/* BFD back-end for ARM COFF files.
- Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1990-2020 Free Software Foundation, Inc.
Written by Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-#include "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
-
#include "coff/arm.h"
-
#include "coff/internal.h"
+#include "cpu-arm.h"
+#include "coff-arm.h"
#ifdef COFF_WITH_PE
#include "coff/pe.h"
#include "libcoff.h"
-#define APCS_26_FLAG( abfd ) (coff_data (abfd)->flags & F_APCS_26)
-#define APCS_FLOAT_FLAG( abfd ) (coff_data (abfd)->flags & F_APCS_FLOAT)
-#define PIC_FLAG( abfd ) (coff_data (abfd)->flags & F_PIC)
-#define APCS_SET( abfd ) (coff_data (abfd)->flags & F_APCS_SET)
-#define SET_APCS_FLAGS( abfd, flgs) (coff_data (abfd)->flags = \
- (coff_data (abfd)->flags & ~ (F_APCS_26 | F_APCS_FLOAT | F_PIC)) \
- | (flgs | F_APCS_SET))
-#define INTERWORK_FLAG( abfd ) (coff_data (abfd)->flags & F_INTERWORK)
-#define INTERWORK_SET( abfd ) (coff_data (abfd)->flags & F_INTERWORK_SET)
-#define SET_INTERWORK_FLAG( abfd, flg ) (coff_data (abfd)->flags = \
- (coff_data (abfd)->flags & ~ F_INTERWORK) \
- | (flg | F_INTERWORK_SET))
+/* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
+#define OCTETS_PER_BYTE(ABFD, SEC) 1
+/* Macros for manipulation the bits in the flags field of the coff data
+ structure. */
+#define APCS_26_FLAG(abfd) \
+ (coff_data (abfd)->flags & F_APCS_26)
-static boolean coff_arm_relocate_section
- PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
- struct internal_reloc *, struct internal_syment *, asection **));
+#define APCS_FLOAT_FLAG(abfd) \
+ (coff_data (abfd)->flags & F_APCS_FLOAT)
-static bfd_reloc_status_type
-aoutarm_fix_pcrel_26_done PARAMS ((bfd *, arelent *, asymbol *, PTR,
- asection *, bfd *, char **));
+#define PIC_FLAG(abfd) \
+ (coff_data (abfd)->flags & F_PIC)
-static bfd_reloc_status_type
-aoutarm_fix_pcrel_26 PARAMS ((bfd *, arelent *, asymbol *, PTR,
- asection *, bfd *, char **));
+#define APCS_SET(abfd) \
+ (coff_data (abfd)->flags & F_APCS_SET)
-static bfd_reloc_status_type
-coff_thumb_pcrel_23 PARAMS ((bfd *, arelent *, asymbol *, PTR,
- asection *, bfd *, char **));
+#define SET_APCS_FLAGS(abfd, flgs) \
+ do \
+ { \
+ coff_data (abfd)->flags &= ~(F_APCS_26 | F_APCS_FLOAT | F_PIC); \
+ coff_data (abfd)->flags |= (flgs) | F_APCS_SET; \
+ } \
+ while (0)
-static bfd_reloc_status_type
-coff_thumb_pcrel_12 PARAMS ((bfd *, arelent *, asymbol *, PTR,
- asection *, bfd *, char **));
+#define INTERWORK_FLAG(abfd) \
+ (coff_data (abfd)->flags & F_INTERWORK)
-static bfd_reloc_status_type
-coff_thumb_pcrel_9 PARAMS ((bfd *, arelent *, asymbol *, PTR,
- asection *, bfd *, char **));
+#define INTERWORK_SET(abfd) \
+ (coff_data (abfd)->flags & F_INTERWORK_SET)
-static bfd_reloc_status_type
-coff_arm_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *,
- char **));
+#define SET_INTERWORK_FLAG(abfd, flg) \
+ do \
+ { \
+ coff_data (abfd)->flags &= ~F_INTERWORK; \
+ coff_data (abfd)->flags |= (flg) | F_INTERWORK_SET; \
+ } \
+ while (0)
+
+#ifndef NUM_ELEM
+#define NUM_ELEM(a) ((sizeof (a)) / sizeof ((a)[0]))
+#endif
-static boolean
-coff_arm_adjust_symndx PARAMS ((bfd *, struct bfd_link_info *, bfd *,
- asection *, struct internal_reloc *,
- boolean *));
+typedef enum {bunknown, b9, b12, b23} thumb_pcrel_branchtype;
+/* Some typedefs for holding instructions. */
+typedef unsigned long int insn32;
+typedef unsigned short int insn16;
/* The linker script knows the section names for placement.
The entry_names are used to do simple name mangling on the stubs.
Given a function name, and its type, the stub can be found. The
- name can be changed. The only requirement is the %s be present.
- */
-
+ name can be changed. The only requirement is the %s be present. */
+
#define THUMB2ARM_GLUE_SECTION_NAME ".glue_7t"
#define THUMB2ARM_GLUE_ENTRY_NAME "__%s_from_thumb"
#define ARM2THUMB_GLUE_SECTION_NAME ".glue_7"
#define ARM2THUMB_GLUE_ENTRY_NAME "__%s_from_arm"
-/* Used by the assembler. */
+/* Used by the assembler. */
+
static bfd_reloc_status_type
-coff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
- error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
+coff_arm_reloc (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol ATTRIBUTE_UNUSED,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
{
symvalue diff;
- if (output_bfd == (bfd *) NULL)
+
+ if (output_bfd == NULL)
return bfd_reloc_continue;
diff = reloc_entry->addend;
-#define DOIT(x) \
- x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
+#define DOIT(x) \
+ x = ((x & ~howto->dst_mask) \
+ | (((x & howto->src_mask) + diff) & howto->dst_mask))
- if (diff != 0)
- {
- reloc_howto_type *howto = reloc_entry->howto;
- unsigned char *addr = (unsigned char *) data + reloc_entry->address;
+ if (diff != 0)
+ {
+ reloc_howto_type *howto = reloc_entry->howto;
+ bfd_size_type octets = (reloc_entry->address
+ * OCTETS_PER_BYTE (abfd, input_section));
+ unsigned char *addr = (unsigned char *) data + octets;
- switch (howto->size)
- {
- case 0:
- {
- char x = bfd_get_8 (abfd, addr);
- DOIT (x);
- bfd_put_8 (abfd, x, addr);
- }
- break;
+ if (!bfd_reloc_offset_in_range (howto, abfd, input_section, octets))
+ return bfd_reloc_outofrange;
- case 1:
- {
- short x = bfd_get_16 (abfd, addr);
- DOIT (x);
- bfd_put_16 (abfd, x, addr);
- }
- break;
+ switch (howto->size)
+ {
+ case 0:
+ {
+ char x = bfd_get_8 (abfd, addr);
+ DOIT (x);
+ bfd_put_8 (abfd, x, addr);
+ }
+ break;
- case 2:
- {
- long x = bfd_get_32 (abfd, addr);
- DOIT (x);
- bfd_put_32 (abfd, x, addr);
- }
- break;
+ case 1:
+ {
+ short x = bfd_get_16 (abfd, addr);
+ DOIT (x);
+ bfd_put_16 (abfd, (bfd_vma) x, addr);
+ }
+ break;
- default:
- abort ();
+ case 2:
+ {
+ long x = bfd_get_32 (abfd, addr);
+ DOIT (x);
+ bfd_put_32 (abfd, (bfd_vma) x, addr);
}
- }
+ break;
+
+ default:
+ abort ();
+ }
+ }
/* Now let bfd_perform_relocation finish everything up. */
return bfd_reloc_continue;
}
+/* If USER_LABEL_PREFIX is defined as "_" (see coff_arm_is_local_label_name()
+ in this file), then TARGET_UNDERSCORE should be defined, otherwise it
+ should not. */
+#ifndef TARGET_UNDERSCORE
#define TARGET_UNDERSCORE '_'
+#endif
#ifndef PCRELOFFSET
-#define PCRELOFFSET true
+#define PCRELOFFSET TRUE
#endif
/* These most certainly belong somewhere else. Just had to get rid of
- the manifest constants in the code. */
+ the manifest constants in the code. */
+
+#ifdef ARM_WINCE
-#define ARM_8 0
-#define ARM_16 1
-#define ARM_32 2
-#define ARM_26 3
+#define ARM_26D 0
+#define ARM_32 1
+#define ARM_RVA32 2
+#define ARM_26 3
+#define ARM_THUMB12 4
+#define ARM_SECTION 14
+#define ARM_SECREL 15
+
+#else
+
+#define ARM_8 0
+#define ARM_16 1
+#define ARM_32 2
+#define ARM_26 3
#define ARM_DISP8 4
#define ARM_DISP16 5
#define ARM_DISP32 6
-#define ARM_26D 7
-/* 8 is unused */
+#define ARM_26D 7
+/* 8 is unused. */
#define ARM_NEG16 9
#define ARM_NEG32 10
#define ARM_RVA32 11
#define ARM_THUMB12 13
#define ARM_THUMB23 14
-static reloc_howto_type aoutarm_std_reloc_howto[] =
-{
- /* type rs size bsz pcrel bitpos ovrf sf name part_inpl readmask setmask pcdone */
- HOWTO(ARM_8, /* type */
- 0, /* rightshift */
- 0, /* size */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield, /* complain_on_overflow */
- coff_arm_reloc, /* special_function */
- "ARM_8", /* name */
- true, /* partial_inplace */
- 0x000000ff, /* src_mask */
- 0x000000ff, /* dst_mask */
- PCRELOFFSET /* pcrel_offset */),
- HOWTO(ARM_16,
- 0,
- 1,
- 16,
- false,
- 0,
- complain_overflow_bitfield,
- coff_arm_reloc,
- "ARM_16",
- true,
- 0x0000ffff,
- 0x0000ffff,
- PCRELOFFSET),
- HOWTO(ARM_32,
- 0,
- 2,
- 32,
- false,
- 0,
- complain_overflow_bitfield,
- coff_arm_reloc,
- "ARM_32",
- true,
- 0xffffffff,
- 0xffffffff,
- PCRELOFFSET),
- HOWTO(ARM_26,
- 2,
- 2,
- 26,
- true,
- 0,
- complain_overflow_signed,
- aoutarm_fix_pcrel_26 ,
- "ARM_26",
- false,
- 0x00ffffff,
- 0x00ffffff,
- PCRELOFFSET),
- HOWTO(ARM_DISP8,
- 0,
- 0,
- 8,
- true,
- 0,
- complain_overflow_signed,
- coff_arm_reloc,
- "ARM_DISP8",
- true,
- 0x000000ff,
- 0x000000ff,
- true),
- HOWTO( ARM_DISP16,
- 0,
- 1,
- 16,
- true,
- 0,
- complain_overflow_signed,
- coff_arm_reloc,
- "ARM_DISP16",
- true,
- 0x0000ffff,
- 0x0000ffff,
- true),
- HOWTO( ARM_DISP32,
- 0,
- 2,
- 32,
- true,
- 0,
- complain_overflow_signed,
- coff_arm_reloc,
- "ARM_DISP32",
- true,
- 0xffffffff,
- 0xffffffff,
- true),
- HOWTO( ARM_26D,
- 2,
- 2,
- 26,
- false,
- 0,
- complain_overflow_signed,
- aoutarm_fix_pcrel_26_done,
- "ARM_26D",
- true,
- 0x00ffffff,
- 0x0,
- false),
- /* 8 is unused */
- {-1},
- HOWTO( ARM_NEG16,
- 0,
- -1,
- 16,
- false,
- 0,
- complain_overflow_bitfield,
- coff_arm_reloc,
- "ARM_NEG16",
- true,
- 0x0000ffff,
- 0x0000ffff,
- false),
- HOWTO( ARM_NEG32,
- 0,
- -2,
- 32,
- false,
- 0,
- complain_overflow_bitfield,
- coff_arm_reloc,
- "ARM_NEG32",
- true,
- 0xffffffff,
- 0xffffffff,
- false),
- HOWTO( ARM_RVA32,
- 0,
- 2,
- 32,
- false,
- 0,
- complain_overflow_bitfield,
- coff_arm_reloc,
- "ARM_RVA32",
- true,
- 0xffffffff,
- 0xffffffff,
- PCRELOFFSET),
- HOWTO( ARM_THUMB9,
- 1,
- 1,
- 9,
- true,
- 0,
- complain_overflow_signed,
- coff_thumb_pcrel_9 ,
- "ARM_THUMB9",
- false,
- 0x000000ff,
- 0x000000ff,
- PCRELOFFSET),
- HOWTO( ARM_THUMB12,
- 1,
- 1,
- 12,
- true,
- 0,
- complain_overflow_signed,
- coff_thumb_pcrel_12 ,
- "ARM_THUMB12",
- false,
- 0x000007ff,
- 0x000007ff,
- PCRELOFFSET),
- HOWTO( ARM_THUMB23,
- 1,
- 2,
- 23,
- true,
- 0,
- complain_overflow_signed,
- coff_thumb_pcrel_23 ,
- "ARM_THUMB23",
- false,
- 0x07ff07ff,
- 0x07ff07ff,
- PCRELOFFSET),
-};
+#endif
+
+static bfd_reloc_status_type aoutarm_fix_pcrel_26_done
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type aoutarm_fix_pcrel_26
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type coff_thumb_pcrel_12
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+#ifndef ARM_WINCE
+static bfd_reloc_status_type coff_thumb_pcrel_9
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+static bfd_reloc_status_type coff_thumb_pcrel_23
+ (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **);
+#endif
+
+static reloc_howto_type aoutarm_std_reloc_howto[] =
+ {
+#ifdef ARM_WINCE
+ HOWTO (ARM_26D,
+ 2,
+ 2,
+ 24,
+ TRUE,
+ 0,
+ complain_overflow_dont,
+ aoutarm_fix_pcrel_26_done,
+ "ARM_26D",
+ TRUE, /* partial_inplace. */
+ 0x00ffffff,
+ 0x0,
+ PCRELOFFSET),
+ HOWTO (ARM_32,
+ 0,
+ 2,
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_32",
+ TRUE, /* partial_inplace. */
+ 0xffffffff,
+ 0xffffffff,
+ PCRELOFFSET),
+ HOWTO (ARM_RVA32,
+ 0,
+ 2,
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_RVA32",
