/* BFD back-end for PDP-11 a.out binaries.
- Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2001-2020 Free Software Foundation, Inc.
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
+ 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,
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. */
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
+
/* BFD backend for PDP-11, running 2.11BSD in particular.
#define ARCH_SIZE 16
#undef TARGET_IS_BIG_ENDIAN_P
-#define TARGET_PAGE_SIZE 1024
+#define TARGET_PAGE_SIZE 8192
#define SEGMENT__SIZE TARGET_PAGE_SIZE
#define DEFAULT_ARCH bfd_arch_pdp11
-#define DEFAULT_MID M_PDP11
+#define DEFAULT_MID M_PDP11
/* Do not "beautify" the CONCAT* macro args. Traditional C will not
remove whitespace added here, and thus will fail to concatenate
/* The header is not included in the text segment. */
#define N_HEADER_IN_TEXT(x) 0
-/* There are no shared libraries. */
-#define N_SHARED_LIB(x) 0
-
/* There is no flags field. */
-#define N_FLAGS(exec) 0
+#define N_FLAGS(execp) 0
-#define N_SET_FLAGS(exec, flags) do { } while (0)
-#define N_BADMAG(x) (((x).a_info != OMAGIC) && \
- ((x).a_info != NMAGIC) && \
- ((x).a_info != A_MAGIC3) && \
- ((x).a_info != A_MAGIC4) && \
- ((x).a_info != A_MAGIC5) && \
- ((x).a_info != A_MAGIC6))
+#define N_SET_FLAGS(execp, flags) do { } while (0)
+#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \
+ && N_MAGIC(x) != NMAGIC \
+ && N_MAGIC(x) != IMAGIC \
+ && N_MAGIC(x) != ZMAGIC)
+#include "sysdep.h"
+#include <limits.h>
#include "bfd.h"
#define external_exec pdp11_external_exec
struct pdp11_external_exec
- {
- bfd_byte e_info[2]; /* magic number */
- bfd_byte e_text[2]; /* length of text section in bytes */
- bfd_byte e_data[2]; /* length of data section in bytes */
- bfd_byte e_bss[2]; /* length of bss area in bytes */
- bfd_byte e_syms[2]; /* length of symbol table in bytes */
- bfd_byte e_entry[2]; /* start address */
- bfd_byte e_unused[2]; /* not used */
- bfd_byte e_flag[2]; /* relocation info stripped */
- bfd_byte e_relocatable; /* ugly hack */
- };
+{
+ bfd_byte e_info[2]; /* Magic number. */
+ bfd_byte e_text[2]; /* Length of text section in bytes. */
+ bfd_byte e_data[2]; /* Length of data section in bytes. */
+ bfd_byte e_bss[2]; /* Length of bss area in bytes. */
+ bfd_byte e_syms[2]; /* Length of symbol table in bytes. */
+ bfd_byte e_entry[2]; /* Start address. */
+ bfd_byte e_unused[2]; /* Not used. */
+ bfd_byte e_flag[2]; /* Relocation info stripped. */
+ bfd_byte e_relocatable; /* Ugly hack. */
+};
#define EXEC_BYTES_SIZE (8 * 2)
#define A_MAGIC1 OMAGIC
#define OMAGIC 0407 /* ...object file or impure executable. */
#define A_MAGIC2 NMAGIC
-#define NMAGIC 0410 /* pure executable. */
-#define ZMAGIC 0413 /* demand-paged executable. */
-#define A_MAGIC3 0411 /* separated I&D */
-#define A_MAGIC4 0405 /* overlay */
-#define A_MAGIC5 0430 /* auto-overlay (nonseparate) */
-#define A_MAGIC6 0431 /* auto-overlay (separate) */
+#define NMAGIC 0410 /* Pure executable. */
+#define ZMAGIC 0413 /* Demand-paged executable. */
+#define IMAGIC 0411 /* Separated I&D. */
+#define A_MAGIC3 IMAGIC
+#define A_MAGIC4 0405 /* Overlay. */
+#define A_MAGIC5 0430 /* Auto-overlay (nonseparate). */
+#define A_MAGIC6 0431 /* Auto-overlay (separate). */
#define QMAGIC 0
#define BMAGIC 0
#define external_nlist pdp11_external_nlist
struct pdp11_external_nlist
- {
- bfd_byte e_unused[2]; /* unused */
- bfd_byte e_strx[2]; /* index into string table of name */
- bfd_byte e_type[1]; /* type of symbol */
- bfd_byte e_ovly[1]; /* overlay number */
- bfd_byte e_value[2]; /* value of symbol */
- };
+{
+ bfd_byte e_unused[2]; /* Unused. */
+ bfd_byte e_strx[2]; /* Index into string table of name. */
+ bfd_byte e_type[1]; /* Type of symbol. */
+ bfd_byte e_ovly[1]; /* Overlay number. */
+ bfd_byte e_value[2]; /* Value of symbol. */
+};
#define EXTERNAL_NLIST_SIZE 8
#define N_TXTOFF(x) (EXEC_BYTES_SIZE)
-#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
-#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
-#define N_DRELOFF(x) (N_TRELOFF(x) + (x).a_trsize)
-#define N_SYMOFF(x) (N_DRELOFF(x) + (x).a_drsize)
-#define N_STROFF(x) (N_SYMOFF(x) + (x).a_syms)
+#define N_DATOFF(x) (N_TXTOFF(x) + (x)->a_text)
+#define N_TRELOFF(x) (N_DATOFF(x) + (x)->a_data)
+#define N_DRELOFF(x) (N_TRELOFF(x) + (x)->a_trsize)
+#define N_SYMOFF(x) (N_DRELOFF(x) + (x)->a_drsize)
+#define N_STROFF(x) (N_SYMOFF(x) + (x)->a_syms)
#define WRITE_HEADERS(abfd, execp) pdp11_aout_write_headers (abfd, execp)
-#include "sysdep.h"
#include "libbfd.h"
#include "libaout.h"
#define MY_entry_is_text_address 1
#define MY_write_object_contents MY(write_object_contents)
-static bfd_boolean MY(write_object_contents) PARAMS ((bfd *abfd));
+static bfd_boolean MY(write_object_contents) (bfd *);
#define MY_text_includes_header 1
-bfd_vma bfd_getp32 PARAMS ((const bfd_byte *));
-bfd_signed_vma bfd_getp_signed_32 PARAMS ((const bfd_byte *));
-void bfd_putp32 PARAMS ((bfd_vma, bfd_byte *));
-
#define MY_BFD_TARGET
#include "aout-target.h"
-const bfd_target MY(vec) =
-{
- TARGETNAME, /* name */
- bfd_target_aout_flavour,
- BFD_ENDIAN_LITTLE, /* target byte order (little) */
- BFD_ENDIAN_LITTLE, /* target headers byte order (little) */
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT),
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
- MY_symbol_leading_char,
- AR_PAD_CHAR, /* ar_pad_char */
- 15, /* ar_max_namelen */
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getp32, bfd_getp_signed_32, bfd_putp32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getp32, bfd_getp_signed_32, bfd_putp32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
- {_bfd_dummy_target, MY_object_p, /* bfd_check_format */
- bfd_generic_archive_p, MY_core_file_p},
- {bfd_false, MY_mkobject, /* bfd_set_format */
- _bfd_generic_mkarchive, bfd_false},
- {bfd_false, MY_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- BFD_JUMP_TABLE_GENERIC (MY),
- BFD_JUMP_TABLE_COPY (MY),
- BFD_JUMP_TABLE_CORE (MY),
- BFD_JUMP_TABLE_ARCHIVE (MY),
- BFD_JUMP_TABLE_SYMBOLS (MY),
- BFD_JUMP_TABLE_RELOCS (MY),
- BFD_JUMP_TABLE_WRITE (MY),
- BFD_JUMP_TABLE_LINK (MY),
- BFD_JUMP_TABLE_DYNAMIC (MY),
-
- /* Alternative_target */
- NULL,
-
- (PTR) MY_backend_data,
-};
-
-/* start of modified aoutx.h */
-/* BFD semi-generic back-end for a.out binaries.
- Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 1998
- Free Software Foundation, Inc.
- Written by Cygnus Support.
-
-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 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. */
-
-/*
-SECTION
- a.out backends
-
-
-DESCRIPTION
-
- BFD supports a number of different flavours of a.out format,
- though the major differences are only the sizes of the
- structures on disk, and the shape of the relocation
- information.
-
- 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.
-
- 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.
-
- The base file @file{aoutx.h} defines general mechanisms for
- reading and writing records to and from disk and various
- other methods which BFD requires. It is included by
- @file{aout32.c} and @file{aout64.c} to form the names
- <<aout_32_swap_exec_header_in>>, <<aout_64_swap_exec_header_in>>, etc.
-
- As an example, this is what goes on to make the back end for a
- sun4, from @file{aout32.c}:
-
-| #define ARCH_SIZE 32
-| #include "aoutx.h"
-
- Which exports names:
-
-| ...
-| aout_32_canonicalize_reloc
-| aout_32_find_nearest_line
-| aout_32_get_lineno
-| aout_32_get_reloc_upper_bound
-| ...
-
- from @file{sunos.c}:
-
-| #define TARGET_NAME "a.out-sunos-big"
-| #define VECNAME sunos_big_vec
-| #include "aoutf1.h"
-
- requires all the names from @file{aout32.c}, and produces the jump vector
-
-| sunos_big_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
- for which cross-debugging is not interesting. It uses the
- standard 32-bit a.out support routines, but determines the
- file offsets and addresses of the text, data, and BSS
- sections, the machine architecture and machine type, and the
- entry point address, in a host-dependent manner. Once these
- values have been determined, generic code is used to handle
- the object file.
-
- When porting it to run on a new system, you must supply:
-
-| HOST_PAGE_SIZE
-| HOST_SEGMENT_SIZE
-| HOST_MACHINE_ARCH (optional)
-| HOST_MACHINE_MACHINE (optional)
-| HOST_TEXT_START_ADDR
-| HOST_STACK_END_ADDR
-
- in the file @file{../include/sys/h-@var{XXX}.h} (for your host). These
- values, plus the structures and macros defined in @file{a.out.h} on
- your host system, will produce a BFD target that will access
- ordinary a.out files on your host. To configure a new machine
- to use @file{host-aout.c}, specify:
-
-| 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}
- to use the
- @file{@var{XXX}.mt} file (by setting "<<bfd_target=XXX>>") when your
- configuration is selected.
-
-*/
-
-/* Some assumptions:
- * Any BFD with D_PAGED set is ZMAGIC, and vice versa.
- Doesn't matter what the setting of WP_TEXT is on output, but it'll
- get set on input.
- * Any BFD with D_PAGED clear and WP_TEXT set is NMAGIC.
- * Any BFD with both flags clear is OMAGIC.
- (Just want to make these explicit, so the conditions tested in this
- file make sense if you're more familiar with a.out than with BFD.) */
-
+/* Start of modified aoutx.h. */
#define KEEPIT udata.i
-#include <string.h> /* For strchr and friends */
+#include <string.h> /* For strchr and friends. */
#include "bfd.h"
#include "sysdep.h"
#include "safe-ctype.h"
#include "bfdlink.h"
#include "libaout.h"
-/*#include "libbfd.h"*/
#include "aout/aout64.h"
#include "aout/stab_gnu.h"
#include "aout/ar.h"
#undef N_REG
#undef N_FN
#undef N_EXT
-#define N_TYPE 0x1f /* type mask */
-#define N_UNDF 0x00 /* undefined */
-#define N_ABS 0x01 /* absolute */
-#define N_TEXT 0x02 /* text segment */
-#define N_DATA 0x03 /* data segment */
-#define N_BSS 0x04 /* bss segment */
-#define N_REG 0x14 /* register symbol */
-#define N_FN 0x1f /* file name */
-
-#define N_EXT 0x20 /* external flag */
+#undef N_STAB
+#define N_TYPE 0x1f /* Type mask. */
+#define N_UNDF 0x00 /* Undefined. */
+#define N_ABS 0x01 /* Absolute. */
+#define N_TEXT 0x02 /* Text segment. */
+#define N_DATA 0x03 /* Data segment. */
+#define N_BSS 0x04 /* Bss segment. */
+#define N_REG 0x14 /* Register symbol. */
+#define N_FN 0x1f /* File name. */
+#define N_EXT 0x20 /* External flag. */
+#define N_STAB 0xc0 /* Not relevant; modified aout64.h's 0xe0 to avoid N_EXT. */
#define RELOC_SIZE 2
-struct pdp11_aout_reloc_external
-{
- bfd_byte e_reloc_entry[2];
-};
-
-#define RELFLG 0x0001 /* pc-relative flag */
-#define RTYPE 0x000e /* type mask */
-#define RIDXMASK 0xfff0 /* index mask */
+#define RELFLG 0x0001 /* PC-relative flag. */
+#define RTYPE 0x000e /* Type mask. */
+#define RIDXMASK 0xfff0 /* Index mask. */
-#define RABS 0x00 /* absolute */
-#define RTEXT 0x02 /* text */
-#define RDATA 0x04 /* data */
-#define RBSS 0x06 /* bss */
-#define REXT 0x08 /* external */
+#define RABS 0x00 /* Absolute. */
+#define RTEXT 0x02 /* Text. */
+#define RDATA 0x04 /* Data. */
+#define RBSS 0x06 /* Bss. */
+#define REXT 0x08 /* External. */
#define RINDEX(x) (((x) & 0xfff0) >> 4)
-static bfd_boolean aout_get_external_symbols PARAMS ((bfd *));
-static bfd_boolean translate_from_native_sym_flags
- PARAMS ((bfd *, aout_symbol_type *));
-static bfd_boolean translate_to_native_sym_flags
- PARAMS ((bfd *, asymbol *, struct external_nlist *));
-static void adjust_o_magic PARAMS ((bfd *, struct internal_exec *));
-static void adjust_z_magic PARAMS ((bfd *, struct internal_exec *));
-static void adjust_n_magic PARAMS ((bfd *, struct internal_exec *));
-
-static int pdp11_aout_write_headers PARAMS ((bfd *, struct internal_exec *));
-void pdp11_aout_swap_reloc_out PARAMS ((bfd *, arelent *, struct pdp11_aout_reloc_external *));
-void pdp11_aout_swap_reloc_in
-PARAMS ((bfd *, struct pdp11_aout_reloc_external *, arelent *,
- bfd_size_type, asymbol **, bfd_size_type));
-
-/*
-SUBSECTION
- Relocations
-
-DESCRIPTION
- 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.
