section_ptr;
- cache_ptr->type = N_ABS;
+ cache_ptr->symbol.section = bfd_abs_section_ptr;
break;
case N_SETT:
- into_section = obj_textsec (abfd);
- cache_ptr->type = N_TEXT;
+ cache_ptr->symbol.section = obj_textsec (abfd);
break;
case N_SETD:
- into_section = obj_datasec (abfd);
- cache_ptr->type = N_DATA;
+ cache_ptr->symbol.section = obj_datasec (abfd);
break;
case N_SETB:
- into_section = obj_bsssec (abfd);
- cache_ptr->type = N_BSS;
+ cache_ptr->symbol.section = obj_bsssec (abfd);
break;
}
- /* Build a relocation pointing into the constructor section
- pointing at the symbol in the set vector specified. */
- reloc->relent.addend = cache_ptr->symbol.value;
- cache_ptr->symbol.section = into_section;
- reloc->relent.sym_ptr_ptr = into_section->symbol_ptr_ptr;
-
- /* We modify the symbol to belong to a section depending upon
- the name of the symbol, and add to the size of the section
- to contain a pointer to the symbol. Build a reloc entry to
- relocate to this symbol attached to this section. */
- section->flags = SEC_CONSTRUCTOR | SEC_RELOC;
-
- section->reloc_count++;
- section->alignment_power = 2;
-
- reloc->next = section->constructor_chain;
- section->constructor_chain = reloc;
- reloc->relent.address = section->_raw_size;
- section->_raw_size += BYTES_IN_WORD;
-
- reloc->relent.howto = CTOR_TABLE_RELOC_HOWTO(abfd);
-
cache_ptr->symbol.flags |= BSF_CONSTRUCTOR;
}
break;
break;
}
- return true;
+ return TRUE;
}
/* Set the fields of SYM_POINTER according to CACHE_PTR. */
-static boolean
-translate_to_native_sym_flags (abfd, cache_ptr, sym_pointer)
- bfd *abfd;
- asymbol *cache_ptr;
- struct external_nlist *sym_pointer;
+static bfd_boolean
+translate_to_native_sym_flags (bfd *abfd,
+ asymbol *cache_ptr,
+ struct external_nlist *sym_pointer)
{
bfd_vma value = cache_ptr->value;
asection *sec;
{
/* This case occurs, e.g., for the *DEBUG* section of a COFF
file. */
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: can not represent section for symbol `%s' in a.out "
+ "object file format"),
+ abfd,
+ cache_ptr->name != NULL ? cache_ptr->name : _("*unknown*"));
bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
+ return FALSE;
}
if (sec->output_section != NULL)
sym_pointer->e_type[0] = N_UNDF | N_EXT;
else
{
- bfd_set_error (bfd_error_nonrepresentable_section);
- return false;
+ if (aout_section_merge_with_text_p (abfd, sec))
+ sym_pointer->e_type[0] |= N_TEXT;
+ else
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: can not represent section `%pA' in a.out object file format"),
+ abfd, sec);
+ bfd_set_error (bfd_error_nonrepresentable_section);
+ return FALSE;
+ }
}
- /* Turn the symbol from section relative to absolute again */
+ /* Turn the symbol from section relative to absolute again. */
value += sec->vma + off;
if ((cache_ptr->flags & BSF_WARNING) != 0)
sym_pointer->e_type[0] = ((aout_symbol_type *) cache_ptr)->type;
else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
sym_pointer->e_type[0] |= N_EXT;
+ else if ((cache_ptr->flags & BSF_LOCAL) != 0)
+ sym_pointer->e_type[0] &= ~N_EXT;
if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
{
int type = ((aout_symbol_type *) cache_ptr)->type;
+
switch (type)
{
case N_ABS: type = N_SETA; break;
sym_pointer->e_type[0] = type;
}
- PUT_WORD(abfd, value, sym_pointer->e_value);
+ PUT_WORD (abfd, value, sym_pointer->e_value);
- return true;
+ return TRUE;
}
\f
-/* Native-level interface to symbols. */
+/* Native-level interface to symbols. */
asymbol *
-NAME(aout,make_empty_symbol) (abfd)
- bfd *abfd;
+NAME (aout, make_empty_symbol) (bfd *abfd)
{
- aout_symbol_type *new =
- (aout_symbol_type *)bfd_zalloc (abfd, sizeof (aout_symbol_type));
- if (!new)
- {
- bfd_set_error (bfd_error_no_memory);
- return NULL;
- }
- new->symbol.the_bfd = abfd;
+ bfd_size_type amt = sizeof (aout_symbol_type);
+
+ aout_symbol_type *new_symbol = (aout_symbol_type *) bfd_zalloc (abfd, amt);
+ if (!new_symbol)
+ return NULL;
+ new_symbol->symbol.the_bfd = abfd;
- return &new->symbol;
+ return &new_symbol->symbol;
}
/* Translate a set of internal symbols into external symbols. */
-boolean
-NAME(aout,translate_symbol_table) (abfd, in, ext, count, str, strsize, dynamic)
- bfd *abfd;
- aout_symbol_type *in;
- struct external_nlist *ext;
- bfd_size_type count;
- char *str;
- bfd_size_type strsize;
- boolean dynamic;
+bfd_boolean
+NAME (aout, translate_symbol_table) (bfd *abfd,
+ aout_symbol_type *in,
+ struct external_nlist *ext,
+ bfd_size_type count,
+ char *str,
+ bfd_size_type strsize,
+ bfd_boolean dynamic)
{
struct external_nlist *ext_end;
else if (x < strsize)
in->symbol.name = str + x;
else
- return false;
+ {
+ _bfd_error_handler
+ (_("%pB: invalid string offset %" PRIu64 " >= %" PRIu64),
+ abfd, (uint64_t) x, (uint64_t) strsize);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
in->symbol.value = GET_SWORD (abfd, ext->e_value);
- in->desc = bfd_h_get_16 (abfd, ext->e_desc);
- in->other = bfd_h_get_8 (abfd, ext->e_other);
- in->type = bfd_h_get_8 (abfd, ext->e_type);
+ in->desc = H_GET_16 (abfd, ext->e_desc);
+ in->other = H_GET_8 (abfd, ext->e_other);
+ in->type = H_GET_8 (abfd, ext->e_type);
in->symbol.udata.p = NULL;
if (! translate_from_native_sym_flags (abfd, in))
- return false;
+ return FALSE;
if (dynamic)
in->symbol.flags |= BSF_DYNAMIC;
}
- return true;
+ return TRUE;
}
/* We read the symbols into a buffer, which is discarded when this
function exits. We read the strings into a buffer large enough to
- hold them all plus all the cached symbol entries. */
+ hold them all plus all the cached symbol entries. */
-boolean
-NAME(aout,slurp_symbol_table) (abfd)
- bfd *abfd;
+bfd_boolean
+NAME (aout, slurp_symbol_table) (bfd *abfd)
{
struct external_nlist *old_external_syms;
aout_symbol_type *cached;
- size_t cached_size;
+ bfd_size_type cached_size;
- /* If there's no work to be done, don't do any */
- if (obj_aout_symbols (abfd) != (aout_symbol_type *) NULL)
- return true;
+ /* If there's no work to be done, don't do any. */
+ if (obj_aout_symbols (abfd) != NULL)
+ return TRUE;
old_external_syms = obj_aout_external_syms (abfd);
if (! aout_get_external_symbols (abfd))
- return false;
+ return FALSE;
- cached_size = (obj_aout_external_sym_count (abfd)
- * sizeof (aout_symbol_type));
- cached = (aout_symbol_type *) malloc (cached_size);
- if (cached == NULL && cached_size != 0)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
- if (cached_size != 0)
- memset (cached, 0, cached_size);
+ cached_size = obj_aout_external_sym_count (abfd);
+ if (cached_size == 0)
+ return TRUE; /* Nothing to do. */
+
+ cached_size *= sizeof (aout_symbol_type);
+ cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
+ if (cached == NULL)
+ return FALSE;
/* Convert from external symbol information to internal. */
- if (! (NAME(aout,translate_symbol_table)
+ if (! (NAME (aout, translate_symbol_table)
(abfd, cached,
obj_aout_external_syms (abfd),
obj_aout_external_sym_count (abfd),
obj_aout_external_strings (abfd),
obj_aout_external_string_size (abfd),
- false)))
+ FALSE)))
{
free (cached);
- return false;
+ return FALSE;
}
bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
want the external symbol information, so if it was allocated
because of our call to aout_get_external_symbols, we free it up
right away to save space. */
- if (old_external_syms == (struct external_nlist *) NULL
- && obj_aout_external_syms (abfd) != (struct external_nlist *) NULL)
+ if (old_external_syms == NULL
+ && obj_aout_external_syms (abfd) != NULL)
{
+#ifdef USE_MMAP
+ bfd_free_window (&obj_aout_sym_window (abfd));
+#else
free (obj_aout_external_syms (abfd));
+#endif
obj_aout_external_syms (abfd) = NULL;
}
- return true;
+ return TRUE;
}
\f
/* We use a hash table when writing out symbols so that we only write
This hash table code breaks dbx on SunOS 4.1.3, so we don't do it
if BFD_TRADITIONAL_FORMAT is set. */
-static bfd_size_type add_to_stringtab
- PARAMS ((bfd *, struct bfd_strtab_hash *, const char *, boolean));
-static boolean emit_stringtab PARAMS ((bfd *, struct bfd_strtab_hash *));
-
/* Get the index of a string in a strtab, adding it if it is not
already present. */
-static INLINE bfd_size_type
-add_to_stringtab (abfd, tab, str, copy)
- bfd *abfd;
- struct bfd_strtab_hash *tab;
- const char *str;
- boolean copy;
+static inline bfd_size_type
+add_to_stringtab (bfd *abfd,
+ struct bfd_strtab_hash *tab,
+ const char *str,
+ bfd_boolean copy)
{
- boolean hash;
- bfd_size_type index;
+ bfd_boolean hash;
+ bfd_size_type str_index;
/* An index of 0 always means the empty string. */
if (str == 0 || *str == '\0')
/* Don't hash if BFD_TRADITIONAL_FORMAT is set, because SunOS dbx
doesn't understand a hashed string table. */
- hash = true;
+ hash = TRUE;
if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
- hash = false;
+ hash = FALSE;
- index = _bfd_stringtab_add (tab, str, hash, copy);
+ str_index = _bfd_stringtab_add (tab, str, hash, copy);
- if (index != (bfd_size_type) -1)
- {
- /* Add BYTES_IN_WORD to the return value to account for the
- space taken up by the string table size. */
- index += BYTES_IN_WORD;
- }
+ if (str_index != (bfd_size_type) -1)
+ /* Add BYTES_IN_WORD to the return value to account for the
+ space taken up by the string table size. */
+ str_index += BYTES_IN_WORD;
- return index;
+ return str_index;
}
/* Write out a strtab. ABFD is already at the right location in the
file. */
-static boolean
-emit_stringtab (abfd, tab)
- register bfd *abfd;
- struct bfd_strtab_hash *tab;
+static bfd_boolean
+emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
{
bfd_byte buffer[BYTES_IN_WORD];
+ bfd_size_type amt = BYTES_IN_WORD;
/* The string table starts with the size. */
PUT_WORD (abfd, _bfd_stringtab_size (tab) + BYTES_IN_WORD, buffer);
- if (bfd_write ((PTR) buffer, 1, BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
- return false;
+ if (bfd_bwrite ((void *) buffer, amt, abfd) != amt)
+ return FALSE;
return _bfd_stringtab_emit (abfd, tab);
}
\f
-boolean
-NAME(aout,write_syms) (abfd)
- bfd *abfd;
+bfd_boolean
+NAME (aout, write_syms) (bfd *abfd)
{
unsigned int count ;
asymbol **generic = bfd_get_outsymbols (abfd);
strtab = _bfd_stringtab_init ();
if (strtab == NULL)
- return false;
+ return FALSE;
for (count = 0; count < bfd_get_symcount (abfd); count++)
{
asymbol *g = generic[count];
bfd_size_type indx;
struct external_nlist nsp;
+ bfd_size_type amt;
- indx = add_to_stringtab (abfd, strtab, g->name, false);
+ indx = add_to_stringtab (abfd, strtab, g->name, FALSE);
if (indx == (bfd_size_type) -1)
goto error_return;
PUT_WORD (abfd, indx, (bfd_byte *) nsp.e_strx);
- if (bfd_asymbol_flavour(g) == abfd->xvec->flavour)
+ if (bfd_asymbol_flavour (g) == abfd->xvec->flavour)
{
- bfd_h_put_16(abfd, aout_symbol(g)->desc, nsp.e_desc);
- bfd_h_put_8(abfd, aout_symbol(g)->other, nsp.e_other);
- bfd_h_put_8(abfd, aout_symbol(g)->type, nsp.e_type);
+ H_PUT_16 (abfd, aout_symbol (g)->desc, nsp.e_desc);
+ H_PUT_8 (abfd, aout_symbol (g)->other, nsp.e_other);
+ H_PUT_8 (abfd, aout_symbol (g)->type, nsp.e_type);
}
else
{
- bfd_h_put_16(abfd,0, nsp.e_desc);
- bfd_h_put_8(abfd, 0, nsp.e_other);
- bfd_h_put_8(abfd, 0, nsp.e_type);
+ H_PUT_16 (abfd, 0, nsp.e_desc);
+ H_PUT_8 (abfd, 0, nsp.e_other);
+ H_PUT_8 (abfd, 0, nsp.e_type);
}
if (! translate_to_native_sym_flags (abfd, g, &nsp))
goto error_return;
- if (bfd_write((PTR)&nsp,1,EXTERNAL_NLIST_SIZE, abfd)
- != EXTERNAL_NLIST_SIZE)
+ amt = EXTERNAL_NLIST_SIZE;
+ if (bfd_bwrite ((void *) &nsp, amt, abfd) != amt)
goto error_return;
/* NB: `KEEPIT' currently overlays `udata.p', so set this only
_bfd_stringtab_free (strtab);
- return true;
+ return TRUE;
error_return:
_bfd_stringtab_free (strtab);
- return false;
+ return FALSE;
}
-
\f
long
-NAME(aout,get_symtab) (abfd, location)
- bfd *abfd;
- asymbol **location;
+NAME (aout, canonicalize_symtab) (bfd *abfd, asymbol **location)
{
- unsigned int counter = 0;
- aout_symbol_type *symbase;
+ unsigned int counter = 0;
+ aout_symbol_type *symbase;
- if (!NAME(aout,slurp_symbol_table)(abfd))
- return -1;
+ if (!NAME (aout, slurp_symbol_table) (abfd))
+ return -1;
- for (symbase = obj_aout_symbols(abfd); counter++ < bfd_get_symcount (abfd);)
- *(location++) = (asymbol *)( symbase++);
- *location++ =0;
- return bfd_get_symcount (abfd);
+ for (symbase = obj_aout_symbols (abfd);
+ counter++ < bfd_get_symcount (abfd);
+ )
+ *(location++) = (asymbol *) (symbase++);
+ *location++ =0;
+ return bfd_get_symcount (abfd);
}
-
\f
-/* Standard reloc stuff */
-/* Output standard relocation information to a file in target byte order. */
+/* Standard reloc stuff. */
+/* Output standard relocation information to a file in target byte order. */
+
+extern void NAME (aout, swap_std_reloc_out)
+ (bfd *, arelent *, struct reloc_std_external *);
void
-NAME(aout,swap_std_reloc_out) (abfd, g, natptr)
- bfd *abfd;
- arelent *g;
- struct reloc_std_external *natptr;
+NAME (aout, swap_std_reloc_out) (bfd *abfd,
+ arelent *g,
+ struct reloc_std_external *natptr)
{
int r_index;
asymbol *sym = *(g->sym_ptr_ptr);
int r_baserel, r_jmptable, r_relative;
asection *output_section = sym->section->output_section;
- PUT_WORD(abfd, g->address, natptr->r_address);
+ PUT_WORD (abfd, g->address, natptr->r_address);
- r_length = g->howto->size ; /* Size as a power of two */
- r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
+ BFD_ASSERT (g->howto != NULL);
+ r_length = g->howto->size ; /* Size as a power of two. */
+ r_pcrel = (int) g->howto->pc_relative; /* Relative to PC? */
/* XXX This relies on relocs coming from a.out files. */
r_baserel = (g->howto->type & 8) != 0;
r_jmptable = (g->howto->type & 16) != 0;
r_relative = (g->howto->type & 32) != 0;
-#if 0
- /* For a standard reloc, the addend is in the object file. */
- r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma;
-#endif
-
- /* name was clobbered by aout_write_syms to be symbol index */
+ /* Name was clobbered by aout_write_syms to be symbol index. */
/* If this relocation is relative to a symbol then set the
r_index to the symbols index, and the r_extern bit.
Absolute symbols can come in in two ways, either as an offset
from the abs section, or as a symbol which has an abs value.
- check for that here
- */
-
+ check for that here. */
if (bfd_is_com_section (output_section)
|| bfd_is_abs_section (output_section)
- || bfd_is_und_section (output_section))
+ || bfd_is_und_section (output_section)
+ /* PR gas/3041 a.out relocs against weak symbols
+ must be treated as if they were against externs. */
+ || (sym->flags & BSF_WEAK))
{
if (bfd_abs_section_ptr->symbol == sym)
- {
- /* Whoops, looked like an abs symbol, but is really an offset
- from the abs section */
- r_index = 0;
- r_extern = 0;
- }
+ {
+ /* Whoops, looked like an abs symbol, but is
+ really an offset from the abs section. */
+ r_index = N_ABS;
+ r_extern = 0;
+ }
else
- {
- /* Fill in symbol */
- r_extern = 1;
- r_index = (*(g->sym_ptr_ptr))->KEEPIT;
-
- }
+ {
+ /* Fill in symbol. */
+ r_extern = 1;
+ r_index = (*(g->sym_ptr_ptr))->KEEPIT;
+ }
}
else
{
- /* Just an ordinary section */
+ /* Just an ordinary section. */
r_extern = 0;
r_index = output_section->target_index;
}
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
+ /* Now the fun stuff. */
+ if (bfd_header_big_endian (abfd))
+ {
natptr->r_index[0] = r_index >> 16;
natptr->r_index[1] = r_index >> 8;
natptr->r_index[2] = r_index;
- natptr->r_type[0] =
- (r_extern? RELOC_STD_BITS_EXTERN_BIG: 0)
- | (r_pcrel? RELOC_STD_BITS_PCREL_BIG: 0)
- | (r_baserel? RELOC_STD_BITS_BASEREL_BIG: 0)
- | (r_jmptable? RELOC_STD_BITS_JMPTABLE_BIG: 0)
- | (r_relative? RELOC_STD_BITS_RELATIVE_BIG: 0)
- | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG);
- } else {
- natptr->r_index[2] = r_index >> 16;
- natptr->r_index[1] = r_index >> 8;
- natptr->r_index[0] = r_index;
- natptr->r_type[0] =
- (r_extern? RELOC_STD_BITS_EXTERN_LITTLE: 0)
- | (r_pcrel? RELOC_STD_BITS_PCREL_LITTLE: 0)
- | (r_baserel? RELOC_STD_BITS_BASEREL_LITTLE: 0)
- | (r_jmptable? RELOC_STD_BITS_JMPTABLE_LITTLE: 0)
- | (r_relative? RELOC_STD_BITS_RELATIVE_LITTLE: 0)
- | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE);
- }
+ natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
+ | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
+ | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
+ | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
+ | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
+ | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
+ }
+ else
+ {
+ natptr->r_index[2] = r_index >> 16;
+ natptr->r_index[1] = r_index >> 8;
+ natptr->r_index[0] = r_index;
+ natptr->r_type[0] = ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
+ | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
+ | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
+ | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
+ | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
+ | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
+ }
}
+/* Extended stuff. */
+/* Output extended relocation information to a file in target byte order. */
-/* Extended stuff */
-/* Output extended relocation information to a file in target byte order. */
+extern void NAME (aout, swap_ext_reloc_out)
+ (bfd *, arelent *, struct reloc_ext_external *);
void
-NAME(aout,swap_ext_reloc_out) (abfd, g, natptr)
- bfd *abfd;
- arelent *g;
- register struct reloc_ext_external *natptr;
+NAME (aout, swap_ext_reloc_out) (bfd *abfd,
+ arelent *g,
+ struct reloc_ext_external *natptr)
{
int r_index;
int r_extern;
unsigned int r_type;
- unsigned int r_addend;
+ bfd_vma r_addend;
asymbol *sym = *(g->sym_ptr_ptr);
asection *output_section = sym->section->output_section;
Absolute symbols can come in in two ways, either as an offset
from the abs section, or as a symbol which has an abs value.