+ TRUE, /* partial_inplace. */
+ 0xffffffff,
+ 0xffffffff,
+ PCRELOFFSET),
+ HOWTO (ARM_26,
+ 2,
+ 2,
+ 24,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ aoutarm_fix_pcrel_26 ,
+ "ARM_26",
+ FALSE,
+ 0x00ffffff,
+ 0x00ffffff,
+ PCRELOFFSET),
+ HOWTO (ARM_THUMB12,
+ 1,
+ 1,
+ 11,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ coff_thumb_pcrel_12 ,
+ "ARM_THUMB12",
+ FALSE,
+ 0x000007ff,
+ 0x000007ff,
+ PCRELOFFSET),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ EMPTY_HOWTO (-1),
+ HOWTO (ARM_SECTION,
+ 0,
+ 1,
+ 16,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_SECTION",
+ TRUE, /* partial_inplace. */
+ 0x0000ffff,
+ 0x0000ffff,
+ PCRELOFFSET),
+ HOWTO (ARM_SECREL,
+ 0,
+ 2,
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_SECREL",
+ TRUE, /* partial_inplace. */
+ 0xffffffff,
+ 0xffffffff,
+ PCRELOFFSET),
+#else /* not ARM_WINCE */
+ HOWTO (ARM_8,
+ 0,
+ 0,
+ 8,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_8",
+ TRUE,
+ 0x000000ff,
+ 0x000000ff,
+ PCRELOFFSET),
+ HOWTO (ARM_16,
+ 0,
+ 1,
+ 16,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_16",
+ TRUE,
+ 0x0000ffff,
+ 0x0000ffff,
+ PCRELOFFSET),
+ HOWTO (ARM_32,
+ 0,
+ 2,
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_32",
+ TRUE,
+ 0xffffffff,
+ 0xffffffff,
+ PCRELOFFSET),
+ HOWTO (ARM_26,
+ 2,
+ 2,
+ 24,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ aoutarm_fix_pcrel_26 ,
+ "ARM_26",
+ FALSE,
+ 0x00ffffff,
+ 0x00ffffff,
+ PCRELOFFSET),
+ HOWTO (ARM_DISP8,
+ 0,
+ 0,
+ 8,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ coff_arm_reloc,
+ "ARM_DISP8",
+ TRUE,
+ 0x000000ff,
+ 0x000000ff,
+ TRUE),
+ HOWTO (ARM_DISP16,
+ 0,
+ 1,
+ 16,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ coff_arm_reloc,
+ "ARM_DISP16",
+ TRUE,
+ 0x0000ffff,
+ 0x0000ffff,
+ TRUE),
+ HOWTO (ARM_DISP32,
+ 0,
+ 2,
+ 32,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ coff_arm_reloc,
+ "ARM_DISP32",
+ TRUE,
+ 0xffffffff,
+ 0xffffffff,
+ TRUE),
+ HOWTO (ARM_26D,
+ 2,
+ 2,
+ 24,
+ FALSE,
+ 0,
+ complain_overflow_dont,
+ aoutarm_fix_pcrel_26_done,
+ "ARM_26D",
+ TRUE,
+ 0x00ffffff,
+ 0x0,
+ FALSE),
+ /* 8 is unused */
+ EMPTY_HOWTO (-1),
+ HOWTO (ARM_NEG16,
+ 0,
+ -1,
+ 16,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_NEG16",
+ TRUE,
+ 0x0000ffff,
+ 0x0000ffff,
+ FALSE),
+ HOWTO (ARM_NEG32,
+ 0,
+ -2,
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_NEG32",
+ TRUE,
+ 0xffffffff,
+ 0xffffffff,
+ FALSE),
+ HOWTO (ARM_RVA32,
+ 0,
+ 2,
+ 32,
+ FALSE,
+ 0,
+ complain_overflow_bitfield,
+ coff_arm_reloc,
+ "ARM_RVA32",
+ TRUE,
+ 0xffffffff,
+ 0xffffffff,
+ PCRELOFFSET),
+ HOWTO (ARM_THUMB9,
+ 1,
+ 1,
+ 8,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ coff_thumb_pcrel_9 ,
+ "ARM_THUMB9",
+ FALSE,
+ 0x000000ff,
+ 0x000000ff,
+ PCRELOFFSET),
+ HOWTO (ARM_THUMB12,
+ 1,
+ 1,
+ 11,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ coff_thumb_pcrel_12 ,
+ "ARM_THUMB12",
+ FALSE,
+ 0x000007ff,
+ 0x000007ff,
+ PCRELOFFSET),
+ HOWTO (ARM_THUMB23,
+ 1,
+ 2,
+ 22,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ coff_thumb_pcrel_23 ,
+ "ARM_THUMB23",
+ FALSE,
+ 0x07ff07ff,
+ 0x07ff07ff,
+ PCRELOFFSET)
+#endif /* not ARM_WINCE */
+ };
+
+#define NUM_RELOCS NUM_ELEM (aoutarm_std_reloc_howto)
+
#ifdef COFF_WITH_PE
-/* Return true if this relocation should
- appear in the output .reloc section. */
+/* Return TRUE if this relocation should
+ appear in the output .reloc section. */
-static boolean in_reloc_p (abfd, howto)
- bfd * abfd;
- reloc_howto_type *howto;
+static bfd_boolean
+in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED,
+ reloc_howto_type * howto)
{
- return !howto->pc_relative && howto->type != 11;
-}
+ return !howto->pc_relative && howto->type != ARM_RVA32;
+}
#endif
-
-#define RTYPE2HOWTO(cache_ptr, dst) \
- (cache_ptr)->howto = aoutarm_std_reloc_howto + (dst)->r_type;
+#define RTYPE2HOWTO(cache_ptr, dst) \
+ (cache_ptr)->howto = \
+ (dst)->r_type < NUM_RELOCS \
+ ? aoutarm_std_reloc_howto + (dst)->r_type \
+ : NULL
#define coff_rtype_to_howto coff_arm_rtype_to_howto
static reloc_howto_type *
-coff_arm_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
- bfd *abfd;
- asection *sec;
- struct internal_reloc *rel;
- struct coff_link_hash_entry *h;
- struct internal_syment *sym;
- bfd_vma *addendp;
+coff_arm_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec,
+ struct internal_reloc *rel,
+ struct coff_link_hash_entry *h ATTRIBUTE_UNUSED,
+ struct internal_syment *sym ATTRIBUTE_UNUSED,
+ bfd_vma *addendp)
{
- reloc_howto_type *howto;
+ reloc_howto_type * howto;
+
+ if (rel->r_type >= NUM_RELOCS)
+ return NULL;
howto = aoutarm_std_reloc_howto + rel->r_type;
if (rel->r_type == ARM_RVA32)
- {
- *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
- }
+ *addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
- /* The relocation_section function will skip pcrel_offset relocs
- when doing a relocateable link. However, we want to convert
- ARM26 to ARM26D relocs if possible. We return a fake howto in
- this case without pcrel_offset set, and adjust the addend to
- compensate. */
- if (rel->r_type == ARM_26
- && h != NULL
- && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak)
- && h->root.u.def.section->output_section == sec->output_section)
+#if defined COFF_WITH_PE && defined ARM_WINCE
+ if (rel->r_type == ARM_SECREL)
{
- static reloc_howto_type fake_arm26_reloc =
- HOWTO (ARM_26,
- 2,
- 2,
- 26,
- true,
- 0,
- complain_overflow_signed,
- aoutarm_fix_pcrel_26 ,
- "ARM_26",
- false,
- 0x00ffffff,
- 0x00ffffff,
- false);
+ bfd_vma osect_vma;
+
+ if (h && (h->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak))
+ osect_vma = h->root.u.def.section->output_section->vma;
+ else
+ {
+ int i;
+
+ /* Sigh, the only way to get the section to offset against
+ is to find it the hard way. */
+
+ for (sec = abfd->sections, i = 1; i < sym->n_scnum; i++)
+ sec = sec->next;
- *addendp -= rel->r_vaddr - sec->vma;
- return & fake_arm26_reloc;
+ osect_vma = sec->output_section->vma;
+ }
+
+ *addendp -= osect_vma;
}
+#endif
return howto;
-
}
-/* Used by the assembler. */
+
+/* Used by the assembler. */
static bfd_reloc_status_type
-aoutarm_fix_pcrel_26_done (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
+aoutarm_fix_pcrel_26_done (bfd *abfd ATTRIBUTE_UNUSED,
+ arelent *reloc_entry ATTRIBUTE_UNUSED,
+ asymbol *symbol ATTRIBUTE_UNUSED,
+ void * data ATTRIBUTE_UNUSED,
+ asection *input_section ATTRIBUTE_UNUSED,
+ bfd *output_bfd ATTRIBUTE_UNUSED,
+ char **error_message ATTRIBUTE_UNUSED)
{
/* This is dead simple at present. */
return bfd_reloc_ok;
}
-/* Used by the assembler. */
+/* Used by the assembler. */
static bfd_reloc_status_type
-aoutarm_fix_pcrel_26 (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
+aoutarm_fix_pcrel_26 (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
bfd_size_type addr = reloc_entry->address;
long target = bfd_get_32 (abfd, (bfd_byte *) data + addr);
bfd_reloc_status_type flag = bfd_reloc_ok;
-
- /* If this is an undefined symbol, return error */
- if (symbol->section == &bfd_und_section
+
+ /* If this is an undefined symbol, return error. */
+ if (bfd_is_und_section (symbol->section)
&& (symbol->flags & BSF_WEAK) == 0)
return output_bfd ? bfd_reloc_continue : bfd_reloc_undefined;
return bfd_reloc_continue;
relocation = (target & 0x00ffffff) << 2;
- relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend */
+ relocation = (relocation ^ 0x02000000) - 0x02000000; /* Sign extend. */
relocation += symbol->value;
relocation += symbol->section->output_section->vma;
relocation += symbol->section->output_offset;
relocation -= input_section->output_section->vma;
relocation -= input_section->output_offset;
relocation -= addr;
-
+
if (relocation & 3)
return bfd_reloc_overflow;
- /* Check for overflow */
+ /* Check for overflow. */
if (relocation & 0x02000000)
{
- if ((relocation & ~0x03ffffff) != ~0x03ffffff)
+ if ((relocation & ~ (bfd_vma) 0x03ffffff) != ~ (bfd_vma) 0x03ffffff)
flag = bfd_reloc_overflow;
}
- else if (relocation & ~0x03ffffff)
+ else if (relocation & ~(bfd_vma) 0x03ffffff)
flag = bfd_reloc_overflow;
target &= ~0x00ffffff;
target |= (relocation >> 2) & 0x00ffffff;
- bfd_put_32 (abfd, target, (bfd_byte *) data + addr);
+ bfd_put_32 (abfd, (bfd_vma) target, (bfd_byte *) data + addr);
/* Now the ARM magic... Change the reloc type so that it is marked as done.
Strictly this is only necessary if we are doing a partial relocation. */
return flag;
}
-typedef enum {bunknown, b9, b12, b23} thumb_pcrel_branchtype;
-
static bfd_reloc_status_type
-coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message, btype)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
- thumb_pcrel_branchtype btype;
+coff_thumb_pcrel_common (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message ATTRIBUTE_UNUSED,
+ thumb_pcrel_branchtype btype)
{
- bfd_vma relocation;
+ bfd_vma relocation = 0;
bfd_size_type addr = reloc_entry->address;
long target = bfd_get_32 (abfd, (bfd_byte *) data + addr);
bfd_reloc_status_type flag = bfd_reloc_ok;
/* NOTE: This routine is currently used by GAS, but not by the link
phase. */
-
switch (btype)
{
case b9:
default:
abort ();
}
-
- /* If this is an undefined symbol, return error */
- if (symbol->section == &bfd_und_section
+
+ /* If this is an undefined symbol, return error. */
+ if (bfd_is_und_section (symbol->section)
&& (symbol->flags & BSF_WEAK) == 0)
return output_bfd ? bfd_reloc_continue : bfd_reloc_undefined;
else
relocation = ((target & 0x7ff) << 12) | ((target & 0x07ff0000) >> 15);
break;
+
+ default:
+ abort ();
}
- relocation = (relocation ^ signbit) - signbit; /* Sign extend */
+ relocation = (relocation ^ signbit) - signbit; /* Sign extend. */
relocation += symbol->value;
relocation += symbol->section->output_section->vma;
relocation += symbol->section->output_offset;
if (relocation & 1)
return bfd_reloc_overflow;
- /* Check for overflow */
+ /* Check for overflow. */
if (relocation & signbit)
{
if ((relocation & ~offmsk) != ~offmsk)
case b23:
if (bfd_big_endian (abfd))
- target |= ((relocation & 0xfff) >> 1) | ((relocation << 4) & 0x07ff0000);
+ target |= (((relocation & 0xfff) >> 1)
+ | ((relocation << 4) & 0x07ff0000));
else
- target |= ((relocation & 0xffe) << 15) | ((relocation >> 12) & 0x7ff);
+ target |= (((relocation & 0xffe) << 15)
+ | ((relocation >> 12) & 0x7ff));
break;
+
+ default:
+ abort ();
}
- bfd_put_32 (abfd, target, (bfd_byte *) data + addr);
+ bfd_put_32 (abfd, (bfd_vma) target, (bfd_byte *) data + addr);
/* Now the ARM magic... Change the reloc type so that it is marked as done.