-
-*/
-
#ifndef MY_final_link_relocate
#define MY_final_link_relocate _bfd_final_link_relocate
#endif
#define MY_relocate_contents _bfd_relocate_contents
#endif
+/* A hash table used for header files with N_BINCL entries. */
+
+struct aout_link_includes_table
+{
+ struct bfd_hash_table root;
+};
+
+/* A linked list of totals that we have found for a particular header
+ file. */
+
+struct aout_link_includes_totals
+{
+ struct aout_link_includes_totals *next;
+ bfd_vma total;
+};
+
+/* An entry in the header file hash table. */
+
+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;
+};
+
+/* 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;
+};
+
+/* Copy of the link_info.separate_code boolean to select the output format with
+ separate instruction and data spaces selected by --imagic */
+static bfd_boolean separate_i_d = FALSE;
+
reloc_howto_type howto_table_pdp11[] =
{
- /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
+ /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
HOWTO( 0, 0, 1, 16, FALSE, 0, complain_overflow_signed,0,"16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
HOWTO( 1, 0, 1, 16, TRUE, 0, complain_overflow_signed,0,"DISP16", TRUE, 0x0000ffff,0x0000ffff, FALSE),
+HOWTO( 2, 0, 2, 32, FALSE, 0, complain_overflow_signed,0,"32", TRUE, 0x0000ffff,0x0000ffff, FALSE),
};
#define TABLE_SIZE(TABLE) (sizeof(TABLE)/sizeof(TABLE[0]))
+
+static bfd_boolean aout_link_check_archive_element (bfd *, struct bfd_link_info *, struct bfd_link_hash_entry *, const char *, bfd_boolean *);
+static bfd_boolean aout_link_add_object_symbols (bfd *, struct bfd_link_info *);
+static bfd_boolean aout_link_add_symbols (bfd *, struct bfd_link_info *);
+static bfd_boolean aout_link_write_symbols (struct aout_final_link_info *, bfd *);
+
+
reloc_howto_type *
-NAME(aout,reloc_type_lookup) (abfd,code)
- bfd * abfd ATTRIBUTE_UNUSED;
- bfd_reloc_code_real_type code;
+NAME (aout, reloc_type_lookup) (bfd * abfd ATTRIBUTE_UNUSED,
+ bfd_reloc_code_real_type code)
{
switch (code)
{
return &howto_table_pdp11[0];
case BFD_RELOC_16_PCREL:
return &howto_table_pdp11[1];
+ case BFD_RELOC_32:
+ return &howto_table_pdp11[2];
default:
- return (reloc_howto_type *)NULL;
+ return NULL;
}
}
+reloc_howto_type *
+NAME (aout, reloc_name_lookup) (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < sizeof (howto_table_pdp11) / sizeof (howto_table_pdp11[0]);
+ i++)
+ if (howto_table_pdp11[i].name != NULL
+ && strcasecmp (howto_table_pdp11[i].name, r_name) == 0)
+ return &howto_table_pdp11[i];
+
+ return NULL;
+}
+
static int
-pdp11_aout_write_headers (abfd, execp)
- bfd *abfd;
- struct internal_exec *execp;
+pdp11_aout_write_headers (bfd *abfd, struct internal_exec *execp)
{
struct external_exec exec_bytes;
- bfd_size_type text_size;
- file_ptr text_end;
if (adata(abfd).magic == undecided_magic)
- NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
+ NAME (aout, adjust_sizes_and_vmas) (abfd);
execp->a_syms = bfd_get_symcount (abfd) * EXTERNAL_NLIST_SIZE;
execp->a_entry = bfd_get_start_address (abfd);
- if (obj_textsec (abfd)->reloc_count > 0 ||
- obj_datasec (abfd)->reloc_count > 0)
+ if (obj_textsec (abfd)->reloc_count > 0
+ || obj_datasec (abfd)->reloc_count > 0)
{
execp->a_trsize = execp->a_text;
execp->a_drsize = execp->a_data;
execp->a_drsize = 0;
}
- NAME(aout,swap_exec_header_out) (abfd, execp, &exec_bytes);
+ NAME (aout, swap_exec_header_out) (abfd, execp, & exec_bytes);
if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
return FALSE;
- if (bfd_bwrite ((PTR) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd)
+ if (bfd_bwrite ((void *) &exec_bytes, (bfd_size_type) EXEC_BYTES_SIZE, abfd)
!= EXEC_BYTES_SIZE)
return FALSE;
- /* Now write out reloc info, followed by syms and strings */
-
- if (bfd_get_outsymbols (abfd) != (asymbol **) NULL
+ /* Now write out reloc info, followed by syms and strings. */
+ if (bfd_get_outsymbols (abfd) != NULL
&& bfd_get_symcount (abfd) != 0)
{
- if (bfd_seek (abfd, (file_ptr) (N_SYMOFF(*execp)), SEEK_SET) != 0)
+ if (bfd_seek (abfd, (file_ptr) (N_SYMOFF (execp)), SEEK_SET) != 0)
return FALSE;
- if (! NAME(aout,write_syms) (abfd))
+ if (! NAME (aout, write_syms) (abfd))
return FALSE;
}
- if (obj_textsec (abfd)->reloc_count > 0 ||
- obj_datasec (abfd)->reloc_count > 0)
+ if (obj_textsec (abfd)->reloc_count > 0
+ || obj_datasec (abfd)->reloc_count > 0)
{
- if (bfd_seek (abfd, (file_ptr) (N_TRELOFF(*execp)), SEEK_SET) != 0)
- return FALSE;
- if (!NAME(aout,squirt_out_relocs) (abfd, obj_textsec (abfd)))
- return FALSE;
-
- if (bfd_seek (abfd, (file_ptr) (N_DRELOFF(*execp)), SEEK_SET) != 0)
- return FALSE;
- if (!NAME(aout,squirt_out_relocs) (abfd, obj_datasec (abfd)))
+ if (bfd_seek (abfd, (file_ptr) (N_TRELOFF (execp)), SEEK_SET) != 0
+ || !NAME (aout, squirt_out_relocs) (abfd, obj_textsec (abfd))
+ || bfd_seek (abfd, (file_ptr) (N_DRELOFF (execp)), SEEK_SET) != 0
+ || !NAME (aout, squirt_out_relocs) (abfd, obj_datasec (abfd)))
return FALSE;
}
file header, symbols, and relocation. */
static bfd_boolean
-MY(write_object_contents) (abfd)
- bfd *abfd;
+MY(write_object_contents) (bfd *abfd)
{
struct internal_exec *execp = exec_hdr (abfd);
will normally have been done by set_section_contents, but only if
there actually are some section contents. */
if (! abfd->output_has_begun)
- {
- bfd_size_type text_size;
- file_ptr text_end;
-
- NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
- }
+ NAME (aout, adjust_sizes_and_vmas) (abfd);
obj_reloc_entry_size (abfd) = RELOC_SIZE;
- return WRITE_HEADERS(abfd, execp);
+ return WRITE_HEADERS (abfd, execp);
}
-/*
-SUBSECTION
- Internal entry points
-
-DESCRIPTION
- @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).
-
-*/
-
-/*
-FUNCTION
- aout_@var{size}_swap_exec_header_in
-
-SYNOPSIS
- void aout_@var{size}_swap_exec_header_in,
- (bfd *abfd,
- struct external_exec *raw_bytes,
- struct internal_exec *execp);
-
-DESCRIPTION
- Swap the information in an executable header @var{raw_bytes} taken
- from a raw byte stream memory image into the internal exec header
- structure @var{execp}.
-*/
+/* Swap the information in an executable header @var{raw_bytes} taken
+ from a raw byte stream memory image into the internal exec header
+ structure "execp". */
#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 = GET_MAGIC (abfd, bytes->e_info);
execp->a_text = GET_WORD (abfd, bytes->e_text);
execp->a_drsize = execp->a_data;
}
}
-#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
-/*
-FUNCTION
- aout_@var{size}_swap_exec_header_out
-
-SYNOPSIS
- void aout_@var{size}_swap_exec_header_out
- (bfd *abfd,
- struct internal_exec *execp,
- struct external_exec *raw_bytes);
-
-DESCRIPTION
- Swap the information in an internal exec header structure
- @var{execp} into the buffer @var{raw_bytes} ready for writing to disk.
-*/
+/* Swap the information in an internal exec header structure
+ "execp" into the buffer "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. */
+ /* Now fill in fields in the raw data, from the fields in the exec struct. */
PUT_MAGIC (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_entry, bytes->e_entry);
PUT_WORD (abfd, 0, bytes->e_unused);
- if ((execp->a_trsize == 0 || execp->a_text == 0) &&
- (execp->a_drsize == 0 || execp->a_data == 0))
- PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag);
- else if (execp->a_trsize == execp->a_text &&
- execp->a_drsize == execp->a_data)
- PUT_WORD (abfd, 0, bytes->e_flag);
+ if ((execp->a_trsize == 0 || execp->a_text == 0)
+ && (execp->a_drsize == 0 || execp->a_data == 0))
+ PUT_WORD (abfd, A_FLAG_RELOC_STRIPPED, bytes->e_flag);
+ else if (execp->a_trsize == execp->a_text
+ && execp->a_drsize == execp->a_data)
+ PUT_WORD (abfd, 0, bytes->e_flag);
else
{
- /* TODO: print a proper warning message */
+ /* TODO: print a proper warning message. */
fprintf (stderr, "BFD:%s:%d: internal error\n", __FILE__, __LINE__);
PUT_WORD (abfd, 0, bytes->e_flag);
}
/* Make all the section for an a.out file. */
bfd_boolean
-NAME(aout,make_sections) (abfd)
- bfd *abfd;
+NAME (aout, make_sections) (bfd *abfd)
{
- if (obj_textsec (abfd) == (asection *) NULL
- && bfd_make_section (abfd, ".text") == (asection *) NULL)
+ if (obj_textsec (abfd) == NULL && bfd_make_section (abfd, ".text") == NULL)
return FALSE;
- if (obj_datasec (abfd) == (asection *) NULL
- && bfd_make_section (abfd, ".data") == (asection *) NULL)
+ if (obj_datasec (abfd) == NULL && bfd_make_section (abfd, ".data") == NULL)
return FALSE;
- if (obj_bsssec (abfd) == (asection *) NULL
- && bfd_make_section (abfd, ".bss") == (asection *) NULL)
+ if (obj_bsssec (abfd) == NULL && bfd_make_section (abfd, ".bss") == NULL)
return FALSE;
return TRUE;
}
-/*
-FUNCTION
- aout_@var{size}_some_aout_object_p
-
-SYNOPSIS
- const bfd_target *aout_@var{size}_some_aout_object_p
- (bfd *abfd,
- const bfd_target *(*callback_to_real_object_p)());
-
-DESCRIPTION
- Some a.out variant thinks that the file open in @var{abfd}
- checking is an a.out file. Do some more checking, and set up
- for access if it really is. Call back to the calling
- environment's "finish up" function just before returning, to
- handle any last-minute setup.
-*/
-
-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 *));
+/* Some a.out variant thinks that the file open in ABFD
+ checking is an a.out file. Do some more checking, and set up
+ for access if it really is. Call back to the calling
+ environment's "finish up" function just before returning, to
+ handle any last-minute setup. */
+
+bfd_cleanup
+NAME (aout, some_aout_object_p) (bfd *abfd,
+ struct internal_exec *execp,
+ bfd_cleanup (*callback_to_real_object_p) (bfd *))
{
struct aout_data_struct *rawptr, *oldrawptr;
- const bfd_target *result;
- bfd_size_type amt = sizeof (struct aout_data_struct);
+ bfd_cleanup cleanup;
+ size_t amt = sizeof (struct aout_data_struct);
- rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
+ rawptr = bfd_zalloc (abfd, amt);
if (rawptr == NULL)
return 0;
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 */
+ *(abfd->tdata.aout_data->a.hdr) = *execp; /* Copy in the internal_exec struct. */
execp = abfd->tdata.aout_data->a.hdr;
- /* Set the file 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)
- {
- abfd->flags |= D_PAGED | WP_TEXT;
- adata (abfd).magic = z_magic;
- }
- else if (N_MAGIC (*execp) == QMAGIC)
+ if (N_MAGIC (execp) == ZMAGIC)
{
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)
adata (abfd).magic = o_magic;
+ else if (N_MAGIC (execp) == IMAGIC)
+ adata (abfd).magic = i_magic;
else
{
/* Should have been checked with N_BADMAG before this routine
abort ();
}
- bfd_get_start_address (abfd) = execp->a_entry;
+ abfd->start_address = execp->a_entry;
- obj_aout_symbols (abfd) = (aout_symbol_type *)NULL;
- bfd_get_symcount (abfd) = execp->a_syms / sizeof (struct external_nlist);
+ obj_aout_symbols (abfd) = NULL;
+ abfd->symcount = execp->a_syms / sizeof (struct external_nlist);
/* The default relocation entry size is that of traditional V7 Unix. */
obj_reloc_entry_size (abfd) = RELOC_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))
+ if (! NAME (aout, make_sections) (abfd))
return NULL;
- 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
/* Call back to the format-dependent code to fill in the rest of the
fields and do any further cleanup. Things that should be filled
in by the callback: */
-
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. */
abfd->obj_arch = bfd_arch_obscure;
adata(abfd)->segment_size = SEGMENT_SIZE;
adata(abfd)->exec_bytes_size = EXEC_BYTES_SIZE;
- return abfd->xvec;
+ return _bfd_no_cleanup;
/* The architecture is encoded in various ways in various a.out variants,
or is not encoded at all in some of them. The relocation size depends
Formats such as b.out, which have additional fields in the a.out
header, should cope with them in this callback as well. */
-#endif /* DOCUMENTATION */
+#endif /* DOCUMENTATION */
- result = (*callback_to_real_object_p)(abfd);
+ cleanup = (*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
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)->_raw_size))
+ || (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. */
+ 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)
}
#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
+ if (!cleanup)
{
free (rawptr);
abfd->tdata.aout_data = oldrawptr;
}
- return result;
+ return cleanup;
}
-/*
-FUNCTION
- aout_@var{size}_mkobject
-
-SYNOPSIS
- bfd_boolean aout_@var{size}_mkobject, (bfd *abfd);
-
-DESCRIPTION
- Initialize BFD @var{abfd} for use with a.out files.
-*/
+/* Initialize ABFD for use with a.out files. */
bfd_boolean
-NAME(aout,mkobject) (abfd)
- bfd *abfd;
+NAME (aout, mkobject) (bfd *abfd)
{
struct aout_data_struct *rawptr;
- bfd_size_type amt = sizeof (struct aout_data_struct);
+ size_t amt = sizeof (struct aout_data_struct);
bfd_set_error (bfd_error_system_call);
- /* Use an intermediate variable for clarity */
- rawptr = (struct aout_data_struct *) bfd_zalloc (abfd, amt);
+ /* Use an intermediate variable for clarity. */
+ rawptr = 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;
}
+/* Keep track of machine architecture and machine type for
+ a.out's. Return the <<machine_type>> for a particular
+ architecture and machine, or <<M_UNKNOWN>> if that exact architecture
+ and machine can't be represented in a.out format.