check for that here. */
-
if (bfd_is_abs_section (bfd_get_section (sym)))
{
r_extern = 0;
- r_index = 0;
+ r_index = N_ABS;
}
else if ((sym->flags & BSF_SECTION_SYM) == 0)
{
}
else
{
- /* Just an ordinary section */
+ /* Just an ordinary section. */
r_extern = 0;
r_index = output_section->target_index;
}
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
- natptr->r_index[0] = r_index >> 16;
- natptr->r_index[1] = r_index >> 8;
- natptr->r_index[2] = r_index;
- natptr->r_type[0] =
- ((r_extern? RELOC_EXT_BITS_EXTERN_BIG: 0)
- | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
- } else {
- natptr->r_index[2] = r_index >> 16;
- natptr->r_index[1] = r_index >> 8;
- natptr->r_index[0] = r_index;
- natptr->r_type[0] =
- (r_extern? RELOC_EXT_BITS_EXTERN_LITTLE: 0)
- | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
- }
+ /* Now the fun stuff. */
+ if (bfd_header_big_endian (abfd))
+ {
+ natptr->r_index[0] = r_index >> 16;
+ natptr->r_index[1] = r_index >> 8;
+ natptr->r_index[2] = r_index;
+ natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
+ | (r_type << RELOC_EXT_BITS_TYPE_SH_BIG));
+ }
+ else
+ {
+ natptr->r_index[2] = r_index >> 16;
+ natptr->r_index[1] = r_index >> 8;
+ natptr->r_index[0] = r_index;
+ natptr->r_type[0] = ((r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
+ | (r_type << RELOC_EXT_BITS_TYPE_SH_LITTLE));
+ }
PUT_WORD (abfd, r_addend, natptr->r_addend);
}
Aout keeps all it's symbols based from zero, so the symbol would
contain 60. This macro subs the base of each section from the value
- to give the true offset from the section */
-
-
-#define MOVE_ADDRESS(ad) \
- if (r_extern) { \
- /* undefined symbol */ \
- cache_ptr->sym_ptr_ptr = symbols + r_index; \
- cache_ptr->addend = ad; \
- } else { \
- /* defined, section relative. replace symbol with pointer to \
- symbol which points to section */ \
- switch (r_index) { \
- case N_TEXT: \
- case N_TEXT | N_EXT: \
- cache_ptr->sym_ptr_ptr = obj_textsec(abfd)->symbol_ptr_ptr; \
- cache_ptr->addend = ad - su->textsec->vma; \
- break; \
- case N_DATA: \
- case N_DATA | N_EXT: \
- cache_ptr->sym_ptr_ptr = obj_datasec(abfd)->symbol_ptr_ptr; \
- cache_ptr->addend = ad - su->datasec->vma; \
- break; \
- case N_BSS: \
- case N_BSS | N_EXT: \
- cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr; \
- cache_ptr->addend = ad - su->bsssec->vma; \
- break; \
- default: \
- case N_ABS: \
- case N_ABS | N_EXT: \
- cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
+ to give the true offset from the section. */
+
+#define MOVE_ADDRESS(ad) \
+ if (r_extern) \
+ { \
+ /* Undefined symbol. */ \
+ cache_ptr->sym_ptr_ptr = symbols + r_index; \
cache_ptr->addend = ad; \
- break; \
} \
- } \
+ else \
+ { \
+ /* Defined, section relative. Replace symbol with pointer to \
+ symbol which points to section. */ \
+ switch (r_index) \
+ { \
+ case N_TEXT: \
+ case N_TEXT | N_EXT: \
+ cache_ptr->sym_ptr_ptr = obj_textsec (abfd)->symbol_ptr_ptr; \
+ cache_ptr->addend = ad - su->textsec->vma; \
+ break; \
+ case N_DATA: \
+ case N_DATA | N_EXT: \
+ cache_ptr->sym_ptr_ptr = obj_datasec (abfd)->symbol_ptr_ptr; \
+ cache_ptr->addend = ad - su->datasec->vma; \
+ break; \
+ case N_BSS: \
+ case N_BSS | N_EXT: \
+ cache_ptr->sym_ptr_ptr = obj_bsssec (abfd)->symbol_ptr_ptr; \
+ cache_ptr->addend = ad - su->bsssec->vma; \
+ break; \
+ default: \
+ case N_ABS: \
+ case N_ABS | N_EXT: \
+ cache_ptr->sym_ptr_ptr = bfd_abs_section_ptr->symbol_ptr_ptr; \
+ cache_ptr->addend = ad; \
+ break; \
+ } \
+ }
void
-NAME(aout,swap_ext_reloc_in) (abfd, bytes, cache_ptr, symbols, symcount)
- bfd *abfd;
- struct reloc_ext_external *bytes;
- arelent *cache_ptr;
- asymbol **symbols;
- bfd_size_type symcount;
+NAME (aout, swap_ext_reloc_in) (bfd *abfd,
+ struct reloc_ext_external *bytes,
+ arelent *cache_ptr,
+ asymbol **symbols,
+ bfd_size_type symcount)
{
unsigned int r_index;
int r_extern;
cache_ptr->address = (GET_SWORD (abfd, bytes->r_address));
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
- r_index = (bytes->r_index[0] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[2];
- r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
- r_type = (bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
- >> RELOC_EXT_BITS_TYPE_SH_BIG;
- } else {
- r_index = (bytes->r_index[2] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[0];
- r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
- r_type = (bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
- >> RELOC_EXT_BITS_TYPE_SH_LITTLE;
- }
+ /* Now the fun stuff. */
+ if (bfd_header_big_endian (abfd))
+ {
+ r_index = (((unsigned int) bytes->r_index[0] << 16)
+ | ((unsigned int) bytes->r_index[1] << 8)
+ | bytes->r_index[2]);
+ r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
+ r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
+ >> RELOC_EXT_BITS_TYPE_SH_BIG);
+ }
+ else
+ {
+ r_index = (((unsigned int) bytes->r_index[2] << 16)
+ | ((unsigned int) bytes->r_index[1] << 8)
+ | bytes->r_index[0]);
+ r_extern = (0 != (bytes->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
+ r_type = ((bytes->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
+ >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
+ }
- cache_ptr->howto = howto_table_ext + r_type;
+ if (r_type < TABLE_SIZE (howto_table_ext))
+ cache_ptr->howto = howto_table_ext + r_type;
+ else
+ cache_ptr->howto = NULL;
/* Base relative relocs are always against the symbol table,
regardless of the setting of r_extern. r_extern just reflects
whether the symbol the reloc is against is local or global. */
- if (r_type == RELOC_BASE10
- || r_type == RELOC_BASE13
- || r_type == RELOC_BASE22)
+ if (r_type == (unsigned int) RELOC_BASE10
+ || r_type == (unsigned int) RELOC_BASE13
+ || r_type == (unsigned int) RELOC_BASE22)
r_extern = 1;
if (r_extern && r_index > symcount)
{
/* We could arrange to return an error, but it might be useful
- to see the file even if it is bad. */
+ to see the file even if it is bad. */
r_extern = 0;
r_index = N_ABS;
}
- MOVE_ADDRESS(GET_SWORD(abfd, bytes->r_addend));
+ MOVE_ADDRESS (GET_SWORD (abfd, bytes->r_addend));
}
void
-NAME(aout,swap_std_reloc_in) (abfd, bytes, cache_ptr, symbols, symcount)
- bfd *abfd;
- struct reloc_std_external *bytes;
- arelent *cache_ptr;
- asymbol **symbols;
- bfd_size_type symcount;
+NAME (aout, swap_std_reloc_in) (bfd *abfd,
+ struct reloc_std_external *bytes,
+ arelent *cache_ptr,
+ asymbol **symbols,
+ bfd_size_type symcount)
{
unsigned int r_index;
int r_extern;
struct aoutdata *su = &(abfd->tdata.aout_data->a);
unsigned int howto_idx;
- cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address);
-
- /* now the fun stuff */
- if (abfd->xvec->header_byteorder_big_p != false) {
- r_index = (bytes->r_index[0] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[2];
- r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
- r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
- r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
- r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
- r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
- r_length = (bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
- >> RELOC_STD_BITS_LENGTH_SH_BIG;
- } else {
- r_index = (bytes->r_index[2] << 16)
- | (bytes->r_index[1] << 8)
- | bytes->r_index[0];
- r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
- r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
- r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
- r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
- r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
- r_length = (bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
- >> RELOC_STD_BITS_LENGTH_SH_LITTLE;
- }
+ cache_ptr->address = H_GET_32 (abfd, bytes->r_address);
+
+ /* Now the fun stuff. */
+ if (bfd_header_big_endian (abfd))
+ {
+ r_index = (((unsigned int) bytes->r_index[0] << 16)
+ | ((unsigned int) bytes->r_index[1] << 8)
+ | bytes->r_index[2]);
+ r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
+ r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
+ r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
+ r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
+ r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
+ r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
+ >> RELOC_STD_BITS_LENGTH_SH_BIG);
+ }
+ else
+ {
+ r_index = (((unsigned int) bytes->r_index[2] << 16)
+ | ((unsigned int) bytes->r_index[1] << 8)
+ | bytes->r_index[0]);
+ r_extern = (0 != (bytes->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
+ r_pcrel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
+ r_baserel = (0 != (bytes->r_type[0] & RELOC_STD_BITS_BASEREL_LITTLE));
+ r_jmptable= (0 != (bytes->r_type[0] & RELOC_STD_BITS_JMPTABLE_LITTLE));
+ r_relative= (0 != (bytes->r_type[0] & RELOC_STD_BITS_RELATIVE_LITTLE));
+ r_length = ((bytes->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
+ >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
+ }
- howto_idx = r_length + 4 * r_pcrel + 8 * r_baserel
- + 16 * r_jmptable + 32 * r_relative;
- BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_std));
- cache_ptr->howto = howto_table_std + howto_idx;
- BFD_ASSERT (cache_ptr->howto->type != (unsigned int) -1);
+ howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
+ + 16 * r_jmptable + 32 * r_relative);
+ if (howto_idx < TABLE_SIZE (howto_table_std))
+ {
+ cache_ptr->howto = howto_table_std + howto_idx;
+ if (cache_ptr->howto->type == (unsigned int) -1)
+ cache_ptr->howto = NULL;
+ }
+ else
+ cache_ptr->howto = NULL;
/* Base relative relocs are always against the symbol table,
regardless of the setting of r_extern. r_extern just reflects
if (r_baserel)
r_extern = 1;
- if (r_extern && r_index > symcount)
+ if (r_extern && r_index >= symcount)
{
/* We could arrange to return an error, but it might be useful
- to see the file even if it is bad. */
+ to see the file even if it is bad. FIXME: Of course this
+ means that objdump -r *doesn't* see the actual reloc, and
+ objcopy silently writes a different reloc. */
r_extern = 0;
r_index = N_ABS;
}
- MOVE_ADDRESS(0);
+ MOVE_ADDRESS (0);
}
/* Read and swap the relocs for a section. */
-boolean
-NAME(aout,slurp_reloc_table) (abfd, asect, symbols)
- bfd *abfd;
- sec_ptr asect;
- asymbol **symbols;
+bfd_boolean
+NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
{
- unsigned int count;
+ bfd_size_type count;
bfd_size_type reloc_size;
- PTR relocs;
+ void * relocs;
arelent *reloc_cache;
size_t each_size;
unsigned int counter = 0;
arelent *cache_ptr;
+ bfd_size_type amt;
if (asect->relocation)
- return true;
+ return TRUE;
if (asect->flags & SEC_CONSTRUCTOR)
- return true;
+ return TRUE;
if (asect == obj_datasec (abfd))
- reloc_size = exec_hdr(abfd)->a_drsize;
+ reloc_size = exec_hdr (abfd)->a_drsize;
else if (asect == obj_textsec (abfd))
- reloc_size = exec_hdr(abfd)->a_trsize;
+ reloc_size = exec_hdr (abfd)->a_trsize;
else if (asect == obj_bsssec (abfd))
reloc_size = 0;
else
{
bfd_set_error (bfd_error_invalid_operation);
- return false;
+ return FALSE;
}
+ if (reloc_size == 0)
+ return TRUE; /* Nothing to be done. */
+
if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
- return false;
+ return FALSE;
each_size = obj_reloc_entry_size (abfd);
count = reloc_size / each_size;
+ if (count == 0)
+ return TRUE; /* Nothing to be done. */
- reloc_cache = (arelent *) malloc ((size_t) (count * sizeof (arelent)));
- if (reloc_cache == NULL && count != 0)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
- memset (reloc_cache, 0, count * sizeof (arelent));
+ amt = count * sizeof (arelent);
+ reloc_cache = (arelent *) bfd_zmalloc (amt);
+ if (reloc_cache == NULL)
+ return FALSE;
- relocs = malloc ((size_t) reloc_size);
- if (relocs == NULL && reloc_size != 0)
+ relocs = bfd_malloc (reloc_size);
+ if (relocs == NULL)
{
free (reloc_cache);
- bfd_set_error (bfd_error_no_memory);
- return false;
+ return FALSE;
}
- if (bfd_read (relocs, 1, reloc_size, abfd) != reloc_size)
+ if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
{
free (relocs);
free (reloc_cache);
- return false;
+ return FALSE;
}
cache_ptr = reloc_cache;
if (each_size == RELOC_EXT_SIZE)
{
- register struct reloc_ext_external *rptr =
- (struct reloc_ext_external *) relocs;
+ struct reloc_ext_external *rptr = (struct reloc_ext_external *) relocs;
for (; counter < count; counter++, rptr++, cache_ptr++)
- NAME(aout,swap_ext_reloc_in) (abfd, rptr, cache_ptr, symbols,
- bfd_get_symcount (abfd));
+ MY_swap_ext_reloc_in (abfd, rptr, cache_ptr, symbols,
+ (bfd_size_type) bfd_get_symcount (abfd));
}
else
{
- register struct reloc_std_external *rptr =
- (struct reloc_std_external *) relocs;
+ struct reloc_std_external *rptr = (struct reloc_std_external *) relocs;
for (; counter < count; counter++, rptr++, cache_ptr++)
MY_swap_std_reloc_in (abfd, rptr, cache_ptr, symbols,
- bfd_get_symcount (abfd));
+ (bfd_size_type) bfd_get_symcount (abfd));
}
free (relocs);
asect->relocation = reloc_cache;
asect->reloc_count = cache_ptr - reloc_cache;
- return true;
+ return TRUE;
}
/* Write out a relocation section into an object file. */
-boolean
-NAME(aout,squirt_out_relocs) (abfd, section)
- bfd *abfd;
- asection *section;
+bfd_boolean
+NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
{
arelent **generic;
unsigned char *native, *natptr;
size_t each_size;
unsigned int count = section->reloc_count;
- size_t natsize;
+ bfd_size_type natsize;
- if (count == 0) return true;
+ if (count == 0 || section->orelocation == NULL)
+ return TRUE;
each_size = obj_reloc_entry_size (abfd);
- natsize = each_size * count;
+ natsize = (bfd_size_type) each_size * count;
native = (unsigned char *) bfd_zalloc (abfd, natsize);
- if (!native) {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ if (!native)
+ return FALSE;
generic = section->orelocation;
for (natptr = native;
count != 0;
--count, natptr += each_size, ++generic)
- NAME(aout,swap_ext_reloc_out) (abfd, *generic, (struct reloc_ext_external *)natptr);
+ {
+ /* PR 20921: If the howto field has not been initialised then skip
+ this reloc.
+ PR 20929: Similarly for the symbol field. */
+ if ((*generic)->howto == NULL
+ || (*generic)->sym_ptr_ptr == NULL)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ _bfd_error_handler (_("\
+%pB: attempt to write out unknown reloc type"), abfd);
+ return FALSE;
+ }
+ MY_swap_ext_reloc_out (abfd, *generic,
+ (struct reloc_ext_external *) natptr);
+ }
}
else
{
for (natptr = native;
count != 0;
--count, natptr += each_size, ++generic)
- MY_swap_std_reloc_out(abfd, *generic, (struct reloc_std_external *)natptr);
+ {
+ if ((*generic)->howto == NULL
+ || (*generic)->sym_ptr_ptr == NULL)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ _bfd_error_handler (_("\
+%pB: attempt to write out unknown reloc type"), abfd);
+ return FALSE;
+ }
+ MY_swap_std_reloc_out (abfd, *generic,
+ (struct reloc_std_external *) natptr);
+ }
}
- if ( bfd_write ((PTR) native, 1, natsize, abfd) != natsize) {
- bfd_release(abfd, native);
- return false;
- }
+ if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
+ {
+ bfd_release (abfd, native);
+ return FALSE;
+ }
bfd_release (abfd, native);
- return true;
+ return TRUE;
}
-/* This is stupid. This function should be a boolean predicate */
+/* This is stupid. This function should be a boolean predicate. */
+
long
-NAME(aout,canonicalize_reloc) (abfd, section, relptr, symbols)
- bfd *abfd;
- sec_ptr section;
- arelent **relptr;
- asymbol **symbols;
+NAME (aout, canonicalize_reloc) (bfd *abfd,
+ sec_ptr section,
+ arelent **relptr,
+ asymbol **symbols)
{
arelent *tblptr = section->relocation;
unsigned int count;
return 0;
}
- if (!(tblptr || NAME(aout,slurp_reloc_table)(abfd, section, symbols)))
+ if (!(tblptr || NAME (aout, slurp_reloc_table) (abfd, section, symbols)))
return -1;
- if (section->flags & SEC_CONSTRUCTOR) {
- arelent_chain *chain = section->constructor_chain;
- for (count = 0; count < section->reloc_count; count ++) {
- *relptr ++ = &chain->relent;
- chain = chain->next;
+ if (section->flags & SEC_CONSTRUCTOR)
+ {
+ arelent_chain *chain = section->constructor_chain;
+ for (count = 0; count < section->reloc_count; count ++)
+ {
+ *relptr ++ = &chain->relent;
+ chain = chain->next;
+ }
}
- }
- else {
- tblptr = section->relocation;
+ else
+ {
+ tblptr = section->relocation;
- for (count = 0; count++ < section->reloc_count;)
- {
- *relptr++ = tblptr++;
- }
- }
+ for (count = 0; count++ < section->reloc_count; )
+ {
+ *relptr++ = tblptr++;
+ }
+ }
*relptr = 0;
return section->reloc_count;
}
long
-NAME(aout,get_reloc_upper_bound) (abfd, asect)
- bfd *abfd;
- sec_ptr asect;
+NAME (aout, get_reloc_upper_bound) (bfd *abfd, sec_ptr asect)
{
- if (bfd_get_format (abfd) != bfd_object) {
- bfd_set_error (bfd_error_invalid_operation);
- return -1;
- }
- if (asect->flags & SEC_CONSTRUCTOR) {
- return (sizeof (arelent *) * (asect->reloc_count+1));
- }
+ if (bfd_get_format (abfd) != bfd_object)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
+
+ if (asect->flags & SEC_CONSTRUCTOR)
+ return sizeof (arelent *) * (asect->reloc_count + 1);
if (asect == obj_datasec (abfd))
- return (sizeof (arelent *)
- * ((exec_hdr(abfd)->a_drsize / obj_reloc_entry_size (abfd))
- + 1));
+ return sizeof (arelent *)
+ * ((exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd))
+ + 1);
if (asect == obj_textsec (abfd))
- return (sizeof (arelent *)
- * ((exec_hdr(abfd)->a_trsize / obj_reloc_entry_size (abfd))
- + 1));
+ return sizeof (arelent *)
+ * ((exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd))
+ + 1);
if (asect == obj_bsssec (abfd))
return sizeof (arelent *);
bfd_set_error (bfd_error_invalid_operation);
return -1;
}
-
\f
long
-NAME(aout,get_symtab_upper_bound) (abfd)
- bfd *abfd;
+NAME (aout, get_symtab_upper_bound) (bfd *abfd)
{
- if (!NAME(aout,slurp_symbol_table)(abfd))
+ if (!NAME (aout, slurp_symbol_table) (abfd))
return -1;
return (bfd_get_symcount (abfd)+1) * (sizeof (aout_symbol_type *));
}
-/*ARGSUSED*/
- alent *
-NAME(aout,get_lineno) (ignore_abfd, ignore_symbol)
- bfd *ignore_abfd;
- asymbol *ignore_symbol;
+alent *
+NAME (aout, get_lineno) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
+ asymbol *ignore_symbol ATTRIBUTE_UNUSED)
{
-return (alent *)NULL;
+ return NULL;
}
-/*ARGSUSED*/
void
-NAME(aout,get_symbol_info) (ignore_abfd, symbol, ret)
- bfd *ignore_abfd;
- asymbol *symbol;
- symbol_info *ret;
+NAME (aout, get_symbol_info) (bfd *ignore_abfd ATTRIBUTE_UNUSED,
+ asymbol *symbol,
+ symbol_info *ret)
{
bfd_symbol_info (symbol, ret);
if (ret->type == '?')
{
- int type_code = aout_symbol(symbol)->type & 0xff;
- CONST char *stab_name = aout_stab_name(type_code);
+ int type_code = aout_symbol (symbol)->type & 0xff;
+ const char *stab_name = bfd_get_stab_name (type_code);
static char buf[10];
if (stab_name == NULL)
{
- sprintf(buf, "(%d)", type_code);
+ sprintf (buf, "(%d)", type_code);
stab_name = buf;
}
ret->type = '-';
- ret->stab_other = (unsigned)(aout_symbol(symbol)->other & 0xff);
- ret->stab_desc = (unsigned)(aout_symbol(symbol)->desc & 0xffff);
+ ret->stab_type = type_code;
+ ret->stab_other = (unsigned) (aout_symbol (symbol)->other & 0xff);
+ ret->stab_desc = (unsigned) (aout_symbol (symbol)->desc & 0xffff);
ret->stab_name = stab_name;
}
}
-/*ARGSUSED*/
void
-NAME(aout,print_symbol) (ignore_abfd, afile, symbol, how)
- bfd *ignore_abfd;
- PTR afile;
- asymbol *symbol;
- bfd_print_symbol_type how;
+NAME (aout, print_symbol) (bfd *abfd,
+ void * afile,
+ asymbol *symbol,
+ bfd_print_symbol_type how)
{
FILE *file = (FILE *)afile;
- switch (how) {
- case bfd_print_symbol_name:
- if (symbol->name)
- fprintf(file,"%s", symbol->name);
- break;
- case bfd_print_symbol_more:
- fprintf(file,"%4x %2x %2x",(unsigned)(aout_symbol(symbol)->desc & 0xffff),
- (unsigned)(aout_symbol(symbol)->other & 0xff),
- (unsigned)(aout_symbol(symbol)->type));
- break;
- case bfd_print_symbol_all:
+ switch (how)
{
- CONST char *section_name = symbol->section->name;
-
+ case bfd_print_symbol_name:
+ if (symbol->name)
+ fprintf (file,"%s", symbol->name);
+ break;
+ case bfd_print_symbol_more:
+ fprintf (file,"%4x %2x %2x",
+ (unsigned) (aout_symbol (symbol)->desc & 0xffff),
+ (unsigned) (aout_symbol (symbol)->other & 0xff),
+ (unsigned) (aout_symbol (symbol)->type));
+ break;
+ case bfd_print_symbol_all:
+ {
+ const char *section_name = symbol->section->name;
- bfd_print_symbol_vandf((PTR)file,symbol);
+ bfd_print_symbol_vandf (abfd, (void *)file, symbol);
- fprintf(file," %-5s %04x %02x %02x",
- section_name,
- (unsigned)(aout_symbol(symbol)->desc & 0xffff),
- (unsigned)(aout_symbol(symbol)->other & 0xff),
- (unsigned)(aout_symbol(symbol)->type & 0xff));
- if (symbol->name)
- fprintf(file," %s", symbol->name);
+ fprintf (file," %-5s %04x %02x %02x",
+ section_name,
+ (unsigned) (aout_symbol (symbol)->desc & 0xffff),
+ (unsigned) (aout_symbol (symbol)->other & 0xff),
+ (unsigned) (aout_symbol (symbol)->type & 0xff));
+ if (symbol->name)
+ fprintf (file," %s", symbol->name);
+ }
+ break;
}
- break;
- }
}
/* If we don't have to allocate more than 1MB to hold the generic
BFD asymbol structures. */
long
-NAME(aout,read_minisymbols) (abfd, dynamic, minisymsp, sizep)
- bfd *abfd;
- boolean dynamic;
- PTR *minisymsp;
- unsigned int *sizep;
+NAME (aout, read_minisymbols) (bfd *abfd,
+ bfd_boolean dynamic,
+ void * *minisymsp,
+ unsigned int *sizep)
{
if (dynamic)
- {
- /* We could handle the dynamic symbols here as well, but it's
- easier to hand them off. */
- return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
- }
+ /* We could handle the dynamic symbols here as well, but it's
+ easier to hand them off. */
+ return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
if (! aout_get_external_symbols (abfd))
return -1;
if (obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
return _bfd_generic_read_minisymbols (abfd, dynamic, minisymsp, sizep);
- *minisymsp = (PTR) obj_aout_external_syms (abfd);
+ *minisymsp = (void *) obj_aout_external_syms (abfd);
/* By passing the external symbols back from this routine, we are
giving up control over the memory block. Clear
by bfd_make_empty_symbol, which we fill in here. */
asymbol *
-NAME(aout,minisymbol_to_symbol) (abfd, dynamic, minisym, sym)
- bfd *abfd;
- boolean dynamic;
- const PTR minisym;
- asymbol *sym;
+NAME (aout, minisymbol_to_symbol) (bfd *abfd,
+ bfd_boolean dynamic,
+ const void * minisym,
+ asymbol *sym)
{
if (dynamic
|| obj_aout_external_sym_count (abfd) < MINISYM_THRESHOLD)
memset (sym, 0, sizeof (aout_symbol_type));
/* We call translate_symbol_table to translate a single symbol. */
- if (! (NAME(aout,translate_symbol_table)
+ if (! (NAME (aout, translate_symbol_table)
(abfd,
(aout_symbol_type *) sym,
(struct external_nlist *) minisym,
(bfd_size_type) 1,
obj_aout_external_strings (abfd),
obj_aout_external_string_size (abfd),
- false)))
+ FALSE)))
return NULL;
return sym;
}
-/*
- provided a BFD, a section and an offset into the section, calculate
- and return the name of the source file and the line nearest to the
- wanted location.