Strictly this is only necessary if we are doing a partial relocation. */
reloc_entry->howto = & aoutarm_std_reloc_howto [ARM_26D];
-
- /* TODO: We should possibly have DONE entries for the THUMB PCREL relocations */
+
+ /* TODO: We should possibly have DONE entries for the THUMB PCREL relocations. */
return flag;
}
+#ifndef ARM_WINCE
static bfd_reloc_status_type
-coff_thumb_pcrel_23 (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
+coff_thumb_pcrel_23 (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message)
{
return coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data,
- input_section, output_bfd, error_message, b23);
+ input_section, output_bfd, error_message,
+ b23);
}
static bfd_reloc_status_type
-coff_thumb_pcrel_12 (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
+coff_thumb_pcrel_9 (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message)
{
return coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data,
- input_section, output_bfd, error_message, b12);
+ input_section, output_bfd, error_message,
+ b9);
}
+#endif /* not ARM_WINCE */
static bfd_reloc_status_type
-coff_thumb_pcrel_9 (abfd, reloc_entry, symbol, data, input_section,
- output_bfd, error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
+coff_thumb_pcrel_12 (bfd *abfd,
+ arelent *reloc_entry,
+ asymbol *symbol,
+ void * data,
+ asection *input_section,
+ bfd *output_bfd,
+ char **error_message)
{
return coff_thumb_pcrel_common (abfd, reloc_entry, symbol, data,
- input_section, output_bfd, error_message, b9);
+ input_section, output_bfd, error_message,
+ b12);
}
-
-static CONST struct reloc_howto_struct *
-arm_reloc_type_lookup(abfd,code)
- bfd *abfd;
- bfd_reloc_code_real_type code;
+static reloc_howto_type *
+coff_arm_reloc_type_lookup (bfd * abfd, bfd_reloc_code_real_type code)
{
-#define ASTD(i,j) case i: return &aoutarm_std_reloc_howto[j]
+#define ASTD(i,j) case i: return aoutarm_std_reloc_howto + j
+
if (code == BFD_RELOC_CTOR)
- switch (bfd_get_arch_info (abfd)->bits_per_address)
+ switch (bfd_arch_bits_per_address (abfd))
{
case 32:
- code = BFD_RELOC_32;
- break;
- default: return (CONST struct reloc_howto_struct *) 0;
+ code = BFD_RELOC_32;
+ break;
+ default:
+ return NULL;
}
switch (code)
{
- ASTD (BFD_RELOC_8, ARM_8);
- ASTD (BFD_RELOC_16, ARM_16);
- ASTD (BFD_RELOC_32, ARM_32);
- ASTD (BFD_RELOC_ARM_PCREL_BRANCH, ARM_26);
- ASTD (BFD_RELOC_8_PCREL, ARM_DISP8);
- ASTD (BFD_RELOC_16_PCREL, ARM_DISP16);
- ASTD (BFD_RELOC_32_PCREL, ARM_DISP32);
- ASTD (BFD_RELOC_RVA, ARM_RVA32);
+#ifdef ARM_WINCE
+ ASTD (BFD_RELOC_32, ARM_32);
+ ASTD (BFD_RELOC_RVA, ARM_RVA32);
+ ASTD (BFD_RELOC_ARM_PCREL_BRANCH, ARM_26);
+ ASTD (BFD_RELOC_THUMB_PCREL_BRANCH12, ARM_THUMB12);
+ ASTD (BFD_RELOC_32_SECREL, ARM_SECREL);
+#else
+ ASTD (BFD_RELOC_8, ARM_8);
+ ASTD (BFD_RELOC_16, ARM_16);
+ ASTD (BFD_RELOC_32, ARM_32);
+ ASTD (BFD_RELOC_ARM_PCREL_BRANCH, ARM_26);
+ ASTD (BFD_RELOC_ARM_PCREL_BLX, ARM_26);
+ ASTD (BFD_RELOC_8_PCREL, ARM_DISP8);
+ ASTD (BFD_RELOC_16_PCREL, ARM_DISP16);
+ ASTD (BFD_RELOC_32_PCREL, ARM_DISP32);
+ ASTD (BFD_RELOC_RVA, ARM_RVA32);
ASTD (BFD_RELOC_THUMB_PCREL_BRANCH9, ARM_THUMB9);
ASTD (BFD_RELOC_THUMB_PCREL_BRANCH12, ARM_THUMB12);
ASTD (BFD_RELOC_THUMB_PCREL_BRANCH23, ARM_THUMB23);
- default: return (CONST struct reloc_howto_struct *) 0;
+ ASTD (BFD_RELOC_THUMB_PCREL_BLX, ARM_THUMB23);
+#endif
+ default: return NULL;
}
}
+static reloc_howto_type *
+coff_arm_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
+ const char *r_name)
+{
+ unsigned int i;
+
+ for (i = 0;
+ i < (sizeof (aoutarm_std_reloc_howto)
+ / sizeof (aoutarm_std_reloc_howto[0]));
+ i++)
+ if (aoutarm_std_reloc_howto[i].name != NULL
+ && strcasecmp (aoutarm_std_reloc_howto[i].name, r_name) == 0)
+ return &aoutarm_std_reloc_howto[i];
-#define coff_bfd_reloc_type_lookup arm_reloc_type_lookup
+ return NULL;
+}
-#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
-#define COFF_PAGE_SIZE 0x1000
-/* Turn a howto into a reloc nunmber */
+#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
+#define COFF_PAGE_SIZE 0x1000
+/* Turn a howto into a reloc nunmber. */
#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
-#define BADMAG(x) ARMBADMAG(x)
-#define ARM 1 /* Customize coffcode.h */
+#define BADMAG(x) ARMBADMAG(x)
+#define ARM 1 /* Customize coffcode.h. */
+
+#ifndef ARM_WINCE
+/* Make sure that the 'r_offset' field is copied properly
+ so that identical binaries will compare the same. */
+#define SWAP_IN_RELOC_OFFSET H_GET_32
+#define SWAP_OUT_RELOC_OFFSET H_PUT_32
+#endif
-/* The set of global variables that mark the total size of each kind
- of glue required. */
-static long int global_thumb_glue_size = 0;
-static long int global_arm_glue_size = 0;
+/* Extend the coff_link_hash_table structure with a few ARM specific fields.
+ This allows us to store global data here without actually creating any
+ global variables, which is a no-no in the BFD world. */
+struct coff_arm_link_hash_table
+ {
+ /* The original coff_link_hash_table structure. MUST be first field. */
+ struct coff_link_hash_table root;
-static bfd * bfd_of_glue_owner = 0;
+ /* The size in bytes of the section containing the Thumb-to-ARM glue. */
+ bfd_size_type thumb_glue_size;
-/* some typedefs for holding instructions */
-typedef unsigned long int insn32;
-typedef unsigned short int insn16;
+ /* The size in bytes of the section containing the ARM-to-Thumb glue. */
+ bfd_size_type arm_glue_size;
+
+ /* An arbitrary input BFD chosen to hold the glue sections. */
+ bfd * bfd_of_glue_owner;
+
+ /* Support interworking with old, non-interworking aware ARM code. */
+ int support_old_code;
+};
+
+/* Get the ARM coff linker hash table from a link_info structure. */
+#define coff_arm_hash_table(info) \
+ ((struct coff_arm_link_hash_table *) ((info)->hash))
+
+/* Create an ARM coff linker hash table. */
+
+static struct bfd_link_hash_table *
+coff_arm_link_hash_table_create (bfd * abfd)
+{
+ struct coff_arm_link_hash_table * ret;
+ size_t amt = sizeof (struct coff_arm_link_hash_table);
+
+ ret = bfd_zmalloc (amt);
+ if (ret == NULL)
+ return NULL;
+
+ if (!_bfd_coff_link_hash_table_init (&ret->root,
+ abfd,
+ _bfd_coff_link_hash_newfunc,
+ sizeof (struct coff_link_hash_entry)))
+ {
+ free (ret);
+ return NULL;
+ }
+
+ return & ret->root.root;
+}
+static bfd_boolean
+arm_emit_base_file_entry (struct bfd_link_info *info,
+ bfd *output_bfd,
+ asection *input_section,
+ bfd_vma reloc_offset)
+{
+ bfd_vma addr = (reloc_offset
+ - input_section->vma
+ + input_section->output_offset
+ + input_section->output_section->vma);
+
+ if (coff_data (output_bfd)->pe)
+ addr -= pe_data (output_bfd)->pe_opthdr.ImageBase;
+ if (fwrite (&addr, sizeof (addr), 1, (FILE *) info->base_file) == 1)
+ return TRUE;
+
+ bfd_set_error (bfd_error_system_call);
+ return FALSE;
+}
\f
+#ifndef ARM_WINCE
/* The thumb form of a long branch is a bit finicky, because the offset
encoding is split over two fields, each in it's own instruction. They
- can occur in any order. So given a thumb form of long branch, and an
+ can occur in any order. So given a thumb form of long branch, and an
offset, insert the offset into the thumb branch and return finished
- instruction.
+ instruction.
- It takes two thumb instructions to encode the target address. Each has
- 11 bits to invest. The upper 11 bits are stored in one (identifed by
- H-0.. see below), the lower 11 bits are stored in the other (identified
- by H-1).
+ It takes two thumb instructions to encode the target address. Each has
+ 11 bits to invest. The upper 11 bits are stored in one (identified by
+ H-0.. see below), the lower 11 bits are stored in the other (identified
+ by H-1).
- Combine together and shifted left by 1 (it's a half word address) and
+ Combine together and shifted left by 1 (it's a half word address) and
there you have it.
Op: 1111 = F,
Op: 1111 = F,
H-1, lower address-0 = 800
- They can be ordered either way, but the arm tools I've seen always put
+ They can be ordered either way, but the arm tools I've seen always put
the lower one first. It probably doesn't matter. krk@cygnus.com
XXX: Actually the order does matter. The second instruction (H-1)
moves the computed address into the PC, so it must be the second one
in the sequence. The problem, however is that whilst little endian code
stores the instructions in HI then LOW order, big endian code does the
- reverse. nickc@cygnus.com */
+ reverse. nickc@cygnus.com. */
#define LOW_HI_ORDER 0xF800F000
#define HI_LOW_ORDER 0xF000F800
static insn32
-insert_thumb_branch (br_insn, rel_off)
- insn32 br_insn;
- int rel_off;
+insert_thumb_branch (insn32 br_insn, int rel_off)
{
unsigned int low_bits;
unsigned int high_bits;
+ BFD_ASSERT ((rel_off & 1) != 1);
- BFD_ASSERT((rel_off & 1) != 1);
-
- rel_off >>= 1; /* half word aligned address */
- low_bits = rel_off & 0x000007FF; /* the bottom 11 bits */
- high_bits = ( rel_off >> 11 ) & 0x000007FF; /* the top 11 bits */
+ rel_off >>= 1; /* Half word aligned address. */
+ low_bits = rel_off & 0x000007FF; /* The bottom 11 bits. */
+ high_bits = (rel_off >> 11) & 0x000007FF; /* The top 11 bits. */
if ((br_insn & LOW_HI_ORDER) == LOW_HI_ORDER)
br_insn = LOW_HI_ORDER | (low_bits << 16) | high_bits;
else if ((br_insn & HI_LOW_ORDER) == HI_LOW_ORDER)
br_insn = HI_LOW_ORDER | (high_bits << 16) | low_bits;
else
- abort(); /* error - not a valid branch instruction form */
-
- /* FIXME: abort is probably not the right call. krk@cygnus.com */
+ /* FIXME: the BFD library should never abort except for internal errors
+ - it should return an error status. */
+ abort (); /* Error - not a valid branch instruction form. */
return br_insn;
}
\f
static struct coff_link_hash_entry *
-find_thumb_glue (info, name, input_bfd)
- struct bfd_link_info * info;
- char * name;
- bfd * input_bfd;
+find_thumb_glue (struct bfd_link_info *info,
+ const char *name,
+ bfd *input_bfd)
{
- char *tmp_name = 0;
+ char *tmp_name;
+ struct coff_link_hash_entry *myh;
+ size_t amt = strlen (name) + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1;
- struct coff_link_hash_entry *myh = 0;
-
- tmp_name = ((char *)
- bfd_malloc (strlen (name) + strlen (THUMB2ARM_GLUE_ENTRY_NAME)));
+ tmp_name = bfd_malloc (amt);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
-
- myh = coff_link_hash_lookup (coff_hash_table (info),
- tmp_name,
- false, false, true);
+
+ myh = coff_link_hash_lookup
+ (coff_hash_table (info), tmp_name, FALSE, FALSE, TRUE);
+
if (myh == NULL)
- {
- _bfd_error_handler ("%s: unable to find THUMB glue '%s' for `%s'",
- bfd_get_filename (input_bfd), tmp_name, name);
- }
-
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unable to find THUMB glue '%s' for `%s'"),
+ input_bfd, tmp_name, name);
+
free (tmp_name);
return myh;
}
+#endif /* not ARM_WINCE */
static struct coff_link_hash_entry *
-find_arm_glue (info, name, input_bfd)
- struct bfd_link_info * info;
- char * name;
- bfd * input_bfd;
+find_arm_glue (struct bfd_link_info *info,
+ const char *name,
+ bfd *input_bfd)
{
- char *tmp_name = 0;
- struct coff_link_hash_entry *myh = 0;
+ char *tmp_name;
+ struct coff_link_hash_entry * myh;
+ size_t amt = strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1;
- tmp_name = ((char *)
- bfd_malloc (strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME)));
+ tmp_name = bfd_malloc (amt);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
-
- myh = coff_link_hash_lookup (coff_hash_table (info),
- tmp_name,