-/*
-FUNCTION
- aout_@var{size}_machine_type
-
-SYNOPSIS
- enum machine_type aout_@var{size}_machine_type
- (enum bfd_architecture arch,
- unsigned long machine));
-
-DESCRIPTION
- Keep track of machine architecture and machine type for
- a.out's. Return the <<machine_type>> for a particular
- architecture and machine, or <<M_UNKNOWN>> if that exact architecture
- and machine can't be represented in a.out format.
-
- If the architecture is understood, machine type 0 (default)
- is always understood.
-*/
+ If the architecture is understood, machine type 0 (default)
+ is always understood. */
enum machine_type
-NAME(aout,machine_type) (arch, machine, unknown)
- enum bfd_architecture arch;
- unsigned long machine;
- bfd_boolean *unknown;
+NAME (aout, machine_type) (enum bfd_architecture arch,
+ unsigned long machine,
+ bfd_boolean *unknown)
{
enum machine_type arch_flags;
arch_flags = M_SPARCLET;
break;
- case bfd_arch_m68k:
- switch (machine)
- {
- case 0: arch_flags = M_68010; break;
- case bfd_mach_m68000: arch_flags = M_UNKNOWN; *unknown = FALSE; break;
- case bfd_mach_m68010: arch_flags = M_68010; break;
- case bfd_mach_m68020: arch_flags = M_68020; break;
- default: arch_flags = M_UNKNOWN; break;
- }
- break;
-
case bfd_arch_i386:
if (machine == 0
|| machine == bfd_mach_i386_i386
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 0:
case 2000:
case bfd_mach_mips3000:
- arch_flags = M_MIPS1;
+ arch_flags = M_MIPS1;
break;
- case bfd_mach_mips4000: /* mips3 */
+ case bfd_mach_mips4000: /* MIPS3 */
case bfd_mach_mips4400:
- case bfd_mach_mips8000: /* mips4 */
- case bfd_mach_mips6000: /* real mips2: */
- arch_flags = M_MIPS2;
+ case bfd_mach_mips8000: /* MIPS4 */
+ case bfd_mach_mips6000: /* Real MIPS2: */
+ arch_flags = M_MIPS2;
break;
default:
arch_flags = M_UNKNOWN;
case bfd_arch_ns32k:
switch (machine)
{
- case 0: arch_flags = M_NS32532; break;
+ 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;
return arch_flags;
}
-
-/*
-FUNCTION
- aout_@var{size}_set_arch_mach
-
-SYNOPSIS
- bfd_boolean aout_@var{size}_set_arch_mach,
- (bfd *,
- enum bfd_architecture arch,
- unsigned long machine));
-
-DESCRIPTION
- Set the architecture and the machine of the BFD @var{abfd} to the
- values @var{arch} and @var{machine}. Verify that @var{abfd}'s format
- can support the architecture required.
-*/
+/* Set the architecture and the machine of the ABFD to the
+ values ARCH and MACHINE. Verify that @ABFD's format
+ can support the architecture required. */
bfd_boolean
-NAME(aout,set_arch_mach) (abfd, arch, machine)
- bfd *abfd;
- enum bfd_architecture arch;
- unsigned long machine;
+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;
{
bfd_boolean unknown;
- NAME(aout,machine_type) (arch, machine, &unknown);
+ NAME (aout, machine_type) (arch, machine, &unknown);
if (unknown)
return FALSE;
}
}
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;
+ asection *text = obj_textsec (abfd);
+ asection *data = obj_datasec (abfd);
+ asection *bss = obj_bsssec (abfd);
/* Text. */
- obj_textsec (abfd)->filepos = pos;
- if (! obj_textsec (abfd)->user_set_vma)
- obj_textsec (abfd)->vma = vma;
+ text->filepos = pos;
+ if (!text->user_set_vma)
+ text->vma = vma;
else
- vma = obj_textsec (abfd)->vma;
+ vma = text->vma;
- pos += obj_textsec (abfd)->_raw_size;
- vma += obj_textsec (abfd)->_raw_size;
+ pos += execp->a_text;
+ vma += execp->a_text;
/* Data. */
- if (!obj_datasec (abfd)->user_set_vma)
+ if (!data->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;
pos += pad;
vma += pad;
- obj_datasec (abfd)->vma = vma;
+ data->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 = data->vma;
+ execp->a_text += pad;
+
+ data->filepos = pos;
+ pos += data->size;
+ vma += data->size;
/* BSS. */
- if (! obj_bsssec (abfd)->user_set_vma)
+ if (!bss->user_set_vma)
{
-#if 0
- pad = align_power (vma, obj_bsssec (abfd)->alignment_power) - vma;
-#endif
- obj_datasec (abfd)->_raw_size += pad;
pos += pad;
vma += pad;
- obj_bsssec (abfd)->vma = vma;
+ bss->vma = vma;
}
- else
+ else if (data->size > 0 || bss->size > 0) /* PR25677: for objcopy --extract-symbol */
{
/* 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;
- pos += pad;
- }
+ .data section plus the size of the .data section. We may
+ need to add padding bytes to make this true. */
+ pad = bss->vma - vma;
+ if (pad < 0)
+ pad = 0;
+ pos += pad;
}
- obj_bsssec (abfd)->filepos = pos;
+ execp->a_data = data->size + pad;
+ bss->filepos = pos;
+ execp->a_bss = bss->size;
- /* 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);
+ 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. */
+ /* TRUE if text includes exec header. */
+ bfd_boolean ztih;
+ asection *text = obj_textsec (abfd);
+ asection *data = obj_datasec (abfd);
+ asection *bss = obj_bsssec (abfd);
abdp = aout_backend_info (abfd);
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)
+ text->filepos = (ztih
+ ? adata (abfd).exec_bytes_size
+ : adata (abfd).zmagic_disk_block_size);
+ if (!text->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));
+ text->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)
+ text_pad = ((text->filepos - text->vma)
& (adata (abfd).page_size - 1));
else
- text_pad = ((- obj_textsec (abfd)->vma)
+ text_pad = (-text->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 = text->filepos + execp->a_text;
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 = execp->a_text;
text_pad += BFD_ALIGN (text_end, adata (abfd).page_size) - text_end;
- text_end += obj_textsec (abfd)->filepos;
+ text_end += text->filepos;
}
-
- obj_textsec (abfd)->_raw_size += text_pad;
- text_end += text_pad;
+ execp->a_text += text_pad;
/* Data. */
- if (!obj_datasec(abfd)->user_set_vma)
+ if (!data->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 = text->vma + execp->a_text;
+ data->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;
+ text_pad = data->vma - (text->vma + execp->a_text);
+ /* Only pad the text section if the data
+ section is going to be placed after it. */
+ if (text_pad > 0)
+ execp->a_text += text_pad;
}
- obj_datasec (abfd)->filepos = (obj_textsec (abfd)->filepos
- + obj_textsec (abfd)->_raw_size);
+ data->filepos = text->filepos + execp->a_text;
/* Fix up exec header while we're at it. */
- execp->a_text = obj_textsec(abfd)->_raw_size;
if (ztih && (!abdp || (abdp && !abdp->exec_header_not_counted)))
- execp->a_text += adata(abfd).exec_bytes_size;
- if (obj_aout_subformat (abfd) == q_magic_format)
- N_SET_MAGIC (*execp, QMAGIC);
- else
- N_SET_MAGIC (*execp, ZMAGIC);
+ execp->a_text += adata (abfd).exec_bytes_size;
+ 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;
+ execp->a_data = align_power (data->size, bss->alignment_power);
+ execp->a_data = BFD_ALIGN (execp->a_data, adata (abfd).page_size);
+ data_pad = execp->a_data - data->size;
/* BSS. */
- if (!obj_bsssec(abfd)->user_set_vma)
- obj_bsssec(abfd)->vma = (obj_datasec(abfd)->vma
- + obj_datasec(abfd)->_raw_size);
+ if (!bss->user_set_vma)
+ bss->vma = data->vma + execp->a_data;
/* 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 (bss->vma, bss->alignment_power) == data->vma + execp->a_data)
+ execp->a_bss = data_pad > bss->size ? 0 : bss->size - data_pad;
+ else
+ execp->a_bss = bss->size;
+}
+
+static void
+adjust_n_magic (bfd *abfd, struct internal_exec *execp)
+{
+ file_ptr pos = adata (abfd).exec_bytes_size;
+ bfd_vma vma = 0;
+ int pad;
+ asection *text = obj_textsec (abfd);
+ asection *data = obj_datasec (abfd);
+ asection *bss = obj_bsssec (abfd);
+
+ /* Text. */
+ text->filepos = pos;
+ if (!text->user_set_vma)
+ text->vma = vma;
+ else
+ vma = text->vma;
+ pos += execp->a_text;
+ vma += execp->a_text;
+
+ /* Data. */
+ data->filepos = pos;
+ if (!data->user_set_vma)
+ data->vma = BFD_ALIGN (vma, adata (abfd).segment_size);
+ vma = data->vma;
+
+ /* Since BSS follows data immediately, see if it needs alignment. */
+ vma += data->size;
+ pad = align_power (vma, bss->alignment_power) - vma;
+ execp->a_data = data->size + pad;
+ pos += execp->a_data;
+
+ /* BSS. */
+ if (!bss->user_set_vma)
+ bss->vma = vma;
else
- execp->a_bss = obj_bsssec(abfd)->_raw_size;
+ vma = bss->vma;
+
+ /* Fix up exec header. */
+ execp->a_bss = bss->size;
+ N_SET_MAGIC (execp, NMAGIC);
}
static void
-adjust_n_magic (abfd, execp)
- bfd *abfd;
- struct internal_exec *execp;
+adjust_i_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;
+ asection *text = obj_textsec (abfd);
+ asection *data = obj_datasec (abfd);
+ asection *bss = obj_bsssec (abfd);
/* Text. */
- obj_textsec(abfd)->filepos = pos;
- if (!obj_textsec(abfd)->user_set_vma)
- obj_textsec(abfd)->vma = vma;
+ text->filepos = pos;
+ if (!text->user_set_vma)
+ text->vma = vma;
else
- vma = obj_textsec(abfd)->vma;
- pos += obj_textsec(abfd)->_raw_size;
- vma += obj_textsec(abfd)->_raw_size;
+ vma = text->vma;
+ pos += execp->a_text;
/* 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;
+ data->filepos = pos;
+ if (!data->user_set_vma)
+ data->vma = 0;
+ vma = data->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 += data->size;
+ pad = align_power (vma, bss->alignment_power) - vma;
+ execp->a_data = data->size + pad;
+ pos += execp->a_data;
/* BSS. */
- if (!obj_bsssec(abfd)->user_set_vma)
- obj_bsssec(abfd)->vma = vma;
+ if (!bss->user_set_vma)
+ bss->vma = vma;
else
- vma = obj_bsssec(abfd)->vma;
+ vma = bss->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_bss = bss->size;
+ N_SET_MAGIC (execp, IMAGIC);
}
bfd_boolean
-NAME(aout,adjust_sizes_and_vmas) (abfd, text_size, text_end)
- bfd *abfd;
- bfd_size_type *text_size;
- file_ptr * text_end ATTRIBUTE_UNUSED;
+NAME (aout, adjust_sizes_and_vmas) (bfd *abfd)
{
struct internal_exec *execp = exec_hdr (abfd);
- if (! NAME(aout,make_sections) (abfd))
+ if (! NAME (aout, make_sections) (abfd))
return FALSE;
- if (adata(abfd).magic != undecided_magic)
+ 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);
+ execp->a_text = 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
I understand it better now, but I haven't time to do the cleanup this
minute. */
- if (abfd->flags & WP_TEXT)
- adata(abfd).magic = n_magic;
+ if (separate_i_d)
+ adata (abfd).magic = i_magic;
+ else if (abfd->flags & WP_TEXT)
+ 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 i_magic: str = "IMAGIC"; 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);
case n_magic:
adjust_n_magic (abfd, execp);
break;
+ case i_magic:
+ adjust_i_magic (abfd, execp);
+ break;
default:
abort ();
}
#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, execp->a_text,
+ obj_textsec (abfd)->filepos,
+ obj_datasec (abfd)->vma, execp->a_data,
+ obj_datasec (abfd)->filepos,
+ obj_bsssec (abfd)->vma, execp->a_bss);
#endif
return TRUE;
}
-/*
-FUNCTION
- aout_@var{size}_new_section_hook
-
-SYNOPSIS
- bfd_boolean aout_@var{size}_new_section_hook,
- (bfd *abfd,
- asection *newsect));
+/* Called by the BFD in response to a bfd_make_section request. */
-DESCRIPTION
- Called by the BFD in response to a @code{bfd_make_section}
- request.