-*/
-
-boolean
-NAME(aout,find_nearest_line)
- (abfd, section, symbols, offset, filename_ptr, functionname_ptr, line_ptr)
- bfd *abfd;
- asection *section;
- asymbol **symbols;
- bfd_vma offset;
- CONST char **filename_ptr;
- CONST char **functionname_ptr;
- unsigned int *line_ptr;
+/* Provided a BFD, a section and an offset into the section, calculate
+ and return the name of the source file and the line nearest to the
+ wanted location. */
+
+bfd_boolean
+NAME (aout, find_nearest_line) (bfd *abfd,
+ asymbol **symbols,
+ asection *section,
+ bfd_vma offset,
+ const char **filename_ptr,
+ const char **functionname_ptr,
+ unsigned int *line_ptr,
+ unsigned int *disriminator_ptr)
{
- /* Run down the file looking for the filename, function and linenumber */
+ /* Run down the file looking for the filename, function and linenumber. */
asymbol **p;
- CONST char *directory_name = NULL;
- CONST char *main_file_name = NULL;
- CONST char *current_file_name = NULL;
- CONST char *line_file_name = NULL; /* Value of current_file_name at line number. */
+ const char *directory_name = NULL;
+ const char *main_file_name = NULL;
+ const char *current_file_name = NULL;
+ const char *line_file_name = NULL; /* Value of current_file_name at line number. */
+ const char *line_directory_name = NULL; /* Value of directory_name at line number. */
bfd_vma low_line_vma = 0;
bfd_vma low_func_vma = 0;
asymbol *func = 0;
- size_t filelen, funclen;
+ bfd_size_type filelen, funclen;
char *buf;
*filename_ptr = abfd->filename;
- *functionname_ptr = 0;
+ *functionname_ptr = NULL;
*line_ptr = 0;
- if (symbols != (asymbol **)NULL) {
- for (p = symbols; *p; p++) {
- aout_symbol_type *q = (aout_symbol_type *)(*p);
- next:
- switch (q->type){
- case N_SO:
- main_file_name = current_file_name = q->symbol.name;
- /* Look ahead to next symbol to check if that too is an N_SO. */
- p++;
- if (*p == NULL)
- break;
- q = (aout_symbol_type *)(*p);
- if (q->type != (int)N_SO)
- goto next;
-
- /* Found a second N_SO First is directory; second is filename. */
- directory_name = current_file_name;
- main_file_name = current_file_name = q->symbol.name;
- if (obj_textsec(abfd) != section)
- goto done;
- break;
- case N_SOL:
- current_file_name = q->symbol.name;
- break;
-
- case N_SLINE:
+ if (disriminator_ptr)
+ *disriminator_ptr = 0;
- case N_DSLINE:
- case N_BSLINE:
- /* We'll keep this if it resolves nearer than the one we have
- already. */
- if (q->symbol.value >= low_line_vma
- && q->symbol.value <= offset)
- {
- *line_ptr = q->desc;
- low_line_vma = q->symbol.value;
- line_file_name = current_file_name;
- }
- break;
- case N_FUN:
+ if (symbols != NULL)
+ {
+ for (p = symbols; *p; p++)
{
- /* We'll keep this if it is nearer than the one we have already */
- if (q->symbol.value >= low_func_vma &&
- q->symbol.value <= offset) {
- low_func_vma = q->symbol.value;
- func = (asymbol *)q;
- }
- else if (q->symbol.value > offset)
- goto done;
+ aout_symbol_type *q = (aout_symbol_type *) (*p);
+ next:
+ switch (q->type)
+ {
+ case N_TEXT:
+ /* If this looks like a file name symbol, and it comes after
+ the line number we have found so far, but before the
+ offset, then we have probably not found the right line
+ number. */
+ if (q->symbol.value <= offset
+ && ((q->symbol.value > low_line_vma
+ && (line_file_name != NULL
+ || *line_ptr != 0))
+ || (q->symbol.value > low_func_vma
+ && func != NULL)))
+ {
+ const char *symname;
+
+ symname = q->symbol.name;
+
+ if (symname != NULL
+ && strlen (symname) > 2
+ && strcmp (symname + strlen (symname) - 2, ".o") == 0)
+ {
+ if (q->symbol.value > low_line_vma)
+ {
+ *line_ptr = 0;
+ line_file_name = NULL;
+ }
+ if (q->symbol.value > low_func_vma)
+ func = NULL;
+ }
+ }
+ break;
+
+ case N_SO:
+ /* If this symbol is less than the offset, but greater than
+ the line number we have found so far, then we have not
+ found the right line number. */
+ if (q->symbol.value <= offset)
+ {
+ if (q->symbol.value > low_line_vma)
+ {
+ *line_ptr = 0;
+ line_file_name = NULL;
+ }
+ if (q->symbol.value > low_func_vma)
+ func = NULL;
+ }
+
+ main_file_name = current_file_name = q->symbol.name;
+ /* Look ahead to next symbol to check if that too is an N_SO. */
+ p++;
+ if (*p == NULL)
+ goto done;
+ q = (aout_symbol_type *) (*p);
+ if (q->type != (int)N_SO)
+ goto next;
+
+ /* Found a second N_SO First is directory; second is filename. */
+ directory_name = current_file_name;
+ main_file_name = current_file_name = q->symbol.name;
+ if (obj_textsec (abfd) != section)
+ goto done;
+ break;
+ case N_SOL:
+ current_file_name = q->symbol.name;
+ break;
+
+ case N_SLINE:
+
+ case N_DSLINE:
+ case N_BSLINE:
+ /* We'll keep this if it resolves nearer than the one we have
+ already. */
+ if (q->symbol.value >= low_line_vma
+ && q->symbol.value <= offset)
+ {
+ *line_ptr = q->desc;
+ low_line_vma = q->symbol.value;
+ line_file_name = current_file_name;
+ line_directory_name = directory_name;
+ }
+ break;
+ case N_FUN:
+ {
+ /* We'll keep this if it is nearer than the one we have already. */
+ if (q->symbol.value >= low_func_vma
+ && q->symbol.value <= offset)
+ {
+ low_func_vma = q->symbol.value;
+ func = (asymbol *)q;
+ }
+ else if (q->symbol.value > offset)
+ goto done;
+ }
+ break;
+ }
}
- break;
- }
}
- }
done:
if (*line_ptr != 0)
- main_file_name = line_file_name;
+ {
+ main_file_name = line_file_name;
+ directory_name = line_directory_name;
+ }
if (main_file_name == NULL
- || main_file_name[0] == '/'
+ || IS_ABSOLUTE_PATH (main_file_name)
|| directory_name == NULL)
filelen = 0;
else
filelen = strlen (directory_name) + strlen (main_file_name);
+
if (func == NULL)
funclen = 0;
else
if (adata (abfd).line_buf != NULL)
free (adata (abfd).line_buf);
+
if (filelen + funclen == 0)
adata (abfd).line_buf = buf = NULL;
else
{
- adata (abfd).line_buf = buf = (char *) malloc (filelen + funclen + 2);
- if (adata (abfd).line_buf == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
+ buf = (char *) bfd_malloc (filelen + funclen + 3);
+ adata (abfd).line_buf = buf;
+ if (buf == NULL)
+ return FALSE;
}
if (main_file_name != NULL)
{
- if (main_file_name[0] == '/' || directory_name == NULL)
+ if (IS_ABSOLUTE_PATH (main_file_name) || directory_name == NULL)
*filename_ptr = main_file_name;
else
{
- sprintf (buf, "%s%s", directory_name, main_file_name);
- *filename_ptr = buf;
- buf += filelen + 1;
+ if (buf == NULL)
+ /* PR binutils/20891: In a corrupt input file both
+ main_file_name and directory_name can be empty... */
+ * filename_ptr = NULL;
+ else
+ {
+ snprintf (buf, filelen + 1, "%s%s", directory_name,
+ main_file_name);
+ *filename_ptr = buf;
+ buf += filelen + 1;
+ }
}
}
if (func)
{
const char *function = func->name;
- char *p;
+ char *colon;
+ if (buf == NULL)
+ {
+ /* PR binutils/20892: In a corrupt input file func can be empty. */
+ * functionname_ptr = NULL;
+ return TRUE;
+ }
/* The caller expects a symbol name. We actually have a
function name, without the leading underscore. Put the
underscore back in, so that the caller gets a symbol name. */
buf[0] = bfd_get_symbol_leading_char (abfd);
strcpy (buf + 1, function);
}
- /* Have to remove : stuff */
- p = strchr (buf, ':');
- if (p != NULL)
- *p = '\0';
+ /* Have to remove : stuff. */
+ colon = strchr (buf, ':');
+ if (colon != NULL)
+ *colon = '\0';
*functionname_ptr = buf;
}
- return true;
+ return TRUE;
}
-/*ARGSUSED*/
int
-NAME(aout,sizeof_headers) (abfd, execable)
- bfd *abfd;
- boolean execable;
+NAME (aout, sizeof_headers) (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
- return adata(abfd).exec_bytes_size;
+ return adata (abfd).exec_bytes_size;
}
/* Free all information we have cached for this BFD. We can always
read it again later if we need it. */
-boolean
-NAME(aout,bfd_free_cached_info) (abfd)
- bfd *abfd;
+bfd_boolean
+NAME (aout, bfd_free_cached_info) (bfd *abfd)
{
asection *o;
- if (bfd_get_format (abfd) != bfd_object)
- return true;
+ if (bfd_get_format (abfd) != bfd_object
+ || abfd->tdata.aout_data == NULL)
+ return TRUE;
#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
BFCI_FREE (obj_aout_symbols (abfd));
+#ifdef USE_MMAP
+ obj_aout_external_syms (abfd) = 0;
+ bfd_free_window (&obj_aout_sym_window (abfd));
+ bfd_free_window (&obj_aout_string_window (abfd));
+ obj_aout_external_strings (abfd) = 0;
+#else
BFCI_FREE (obj_aout_external_syms (abfd));
BFCI_FREE (obj_aout_external_strings (abfd));
- for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+#endif
+ for (o = abfd->sections; o != NULL; o = o->next)
BFCI_FREE (o->relocation);
#undef BFCI_FREE
- return true;
+ return TRUE;
}
\f
/* a.out link code. */
-static boolean aout_link_add_object_symbols
- PARAMS ((bfd *, struct bfd_link_info *));
-static boolean aout_link_check_archive_element
- PARAMS ((bfd *, struct bfd_link_info *, boolean *));
-static boolean aout_link_free_symbols PARAMS ((bfd *));
-static boolean aout_link_check_ar_symbols
- PARAMS ((bfd *, struct bfd_link_info *, boolean *pneeded));
-static boolean aout_link_add_symbols
- PARAMS ((bfd *, struct bfd_link_info *));
-
/* Routine to create an entry in an a.out link hash table. */
struct bfd_hash_entry *
-NAME(aout,link_hash_newfunc) (entry, table, string)
- struct bfd_hash_entry *entry;
- struct bfd_hash_table *table;
- const char *string;
+NAME (aout, link_hash_newfunc) (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
{
struct aout_link_hash_entry *ret = (struct aout_link_hash_entry *) entry;
/* Allocate the structure if it has not already been allocated by a
subclass. */
- if (ret == (struct aout_link_hash_entry *) NULL)
- ret = ((struct aout_link_hash_entry *)
- bfd_hash_allocate (table, sizeof (struct aout_link_hash_entry)));
- if (ret == (struct aout_link_hash_entry *) NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return (struct bfd_hash_entry *) ret;
- }
+ if (ret == NULL)
+ ret = (struct aout_link_hash_entry *) bfd_hash_allocate (table,
+ sizeof (* ret));
+ if (ret == NULL)
+ return NULL;
/* Call the allocation method of the superclass. */
ret = ((struct aout_link_hash_entry *)
if (ret)
{
/* Set local fields. */
- ret->written = false;
+ ret->written = FALSE;
ret->indx = -1;
}
/* Initialize an a.out link hash table. */
-boolean
-NAME(aout,link_hash_table_init) (table, abfd, newfunc)
- struct aout_link_hash_table *table;
- bfd *abfd;
- struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
- struct bfd_hash_table *,
- const char *));
+bfd_boolean
+NAME (aout, link_hash_table_init) (struct aout_link_hash_table *table,
+ bfd *abfd,
+ struct bfd_hash_entry *(*newfunc)
+ (struct bfd_hash_entry *, struct bfd_hash_table *,
+ const char *),
+ unsigned int entsize)
{
- return _bfd_link_hash_table_init (&table->root, abfd, newfunc);
+ return _bfd_link_hash_table_init (&table->root, abfd, newfunc, entsize);
}
/* Create an a.out link hash table. */
struct bfd_link_hash_table *
-NAME(aout,link_hash_table_create) (abfd)
- bfd *abfd;
+NAME (aout, link_hash_table_create) (bfd *abfd)
{
struct aout_link_hash_table *ret;
+ bfd_size_type amt = sizeof (* ret);
- ret = ((struct aout_link_hash_table *)
- bfd_alloc (abfd, sizeof (struct aout_link_hash_table)));
+ ret = (struct aout_link_hash_table *) bfd_malloc (amt);
if (ret == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return (struct bfd_link_hash_table *) NULL;
- }
- if (! NAME(aout,link_hash_table_init) (ret, abfd,
- NAME(aout,link_hash_newfunc)))
+ return NULL;
+
+ if (!NAME (aout, link_hash_table_init) (ret, abfd,
+ NAME (aout, link_hash_newfunc),
+ sizeof (struct aout_link_hash_entry)))
{
free (ret);
- return (struct bfd_link_hash_table *) NULL;
+ return NULL;
}
return &ret->root;
}
-/* Given an a.out BFD, add symbols to the global hash table as
- appropriate. */
-
-boolean
-NAME(aout,link_add_symbols) (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- switch (bfd_get_format (abfd))
- {
- case bfd_object:
- return aout_link_add_object_symbols (abfd, info);
- case bfd_archive:
- return _bfd_generic_link_add_archive_symbols
- (abfd, info, aout_link_check_archive_element);
- default:
- bfd_set_error (bfd_error_wrong_format);
- return false;
- }
-}
-
-/* Add symbols from an a.out object file. */
-
-static boolean
-aout_link_add_object_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- if (! aout_get_external_symbols (abfd))
- return false;
- if (! aout_link_add_symbols (abfd, info))
- return false;
- if (! info->keep_memory)
- {
- if (! aout_link_free_symbols (abfd))
- return false;
- }
- return true;
-}
-
-/* Check a single archive element to see if we need to include it in
- the link. *PNEEDED is set according to whether this element is
- needed in the link or not. This is called from
- _bfd_generic_link_add_archive_symbols. */
+/* Add all symbols from an object file to the hash table. */
-static boolean
-aout_link_check_archive_element (abfd, info, pneeded)
- bfd *abfd;
- struct bfd_link_info *info;
- boolean *pneeded;
+static bfd_boolean
+aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
{
- if (! aout_get_external_symbols (abfd))
- return false;
-
- if (! aout_link_check_ar_symbols (abfd, info, pneeded))
- return false;
-
- if (*pneeded)
- {
- if (! aout_link_add_symbols (abfd, info))
- return false;
- }
-
- if (! info->keep_memory || ! *pneeded)
- {
- if (! aout_link_free_symbols (abfd))
- return false;
- }
-
- return true;
-}
+ bfd_boolean (*add_one_symbol)
+ (struct bfd_link_info *, bfd *, const char *, flagword, asection *,
+ bfd_vma, const char *, bfd_boolean, bfd_boolean,
+ struct bfd_link_hash_entry **);
+ struct external_nlist *syms;
+ bfd_size_type sym_count;
+ char *strings;
+ bfd_boolean copy;
+ struct aout_link_hash_entry **sym_hash;
+ struct external_nlist *p;
+ struct external_nlist *pend;
+ bfd_size_type amt;
-/* Free up the internal symbols read from an a.out file. */
+ syms = obj_aout_external_syms (abfd);
+ sym_count = obj_aout_external_sym_count (abfd);
+ strings = obj_aout_external_strings (abfd);
+ if (info->keep_memory)
+ copy = FALSE;
+ else
+ copy = TRUE;
-static boolean
-aout_link_free_symbols (abfd)
- bfd *abfd;
-{
- if (obj_aout_external_syms (abfd) != (struct external_nlist *) NULL)
- {
- free ((PTR) obj_aout_external_syms (abfd));
- obj_aout_external_syms (abfd) = (struct external_nlist *) NULL;
- }
- if (obj_aout_external_strings (abfd) != (char *) NULL)
+ if (aout_backend_info (abfd)->add_dynamic_symbols != NULL)
{
- free ((PTR) obj_aout_external_strings (abfd));
- obj_aout_external_strings (abfd) = (char *) NULL;
+ if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
+ (abfd, info, &syms, &sym_count, &strings)))
+ return FALSE;
}
- return true;
-}
-/* Look through the internal symbols to see if this object file should
- be included in the link. We should include this object file if it
- defines any symbols which are currently undefined. If this object
- file defines a common symbol, then we may adjust the size of the
- known symbol but we do not include the object file in the link
- (unless there is some other reason to include it). */
+ if (sym_count == 0)
+ return TRUE; /* Nothing to do. */
-static boolean
-aout_link_check_ar_symbols (abfd, info, pneeded)
- bfd *abfd;
- struct bfd_link_info *info;
- boolean *pneeded;
-{
- register struct external_nlist *p;
- struct external_nlist *pend;
- char *strings;
+ /* We keep a list of the linker hash table entries that correspond
+ to particular symbols. We could just look them up in the hash
+ table, but keeping the list is more efficient. Perhaps this
+ should be conditional on info->keep_memory. */
+ amt = sym_count * sizeof (struct aout_link_hash_entry *);
+ sym_hash = (struct aout_link_hash_entry **) bfd_alloc (abfd, amt);
+ if (sym_hash == NULL)
+ return FALSE;
+ obj_aout_sym_hashes (abfd) = sym_hash;
- *pneeded = false;
+ add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
+ if (add_one_symbol == NULL)
+ add_one_symbol = _bfd_generic_link_add_one_symbol;
- /* Look through all the symbols. */
- p = obj_aout_external_syms (abfd);
- pend = p + obj_aout_external_sym_count (abfd);
- strings = obj_aout_external_strings (abfd);
- for (; p < pend; p++)
+ p = syms;
+ pend = p + sym_count;
+ for (; p < pend; p++, sym_hash++)
{
- int type = bfd_h_get_8 (abfd, p->e_type);
+ int type;
const char *name;
- struct bfd_link_hash_entry *h;
+ bfd_vma value;
+ asection *section;
+ flagword flags;
+ const char *string;
- /* Ignore symbols that are not externally visible. This is an
- optimization only, as we check the type more thoroughly
- below. */
- if (((type & N_EXT) == 0
- || (type & N_STAB) != 0
- || type == N_FN)
- && type != N_WEAKA
- && type != N_WEAKT
- && type != N_WEAKD
- && type != N_WEAKB)
- {
- if (type == N_WARNING
- || type == N_INDR)
- ++p;
- continue;
- }
+ *sym_hash = NULL;
- name = strings + GET_WORD (abfd, p->e_strx);
- h = bfd_link_hash_lookup (info->hash, name, false, false, true);
+ type = H_GET_8 (abfd, p->e_type);
- /* We are only interested in symbols that are currently
- undefined or common. */
- if (h == (struct bfd_link_hash_entry *) NULL
- || (h->type != bfd_link_hash_undefined
- && h->type != bfd_link_hash_common))
- {
- if (type == (N_INDR | N_EXT))
- ++p;
- continue;
- }
+ /* Ignore debugging symbols. */
+ if ((type & N_STAB) != 0)
+ continue;
- if (type == (N_TEXT | N_EXT)
- || type == (N_DATA | N_EXT)
- || type == (N_BSS | N_EXT)
- || type == (N_ABS | N_EXT)
- || type == (N_INDR | N_EXT))
+ /* PR 19629: Corrupt binaries can contain illegal string offsets. */
+ if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
+ return FALSE;
+ name = strings + GET_WORD (abfd, p->e_strx);
+ value = GET_WORD (abfd, p->e_value);
+ flags = BSF_GLOBAL;
+ string = NULL;
+ switch (type)
{
- /* This object file defines this symbol. We must link it
- in. This is true regardless of whether the current
- definition of the symbol is undefined or common. If the
- current definition is common, we have a case in which we
- have already seen an object file including
- int a;
- and this object file from the archive includes
- int a = 5;
- In such a case we must include this object file.
-
- FIXME: The SunOS 4.1.3 linker will pull in the archive
- element if the symbol is defined in the .data section,
- but not if it is defined in the .text section. That
- seems a bit crazy to me, and I haven't implemented it.
- However, it might be correct. */
- if (! (*info->callbacks->add_archive_element) (info, abfd, name))
- return false;
- *pneeded = true;
- return true;
- }
+ default:
+ abort ();
- if (type == (N_UNDF | N_EXT))
- {
- bfd_vma value;
-
- value = GET_WORD (abfd, p->e_value);
- if (value != 0)
- {
- /* This symbol is common in the object from the archive
- file. */
- if (h->type == bfd_link_hash_undefined)
- {
- bfd *symbfd;
- unsigned int power;
-
- symbfd = h->u.undef.abfd;
- if (symbfd == (bfd *) NULL)
- {
- /* This symbol was created as undefined from
- outside BFD. We assume that we should link
- in the object file. This is done for the -u
- option in the linker. */
- if (! (*info->callbacks->add_archive_element) (info,
- abfd,
- name))
- return false;
- *pneeded = true;
- return true;
- }
- /* Turn the current link symbol into a common
- symbol. It is already on the undefs list. */
- h->type = bfd_link_hash_common;
- h->u.c.p = ((struct bfd_link_hash_common_entry *)
- bfd_hash_allocate (&info->hash->table,
- sizeof (struct bfd_link_hash_common_entry)));
- if (h->u.c.p == NULL)
- return false;
-
- h->u.c.size = value;
-
- /* FIXME: This isn't quite right. The maximum
- alignment of a common symbol should be set by the
- architecture of the output file, not of the input
- file. */
- power = bfd_log2 (value);
- if (power > bfd_get_arch_info (abfd)->section_align_power)
- power = bfd_get_arch_info (abfd)->section_align_power;
- h->u.c.p->alignment_power = power;
-
- h->u.c.p->section = bfd_make_section_old_way (symbfd,
- "COMMON");
- }
- else
- {
- /* Adjust the size of the common symbol if
- necessary. */
- if (value > h->u.c.size)
- h->u.c.size = value;
- }
- }
- }
-
- if (type == N_WEAKA
- || type == N_WEAKT
- || type == N_WEAKD
- || type == N_WEAKB)
- {
- /* This symbol is weak but defined. We must pull it in if
- the current link symbol is undefined, but we don't want
- it if the current link symbol is common. */
- if (h->type == bfd_link_hash_undefined)
- {
- if (! (*info->callbacks->add_archive_element) (info, abfd, name))
- return false;
- *pneeded = true;
- return true;
- }
- }
- }
-
- /* We do not need this object file. */
- return true;
-}
-
-/* Add all symbols from an object file to the hash table. */
-
-static boolean
-aout_link_add_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
-{
- boolean (*add_one_symbol) PARAMS ((struct bfd_link_info *, bfd *,
- const char *, flagword, asection *,
- bfd_vma, const char *, boolean,
- boolean,
- struct bfd_link_hash_entry **));
- struct external_nlist *syms;
- bfd_size_type sym_count;
- char *strings;
- boolean copy;
- struct aout_link_hash_entry **sym_hash;
- register struct external_nlist *p;
- struct external_nlist *pend;
-
- syms = obj_aout_external_syms (abfd);
- sym_count = obj_aout_external_sym_count (abfd);
- strings = obj_aout_external_strings (abfd);
- if (info->keep_memory)
- copy = false;
- else
- copy = true;
-
- if ((abfd->flags & DYNAMIC) != 0
- && aout_backend_info (abfd)->add_dynamic_symbols != NULL)
- {
- if (! ((*aout_backend_info (abfd)->add_dynamic_symbols)
- (abfd, info, &syms, &sym_count, &strings)))
- return false;
- }
-
- /* We keep a list of the linker hash table entries that correspond
- to particular symbols. We could just look them up in the hash
- table, but keeping the list is more efficient. Perhaps this
- should be conditional on info->keep_memory. */
- sym_hash = ((struct aout_link_hash_entry **)
- bfd_alloc (abfd,
- ((size_t) sym_count
- * sizeof (struct aout_link_hash_entry *))));
- if (sym_hash == NULL && sym_count != 0)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
- obj_aout_sym_hashes (abfd) = sym_hash;
-
- add_one_symbol = aout_backend_info (abfd)->add_one_symbol;
- if (add_one_symbol == NULL)
- add_one_symbol = _bfd_generic_link_add_one_symbol;
-
- p = syms;
- pend = p + sym_count;
- for (; p < pend; p++, sym_hash++)
- {
- int type;
- const char *name;
- bfd_vma value;
- asection *section;
- flagword flags;
- const char *string;
-
- *sym_hash = NULL;
-
- type = bfd_h_get_8 (abfd, p->e_type);
-
- /* Ignore debugging symbols. */
- if ((type & N_STAB) != 0)
- continue;
-
- name = strings + GET_WORD (abfd, p->e_strx);
- value = GET_WORD (abfd, p->e_value);
- flags = BSF_GLOBAL;
- string = NULL;
- switch (type)
- {
- default:
- abort ();
-
- case N_UNDF:
- case N_ABS:
- case N_TEXT:
- case N_DATA:
- case N_BSS:
- case N_FN_SEQ:
- case N_COMM:
- case N_SETV:
- case N_FN:
- /* Ignore symbols that are not externally visible. */
- continue;
- case N_INDR:
- /* Ignore local indirect symbol. */
- ++p;
- ++sym_hash;
- continue;
+ case N_UNDF:
+ case N_ABS:
+ case N_TEXT:
+ case N_DATA:
+ case N_BSS:
+ case N_FN_SEQ:
+ case N_COMM:
+ case N_SETV:
+ case N_FN:
+ /* Ignore symbols that are not externally visible. */
+ continue;
+ case N_INDR:
+ /* Ignore local indirect symbol. */
+ ++p;
+ ++sym_hash;
+ continue;
case N_UNDF | N_EXT:
if (value == 0)
case N_INDR | N_EXT:
/* An indirect symbol. The next symbol is the symbol
which this one really is. */
- BFD_ASSERT (p + 1 < pend);
+ /* See PR 20925 for a reproducer. */
+ if (p + 1 >= pend)
+ return FALSE;
++p;
+ /* PR 19629: Corrupt binaries can contain illegal string offsets. */
+ if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
+ return FALSE;
string = strings + GET_WORD (abfd, p->e_strx);
section = bfd_ind_section_ptr;
flags |= BSF_INDIRECT;
break;
case N_WARNING:
/* A warning symbol. The next symbol is the one to warn
- about. */
- BFD_ASSERT (p + 1 < pend);
+ about. If there is no next symbol, just look away. */
+ if (p + 1 >= pend)
+ return TRUE;
++p;
string = name;
+ /* PR 19629: Corrupt binaries can contain illegal string offsets. */
+ if (GET_WORD (abfd, p->e_strx) >= obj_aout_external_string_size (abfd))
+ return FALSE;
name = strings + GET_WORD (abfd, p->e_strx);
section = bfd_und_section_ptr;
flags |= BSF_WARNING;
}
if (! ((*add_one_symbol)
- (info, abfd, name, flags, section, value, string, copy, false,
+ (info, abfd, name, flags, section, value, string, copy, FALSE,
(struct bfd_link_hash_entry **) sym_hash)))
- return false;
+ return FALSE;
/* Restrict the maximum alignment of a common symbol based on
the architecture, since a.out has no way to represent
++sym_hash;
}
- return true;
+ return TRUE;
}
-/* During the final link step we need to pass around a bunch of
- information, so we do it in an instance of this structure. */
+/* Free up the internal symbols read from an a.out file. */
-struct aout_final_link_info
+static bfd_boolean
+aout_link_free_symbols (bfd *abfd)
{
- /* General link information. */
- struct bfd_link_info *info;
- /* Output bfd. */
- bfd *output_bfd;
- /* Reloc file positions. */
- file_ptr treloff, dreloff;
- /* File position of symbols. */
- file_ptr symoff;
- /* String table. */
- struct bfd_strtab_hash *strtab;
- /* A buffer large enough to hold the contents of any section. */
- bfd_byte *contents;
- /* A buffer large enough to hold the relocs of any section. */
- PTR relocs;
- /* A buffer large enough to hold the symbol map of any input BFD. */
- int *symbol_map;
- /* A buffer large enough to hold output symbols of any input BFD. */
- struct external_nlist *output_syms;
-};
-
-static boolean aout_link_input_bfd
- PARAMS ((struct aout_final_link_info *, bfd *input_bfd));
-static boolean aout_link_write_symbols
- PARAMS ((struct aout_final_link_info *, bfd *input_bfd));
-static boolean aout_link_write_other_symbol
- PARAMS ((struct aout_link_hash_entry *, PTR));
-static boolean aout_link_input_section
- PARAMS ((struct aout_final_link_info *, bfd *input_bfd,
- asection *input_section, file_ptr *reloff_ptr,
- bfd_size_type rel_size));
-static boolean aout_link_input_section_std
- PARAMS ((struct aout_final_link_info *, bfd *input_bfd,
- asection *input_section, struct reloc_std_external *,
- bfd_size_type rel_size, bfd_byte *contents));
-static boolean aout_link_input_section_ext
- PARAMS ((struct aout_final_link_info *, bfd *input_bfd,
- asection *input_section, struct reloc_ext_external *,
- bfd_size_type rel_size, bfd_byte *contents));
-static INLINE asection *aout_reloc_index_to_section
- PARAMS ((bfd *, int));
-static boolean aout_link_reloc_link_order
- PARAMS ((struct aout_final_link_info *, asection *,
- struct bfd_link_order *));
+ if (obj_aout_external_syms (abfd) != NULL)
+ {
+#ifdef USE_MMAP
+ bfd_free_window (&obj_aout_sym_window (abfd));
+#else
+ free ((void *) obj_aout_external_syms (abfd));
+#endif
+ obj_aout_external_syms (abfd) = NULL;
+ }
+ if (obj_aout_external_strings (abfd) != NULL)
+ {
+#ifdef USE_MMAP
+ bfd_free_window (&obj_aout_string_window (abfd));
+#else
+ free ((void *) obj_aout_external_strings (abfd));
+#endif
+ obj_aout_external_strings (abfd) = NULL;
+ }
+ return TRUE;
+}
-/* Do the final link step. This is called on the output BFD. The
- INFO structure should point to a list of BFDs linked through the
- link_next field which can be used to find each BFD which takes part
- in the output. Also, each section in ABFD should point to a list
- of bfd_link_order structures which list all the input sections for
- the output section. */
+/* Add symbols from an a.out object file. */
-boolean
-NAME(aout,final_link) (abfd, info, callback)
- bfd *abfd;
- struct bfd_link_info *info;
- void (*callback) PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *));
+static bfd_boolean
+aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
{
- struct aout_final_link_info aout_info;
- register bfd *sub;
- bfd_size_type trsize, drsize;
- size_t max_contents_size;
- size_t max_relocs_size;
- size_t max_sym_count;
- bfd_size_type text_size;
- file_ptr text_end;
- register struct bfd_link_order *p;
- asection *o;
- boolean have_link_order_relocs;
+ if (! aout_get_external_symbols (abfd))
+ return FALSE;
+ if (! aout_link_add_symbols (abfd, info))
+ return FALSE;
+ if (! info->keep_memory)
+ {
+ if (! aout_link_free_symbols (abfd))
+ return FALSE;
+ }
+ return TRUE;
+}
- if (info->shared)
- abfd->flags |= DYNAMIC;
+/* Look through the internal symbols to see if this object file should
+ be included in the link. We should include this object file if it
+ defines any symbols which are currently undefined. If this object
+ file defines a common symbol, then we may adjust the size of the
+ known symbol but we do not include the object file in the link
+ (unless there is some other reason to include it). */
- aout_info.info = info;
- aout_info.output_bfd = abfd;
- aout_info.contents = NULL;
- aout_info.relocs = NULL;
+static bfd_boolean
+aout_link_check_ar_symbols (bfd *abfd,
+ struct bfd_link_info *info,
+ bfd_boolean *pneeded,
+ bfd **subsbfd)
+{
+ struct external_nlist *p;
+ struct external_nlist *pend;
+ char *strings;
- /* Figure out the largest section size. Also, if generating
- relocateable output, count the relocs. */
- trsize = 0;
- drsize = 0;
- max_contents_size = 0;
- max_relocs_size = 0;
- max_sym_count = 0;
- for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+ *pneeded = FALSE;
+
+ /* Look through all the symbols. */
+ p = obj_aout_external_syms (abfd);
+ pend = p + obj_aout_external_sym_count (abfd);
+ strings = obj_aout_external_strings (abfd);
+ for (; p < pend; p++)
{
- size_t sz;
+ int type = H_GET_8 (abfd, p->e_type);
+ const char *name;
+ struct bfd_link_hash_entry *h;
- if (info->relocateable)
+ /* Ignore symbols that are not externally visible. This is an
+ optimization only, as we check the type more thoroughly
+ below. */
+ if (((type & N_EXT) == 0
+ || (type & N_STAB) != 0
+ || type == N_FN)
+ && type != N_WEAKA
+ && type != N_WEAKT
+ && type != N_WEAKD
+ && type != N_WEAKB)
{
- if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
- {
- trsize += exec_hdr (sub)->a_trsize;
- drsize += exec_hdr (sub)->a_drsize;
- }
- else
- {
- /* FIXME: We need to identify the .text and .data sections
- and call get_reloc_upper_bound and canonicalize_reloc to
- work out the number of relocs needed, and then multiply
- by the reloc size. */
- abort ();
- }
+ if (type == N_WARNING
+ || type == N_INDR)
+ ++p;
+ continue;
}
- if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
- {
- sz = bfd_section_size (sub, obj_textsec (sub));
- if (sz > max_contents_size)
- max_contents_size = sz;
- sz = bfd_section_size (sub, obj_datasec (sub));
- if (sz > max_contents_size)
- max_contents_size = sz;
+ name = strings + GET_WORD (abfd, p->e_strx);
+ h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
- sz = exec_hdr (sub)->a_trsize;
- if (sz > max_relocs_size)
- max_relocs_size = sz;
- sz = exec_hdr (sub)->a_drsize;
- if (sz > max_relocs_size)
- max_relocs_size = sz;
-
- sz = obj_aout_external_sym_count (sub);
- if (sz > max_sym_count)
- max_sym_count = sz;
+ /* We are only interested in symbols that are currently
+ undefined or common. */
+ if (h == NULL
+ || (h->type != bfd_link_hash_undefined
+ && h->type != bfd_link_hash_common))
+ {
+ if (type == (N_INDR | N_EXT))
+ ++p;
+ continue;
}
- }
-
- if (info->relocateable)
- {
- if (obj_textsec (abfd) != (asection *) NULL)
- trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
- ->link_order_head)
- * obj_reloc_entry_size (abfd));
- if (obj_datasec (abfd) != (asection *) NULL)
- drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
- ->link_order_head)
- * obj_reloc_entry_size (abfd));
- }
-
- exec_hdr (abfd)->a_trsize = trsize;
- exec_hdr (abfd)->a_drsize = drsize;
-
- exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
- /* Adjust the section sizes and vmas according to the magic number.