- false, false, true);
+
+ myh = coff_link_hash_lookup
+ (coff_hash_table (info), tmp_name, FALSE, FALSE, TRUE);
if (myh == NULL)
- {
- _bfd_error_handler ("%s: unable to find ARM glue '%s' for `%s'",
- bfd_get_filename (input_bfd), tmp_name, name);
- }
-
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unable to find ARM glue '%s' for `%s'"),
+ input_bfd, tmp_name, name);
+
free (tmp_name);
return myh;
ldr r12, __func_addr
bx r12
__func_addr:
- .word func @ behave as if you saw a ARM_32 reloc
-
- ldr ip,8 <__func_addr> e59fc000
- bx ip e12fff1c
- .word func 00000001
-
+ .word func @ behave as if you saw a ARM_32 reloc
*/
#define ARM2THUMB_GLUE_SIZE 12
-static insn32
- a2t1_ldr_insn = 0xe59fc000,
- a2t2_bx_r12_insn = 0xe12fff1c,
- a2t3_func_addr_insn = 0x00000001;
+static const insn32 a2t1_ldr_insn = 0xe59fc000;
+static const insn32 a2t2_bx_r12_insn = 0xe12fff1c;
+static const insn32 a2t3_func_addr_insn = 0x00000001;
/*
- Thumb->ARM:
-
- .thumb
- .align 2
- __func_from_thumb:
- bx pc
- nop
- .arm
- __func_change_to_arm:
- b func
-
-
- bx pc 4778
- nop 0000
- b func eafffffe
-
+ Thumb->ARM: Thumb->(non-interworking aware) ARM
+
+ .thumb .thumb
+ .align 2 .align 2
+ __func_from_thumb: __func_from_thumb:
+ bx pc push {r6, lr}
+ nop ldr r6, __func_addr
+ .arm mov lr, pc
+ __func_change_to_arm: bx r6
+ b func .arm
+ __func_back_to_thumb:
+ ldmia r13! {r6, lr}
+ bx lr
+ __func_addr:
+ .word func
*/
-#define THUMB2ARM_GLUE_SIZE 8
-static insn16
- t2a1_bx_pc_insn = 0x4778,
- t2a2_noop_insn = 0x46c0;
-static insn32
- t2a3_b_insn = 0xea000000;
+#define THUMB2ARM_GLUE_SIZE (globals->support_old_code ? 20 : 8)
+#ifndef ARM_WINCE
+static const insn16 t2a1_bx_pc_insn = 0x4778;
+static const insn16 t2a2_noop_insn = 0x46c0;
+static const insn32 t2a3_b_insn = 0xea000000;
+
+static const insn16 t2a1_push_insn = 0xb540;
+static const insn16 t2a2_ldr_insn = 0x4e03;
+static const insn16 t2a3_mov_insn = 0x46fe;
+static const insn16 t2a4_bx_insn = 0x4730;
+static const insn32 t2a5_pop_insn = 0xe8bd4040;
+static const insn32 t2a6_bx_insn = 0xe12fff1e;
+#endif
/* TODO:
We should really create new local (static) symbols in destination
instruction we should generate a trampoline stub (needed to
address the complete 32bit address space). */
-/* The standard COFF backend linker does not cope with the special
+/* The standard COFF backend linker does not cope with the special
Thumb BRANCH23 relocation. The alternative would be to split the
- BRANCH23 into seperate HI23 and LO23 relocations. However, it is a
- bit simpler simply providing our own relocation driver. */
+ BRANCH23 into separate HI23 and LO23 relocations. However, it is a
+ bit simpler simply providing our own relocation driver. */
/* The reloc processing routine for the ARM/Thumb COFF linker. NOTE:
This code is a very slightly modified copy of
ARM/Thumb builds. It is only the code marked THUMBEXTENSION that
is different from the original. */
-static boolean
-coff_arm_relocate_section (output_bfd, info, input_bfd, input_section,
- contents, relocs, syms, sections)
- bfd *output_bfd;
- struct bfd_link_info *info;
- bfd *input_bfd;
- asection *input_section;
- bfd_byte *contents;
- struct internal_reloc *relocs;
- struct internal_syment *syms;
- asection **sections;
+static bfd_boolean
+coff_arm_relocate_section (bfd *output_bfd,
+ struct bfd_link_info *info,
+ bfd *input_bfd,
+ asection *input_section,
+ bfd_byte *contents,
+ struct internal_reloc *relocs,
+ struct internal_syment *syms,
+ asection **sections)
{
- struct internal_reloc *rel;
- struct internal_reloc *relend;
+ struct internal_reloc * rel;
+ struct internal_reloc * relend;
+#ifndef ARM_WINCE
+ bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
+#endif
rel = relocs;
relend = rel + input_section->reloc_count;
for (; rel < relend; rel++)
{
- int done = 0;
- long symndx;
- struct coff_link_hash_entry *h;
- struct internal_syment *sym;
- bfd_vma addend;
- bfd_vma val;
- reloc_howto_type *howto;
- bfd_reloc_status_type rstat;
- bfd_vma h_val;
+ int done = 0;
+ long symndx;
+ struct coff_link_hash_entry * h;
+ struct internal_syment * sym;
+ bfd_vma addend;
+ bfd_vma val;
+ reloc_howto_type * howto;
+ bfd_reloc_status_type rstat;
+ bfd_vma h_val;
symndx = rel->r_symndx;
sym = NULL;
}
else
- {
+ {
h = obj_coff_sym_hashes (input_bfd)[symndx];
sym = syms + symndx;
}
/* COFF treats common symbols in one of two ways. Either the
- size of the symbol is included in the section contents, or it
- is not. We assume that the size is not included, and force
- the rtype_to_howto function to adjust the addend as needed. */
+ size of the symbol is included in the section contents, or it
+ is not. We assume that the size is not included, and force
+ the rtype_to_howto function to adjust the addend as needed. */
if (sym != NULL && sym->n_scnum != 0)
addend = - sym->n_value;
else
addend = 0;
-
- howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
+ howto = coff_rtype_to_howto (input_bfd, input_section, rel, h,
sym, &addend);
if (howto == NULL)
- return false;
+ return FALSE;
+
+ /* The relocation_section function will skip pcrel_offset relocs
+ when doing a relocatable link. However, we want to convert
+ ARM_26 to ARM_26D relocs if possible. We return a fake howto in
+ this case without pcrel_offset set, and adjust the addend to
+ compensate. 'partial_inplace' is also set, since we want 'done'
+ relocations to be reflected in section's data. */
+ if (rel->r_type == ARM_26
+ && h != NULL
+ && bfd_link_relocatable (info)
+ && (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ && (h->root.u.def.section->output_section
+ == input_section->output_section))
+ {
+ static reloc_howto_type fake_arm26_reloc =
+ HOWTO (ARM_26,
+ 2,
+ 2,
+ 24,
+ TRUE,
+ 0,
+ complain_overflow_signed,
+ aoutarm_fix_pcrel_26 ,
+ "ARM_26",
+ TRUE,
+ 0x00ffffff,
+ 0x00ffffff,
+ FALSE);
+
+ addend -= rel->r_vaddr - input_section->vma;
+#ifdef ARM_WINCE
+ /* FIXME: I don't know why, but the hack is necessary for correct
+ generation of bl's instruction offset. */
+ addend -= 8;
+#endif
+ howto = & fake_arm26_reloc;
+ }
- /* If we are doing a relocateable link, then we can just ignore
- a PC relative reloc that is pcrel_offset. It will already
- have the correct value. If this is not a relocateable link,
- then we should ignore the symbol value. */
+#ifdef ARM_WINCE
+ /* MS ARM-CE makes the reloc relative to the opcode's pc, not
+ the next opcode's pc, so is off by one. */
+ if (howto->pc_relative && !bfd_link_relocatable (info))
+ addend -= 8;
+#endif
+
+ /* If we are doing a relocatable link, then we can just ignore
+ a PC relative reloc that is pcrel_offset. It will already
+ have the correct value. If this is not a relocatable link,
+ then we should ignore the symbol value. */
if (howto->pc_relative && howto->pcrel_offset)
- {
- if (info->relocateable)
- continue;
- if (sym != NULL && sym->n_scnum != 0)
- addend += sym->n_value;
- }
-
- /* If we are doing a relocateable link, then we can just ignore
- a PC relative reloc that is pcrel_offset. It will already
- have the correct value. */
- if (info->relocateable
- && howto->pc_relative
- && howto->pcrel_offset)
- continue;
+ {
+ if (bfd_link_relocatable (info))
+ continue;
+ /* FIXME - it is not clear which targets need this next test
+ and which do not. It is known that it is needed for the
+ VxWorks targets but it is also known that it was suppressed
+ for other ARM targets. This ought to be sorted out one day. */
+#ifdef ARM_COFF_BUGFIX
+ /* We must not ignore the symbol value. If the symbol is
+ within the same section, the relocation should have already
+ been fixed, but if it is not, we'll be handed a reloc into
+ the beginning of the symbol's section, so we must not cancel
+ out the symbol's value, otherwise we'll be adding it in
+ twice. */
+ if (sym != NULL && sym->n_scnum != 0)
+ addend += sym->n_value;
+#endif
+ }
val = 0;
else
{
sec = sections[symndx];
- val = (sec->output_section->vma
+ val = (sec->output_section->vma
+ sec->output_offset
+ sym->n_value
- sec->vma);
}
else
{
-#if 1 /* THUMBEXTENSION */
- /* We don't output the stubs if we are generating a
- relocatable output file, since we may as well leave the
- stub generation to the final linker pass. If we fail to
+ /* We don't output the stubs if we are generating a
+ relocatable output file, since we may as well leave the
+ stub generation to the final linker pass. If we fail to
verify that the name is defined, we'll try to build stubs
- for an undefined name... */
- if (! info->relocateable
+ for an undefined name... */
+ if (! bfd_link_relocatable (info)
&& ( h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak))
- {
- asection * sec;
+ {
asection * h_sec = h->root.u.def.section;
const char * name = h->root.root.string;
-
+
/* h locates the symbol referenced in the reloc. */
h_val = (h->root.u.def.value
+ h_sec->output_section->vma
+ h_sec->output_offset);
- if (howto->type == ARM_26)
- {
- if ( h->class == C_THUMBSTATFUNC
- || h->class == C_THUMBEXTFUNC)
+ if (howto->type == ARM_26)
+ {
+ if ( h->symbol_class == C_THUMBSTATFUNC
+ || h->symbol_class == C_THUMBEXTFUNC)
{
- /* Arm code calling a Thumb function */
- signed long int final_disp;
- unsigned long int tmp;
- long int my_offset;
- long int offset;
- asection * s = 0;
- unsigned long int return_address;
- long int ret_offset;
- long int disp;
- struct coff_link_hash_entry * myh;
+ /* Arm code calling a Thumb function. */
+ unsigned long int tmp;
+ bfd_vma my_offset;
+ asection * s;
+ long int ret_offset;
+ struct coff_link_hash_entry * myh;
+ struct coff_arm_link_hash_table * globals;
myh = find_arm_glue (info, name, input_bfd);
if (myh == NULL)
- return false;
+ return FALSE;
+
+ globals = coff_arm_hash_table (info);
+
+ BFD_ASSERT (globals != NULL);
+ BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
- s = bfd_get_section_by_name (bfd_of_glue_owner,
+ s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
+ BFD_ASSERT (s->output_section != NULL);
if ((my_offset & 0x01) == 0x01)
{
- if (INTERWORK_SET (h_sec->owner) && ! INTERWORK_FLAG (h_sec->owner))
- _bfd_error_handler ("%s: warning: interworking not enabled.",
- bfd_get_filename (h_sec->owner));
-
+ if (h_sec->owner != NULL
+ && INTERWORK_SET (h_sec->owner)
+ && ! INTERWORK_FLAG (h_sec->owner))
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB(%s): warning: interworking not enabled; "
+ "first occurrence: %pB: arm call to thumb"),
+ h_sec->owner, name, input_bfd);
+
--my_offset;
myh->root.u.def.value = my_offset;
- bfd_put_32 (output_bfd, a2t1_ldr_insn, s->contents + my_offset);
-
- bfd_put_32 (output_bfd, a2t2_bx_r12_insn, s->contents + my_offset + 4);
-
+ bfd_put_32 (output_bfd, (bfd_vma) a2t1_ldr_insn,
+ s->contents + my_offset);
+
+ bfd_put_32 (output_bfd, (bfd_vma) a2t2_bx_r12_insn,
+ s->contents + my_offset + 4);
+
/* It's a thumb address. Add the low order bit. */
- bfd_put_32 (output_bfd, h_val | a2t3_func_addr_insn, s->contents + my_offset + 8);
+ bfd_put_32 (output_bfd, h_val | a2t3_func_addr_insn,
+ s->contents + my_offset + 8);
+
+ if (info->base_file
+ && !arm_emit_base_file_entry (info, output_bfd,
+ s, my_offset + 8))
+ return FALSE;
}
- BFD_ASSERT (my_offset <= global_arm_glue_size);
+ BFD_ASSERT (my_offset <= globals->arm_glue_size);
+
+ tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr
+ - input_section->vma);
- tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr - input_section->vma);
-
tmp = tmp & 0xFF000000;
-