-*/
bfd_boolean
-NAME(aout,new_section_hook) (abfd, newsect)
- bfd *abfd;
- asection *newsect;
+NAME (aout, new_section_hook) (bfd *abfd, asection *newsect)
{
- /* align to double at least */
+ /* 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"))
+ && !strcmp (newsect->name, ".text"))
{
obj_textsec(abfd)= newsect;
newsect->target_index = N_TEXT;
- return TRUE;
}
+ 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;
+ }
+ }
- 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;
- }
- }
-
- /* We allow more than three sections internally */
- return TRUE;
+ /* We allow more than three sections internally. */
+ return _bfd_generic_new_section_hook (abfd, newsect);
}
bfd_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;
+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))
+ if (! NAME (aout, adjust_sizes_and_vmas) (abfd))
return FALSE;
}
if (section != obj_textsec (abfd)
&& section != obj_datasec (abfd))
{
- (*_bfd_error_handler)
- ("%s: can not represent section `%s' in a.out object file format",
- bfd_get_filename (abfd), bfd_get_section_name (abfd, section));
+ _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;
}
/* Read the external symbols from an a.out file. */
static bfd_boolean
-aout_get_external_symbols (abfd)
- bfd *abfd;
+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;
count = exec_hdr (abfd)->a_syms / EXTERNAL_NLIST_SIZE;
+ /* PR 17512: file: 011f5a08. */
+ if (count == 0)
+ {
+ obj_aout_external_syms (abfd) = NULL;
+ obj_aout_external_sym_count (abfd) = count;
+ return TRUE;
+ }
+
#ifdef USE_MMAP
if (! bfd_get_file_window (abfd, obj_sym_filepos (abfd),
exec_hdr (abfd)->a_syms,
/* We allocate using malloc to make the values easy to free
later on. If we put them on the objalloc it might not be
possible to free them. */
- syms = (struct external_nlist *) bfd_malloc (count * EXTERNAL_NLIST_SIZE);
- if (syms == (struct external_nlist *) NULL && count != 0)
+ if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0)
+ return FALSE;
+ syms = (struct external_nlist *)
+ _bfd_malloc_and_read (abfd, count * EXTERNAL_NLIST_SIZE,
+ count * EXTERNAL_NLIST_SIZE);
+ if (syms == NULL)
return FALSE;
-
- if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0
- || (bfd_bread (syms, exec_hdr (abfd)->a_syms, abfd)
- != exec_hdr (abfd)->a_syms))
- {
- free (syms);
- return FALSE;
- }
#endif
obj_aout_external_syms (abfd) = syms;
unsigned char string_chars[BYTES_IN_LONG];
bfd_size_type stringsize;
char *strings;
+ bfd_size_type amt = BYTES_IN_LONG;
/* Get the size of the strings. */
if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
- || (bfd_bread ((PTR) string_chars, (bfd_size_type) BYTES_IN_LONG,
- abfd) != BYTES_IN_LONG))
+ || bfd_bread ((void *) string_chars, amt, abfd) != amt)
return FALSE;
stringsize = H_GET_32 (abfd, string_chars);
+ if (stringsize == 0)
+ stringsize = 1;
+ else if (stringsize < BYTES_IN_LONG
+ || (size_t) stringsize != stringsize)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
#ifdef USE_MMAP
- if (! bfd_get_file_window (abfd, obj_str_filepos (abfd), stringsize,
- &obj_aout_string_window (abfd), TRUE))
- return FALSE;
- strings = (char *) obj_aout_string_window (abfd).data;
-#else
- strings = (char *) bfd_malloc (stringsize + 1);
- if (strings == NULL)
- return FALSE;
-
- /* Skip space for the string count in the buffer for convenience
- when using indexes. */
- if (bfd_bread (strings + 4, stringsize - 4, abfd) != stringsize - 4)
+ if (stringsize >= BYTES_IN_LONG)
{
- 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_LONG)
+ {
+ /* Keep the string count in the buffer for convenience
+ when indexing with e_strx. */
+ amt = stringsize - BYTES_IN_LONG;
+ if (bfd_bread (strings + BYTES_IN_LONG, amt, abfd) != amt)
+ {
+ free (strings);
+ return FALSE;
+ }
+ }
+ }
/* Ensure that a zero index yields an empty string. */
strings[0] = '\0';
- strings[stringsize - 1] = 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;
symbol->flags and symbol->section, and adjusting symbol->value. */
static bfd_boolean
-translate_from_native_sym_flags (abfd, cache_ptr)
- bfd *abfd;
- aout_symbol_type *cache_ptr;
+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. */
/* Set the fields of SYM_POINTER according to CACHE_PTR. */
static bfd_boolean
-translate_to_native_sym_flags (abfd, cache_ptr, sym_pointer)
- bfd *abfd;
- asymbol *cache_ptr;
- struct external_nlist *sym_pointer;
+translate_to_native_sym_flags (bfd *abfd,
+ asymbol *cache_ptr,
+ struct external_nlist *sym_pointer)
{
bfd_vma value = cache_ptr->value;
asection *sec;
to another. */
sym_pointer->e_type[0] &= ~N_TYPE;
- sec = bfd_get_section (cache_ptr);
+ sec = bfd_asymbol_section (cache_ptr);
off = 0;
if (sec == NULL)
{
/* This case occurs, e.g., for the *DEBUG* section of a COFF
file. */
- (*_bfd_error_handler)
- ("%s: can not represent section for symbol `%s' in a.out object file format",
- bfd_archive_filename (abfd),
- cache_ptr->name != NULL ? cache_ptr->name : "*unknown*");
+ _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;
}
sym_pointer->e_type[0] = N_UNDF | N_EXT;
else
{
- (*_bfd_error_handler)
- ("%s: can not represent section `%s' in a.out object file format",
- bfd_archive_filename (abfd), bfd_get_section_name (abfd, sec));
+ _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;
}
else if ((cache_ptr->flags & BSF_GLOBAL) != 0)
sym_pointer->e_type[0] |= N_EXT;
-#if 0
- if ((cache_ptr->flags & BSF_CONSTRUCTOR) != 0)
- {
- int type = ((aout_symbol_type *) cache_ptr)->type;
-
-
- switch (type)
- {
- case N_ABS: type = N_SETA; break;
- case N_TEXT: type = N_SETT; break;
- case N_DATA: type = N_SETD; break;
- case N_BSS: type = N_SETB; break;
- }
- sym_pointer->e_type[0] = type;
- }
-#endif
-
-#if 0
- if ((cache_ptr->flags & BSF_WEAK) != 0)
- {
- int type;
-
- switch (sym_pointer->e_type[0] & N_TYPE)
- {
- default:
- case N_ABS: type = N_WEAKA; break;
- case N_TEXT: type = N_WEAKT; break;
- case N_DATA: type = N_WEAKD; break;
- case N_BSS: type = N_WEAKB; break;
- case N_UNDF: type = N_WEAKU; break;
- }
- sym_pointer->e_type[0] = type;
- }
-#endif
-
PUT_WORD(abfd, value, sym_pointer->e_value);
return TRUE;
/* Native-level interface to symbols. */
asymbol *
-NAME(aout,make_empty_symbol) (abfd)
- bfd *abfd;
+NAME (aout, make_empty_symbol) (bfd *abfd)
{
- bfd_size_type amt = sizeof (aout_symbol_type);
- aout_symbol_type *new = (aout_symbol_type *) bfd_zalloc (abfd, amt);
- if (!new)
+ size_t amt = sizeof (aout_symbol_type);
+ aout_symbol_type *new_symbol_type = bfd_zalloc (abfd, amt);
+
+ if (!new_symbol_type)
return NULL;
- new->symbol.the_bfd = abfd;
+ new_symbol_type->symbol.the_bfd = abfd;
- return &new->symbol;
+ return &new_symbol_type->symbol;
}
/* Translate a set of internal symbols into external symbols. */
bfd_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;
- bfd_boolean dynamic;
+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);
- /* TODO: is 0 a safe value here? */
+ in->symbol.value = GET_WORD (abfd, ext->e_value);
+ /* TODO: is 0 a safe value here? */
in->desc = 0;
in->other = 0;
in->type = H_GET_8 (abfd, ext->e_type);
/* 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. */
bfd_boolean
-NAME(aout,slurp_symbol_table) (abfd)
- bfd *abfd;
+NAME (aout, slurp_symbol_table) (bfd *abfd)
{
struct external_nlist *old_external_syms;
aout_symbol_type *cached;
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)
+ /* 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);
cached_size = obj_aout_external_sym_count (abfd);
cached_size *= sizeof (aout_symbol_type);
- cached = (aout_symbol_type *) bfd_zmalloc (cached_size);
+ cached = bfd_zmalloc (cached_size);
if (cached == NULL && cached_size != 0)
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),
return FALSE;
}
- bfd_get_symcount (abfd) = obj_aout_external_sym_count (abfd);
+ abfd->symcount = obj_aout_external_sym_count (abfd);
obj_aout_symbols (abfd) = cached;
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));
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 *, bfd_boolean));
-static bfd_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;
- bfd_boolean copy;
+static inline bfd_size_type
+add_to_stringtab (bfd *abfd,
+ struct bfd_strtab_hash *tab,
+ const char *str,
+ bfd_boolean copy)
{
bfd_boolean hash;
- bfd_size_type index;
+ bfd_size_type str_index;
/* An index of 0 always means the empty string. */
if (str == 0 || *str == '\0')
if ((abfd->flags & BFD_TRADITIONAL_FORMAT) != 0)
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_LONG to the return value to account for the
- space taken up by the string table size. */
- index += BYTES_IN_LONG;
- }
+ if (str_index != (bfd_size_type) -1)
+ /* Add BYTES_IN_LONG to the return value to account for the
+ space taken up by the string table size. */
+ str_index += BYTES_IN_LONG;
- return index;
+ return str_index;
}
/* Write out a strtab. ABFD is already at the right location in the
file. */
static bfd_boolean
-emit_stringtab (abfd, tab)
- register bfd *abfd;
- struct bfd_strtab_hash *tab;
+emit_stringtab (bfd *abfd, struct bfd_strtab_hash *tab)
{
bfd_byte buffer[BYTES_IN_LONG];
/* The string table starts with the size. */
H_PUT_32 (abfd, _bfd_stringtab_size (tab) + BYTES_IN_LONG, buffer);
- if (bfd_bwrite ((PTR) buffer, (bfd_size_type) BYTES_IN_LONG, abfd)
+ if (bfd_bwrite ((void *) buffer, (bfd_size_type) BYTES_IN_LONG, abfd)
!= BYTES_IN_LONG)
return FALSE;
}
\f
bfd_boolean
-NAME(aout,write_syms) (abfd)
- bfd *abfd;
+NAME (aout, write_syms) (bfd *abfd)
{
unsigned int count ;
asymbol **generic = bfd_get_outsymbols (abfd);
H_PUT_8 (abfd, 0, nsp.e_ovly);
- if (bfd_bwrite ((PTR)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd)
+ if (bfd_bwrite ((void *)&nsp, (bfd_size_type) EXTERNAL_NLIST_SIZE, abfd)
!= EXTERNAL_NLIST_SIZE)
goto error_return;
return TRUE;
-error_return:
+ error_return:
_bfd_stringtab_free (strtab);
return FALSE;
}
\f
long
-NAME(aout,canonicalize_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 extended relocation information to a file in target byte order. */
-/* Extended stuff */
-/* Output extended relocation information to a file in target byte order. */
-
-void
-pdp11_aout_swap_reloc_out (abfd, g, natptr)
- bfd *abfd;
- arelent *g;
- register struct pdp11_aout_reloc_external *natptr;
+static void
+pdp11_aout_swap_reloc_out (bfd *abfd, arelent *g, bfd_byte *natptr)
{
int r_index;
int r_pcrel;
else
r_index = (*(g->sym_ptr_ptr))->KEEPIT;
-#if 0
- if (bfd_is_abs_section (bfd_get_section (sym)))
- {
- r_extern = 0;
- r_index = N_ABS;
- r_type = RABS;
- }
- else if ((sym->flags & BSF_SECTION_SYM) == 0)
- {
- if (bfd_is_und_section (bfd_get_section (sym))
- || (sym->flags & BSF_GLOBAL) != 0)
- r_extern = 1;
- else
- r_extern = 0;
- r_index = (*(g->sym_ptr_ptr))->KEEPIT;
- }
- else
- {
- /* Just an ordinary section */
- r_extern = 0;
- r_index = output_section->target_index;
- }
-#endif
-
reloc_entry = r_index << 4 | r_type | r_pcrel;
- PUT_WORD (abfd, reloc_entry, natptr->e_reloc_entry);
+ PUT_WORD (abfd, reloc_entry, natptr);
}
/* BFD deals internally with all things based from the section they're
to give the true offset from the section */
-#define MOVE_ADDRESS(ad) \
- if (r_extern) \
+#define MOVE_ADDRESS(ad) \
+ if (r_extern) \
{ \
/* Undefined symbol. */ \
cache_ptr->sym_ptr_ptr = symbols + r_index; \
} \
else \
{ \
- /* Defined, section relative. replace symbol with pointer to \
+ /* Defined, section relative. replace symbol with pointer to \
symbol which points to section. */ \
switch (r_index) \
{ \
} \
}
-void
-pdp11_aout_swap_reloc_in (abfd, bytes, cache_ptr, offset,
- symbols, symcount)
- bfd *abfd;
- struct pdp11_aout_reloc_external *bytes;
- arelent *cache_ptr;
- bfd_size_type offset;
- asymbol **symbols;
- bfd_size_type symcount;
+static void
+pdp11_aout_swap_reloc_in (bfd * abfd,
+ bfd_byte * bytes,
+ arelent * cache_ptr,
+ bfd_size_type offset,
+ asymbol ** symbols,
+ bfd_size_type symcount)
{
struct aoutdata *su = &(abfd->tdata.aout_data->a);
unsigned int r_index;
int r_extern;
int r_pcrel;
- reloc_entry = GET_WORD (abfd, (PTR)bytes);
+ reloc_entry = GET_WORD (abfd, (void *) bytes);
r_pcrel = reloc_entry & RELFLG;
local or global. */
r_extern = (reloc_entry & RTYPE) == REXT;
- 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;
}
/* Read and swap the relocs for a section. */
bfd_boolean
-NAME(aout,slurp_reloc_table) (abfd, asect, symbols)
- bfd *abfd;
- sec_ptr asect;
- asymbol **symbols;
+NAME (aout, slurp_reloc_table) (bfd *abfd, sec_ptr asect, asymbol **symbols)
{
- struct pdp11_aout_reloc_external *rptr;
+ bfd_byte *rptr;
bfd_size_type count;
bfd_size_type reloc_size;
- PTR relocs;
+ void * relocs;
arelent *reloc_cache;
size_t each_size;
unsigned int counter = 0;
if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0)
return FALSE;
-
- each_size = obj_reloc_entry_size (abfd);
-
- relocs = bfd_malloc (reloc_size);
+ relocs = _bfd_malloc_and_read (abfd, reloc_size, reloc_size);
if (relocs == NULL && reloc_size != 0)
return FALSE;
- if (bfd_bread (relocs, reloc_size, abfd) != reloc_size)
- {
- free (relocs);
- return FALSE;
- }
-
+ each_size = obj_reloc_entry_size (abfd);
count = reloc_size / each_size;
- /* Count the number of NON-ZERO relocs, this is the count we want. */
+ /* Count the number of NON-ZERO relocs, this is the count we want. */
{
unsigned int real_count = 0;
count = real_count;
}
- reloc_cache = (arelent *) bfd_zmalloc (count * sizeof (arelent));
+ reloc_cache = bfd_zmalloc (count * sizeof (arelent));
if (reloc_cache == NULL && count != 0)
return FALSE;
cache_ptr = reloc_cache;
- rptr = (struct pdp11_aout_reloc_external *) relocs;
+ rptr = relocs;
for (counter = 0;
counter < count;
- counter++, ((char *)rptr) += RELOC_SIZE, cache_ptr++)
+ counter++, rptr += RELOC_SIZE, cache_ptr++)
{
- while (GET_WORD (abfd, (PTR)rptr) == 0)
+ while (GET_WORD (abfd, (void *) rptr) == 0)
{
- rptr =
- (struct pdp11_aout_reloc_external *)
- ((char *) rptr + RELOC_SIZE);
+ rptr += RELOC_SIZE;
if ((char *) rptr >= (char *) relocs + reloc_size)
goto done;
}
}
done:
/* Just in case, if rptr >= relocs + reloc_size should happen
- too early. */
+ too early. */
BFD_ASSERT (counter == count);
free (relocs);
/* Write out a relocation section into an object file. */
bfd_boolean
-NAME(aout,squirt_out_relocs) (abfd, section)
- bfd *abfd;
- asection *section;
+NAME (aout, squirt_out_relocs) (bfd *abfd, asection *section)
{
arelent **generic;
unsigned char *native;
unsigned int count = section->reloc_count;
bfd_size_type natsize;
-#if 0
- /* If we're writing an .o file, we must write
- relocation information, even if there is none. */
- if ((count == 0 || section->orelocation == NULL) &&
- <writing_executable>)
- return TRUE;
-#endif
-
- natsize = bfd_get_section_size_before_reloc (section);
- native = (unsigned char *) bfd_zalloc (abfd, natsize);
+ natsize = section->size;
+ native = bfd_zalloc (abfd, natsize);
if (!native)
return FALSE;
{
while (count > 0)
{
- struct pdp11_aout_reloc_external *r;
+ bfd_byte *r;
- r = (struct pdp11_aout_reloc_external *)
- (native + (*generic)->address);
+ 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);
+ bfd_release (abfd, native);
+ return FALSE;
+ }
+ r = native + (*generic)->address;
pdp11_aout_swap_reloc_out (abfd, *generic, r);
count--;
generic++;
}
}
- if (bfd_bwrite ((PTR) native, natsize, abfd) != natsize)
+ if (bfd_bwrite ((void *) native, natsize, abfd) != natsize)
{
bfd_release (abfd, native);
return FALSE;
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)
}
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)
{
+ bfd_size_type count;
+
if (bfd_get_format (abfd) != bfd_object)
{
bfd_set_error (bfd_error_invalid_operation);
}
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));
-
- if (asect == obj_textsec (abfd))
- return (sizeof (arelent *)
- * ((exec_hdr(abfd)->a_trsize / obj_reloc_entry_size (abfd))
- + 1));
-
- /* TODO: why are there two if statements for obj_bsssec()? */
-
- if (asect == obj_bsssec (abfd))
- return sizeof (arelent *);
-
- if (asect == obj_bsssec (abfd))
- return 0;
+ count = asect->reloc_count;
+ else if (asect == obj_datasec (abfd))
+ count = exec_hdr (abfd)->a_drsize / obj_reloc_entry_size (abfd);
+ else if (asect == obj_textsec (abfd))
+ count = exec_hdr (abfd)->a_trsize / obj_reloc_entry_size (abfd);
+ else if (asect == obj_bsssec (abfd))
+ count = 0;
+ else
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
- bfd_set_error (bfd_error_invalid_operation);
- return -1;
+ if (count >= LONG_MAX / sizeof (arelent *))
+ {
+ bfd_set_error (bfd_error_file_too_big);
+ return -1;
+ }
+ return (count + 1) * sizeof (arelent *);
}
\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 *));
}
alent *
-NAME(aout,get_lineno) (abfd, symbol)
- bfd * abfd ATTRIBUTE_UNUSED;
- asymbol * symbol ATTRIBUTE_UNUSED;
+NAME (aout, get_lineno) (bfd * abfd ATTRIBUTE_UNUSED,
+ asymbol * symbol ATTRIBUTE_UNUSED)
{
- return (alent *)NULL;
+ return NULL;
}
void
-NAME(aout,get_symbol_info) (abfd, symbol, ret)
- bfd * abfd ATTRIBUTE_UNUSED;
- asymbol *symbol;
- symbol_info *ret;
+NAME (aout, get_symbol_info) (bfd * abfd ATTRIBUTE_UNUSED,
+ asymbol *symbol,
+ symbol_info *ret)
{
bfd_symbol_info (symbol, ret);
stab_name = buf;
}
ret->type = '-';
- 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;
+ 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) (abfd, afile, symbol, how)
- bfd * 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;
+ FILE *file = (FILE *) afile;
switch (how)
{
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));
+ 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 (abfd, (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));
+ (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);
}
BFD asymbol structures. */
long
-NAME(aout,read_minisymbols) (abfd, dynamic, minisymsp, sizep)
- bfd *abfd;
- bfd_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;
- bfd_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,
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.