- This sets a_text, a_data and a_bss in the exec_hdr and sets the
- filepos for each section. */
- if (! NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end))
- goto error_return;
+ if (type == (N_TEXT | N_EXT)
+ || type == (N_DATA | N_EXT)
+ || type == (N_BSS | N_EXT)
+ || type == (N_ABS | N_EXT)
+ || type == (N_INDR | N_EXT))
+ {
+ /* This object file defines this symbol. We must link it
+ in. This is true regardless of whether the current
+ definition of the symbol is undefined or common.
- /* The relocation and symbol file positions differ among a.out
- targets. We are passed a callback routine from the backend
- specific code to handle this.
- FIXME: At this point we do not know how much space the symbol
- table will require. This will not work for any (nonstandard)
- a.out target that needs to know the symbol table size before it
- can compute the relocation file positions. This may or may not
- be the case for the hp300hpux target, for example. */
- (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
- &aout_info.symoff);
- obj_textsec (abfd)->rel_filepos = aout_info.treloff;
- obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
- obj_sym_filepos (abfd) = aout_info.symoff;
+ If the current definition is common, we have a case in
+ which we have already seen an object file including:
+ int a;
+ and this object file from the archive includes:
+ int a = 5;
+ In such a case, whether to include this object is target
+ dependant for backward compatibility.
- /* We keep a count of the symbols as we output them. */
- obj_aout_external_sym_count (abfd) = 0;
+ FIXME: The SunOS 4.1.3 linker will pull in the archive
+ element if the symbol is defined in the .data section,
+ but not if it is defined in the .text section. That
+ seems a bit crazy to me, and it has not been implemented
+ yet. However, it might be correct. */
+ if (h->type == bfd_link_hash_common)
+ {
+ int skip = 0;
- /* We accumulate the string table as we write out the symbols. */
- aout_info.strtab = _bfd_stringtab_init ();
- if (aout_info.strtab == NULL)
- goto error_return;
+ switch (info->common_skip_ar_symbols)
+ {
+ case bfd_link_common_skip_none:
+ break;
+ case bfd_link_common_skip_text:
+ skip = (type == (N_TEXT | N_EXT));
+ break;
+ case bfd_link_common_skip_data:
+ skip = (type == (N_DATA | N_EXT));
+ break;
+ case bfd_link_common_skip_all:
+ skip = 1;
+ break;
+ }
- /* Allocate buffers to hold section contents and relocs. */
- aout_info.contents = (bfd_byte *) malloc (max_contents_size);
- aout_info.relocs = (PTR) malloc (max_relocs_size);
- aout_info.symbol_map = (int *) malloc (max_sym_count * sizeof (int *));
- aout_info.output_syms = ((struct external_nlist *)
- malloc ((max_sym_count + 1)
- * sizeof (struct external_nlist)));
- if ((aout_info.contents == NULL && max_contents_size != 0)
- || (aout_info.relocs == NULL && max_relocs_size != 0)
- || (aout_info.symbol_map == NULL && max_sym_count != 0)
- || aout_info.output_syms == NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- goto error_return;
- }
+ if (skip)
+ continue;
+ }
- /* If we have a symbol named __DYNAMIC, force it out now. This is
- required by SunOS. Doing this here rather than in sunos.c is a
- hack, but it's easier than exporting everything which would be
- needed. */
- {
- struct aout_link_hash_entry *h;
+ if (!(*info->callbacks
+ ->add_archive_element) (info, abfd, name, subsbfd))
+ return FALSE;
+ *pneeded = TRUE;
+ return TRUE;
+ }
- h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
- false, false, false);
- if (h != NULL)
- aout_link_write_other_symbol (h, &aout_info);
- }
+ if (type == (N_UNDF | N_EXT))
+ {
+ bfd_vma value;
- /* The most time efficient way to do the link would be to read all
- the input object files into memory and then sort out the
- information into the output file. Unfortunately, that will
- probably use too much memory. Another method would be to step
- through everything that composes the text section and write it
- out, and then everything that composes the data section and write
- it out, and then write out the relocs, and then write out the
- symbols. Unfortunately, that requires reading stuff from each
- input file several times, and we will not be able to keep all the
- input files open simultaneously, and reopening them will be slow.
+ value = GET_WORD (abfd, p->e_value);
+ if (value != 0)
+ {
+ /* This symbol is common in the object from the archive
+ file. */
+ if (h->type == bfd_link_hash_undefined)
+ {
+ bfd *symbfd;
+ unsigned int power;
- What we do is basically process one input file at a time. We do
- everything we need to do with an input file once--copy over the
- section contents, handle the relocation information, and write
- out the symbols--and then we throw away the information we read
- from it. This approach requires a lot of lseeks of the output
- file, which is unfortunate but still faster than reopening a lot
- of files.
+ symbfd = h->u.undef.abfd;
+ if (symbfd == NULL)
+ {
+ /* This symbol was created as undefined from
+ outside BFD. We assume that we should link
+ in the object file. This is done for the -u
+ option in the linker. */
+ if (!(*info->callbacks
+ ->add_archive_element) (info, abfd, name, subsbfd))
+ return FALSE;
+ *pneeded = TRUE;
+ return TRUE;
+ }
+ /* Turn the current link symbol into a common
+ symbol. It is already on the undefs list. */
+ h->type = bfd_link_hash_common;
+ h->u.c.p = (struct bfd_link_hash_common_entry *)
+ bfd_hash_allocate (&info->hash->table,
+ sizeof (struct bfd_link_hash_common_entry));
+ if (h->u.c.p == NULL)
+ return FALSE;
- We use the output_has_begun field of the input BFDs to see
- whether we have already handled it. */
- for (sub = info->input_bfds; sub != (bfd *) NULL; sub = sub->link_next)
- sub->output_has_begun = false;
+ h->u.c.size = value;
- have_link_order_relocs = false;
- for (o = abfd->sections; o != (asection *) NULL; o = o->next)
- {
- for (p = o->link_order_head;
- p != (struct bfd_link_order *) NULL;
- p = p->next)
- {
- if (p->type == bfd_indirect_link_order
- && (bfd_get_flavour (p->u.indirect.section->owner)
- == bfd_target_aout_flavour))
- {
- bfd *input_bfd;
+ /* FIXME: This isn't quite right. The maximum
+ alignment of a common symbol should be set by the
+ architecture of the output file, not of the input
+ file. */
+ power = bfd_log2 (value);
+ if (power > bfd_get_arch_info (abfd)->section_align_power)
+ power = bfd_get_arch_info (abfd)->section_align_power;
+ h->u.c.p->alignment_power = power;
- input_bfd = p->u.indirect.section->owner;
- if (! input_bfd->output_has_begun)
+ h->u.c.p->section = bfd_make_section_old_way (symbfd,
+ "COMMON");
+ }
+ else
{
- if (! aout_link_input_bfd (&aout_info, input_bfd))
- goto error_return;
- input_bfd->output_has_begun = true;
+ /* Adjust the size of the common symbol if
+ necessary. */
+ if (value > h->u.c.size)
+ h->u.c.size = value;
}
}
- else if (p->type == bfd_section_reloc_link_order
- || p->type == bfd_symbol_reloc_link_order)
- {
- /* These are handled below. */
- have_link_order_relocs = true;
- }
- else
- {
- if (! _bfd_default_link_order (abfd, info, o, p))
- goto error_return;
- }
}
- }
-
- /* Write out any symbols that we have not already written out. */
- aout_link_hash_traverse (aout_hash_table (info),
- aout_link_write_other_symbol,
- (PTR) &aout_info);
- /* Now handle any relocs we were asked to create by the linker.
- These did not come from any input file. We must do these after
- we have written out all the symbols, so that we know the symbol
- indices to use. */
- if (have_link_order_relocs)
- {
- for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ if (type == N_WEAKA
+ || type == N_WEAKT
+ || type == N_WEAKD
+ || type == N_WEAKB)
{
- for (p = o->link_order_head;
- p != (struct bfd_link_order *) NULL;
- p = p->next)
+ /* This symbol is weak but defined. We must pull it in if
+ the current link symbol is undefined, but we don't want
+ it if the current link symbol is common. */
+ if (h->type == bfd_link_hash_undefined)
{
- if (p->type == bfd_section_reloc_link_order
- || p->type == bfd_symbol_reloc_link_order)
- {
- if (! aout_link_reloc_link_order (&aout_info, o, p))
- goto error_return;
- }
+ if (!(*info->callbacks
+ ->add_archive_element) (info, abfd, name, subsbfd))
+ return FALSE;
+ *pneeded = TRUE;
+ return TRUE;
}
}
}
- if (aout_info.contents != NULL)
- {
- free (aout_info.contents);
- aout_info.contents = NULL;
- }
- if (aout_info.relocs != NULL)
- {
- free (aout_info.relocs);
- aout_info.relocs = NULL;
- }
- if (aout_info.symbol_map != NULL)
- {
- free (aout_info.symbol_map);
- aout_info.symbol_map = NULL;
- }
- if (aout_info.output_syms != NULL)
+ /* We do not need this object file. */
+ return TRUE;
+}
+/* Check a single archive element to see if we need to include it in
+ the link. *PNEEDED is set according to whether this element is
+ needed in the link or not. This is called from
+ _bfd_generic_link_add_archive_symbols. */
+
+static bfd_boolean
+aout_link_check_archive_element (bfd *abfd,
+ struct bfd_link_info *info,
+ struct bfd_link_hash_entry *h ATTRIBUTE_UNUSED,
+ const char *name ATTRIBUTE_UNUSED,
+ bfd_boolean *pneeded)
+{
+ bfd *oldbfd;
+ bfd_boolean needed;
+
+ if (!aout_get_external_symbols (abfd))
+ return FALSE;
+
+ oldbfd = abfd;
+ if (!aout_link_check_ar_symbols (abfd, info, pneeded, &abfd))
+ return FALSE;
+
+ needed = *pneeded;
+ if (needed)
{
- free (aout_info.output_syms);
- aout_info.output_syms = NULL;
+ /* Potentially, the add_archive_element hook may have set a
+ substitute BFD for us. */
+ if (abfd != oldbfd)
+ {
+ if (!info->keep_memory
+ && !aout_link_free_symbols (oldbfd))
+ return FALSE;
+ if (!aout_get_external_symbols (abfd))
+ return FALSE;
+ }
+ if (!aout_link_add_symbols (abfd, info))
+ return FALSE;
}
- /* Finish up any dynamic linking we may be doing. */
- if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
+ if (!info->keep_memory || !needed)
{
- if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
- goto error_return;
+ if (!aout_link_free_symbols (abfd))
+ return FALSE;
}
- /* Update the header information. */
- abfd->symcount = obj_aout_external_sym_count (abfd);
- exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
- obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
- obj_textsec (abfd)->reloc_count =
- exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
- obj_datasec (abfd)->reloc_count =
- exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
-
- /* Write out the string table. */
- if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
- goto error_return;
- return emit_stringtab (abfd, aout_info.strtab);
-
- error_return:
- if (aout_info.contents != NULL)
- free (aout_info.contents);
- if (aout_info.relocs != NULL)
- free (aout_info.relocs);
- if (aout_info.symbol_map != NULL)
- free (aout_info.symbol_map);
- if (aout_info.output_syms != NULL)
- free (aout_info.output_syms);
- return false;
+ return TRUE;
}
-/* Link an a.out input BFD into the output file. */
+/* Given an a.out BFD, add symbols to the global hash table as
+ appropriate. */
-static boolean
-aout_link_input_bfd (finfo, input_bfd)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
+bfd_boolean
+NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
{
- bfd_size_type sym_count;
-
- BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
-
- /* If this is a dynamic object, it may need special handling. */
- if ((input_bfd->flags & DYNAMIC) != 0
- && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
+ switch (bfd_get_format (abfd))
{
- return ((*aout_backend_info (input_bfd)->link_dynamic_object)
- (finfo->info, input_bfd));
+ case bfd_object:
+ return aout_link_add_object_symbols (abfd, info);
+ case bfd_archive:
+ return _bfd_generic_link_add_archive_symbols
+ (abfd, info, aout_link_check_archive_element);
+ default:
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
}
+}
+\f
+/* A hash table used for header files with N_BINCL entries. */
- /* Get the symbols. We probably have them already, unless
- finfo->info->keep_memory is false. */
- if (! aout_get_external_symbols (input_bfd))
- return false;
+struct aout_link_includes_table
+{
+ struct bfd_hash_table root;
+};
- sym_count = obj_aout_external_sym_count (input_bfd);
+/* A linked list of totals that we have found for a particular header
+ file. */
- /* Write out the symbols and get a map of the new indices. The map
- is placed into finfo->symbol_map. */
- if (! aout_link_write_symbols (finfo, input_bfd))
- return false;
+struct aout_link_includes_totals
+{
+ struct aout_link_includes_totals *next;
+ bfd_vma total;
+};
- /* Relocate and write out the sections. These functions use the
- symbol map created by aout_link_write_symbols. */
- if (! aout_link_input_section (finfo, input_bfd,
- obj_textsec (input_bfd),
- &finfo->treloff,
- exec_hdr (input_bfd)->a_trsize)
- || ! aout_link_input_section (finfo, input_bfd,
- obj_datasec (input_bfd),
- &finfo->dreloff,
- exec_hdr (input_bfd)->a_drsize))
- return false;
+/* An entry in the header file hash table. */
- /* If we are not keeping memory, we don't need the symbols any
- longer. We still need them if we are keeping memory, because the
- strings in the hash table point into them. */
- if (! finfo->info->keep_memory)
+struct aout_link_includes_entry
+{
+ struct bfd_hash_entry root;
+ /* List of totals we have found for this file. */
+ struct aout_link_includes_totals *totals;
+};
+
+/* Look up an entry in an the header file hash table. */
+
+#define aout_link_includes_lookup(table, string, create, copy) \
+ ((struct aout_link_includes_entry *) \
+ bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
+
+/* During the final link step we need to pass around a bunch of
+ information, so we do it in an instance of this structure. */
+
+struct aout_final_link_info
+{
+ /* General link information. */
+ struct bfd_link_info *info;
+ /* Output bfd. */
+ bfd *output_bfd;
+ /* Reloc file positions. */
+ file_ptr treloff, dreloff;
+ /* File position of symbols. */
+ file_ptr symoff;
+ /* String table. */
+ struct bfd_strtab_hash *strtab;
+ /* Header file hash table. */
+ struct aout_link_includes_table includes;
+ /* A buffer large enough to hold the contents of any section. */
+ bfd_byte *contents;
+ /* A buffer large enough to hold the relocs of any section. */
+ void * relocs;
+ /* A buffer large enough to hold the symbol map of any input BFD. */
+ int *symbol_map;
+ /* A buffer large enough to hold output symbols of any input BFD. */
+ struct external_nlist *output_syms;
+};
+
+/* The function to create a new entry in the header file hash table. */
+
+static struct bfd_hash_entry *
+aout_link_includes_newfunc (struct bfd_hash_entry *entry,
+ struct bfd_hash_table *table,
+ const char *string)
+{
+ struct aout_link_includes_entry *ret =
+ (struct aout_link_includes_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ ret = (struct aout_link_includes_entry *)
+ bfd_hash_allocate (table, sizeof (* ret));
+ if (ret == NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct aout_link_includes_entry *)
+ bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+ if (ret)
{
- if (! aout_link_free_symbols (input_bfd))
- return false;
+ /* Set local fields. */
+ ret->totals = NULL;
}
- return true;
+ return (struct bfd_hash_entry *) ret;
}
-/* Adjust and write out the symbols for an a.out file. Set the new
- symbol indices into a symbol_map. */
+/* Write out a symbol that was not associated with an a.out input
+ object. */
-static boolean
-aout_link_write_symbols (finfo, input_bfd)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
+static bfd_boolean
+aout_link_write_other_symbol (struct bfd_hash_entry *bh, void *data)
{
+ struct aout_link_hash_entry *h = (struct aout_link_hash_entry *) bh;
+ struct aout_final_link_info *flaginfo = (struct aout_final_link_info *) data;
bfd *output_bfd;
- bfd_size_type sym_count;
- char *strings;
- enum bfd_link_strip strip;
- enum bfd_link_discard discard;
- struct external_nlist *outsym;
- bfd_size_type strtab_index;
- register struct external_nlist *sym;
- struct external_nlist *sym_end;
- struct aout_link_hash_entry **sym_hash;
- int *symbol_map;
- boolean pass;
- boolean skip_next;
+ int type;
+ bfd_vma val;
+ struct external_nlist outsym;
+ bfd_size_type indx;
+ bfd_size_type amt;
- output_bfd = finfo->output_bfd;
- sym_count = obj_aout_external_sym_count (input_bfd);
- strings = obj_aout_external_strings (input_bfd);
- strip = finfo->info->strip;
- discard = finfo->info->discard;
- outsym = finfo->output_syms;
+ if (h->root.type == bfd_link_hash_warning)
+ {
+ h = (struct aout_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_new)
+ return TRUE;
+ }
- /* First write out a symbol for this object file, unless we are
- discarding such symbols. */
- if (strip != strip_all
- && (strip != strip_some
- || bfd_hash_lookup (finfo->info->keep_hash, input_bfd->filename,
- false, false) != NULL)
- && discard != discard_all)
+ output_bfd = flaginfo->output_bfd;
+
+ if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
{
- bfd_h_put_8 (output_bfd, N_TEXT, outsym->e_type);
- bfd_h_put_8 (output_bfd, 0, outsym->e_other);
- bfd_h_put_16 (output_bfd, (bfd_vma) 0, outsym->e_desc);
- strtab_index = add_to_stringtab (output_bfd, finfo->strtab,
- input_bfd->filename, false);
- if (strtab_index == (bfd_size_type) -1)
- return false;
- PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
- PUT_WORD (output_bfd,
- (bfd_get_section_vma (output_bfd,
- obj_textsec (input_bfd)->output_section)
- + obj_textsec (input_bfd)->output_offset),
- outsym->e_value);
- ++obj_aout_external_sym_count (output_bfd);
- ++outsym;
+ if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
+ (output_bfd, flaginfo->info, h)))
+ {
+ /* FIXME: No way to handle errors. */
+ abort ();
+ }
}
- pass = false;
- skip_next = false;
- sym = obj_aout_external_syms (input_bfd);
- sym_end = sym + sym_count;
- sym_hash = obj_aout_sym_hashes (input_bfd);
- symbol_map = finfo->symbol_map;
- for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
+ if (h->written)
+ return TRUE;
+
+ h->written = TRUE;
+
+ /* An indx of -2 means the symbol must be written. */
+ if (h->indx != -2
+ && (flaginfo->info->strip == strip_all
+ || (flaginfo->info->strip == strip_some
+ && bfd_hash_lookup (flaginfo->info->keep_hash, h->root.root.string,
+ FALSE, FALSE) == NULL)))
+ return TRUE;
+
+ switch (h->root.type)
{
- const char *name;
- int type;
- struct aout_link_hash_entry *h;
- boolean skip;
- asection *symsec;
- bfd_vma val = 0;
- boolean copy;
+ default:
+ case bfd_link_hash_warning:
+ abort ();
+ /* Avoid variable not initialized warnings. */
+ return TRUE;
+ case bfd_link_hash_new:
+ /* This can happen for set symbols when sets are not being
+ built. */
+ return TRUE;
+ case bfd_link_hash_undefined:
+ type = N_UNDF | N_EXT;
+ val = 0;
+ break;
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ {
+ asection *sec;
- *symbol_map = -1;
+ sec = h->root.u.def.section->output_section;
+ BFD_ASSERT (bfd_is_abs_section (sec)
+ || sec->owner == output_bfd);
+ if (sec == obj_textsec (output_bfd))
+ type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
+ else if (sec == obj_datasec (output_bfd))
+ type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
+ else if (sec == obj_bsssec (output_bfd))
+ type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
+ else
+ type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
+ type |= N_EXT;
+ val = (h->root.u.def.value
+ + sec->vma
+ + h->root.u.def.section->output_offset);
+ }
+ break;
+ case bfd_link_hash_common:
+ type = N_UNDF | N_EXT;
+ val = h->root.u.c.size;
+ break;
+ case bfd_link_hash_undefweak:
+ type = N_WEAKU;
+ val = 0;
+ break;
+ case bfd_link_hash_indirect:
+ /* We ignore these symbols, since the indirected symbol is
+ already in the hash table. */
+ return TRUE;
+ }
- type = bfd_h_get_8 (input_bfd, sym->e_type);
- name = strings + GET_WORD (input_bfd, sym->e_strx);
+ H_PUT_8 (output_bfd, type, outsym.e_type);
+ H_PUT_8 (output_bfd, 0, outsym.e_other);
+ H_PUT_16 (output_bfd, 0, outsym.e_desc);
+ indx = add_to_stringtab (output_bfd, flaginfo->strtab, h->root.root.string,
+ FALSE);
+ if (indx == - (bfd_size_type) 1)
+ /* FIXME: No way to handle errors. */
+ abort ();
- h = NULL;
+ PUT_WORD (output_bfd, indx, outsym.e_strx);
+ PUT_WORD (output_bfd, val, outsym.e_value);
- if (pass)
+ amt = EXTERNAL_NLIST_SIZE;
+ if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0
+ || bfd_bwrite ((void *) &outsym, amt, output_bfd) != amt)
+ /* FIXME: No way to handle errors. */
+ abort ();
+
+ flaginfo->symoff += EXTERNAL_NLIST_SIZE;
+ h->indx = obj_aout_external_sym_count (output_bfd);
+ ++obj_aout_external_sym_count (output_bfd);
+
+ return TRUE;
+}
+
+/* Handle a link order which is supposed to generate a reloc. */
+
+static bfd_boolean
+aout_link_reloc_link_order (struct aout_final_link_info *flaginfo,
+ asection *o,
+ struct bfd_link_order *p)
+{
+ struct bfd_link_order_reloc *pr;
+ int r_index;
+ int r_extern;
+ reloc_howto_type *howto;
+ file_ptr *reloff_ptr = NULL;
+ struct reloc_std_external srel;
+ struct reloc_ext_external erel;
+ void * rel_ptr;
+ bfd_size_type amt;
+
+ pr = p->u.reloc.p;
+
+ if (p->type == bfd_section_reloc_link_order)
+ {
+ r_extern = 0;
+ if (bfd_is_abs_section (pr->u.section))
+ r_index = N_ABS | N_EXT;
+ else
{
- /* Pass this symbol through. It is the target of an
- indirect or warning symbol. */
- val = GET_WORD (input_bfd, sym->e_value);
- pass = false;
+ BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
+ r_index = pr->u.section->target_index;
}
- else if (skip_next)
+ }
+ else
+ {
+ struct aout_link_hash_entry *h;
+
+ BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
+ r_extern = 1;
+ h = ((struct aout_link_hash_entry *)
+ bfd_wrapped_link_hash_lookup (flaginfo->output_bfd, flaginfo->info,
+ pr->u.name, FALSE, FALSE, TRUE));
+ if (h != NULL
+ && h->indx >= 0)
+ r_index = h->indx;
+ else if (h != NULL)
{
- /* Skip this symbol, which is the target of an indirect
- symbol that we have changed to no longer be an indirect