- /* Somehow these are both 4 too far, so subtract 8. */
+
+ /* Somehow these are both 4 too far, so subtract 8. */
ret_offset =
s->output_offset
- + my_offset
+ + my_offset
+ s->output_section->vma
- (input_section->output_offset
- + input_section->output_section->vma
+ + input_section->output_section->vma
+ rel->r_vaddr)
- 8;
tmp = tmp | ((ret_offset >> 2) & 0x00FFFFFF);
-
- bfd_put_32 (output_bfd, tmp, contents + rel->r_vaddr - input_section->vma);
-
+
+ bfd_put_32 (output_bfd, (bfd_vma) tmp,
+ contents + rel->r_vaddr - input_section->vma);
done = 1;
}
- }
-
- /* Note: We used to check for ARM_THUMB9 and ARM_THUMB12 */
- else if (howto->type == ARM_THUMB23)
- {
- if ( h->class == C_EXT
- || h->class == C_STAT
- || h->class == C_LABEL)
+ }
+
+#ifndef ARM_WINCE
+ /* Note: We used to check for ARM_THUMB9 and ARM_THUMB12. */
+ else if (howto->type == ARM_THUMB23)
+ {
+ if ( h->symbol_class == C_EXT
+ || h->symbol_class == C_STAT
+ || h->symbol_class == C_LABEL)
{
- /* Thumb code calling an ARM function */
- unsigned long int return_address;
- signed long int final_disp;
- asection * s = 0;
- long int my_offset;
- unsigned long int tmp;
- long int ret_offset;
- struct coff_link_hash_entry * myh;
+ /* Thumb code calling an ARM function. */
+ asection * s = 0;
+ bfd_vma my_offset;
+ unsigned long int tmp;
+ long int ret_offset;
+ struct coff_link_hash_entry * myh;
+ struct coff_arm_link_hash_table * globals;
myh = find_thumb_glue (info, name, input_bfd);
if (myh == NULL)
- return false;
+ return FALSE;
+
+ globals = coff_arm_hash_table (info);
+
+ BFD_ASSERT (globals != NULL);
+ BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
my_offset = myh->root.u.def.value;
-
- s = bfd_get_section_by_name (bfd_of_glue_owner,
+
+ s = bfd_get_section_by_name (globals->bfd_of_glue_owner,
THUMB2ARM_GLUE_SECTION_NAME);
-
+
BFD_ASSERT (s != NULL);
BFD_ASSERT (s->contents != NULL);
-
+ BFD_ASSERT (s->output_section != NULL);
+
if ((my_offset & 0x01) == 0x01)
{
- if (INTERWORK_SET (h_sec->owner) && ! INTERWORK_FLAG (h_sec->owner))
- _bfd_error_handler ("%s: warning: interworking not enabled.",
- bfd_get_filename (h_sec->owner));
-
+ if (h_sec->owner != NULL
+ && INTERWORK_SET (h_sec->owner)
+ && ! INTERWORK_FLAG (h_sec->owner)
+ && ! globals->support_old_code)
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB(%s): warning: interworking not enabled; "
+ "first occurrence: %pB: thumb call to arm; "
+ "consider relinking with --support-old-code "
+ "enabled"),
+ h_sec->owner, name, input_bfd);
+
-- my_offset;
myh->root.u.def.value = my_offset;
- bfd_put_16 (output_bfd, t2a1_bx_pc_insn,
- s->contents + my_offset);
-
- bfd_put_16 (output_bfd, t2a2_noop_insn,
- s->contents + my_offset + 2);
-
- ret_offset =
- ((signed)h_val) -
- ((signed)(s->output_offset
- + my_offset
- + s->output_section->vma))
- - 12;
-
- t2a3_b_insn |= ((ret_offset >> 2) & 0x00FFFFFF);
-
- bfd_put_32 (output_bfd, t2a3_b_insn, s->contents + my_offset + 4);
+ if (globals->support_old_code)
+ {
+ bfd_put_16 (output_bfd, (bfd_vma) t2a1_push_insn,
+ s->contents + my_offset);
+
+ bfd_put_16 (output_bfd, (bfd_vma) t2a2_ldr_insn,
+ s->contents + my_offset + 2);
+
+ bfd_put_16 (output_bfd, (bfd_vma) t2a3_mov_insn,
+ s->contents + my_offset + 4);
+
+ bfd_put_16 (output_bfd, (bfd_vma) t2a4_bx_insn,
+ s->contents + my_offset + 6);
+
+ bfd_put_32 (output_bfd, (bfd_vma) t2a5_pop_insn,
+ s->contents + my_offset + 8);
+
+ bfd_put_32 (output_bfd, (bfd_vma) t2a6_bx_insn,
+ s->contents + my_offset + 12);
+
+ /* Store the address of the function in the last word of the stub. */
+ bfd_put_32 (output_bfd, h_val,
+ s->contents + my_offset + 16);
+
+ if (info->base_file
+ && !arm_emit_base_file_entry (info,
+ output_bfd, s,
+ my_offset + 16))
+ return FALSE;
+ }
+ else
+ {
+ bfd_put_16 (output_bfd, (bfd_vma) t2a1_bx_pc_insn,
+ s->contents + my_offset);
+
+ bfd_put_16 (output_bfd, (bfd_vma) t2a2_noop_insn,
+ s->contents + my_offset + 2);
+
+ ret_offset =
+ /* Address of destination of the stub. */
+ ((bfd_signed_vma) h_val)
+ - ((bfd_signed_vma)
+ /* Offset from the start of the current section to the start of the stubs. */
+ (s->output_offset
+ /* Offset of the start of this stub from the start of the stubs. */
+ + my_offset
+ /* Address of the start of the current section. */
+ + s->output_section->vma)
+ /* The branch instruction is 4 bytes into the stub. */
+ + 4
+ /* ARM branches work from the pc of the instruction + 8. */
+ + 8);
+
+ bfd_put_32 (output_bfd,
+ (bfd_vma) t2a3_b_insn | ((ret_offset >> 2) & 0x00FFFFFF),
+ s->contents + my_offset + 4);
+
+ }
}
- BFD_ASSERT (my_offset <= global_thumb_glue_size);
+ BFD_ASSERT (my_offset <= globals->thumb_glue_size);
- /* Now go back and fix up the original bl insn to point here. */
+ /* Now go back and fix up the original BL insn to point
+ to here. */
ret_offset =
s->output_offset
+ my_offset
- (input_section->output_offset
+ rel->r_vaddr)
-4;
-
- tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr - input_section->vma);
-
+
+ tmp = bfd_get_32 (input_bfd, contents + rel->r_vaddr
+ - input_section->vma);
+
bfd_put_32 (output_bfd,
- insert_thumb_branch (tmp, ret_offset),
+ (bfd_vma) insert_thumb_branch (tmp,
+ ret_offset),
contents + rel->r_vaddr - input_section->vma);
-
+
done = 1;
- }
- }
- }
-
- /* If the relocation type and destination symbol does not
- fall into one of the above categories, then we can just
- perform a direct link. */
+ }
+ }
+#endif
+ }
+
+ /* If the relocation type and destination symbol does not
+ fall into one of the above categories, then we can just
+ perform a direct link. */
if (done)
rstat = bfd_reloc_ok;
- else
-#endif /* THUMBEXTENSION */
+ else
if ( h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
+ sec->output_offset);
}
- else if (! info->relocateable)
- {
- if (! ((*info->callbacks->undefined_symbol)
- (info, h->root.root.string, input_bfd, input_section,
- rel->r_vaddr - input_section->vma)))
- return false;
- }
+ else if (! bfd_link_relocatable (info))
+ (*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd, input_section,
+ rel->r_vaddr - input_section->vma, TRUE);
}
- if (info->base_file)
- {
- /* Emit a reloc if the backend thinks it needs it. */
- if (sym && pe_data(output_bfd)->in_reloc_p(output_bfd, howto))
- {
- /* relocation to a symbol in a section which
- isn't absolute - we output the address here
- to a file */
- bfd_vma addr = rel->r_vaddr
- - input_section->vma
- + input_section->output_offset
- + input_section->output_section->vma;
- if (coff_data(output_bfd)->pe)
- addr -= pe_data(output_bfd)->pe_opthdr.ImageBase;
- /* FIXME: Shouldn't 4 be sizeof (addr)? */
- fwrite (&addr, 1,4, (FILE *) info->base_file);
- }
- }
-
-#if 1 /* THUMBEXTENSION */
+ /* Emit a reloc if the backend thinks it needs it. */
+ if (info->base_file
+ && sym
+ && pe_data(output_bfd)->in_reloc_p(output_bfd, howto)
+ && !arm_emit_base_file_entry (info, output_bfd, input_section,
+ rel->r_vaddr))
+ return FALSE;
+
if (done)
- ;
- /* Only perform this fix during the final link, not a relocatable link. nickc@cygnus.com */
- else if (! info->relocateable
+ rstat = bfd_reloc_ok;
+#ifndef ARM_WINCE
+ /* Only perform this fix during the final link, not a relocatable link. */
+ else if (! bfd_link_relocatable (info)
&& howto->type == ARM_THUMB23)
- {
- /* This is pretty much a copy of what the default
- _bfd_final_link_relocate and _bfd_relocate_contents
- routines do to perform a relocation, with special
- processing for the split addressing of the Thumb BL
- instruction. Again, it would probably be simpler adding a
- ThumbBRANCH23 specific macro expansion into the default
- code. */
-
- bfd_vma address = rel->r_vaddr - input_section->vma;
-
- if (address > input_section->_raw_size)
- rstat = bfd_reloc_outofrange;
- else
- {
- bfd_vma relocation = val + addend;
- int size = bfd_get_reloc_size (howto);
- boolean overflow = false;
- bfd_byte * location = contents + address;
- bfd_vma x = bfd_get_32 (input_bfd, location);
- bfd_vma src_mask = 0x007FFFFE;
- bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1;
- bfd_signed_vma reloc_signed_min = ~reloc_signed_max;
- bfd_vma check;
- bfd_signed_vma signed_check;
- bfd_vma add;
- bfd_signed_vma signed_add;
+ {
+ /* This is pretty much a copy of what the default
+ _bfd_final_link_relocate and _bfd_relocate_contents
+ routines do to perform a relocation, with special
+ processing for the split addressing of the Thumb BL
+ instruction. Again, it would probably be simpler adding a
+ ThumbBRANCH23 specific macro expansion into the default
+ code. */
+
+ bfd_vma address = rel->r_vaddr - input_section->vma;
+
+ if (address > high_address)
+ rstat = bfd_reloc_outofrange;
+ else
+ {
+ bfd_vma relocation = val + addend;
+ int size = bfd_get_reloc_size (howto);
+ bfd_boolean overflow = FALSE;
+ bfd_byte *location = contents + address;
+ bfd_vma x = bfd_get_32 (input_bfd, location);
+ bfd_vma src_mask = 0x007FFFFE;
+ bfd_signed_vma reloc_signed_max = (1 << (howto->bitsize - 1)) - 1;
+ bfd_signed_vma reloc_signed_min = ~reloc_signed_max;
+ bfd_vma check;
+ bfd_signed_vma signed_check;
+ bfd_vma add;
+ bfd_signed_vma signed_add;
BFD_ASSERT (size == 4);
-
- /* howto->pc_relative should be TRUE for type 14 BRANCH23 */
- relocation -= (input_section->output_section->vma
- + input_section->output_offset);
-
- /* howto->pcrel_offset should be TRUE for type 14 BRANCH23 */
- relocation -= address;
-
- /* No need to negate the relocation with BRANCH23. */
+
+ /* howto->pc_relative should be TRUE for type 14 BRANCH23. */
+ relocation -= (input_section->output_section->vma
+ + input_section->output_offset);
+
+ /* howto->pcrel_offset should be TRUE for type 14 BRANCH23. */
+ relocation -= address;
+
+ /* No need to negate the relocation with BRANCH23. */
/* howto->complain_on_overflow == complain_overflow_signed for BRANCH23. */
/* howto->rightshift == 1 */
+
/* Drop unwanted bits from the value we are relocating to. */
-
check = relocation >> howto->rightshift;
-
+
/* If this is a signed value, the rightshift just dropped
leading 1 bits (assuming twos complement). */
if ((bfd_signed_vma) relocation >= 0)
signed_check = (check
| ((bfd_vma) - 1
& ~((bfd_vma) - 1 >> howto->rightshift)));
-
+
/* Get the value from the object file. */
if (bfd_big_endian (input_bfd))
- {
- add = (((x) & 0x07ff0000) >> 4) | (((x) & 0x7ff) << 1);
- }
+ add = (((x) & 0x07ff0000) >> 4) | (((x) & 0x7ff) << 1);
else
- {
- add = ((((x) & 0x7ff) << 12) | (((x) & 0x07ff0000) >> 15));
- }
+ add = ((((x) & 0x7ff) << 12) | (((x) & 0x07ff0000) >> 15));
/* Get the value from the object file with an appropriate sign.
The expression involving howto->src_mask isolates the upper
can not get the upper bit, but that does not matter since
signed_add needs no adjustment to become negative in that
case. */
-
signed_add = add;
-
+
if ((add & (((~ src_mask) >> 1) & src_mask)) != 0)
signed_add -= (((~ src_mask) >> 1) & src_mask) << 1;
-
+
+ /* howto->bitpos == 0 */
/* Add the value from the object file, shifted so that it is a
straight number. */
- /* howto->bitpos == 0 */
-
signed_check += signed_add;
- relocation += signed_add;
+ relocation += signed_add;
BFD_ASSERT (howto->complain_on_overflow == complain_overflow_signed);
/* Assumes two's complement. */
if ( signed_check > reloc_signed_max
|| signed_check < reloc_signed_min)
- overflow = true;
-
- /* Put RELOCATION into the correct bits: */
-
+ overflow = TRUE;
+
+ /* Put the relocation into the correct bits.