-*/
+/* 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)
- (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;
+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 *discriminator_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 *line_file_name = NULL; /* Value of current_file_name at line number. */
bfd_vma low_line_vma = 0;
bfd_vma low_func_vma = 0;
asymbol *func = 0;
size_t filelen, funclen;
char *buf;
- *filename_ptr = abfd->filename;
- *functionname_ptr = 0;
+ *filename_ptr = bfd_get_filename (abfd);
+ *functionname_ptr = NULL;
*line_ptr = 0;
+ if (discriminator_ptr)
+ *discriminator_ptr = 0;
- if (symbols != (asymbol **)NULL)
+ if (symbols != NULL)
{
for (p = symbols; *p; p++)
{
const char * symname;
symname = q->symbol.name;
- if (strcmp (symname + strlen (symname) - 2, ".o") == 0)
+
+ if (symname != NULL
+ && strlen (symname) > 2
+ && strcmp (symname + strlen (symname) - 2, ".o") == 0)
{
if (q->symbol.value > low_line_vma)
{
}
main_file_name = current_file_name = q->symbol.name;
- /* Look ahead to next symbol to check if that too is an N_SO. */
+ /* Look ahead to next symbol to check if that too is an N_SO. */
p++;
if (*p == NULL)
- break;
+ goto done;
q = (aout_symbol_type *)(*p);
- if (q->type != (int)N_SO)
+ if (q->type != (int) N_SO)
goto next;
- /* Found a second N_SO First is directory; second is filename. */
+ /* 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)
case N_FUN:
{
- /* We'll keep this if it is nearer than the one we have already */
+ /* 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;
+ func = (asymbol *) q;
}
else if (q->symbol.value > offset)
goto done;
else
funclen = strlen (bfd_asymbol_name (func));
- if (adata (abfd).line_buf != NULL)
- free (adata (abfd).line_buf);
+ free (adata (abfd).line_buf);
if (filelen + funclen == 0)
adata (abfd).line_buf = buf = NULL;
else
{
- buf = (char *) bfd_malloc ((bfd_size_type) filelen + funclen + 3);
+ buf = bfd_malloc ((bfd_size_type) filelen + funclen + 3);
adata (abfd).line_buf = buf;
if (buf == NULL)
return FALSE;
*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;
+ }
}
}
const char *function = func->name;
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. */
}
int
-NAME(aout,sizeof_headers) (abfd, execable)
- bfd *abfd;
- bfd_boolean execable ATTRIBUTE_UNUSED;
+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. */
bfd_boolean
-NAME(aout,bfd_free_cached_info) (abfd)
- bfd *abfd;
+NAME (aout, bfd_free_cached_info) (bfd *abfd)
{
asection *o;
if (bfd_get_format (abfd) != bfd_object)
return TRUE;
-#define BFCI_FREE(x) if (x != NULL) { free (x); x = NULL; }
+#define BFCI_FREE(x) do { free (x); x = NULL; } while (0)
BFCI_FREE (obj_aout_symbols (abfd));
+
#ifdef USE_MMAP
obj_aout_external_syms (abfd) = 0;
bfd_free_window (&obj_aout_sym_window (abfd));
BFCI_FREE (obj_aout_external_syms (abfd));
BFCI_FREE (obj_aout_external_strings (abfd));
#endif
- for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ for (o = abfd->sections; o != NULL; o = o->next)
BFCI_FREE (o->relocation);
#undef BFCI_FREE
return TRUE;
}
\f
-/* a.out link code. */
-
-static bfd_boolean aout_link_add_object_symbols
- PARAMS ((bfd *, struct bfd_link_info *));
-static bfd_boolean aout_link_check_archive_element
- PARAMS ((bfd *, struct bfd_link_info *, bfd_boolean *));
-static bfd_boolean aout_link_free_symbols PARAMS ((bfd *));
-static bfd_boolean aout_link_check_ar_symbols
- PARAMS ((bfd *, struct bfd_link_info *, bfd_boolean *pneeded));
-static bfd_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)
- return (struct bfd_hash_entry *) ret;
+ if (ret == NULL)
+ ret = bfd_hash_allocate (table, sizeof (* ret));
+ if (ret == NULL)
+ return NULL;
/* Call the allocation method of the superclass. */
- ret = ((struct aout_link_hash_entry *)
- _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret,
- table, string));
+ ret = (struct aout_link_hash_entry *)
+ _bfd_link_hash_newfunc ((struct bfd_hash_entry *) ret, table, string);
if (ret)
{
/* Set local fields. */
/* Initialize an a.out link hash table. */
bfd_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 *));
+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 (struct aout_link_hash_table);
+ size_t amt = sizeof (struct aout_link_hash_table);
- ret = ((struct aout_link_hash_table *) bfd_alloc (abfd, amt));
+ ret = bfd_malloc (amt);
if (ret == NULL)
- 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;
}
+/* Free up the internal symbols read from an a.out file. */
+
+static bfd_boolean
+aout_link_free_symbols (bfd *abfd)
+{
+ 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;
+}
+
/* Given an a.out BFD, add symbols to the global hash table as
appropriate. */
bfd_boolean
-NAME(aout,link_add_symbols) (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+NAME (aout, link_add_symbols) (bfd *abfd, struct bfd_link_info *info)
{
switch (bfd_get_format (abfd))
{
/* Add symbols from an a.out object file. */
static bfd_boolean
-aout_link_add_object_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+aout_link_add_object_symbols (bfd *abfd, struct bfd_link_info *info)
{
if (! aout_get_external_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. */
-
-static bfd_boolean
-aout_link_check_archive_element (abfd, info, pneeded)
- bfd *abfd;
- struct bfd_link_info *info;
- bfd_boolean *pneeded;
-{
- 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;
-}
-
-/* Free up the internal symbols read from an a.out file. */
-
-static bfd_boolean
-aout_link_free_symbols (abfd)
- bfd *abfd;
-{
- if (obj_aout_external_syms (abfd) != (struct external_nlist *) NULL)
- {
-#ifdef USE_MMAP
- bfd_free_window (&obj_aout_sym_window (abfd));
-#else
- free ((PTR) obj_aout_external_syms (abfd));
-#endif
- obj_aout_external_syms (abfd) = (struct external_nlist *) NULL;
- }
- if (obj_aout_external_strings (abfd) != (char *) NULL)
- {
-#ifdef USE_MMAP
- bfd_free_window (&obj_aout_string_window (abfd));
-#else
- free ((PTR) obj_aout_external_strings (abfd));
-#endif
- obj_aout_external_strings (abfd) = (char *) NULL;
- }
- 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
(unless there is some other reason to include it). */
static bfd_boolean
-aout_link_check_ar_symbols (abfd, info, pneeded)
- bfd *abfd;
- struct bfd_link_info *info;
- bfd_boolean *pneeded;
+aout_link_check_ar_symbols (bfd *abfd,
+ struct bfd_link_info *info,
+ bfd_boolean *pneeded,
+ bfd **subsbfd)
{
- register struct external_nlist *p;
+ struct external_nlist *p;
struct external_nlist *pend;
char *strings;
/* We are only interested in symbols that are currently
undefined or common. */
- if (h == (struct bfd_link_hash_entry *) NULL
+ if (h == NULL
|| (h->type != bfd_link_hash_undefined
&& h->type != bfd_link_hash_common))
continue;
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;
+ int a;
and this object file from the archive includes
- int a = 5;
+ 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
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;
+ if (!(*info->callbacks
+ ->add_archive_element) (info, abfd, name, subsbfd))
+ continue;
*pneeded = TRUE;
return TRUE;
}
unsigned int power;
symbfd = h->u.undef.abfd;
- if (symbfd == (bfd *) NULL)
+ 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))
+ 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)));
+ h->u.c.p = bfd_hash_allocate (&info->hash->table,
+ sizeof (struct bfd_link_hash_common_entry));
if (h->u.c.p == NULL)
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. */
+
+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)
+ {
+ /* 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;
+ }
+
+ if (!info->keep_memory || !needed)
+ {
+ if (!aout_link_free_symbols (abfd))
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
/* Add all symbols from an object file to the hash table. */
static bfd_boolean
-aout_link_add_symbols (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+aout_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
{
bfd_boolean (*add_one_symbol)
- PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, asection *,
- bfd_vma, const char *, bfd_boolean, bfd_boolean,
- struct bfd_link_hash_entry **));
+ (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;
- register struct external_nlist *p;
+ struct external_nlist *p;
struct external_nlist *pend;
syms = obj_aout_external_syms (abfd);
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,
- sym_count * sizeof (struct aout_link_hash_entry *)));
+ sym_hash = bfd_alloc (abfd,
+ sym_count * sizeof (struct aout_link_hash_entry *));
if (sym_hash == NULL && sym_count != 0)
return FALSE;
obj_aout_sym_hashes (abfd) = sym_hash;
type = H_GET_8 (abfd, p->e_type);
-#if 0 /* not supported in PDP-11 a.out */
- /* Ignore debugging symbols. */
- if ((type & N_STAB) != 0)
- continue;
-#endif
-
+ /* 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;
switch (type)
{
default:
- abort ();
+ /* Anything else should be a debugging symbol. */
+ BFD_ASSERT ((type & N_STAB) != 0);
+ continue;
case N_UNDF:
case N_ABS:
break;
case N_TEXT | N_EXT:
section = obj_textsec (abfd);
- value -= bfd_get_section_vma (abfd, section);
+ value -= bfd_section_vma (section);
break;
case N_DATA | N_EXT:
/* Treat N_SETV symbols as N_DATA symbol; see comment in
translate_from_native_sym_flags. */
section = obj_datasec (abfd);
- value -= bfd_get_section_vma (abfd, section);
+ value -= bfd_section_vma (section);
break;
case N_BSS | N_EXT:
section = obj_bsssec (abfd);
- value -= bfd_get_section_vma (abfd, section);
+ value -= bfd_section_vma (section);
break;
}
return TRUE;
}
\f
-/* A hash table used for header files with N_BINCL entries. */
-
-struct aout_link_includes_table
-{
- struct bfd_hash_table root;
-};
-
-/* A linked list of totals that we have found for a particular header
- file. */
-
-struct aout_link_includes_totals
-{
- struct aout_link_includes_totals *next;
- bfd_vma total;
-};
-
-/* An entry in the header file hash table. */
-
-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. */
- 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 struct bfd_hash_entry *aout_link_includes_newfunc
- PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
-static bfd_boolean aout_link_input_bfd
- PARAMS ((struct aout_final_link_info *, bfd *input_bfd));
-static bfd_boolean aout_link_write_symbols
- PARAMS ((struct aout_final_link_info *, bfd *input_bfd));
-static bfd_boolean aout_link_write_other_symbol
- PARAMS ((struct aout_link_hash_entry *, PTR));
-static bfd_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 INLINE asection *aout_reloc_type_to_section
- PARAMS ((bfd *, int));
-static bfd_boolean aout_link_reloc_link_order
- PARAMS ((struct aout_final_link_info *, asection *,
- struct bfd_link_order *));
-static bfd_boolean pdp11_aout_link_input_section
- PARAMS ((struct aout_final_link_info *finfo,
- bfd *input_bfd,
- asection *input_section,
- struct pdp11_aout_reloc_external *relocs,
- bfd_size_type rel_size,
- bfd_byte *contents));
-
/* The function to create a new entry in the header file hash table. */
static struct bfd_hash_entry *
-aout_link_includes_newfunc (entry, table, string)
- struct bfd_hash_entry *entry;
- struct bfd_hash_table *table;
- const char *string;
+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 * ret =
(struct aout_link_includes_entry *) entry;
/* Allocate the structure if it has not already been allocated by a
subclass. */
- if (ret == (struct aout_link_includes_entry *) NULL)
- ret = ((struct aout_link_includes_entry *)
- bfd_hash_allocate (table,
- sizeof (struct aout_link_includes_entry)));
- if (ret == (struct aout_link_includes_entry *) NULL)
- return (struct bfd_hash_entry *) ret;
+ if (ret == NULL)
+ ret = bfd_hash_allocate (table,
+ sizeof (struct aout_link_includes_entry));
+ 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)
- {
- /* Set local fields. */
- ret->totals = NULL;
- }
+ /* Set local fields. */
+ ret->totals = NULL;
return (struct bfd_hash_entry *) ret;
}
-/* 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. */
+/* Write out a symbol that was not associated with an a.out input
+ object. */
-bfd_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_write_other_symbol (struct bfd_hash_entry *bh, void *data)
{
- struct aout_final_link_info aout_info;
- bfd_boolean includes_hash_initialized = FALSE;
- register 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;
- bfd_size_type text_size;
- file_ptr text_end;
- register struct bfd_link_order *p;
- asection *o;
- bfd_boolean have_link_order_relocs;
-
- if (info->shared)
- abfd->flags |= DYNAMIC;
+ 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;
+ int type;
+ bfd_vma val;
+ struct external_nlist outsym;
+ bfd_size_type indx;
+ size_t amt;
- 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 (! bfd_hash_table_init_n (&aout_info.includes.root,
- aout_link_includes_newfunc,
- 251))
- goto error_return;
- includes_hash_initialized = TRUE;
-
- /* 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)
+ if (h->root.type == bfd_link_hash_warning)
{
- size_t sz;
+ h = (struct aout_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_new)
+ return TRUE;
+ }
- if (info->relocatable)
- {
- 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. */
- (*_bfd_error_handler)
- ("%s: relocatable link from %s to %s not supported",
- bfd_get_filename (abfd),
- sub->xvec->name, abfd->xvec->name);
- bfd_set_error (bfd_error_invalid_operation);
- goto error_return;
- }
- }
+ output_bfd = flaginfo->output_bfd;
- if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
+ if (aout_backend_info (output_bfd)->write_dynamic_symbol != NULL)
+ {
+ if (! ((*aout_backend_info (output_bfd)->write_dynamic_symbol)
+ (output_bfd, flaginfo->info, h)))
{
- 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;
-