+ /* We decided to strip this symbol, but it turns out that we
+ can't. Note that we lose the other and desc information
+ here. I don't think that will ever matter for a global
symbol. */
- skip_next = false;
- continue;
+ h->indx = -2;
+ h->written = FALSE;
+ if (!aout_link_write_other_symbol (&h->root.root, flaginfo))
+ return FALSE;
+ r_index = h->indx;
}
else
{
- struct aout_link_hash_entry *hresolve;
+ (*flaginfo->info->callbacks->unattached_reloc)
+ (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
+ r_index = 0;
+ }
+ }
- /* We have saved the hash table entry for this symbol, if
- there is one. Note that we could just look it up again
- in the hash table, provided we first check that it is an
- external symbol. */
- h = *sym_hash;
+ howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
+ if (howto == 0)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
- /* If this is an indirect or warning symbol, then change
- hresolve to the base symbol. We also change *sym_hash so
- that the relocation routines relocate against the real
- symbol. */
- hresolve = h;
- if (h != (struct aout_link_hash_entry *) NULL
- && (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning))
- {
- hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
- while (hresolve->root.type == bfd_link_hash_indirect
- || hresolve->root.type == bfd_link_hash_warning)
- hresolve = ((struct aout_link_hash_entry *)
- hresolve->root.u.i.link);
- *sym_hash = hresolve;
- }
+ if (o == obj_textsec (flaginfo->output_bfd))
+ reloff_ptr = &flaginfo->treloff;
+ else if (o == obj_datasec (flaginfo->output_bfd))
+ reloff_ptr = &flaginfo->dreloff;
+ else
+ abort ();
- /* If the symbol has already been written out, skip it. */
- if (h != (struct aout_link_hash_entry *) NULL
- && h->root.type != bfd_link_hash_warning
- && h->written)
- {
- if ((type & N_TYPE) == N_INDR
- || type == N_WARNING)
- skip_next = true;
- *symbol_map = h->indx;
- continue;
- }
+ if (obj_reloc_entry_size (flaginfo->output_bfd) == RELOC_STD_SIZE)
+ {
+#ifdef MY_put_reloc
+ MY_put_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset, howto,
+ &srel);
+#else
+ {
+ int r_pcrel;
+ int r_baserel;
+ int r_jmptable;
+ int r_relative;
+ int r_length;
- /* See if we are stripping this symbol. */
- skip = false;
- switch (strip)
+ r_pcrel = (int) howto->pc_relative;
+ r_baserel = (howto->type & 8) != 0;
+ r_jmptable = (howto->type & 16) != 0;
+ r_relative = (howto->type & 32) != 0;
+ r_length = howto->size;
+
+ PUT_WORD (flaginfo->output_bfd, p->offset, srel.r_address);
+ if (bfd_header_big_endian (flaginfo->output_bfd))
+ {
+ srel.r_index[0] = r_index >> 16;
+ srel.r_index[1] = r_index >> 8;
+ srel.r_index[2] = r_index;
+ srel.r_type[0] =
+ ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
+ | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
+ | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
+ | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
+ | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
+ | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
+ }
+ else
+ {
+ srel.r_index[2] = r_index >> 16;
+ srel.r_index[1] = r_index >> 8;
+ srel.r_index[0] = r_index;
+ srel.r_type[0] =
+ ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
+ | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
+ | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
+ | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
+ | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
+ | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
+ }
+ }
+#endif
+ rel_ptr = (void *) &srel;
+
+ /* We have to write the addend into the object file, since
+ standard a.out relocs are in place. It would be more
+ reliable if we had the current contents of the file here,
+ rather than assuming zeroes, but we can't read the file since
+ it was opened using bfd_openw. */
+ if (pr->addend != 0)
+ {
+ bfd_size_type size;
+ bfd_reloc_status_type r;
+ bfd_byte *buf;
+ bfd_boolean ok;
+
+ size = bfd_get_reloc_size (howto);
+ buf = (bfd_byte *) bfd_zmalloc (size);
+ if (buf == NULL && size != 0)
+ return FALSE;
+ r = MY_relocate_contents (howto, flaginfo->output_bfd,
+ (bfd_vma) pr->addend, buf);
+ switch (r)
{
- case strip_none:
- break;
- case strip_debugger:
- if ((type & N_STAB) != 0)
- skip = true;
- break;
- case strip_some:
- if (bfd_hash_lookup (finfo->info->keep_hash, name, false, false)
- == NULL)
- skip = true;
+ case bfd_reloc_ok:
break;
- case strip_all:
- skip = true;
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ case bfd_reloc_overflow:
+ (*flaginfo->info->callbacks->reloc_overflow)
+ (flaginfo->info, NULL,
+ (p->type == bfd_section_reloc_link_order
+ ? bfd_section_name (flaginfo->output_bfd,
+ pr->u.section)
+ : pr->u.name),
+ howto->name, pr->addend, NULL, NULL, (bfd_vma) 0);
break;
}
- if (skip)
+ ok = bfd_set_section_contents (flaginfo->output_bfd, o, (void *) buf,
+ (file_ptr) p->offset, size);
+ free (buf);
+ if (! ok)
+ return FALSE;
+ }
+ }
+ else
+ {
+#ifdef MY_put_ext_reloc
+ MY_put_ext_reloc (flaginfo->output_bfd, r_extern, r_index, p->offset,
+ howto, &erel, pr->addend);
+#else
+ PUT_WORD (flaginfo->output_bfd, p->offset, erel.r_address);
+
+ if (bfd_header_big_endian (flaginfo->output_bfd))
+ {
+ erel.r_index[0] = r_index >> 16;
+ erel.r_index[1] = r_index >> 8;
+ erel.r_index[2] = r_index;
+ erel.r_type[0] =
+ ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
+ | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
+ }
+ else
+ {
+ erel.r_index[2] = r_index >> 16;
+ erel.r_index[1] = r_index >> 8;
+ erel.r_index[0] = r_index;
+ erel.r_type[0] =
+ (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
+ | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
+ }
+
+ PUT_WORD (flaginfo->output_bfd, (bfd_vma) pr->addend, erel.r_addend);
+#endif /* MY_put_ext_reloc */
+
+ rel_ptr = (void *) &erel;
+ }
+
+ amt = obj_reloc_entry_size (flaginfo->output_bfd);
+ if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
+ || bfd_bwrite (rel_ptr, amt, flaginfo->output_bfd) != amt)
+ return FALSE;
+
+ *reloff_ptr += obj_reloc_entry_size (flaginfo->output_bfd);
+
+ /* Assert that the relocs have not run into the symbols, and that n
+ the text relocs have not run into the data relocs. */
+ BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
+ && (reloff_ptr != &flaginfo->treloff
+ || (*reloff_ptr
+ <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
+
+ return TRUE;
+}
+
+/* Get the section corresponding to a reloc index. */
+
+static INLINE asection *
+aout_reloc_index_to_section (bfd *abfd, int indx)
+{
+ switch (indx & N_TYPE)
+ {
+ case N_TEXT: return obj_textsec (abfd);
+ case N_DATA: return obj_datasec (abfd);
+ case N_BSS: return obj_bsssec (abfd);
+ case N_ABS:
+ case N_UNDF: return bfd_abs_section_ptr;
+ default: abort ();
+ }
+ return NULL;
+}
+
+/* Relocate an a.out section using standard a.out relocs. */
+
+static bfd_boolean
+aout_link_input_section_std (struct aout_final_link_info *flaginfo,
+ bfd *input_bfd,
+ asection *input_section,
+ struct reloc_std_external *relocs,
+ bfd_size_type rel_size,
+ bfd_byte *contents)
+{
+ bfd_boolean (*check_dynamic_reloc)
+ (struct bfd_link_info *, bfd *, asection *,
+ struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
+ bfd_vma *);
+ bfd *output_bfd;
+ bfd_boolean relocatable;
+ struct external_nlist *syms;
+ char *strings;
+ struct aout_link_hash_entry **sym_hashes;
+ int *symbol_map;
+ bfd_size_type reloc_count;
+ struct reloc_std_external *rel;
+ struct reloc_std_external *rel_end;
+
+ output_bfd = flaginfo->output_bfd;
+ check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
+
+ BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
+ BFD_ASSERT (input_bfd->xvec->header_byteorder
+ == output_bfd->xvec->header_byteorder);
+
+ relocatable = bfd_link_relocatable (flaginfo->info);
+ syms = obj_aout_external_syms (input_bfd);
+ strings = obj_aout_external_strings (input_bfd);
+ sym_hashes = obj_aout_sym_hashes (input_bfd);
+ symbol_map = flaginfo->symbol_map;
+
+ reloc_count = rel_size / RELOC_STD_SIZE;
+ rel = relocs;
+ rel_end = rel + reloc_count;
+ for (; rel < rel_end; rel++)
+ {
+ bfd_vma r_addr;
+ int r_index;
+ int r_extern;
+ int r_pcrel;
+ int r_baserel = 0;
+ reloc_howto_type *howto;
+ struct aout_link_hash_entry *h = NULL;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+
+ r_addr = GET_SWORD (input_bfd, rel->r_address);
+
+#ifdef MY_reloc_howto
+ howto = MY_reloc_howto (input_bfd, rel, r_index, r_extern, r_pcrel);
+#else
+ {
+ int r_jmptable;
+ int r_relative;
+ int r_length;
+ unsigned int howto_idx;
+
+ if (bfd_header_big_endian (input_bfd))
+ {
+ r_index = (((unsigned int) rel->r_index[0] << 16)
+ | ((unsigned int) rel->r_index[1] << 8)
+ | rel->r_index[2]);
+ r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
+ r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
+ r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
+ r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
+ r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
+ r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
+ >> RELOC_STD_BITS_LENGTH_SH_BIG);
+ }
+ else
+ {
+ r_index = (((unsigned int) rel->r_index[2] << 16)
+ | ((unsigned int) rel->r_index[1] << 8)
+ | rel->r_index[0]);
+ r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
+ r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
+ r_baserel = (0 != (rel->r_type[0]
+ & RELOC_STD_BITS_BASEREL_LITTLE));
+ r_jmptable= (0 != (rel->r_type[0]
+ & RELOC_STD_BITS_JMPTABLE_LITTLE));
+ r_relative= (0 != (rel->r_type[0]
+ & RELOC_STD_BITS_RELATIVE_LITTLE));
+ r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
+ >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
+ }
+
+ howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
+ + 16 * r_jmptable + 32 * r_relative);
+ if (howto_idx < TABLE_SIZE (howto_table_std))
+ howto = howto_table_std + howto_idx;
+ else
+ howto = NULL;
+ }
+#endif
+
+ if (howto == NULL)
+ {
+ _bfd_error_handler (_("%pB: unsupported relocation type"),
+ input_bfd);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
+ if (relocatable)
+ {
+ /* We are generating a relocatable output file, and must
+ modify the reloc accordingly. */
+ if (r_extern)
{
- if (h != (struct aout_link_hash_entry *) NULL)
- h->written = true;
- continue;
- }
+ /* If we know the symbol this relocation is against,
+ convert it into a relocation against a section. This
+ is what the native linker does. */
+ h = sym_hashes[r_index];
+ if (h != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
+ {
+ asection *output_section;
- /* Get the value of the symbol. */
- if ((type & N_TYPE) == N_TEXT
- || type == N_WEAKT)
- symsec = obj_textsec (input_bfd);
- else if ((type & N_TYPE) == N_DATA
- || type == N_WEAKD)
- symsec = obj_datasec (input_bfd);
- else if ((type & N_TYPE) == N_BSS
- || type == N_WEAKB)
- symsec = obj_bsssec (input_bfd);
- else if ((type & N_TYPE) == N_ABS
- || type == N_WEAKA)
- symsec = bfd_abs_section_ptr;
- else if (((type & N_TYPE) == N_INDR
- && (hresolve == (struct aout_link_hash_entry *) NULL
- || (hresolve->root.type != bfd_link_hash_defined
- && hresolve->root.type != bfd_link_hash_defweak
- && hresolve->root.type != bfd_link_hash_common)))
- || type == N_WARNING)
+ /* Change the r_extern value. */
+ if (bfd_header_big_endian (output_bfd))
+ rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
+ else
+ rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
+
+ /* Compute a new r_index. */
+ output_section = h->root.u.def.section->output_section;
+ if (output_section == obj_textsec (output_bfd))
+ r_index = N_TEXT;
+ else if (output_section == obj_datasec (output_bfd))
+ r_index = N_DATA;
+ else if (output_section == obj_bsssec (output_bfd))
+ r_index = N_BSS;
+ else
+ r_index = N_ABS;
+
+ /* Add the symbol value and the section VMA to the
+ addend stored in the contents. */
+ relocation = (h->root.u.def.value
+ + output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+ else
+ {
+ /* We must change r_index according to the symbol
+ map. */
+ r_index = symbol_map[r_index];
+
+ if (r_index == -1)
+ {
+ if (h != NULL)
+ {
+ /* We decided to strip this symbol, but it
+ turns out that we can't. Note that we
+ lose the other and desc information here.
+ I don't think that will ever matter for a
+ global symbol. */
+ if (h->indx < 0)
+ {
+ h->indx = -2;
+ h->written = FALSE;
+ if (!aout_link_write_other_symbol (&h->root.root,
+ flaginfo))
+ return FALSE;
+ }
+ r_index = h->indx;
+ }
+ else
+ {
+ const char *name;
+
+ name = strings + GET_WORD (input_bfd,
+ syms[r_index].e_strx);
+ (*flaginfo->info->callbacks->unattached_reloc)
+ (flaginfo->info, name,
+ input_bfd, input_section, r_addr);
+ r_index = 0;
+ }
+ }
+
+ relocation = 0;
+ }
+
+ /* Write out the new r_index value. */
+ if (bfd_header_big_endian (output_bfd))
+ {
+ rel->r_index[0] = r_index >> 16;
+ rel->r_index[1] = r_index >> 8;
+ rel->r_index[2] = r_index;
+ }
+ else
+ {
+ rel->r_index[2] = r_index >> 16;
+ rel->r_index[1] = r_index >> 8;
+ rel->r_index[0] = r_index;
+ }
+ }
+ else
{
- /* Pass the next symbol through unchanged. The
- condition above for indirect symbols is so that if
- the indirect symbol was defined, we output it with
- the correct definition so the debugger will
- understand it. */
- pass = true;
- val = GET_WORD (input_bfd, sym->e_value);
- symsec = NULL;
+ asection *section;
+
+ /* This is a relocation against a section. We must
+ adjust by the amount that the section moved. */
+ section = aout_reloc_index_to_section (input_bfd, r_index);
+ relocation = (section->output_section->vma
+ + section->output_offset
+ - section->vma);
}
- else if ((type & N_STAB) != 0)
+
+ /* Change the address of the relocation. */
+ PUT_WORD (output_bfd,
+ r_addr + input_section->output_offset,
+ rel->r_address);
+
+ /* Adjust a PC relative relocation by removing the reference
+ to the original address in the section and including the
+ reference to the new address. */
+ if (r_pcrel)
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ - input_section->vma);
+
+#ifdef MY_relocatable_reloc
+ MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
+#endif
+
+ if (relocation == 0)
+ r = bfd_reloc_ok;
+ else
+ r = MY_relocate_contents (howto,
+ input_bfd, relocation,
+ contents + r_addr);
+ }
+ else
+ {
+ bfd_boolean hundef;
+
+ /* We are generating an executable, and must do a full
+ relocation. */
+ hundef = FALSE;
+
+ if (r_extern)
{
- val = GET_WORD (input_bfd, sym->e_value);
- symsec = NULL;
+ h = sym_hashes[r_index];
+
+ if (h != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
+ {
+ relocation = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ }
+ else if (h != NULL
+ && h->root.type == bfd_link_hash_undefweak)
+ relocation = 0;
+ else
+ {
+ hundef = TRUE;
+ relocation = 0;
+ }
}
else
{
- /* If we get here with an indirect symbol, it means that
- we are outputting it with a real definition. In such
- a case we do not want to output the next symbol,
- which is the target of the indirection. */
- if ((type & N_TYPE) == N_INDR)
- skip_next = true;
+ asection *section;
+
+ section = aout_reloc_index_to_section (input_bfd, r_index);
+ relocation = (section->output_section->vma
+ + section->output_offset
+ - section->vma);
+ if (r_pcrel)
+ relocation += input_section->vma;
+ }
+
+ if (check_dynamic_reloc != NULL)
+ {
+ bfd_boolean skip;
+
+ if (! ((*check_dynamic_reloc)
+ (flaginfo->info, input_bfd, input_section, h,
+ (void *) rel, contents, &skip, &relocation)))
+ return FALSE;
+ if (skip)
+ continue;
+ }
+
+ /* Now warn if a global symbol is undefined. We could not
+ do this earlier, because check_dynamic_reloc might want
+ to skip this reloc. */
+ if (hundef && ! bfd_link_pic (flaginfo->info) && ! r_baserel)
+ {
+ const char *name;
+
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
+ (*flaginfo->info->callbacks->undefined_symbol)
+ (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
+ }
+
+ r = MY_final_link_relocate (howto,
+ input_bfd, input_section,
+ contents, r_addr, relocation,
+ (bfd_vma) 0);
+ }
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ case bfd_reloc_overflow:
+ {
+ const char *name;
+
+ if (h != NULL)
+ name = NULL;
+ else if (r_extern)
+ name = strings + GET_WORD (input_bfd,
+ syms[r_index].e_strx);
+ else
+ {
+ asection *s;
+
+ s = aout_reloc_index_to_section (input_bfd, r_index);
+ name = bfd_section_name (input_bfd, s);
+ }
+ (*flaginfo->info->callbacks->reloc_overflow)
+ (flaginfo->info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, r_addr);
+ }
+ break;
+ }
+ }
+ }
+
+ return TRUE;
+}
+
+/* Relocate an a.out section using extended a.out relocs. */
+
+static bfd_boolean
+aout_link_input_section_ext (struct aout_final_link_info *flaginfo,
+ bfd *input_bfd,
+ asection *input_section,
+ struct reloc_ext_external *relocs,
+ bfd_size_type rel_size,
+ bfd_byte *contents)
+{
+ bfd_boolean (*check_dynamic_reloc)
+ (struct bfd_link_info *, bfd *, asection *,
+ struct aout_link_hash_entry *, void *, bfd_byte *, bfd_boolean *,
+ bfd_vma *);
+ bfd *output_bfd;
+ bfd_boolean relocatable;
+ struct external_nlist *syms;
+ char *strings;
+ struct aout_link_hash_entry **sym_hashes;
+ int *symbol_map;
+ bfd_size_type reloc_count;
+ struct reloc_ext_external *rel;
+ struct reloc_ext_external *rel_end;
+
+ output_bfd = flaginfo->output_bfd;
+ check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
+
+ BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
+ BFD_ASSERT (input_bfd->xvec->header_byteorder
+ == output_bfd->xvec->header_byteorder);
+
+ relocatable = bfd_link_relocatable (flaginfo->info);
+ syms = obj_aout_external_syms (input_bfd);
+ strings = obj_aout_external_strings (input_bfd);
+ sym_hashes = obj_aout_sym_hashes (input_bfd);
+ symbol_map = flaginfo->symbol_map;
+
+ reloc_count = rel_size / RELOC_EXT_SIZE;
+ rel = relocs;
+ rel_end = rel + reloc_count;
+ for (; rel < rel_end; rel++)
+ {
+ bfd_vma r_addr;
+ int r_index;
+ int r_extern;
+ unsigned int r_type;
+ bfd_vma r_addend;
+ struct aout_link_hash_entry *h = NULL;
+ asection *r_section = NULL;
+ bfd_vma relocation;
+
+ r_addr = GET_SWORD (input_bfd, rel->r_address);
+
+ if (bfd_header_big_endian (input_bfd))
+ {
+ r_index = (((unsigned int) rel->r_index[0] << 16)
+ | ((unsigned int) rel->r_index[1] << 8)
+ | rel->r_index[2]);
+ r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
+ r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
+ >> RELOC_EXT_BITS_TYPE_SH_BIG);
+ }
+ else
+ {
+ r_index = (((unsigned int) rel->r_index[2] << 16)
+ | ((unsigned int) rel->r_index[1] << 8)
+ | rel->r_index[0]);
+ r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
+ r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
+ >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
+ }
- symsec = NULL;
+ r_addend = GET_SWORD (input_bfd, rel->r_addend);
- /* We need to get the value from the hash table. We use
- hresolve so that if we have defined an indirect
- symbol we output the final definition. */
- if (h == (struct aout_link_hash_entry *) NULL)
- {
- switch (type & N_TYPE)
- {
- case N_SETT:
- symsec = obj_textsec (input_bfd);
- break;
- case N_SETD:
- symsec = obj_datasec (input_bfd);
- break;
- case N_SETB:
- symsec = obj_bsssec (input_bfd);
- break;
- case N_SETA:
- symsec = bfd_abs_section_ptr;
- break;
- default:
- val = 0;
- break;
- }
- }
- else if (hresolve->root.type == bfd_link_hash_defined
- || hresolve->root.type == bfd_link_hash_defweak)
+ if (r_type >= TABLE_SIZE (howto_table_ext))
+ {
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ input_bfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
+ if (relocatable)
+ {
+ /* We are generating a relocatable output file, and must
+ modify the reloc accordingly. */
+ if (r_extern
+ || r_type == (unsigned int) RELOC_BASE10
+ || r_type == (unsigned int) RELOC_BASE13
+ || r_type == (unsigned int) RELOC_BASE22)
+ {
+ /* If we know the symbol this relocation is against,
+ convert it into a relocation against a section. This
+ is what the native linker does. */
+ if (r_type == (unsigned int) RELOC_BASE10
+ || r_type == (unsigned int) RELOC_BASE13
+ || r_type == (unsigned int) RELOC_BASE22)
+ h = NULL;
+ else
+ h = sym_hashes[r_index];
+ if (h != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
{
- asection *input_section;
asection *output_section;
- /* This case usually means a common symbol which was
- turned into a defined symbol. */
- input_section = hresolve->root.u.def.section;
- output_section = input_section->output_section;
- BFD_ASSERT (bfd_is_abs_section (output_section)
- || output_section->owner == output_bfd);
- val = (hresolve->root.u.def.value
- + bfd_get_section_vma (output_bfd, output_section)
- + input_section->output_offset);
-
- /* Get the correct type based on the section. If
- this is a constructed set, force it to be
- globally visible. */
- if (type == N_SETT
- || type == N_SETD
- || type == N_SETB
- || type == N_SETA)
- type |= N_EXT;
-
- type &=~ N_TYPE;
+ /* Change the r_extern value. */
+ if (bfd_header_big_endian (output_bfd))
+ rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
+ else
+ rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
+ /* Compute a new r_index. */
+ output_section = h->root.u.def.section->output_section;
if (output_section == obj_textsec (output_bfd))
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_TEXT
- : N_WEAKT);
+ r_index = N_TEXT;
else if (output_section == obj_datasec (output_bfd))
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_DATA
- : N_WEAKD);
+ r_index = N_DATA;
else if (output_section == obj_bsssec (output_bfd))
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_BSS
- : N_WEAKB);
+ r_index = N_BSS;
else
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_ABS
- : N_WEAKA);
+ r_index = N_ABS;
+
+ /* Add the symbol value and the section VMA to the
+ addend. */
+ relocation = (h->root.u.def.value
+ + output_section->vma
+ + h->root.u.def.section->output_offset);
+
+ /* Now RELOCATION is the VMA of the final
+ destination. If this is a PC relative reloc,
+ then ADDEND is the negative of the source VMA.