+ For a BLX instruction, make sure that the relocation is rounded up
+ to a word boundary. This follows the semantics of the instruction
+ which specifies that bit 1 of the target address will come from bit
+ 1 of the base address. */
if (bfd_big_endian (input_bfd))
{
+ if ((x & 0x1800) == 0x0800 && (relocation & 0x02))
+ relocation += 2;
relocation = (((relocation & 0xffe) >> 1) | ((relocation << 4) & 0x07ff0000));
}
else
{
+ if ((x & 0x18000000) == 0x08000000 && (relocation & 0x02))
+ relocation += 2;
relocation = (((relocation & 0xffe) << 15) | ((relocation >> 12) & 0x7ff));
}
-
- /* Add RELOCATION to the correct bits of X: */
+
+ /* Add the relocation to the correct bits of X. */
x = ((x & ~howto->dst_mask) | relocation);
- /* Put the relocated value back in the object file: */
+ /* Put the relocated value back in the object file. */
bfd_put_32 (input_bfd, x, location);
rstat = overflow ? bfd_reloc_overflow : bfd_reloc_ok;
- }
- }
+ }
+ }
+#endif
else
-#endif /* THUMBEXTENSION */
- rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents,
- rel->r_vaddr - input_section->vma,
- val, addend);
-#if 1 /* THUMBEXTENSION */
- /* FIXME:
- Is this the best way to fix up thumb addresses? krk@cygnus.com
- Probably not, but it works, and if it works it don't need fixing! nickc@cygnus.com */
- /* Only perform this fix during the final link, not a relocatable link. nickc@cygnus.com */
- if (! info->relocateable
- && rel->r_type == ARM_32)
+ if (bfd_link_relocatable (info) && ! howto->partial_inplace)
+ rstat = bfd_reloc_ok;
+ else
+ rstat = _bfd_final_link_relocate (howto, input_bfd, input_section,
+ contents,
+ rel->r_vaddr - input_section->vma,
+ val, addend);
+ /* Only perform this fix during the final link, not a relocatable link. */
+ if (! bfd_link_relocatable (info)
+ && (rel->r_type == ARM_32 || rel->r_type == ARM_RVA32))
{
/* Determine if we need to set the bottom bit of a relocated address
because the address is the address of a Thumb code symbol. */
-
- int patchit = false;
-
+ int patchit = FALSE;
+
if (h != NULL
- && ( h->class == C_THUMBSTATFUNC
- || h->class == C_THUMBEXTFUNC))
+ && ( h->symbol_class == C_THUMBSTATFUNC
+ || h->symbol_class == C_THUMBEXTFUNC))
{
- patchit = true;
+ patchit = TRUE;
}
else if (sym != NULL
&& sym->n_scnum > N_UNDEF)
{
/* No hash entry - use the symbol instead. */
-
if ( sym->n_sclass == C_THUMBSTATFUNC
|| sym->n_sclass == C_THUMBEXTFUNC)
- patchit = true;
+ patchit = TRUE;
}
-
+
if (patchit)
{
bfd_byte * location = contents + rel->r_vaddr - input_section->vma;
- bfd_vma x = bfd_get_32 (input_bfd, location);
+ bfd_vma x = bfd_get_32 (input_bfd, location);
bfd_put_32 (input_bfd, x | 1, location);
}
}
-#endif /* THUMBEXTENSION */
-
+
switch (rstat)
{
default:
case bfd_reloc_ok:
break;
case bfd_reloc_outofrange:
- (*_bfd_error_handler)
- ("%s: bad reloc address 0x%lx in section `%s'",
- bfd_get_filename (input_bfd),
- (unsigned long) rel->r_vaddr,
- bfd_get_section_name (input_bfd, input_section));
- return false;
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: bad reloc address %#" PRIx64 " in section `%pA'"),
+ input_bfd, (uint64_t) rel->r_vaddr, input_section);
+ return FALSE;
case bfd_reloc_overflow:
{
const char *name;
if (symndx == -1)
name = "*ABS*";
else if (h != NULL)
- name = h->root.root.string;
+ name = NULL;
else
{
name = _bfd_coff_internal_syment_name (input_bfd, sym, buf);
if (name == NULL)
- return false;
+ return FALSE;
}
- if (! ((*info->callbacks->reloc_overflow)
- (info, name, howto->name, (bfd_vma) 0, input_bfd,
- input_section, rel->r_vaddr - input_section->vma)))
- return false;
+ (*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section,
+ rel->r_vaddr - input_section->vma);
}
}
}
- return true;
+ return TRUE;
}
-#ifndef COFF_WITH_PR
-boolean
-arm_allocate_interworking_sections (info)
- struct bfd_link_info *info;
+#ifndef COFF_IMAGE_WITH_PE
+
+bfd_boolean
+bfd_arm_allocate_interworking_sections (struct bfd_link_info * info)
{
- asection *s;
- bfd_byte *foo;
- static char test_char = '1';
+ asection * s;
+ bfd_byte * foo;
+ struct coff_arm_link_hash_table * globals;
+
+ globals = coff_arm_hash_table (info);
- if ( global_arm_glue_size != 0 )
+ BFD_ASSERT (globals != NULL);
+
+ if (globals->arm_glue_size != 0)
{
- BFD_ASSERT (bfd_of_glue_owner != NULL);
-
- s = bfd_get_section_by_name (bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
+ BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
+
+ s = bfd_get_section_by_name
+ (globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
-
- foo = (bfd_byte *) bfd_alloc(bfd_of_glue_owner, global_arm_glue_size);
- memset(foo, test_char, global_arm_glue_size);
-
- s->_raw_size = s->_cooked_size = global_arm_glue_size;
+
+ foo = bfd_alloc (globals->bfd_of_glue_owner, globals->arm_glue_size);
+
+ s->size = globals->arm_glue_size;
s->contents = foo;
}
- if (global_thumb_glue_size != 0)
+ if (globals->thumb_glue_size != 0)
{
- BFD_ASSERT (bfd_of_glue_owner != NULL);
-
- s = bfd_get_section_by_name (bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
+ BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
+
+ s = bfd_get_section_by_name
+ (globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
-
- foo = (bfd_byte *) bfd_alloc(bfd_of_glue_owner, global_thumb_glue_size);
- memset(foo, test_char, global_thumb_glue_size);
-
- s->_raw_size = s->_cooked_size = global_thumb_glue_size;
+
+ foo = bfd_alloc (globals->bfd_of_glue_owner, globals->thumb_glue_size);
+
+ s->size = globals->thumb_glue_size;
s->contents = foo;
}
- return true;
+ return TRUE;
}
static void
-record_arm_to_thumb_glue (info, h)
- struct bfd_link_info * info;
- struct coff_link_hash_entry * h;
+record_arm_to_thumb_glue (struct bfd_link_info * info,
+ struct coff_link_hash_entry * h)
{
- const char * name = h->root.root.string;
- register asection * s;
- char * tmp_name;
- struct coff_link_hash_entry * myh;
+ const char * name = h->root.root.string;
+ register asection * s;
+ char * tmp_name;
+ struct coff_link_hash_entry * myh;
+ struct bfd_link_hash_entry * bh;
+ struct coff_arm_link_hash_table * globals;
+ bfd_vma val;
+ size_t amt;
+
+ globals = coff_arm_hash_table (info);
-
- BFD_ASSERT (bfd_of_glue_owner != NULL);
+ BFD_ASSERT (globals != NULL);
+ BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
- s = bfd_get_section_by_name (bfd_of_glue_owner,
- ARM2THUMB_GLUE_SECTION_NAME);
+ s = bfd_get_section_by_name
+ (globals->bfd_of_glue_owner, ARM2THUMB_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
- tmp_name = ((char *)
- bfd_malloc (strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME)));
+ amt = strlen (name) + strlen (ARM2THUMB_GLUE_ENTRY_NAME) + 1;
+ tmp_name = bfd_malloc (amt);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, ARM2THUMB_GLUE_ENTRY_NAME, name);
-
- myh = coff_link_hash_lookup (coff_hash_table (info),
- tmp_name,
- false, false, true);
-
+
+ myh = coff_link_hash_lookup
+ (coff_hash_table (info), tmp_name, FALSE, FALSE, TRUE);
+
if (myh != NULL)
{
free (tmp_name);
- return; /* we've already seen this guy */
+ /* We've already seen this guy. */
+ return;
}
-
- /* The only trick here is using global_arm_glue_size as the value. Even
+ /* The only trick here is using globals->arm_glue_size as the value. Even
though the section isn't allocated yet, this is where we will be putting
it. */
-
- bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name,
- BSF_EXPORT | BSF_GLOBAL,
- s, global_arm_glue_size + 1,
- NULL, true, false,
- (struct bfd_link_hash_entry **) & myh);
-
- global_arm_glue_size += ARM2THUMB_GLUE_SIZE;
+ bh = NULL;
+ val = globals->arm_glue_size + 1;
+ bfd_coff_link_add_one_symbol (info, globals->bfd_of_glue_owner, tmp_name,
+ BSF_GLOBAL, s, val, NULL, TRUE, FALSE, &bh);
free (tmp_name);
+ globals->arm_glue_size += ARM2THUMB_GLUE_SIZE;
+
return;
}
+#ifndef ARM_WINCE
static void
-record_thumb_to_arm_glue (info, h)
- struct bfd_link_info * info;
- struct coff_link_hash_entry * h;
+record_thumb_to_arm_glue (struct bfd_link_info * info,
+ struct coff_link_hash_entry * h)
{
- const char * name = h->root.root.string;
- register asection * s;
- char * tmp_name;
- struct coff_link_hash_entry * myh;
+ const char * name = h->root.root.string;
+ asection * s;
+ char * tmp_name;
+ struct coff_link_hash_entry * myh;
+ struct bfd_link_hash_entry * bh;
+ struct coff_arm_link_hash_table * globals;
+ bfd_vma val;
+ size_t amt;
+
+ globals = coff_arm_hash_table (info);
-
- BFD_ASSERT (bfd_of_glue_owner != NULL);
+ BFD_ASSERT (globals != NULL);
+ BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
- s = bfd_get_section_by_name (bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
+ s = bfd_get_section_by_name
+ (globals->bfd_of_glue_owner, THUMB2ARM_GLUE_SECTION_NAME);
BFD_ASSERT (s != NULL);
- tmp_name = (char *) bfd_malloc (strlen (name) + strlen (THUMB2ARM_GLUE_ENTRY_NAME));
+ amt = strlen (name) + strlen (THUMB2ARM_GLUE_ENTRY_NAME) + 1;
+ tmp_name = bfd_malloc (amt);
BFD_ASSERT (tmp_name);
sprintf (tmp_name, THUMB2ARM_GLUE_ENTRY_NAME, name);
- myh = coff_link_hash_lookup (coff_hash_table (info),
- tmp_name,
- false, false, true);
-
+ myh = coff_link_hash_lookup
+ (coff_hash_table (info), tmp_name, FALSE, FALSE, TRUE);
+
if (myh != NULL)
{
free (tmp_name);
- return; /* we've already seen this guy */
+ /* We've already seen this guy. */
+ return;
}
- bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name,
- BSF_LOCAL, s, global_thumb_glue_size + 1,
- NULL, true, false,
- (struct bfd_link_hash_entry **) & myh);
-
- /* if we mark it 'thumb', the disassembler will do a better job */
- myh->class = C_THUMBEXTFUNC;
+ bh = NULL;
+ val = globals->thumb_glue_size + 1;
+ bfd_coff_link_add_one_symbol (info, globals->bfd_of_glue_owner, tmp_name,
+ BSF_GLOBAL, s, val, NULL, TRUE, FALSE, &bh);
+
+ /* If we mark it 'thumb', the disassembler will do a better job. */
+ myh = (struct coff_link_hash_entry *) bh;
+ myh->symbol_class = C_THUMBEXTFUNC;
free (tmp_name);
+ /* Allocate another symbol to mark where we switch to arm mode. */
+
#define CHANGE_TO_ARM "__%s_change_to_arm"
-
- tmp_name = ((char *)
- bfd_malloc (strlen (name) + strlen (CHANGE_TO_ARM)));
+#define BACK_FROM_ARM "__%s_back_from_arm"
- BFD_ASSERT (tmp_name);
+ amt = strlen (name) + strlen (CHANGE_TO_ARM) + 1;
+ tmp_name = bfd_malloc (amt);
- sprintf (tmp_name, CHANGE_TO_ARM, name);
+ BFD_ASSERT (tmp_name);
- myh = NULL;
+ sprintf (tmp_name, globals->support_old_code ? BACK_FROM_ARM : CHANGE_TO_ARM, name);
- /* now allocate another symbol to switch back to arm mode */
- bfd_coff_link_add_one_symbol (info, bfd_of_glue_owner, tmp_name,
- BSF_LOCAL, s, global_thumb_glue_size + 4,
- NULL, true, false,
- (struct bfd_link_hash_entry **) & myh);
+ bh = NULL;
+ val = globals->thumb_glue_size + (globals->support_old_code ? 8 : 4);
+ bfd_coff_link_add_one_symbol (info, globals->bfd_of_glue_owner, tmp_name,
+ BSF_LOCAL, s, val, NULL, TRUE, FALSE, &bh);
- free (tmp_name);
+ free (tmp_name);
- global_thumb_glue_size += THUMB2ARM_GLUE_SIZE;
+ globals->thumb_glue_size += THUMB2ARM_GLUE_SIZE;
return;
}
+#endif /* not ARM_WINCE */
-boolean
-arm_process_before_allocation (abfd, info)
- bfd * abfd;
- struct bfd_link_info * info;
+/* Select a BFD to be used to hold the sections used by the glue code.
+ This function is called from the linker scripts in ld/emultempl/
+ {armcoff/pe}.em */
+
+bfd_boolean
+bfd_arm_get_bfd_for_interworking (bfd * abfd,
+ struct bfd_link_info * info)
{
- asection * sec;
+ struct coff_arm_link_hash_table * globals;
+ flagword flags;
+ asection * sec;
/* If we are only performing a partial link do not bother
- to construct any glue. */
- if (info->relocateable)
- return true;
-
- /* Here we have a bfd that is to be included on the link. We have a hook
- to do reloc rummaging, before section sizes are nailed down. */
+ getting a bfd to hold the glue. */
+ if (bfd_link_relocatable (info))
+ return TRUE;
- _bfd_coff_get_external_symbols (abfd);
+ globals = coff_arm_hash_table (info);
+
+ BFD_ASSERT (globals != NULL);
+
+ if (globals->bfd_of_glue_owner != NULL)
+ return TRUE;
+
+ sec = bfd_get_section_by_name (abfd, ARM2THUMB_GLUE_SECTION_NAME);
+
+ if (sec == NULL)
+ {
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_CODE | SEC_READONLY);
+ sec = bfd_make_section_with_flags (abfd, ARM2THUMB_GLUE_SECTION_NAME,
+ flags);
+ if (sec == NULL
+ || !bfd_set_section_alignment (sec, 2))
+ return FALSE;
+ }
+
+ sec = bfd_get_section_by_name (abfd, THUMB2ARM_GLUE_SECTION_NAME);
+
+ if (sec == NULL)
+ {
+ flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
+ | SEC_CODE | SEC_READONLY);
+ sec = bfd_make_section_with_flags (abfd, THUMB2ARM_GLUE_SECTION_NAME,
+ flags);
+
+ if (sec == NULL
+ || !bfd_set_section_alignment (sec, 2))
+ return FALSE;
+ }
+
+ /* Save the bfd for later use. */
+ globals->bfd_of_glue_owner = abfd;
+
+ return TRUE;
+}
+
+bfd_boolean
+bfd_arm_process_before_allocation (bfd * abfd,
+ struct bfd_link_info * info,
+ int support_old_code)
+{
+ asection * sec;
+ struct coff_arm_link_hash_table * globals;
+
+ /* If we are only performing a partial link do not bother
+ to construct any glue. */
+ if (bfd_link_relocatable (info))
+ return TRUE;
+
+ /* Here we have a bfd that is to be included on the link. We have a hook
+ to do reloc rummaging, before section sizes are nailed down. */
+ _bfd_coff_get_external_symbols (abfd);
+
+ globals = coff_arm_hash_table (info);
+
+ BFD_ASSERT (globals != NULL);
+ BFD_ASSERT (globals->bfd_of_glue_owner != NULL);
+
+ globals->support_old_code = support_old_code;
/* Rummage around all the relocs and map the glue vectors. */
sec = abfd->sections;
if (sec == NULL)
- return true;
+ return TRUE;
for (; sec != NULL; sec = sec->next)
{
struct internal_reloc * i;
struct internal_reloc * rel;
-
- if (sec->reloc_count == 0)
+
+ if (sec->reloc_count == 0)
continue;
/* Load the relocs. */
- /* FIXME: there may be a storage leak here. */
-
+ /* FIXME: there may be a storage leak here. */
i = _bfd_coff_read_internal_relocs (abfd, sec, 1, 0, 0, 0);
-
+
BFD_ASSERT (i != 0);
- for (rel = i; rel < i + sec->reloc_count; ++rel)
+ for (rel = i; rel < i + sec->reloc_count; ++rel)
{
- unsigned short r_type = rel->r_type;
- long symndx;
- struct coff_link_hash_entry * h;
+ unsigned short r_type = rel->r_type;
+ long symndx;
+ struct coff_link_hash_entry * h;
symndx = rel->r_symndx;
if (symndx == -1)
continue;
+ /* If the index is outside of the range of our table, something has gone wrong. */
+ if (symndx >= obj_conv_table_size (abfd))
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: illegal symbol index in reloc: %ld"),
+ abfd, symndx);
+ continue;
+ }
+
h = obj_coff_sym_hashes (abfd)[symndx];
/* If the relocation is against a static symbol it must be within
- the current section and so canot be a cross ARM/Thumb relocation. */
+ the current section and so cannot be a cross ARM/Thumb relocation. */
if (h == NULL)
continue;
/* This one is a call from arm code. We need to look up
the target of the call. If it is a thumb target, we
insert glue. */
-
- if (h->class == C_THUMBEXTFUNC)
- {
- record_arm_to_thumb_glue (info, h);
- }
+
+ if (h->symbol_class == C_THUMBEXTFUNC)
+ record_arm_to_thumb_glue (info, h);
break;
-
+
+#ifndef ARM_WINCE
case ARM_THUMB23:
/* This one is a call from thumb code. We used to look
for ARM_THUMB9 and ARM_THUMB12 as well. We need to look
up the target of the call. If it is an arm target, we
- insert glue. */
-
- switch (h->class)
+ insert glue. If the symbol does not exist it will be
+ given a class of C_EXT and so we will generate a stub
+ for it. This is not really a problem, since the link
+ is doomed anyway. */
+
+ switch (h->symbol_class)
{
case C_EXT:
case C_STAT:
;
}
break;
-
+#endif
+
default:
break;
}
}
}
- return true;
+ return TRUE;
}
-#endif /* not COFF_WITH_PE */
-
-#define coff_relocate_section coff_arm_relocate_section
-/* When doing a relocateable link, we want to convert ARM26 relocs
- into ARM26D relocs. */
+#endif /* ! defined (COFF_IMAGE_WITH_PE) */
-static boolean
-coff_arm_adjust_symndx (obfd, info, ibfd, sec, irel, adjustedp)
- bfd *obfd;
- struct bfd_link_info *info;
- bfd *ibfd;
- asection *sec;
- struct internal_reloc *irel;
- boolean *adjustedp;
+#define coff_bfd_reloc_type_lookup coff_arm_reloc_type_lookup
+#define coff_bfd_reloc_name_lookup coff_arm_reloc_name_lookup
+#define coff_relocate_section coff_arm_relocate_section
+#define coff_bfd_is_local_label_name coff_arm_is_local_label_name
+#define coff_adjust_symndx coff_arm_adjust_symndx
+#define coff_link_output_has_begun coff_arm_link_output_has_begun
+#define coff_final_link_postscript coff_arm_final_link_postscript
+#define coff_bfd_merge_private_bfd_data coff_arm_merge_private_bfd_data
+#define coff_bfd_print_private_bfd_data coff_arm_print_private_bfd_data
+#define coff_bfd_set_private_flags _bfd_coff_arm_set_private_flags
+#define coff_bfd_copy_private_bfd_data coff_arm_copy_private_bfd_data
+#define coff_bfd_link_hash_table_create coff_arm_link_hash_table_create
+
+/* When doing a relocatable link, we want to convert ARM_26 relocs
+ into ARM_26D relocs. */
+
+static bfd_boolean
+coff_arm_adjust_symndx (bfd *obfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED,
+ bfd *ibfd,
+ asection *sec,
+ struct internal_reloc *irel,
+ bfd_boolean *adjustedp)
{
- if (irel->r_type == 3)
+ if (irel->r_type == ARM_26)
{
struct coff_link_hash_entry *h;
&& (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
&& h->root.u.def.section->output_section == sec->output_section)
- irel->r_type = 7;
+ irel->r_type = ARM_26D;
}
- *adjustedp = false;
- return true;
+ *adjustedp = FALSE;
+ return TRUE;
}
-
/* Called when merging the private data areas of two BFDs.