- 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;
+ /* FIXME: No way to handle errors. */
+ abort ();
}
}
- if (info->relocatable)
- {
- 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));
- }
+ if (h->written)
+ return TRUE;
- exec_hdr (abfd)->a_trsize = trsize;
- exec_hdr (abfd)->a_drsize = drsize;
+ h->written = TRUE;
- exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
+ /* 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;
- /* 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;
+ 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;
- /* 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;
+ 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;
+ /* Fall through. */
+ 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;
+ }
- /* We keep a count of the symbols as we output them. */
- obj_aout_external_sym_count (abfd) = 0;
+ H_PUT_8 (output_bfd, type, outsym.e_type);
+ 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 ();
- /* 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;
+ PUT_WORD (output_bfd, indx, outsym.e_strx);
+ PUT_WORD (output_bfd, val, outsym.e_value);
- /* Allocate buffers to hold section contents and relocs. */
- aout_info.contents = (bfd_byte *) bfd_malloc (max_contents_size);
- aout_info.relocs = (PTR) 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;
+ 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 ();
- /* 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;
+ flaginfo->symoff += amt;
+ h->indx = obj_aout_external_sym_count (output_bfd);
+ ++obj_aout_external_sym_count (output_bfd);
- h = aout_link_hash_lookup (aout_hash_table (info), "__DYNAMIC",
- FALSE, FALSE, FALSE);
- if (h != NULL)
- aout_link_write_other_symbol (h, &aout_info);
- }
+ return TRUE;
+}
- /* 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.
+/* Handle a link order which is supposed to generate a reloc. */
- 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.
+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;
+ struct reloc_std_external srel;
+ void * rel_ptr;
+ bfd_size_type rel_size;
- 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;
+ pr = p->u.reloc.p;
- /* 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)
+ if (p->type == bfd_section_reloc_link_order)
{
- for (p = o->link_order_head; p != NULL; p = p->next)
+ r_extern = 0;
+ if (bfd_is_abs_section (pr->u.section))
+ r_index = N_ABS | N_EXT;
+ else
{
- if (p->type == bfd_indirect_link_order)
- p->u.indirect.section->linker_mark = TRUE;
+ BFD_ASSERT (pr->u.section->owner == flaginfo->output_bfd);
+ r_index = pr->u.section->target_index;
}
}
-
- have_link_order_relocs = FALSE;
- for (o = abfd->sections; o != (asection *) NULL; o = o->next)
+ else
{
- 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;
+ struct aout_link_hash_entry *h;
- 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;
- }
- }
- 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;
- }
+ 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)
+ {
+ /* 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->root.root, flaginfo))
+ return FALSE;
+ r_index = h->indx;
}
- }
-
- /* 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)
+ else
{
- for (p = o->link_order_head;
- p != (struct bfd_link_order *) 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;
- }
- }
+ (*flaginfo->info->callbacks->unattached_reloc)
+ (flaginfo->info, pr->u.name, NULL, NULL, (bfd_vma) 0);
+ r_index = 0;
}
}
- 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)
- {
- 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;
- }
-
- /* 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;
- }
-
- /* 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, unless there are no symbols. */
- if (abfd->symcount > 0)
- {
- if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
- || ! emit_stringtab (abfd, aout_info.strtab))
- goto error_return;
- }
- else if (obj_textsec (abfd)->reloc_count == 0
- && obj_datasec (abfd)->reloc_count == 0)
+ howto = bfd_reloc_type_lookup (flaginfo->output_bfd, pr->reloc);
+ if (howto == 0)
{
- bfd_byte b;
-
- b = 0;
- if (bfd_seek (abfd,
- (file_ptr) (obj_datasec (abfd)->filepos
- + exec_hdr (abfd)->a_data
- - 1),
- SEEK_SET) != 0
- || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
- goto error_return;
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
}
- return TRUE;
+ 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 ();
- 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;
-}
+#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;
-/* Link an a.out input BFD into the output file. */
+ fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__);
-static bfd_boolean
-aout_link_input_bfd (finfo, input_bfd)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
-{
- bfd_size_type sym_count;
+ 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;
- BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
+ 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;
- /* 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)
+ /* 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)
{
- return ((*aout_backend_info (input_bfd)->link_dynamic_object)
- (finfo->info, input_bfd));
+ bfd_size_type size;
+ bfd_reloc_status_type r;
+ bfd_byte *buf;
+ bfd_boolean ok;
+
+ size = bfd_get_reloc_size (howto);
+ buf = bfd_zmalloc (size);
+ if (buf == NULL && size != 0)
+ return FALSE;
+ r = MY_relocate_contents (howto, flaginfo->output_bfd,
+ pr->addend, buf);
+ switch (r)
+ {
+ case bfd_reloc_ok:
+ break;
+ 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 (pr->u.section)
+ : pr->u.name),
+ howto->name, pr->addend, NULL,
+ (asection *) NULL, (bfd_vma) 0);
+ break;
+ }
+ ok = bfd_set_section_contents (flaginfo->output_bfd, o,
+ (void *) buf,
+ (file_ptr) p->offset,
+ size);
+ free (buf);
+ if (! ok)
+ return FALSE;
}
- /* Get the symbols. We probably have them already, unless
- finfo->info->keep_memory is FALSE. */
- if (! aout_get_external_symbols (input_bfd))
+ rel_size = obj_reloc_entry_size (flaginfo->output_bfd);
+ if (bfd_seek (flaginfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
+ || bfd_bwrite (rel_ptr, rel_size, flaginfo->output_bfd) != rel_size)
return FALSE;
- sym_count = obj_aout_external_sym_count (input_bfd);
+ *reloff_ptr += rel_size;
- /* 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;
+ /* 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)));
- /* 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)
- {
- if (! aout_link_input_section (finfo, input_bfd,
- obj_textsec (input_bfd),
- &finfo->treloff,
- exec_hdr (input_bfd)->a_trsize))
- return FALSE;
- }
- if (obj_datasec (input_bfd)->linker_mark)
- {
- if (! aout_link_input_section (finfo, input_bfd,
- obj_datasec (input_bfd),
- &finfo->dreloff,
- exec_hdr (input_bfd)->a_drsize))
- return FALSE;
- }
+ return TRUE;
+}
- /* 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)
+/* Get the section corresponding to a reloc index. */
+
+static inline asection *
+aout_reloc_type_to_section (bfd *abfd, int type)
+{
+ switch (type)
{
- if (! aout_link_free_symbols (input_bfd))
- return FALSE;
+ case RTEXT: return obj_textsec (abfd);
+ case RDATA: return obj_datasec (abfd);
+ case RBSS: return obj_bsssec (abfd);
+ case RABS: return bfd_abs_section_ptr;
+ case REXT: return bfd_und_section_ptr;
+ default: abort ();
}
-
- return TRUE;
}
-/* Adjust and write out the symbols for an a.out file. Set the new
- symbol indices into a symbol_map. */
-
static bfd_boolean
-aout_link_write_symbols (finfo, input_bfd)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
+pdp11_aout_link_input_section (struct aout_final_link_info *flaginfo,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *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_size_type sym_count;
+ bfd_boolean relocatable;
+ struct external_nlist *syms;
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;
+ struct aout_link_hash_entry **sym_hashes;
int *symbol_map;
- bfd_boolean pass;
- bfd_boolean skip_next;
+ bfd_byte *rel;
+ bfd_byte *rel_end;
- 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;
+ output_bfd = flaginfo->output_bfd;
+ check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
- /* 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)
- {
- H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
- 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;
- }
+ BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE);
+ BFD_ASSERT (input_bfd->xvec->header_byteorder
+ == output_bfd->xvec->header_byteorder);
- 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;
- memset (symbol_map, 0, (size_t) sym_count * sizeof *symbol_map);
- for (; sym < sym_end; sym++, sym_hash++, symbol_map++)
+ 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;
+
+ rel = relocs;
+ rel_end = rel + rel_size;
+ for (; rel < rel_end; rel += RELOC_SIZE)
{
- const char *name;
- int type;
- struct aout_link_hash_entry *h;
- bfd_boolean skip;
- asection *symsec;
- bfd_vma val = 0;
- bfd_boolean copy;
+ bfd_vma r_addr;
+ int r_index;
+ int r_type;
+ int r_pcrel;
+ int r_extern;
+ reloc_howto_type *howto;
+ struct aout_link_hash_entry *h = NULL;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ int reloc_entry;
- /* 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)
+ reloc_entry = GET_WORD (input_bfd, (void *) rel);
+ if (reloc_entry == 0)
continue;
- /* 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;
+ {
+ unsigned int howto_idx;
- type = H_GET_8 (input_bfd, sym->e_type);
- name = strings + GET_WORD (input_bfd, sym->e_strx);
+ r_index = (reloc_entry & RIDXMASK) >> 4;
+ r_type = reloc_entry & RTYPE;
+ r_pcrel = reloc_entry & RELFLG;
+ r_addr = (char *) rel - (char *) relocs;
- h = NULL;
+ r_extern = (r_type == REXT);
- 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
+ howto_idx = r_pcrel;
+ if (howto_idx < TABLE_SIZE (howto_table_pdp11))
+ howto = howto_table_pdp11 + howto_idx;
+ else
+ {
+ _bfd_error_handler (_("%pB: unsupported relocation type"),
+ input_bfd);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+ }
+
+ if (relocatable)
{
- struct aout_link_hash_entry *hresolve;
+ /* We are generating a relocatable 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 != NULL
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak))
+ {
+ asection *output_section;
- /* 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;
+ /* Compute a new r_index. */
+ output_section = h->root.u.def.section->output_section;
+ if (output_section == obj_textsec (output_bfd))
+ r_type = N_TEXT;
+ else if (output_section == obj_datasec (output_bfd))
+ r_type = N_DATA;
+ else if (output_section == obj_bsssec (output_bfd))
+ r_type = N_BSS;
+ else
+ r_type = N_ABS;
- /* Use the name from the hash table, in case the symbol was
- wrapped. */
- if (h != NULL)
- name = h->root.root.string;
+ /* 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 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 (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;
- /* 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)
+ 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. */
+ reloc_entry = GET_WORD (input_bfd, rel);
+ reloc_entry &= RIDXMASK;
+ reloc_entry |= r_index << 4;
+ PUT_WORD (input_bfd, reloc_entry, rel);
+ }
+ else
{
- if ((type & N_TYPE) == N_INDR
- || type == N_WARNING)
- skip_next = TRUE;
- *symbol_map = h->indx;
- continue;
+ asection *section;
+
+ /* This is a relocation against a section. We must
+ adjust by the amount that the section moved. */
+ section = aout_reloc_type_to_section (input_bfd, r_type);
+ relocation = (section->output_section->vma
+ + section->output_offset
+ - section->vma);
}
- /* See if we are stripping this symbol. */
- skip = FALSE;
- switch (strip)
+ /* Change the address of the relocation. */
+ fprintf (stderr, "TODO: change the address of the relocation\n");
+
+ /* 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)
{
- 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;
- break;
- case strip_all:
- skip = TRUE;
- break;
+ 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;
+ }
}
- if (skip)
+ else
{
- if (h != (struct aout_link_hash_entry *) NULL)
- h->written = TRUE;
- continue;
+ asection *section;
+
+ section = aout_reloc_type_to_section (input_bfd, r_type);
+ relocation = (section->output_section->vma
+ + section->output_offset
+ - section->vma);
+ if (r_pcrel)
+ relocation += input_section->vma;
}
- /* 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)
+ if (check_dynamic_reloc != NULL)
{
- /* 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;
+ bfd_boolean skip;
+
+ if (! ((*check_dynamic_reloc)
+ (flaginfo->info, input_bfd, input_section, h,
+ (void *) rel, contents, &skip, &relocation)))
+ return FALSE;
+ if (skip)
+ continue;
}
- else if ((type & N_STAB) != 0)
+
+ /* 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))
{
- val = GET_WORD (input_bfd, sym->e_value);
- symsec = NULL;
+ 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);
}
- else
+
+ r = MY_final_link_relocate (howto,
+ input_bfd, input_section,
+ contents, r_addr, relocation,
+ (bfd_vma) 0);
+ }
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
{
- /* 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;
+ default:
+ case bfd_reloc_outofrange:
+ abort ();
+ case bfd_reloc_overflow:
+ {
+ const char *name;
- symsec = NULL;
+ if (h != NULL)
+ name = NULL;
+ else if (r_extern)
+ name = strings + GET_WORD (input_bfd,
+ syms[r_index].e_strx);
+ else
+ {
+ asection *s;
- /* 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)
- {
- asection *input_section;
- asection *output_section;
+ s = aout_reloc_type_to_section (input_bfd, r_type);
+ name = bfd_section_name (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;
+ }
+ }
+ }