+ We want to set ADDEND to the difference between
+ the destination VMA and the source VMA, which
+ means we must adjust RELOCATION by the change in
+ the source VMA. This is done below. */
}
- else if (hresolve->root.type == bfd_link_hash_common)
- val = hresolve->root.u.c.size;
- else if (hresolve->root.type == bfd_link_hash_undefweak)
+ else
{
- val = 0;
- type = N_WEAKU;
+ /* We must change r_index according to the symbol
+ map. */
+ r_index = symbol_map[r_index];
+
+ if (r_index == -1)
+ {
+ if (h != NULL)
+ {
+ /* We decided to strip this symbol, but it
+ turns out that we can't. Note that we
+ lose the other and desc information here.
+ I don't think that will ever matter for a
+ global symbol. */
+ if (h->indx < 0)
+ {
+ h->indx = -2;
+ h->written = FALSE;
+ if (!aout_link_write_other_symbol (&h->root.root,
+ flaginfo))
+ return FALSE;
+ }
+ r_index = h->indx;
+ }
+ else
+ {
+ const char *name;
+
+ name = strings + GET_WORD (input_bfd,
+ syms[r_index].e_strx);
+ (*flaginfo->info->callbacks->unattached_reloc)
+ (flaginfo->info, name,
+ input_bfd, input_section, r_addr);
+ r_index = 0;
+ }
+ }
+
+ relocation = 0;
+
+ /* If this is a PC relative reloc, then the addend
+ is the negative of the source VMA. We must
+ adjust it by the change in the source VMA. This
+ is done below. */
+ }
+
+ /* Write out the new r_index value. */
+ if (bfd_header_big_endian (output_bfd))
+ {
+ rel->r_index[0] = r_index >> 16;
+ rel->r_index[1] = r_index >> 8;
+ rel->r_index[2] = r_index;
}
else
- val = 0;
+ {
+ rel->r_index[2] = r_index >> 16;
+ rel->r_index[1] = r_index >> 8;
+ rel->r_index[0] = r_index;
+ }
}
- if (symsec != (asection *) NULL)
- val = (symsec->output_section->vma
- + symsec->output_offset
- + (GET_WORD (input_bfd, sym->e_value)
- - symsec->vma));
-
- /* If this is a global symbol set the written flag, and if
- it is a local symbol see if we should discard it. */
- if (h != (struct aout_link_hash_entry *) NULL)
+ else
{
- h->written = true;
- h->indx = obj_aout_external_sym_count (output_bfd);
+ /* This is a relocation against a section. We must
+ adjust by the amount that the section moved. */
+ r_section = aout_reloc_index_to_section (input_bfd, r_index);
+ relocation = (r_section->output_section->vma
+ + r_section->output_offset
+ - r_section->vma);
+
+ /* If this is a PC relative reloc, then the addend is
+ the difference in VMA between the destination and the
+ source. We have just adjusted for the change in VMA
+ of the destination, so we must also adjust by the
+ change in VMA of the source. This is done below. */
}
- else if ((type & N_TYPE) != N_SETT
- && (type & N_TYPE) != N_SETD
- && (type & N_TYPE) != N_SETB
- && (type & N_TYPE) != N_SETA)
+
+ /* As described above, we must always adjust a PC relative
+ reloc by the change in VMA of the source. However, if
+ pcrel_offset is set, then the addend does not include the
+ location within the section, in which case we don't need
+ to adjust anything. */
+ if (howto_table_ext[r_type].pc_relative
+ && ! howto_table_ext[r_type].pcrel_offset)
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset
+ - input_section->vma);
+
+ /* Change the addend if necessary. */
+ if (relocation != 0)
+ PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
+
+ /* Change the address of the relocation. */
+ PUT_WORD (output_bfd,
+ r_addr + input_section->output_offset,
+ rel->r_address);
+ }
+ else
+ {
+ bfd_boolean hundef;
+ bfd_reloc_status_type r;
+
+ /* We are generating an executable, and must do a full
+ relocation. */
+ hundef = FALSE;
+
+ if (r_extern)
{
- switch (discard)
+ h = sym_hashes[r_index];
+
+ if (h != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
{
- case discard_none:
- break;
- case discard_l:
- if (*name == *finfo->info->lprefix
- && (finfo->info->lprefix_len == 1
- || strncmp (name, finfo->info->lprefix,
- finfo->info->lprefix_len) == 0))
- skip = true;
- break;
- case discard_all:
- skip = true;
- break;
+ relocation = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
}
- if (skip)
+ else if (h != NULL
+ && h->root.type == bfd_link_hash_undefweak)
+ relocation = 0;
+ else
{
- pass = false;
- continue;
+ hundef = TRUE;
+ relocation = 0;
}
}
- }
-
- /* Copy this symbol into the list of symbols we are going to
- write out. */
- bfd_h_put_8 (output_bfd, type, outsym->e_type);
- bfd_h_put_8 (output_bfd, bfd_h_get_8 (input_bfd, sym->e_other),
- outsym->e_other);
- bfd_h_put_16 (output_bfd, bfd_h_get_16 (input_bfd, sym->e_desc),
- outsym->e_desc);
- copy = false;
- if (! finfo->info->keep_memory)
- {
- /* name points into a string table which we are going to
- free. If there is a hash table entry, use that string.
- Otherwise, copy name into memory. */
- if (h != (struct aout_link_hash_entry *) NULL)
- name = h->root.root.string;
- else
- copy = true;
- }
- strtab_index = add_to_stringtab (output_bfd, finfo->strtab,
- name, copy);
- if (strtab_index == (bfd_size_type) -1)
- return false;
- PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
- PUT_WORD (output_bfd, val, outsym->e_value);
- *symbol_map = obj_aout_external_sym_count (output_bfd);
- ++obj_aout_external_sym_count (output_bfd);
- ++outsym;
- }
+ else if (r_type == (unsigned int) RELOC_BASE10
+ || r_type == (unsigned int) RELOC_BASE13
+ || r_type == (unsigned int) RELOC_BASE22)
+ {
+ struct external_nlist *sym;
+ int type;
- /* Write out the output symbols we have just constructed. */
- if (outsym > finfo->output_syms)
- {
- bfd_size_type outsym_count;
-
- if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0)
- return false;
- outsym_count = outsym - finfo->output_syms;
- if (bfd_write ((PTR) finfo->output_syms,
- (bfd_size_type) EXTERNAL_NLIST_SIZE,
- (bfd_size_type) outsym_count, output_bfd)
- != outsym_count * EXTERNAL_NLIST_SIZE)
- return false;
- finfo->symoff += outsym_count * EXTERNAL_NLIST_SIZE;
- }
+ /* For base relative relocs, r_index is always an index
+ into the symbol table, even if r_extern is 0. */
+ sym = syms + r_index;
+ type = H_GET_8 (input_bfd, sym->e_type);
+ if ((type & N_TYPE) == N_TEXT
+ || type == N_WEAKT)
+ r_section = obj_textsec (input_bfd);
+ else if ((type & N_TYPE) == N_DATA
+ || type == N_WEAKD)
+ r_section = obj_datasec (input_bfd);
+ else if ((type & N_TYPE) == N_BSS
+ || type == N_WEAKB)
+ r_section = obj_bsssec (input_bfd);
+ else if ((type & N_TYPE) == N_ABS
+ || type == N_WEAKA)
+ r_section = bfd_abs_section_ptr;
+ else
+ abort ();
+ relocation = (r_section->output_section->vma
+ + r_section->output_offset
+ + (GET_WORD (input_bfd, sym->e_value)
+ - r_section->vma));
+ }
+ else
+ {
+ r_section = aout_reloc_index_to_section (input_bfd, r_index);
- return true;
-}
+ /* If this is a PC relative reloc, then R_ADDEND is the
+ difference between the two vmas, or
+ old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
+ where
+ old_dest_sec == section->vma
+ and
+ old_src_sec == input_section->vma
+ and
+ old_src_off == r_addr
-/* Write out a symbol that was not associated with an a.out input
- object. */
+ _bfd_final_link_relocate expects RELOCATION +
+ R_ADDEND to be the VMA of the destination minus
+ r_addr (the minus r_addr is because this relocation
+ is not pcrel_offset, which is a bit confusing and
+ should, perhaps, be changed), or
+ new_dest_sec
+ where
+ new_dest_sec == output_section->vma + output_offset
+ We arrange for this to happen by setting RELOCATION to
+ new_dest_sec + old_src_sec - old_dest_sec
-static boolean
-aout_link_write_other_symbol (h, data)
- struct aout_link_hash_entry *h;
- PTR data;
-{
- struct aout_final_link_info *finfo = (struct aout_final_link_info *) data;
- bfd *output_bfd;
- int type;
- bfd_vma val;
- struct external_nlist outsym;
- bfd_size_type indx;
+ If this is not a PC relative reloc, then R_ADDEND is
+ simply the VMA of the destination, so we set
+ RELOCATION to the change in the destination VMA, or
+ new_dest_sec - old_dest_sec
+ */
+ relocation = (r_section->output_section->vma
+ + r_section->output_offset
+ - r_section->vma);
+ if (howto_table_ext[r_type].pc_relative)
+ relocation += input_section->vma;
+ }
- output_bfd = finfo->output_bfd;
+ if (check_dynamic_reloc != NULL)
+ {
+ bfd_boolean skip;
- if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
- {
- if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
- (output_bfd, finfo->info, h)))
- {
- /* FIXME: No way to handle errors. */
- abort ();
- }
- }
+ if (! ((*check_dynamic_reloc)
+ (flaginfo->info, input_bfd, input_section, h,
+ (void *) rel, contents, &skip, &relocation)))
+ return FALSE;
+ if (skip)
+ continue;
+ }
- if (h->written)
- return true;
+ /* Now warn if a global symbol is undefined. We could not
+ do this earlier, because check_dynamic_reloc might want
+ to skip this reloc. */
+ if (hundef
+ && ! bfd_link_pic (flaginfo->info)
+ && r_type != (unsigned int) RELOC_BASE10
+ && r_type != (unsigned int) RELOC_BASE13
+ && r_type != (unsigned int) RELOC_BASE22)
+ {
+ const char *name;
- h->written = true;
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
+ (*flaginfo->info->callbacks->undefined_symbol)
+ (flaginfo->info, name, input_bfd, input_section, r_addr, TRUE);
+ }
- /* An indx of -2 means the symbol must be written. */
- if (h->indx != -2
- && (finfo->info->strip == strip_all
- || (finfo->info->strip == strip_some
- && bfd_hash_lookup (finfo->info->keep_hash, h->root.root.string,
- false, false) == NULL)))
- return true;
+ if (r_type != (unsigned int) RELOC_SPARC_REV32)
+ r = MY_final_link_relocate (howto_table_ext + r_type,
+ input_bfd, input_section,
+ contents, r_addr, relocation,
+ r_addend);
+ else
+ {
+ bfd_vma x;
- switch (h->root.type)
- {
- default:
- abort ();
- /* Avoid variable not initialized warnings. */
- return true;
- case bfd_link_hash_new:
- /* This can happen for set symbols when sets are not being
- built. */
- return true;
- case bfd_link_hash_undefined:
- type = N_UNDF | N_EXT;
- val = 0;
- break;
- case bfd_link_hash_defined:
- case bfd_link_hash_defweak:
- {
- asection *sec;
+ x = bfd_get_32 (input_bfd, contents + r_addr);
+ x = x + relocation + r_addend;
+ bfd_putl32 (/*input_bfd,*/ x, contents + r_addr);
+ r = bfd_reloc_ok;
+ }
- sec = h->root.u.def.section->output_section;
- BFD_ASSERT (bfd_is_abs_section (sec)
- || sec->owner == output_bfd);
- if (sec == obj_textsec (output_bfd))
- type = h->root.type == bfd_link_hash_defined ? N_TEXT : N_WEAKT;
- else if (sec == obj_datasec (output_bfd))
- type = h->root.type == bfd_link_hash_defined ? N_DATA : N_WEAKD;
- else if (sec == obj_bsssec (output_bfd))
- type = h->root.type == bfd_link_hash_defined ? N_BSS : N_WEAKB;
- else
- type = h->root.type == bfd_link_hash_defined ? N_ABS : N_WEAKA;
- type |= N_EXT;
- val = (h->root.u.def.value
- + sec->vma
- + h->root.u.def.section->output_offset);
- }
- break;
- case bfd_link_hash_common:
- type = N_UNDF | N_EXT;
- val = h->root.u.c.size;
- break;
- case bfd_link_hash_undefweak:
- type = N_WEAKU;
- val = 0;
- case bfd_link_hash_indirect:
- case bfd_link_hash_warning:
- /* FIXME: Ignore these for now. The circumstances under which
- they should be written out are not clear to me. */
- return true;
- }
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ case bfd_reloc_overflow:
+ {
+ const char *name;
- bfd_h_put_8 (output_bfd, type, outsym.e_type);
- bfd_h_put_8 (output_bfd, 0, outsym.e_other);
- bfd_h_put_16 (output_bfd, 0, outsym.e_desc);
- indx = add_to_stringtab (output_bfd, finfo->strtab, h->root.root.string,
- false);
- if (indx == (bfd_size_type) -1)
- {
- /* FIXME: No way to handle errors. */
- abort ();
- }
- PUT_WORD (output_bfd, indx, outsym.e_strx);
- PUT_WORD (output_bfd, val, outsym.e_value);
+ if (h != NULL)
+ name = NULL;
+ else if (r_extern
+ || r_type == (unsigned int) RELOC_BASE10
+ || r_type == (unsigned int) RELOC_BASE13
+ || r_type == (unsigned int) RELOC_BASE22)
+ name = strings + GET_WORD (input_bfd,
+ syms[r_index].e_strx);
+ else
+ {
+ asection *s;
- if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0
- || bfd_write ((PTR) &outsym, (bfd_size_type) EXTERNAL_NLIST_SIZE,
- (bfd_size_type) 1, output_bfd) != EXTERNAL_NLIST_SIZE)
- {
- /* FIXME: No way to handle errors. */
- abort ();
+ s = aout_reloc_index_to_section (input_bfd, r_index);
+ name = bfd_section_name (input_bfd, s);
+ }
+ (*flaginfo->info->callbacks->reloc_overflow)
+ (flaginfo->info, (h ? &h->root : NULL), name,
+ howto_table_ext[r_type].name,
+ r_addend, input_bfd, input_section, r_addr);
+ }
+ break;
+ }
+ }
+ }
}
- finfo->symoff += EXTERNAL_NLIST_SIZE;
- h->indx = obj_aout_external_sym_count (output_bfd);
- ++obj_aout_external_sym_count (output_bfd);
-
- return true;
+ return TRUE;
}
/* Link an a.out section into the output file. */
-static boolean
-aout_link_input_section (finfo, input_bfd, input_section, reloff_ptr,
- rel_size)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
- asection *input_section;
- file_ptr *reloff_ptr;
- bfd_size_type rel_size;
+static bfd_boolean
+aout_link_input_section (struct aout_final_link_info *flaginfo,
+ bfd *input_bfd,
+ asection *input_section,
+ file_ptr *reloff_ptr,
+ bfd_size_type rel_size)
{
bfd_size_type input_size;
- PTR relocs;
+ void * relocs;
/* Get the section contents. */
- input_size = bfd_section_size (input_bfd, input_section);
+ input_size = input_section->size;
if (! bfd_get_section_contents (input_bfd, input_section,
- (PTR) finfo->contents,
+ (void *) flaginfo->contents,
(file_ptr) 0, input_size))
- return false;
+ return FALSE;
/* Read in the relocs if we haven't already done it. */
if (aout_section_data (input_section) != NULL
relocs = aout_section_data (input_section)->relocs;
else
{
- relocs = finfo->relocs;
+ relocs = flaginfo->relocs;
if (rel_size > 0)
{
if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
- || bfd_read (relocs, 1, rel_size, input_bfd) != rel_size)
- return false;
+ || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
+ return FALSE;
}
}
/* Relocate the section contents. */
if (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE)
{
- if (! aout_link_input_section_std (finfo, input_bfd, input_section,
+ if (! aout_link_input_section_std (flaginfo, input_bfd, input_section,
(struct reloc_std_external *) relocs,
- rel_size, finfo->contents))
- return false;
+ rel_size, flaginfo->contents))
+ return FALSE;
}
else
{
- if (! aout_link_input_section_ext (finfo, input_bfd, input_section,
+ if (! aout_link_input_section_ext (flaginfo, input_bfd, input_section,
(struct reloc_ext_external *) relocs,
- rel_size, finfo->contents))
- return false;
+ rel_size, flaginfo->contents))
+ return FALSE;
}
/* Write out the section contents. */
- if (! bfd_set_section_contents (finfo->output_bfd,
+ if (! bfd_set_section_contents (flaginfo->output_bfd,
input_section->output_section,
- (PTR) finfo->contents,
- input_section->output_offset,
+ (void *) flaginfo->contents,
+ (file_ptr) input_section->output_offset,
input_size))
- return false;
+ return FALSE;
- /* If we are producing relocateable output, the relocs were
+ /* If we are producing relocatable output, the relocs were
modified, and we now write them out. */
- if (finfo->info->relocateable && rel_size > 0)
+ if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
{
- if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
- return false;
- if (bfd_write (relocs, (bfd_size_type) 1, rel_size, finfo->output_bfd)
- != rel_size)
- return false;
+ if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
+ return FALSE;
+ if (bfd_bwrite (relocs, rel_size, flaginfo->output_bfd) != rel_size)
+ return FALSE;
*reloff_ptr += rel_size;
/* Assert that the relocs have not run into the symbols, and
that if these are the text relocs they have not run into the
data relocs. */
- BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
- && (reloff_ptr != &finfo->treloff
+ BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (flaginfo->output_bfd)
+ && (reloff_ptr != &flaginfo->treloff
|| (*reloff_ptr
- <= obj_datasec (finfo->output_bfd)->rel_filepos)));
+ <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
}
- return true;
+ return TRUE;
}
-/* Get the section corresponding to a reloc index. */
+/* Adjust and write out the symbols for an a.out file. Set the new
+ symbol indices into a symbol_map. */
-static INLINE asection *
-aout_reloc_index_to_section (abfd, indx)
- bfd *abfd;
- int indx;
+static bfd_boolean
+aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
{
- switch (indx & N_TYPE)
+ bfd *output_bfd;
+ bfd_size_type sym_count;
+ char *strings;
+ enum bfd_link_strip strip;
+ enum bfd_link_discard discard;
+ struct external_nlist *outsym;
+ bfd_size_type strtab_index;
+ struct external_nlist *sym;
+ struct external_nlist *sym_end;
+ struct aout_link_hash_entry **sym_hash;
+ int *symbol_map;
+ bfd_boolean pass;
+ bfd_boolean skip_next;
+
+ output_bfd = flaginfo->output_bfd;
+ sym_count = obj_aout_external_sym_count (input_bfd);
+ strings = obj_aout_external_strings (input_bfd);
+ strip = flaginfo->info->strip;
+ discard = flaginfo->info->discard;
+ outsym = flaginfo->output_syms;
+
+ /* First write out a symbol for this object file, unless we are
+ discarding such symbols. */
+ if (strip != strip_all
+ && (strip != strip_some
+ || bfd_hash_lookup (flaginfo->info->keep_hash, input_bfd->filename,
+ FALSE, FALSE) != NULL)
+ && discard != discard_all)
{
- case N_TEXT:
- return obj_textsec (abfd);
- case N_DATA:
- return obj_datasec (abfd);
- case N_BSS:
- return obj_bsssec (abfd);
- case N_ABS:
- case N_UNDF:
- return bfd_abs_section_ptr;
- default:
- abort ();
+ H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
+ H_PUT_8 (output_bfd, 0, outsym->e_other);
+ H_PUT_16 (output_bfd, 0, outsym->e_desc);
+ strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
+ input_bfd->filename, FALSE);
+ if (strtab_index == (bfd_size_type) -1)
+ return FALSE;
+ PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
+ PUT_WORD (output_bfd,
+ (bfd_get_section_vma (output_bfd,
+ obj_textsec (input_bfd)->output_section)
+ + obj_textsec (input_bfd)->output_offset),
+ outsym->e_value);
+ ++obj_aout_external_sym_count (output_bfd);
+ ++outsym;
}
-}
-/* Relocate an a.out section using standard a.out relocs. */
+ pass = FALSE;
+ skip_next = FALSE;
+ sym = obj_aout_external_syms (input_bfd);
+ sym_end = sym + sym_count;
+ sym_hash = obj_aout_sym_hashes (input_bfd);
+ symbol_map = flaginfo->symbol_map;
+ memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
+ for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
+ {
+ const char *name;
+ int type;
+ struct aout_link_hash_entry *h;
+ bfd_boolean skip;
+ asection *symsec;
+ bfd_vma val = 0;
+ bfd_boolean copy;
-static boolean
-aout_link_input_section_std (finfo, input_bfd, input_section, relocs,
- rel_size, contents)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
- asection *input_section;
- struct reloc_std_external *relocs;
- bfd_size_type rel_size;
- bfd_byte *contents;
-{
- boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *,
- bfd *, asection *,
- struct aout_link_hash_entry *,
- PTR, bfd_byte *, boolean *,
- bfd_vma *));
- bfd *output_bfd;
- boolean relocateable;
- struct external_nlist *syms;
- char *strings;
- struct aout_link_hash_entry **sym_hashes;
- int *symbol_map;
- bfd_size_type reloc_count;
- register struct reloc_std_external *rel;
- struct reloc_std_external *rel_end;
+ /* We set *symbol_map to 0 above for all symbols. If it has
+ already been set to -1 for this symbol, it means that we are
+ discarding it because it appears in a duplicate header file.