This is important as it allows us to detect if we are
attempting to merge binaries compiled for different ARM
- targets, eg different CPUs or differents APCS's. */
+ targets, eg different CPUs or different APCS's. */
-static boolean
-coff_arm_bfd_merge_private_bfd_data (ibfd, obfd)
- bfd * ibfd;
- bfd * obfd;
+static bfd_boolean
+coff_arm_merge_private_bfd_data (bfd * ibfd, struct bfd_link_info *info)
{
+ bfd *obfd = info->output_bfd;
BFD_ASSERT (ibfd != NULL && obfd != NULL);
if (ibfd == obfd)
- return true;
+ return TRUE;
- /* If the two formats are different we cannot merge anything. */
- if (ibfd->xvec != obfd->xvec)
- {
- _bfd_error_handler
- ("ERROR: %s is format '%s' whereas %s is format '%s'",
- bfd_get_filename (ibfd), bfd_get_target(ibfd),
- bfd_get_filename (obfd), bfd_get_target(obfd)
- );
-
- bfd_set_error (bfd_error_wrong_format);
- return false;
- }
+ /* If the two formats are different we cannot merge anything.
+ This is not an error, since it is permissable to change the
+ input and output formats. */
+ if ( ibfd->xvec->flavour != bfd_target_coff_flavour
+ || obfd->xvec->flavour != bfd_target_coff_flavour)
+ return TRUE;
- /* Verify that the APCS is the same for the two BFDs */
+ /* Determine what should happen if the input ARM architecture
+ does not match the output ARM architecture. */
+ if (! bfd_arm_merge_machines (ibfd, obfd))
+ return FALSE;
+
+ /* Verify that the APCS is the same for the two BFDs. */
if (APCS_SET (ibfd))
{
if (APCS_SET (obfd))
if (APCS_26_FLAG (obfd) != APCS_26_FLAG (ibfd))
{
_bfd_error_handler
- ("%s: ERROR: compiled for APCS-%d whereas target %s uses APCS-%d",
- bfd_get_filename (ibfd), APCS_26_FLAG (ibfd) ? 26 : 32,
- bfd_get_filename (obfd), APCS_26_FLAG (obfd) ? 26 : 32
+ /* xgettext: c-format */
+ (_("error: %pB is compiled for APCS-%d, "
+ "whereas %pB is compiled for APCS-%d"),
+ ibfd, APCS_26_FLAG (ibfd) ? 26 : 32,
+ obfd, APCS_26_FLAG (obfd) ? 26 : 32
);
bfd_set_error (bfd_error_wrong_format);
- return false;
+ return FALSE;
}
-
+
if (APCS_FLOAT_FLAG (obfd) != APCS_FLOAT_FLAG (ibfd))
{
- _bfd_error_handler
- ("%s: ERROR: passes floats in %s registers whereas target %s uses %s registers",
- bfd_get_filename (ibfd), APCS_FLOAT_FLAG (ibfd) ? "float" : "integer",
- bfd_get_filename (obfd), APCS_FLOAT_FLAG (obfd) ? "float" : "integer"
- );
+ if (APCS_FLOAT_FLAG (ibfd))
+ /* xgettext: c-format */
+ _bfd_error_handler
+ (_("error: %pB passes floats in float registers, "
+ "whereas %pB passes them in integer registers"),
+ ibfd, obfd);
+ else
+ /* xgettext: c-format */
+ _bfd_error_handler
+ (_("error: %pB passes floats in integer registers, "
+ "whereas %pB passes them in float registers"),
+ ibfd, obfd);
bfd_set_error (bfd_error_wrong_format);
- return false;
+ return FALSE;
}
-
+
if (PIC_FLAG (obfd) != PIC_FLAG (ibfd))
{
- _bfd_error_handler
- ("%s: ERROR: compiled as %s code, whereas target %s is %s",
- bfd_get_filename (ibfd), PIC_FLAG (ibfd) ? "position independent" : "absoluste position",
- bfd_get_filename (obfd), PIC_FLAG (obfd) ? "position independent" : "absoluste position"
- );
+ if (PIC_FLAG (ibfd))
+ /* xgettext: c-format */
+ _bfd_error_handler
+ (_("error: %pB is compiled as position independent code, "
+ "whereas target %pB is absolute position"),
+ ibfd, obfd);
+ else
+ /* xgettext: c-format */
+ _bfd_error_handler
+ (_("error: %pB is compiled as absolute position code, "
+ "whereas target %pB is position independent"),
+ ibfd, obfd);
bfd_set_error (bfd_error_wrong_format);
- return false;
+ return FALSE;
}
}
else
{
SET_APCS_FLAGS (obfd, APCS_26_FLAG (ibfd) | APCS_FLOAT_FLAG (ibfd) | PIC_FLAG (ibfd));
-
+
/* Set up the arch and fields as well as these are probably wrong. */
bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
}
}
-
+
/* Check the interworking support. */
if (INTERWORK_SET (ibfd))
{
/* If the src and dest differ in their interworking issue a warning. */
if (INTERWORK_FLAG (obfd) != INTERWORK_FLAG (ibfd))
{
- _bfd_error_handler
- ("Warning: input file %s %s interworking, whereas %s does%s",
- bfd_get_filename (ibfd),
- INTERWORK_FLAG (ibfd) ? "supports" : "does not support",
- bfd_get_filename (obfd),
- INTERWORK_FLAG (obfd) ? "." : " not."
- );
+ if (INTERWORK_FLAG (ibfd))
+ /* xgettext: c-format */
+ _bfd_error_handler (_("warning: %pB supports interworking, "
+ "whereas %pB does not"),
+ ibfd, obfd);
+ else
+ /* xgettext: c-format */
+ _bfd_error_handler
+ (_("warning: %pB does not support interworking, "
+ "whereas %pB does"),
+ ibfd, obfd);
}
}
else
}
}
- return true;
+ return TRUE;
}
+/* Display the flags field. */
-/* Display the flags field */
-
-static boolean
-coff_arm_bfd_print_private_bfd_data (abfd, ptr)
- bfd * abfd;
- PTR ptr;
+static bfd_boolean
+coff_arm_print_private_bfd_data (bfd * abfd, void * ptr)
{
FILE * file = (FILE *) ptr;
-
- BFD_ASSERT (abfd != NULL && ptr != NULL)
-
- fprintf (file, "private flags = %x", coff_data( abfd )->flags);
-
+
+ BFD_ASSERT (abfd != NULL && ptr != NULL);
+
+ fprintf (file, _("private flags = %x:"), coff_data (abfd)->flags);
+
if (APCS_SET (abfd))
- fprintf (file, ": [APCS-%d] [floats passed in %s registers] [%s]",
- APCS_26_FLAG (abfd) ? 26 : 32,
- APCS_FLOAT_FLAG (abfd) ? "float" : "integer",
- PIC_FLAG (abfd) ? "position independent" : "absolute position"
- );
-
- if (INTERWORK_SET (abfd))
- fprintf (file, ": [interworking %ssupported]",
- INTERWORK_FLAG (abfd) ? "" : "not " );
-
+ {
+ /* xgettext: APCS is ARM Procedure Call Standard, it should not be translated. */
+ fprintf (file, " [APCS-%d]", APCS_26_FLAG (abfd) ? 26 : 32);
+
+ if (APCS_FLOAT_FLAG (abfd))
+ fprintf (file, _(" [floats passed in float registers]"));
+ else
+ fprintf (file, _(" [floats passed in integer registers]"));
+
+ if (PIC_FLAG (abfd))
+ fprintf (file, _(" [position independent]"));
+ else
+ fprintf (file, _(" [absolute position]"));
+ }
+
+ if (! INTERWORK_SET (abfd))
+ fprintf (file, _(" [interworking flag not initialised]"));
+ else if (INTERWORK_FLAG (abfd))
+ fprintf (file, _(" [interworking supported]"));
+ else
+ fprintf (file, _(" [interworking not supported]"));
+
fputc ('\n', file);
-
- return true;
-}
+ return TRUE;
+}
/* Copies the given flags into the coff_tdata.flags field.
Typically these flags come from the f_flags[] field of
the COFF filehdr structure, which contains important,
- target specific information. */
+ target specific information.
+ Note: Although this function is static, it is explicitly
+ called from both coffcode.h and peicode.h. */
-static boolean
-coff_arm_bfd_set_private_flags (abfd, flags)
- bfd * abfd;
- flagword flags;
+static bfd_boolean
+_bfd_coff_arm_set_private_flags (bfd * abfd, flagword flags)
{
- int flag;
+ flagword flag;
BFD_ASSERT (abfd != NULL);
flag = (flags & F_APCS26) ? F_APCS_26 : 0;
-
- /* Make sure that the APCS field has not been initialised to the opposite value. */
+
+ /* Make sure that the APCS field has not been initialised to the opposite
+ value. */
if (APCS_SET (abfd)
&& ( (APCS_26_FLAG (abfd) != flag)
|| (APCS_FLOAT_FLAG (abfd) != (flags & F_APCS_FLOAT))
- || (PIC_FLAG (abfd) != (flags & F_PIC))
+ || (PIC_FLAG (abfd) != (flags & F_PIC))
))
- return false;
+ return FALSE;
flag |= (flags & (F_APCS_FLOAT | F_PIC));
-
+
SET_APCS_FLAGS (abfd, flag);
flag = (flags & F_INTERWORK);
-
- /* If either the flags or the BFD do support interworking then do not set the interworking flag. */
+
+ /* If the BFD has already had its interworking flag set, but it
+ is different from the value that we have been asked to set,
+ then assume that that merged code will not support interworking
+ and set the flag accordingly. */
if (INTERWORK_SET (abfd) && (INTERWORK_FLAG (abfd) != flag))
- flag = 0;
+ {
+ if (flag)
+ _bfd_error_handler (_("warning: not setting interworking flag of %pB since it has already been specified as non-interworking"),
+ abfd);
+ else
+ _bfd_error_handler (_("warning: clearing the interworking flag of %pB due to outside request"),
+ abfd);
+ flag = 0;
+ }
SET_INTERWORK_FLAG (abfd, flag);
- return true;
+ return TRUE;
}
-
/* Copy the important parts of the target specific data
from one instance of a BFD to another. */
-static boolean
-coff_arm_bfd_copy_private_bfd_data (src, dest)
- bfd * src;
- bfd * dest;
+static bfd_boolean
+coff_arm_copy_private_bfd_data (bfd * src, bfd * dest)
{
BFD_ASSERT (src != NULL && dest != NULL);
if (src == dest)
- return true;
+ return TRUE;
- /* If the destination is not in the same format as the source, do not do the copy. */
+ /* If the destination is not in the same format as the source, do not do
+ the copy. */
if (src->xvec != dest->xvec)
- return true;
+ return TRUE;
- /* copy the flags field */
+ /* Copy the flags field. */
if (APCS_SET (src))
{
if (APCS_SET (dest))
{
/* If the src and dest have different APCS flag bits set, fail. */
if (APCS_26_FLAG (dest) != APCS_26_FLAG (src))
- return false;
-
+ return FALSE;
+
if (APCS_FLOAT_FLAG (dest) != APCS_FLOAT_FLAG (src))
- return false;
-
+ return FALSE;
+
if (PIC_FLAG (dest) != PIC_FLAG (src))
- return false;
+ return FALSE;
}
else
- SET_APCS_FLAGS (dest, APCS_26_FLAG (src) | APCS_FLOAT_FLAG (src) | PIC_FLAG (src));
+ SET_APCS_FLAGS (dest, APCS_26_FLAG (src) | APCS_FLOAT_FLAG (src)
+ | PIC_FLAG (src));
}
if (INTERWORK_SET (src))
{
if (INTERWORK_SET (dest))
{
- /* If the src and dest have different interworking flags then turn off the interworking bit. */
+ /* If the src and dest have different interworking flags then turn
+ off the interworking bit. */
if (INTERWORK_FLAG (dest) != INTERWORK_FLAG (src))
- SET_INTERWORK_FLAG (dest, 0);
+ {
+ if (INTERWORK_FLAG (dest))
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler
+ (_("warning: clearing the interworking flag of %pB "
+ "because non-interworking code in %pB has been "
+ "linked with it"),
+ dest, src);
+ }
+
+ SET_INTERWORK_FLAG (dest, 0);
+ }
}
else
{
}
}
- return true;
+ return TRUE;
}
/* Note: the definitions here of LOCAL_LABEL_PREFIX and USER_LABEL_PREIFX
- *must* match the definitions on gcc/config/arm/semi.h. */
-#define LOCAL_LABEL_PREFIX "."