- /* 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);
+ return TRUE;
+}
- /* 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;
+/* Link an a.out section into the output file. */
- type &=~ N_TYPE;
+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;
+ void * relocs;
- if (output_section == obj_textsec (output_bfd))
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_TEXT
- : N_WEAKT);
- else if (output_section == obj_datasec (output_bfd))
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_DATA
- : N_WEAKD);
- else if (output_section == obj_bsssec (output_bfd))
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_BSS
- : N_WEAKB);
- else
- type |= (hresolve->root.type == bfd_link_hash_defined
- ? N_ABS
- : N_WEAKA);
- }
- else if (hresolve->root.type == bfd_link_hash_common)
- val = hresolve->root.u.c.size;
- else if (hresolve->root.type == bfd_link_hash_undefweak)
- {
- val = 0;
- type = N_WEAKU;
- }
- else
- val = 0;
- }
- if (symsec != (asection *) NULL)
- val = (symsec->output_section->vma
- + symsec->output_offset
- + (GET_WORD (input_bfd, sym->e_value)
- - symsec->vma));
+ /* Get the section contents. */
+ input_size = input_section->size;
+ if (! bfd_get_section_contents (input_bfd, input_section,
+ (void *) flaginfo->contents,
+ (file_ptr) 0, input_size))
+ return FALSE;
- /* 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)
- {
- 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)
- {
- 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;
- }
- if (skip)
- {
- pass = FALSE;
- continue;
- }
- }
+ /* Read in the relocs if we haven't already done it. */
+ if (aout_section_data (input_section) != NULL
+ && aout_section_data (input_section)->relocs != NULL)
+ relocs = aout_section_data (input_section)->relocs;
+ else
+ {
+ relocs = flaginfo->relocs;
+ if (rel_size > 0)
+ {
+ if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
+ || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
+ return FALSE;
+ }
+ }
- /* 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 == N_BINCL)
- {
- struct external_nlist *incl_sym;
- int nest;
- struct aout_link_includes_entry *incl_entry;
- struct aout_link_includes_totals *t;
+ /* Relocate the section contents. */
+ if (! pdp11_aout_link_input_section (flaginfo, input_bfd, input_section,
+ (bfd_byte *) relocs,
+ rel_size, flaginfo->contents))
+ return FALSE;
- val = 0;
- nest = 0;
- for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
- {
- int incl_type;
+ /* Write out the section contents. */
+ if (! bfd_set_section_contents (flaginfo->output_bfd,
+ input_section->output_section,
+ (void *) flaginfo->contents,
+ (file_ptr) input_section->output_offset,
+ input_size))
+ return FALSE;
- incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
- if (incl_type == N_EINCL)
- {
- if (nest == 0)
- break;
- --nest;
- }
- else if (incl_type == N_BINCL)
- ++nest;
- else if (nest == 0)
- {
- const char *s;
+ /* If we are producing relocatable output, the relocs were
+ modified, and we now write them out. */
+ if (bfd_link_relocatable (flaginfo->info) && rel_size > 0)
+ {
+ 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;
- 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;
- }
- }
- }
- }
+ /* 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 (flaginfo->output_bfd)
+ && (reloff_ptr != &flaginfo->treloff
+ || (*reloff_ptr
+ <= obj_datasec (flaginfo->output_bfd)->rel_filepos)));
+ }
- /* If we have already included a header file with the
- same value, then replace this one with an N_EXCL
- symbol. */
- copy = ! finfo->info->keep_memory;
- incl_entry = aout_link_includes_lookup (&finfo->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)
- {
- /* 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 (&finfo->includes.root,
- sizeof *t));
- if (t == NULL)
- return FALSE;
- t->total = val;
- t->next = incl_entry->totals;
- incl_entry->totals = t;
- }
- else
- {
- int *incl_map;
+ return TRUE;
+}
- /* 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 = N_EXCL;
+/* Link an a.out input BFD into the output file. */
- nest = 0;
- for (incl_sym = sym + 1, incl_map = symbol_map + 1;
- incl_sym < sym_end;
- incl_sym++, incl_map++)
- {
- int incl_type;
+static bfd_boolean
+aout_link_input_bfd (struct aout_final_link_info *flaginfo, bfd *input_bfd)
+{
+ BFD_ASSERT (bfd_get_format (input_bfd) == bfd_object);
- incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
- if (incl_type == N_EINCL)
- {
- if (nest == 0)
- {
- *incl_map = -1;
- break;
- }
- --nest;
- }
- else if (incl_type == N_BINCL)
- ++nest;
- else if (nest == 0)
- *incl_map = -1;
- }
- }
+ /* 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));
+
+ /* Get the symbols. We probably have them already, unless
+ flaginfo->info->keep_memory is FALSE. */
+ if (! aout_get_external_symbols (input_bfd))
+ return FALSE;
+
+ /* 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;
+
+ /* 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)
+ {
+ 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;
+ }
+
+ /* 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;
+ }
+
+ 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. */
+
+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;
+
+ if (bfd_link_pic (info))
+ abfd->flags |= DYNAMIC;
+
+ separate_i_d = info->separate_code;
+ 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 (!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;
+
+ /* 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)
+ {
+ size_t 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
+ {
+ /* 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;
}
}
- /* Copy this symbol into the list of symbols we are going to
- write out. */
- H_PUT_8 (output_bfd, type, outsym->e_type);
- copy = FALSE;
- if (! finfo->info->keep_memory)
+ if (bfd_get_flavour (sub) == bfd_target_aout_flavour)
{
- /* 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;
+ 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;
+
+ 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;
}
- 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;
}
- /* Write out the output symbols we have just constructed. */
- if (outsym > finfo->output_syms)
+ if (bfd_link_relocatable (info))
{
- bfd_size_type size;
-
- if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0)
- return FALSE;
- size = outsym - finfo->output_syms;
- size *= EXTERNAL_NLIST_SIZE;
- if (bfd_bwrite ((PTR) finfo->output_syms, size, output_bfd) != size)
- return FALSE;
- finfo->symoff += size;
+ 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));
}
- return TRUE;
-}
+ exec_hdr (abfd)->a_trsize = trsize;
+ exec_hdr (abfd)->a_drsize = drsize;
+ exec_hdr (abfd)->a_entry = bfd_get_start_address (abfd);
-/* Write out a symbol that was not associated with an a.out input
- object. */
+ /* 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;
-static bfd_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;
- bfd_size_type amt;
+ /* 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 (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;
- }
+ /* We keep a count of the symbols as we output them. */
+ obj_aout_external_sym_count (abfd) = 0;
- output_bfd = finfo->output_bfd;
+ /* 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;
- 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 ();
- }
- }
+ /* Allocate buffers to hold section contents and relocs. */
+ aout_info.contents = bfd_malloc (max_contents_size);
+ aout_info.relocs = bfd_malloc (max_relocs_size);
+ aout_info.symbol_map = bfd_malloc (max_sym_count * sizeof (int *));
+ aout_info.output_syms = 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 (h->written)
- return TRUE;
+ /* 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->written = TRUE;
+ 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);
+ }
- /* 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;
+ /* 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.
- 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;
+ 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.
- 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;
- }
+ 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;
- H_PUT_8 (output_bfd, type, outsym.e_type);
- indx = add_to_stringtab (output_bfd, finfo->strtab, h->root.root.string,
- FALSE);
- if (indx == (bfd_size_type) -1)
+ /* 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)
{
- /* FIXME: No way to handle errors. */
- abort ();
+ 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;
}
- PUT_WORD (output_bfd, indx, outsym.e_strx);
- PUT_WORD (output_bfd, val, outsym.e_value);
- amt = EXTERNAL_NLIST_SIZE;
- if (bfd_seek (output_bfd, finfo->symoff, SEEK_SET) != 0
- || bfd_bwrite ((PTR) &outsym, amt, output_bfd) != amt)
+ have_link_order_relocs = FALSE;
+ for (o = abfd->sections; o != NULL; o = o->next)
{
- /* FIXME: No way to handle errors. */
- abort ();
- }
-
- finfo->symoff += amt;
- h->indx = obj_aout_external_sym_count (output_bfd);
- ++obj_aout_external_sym_count (output_bfd);
-
- return TRUE;
-}
-
-/* Link an a.out section into the output file. */
+ 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))
+ {
+ bfd *input_bfd;
-static bfd_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;
-{
- bfd_size_type input_size;
- PTR relocs;
+ 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;
+ }
+ }
+ 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;
+ }
+ }
+ }
- /* Get the section contents. */
- input_size = bfd_section_size (input_bfd, input_section);
- if (! bfd_get_section_contents (input_bfd, input_section,
- (PTR) finfo->contents,
- (file_ptr) 0, input_size))
- return FALSE;
+ /* Write out any symbols that we have not already written out. */
+ bfd_hash_traverse (&info->hash->table,
+ aout_link_write_other_symbol,
+ &aout_info);
- /* Read in the relocs if we haven't already done it. */
- if (aout_section_data (input_section) != NULL
- && aout_section_data (input_section)->relocs != NULL)
- relocs = aout_section_data (input_section)->relocs;
- else
+ /* 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)
{
- relocs = finfo->relocs;
- if (rel_size > 0)
+ for (o = abfd->sections; o != NULL; o = o->next)
{
- if (bfd_seek (input_bfd, input_section->rel_filepos, SEEK_SET) != 0
- || bfd_bread (relocs, rel_size, input_bfd) != rel_size)
- return FALSE;
+ 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;
+ }
+ }
}
}
- /* Relocate the section contents. */
- if (! pdp11_aout_link_input_section (finfo, input_bfd, input_section,
- (struct pdp11_aout_reloc_external *) relocs,
- rel_size, finfo->contents))
- return FALSE;
+ free (aout_info.contents);
+ aout_info.contents = NULL;
+ free (aout_info.relocs);
+ aout_info.relocs = NULL;
+ free (aout_info.symbol_map);
+ aout_info.symbol_map = 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;
+ }
- /* Write out the section contents. */
- if (! bfd_set_section_contents (finfo->output_bfd,
- input_section->output_section,
- (PTR) finfo->contents,
- (file_ptr) input_section->output_offset,
- input_size))
- return FALSE;
+ /* 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;
+ }
- /* If we are producing relocatable output, the relocs were
- modified, and we now write them out. */
- if (finfo->info->relocatable && rel_size > 0)
+ /* 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, unless there are no symbols. */
+ if (abfd->symcount > 0)
+ {
+ if (bfd_seek (abfd, obj_str_filepos (abfd), SEEK_SET) != 0
+ || ! emit_stringtab (abfd, aout_info.strtab))
+ goto error_return;
+ }
+ else if (obj_textsec (abfd)->reloc_count == 0
+ && obj_datasec (abfd)->reloc_count == 0)
{
- if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0)
- return FALSE;
- if (bfd_bwrite (relocs, rel_size, finfo->output_bfd) != rel_size)
- return FALSE;
- *reloff_ptr += rel_size;
+ /* The layout of a typical a.out file is header, text, data,
+ relocs, symbols, string table. When there are no relocs,
+ symbols or string table, the last thing in the file is data
+ and a_data may be rounded up. However we may have a smaller
+ sized .data section and thus not written final padding. The
+ same thing can happen with text if there is no data. Write
+ final padding here to extend the file. */
+ file_ptr pos = 0;
+
+ if (exec_hdr (abfd)->a_data > obj_datasec (abfd)->size)
+ pos = obj_datasec (abfd)->filepos + exec_hdr (abfd)->a_data;
+ else if (obj_datasec (abfd)->size == 0
+ && exec_hdr (abfd)->a_text > obj_textsec (abfd)->size)
+ pos = obj_textsec (abfd)->filepos + exec_hdr (abfd)->a_text;
+ if (pos != 0)
+ {
+ bfd_byte b = 0;
- /* 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
- || (*reloff_ptr
- <= obj_datasec (finfo->output_bfd)->rel_filepos)));
+ if (bfd_seek (abfd, pos - 1, SEEK_SET) != 0
+ || bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1)
+ goto error_return;
+ }
}
return TRUE;
-}
-
-/* Get the section corresponding to a reloc index. */
-static INLINE asection *
-aout_reloc_type_to_section (abfd, type)
- bfd *abfd;
- int type;
-{
- switch (type)
- {
- case RTEXT:
- return obj_textsec (abfd);
- case RDATA:
- return obj_datasec (abfd);
- case RBSS:
- return obj_bsssec (abfd);
- case RABS:
- return bfd_abs_section_ptr;
- case REXT:
- return bfd_und_section_ptr;
- default:
- abort ();
- }
+ error_return:
+ free (aout_info.contents);
+ free (aout_info.relocs);
+ free (aout_info.symbol_map);
+ free (aout_info.output_syms);
+ if (includes_hash_initialized)
+ bfd_hash_table_free (&aout_info.includes.root);
+ return FALSE;
}
+/* Adjust and write out the symbols for an a.out file. Set the new
+ symbol indices into a symbol_map. */
+
static bfd_boolean
-pdp11_aout_link_input_section (finfo, input_bfd, input_section, relocs,
- rel_size, contents)
- struct aout_final_link_info *finfo;
- bfd *input_bfd;