+ See the N_BINCL code below. */
+ if (*symbol_map == -1)
+ continue;
- output_bfd = finfo->output_bfd;
- check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
+ /* Initialize *symbol_map to -1, which means that the symbol was
+ not copied into the output file. We will change it later if
+ we do copy the symbol over. */
+ *symbol_map = -1;
- BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_STD_SIZE);
- BFD_ASSERT (input_bfd->xvec->header_byteorder_big_p
- == output_bfd->xvec->header_byteorder_big_p);
+ type = H_GET_8 (input_bfd, sym->e_type);
+ name = strings + GET_WORD (input_bfd, sym->e_strx);
- relocateable = finfo->info->relocateable;
- syms = obj_aout_external_syms (input_bfd);
- strings = obj_aout_external_strings (input_bfd);
- sym_hashes = obj_aout_sym_hashes (input_bfd);
- symbol_map = finfo->symbol_map;
+ h = NULL;
- reloc_count = rel_size / RELOC_STD_SIZE;
- rel = relocs;
- rel_end = rel + reloc_count;
- for (; rel < rel_end; rel++)
- {
- bfd_vma r_addr;
- int r_index;
- int r_extern;
- int r_pcrel;
- int r_baserel = 0;
- reloc_howto_type *howto;
- struct aout_link_hash_entry *h = NULL;
- bfd_vma relocation;
- bfd_reloc_status_type r;
+ if (pass)
+ {
+ /* Pass this symbol through. It is the target of an
+ indirect or warning symbol. */
+ val = GET_WORD (input_bfd, sym->e_value);
+ pass = FALSE;
+ }
+ else if (skip_next)
+ {
+ /* Skip this symbol, which is the target of an indirect
+ symbol that we have changed to no longer be an indirect
+ symbol. */
+ skip_next = FALSE;
+ continue;
+ }
+ else
+ {
+ struct aout_link_hash_entry *hresolve;
+
+ /* We have saved the hash table entry for this symbol, if
+ there is one. Note that we could just look it up again
+ in the hash table, provided we first check that it is an
+ external symbol. */
+ h = *sym_hash;
+
+ /* Use the name from the hash table, in case the symbol was
+ wrapped. */
+ if (h != NULL
+ && h->root.type != bfd_link_hash_warning)
+ name = h->root.root.string;
+
+ /* If this is an indirect or warning symbol, then change
+ hresolve to the base symbol. We also change *sym_hash so
+ that the relocation routines relocate against the real
+ symbol. */
+ hresolve = h;
+ if (h != (struct aout_link_hash_entry *) NULL
+ && (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning))
+ {
+ hresolve = (struct aout_link_hash_entry *) h->root.u.i.link;
+ while (hresolve->root.type == bfd_link_hash_indirect
+ || hresolve->root.type == bfd_link_hash_warning)
+ hresolve = ((struct aout_link_hash_entry *)
+ hresolve->root.u.i.link);
+ *sym_hash = hresolve;
+ }
- r_addr = GET_SWORD (input_bfd, rel->r_address);
+ /* If the symbol has already been written out, skip it. */
+ if (h != NULL
+ && h->written)
+ {
+ if ((type & N_TYPE) == N_INDR
+ || type == N_WARNING)
+ skip_next = TRUE;
+ *symbol_map = h->indx;
+ continue;
+ }
-#ifdef MY_reloc_howto
- howto = MY_reloc_howto(input_bfd, rel, r_index, r_extern, r_pcrel);
-#else
- {
- int r_jmptable;
- int r_relative;
- int r_length;
- unsigned int howto_idx;
+ /* See if we are stripping this symbol. */
+ skip = FALSE;
+ switch (strip)
+ {
+ case strip_none:
+ break;
+ case strip_debugger:
+ if ((type & N_STAB) != 0)
+ skip = TRUE;
+ break;
+ case strip_some:
+ if (bfd_hash_lookup (flaginfo->info->keep_hash, name, FALSE, FALSE)
+ == NULL)
+ skip = TRUE;
+ break;
+ case strip_all:
+ skip = TRUE;
+ break;
+ }
+ if (skip)
+ {
+ if (h != NULL)
+ h->written = TRUE;
+ continue;
+ }
- if (input_bfd->xvec->header_byteorder_big_p)
- {
- r_index = ((rel->r_index[0] << 16)
- | (rel->r_index[1] << 8)
- | rel->r_index[2]);
- r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_BIG));
- r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_BIG));
- r_baserel = (0 != (rel->r_type[0] & RELOC_STD_BITS_BASEREL_BIG));
- r_jmptable= (0 != (rel->r_type[0] & RELOC_STD_BITS_JMPTABLE_BIG));
- r_relative= (0 != (rel->r_type[0] & RELOC_STD_BITS_RELATIVE_BIG));
- r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_BIG)
- >> RELOC_STD_BITS_LENGTH_SH_BIG);
- }
- else
- {
- r_index = ((rel->r_index[2] << 16)
- | (rel->r_index[1] << 8)
- | rel->r_index[0]);
- r_extern = (0 != (rel->r_type[0] & RELOC_STD_BITS_EXTERN_LITTLE));
- r_pcrel = (0 != (rel->r_type[0] & RELOC_STD_BITS_PCREL_LITTLE));
- r_baserel = (0 != (rel->r_type[0]
- & RELOC_STD_BITS_BASEREL_LITTLE));
- r_jmptable= (0 != (rel->r_type[0]
- & RELOC_STD_BITS_JMPTABLE_LITTLE));
- r_relative= (0 != (rel->r_type[0]
- & RELOC_STD_BITS_RELATIVE_LITTLE));
- r_length = ((rel->r_type[0] & RELOC_STD_BITS_LENGTH_LITTLE)
- >> RELOC_STD_BITS_LENGTH_SH_LITTLE);
- }
+ /* Get the value of the symbol. */
+ if ((type & N_TYPE) == N_TEXT
+ || type == N_WEAKT)
+ symsec = obj_textsec (input_bfd);
+ else if ((type & N_TYPE) == N_DATA
+ || type == N_WEAKD)
+ symsec = obj_datasec (input_bfd);
+ else if ((type & N_TYPE) == N_BSS
+ || type == N_WEAKB)
+ symsec = obj_bsssec (input_bfd);
+ else if ((type & N_TYPE) == N_ABS
+ || type == N_WEAKA)
+ symsec = bfd_abs_section_ptr;
+ else if (((type & N_TYPE) == N_INDR
+ && (hresolve == NULL
+ || (hresolve->root.type != bfd_link_hash_defined
+ && hresolve->root.type != bfd_link_hash_defweak
+ && hresolve->root.type != bfd_link_hash_common)))
+ || type == N_WARNING)
+ {
+ /* Pass the next symbol through unchanged. The
+ condition above for indirect symbols is so that if
+ the indirect symbol was defined, we output it with
+ the correct definition so the debugger will
+ understand it. */
+ pass = TRUE;
+ val = GET_WORD (input_bfd, sym->e_value);
+ symsec = NULL;
+ }
+ else if ((type & N_STAB) != 0)
+ {
+ val = GET_WORD (input_bfd, sym->e_value);
+ symsec = NULL;
+ }
+ else
+ {
+ /* If we get here with an indirect symbol, it means that
+ we are outputting it with a real definition. In such
+ a case we do not want to output the next symbol,
+ which is the target of the indirection. */
+ if ((type & N_TYPE) == N_INDR)
+ skip_next = TRUE;
- howto_idx = (r_length + 4 * r_pcrel + 8 * r_baserel
- + 16 * r_jmptable + 32 * r_relative);
- BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_std));
- howto = howto_table_std + howto_idx;
- }
-#endif
+ symsec = NULL;
- if (relocateable)
- {
- /* We are generating a relocateable output file, and must
- modify the reloc accordingly. */
- if (r_extern)
- {
- /* If we know the symbol this relocation is against,
- convert it into a relocation against a section. This
- is what the native linker does. */
- h = sym_hashes[r_index];
- if (h != (struct aout_link_hash_entry *) NULL
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak))
+ /* We need to get the value from the hash table. We use
+ hresolve so that if we have defined an indirect
+ symbol we output the final definition. */
+ if (h == NULL)
{
+ switch (type & N_TYPE)
+ {
+ case N_SETT:
+ symsec = obj_textsec (input_bfd);
+ break;
+ case N_SETD:
+ symsec = obj_datasec (input_bfd);
+ break;
+ case N_SETB:
+ symsec = obj_bsssec (input_bfd);
+ break;
+ case N_SETA:
+ symsec = bfd_abs_section_ptr;
+ break;
+ default:
+ val = 0;
+ break;
+ }
+ }
+ else if (hresolve->root.type == bfd_link_hash_defined
+ || hresolve->root.type == bfd_link_hash_defweak)
+ {
+ asection *input_section;
asection *output_section;
- /* Change the r_extern value. */
- if (output_bfd->xvec->header_byteorder_big_p)
- rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_BIG;
- else
- rel->r_type[0] &=~ RELOC_STD_BITS_EXTERN_LITTLE;
+ /* This case usually means a common symbol which was
+ turned into a defined symbol. */
+ input_section = hresolve->root.u.def.section;
+ output_section = input_section->output_section;
+ BFD_ASSERT (bfd_is_abs_section (output_section)
+ || output_section->owner == output_bfd);
+ val = (hresolve->root.u.def.value
+ + bfd_get_section_vma (output_bfd, output_section)
+ + input_section->output_offset);
+
+ /* Get the correct type based on the section. If
+ this is a constructed set, force it to be
+ globally visible. */
+ if (type == N_SETT
+ || type == N_SETD
+ || type == N_SETB
+ || type == N_SETA)
+ type |= N_EXT;
+
+ type &=~ N_TYPE;
- /* Compute a new r_index. */
- output_section = h->root.u.def.section->output_section;
if (output_section == obj_textsec (output_bfd))
- r_index = N_TEXT;
+ type |= (hresolve->root.type == bfd_link_hash_defined
+ ? N_TEXT
+ : N_WEAKT);
else if (output_section == obj_datasec (output_bfd))
- r_index = N_DATA;
+ type |= (hresolve->root.type == bfd_link_hash_defined
+ ? N_DATA
+ : N_WEAKD);
else if (output_section == obj_bsssec (output_bfd))
- r_index = N_BSS;
+ type |= (hresolve->root.type == bfd_link_hash_defined
+ ? N_BSS
+ : N_WEAKB);
else
- r_index = N_ABS;
-
- /* Add the symbol value and the section VMA to the
- addend stored in the contents. */
- relocation = (h->root.u.def.value
- + output_section->vma
- + h->root.u.def.section->output_offset);
+ type |= (hresolve->root.type == bfd_link_hash_defined
+ ? N_ABS
+ : N_WEAKA);
}
- else
+ else if (hresolve->root.type == bfd_link_hash_common)
+ val = hresolve->root.u.c.size;
+ else if (hresolve->root.type == bfd_link_hash_undefweak)
{
- /* We must change r_index according to the symbol
- map. */
- r_index = symbol_map[r_index];
-
- if (r_index == -1)
- {
- if (h != NULL)
- {
- /* We decided to strip this symbol, but it
- turns out that we can't. Note that we
- lose the other and desc information here.
- I don't think that will ever matter for a
- global symbol. */
- if (h->indx < 0)
- {
- h->indx = -2;
- h->written = false;
- if (! aout_link_write_other_symbol (h,
- (PTR) finfo))
- return false;
- }
- r_index = h->indx;
- }
- else
- {
- const char *name;
-
- name = strings + GET_WORD (input_bfd,
- syms[r_index].e_strx);
- if (! ((*finfo->info->callbacks->unattached_reloc)
- (finfo->info, name, input_bfd, input_section,
- r_addr)))
- return false;
- r_index = 0;
- }
- }
-
- relocation = 0;
+ val = 0;
+ type = N_WEAKU;
}
+ else
+ val = 0;
+ }
+ if (symsec != NULL)
+ val = (symsec->output_section->vma
+ + symsec->output_offset
+ + (GET_WORD (input_bfd, sym->e_value)
+ - symsec->vma));
- /* Write out the new r_index value. */
- if (output_bfd->xvec->header_byteorder_big_p)
+ /* If this is a global symbol set the written flag, and if
+ it is a local symbol see if we should discard it. */
+ if (h != NULL)
+ {
+ h->written = TRUE;
+ h->indx = obj_aout_external_sym_count (output_bfd);
+ }
+ else if ((type & N_TYPE) != N_SETT
+ && (type & N_TYPE) != N_SETD
+ && (type & N_TYPE) != N_SETB
+ && (type & N_TYPE) != N_SETA)
+ {
+ switch (discard)
{
- rel->r_index[0] = r_index >> 16;
- rel->r_index[1] = r_index >> 8;
- rel->r_index[2] = r_index;
+ case discard_none:
+ case discard_sec_merge:
+ break;
+ case discard_l:
+ if ((type & N_STAB) == 0
+ && bfd_is_local_label_name (input_bfd, name))
+ skip = TRUE;
+ break;
+ case discard_all:
+ skip = TRUE;
+ break;
}
- else
+ if (skip)
{
- rel->r_index[2] = r_index >> 16;
- rel->r_index[1] = r_index >> 8;
- rel->r_index[0] = r_index;
+ pass = FALSE;
+ continue;
}
}
- else
- {
- asection *section;
-
- /* This is a relocation against a section. We must
- adjust by the amount that the section moved. */
- section = aout_reloc_index_to_section (input_bfd, r_index);
- relocation = (section->output_section->vma
- + section->output_offset
- - section->vma);
- }
-
- /* Change the address of the relocation. */
- PUT_WORD (output_bfd,
- r_addr + input_section->output_offset,
- rel->r_address);
-
- /* Adjust a PC relative relocation by removing the reference
- to the original address in the section and including the
- reference to the new address. */
- if (r_pcrel)
- relocation -= (input_section->output_section->vma
- + input_section->output_offset
- - input_section->vma);
-#ifdef MY_relocatable_reloc
- MY_relocatable_reloc (howto, output_bfd, rel, relocation, r_addr);
-#endif
+ /* An N_BINCL symbol indicates the start of the stabs
+ entries for a header file. We need to scan ahead to the
+ next N_EINCL symbol, ignoring nesting, adding up all the
+ characters in the symbol names, not including the file
+ numbers in types (the first number after an open
+ parenthesis). */
+ if (type == (int) N_BINCL)
+ {
+ struct external_nlist *incl_sym;
+ int nest;
+ struct aout_link_includes_entry *incl_entry;
+ struct aout_link_includes_totals *t;
+
+ val = 0;
+ nest = 0;
+ for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
+ {
+ int incl_type;
- if (relocation == 0)
- r = bfd_reloc_ok;
- else
- r = MY_relocate_contents (howto,
- input_bfd, relocation,
- contents + r_addr);
- }
- else
- {
- boolean hundef;
+ incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
+ if (incl_type == (int) N_EINCL)
+ {
+ if (nest == 0)
+ break;
+ --nest;
+ }
+ else if (incl_type == (int) N_BINCL)
+ ++nest;
+ else if (nest == 0)
+ {
+ const char *s;
- /* We are generating an executable, and must do a full
- relocation. */
- hundef = false;
- if (r_extern)
- {
- h = sym_hashes[r_index];
+ s = strings + GET_WORD (input_bfd, incl_sym->e_strx);
+ for (; *s != '\0'; s++)
+ {
+ val += *s;
+ if (*s == '(')
+ {
+ /* Skip the file number. */
+ ++s;
+ while (ISDIGIT (*s))
+ ++s;
+ --s;
+ }
+ }
+ }
+ }
- if (h != (struct aout_link_hash_entry *) NULL
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak))
+ /* If we have already included a header file with the
+ same value, then replace this one with an N_EXCL
+ symbol. */
+ copy = (bfd_boolean) (! flaginfo->info->keep_memory);
+ incl_entry = aout_link_includes_lookup (&flaginfo->includes,
+ name, TRUE, copy);
+ if (incl_entry == NULL)
+ return FALSE;
+ for (t = incl_entry->totals; t != NULL; t = t->next)
+ if (t->total == val)
+ break;
+ if (t == NULL)
{
- relocation = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
+ /* This is the first time we have seen this header
+ file with this set of stabs strings. */
+ t = (struct aout_link_includes_totals *)
+ bfd_hash_allocate (&flaginfo->includes.root,
+ sizeof *t);
+ if (t == NULL)
+ return FALSE;
+ t->total = val;
+ t->next = incl_entry->totals;
+ incl_entry->totals = t;
}
- else if (h != (struct aout_link_hash_entry *) NULL
- && h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
else
{
- hundef = true;
- relocation = 0;
- }
- }
- else
- {
- asection *section;
-
- section = aout_reloc_index_to_section (input_bfd, r_index);
- relocation = (section->output_section->vma
- + section->output_offset
- - section->vma);
- if (r_pcrel)
- relocation += input_section->vma;
- }
-
- if (check_dynamic_reloc != NULL)
- {
- boolean skip;
+ int *incl_map;
- if (! ((*check_dynamic_reloc)
- (finfo->info, input_bfd, input_section, h,
- (PTR) rel, contents, &skip, &relocation)))
- return false;
- if (skip)
- continue;
- }
+ /* This is a duplicate header file. We must change
+ it to be an N_EXCL entry, and mark all the
+ included symbols to prevent outputting them. */
+ type = (int) N_EXCL;
- /* Now warn if a global symbol is undefined. We could not
- do this earlier, because check_dynamic_reloc might want
- to skip this reloc. */
- if (hundef && ! finfo->info->shared && ! r_baserel)
- {
- const char *name;
+ nest = 0;
+ for (incl_sym = sym + 1, incl_map = symbol_map + 1;
+ incl_sym < sym_end;
+ incl_sym++, incl_map++)
+ {
+ int incl_type;
- name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
- if (! ((*finfo->info->callbacks->undefined_symbol)
- (finfo->info, name, input_bfd, input_section, r_addr)))
- return false;
+ incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
+ if (incl_type == (int) N_EINCL)
+ {
+ if (nest == 0)
+ {
+ *incl_map = -1;
+ break;
+ }
+ --nest;
+ }
+ else if (incl_type == (int) N_BINCL)
+ ++nest;
+ else if (nest == 0)
+ *incl_map = -1;
+ }
+ }
}
-
- r = MY_final_link_relocate (howto,
- input_bfd, input_section,
- contents, r_addr, relocation,
- (bfd_vma) 0);
}
- if (r != bfd_reloc_ok)
+ /* Copy this symbol into the list of symbols we are going to
+ write out. */
+ H_PUT_8 (output_bfd, type, outsym->e_type);
+ H_PUT_8 (output_bfd, H_GET_8 (input_bfd, sym->e_other), outsym->e_other);
+ H_PUT_16 (output_bfd, H_GET_16 (input_bfd, sym->e_desc), outsym->e_desc);
+ copy = FALSE;
+ if (! flaginfo->info->keep_memory)
{
- switch (r)
- {
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- {
- const char *name;
-
- if (r_extern)
- name = strings + GET_WORD (input_bfd,
- syms[r_index].e_strx);
- else
- {
- asection *s;
-
- s = aout_reloc_index_to_section (input_bfd, r_index);
- name = bfd_section_name (input_bfd, s);
- }
- if (! ((*finfo->info->callbacks->reloc_overflow)
- (finfo->info, name, howto->name,
- (bfd_vma) 0, input_bfd, input_section, r_addr)))
- return false;
- }
- break;
- }
+ /* name points into a string table which we are going to
+ free. If there is a hash table entry, use that string.
+ Otherwise, copy name into memory. */
+ if (h != NULL)
+ name = h->root.root.string;
+ else
+ copy = TRUE;
}
+ strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
+ name, copy);
+ if (strtab_index == (bfd_size_type) -1)
+ return FALSE;
+ PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
+ PUT_WORD (output_bfd, val, outsym->e_value);
+ *symbol_map = obj_aout_external_sym_count (output_bfd);
+ ++obj_aout_external_sym_count (output_bfd);
+ ++outsym;
+ }
+
+ /* Write out the output symbols we have just constructed. */
+ if (outsym > flaginfo->output_syms)
+ {
+ bfd_size_type outsym_size;
+
+ if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
+ return FALSE;
+ outsym_size = outsym - flaginfo->output_syms;
+ outsym_size *= EXTERNAL_NLIST_SIZE;
+ if (bfd_bwrite ((void *) flaginfo->output_syms, outsym_size, output_bfd)
+ != outsym_size)
+ return FALSE;
+ flaginfo->symoff += outsym_size;
}
- return true;
+ return TRUE;
}
-/* Relocate an a.out section using extended a.out relocs. */
+/* Link an a.out input BFD into the output file. */
-static boolean
-aout_link_input_section_ext (finfo, input_bfd, input_section, relocs,
- rel_size, contents)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
- asection *input_section;
- struct reloc_ext_external *relocs;
- bfd_size_type rel_size;
- bfd_byte *contents;
+static bfd_boolean
+aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
{
- boolean (*check_dynamic_reloc) PARAMS ((struct bfd_link_info *,
- bfd *, asection *,
- struct aout_link_hash_entry *,
- PTR, bfd_byte *, boolean *,
- bfd_vma *));
- bfd *output_bfd;
- boolean relocateable;
- struct external_nlist *syms;
- char *strings;
- struct aout_link_hash_entry **sym_hashes;
- int *symbol_map;
- bfd_size_type reloc_count;
- register struct reloc_ext_external *rel;
- struct reloc_ext_external *rel_end;
+ BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
- output_bfd = finfo->output_bfd;
- check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
+ /* If this is a dynamic object, it may need special handling. */
+ if ((input_bfd->flags & DYNAMIC) != 0
+ && aout_backend_info (input_bfd)->link_dynamic_object != NULL)
+ return ((*aout_backend_info (input_bfd)->link_dynamic_object)
+ (flaginfo->info, input_bfd));
- BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_EXT_SIZE);
- BFD_ASSERT (input_bfd->xvec->header_byteorder_big_p
- == output_bfd->xvec->header_byteorder_big_p);
+ /* Get the symbols. We probably have them already, unless
+ flaginfo->info->keep_memory is FALSE. */
+ if (! aout_get_external_symbols (input_bfd))
+ return FALSE;
- relocateable = finfo->info->relocateable;
- syms = obj_aout_external_syms (input_bfd);
- strings = obj_aout_external_strings (input_bfd);
- sym_hashes = obj_aout_sym_hashes (input_bfd);
- symbol_map = finfo->symbol_map;
+ /* Write out the symbols and get a map of the new indices. The map
+ is placed into flaginfo->symbol_map. */
+ if (! aout_link_write_symbols (flaginfo, input_bfd))
+ return FALSE;
- reloc_count = rel_size / RELOC_EXT_SIZE;
- rel = relocs;
- rel_end = rel + reloc_count;
- for (; rel < rel_end; rel++)
+ /* Relocate and write out the sections. These functions use the
+ symbol map created by aout_link_write_symbols. The linker_mark
+ field will be set if these sections are to be included in the
+ link, which will normally be the case. */
+ if (obj_textsec (input_bfd)->linker_mark)
{
- bfd_vma r_addr;
- int r_index;
- int r_extern;
- unsigned int r_type;
- bfd_vma r_addend;
- struct aout_link_hash_entry *h = NULL;
- asection *r_section = NULL;
- bfd_vma relocation;
-
- r_addr = GET_SWORD (input_bfd, rel->r_address);
-
- if (input_bfd->xvec->header_byteorder_big_p)
- {
- r_index = ((rel->r_index[0] << 16)
- | (rel->r_index[1] << 8)
- | rel->r_index[2]);
- r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_BIG));
- r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_BIG)
- >> RELOC_EXT_BITS_TYPE_SH_BIG);
- }
- else
- {
- r_index = ((rel->r_index[2] << 16)
- | (rel->r_index[1] << 8)
- | rel->r_index[0]);
- r_extern = (0 != (rel->r_type[0] & RELOC_EXT_BITS_EXTERN_LITTLE));
- r_type = ((rel->r_type[0] & RELOC_EXT_BITS_TYPE_LITTLE)
- >> RELOC_EXT_BITS_TYPE_SH_LITTLE);
- }
-
- r_addend = GET_SWORD (input_bfd, rel->r_addend);
-
- BFD_ASSERT (r_type < TABLE_SIZE (howto_table_ext));
-
- if (relocateable)
- {
- /* We are generating a relocateable output file, and must
- modify the reloc accordingly. */
- if (r_extern)
- {
- /* If we know the symbol this relocation is against,
- convert it into a relocation against a section. This
- is what the native linker does. */
- h = sym_hashes[r_index];
- if (h != (struct aout_link_hash_entry *) NULL
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak))
- {
- asection *output_section;
-
- /* Change the r_extern value. */
- if (output_bfd->xvec->header_byteorder_big_p)
- rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_BIG;
- else
- rel->r_type[0] &=~ RELOC_EXT_BITS_EXTERN_LITTLE;
+ if (! aout_link_input_section (flaginfo, input_bfd,
+ obj_textsec (input_bfd),
+ &flaginfo->treloff,
+ exec_hdr (input_bfd)->a_trsize))
+ return FALSE;
+ }
+ if (obj_datasec (input_bfd)->linker_mark)
+ {
+ if (! aout_link_input_section (flaginfo, input_bfd,
+ obj_datasec (input_bfd),
+ &flaginfo->dreloff,
+ exec_hdr (input_bfd)->a_drsize))
+ return FALSE;
+ }
- /* Compute a new r_index. */
- output_section = h->root.u.def.section->output_section;
- if (output_section == obj_textsec (output_bfd))
- r_index = N_TEXT;
- else if (output_section == obj_datasec (output_bfd))
- r_index = N_DATA;
- else if (output_section == obj_bsssec (output_bfd))
- r_index = N_BSS;
- else
- r_index = N_ABS;
+ /* If we are not keeping memory, we don't need the symbols any
+ longer. We still need them if we are keeping memory, because the
+ strings in the hash table point into them. */
+ if (! flaginfo->info->keep_memory)
+ {
+ if (! aout_link_free_symbols (input_bfd))
+ return FALSE;
+ }
- /* Add the symbol value and the section VMA to the
- addend. */
- relocation = (h->root.u.def.value
- + output_section->vma
- + h->root.u.def.section->output_offset);
+ return TRUE;
+}
- /* Now RELOCATION is the VMA of the final
- destination. If this is a PC relative reloc,
- then ADDEND is the negative of the source VMA.
- We want to set ADDEND to the difference between
- the destination VMA and the source VMA, which
- means we must adjust RELOCATION by the change in
- the source VMA. This is done below. */
- }
- else
- {
- /* We must change r_index according to the symbol
- map. */
- r_index = symbol_map[r_index];
+/* Do the final link step. This is called on the output BFD. The
+ INFO structure should point to a list of BFDs linked through the
+ link.next field which can be used to find each BFD which takes part
+ in the output. Also, each section in ABFD should point to a list
+ of bfd_link_order structures which list all the input sections for
+ the output section. */
- if (r_index == -1)
- {
- if (h != NULL)
- {
- /* We decided to strip this symbol, but it
- turns out that we can't. Note that we
- lose the other and desc information here.