- asection *input_section;
- struct pdp11_aout_reloc_external *relocs;
- bfd_size_type rel_size;
- bfd_byte *contents;
+aout_link_write_symbols (struct aout_final_link_info *flaginfo, bfd *input_bfd)
{
- bfd_boolean (*check_dynamic_reloc)
- PARAMS ((struct bfd_link_info *, bfd *, asection *,
- struct aout_link_hash_entry *, PTR, bfd_byte *, bfd_boolean *,
- bfd_vma *));
bfd *output_bfd;
- bfd_boolean relocatable;
- struct external_nlist *syms;
+ bfd_size_type sym_count;
char *strings;
- struct aout_link_hash_entry **sym_hashes;
+ 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_size_type reloc_count;
- register struct pdp11_aout_reloc_external *rel;
- struct pdp11_aout_reloc_external *rel_end;
-
- output_bfd = finfo->output_bfd;
- check_dynamic_reloc = aout_backend_info (output_bfd)->check_dynamic_reloc;
-
- BFD_ASSERT (obj_reloc_entry_size (input_bfd) == RELOC_SIZE);
- BFD_ASSERT (input_bfd->xvec->header_byteorder
- == output_bfd->xvec->header_byteorder);
+ bfd_boolean pass;
+ bfd_boolean skip_next;
- relocatable = finfo->info->relocatable;
- syms = obj_aout_external_syms (input_bfd);
+ output_bfd = flaginfo->output_bfd;
+ sym_count = obj_aout_external_sym_count (input_bfd);
strings = obj_aout_external_strings (input_bfd);
- sym_hashes = obj_aout_sym_hashes (input_bfd);
- symbol_map = finfo->symbol_map;
+ strip = flaginfo->info->strip;
+ discard = flaginfo->info->discard;
+ outsym = flaginfo->output_syms;
- reloc_count = rel_size / RELOC_SIZE;
- rel = relocs;
- rel_end = (struct pdp11_aout_reloc_external *)(((char *)rel) + rel_size);
- for (; rel < rel_end; ((char *)rel) += RELOC_SIZE)
+ /* 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,
+ bfd_get_filename (input_bfd),
+ FALSE, FALSE) != NULL)
+ && discard != discard_all)
{
- bfd_vma r_addr;
- int r_index;
- int r_type;
- int r_pcrel;
- int r_extern;
- reloc_howto_type *howto;
- struct aout_link_hash_entry *h = NULL;
- bfd_vma relocation;
- bfd_reloc_status_type r;
- int reloc_entry;
+ H_PUT_8 (output_bfd, N_TEXT, outsym->e_type);
+ strtab_index = add_to_stringtab (output_bfd, flaginfo->strtab,
+ bfd_get_filename (input_bfd), FALSE);
+ if (strtab_index == (bfd_size_type) -1)
+ return FALSE;
+ PUT_WORD (output_bfd, strtab_index, outsym->e_strx);
+ PUT_WORD (output_bfd,
+ (bfd_section_vma (obj_textsec (input_bfd)->output_section)
+ + obj_textsec (input_bfd)->output_offset),
+ outsym->e_value);
+ ++obj_aout_external_sym_count (output_bfd);
+ ++outsym;
+ }
- reloc_entry = GET_WORD (input_bfd, (PTR)rel);
- if (reloc_entry == 0)
+ 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;
+
+ /* 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;
- {
- unsigned int howto_idx;
+ /* 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;
- r_index = (reloc_entry & RIDXMASK) >> 4;
- r_type = reloc_entry & RTYPE;
- r_pcrel = reloc_entry & RELFLG;
- r_addr = (char *)rel - (char *)relocs;
+ type = H_GET_8 (input_bfd, sym->e_type);
+ name = strings + GET_WORD (input_bfd, sym->e_strx);
+
+ h = NULL;
+
+ 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)
+ 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 != 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 the symbol has already been written out, skip it. */
+ if (h != 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;
+ }
+
+ /* 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;
+ }
+
+ /* 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;
+
+ symsec = NULL;
+
+ /* 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;
- r_extern = (r_type == REXT);
+ /* 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_section_vma (output_section)
+ + input_section->output_offset);
- howto_idx = r_pcrel;
- BFD_ASSERT (howto_idx < TABLE_SIZE (howto_table_pdp11));
- howto = howto_table_pdp11 + howto_idx;
- }
+ /* 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;
- if (relocatable)
- {
- /* We are generating a relocatable 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;
+ 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_type = N_TEXT;
+ type |= (hresolve->root.type == bfd_link_hash_defined
+ ? N_TEXT
+ : N_WEAKT);
else if (output_section == obj_datasec (output_bfd))
- r_type = N_DATA;
+ type |= (hresolve->root.type == bfd_link_hash_defined
+ ? N_DATA
+ : N_WEAKD);
else if (output_section == obj_bsssec (output_bfd))
- r_type = N_BSS;
+ type |= (hresolve->root.type == bfd_link_hash_defined
+ ? N_BSS
+ : N_WEAKB);
else
- r_type = 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;
}
-
- /* Write out the new r_index value. */
- reloc_entry = GET_WORD (input_bfd, rel->e_reloc_entry);
- reloc_entry &= RIDXMASK;
- reloc_entry |= r_index << 4;
- PUT_WORD (input_bfd, reloc_entry, rel->e_reloc_entry);
+ else
+ val = 0;
}
- else
- {
- asection *section;
+ if (symsec != NULL)
+ val = (symsec->output_section->vma
+ + symsec->output_offset
+ + (GET_WORD (input_bfd, sym->e_value)
+ - symsec->vma));
- /* This is a relocation against a section. We must
- adjust by the amount that the section moved. */
- section = aout_reloc_type_to_section (input_bfd, r_type);
- relocation = (section->output_section->vma
- + section->output_offset
- - section->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 != NULL)
+ {
+ h->written = TRUE;
+ h->indx = obj_aout_external_sym_count (output_bfd);
}
-
- /* Change the address of the relocation. */
-#if 0
- PUT_WORD (output_bfd,
- r_addr + input_section->output_offset,
- rel->r_address);
-#else
-fprintf (stderr, "TODO: change the address of the relocation\n");
-#endif
-
- /* 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)
+ else if ((type & N_TYPE) != N_SETT
+ && (type & N_TYPE) != N_SETD
+ && (type & N_TYPE) != N_SETB
+ && (type & N_TYPE) != N_SETA)
{
- 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))
+ switch (discard)
{
- relocation = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
+ 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 (h != (struct aout_link_hash_entry *) NULL
- && h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
- else
+ if (skip)
{
- hundef = TRUE;
- relocation = 0;
+ pass = FALSE;
+ continue;
}
}
- else
- {
- asection *section;
-
- section = aout_reloc_type_to_section (input_bfd, r_type);
- 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)
- (finfo->info, input_bfd, input_section, h,
- (PTR) 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 && ! finfo->info->shared)
- {
- const char *name;
-
- if (h != NULL)
- name = h->root.root.string;
- else
- 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, TRUE)))
- return FALSE;
- }
-
- r = MY_final_link_relocate (howto,
- input_bfd, input_section,
- contents, r_addr, relocation,
- (bfd_vma) 0);
- }
- if (r != bfd_reloc_ok)
- {
- switch (r)
+ /* 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 == N_BINCL)
{
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- {
- const char *name;
+ struct external_nlist *incl_sym;
+ int nest;
+ struct aout_link_includes_entry *incl_entry;
+ struct aout_link_includes_totals *t;
- if (h != NULL)
- name = h->root.root.string;
- else if (r_extern)
- name = strings + GET_WORD (input_bfd,
- syms[r_index].e_strx);
- else
- {
- asection *s;
+ val = 0;
+ nest = 0;
+ for (incl_sym = sym + 1; incl_sym < sym_end; incl_sym++)
+ {
+ int incl_type;
- s = aout_reloc_type_to_section (input_bfd, r_type);
- 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;
- }
- }
- }
+ incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
+ if (incl_type == N_EINCL)
+ {
+ if (nest == 0)
+ break;
+ --nest;
+ }
+ else if (incl_type == N_BINCL)
+ ++nest;
+ else if (nest == 0)
+ {
+ const char *s;
- return TRUE;
-}
+ 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;
+ }
+ }
+ }
+ }
-/* Handle a link order which is supposed to generate a reloc. */
+ /* If we have already included a header file with the
+ same value, then replace this one with an N_EXCL
+ symbol. */
+ copy = ! 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)
+ {
+ /* This is the first time we have seen this header
+ file with this set of stabs strings. */
+ t = 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
+ {
+ int *incl_map;
-static bfd_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;
- PTR rel_ptr;
- bfd_size_type rel_size;
+ /* 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 = N_EXCL;
- pr = p->u.reloc.p;
+ nest = 0;
+ for (incl_sym = sym + 1, incl_map = symbol_map + 1;
+ incl_sym < sym_end;
+ incl_sym++, incl_map++)
+ {
+ int incl_type;
- 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
- {
- BFD_ASSERT (pr->u.section->owner == finfo->output_bfd);
- r_index = pr->u.section->target_index;
+ incl_type = H_GET_8 (input_bfd, incl_sym->e_type);
+ if (incl_type == N_EINCL)
+ {
+ if (nest == 0)
+ {
+ *incl_map = -1;
+ break;
+ }
+ --nest;
+ }
+ else if (incl_type == N_BINCL)
+ ++nest;
+ else if (nest == 0)
+ *incl_map = -1;
+ }
+ }
+ }
}
- }
- 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 (finfo->output_bfd, 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
+ /* Copy this symbol into the list of symbols we are going to
+ write out. */
+ H_PUT_8 (output_bfd, type, outsym->e_type);
+ copy = FALSE;
+ if (! flaginfo->info->keep_memory)
{
- if (! ((*finfo->info->callbacks->unattached_reloc)
- (finfo->info, pr->u.name, (bfd *) NULL,
- (asection *) NULL, (bfd_vma) 0)))
- return FALSE;
- r_index = 0;
+ /* 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;
}
- howto = bfd_reloc_type_lookup (finfo->output_bfd, pr->reloc);
- if (howto == 0)
- {
- bfd_set_error (bfd_error_bad_value);
- return FALSE;
- }
-
- 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 ();
-
-#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;
-
- fprintf (stderr, "TODO: line %d in bfd/pdp11.c\n", __LINE__);
-
- 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;
-
- PUT_WORD (finfo->output_bfd, p->offset, srel.r_address);
- if (bfd_header_big_endian (finfo->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 = (PTR) &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)
+ /* Write out the output symbols we have just constructed. */
+ if (outsym > flaginfo->output_syms)
{
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 == (bfd_byte *) NULL)
+ if (bfd_seek (output_bfd, flaginfo->symoff, SEEK_SET) != 0)
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)
+ size = outsym - flaginfo->output_syms;
+ size *= EXTERNAL_NLIST_SIZE;
+ if (bfd_bwrite ((void *) flaginfo->output_syms, size, output_bfd) != size)
return FALSE;
+ flaginfo->symoff += size;
}
- rel_size = obj_reloc_entry_size (finfo->output_bfd);
- if (bfd_seek (finfo->output_bfd, *reloff_ptr, SEEK_SET) != 0
- || bfd_bwrite (rel_ptr, rel_size, finfo->output_bfd) != rel_size)
- return FALSE;
-
- *reloff_ptr += rel_size;
-
- /* 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;
}
-/* end of modified aoutx.h */
-bfd_vma
-bfd_getp32 (addr)
- const bfd_byte *addr;
+/* Write out a symbol that was not associated with an a.out input
+ object. */
+
+static bfd_vma
+bfd_getp32 (const void *p)
{
- return (((((bfd_vma)addr[1] << 8) | addr[0]) << 8)
- | addr[3]) << 8 | addr[2];
+ const bfd_byte *addr = p;
+ unsigned long v;
+
+ v = (unsigned long) addr[1] << 24;
+ v |= (unsigned long) addr[0] << 16;
+ v |= (unsigned long) addr[3] << 8;
+ v |= (unsigned long) addr[2];
+ return v;
}
#define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000)
-bfd_signed_vma
-bfd_getp_signed_32 (addr)
- const bfd_byte *addr;
+static bfd_signed_vma
+bfd_getp_signed_32 (const void *p)
{
- return COERCE32((((((bfd_vma)addr[1] << 8) | addr[0]) << 8)
- | addr[3]) << 8 | addr[2]);
+ const bfd_byte *addr = p;
+ unsigned long v;
+
+ v = (unsigned long) addr[1] << 24;
+ v |= (unsigned long) addr[0] << 16;
+ v |= (unsigned long) addr[3] << 8;
+ v |= (unsigned long) addr[2];
+ return COERCE32 (v);
}
-void
-bfd_putp32 (data, addr)
- bfd_vma data;
- bfd_byte *addr;
+static void
+bfd_putp32 (bfd_vma data, void *p)
{
- addr[0] = (bfd_byte)(data >> 16);
- addr[1] = (bfd_byte)(data >> 24);
- addr[2] = (bfd_byte)data;
- addr[3] = (bfd_byte)(data >> 8);
+ bfd_byte *addr = p;
+
+ addr[0] = (data >> 16) & 0xff;
+ addr[1] = (data >> 24) & 0xff;
+ addr[2] = (data >> 0) & 0xff;
+ addr[3] = (data >> 8) & 0xff;
}
+
+const bfd_target MY (vec) =
+{
+ TARGETNAME, /* Name. */
+ bfd_target_aout_flavour,
+ BFD_ENDIAN_LITTLE, /* Target byte order (little). */
+ BFD_ENDIAN_LITTLE, /* Target headers byte order (little). */
+ (HAS_RELOC | EXEC_P | /* Object flags. */
+ HAS_LINENO | HAS_DEBUG |
+ HAS_SYMS | HAS_LOCALS | WP_TEXT),
+ (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA),
+ MY_symbol_leading_char,
+ AR_PAD_CHAR, /* AR_pad_char. */
+ 15, /* AR_max_namelen. */
+ 0, /* match priority. */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getp32, bfd_getp_signed_32, bfd_putp32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
+ bfd_getl64, bfd_getl_signed_64, bfd_putl64,
+ bfd_getp32, bfd_getp_signed_32, bfd_putp32,
+ bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */
+ { /* bfd_check_format. */
+ _bfd_dummy_target,
+ MY_object_p,
+ bfd_generic_archive_p,
+ MY_core_file_p
+ },
+ { /* bfd_set_format. */
+ _bfd_bool_bfd_false_error,
+ MY_mkobject,
+ _bfd_generic_mkarchive,
+ _bfd_bool_bfd_false_error
+ },
+ { /* bfd_write_contents. */
+ _bfd_bool_bfd_false_error,
+ MY_write_object_contents,
+ _bfd_write_archive_contents,
+ _bfd_bool_bfd_false_error
+ },
+
+ BFD_JUMP_TABLE_GENERIC (MY),
+ BFD_JUMP_TABLE_COPY (MY),
+ BFD_JUMP_TABLE_CORE (MY),
+ BFD_JUMP_TABLE_ARCHIVE (MY),
+ BFD_JUMP_TABLE_SYMBOLS (MY),
+ BFD_JUMP_TABLE_RELOCS (MY),
+ BFD_JUMP_TABLE_WRITE (MY),
+ BFD_JUMP_TABLE_LINK (MY),
+ BFD_JUMP_TABLE_DYNAMIC (MY),
+
+ /* Alternative_target. */
+ NULL,
+
+ (void *) MY_backend_data
+};
projects / deliverable / binutils-gdb.git / blobdiff