- I don't think that will ever matter for a
- global symbol. */
- if (h->indx < 0)
- {
- h->indx = -2;
- h->written = false;
- if (! aout_link_write_other_symbol (h,
- (PTR) finfo))
- return false;
- }
- r_index = h->indx;
- }
- else
- {
- const char *name;
+bfd_boolean
+NAME (aout, final_link) (bfd *abfd,
+ struct bfd_link_info *info,
+ void (*callback) (bfd *, file_ptr *, file_ptr *, file_ptr *))
+{
+ struct aout_final_link_info aout_info;
+ bfd_boolean includes_hash_initialized = FALSE;
+ bfd *sub;
+ bfd_size_type trsize, drsize;
+ bfd_size_type max_contents_size;
+ bfd_size_type max_relocs_size;
+ bfd_size_type max_sym_count;
+ struct bfd_link_order *p;
+ asection *o;
+ bfd_boolean have_link_order_relocs;
- name = strings + GET_WORD (input_bfd,
- syms[r_index].e_strx);
- if (! ((*finfo->info->callbacks->unattached_reloc)
- (finfo->info, name, input_bfd, input_section,
- r_addr)))
- return false;
- r_index = 0;
- }
- }
+ if (bfd_link_pic (info))
+ abfd->flags |= DYNAMIC;
- relocation = 0;
+ aout_info.info = info;
+ aout_info.output_bfd = abfd;
+ aout_info.contents = NULL;
+ aout_info.relocs = NULL;
+ aout_info.symbol_map = NULL;
+ aout_info.output_syms = NULL;
- /* If this is a PC relative reloc, then the addend
- is the negative of the source VMA. We must
- adjust it by the change in the source VMA. This
- is done below. */
- }
+ if (!bfd_hash_table_init_n (&aout_info.includes.root,
+ aout_link_includes_newfunc,
+ sizeof (struct aout_link_includes_entry),
+ 251))
+ goto error_return;
+ includes_hash_initialized = TRUE;
- /* Write out the new r_index value. */
- if (output_bfd->xvec->header_byteorder_big_p)
- {
- rel->r_index[0] = r_index >> 16;
- rel->r_index[1] = r_index >> 8;
- rel->r_index[2] = r_index;
- }
- else
- {
- rel->r_index[2] = r_index >> 16;
- rel->r_index[1] = r_index >> 8;
- rel->r_index[0] = r_index;
- }
+ /* Figure out the largest section size. Also, if generating
+ relocatable output, count the relocs. */
+ trsize = 0;
+ drsize = 0;
+ max_contents_size = 0;
+ max_relocs_size = 0;
+ max_sym_count = 0;
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
+ {
+ bfd_size_type sz;
+
+ if (bfd_link_relocatable (info))
+ {
+ if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
+ {
+ trsize += exec_hdr (sub)->a_trsize;
+ drsize += exec_hdr (sub)->a_drsize;
}
else
{
- /* This is a relocation against a section. We must
- adjust by the amount that the section moved. */
- r_section = aout_reloc_index_to_section (input_bfd, r_index);
- relocation = (r_section->output_section->vma
- + r_section->output_offset
- - r_section->vma);
-
- /* If this is a PC relative reloc, then the addend is
- the difference in VMA between the destination and the
- source. We have just adjusted for the change in VMA
- of the destination, so we must also adjust by the
- change in VMA of the source. This is done below. */
+ /* FIXME: We need to identify the .text and .data sections
+ and call get_reloc_upper_bound and canonicalize_reloc to
+ work out the number of relocs needed, and then multiply
+ by the reloc size. */
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: relocatable link from %s to %s not supported"),
+ abfd, sub->xvec->name, abfd->xvec->name);
+ bfd_set_error (bfd_error_invalid_operation);
+ goto error_return;
}
+ }
- /* As described above, we must always adjust a PC relative
- reloc by the change in VMA of the source. */
- if (howto_table_ext[r_type].pc_relative)
- relocation -= (input_section->output_section->vma
- + input_section->output_offset
- - input_section->vma);
+ if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
+ {
+ sz = obj_textsec (sub)->size;
+ if (sz > max_contents_size)
+ max_contents_size = sz;
+ sz = obj_datasec (sub)->size;
+ if (sz > max_contents_size)
+ max_contents_size = sz;
- /* Change the addend if necessary. */
- if (relocation != 0)
- PUT_WORD (output_bfd, r_addend + relocation, rel->r_addend);
+ sz = exec_hdr (sub)->a_trsize;
+ if (sz > max_relocs_size)
+ max_relocs_size = sz;
+ sz = exec_hdr (sub)->a_drsize;
+ if (sz > max_relocs_size)
+ max_relocs_size = sz;
- /* Change the address of the relocation. */
- PUT_WORD (output_bfd,
- r_addr + input_section->output_offset,
- rel->r_address);
+ sz = obj_aout_external_sym_count (sub);
+ if (sz > max_sym_count)
+ max_sym_count = sz;
}
- else
- {
- boolean hundef;
- bfd_reloc_status_type r;
+ }
- /* We are generating an executable, and must do a full
- relocation. */
- hundef = false;
- if (r_extern)
- {
- h = sym_hashes[r_index];
+ if (bfd_link_relocatable (info))
+ {
+ if (obj_textsec (abfd) != NULL)
+ trsize += (_bfd_count_link_order_relocs (obj_textsec (abfd)
+ ->map_head.link_order)
+ * obj_reloc_entry_size (abfd));
+ if (obj_datasec (abfd) != NULL)
+ drsize += (_bfd_count_link_order_relocs (obj_datasec (abfd)
+ ->map_head.link_order)
+ * obj_reloc_entry_size (abfd));
+ }
- if (h != (struct aout_link_hash_entry *) NULL
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak))
- {
- relocation = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- }
- else if (h != (struct aout_link_hash_entry *) NULL
- && h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
- else
- {
- hundef = true;
- relocation = 0;
- }
- }
- else if (r_type == RELOC_BASE10
- || r_type == RELOC_BASE13
- || r_type == RELOC_BASE22)
- {
- struct external_nlist *sym;
- int type;
+ exec_hdr (abfd)->a_trsize = trsize;
+ exec_hdr (abfd)->a_drsize = drsize;
- /* For base relative relocs, r_index is always an index
- into the symbol table, even if r_extern is 0. */
- sym = syms + r_index;
- type = bfd_h_get_8 (input_bfd, sym->e_type);
- if ((type & N_TYPE) == N_TEXT
- || type == N_WEAKT)
- r_section = obj_textsec (input_bfd);
- else if ((type & N_TYPE) == N_DATA
- || type == N_WEAKD)
- r_section = obj_datasec (input_bfd);
- else if ((type & N_TYPE) == N_BSS
- || type == N_WEAKB)
- r_section = obj_bsssec (input_bfd);
- else if ((type & N_TYPE) == N_ABS
- || type == N_WEAKA)
- r_section = bfd_abs_section_ptr;
- else
- abort ();
- relocation = (r_section->output_section->vma
- + r_section->output_offset
- + (GET_WORD (input_bfd, sym->e_value)
- - r_section->vma));
- }
- else
- {
- r_section = aout_reloc_index_to_section (input_bfd, r_index);
+ exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
- /* If this is a PC relative reloc, then R_ADDEND is the
- difference between the two vmas, or
- old_dest_sec + old_dest_off - (old_src_sec + old_src_off)
- where
- old_dest_sec == section->vma
- and
- old_src_sec == input_section->vma
- and
- old_src_off == r_addr
+ /* Adjust the section sizes and vmas according to the magic number.
+ This sets a_text, a_data and a_bss in the exec_hdr and sets the
+ filepos for each section. */
+ if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
+ goto error_return;
- _bfd_final_link_relocate expects RELOCATION +
- R_ADDEND to be the VMA of the destination minus
- r_addr (the minus r_addr is because this relocation
- is not pcrel_offset, which is a bit confusing and
- should, perhaps, be changed), or
- new_dest_sec
- where
- new_dest_sec == output_section->vma + output_offset
- We arrange for this to happen by setting RELOCATION to
- new_dest_sec + old_src_sec - old_dest_sec
+ /* The relocation and symbol file positions differ among a.out
+ targets. We are passed a callback routine from the backend
+ specific code to handle this.
+ FIXME: At this point we do not know how much space the symbol
+ table will require. This will not work for any (nonstandard)
+ a.out target that needs to know the symbol table size before it
+ can compute the relocation file positions. */
+ (*callback) (abfd, &aout_info.treloff, &aout_info.dreloff,
+ &aout_info.symoff);
+ obj_textsec (abfd)->rel_filepos = aout_info.treloff;
+ obj_datasec (abfd)->rel_filepos = aout_info.dreloff;
+ obj_sym_filepos (abfd) = aout_info.symoff;
- If this is not a PC relative reloc, then R_ADDEND is
- simply the VMA of the destination, so we set
- RELOCATION to the change in the destination VMA, or
- new_dest_sec - old_dest_sec
- */
- relocation = (r_section->output_section->vma
- + r_section->output_offset
- - r_section->vma);
- if (howto_table_ext[r_type].pc_relative)
- relocation += input_section->vma;
- }
+ /* We keep a count of the symbols as we output them. */
+ obj_aout_external_sym_count (abfd) = 0;
+
+ /* We accumulate the string table as we write out the symbols. */
+ aout_info.strtab = _bfd_stringtab_init ();
+ if (aout_info.strtab == NULL)
+ goto error_return;
+
+ /* Allocate buffers to hold section contents and relocs. */
+ aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
+ aout_info.relocs = bfd_malloc (max_relocs_size);
+ aout_info.symbol_map = (int *) bfd_malloc (max_sym_count * sizeof (int));
+ aout_info.output_syms = (struct external_nlist *)
+ bfd_malloc ((max_sym_count + 1) * sizeof (struct external_nlist));
+ if ((aout_info.contents == NULL && max_contents_size != 0)
+ || (aout_info.relocs == NULL && max_relocs_size != 0)
+ || (aout_info.symbol_map == NULL && max_sym_count != 0)
+ || aout_info.output_syms == NULL)
+ goto error_return;
+
+ /* If we have a symbol named __DYNAMIC, force it out now. This is
+ required by SunOS. Doing this here rather than in sunos.c is a
+ hack, but it's easier than exporting everything which would be
+ needed. */
+ {
+ struct aout_link_hash_entry *h;
+
+ h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
+ FALSE, FALSE, FALSE);
+ if (h != NULL)
+ aout_link_write_other_symbol (&h->root.root, &aout_info);
+ }
+
+ /* The most time efficient way to do the link would be to read all
+ the input object files into memory and then sort out the
+ information into the output file. Unfortunately, that will
+ probably use too much memory. Another method would be to step
+ through everything that composes the text section and write it
+ out, and then everything that composes the data section and write
+ it out, and then write out the relocs, and then write out the
+ symbols. Unfortunately, that requires reading stuff from each
+ input file several times, and we will not be able to keep all the
+ input files open simultaneously, and reopening them will be slow.
+
+ What we do is basically process one input file at a time. We do
+ everything we need to do with an input file once--copy over the
+ section contents, handle the relocation information, and write
+ out the symbols--and then we throw away the information we read
+ from it. This approach requires a lot of lseeks of the output
+ file, which is unfortunate but still faster than reopening a lot
+ of files.
+
+ We use the output_has_begun field of the input BFDs to see
+ whether we have already handled it. */
+ for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
+ sub->output_has_begun = FALSE;
+
+ /* Mark all sections which are to be included in the link. This
+ will normally be every section. We need to do this so that we
+ can identify any sections which the linker has decided to not
+ include. */
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ for (p = o->map_head.link_order; p != NULL; p = p->next)
+ if (p->type == bfd_indirect_link_order)
+ p->u.indirect.section->linker_mark = TRUE;
+ }
- if (check_dynamic_reloc != NULL)
+ have_link_order_relocs = FALSE;
+ for (o = abfd->sections; o != NULL; o = o->next)
+ {
+ for (p = o->map_head.link_order;
+ p != NULL;
+ p = p->next)
+ {
+ if (p->type == bfd_indirect_link_order
+ && (bfd_get_flavour (p->u.indirect.section->owner)
+ == bfd_target_aout_flavour))
{
- boolean skip;
+ bfd *input_bfd;
- if (! ((*check_dynamic_reloc)
- (finfo->info, input_bfd, input_section, h,
- (PTR) rel, contents, &skip, &relocation)))
- return false;
- if (skip)
- continue;
+ input_bfd = p->u.indirect.section->owner;
+ if (! input_bfd->output_has_begun)
+ {
+ if (! aout_link_input_bfd (&aout_info, input_bfd))
+ goto error_return;
+ input_bfd->output_has_begun = TRUE;
+ }
}
-
- /* Now warn if a global symbol is undefined. We could not
- do this earlier, because check_dynamic_reloc might want
- to skip this reloc. */
- if (hundef
- && ! finfo->info->shared
- && r_type != RELOC_BASE10
- && r_type != RELOC_BASE13
- && r_type != RELOC_BASE22)
+ else if (p->type == bfd_section_reloc_link_order
+ || p->type == bfd_symbol_reloc_link_order)
{
- const char *name;
-
- name = strings + GET_WORD (input_bfd, syms[r_index].e_strx);
- if (! ((*finfo->info->callbacks->undefined_symbol)
- (finfo->info, name, input_bfd, input_section, r_addr)))
- return false;
+ /* These are handled below. */
+ have_link_order_relocs = TRUE;
}
-
- r = MY_final_link_relocate (howto_table_ext + r_type,
- input_bfd, input_section,
- contents, r_addr, relocation,
- r_addend);
- if (r != bfd_reloc_ok)
+ else
{
- switch (r)
- {
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- {
- const char *name;
-
- if (r_extern
- || r_type == RELOC_BASE10
- || r_type == RELOC_BASE13
- || r_type == RELOC_BASE22)
- name = strings + GET_WORD (input_bfd,
- syms[r_index].e_strx);
- else
- {
- asection *s;
-
- s = aout_reloc_index_to_section (input_bfd, r_index);
- name = bfd_section_name (input_bfd, s);
- }
- if (! ((*finfo->info->callbacks->reloc_overflow)
- (finfo->info, name, howto_table_ext[r_type].name,
- r_addend, input_bfd, input_section, r_addr)))
- return false;
- }
- break;
- }
+ if (! _bfd_default_link_order (abfd, info, o, p))
+ goto error_return;
}
}
}
- return true;
-}
-
-/* Handle a link order which is supposed to generate a reloc. */
-
-static boolean
-aout_link_reloc_link_order (finfo, o, p)
- struct aout_final_link_info *finfo;
- asection *o;
- struct bfd_link_order *p;
-{
- struct bfd_link_order_reloc *pr;
- int r_index;
- int r_extern;
- reloc_howto_type *howto;
- file_ptr *reloff_ptr;
- struct reloc_std_external srel;
- struct reloc_ext_external erel;
- PTR rel_ptr;
-
- pr = p->u.reloc.p;
+ /* Write out any symbols that we have not already written out. */
+ bfd_hash_traverse (&info->hash->table,
+ aout_link_write_other_symbol,
+ &aout_info);
- if (p->type == bfd_section_reloc_link_order)
+ /* Now handle any relocs we were asked to create by the linker.
+ These did not come from any input file. We must do these after
+ we have written out all the symbols, so that we know the symbol
+ indices to use. */
+ if (have_link_order_relocs)
{
- r_extern = 0;
- if (bfd_is_abs_section (pr->u.section))
- r_index = N_ABS | N_EXT;
- else
+ for (o = abfd->sections; o != NULL; o = o->next)
{
- BFD_ASSERT (pr->u.section->owner == finfo->output_bfd);
- r_index = pr->u.section->target_index;
+ for (p = o->map_head.link_order;
+ p != NULL;
+ p = p->next)
+ {
+ if (p->type == bfd_section_reloc_link_order
+ || p->type == bfd_symbol_reloc_link_order)
+ {
+ if (! aout_link_reloc_link_order (&aout_info, o, p))
+ goto error_return;
+ }
+ }
}
}
- else
- {
- struct aout_link_hash_entry *h;
- BFD_ASSERT (p->type == bfd_symbol_reloc_link_order);
- r_extern = 1;
- h = aout_link_hash_lookup (aout_hash_table (finfo->info),
- pr->u.name, false, false, true);
- if (h != (struct aout_link_hash_entry *) NULL
- && h->indx >= 0)
- r_index = h->indx;
- else if (h != NULL)
- {
- /* We decided to strip this symbol, but it turns out that we
- can't. Note that we lose the other and desc information
- here. I don't think that will ever matter for a global
- symbol. */
- h->indx = -2;
- h->written = false;
- if (! aout_link_write_other_symbol (h, (PTR) finfo))
- return false;
- r_index = h->indx;
- }
- else
- {
- if (! ((*finfo->info->callbacks->unattached_reloc)
- (finfo->info, pr->u.name, (bfd *) NULL,
- (asection *) NULL, (bfd_vma) 0)))
- return false;
- r_index = 0;
- }
+ if (aout_info.contents != NULL)
+ {
+ free (aout_info.contents);
+ aout_info.contents = NULL;
}
-
- howto = bfd_reloc_type_lookup (finfo->output_bfd, pr->reloc);
- if (howto == 0)
+ if (aout_info.relocs != NULL)
{
- bfd_set_error (bfd_error_bad_value);
- return false;
+ free (aout_info.relocs);
+ aout_info.relocs = NULL;
}
-
- if (o == obj_textsec (finfo->output_bfd))
- reloff_ptr = &finfo->treloff;
- else if (o == obj_datasec (finfo->output_bfd))
- reloff_ptr = &finfo->dreloff;
- else
- abort ();
-
- if (obj_reloc_entry_size (finfo->output_bfd) == RELOC_STD_SIZE)
+ if (aout_info.symbol_map != NULL)
{
-#ifdef MY_put_reloc
- MY_put_reloc(finfo->output_bfd, r_extern, r_index, p->offset, howto,
- &srel);
-#else
- {
- int r_pcrel;
- int r_baserel;
- int r_jmptable;
- int r_relative;
- int r_length;
-
- r_pcrel = howto->pc_relative;
- r_baserel = (howto->type & 8) != 0;
- r_jmptable = (howto->type & 16) != 0;
- r_relative = (howto->type & 32) != 0;
- r_length = howto->size;
+ free (aout_info.symbol_map);
+ aout_info.symbol_map = NULL;
+ }
+ if (aout_info.output_syms != NULL)
+ {
+ free (aout_info.output_syms);
+ aout_info.output_syms = NULL;
+ }
+ if (includes_hash_initialized)
+ {
+ bfd_hash_table_free (&aout_info.includes.root);
+ includes_hash_initialized = FALSE;
+ }
- PUT_WORD (finfo->output_bfd, p->offset, srel.r_address);
- if (finfo->output_bfd->xvec->header_byteorder_big_p)
- {
- srel.r_index[0] = r_index >> 16;
- srel.r_index[1] = r_index >> 8;
- srel.r_index[2] = r_index;
- srel.r_type[0] =
- ((r_extern ? RELOC_STD_BITS_EXTERN_BIG : 0)
- | (r_pcrel ? RELOC_STD_BITS_PCREL_BIG : 0)
- | (r_baserel ? RELOC_STD_BITS_BASEREL_BIG : 0)
- | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_BIG : 0)
- | (r_relative ? RELOC_STD_BITS_RELATIVE_BIG : 0)
- | (r_length << RELOC_STD_BITS_LENGTH_SH_BIG));
- }
- else
- {
- srel.r_index[2] = r_index >> 16;
- srel.r_index[1] = r_index >> 8;
- srel.r_index[0] = r_index;
- srel.r_type[0] =
- ((r_extern ? RELOC_STD_BITS_EXTERN_LITTLE : 0)
- | (r_pcrel ? RELOC_STD_BITS_PCREL_LITTLE : 0)
- | (r_baserel ? RELOC_STD_BITS_BASEREL_LITTLE : 0)
- | (r_jmptable ? RELOC_STD_BITS_JMPTABLE_LITTLE : 0)
- | (r_relative ? RELOC_STD_BITS_RELATIVE_LITTLE : 0)
- | (r_length << RELOC_STD_BITS_LENGTH_SH_LITTLE));
- }
- }
-#endif
- rel_ptr = (PTR) &srel;
+ /* Finish up any dynamic linking we may be doing. */
+ if (aout_backend_info (abfd)->finish_dynamic_link != NULL)
+ {
+ if (! (*aout_backend_info (abfd)->finish_dynamic_link) (abfd, info))
+ goto error_return;
+ }
- /* We have to write the addend into the object file, since
- standard a.out relocs are in place. It would be more
- reliable if we had the current contents of the file here,
- rather than assuming zeroes, but we can't read the file since
- it was opened using bfd_openw. */
- if (pr->addend != 0)
- {
- bfd_size_type size;
- bfd_reloc_status_type r;
- bfd_byte *buf;
- boolean ok;
+ /* Update the header information. */
+ abfd->symcount = obj_aout_external_sym_count (abfd);
+ exec_hdr (abfd)->a_syms = abfd->symcount * EXTERNAL_NLIST_SIZE;
+ obj_str_filepos (abfd) = obj_sym_filepos (abfd) + exec_hdr (abfd)->a_syms;
+ obj_textsec (abfd)->reloc_count =
+ exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
+ obj_datasec (abfd)->reloc_count =
+ exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
- size = bfd_get_reloc_size (howto);
- buf = (bfd_byte *) bfd_zmalloc (size);
- if (buf == (bfd_byte *) NULL)
- {
- bfd_set_error (bfd_error_no_memory);
- return false;
- }
- r = MY_relocate_contents (howto, finfo->output_bfd,
- pr->addend, buf);
- switch (r)
- {
- case bfd_reloc_ok:
- break;
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- if (! ((*finfo->info->callbacks->reloc_overflow)
- (finfo->info,
- (p->type == bfd_section_reloc_link_order
- ? bfd_section_name (finfo->output_bfd,
- pr->u.section)
- : pr->u.name),
- howto->name, pr->addend, (bfd *) NULL,
- (asection *) NULL, (bfd_vma) 0)))
- {
- free (buf);
- return false;
- }
- break;
- }
- ok = bfd_set_section_contents (finfo->output_bfd, o,
- (PTR) buf,
- (file_ptr) p->offset,
- size);
- free (buf);
- if (! ok)
- return false;
- }
+ /* Write out the string table, unless there are no symbols. */
+ if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0)
+ goto error_return;
+ if (abfd->symcount > 0)
+ {
+ if (!emit_stringtab (abfd, aout_info.strtab))
+ goto error_return;
}
else
{
- PUT_WORD (finfo->output_bfd, p->offset, erel.r_address);
-
- if (finfo->output_bfd->xvec->header_byteorder_big_p)
- {
- erel.r_index[0] = r_index >> 16;
- erel.r_index[1] = r_index >> 8;
- erel.r_index[2] = r_index;
- erel.r_type[0] =
- ((r_extern ? RELOC_EXT_BITS_EXTERN_BIG : 0)
- | (howto->type << RELOC_EXT_BITS_TYPE_SH_BIG));
- }
- else
- {
- erel.r_index[2] = r_index >> 16;
- erel.r_index[1] = r_index >> 8;
- erel.r_index[0] = r_index;
- erel.r_type[0] =
- (r_extern ? RELOC_EXT_BITS_EXTERN_LITTLE : 0)
- | (howto->type << RELOC_EXT_BITS_TYPE_SH_LITTLE);
- }
+ bfd_byte b[BYTES_IN_WORD];
- PUT_WORD (finfo->output_bfd, pr->addend, erel.r_addend);
-
- rel_ptr = (PTR) &erel;
+ memset (b, 0, BYTES_IN_WORD);
+ if (bfd_bwrite (b, (bfd_size_type) BYTES_IN_WORD, abfd) != BYTES_IN_WORD)
+ goto error_return;
}
- if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
- || (bfd_write (rel_ptr, (bfd_size_type) 1,
- obj_reloc_entry_size (finfo->output_bfd),
- finfo->output_bfd)
- != obj_reloc_entry_size (finfo->output_bfd)))
- return false;
-
- *reloff_ptr += obj_reloc_entry_size (finfo->output_bfd);
-
- /* Assert that the relocs have not run into the symbols, and that n
- the text relocs have not run into the data relocs. */
- BFD_ASSERT (*reloff_ptr <= obj_sym_filepos (finfo->output_bfd)
- && (reloff_ptr != &finfo->treloff
- || (*reloff_ptr
- <= obj_datasec (finfo->output_bfd)->rel_filepos)));
+ return TRUE;
- return true;
+ error_return:
+ if (aout_info.contents != NULL)
+ free (aout_info.contents);
+ if (aout_info.relocs != NULL)
+ free (aout_info.relocs);
+ if (aout_info.symbol_map != NULL)
+ free (aout_info.symbol_map);
+ if (aout_info.output_syms != NULL)
+ free (aout_info.output_syms);
+ if (includes_hash_initialized)
+ bfd_hash_table_free (&aout_info.includes.root);
+ return FALSE;
}
projects / deliverable / binutils-gdb.git / blobdiff