-#define USER_LABEL_PREFIX "_"
-
-static boolean
-coff_arm_is_local_label_name (abfd, name)
- bfd * abfd;
- const char * name;
-{
-#ifdef LOCAL_LABEL_PREFIX
- /* If there is a prefix for local labels then look for this.
- If the prefix exists, but it is empty, then ignore the test. */
-
- if (LOCAL_LABEL_PREFIX[0] != 0)
- {
- if (strncmp (name, LOCAL_LABEL_PREFIX, strlen (LOCAL_LABEL_PREFIX)) == 0)
- return true;
- }
+ *must* match the definitions in gcc/config/arm/{coff|semi|aout}.h. */
+#ifndef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX ""
#endif
-#ifdef USER_LABEL_PREFIX
- if (USER_LABEL_PREFIX[0] != 0)
- {
- if (strncmp (name, USER_LABEL_PREFIX, strlen (USER_LABEL_PREFIX)) == 0)
- return false;
- }
+#ifndef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX "_"
#endif
-
- /* devo/gcc/config/dbxcoff.h defines ASM_OUTPUT_SOURCE_LINE to generate local line numbers as .LM<number>, so treat these as local. */
-
- switch (name[0])
- {
- case 'L': return true;
- case '.': return (name[1] == 'L' && name[2] == 'M') ? true : false;
- default: return false; /* Cannot make our minds up - default to false so that it will not be stripped by accident. */
- }
-}
-
-#define coff_bfd_is_local_label_name coff_arm_is_local_label_name
-#define coff_adjust_symndx coff_arm_adjust_symndx
-#define coff_bfd_final_link coff_arm_bfd_final_link
-#define coff_bfd_merge_private_bfd_data coff_arm_bfd_merge_private_bfd_data
-#define coff_bfd_print_private_bfd_data coff_arm_bfd_print_private_bfd_data
-#define coff_bfd_set_private_flags coff_arm_bfd_set_private_flags
-#define coff_bfd_copy_private_bfd_data coff_arm_bfd_copy_private_bfd_data
-
-#include "coffcode.h"
-
-static boolean
-arm_do_last (abfd)
- bfd * abfd;
-{
- if (abfd == bfd_of_glue_owner)
- return true;
- else
- return false;
-}
-
-static bfd *
-arm_get_last()
-{
- return bfd_of_glue_owner;
-}
-
-/* This piece of machinery exists only to guarantee that the bfd that holds
- the glue section is written last.
-
- This does depend on bfd_make_section attaching a new section to the
- end of the section list for the bfd.
- This is otherwise intended to be functionally the same as
- cofflink.c:_bfd_coff_final_link(). It is specifically different only
- where the ARM_HACKS macro modifies the code. It is left in as a
- precise form of comment. krk@cygnus.com */
+/* Like _bfd_coff_is_local_label_name, but
+ a) test against USER_LABEL_PREFIX, to avoid stripping labels known to be
+ non-local.
+ b) Allow other prefixes than ".", e.g. an empty prefix would cause all
+ labels of the form Lxxx to be stripped. */
-#define ARM_HACKS
-
-/* Do the final link step. */
-
-static boolean
-coff_arm_bfd_final_link (abfd, info)
- bfd *abfd;
- struct bfd_link_info *info;
+static bfd_boolean
+coff_arm_is_local_label_name (bfd * abfd ATTRIBUTE_UNUSED,
+ const char * name)
{
- bfd_size_type symesz;
- struct coff_final_link_info finfo;
- boolean debug_merge_allocated;
- asection *o;
- struct bfd_link_order *p;
- size_t max_sym_count;
- size_t max_lineno_count;
- size_t max_reloc_count;
- size_t max_output_reloc_count;
- size_t max_contents_size;
- file_ptr rel_filepos;
- unsigned int relsz;
- file_ptr line_filepos;
- unsigned int linesz;
- bfd *sub;
- bfd_byte *external_relocs = NULL;
- char strbuf[STRING_SIZE_SIZE];
-
- symesz = bfd_coff_symesz (abfd);
-
- finfo.info = info;
- finfo.output_bfd = abfd;
- finfo.strtab = NULL;
- finfo.section_info = NULL;
- finfo.last_file_index = -1;
- finfo.last_bf_index = -1;
- finfo.internal_syms = NULL;
- finfo.sec_ptrs = NULL;
- finfo.sym_indices = NULL;
- finfo.outsyms = NULL;
- finfo.linenos = NULL;
- finfo.contents = NULL;
- finfo.external_relocs = NULL;
- finfo.internal_relocs = NULL;
- debug_merge_allocated = false;
-
- coff_data (abfd)->link_info = info;
-
- finfo.strtab = _bfd_stringtab_init ();
- if (finfo.strtab == NULL)
- goto error_return;
-
- if (! coff_debug_merge_hash_table_init (&finfo.debug_merge))
- goto error_return;
- debug_merge_allocated = true;
-
- /* Compute the file positions for all the sections. */
- if (! abfd->output_has_begun)
- bfd_coff_compute_section_file_positions (abfd);
-
- /* Count the line numbers and relocation entries required for the
- output file. Set the file positions for the relocs. */
- rel_filepos = obj_relocbase (abfd);
- relsz = bfd_coff_relsz (abfd);
- max_contents_size = 0;
- max_lineno_count = 0;
- max_reloc_count = 0;
-
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- o->reloc_count = 0;
- o->lineno_count = 0;
- for (p = o->link_order_head; p != NULL; p = p->next)
- {
-
- if (p->type == bfd_indirect_link_order)
- {
- asection *sec;
-
- sec = p->u.indirect.section;
-
- /* 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. */
- sec->linker_mark = true;
-
- if (info->strip == strip_none
- || info->strip == strip_some)
- o->lineno_count += sec->lineno_count;
-
- if (info->relocateable)
- o->reloc_count += sec->reloc_count;
-
- if (sec->_raw_size > max_contents_size)
- max_contents_size = sec->_raw_size;
- if (sec->lineno_count > max_lineno_count)
- max_lineno_count = sec->lineno_count;
- if (sec->reloc_count > max_reloc_count)
- max_reloc_count = sec->reloc_count;
- }
- else if (info->relocateable
- && (p->type == bfd_section_reloc_link_order
- || p->type == bfd_symbol_reloc_link_order))
- ++o->reloc_count;
- }
- if (o->reloc_count == 0)
- o->rel_filepos = 0;
- else
- {
- o->flags |= SEC_RELOC;
- o->rel_filepos = rel_filepos;
- rel_filepos += o->reloc_count * relsz;
- }
- }
-
- /* If doing a relocateable link, allocate space for the pointers we
- need to keep. */
- if (info->relocateable)
- {
- unsigned int i;
-
- /* We use section_count + 1, rather than section_count, because
- the target_index fields are 1 based. */
- finfo.section_info =
- ((struct coff_link_section_info *)
- bfd_malloc ((abfd->section_count + 1)
- * sizeof (struct coff_link_section_info)));
- if (finfo.section_info == NULL)
- goto error_return;
- for (i = 0; i <= abfd->section_count; i++)
- {
- finfo.section_info[i].relocs = NULL;
- finfo.section_info[i].rel_hashes = NULL;
- }
- }
-
- /* We now know the size of the relocs, so we can determine the file
- positions of the line numbers. */
- line_filepos = rel_filepos;
- linesz = bfd_coff_linesz (abfd);
- max_output_reloc_count = 0;
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- if (o->lineno_count == 0)
- o->line_filepos = 0;
- else
- {
- o->line_filepos = line_filepos;
- line_filepos += o->lineno_count * linesz;
- }
-
- if (o->reloc_count != 0)
- {
- /* We don't know the indices of global symbols until we have
- written out all the local symbols. For each section in
- the output file, we keep an array of pointers to hash
- table entries. Each entry in the array corresponds to a
- reloc. When we find a reloc against a global symbol, we
- set the corresponding entry in this array so that we can
- fix up the symbol index after we have written out all the
- local symbols.
-
- Because of this problem, we also keep the relocs in
- memory until the end of the link. This wastes memory,
- but only when doing a relocateable link, which is not the
- common case. */
- BFD_ASSERT (info->relocateable);
- finfo.section_info[o->target_index].relocs =
- ((struct internal_reloc *)
- bfd_malloc (o->reloc_count * sizeof (struct internal_reloc)));
- finfo.section_info[o->target_index].rel_hashes =
- ((struct coff_link_hash_entry **)
- bfd_malloc (o->reloc_count
- * sizeof (struct coff_link_hash_entry *)));
- if (finfo.section_info[o->target_index].relocs == NULL
- || finfo.section_info[o->target_index].rel_hashes == NULL)
- goto error_return;
-
- if (o->reloc_count > max_output_reloc_count)
- max_output_reloc_count = o->reloc_count;
- }
-
- /* Reset the reloc and lineno counts, so that we can use them to
- count the number of entries we have output so far. */
- o->reloc_count = 0;
- o->lineno_count = 0;
- }
-
- obj_sym_filepos (abfd) = line_filepos;
-
- /* Figure out the largest number of symbols in an input BFD. Take
- the opportunity to clear the output_has_begun fields of all the
- input BFD's. */
- max_sym_count = 0;
- for (sub = info->input_bfds; sub != NULL; sub = sub->link_next)
+#ifdef USER_LABEL_PREFIX
+ if (USER_LABEL_PREFIX[0] != 0)
{
- size_t sz;
+ size_t len = strlen (USER_LABEL_PREFIX);
- sub->output_has_begun = false;
- sz = obj_raw_syment_count (sub);
- if (sz > max_sym_count)
- max_sym_count = sz;
- }
-
- /* Allocate some buffers used while linking. */
- finfo.internal_syms = ((struct internal_syment *)
- bfd_malloc (max_sym_count
- * sizeof (struct internal_syment)));
- finfo.sec_ptrs = (asection **) bfd_malloc (max_sym_count
- * sizeof (asection *));
- finfo.sym_indices = (long *) bfd_malloc (max_sym_count * sizeof (long));
- finfo.outsyms = ((bfd_byte *)
- bfd_malloc ((size_t) ((max_sym_count + 1) * symesz)));
- finfo.linenos = (bfd_byte *) bfd_malloc (max_lineno_count
- * bfd_coff_linesz (abfd));
- finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size);
- finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz);
- if (! info->relocateable)
- finfo.internal_relocs = ((struct internal_reloc *)
- bfd_malloc (max_reloc_count
- * sizeof (struct internal_reloc)));
- if ((finfo.internal_syms == NULL && max_sym_count > 0)
- || (finfo.sec_ptrs == NULL && max_sym_count > 0)
- || (finfo.sym_indices == NULL && max_sym_count > 0)
- || finfo.outsyms == NULL
- || (finfo.linenos == NULL && max_lineno_count > 0)
- || (finfo.contents == NULL && max_contents_size > 0)
- || (finfo.external_relocs == NULL && max_reloc_count > 0)
- || (! info->relocateable
- && finfo.internal_relocs == NULL
- && max_reloc_count > 0))
- goto error_return;
-
- /* We now know the position of everything in the file, except that
- we don't know the size of the symbol table and therefore we don't
- know where the string table starts. We just build the string
- table in memory as we go along. We process all the relocations
- for a single input file at once. */
- obj_raw_syment_count (abfd) = 0;
-
- if (coff_backend_info (abfd)->_bfd_coff_start_final_link)
- {
- if (! bfd_coff_start_final_link (abfd, info))
- goto error_return;
+ if (strncmp (name, USER_LABEL_PREFIX, len) == 0)
+ return FALSE;
}
-
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- for (p = o->link_order_head; p != NULL; p = p->next)
- {
- if (p->type == bfd_indirect_link_order
- && (bfd_get_flavour (p->u.indirect.section->owner)
- == bfd_target_coff_flavour))
- {
- sub = p->u.indirect.section->owner;
-#ifdef ARM_HACKS
- if (! sub->output_has_begun && !arm_do_last(sub))
-#else
- if (! sub->output_has_begun)
#endif
- {
- if (! _bfd_coff_link_input_bfd (&finfo, sub))
- goto error_return;
- sub->output_has_begun = true;
- }
- }
- else if (p->type == bfd_section_reloc_link_order
- || p->type == bfd_symbol_reloc_link_order)
- {
- if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p))
- goto error_return;
- }
- else
- {
- if (! _bfd_default_link_order (abfd, info, o, p))
- goto error_return;
- }
- }
- }
-
-#ifdef ARM_HACKS
- {
- extern bfd* arm_get_last();
- bfd* last_one = arm_get_last();
- if (last_one)
- {
- if (! _bfd_coff_link_input_bfd (&finfo, last_one))
- goto error_return;
- last_one->output_has_begun = true;
- }
- }
-#endif
-
- /* Free up the buffers used by _bfd_coff_link_input_bfd. */
- coff_debug_merge_hash_table_free (&finfo.debug_merge);
- debug_merge_allocated = false;
-
- if (finfo.internal_syms != NULL)
- {
- free (finfo.internal_syms);
- finfo.internal_syms = NULL;
- }
- if (finfo.sec_ptrs != NULL)
- {
- free (finfo.sec_ptrs);
- finfo.sec_ptrs = NULL;
- }
- if (finfo.sym_indices != NULL)
- {
- free (finfo.sym_indices);
- finfo.sym_indices = NULL;
- }
- if (finfo.linenos != NULL)
- {
- free (finfo.linenos);
- finfo.linenos = NULL;
- }
- if (finfo.contents != NULL)
- {
- free (finfo.contents);
- finfo.contents = NULL;
- }
- if (finfo.external_relocs != NULL)
- {
- free (finfo.external_relocs);
- finfo.external_relocs = NULL;
- }
- if (finfo.internal_relocs != NULL)
- {
- free (finfo.internal_relocs);
- finfo.internal_relocs = NULL;
- }
+#ifdef LOCAL_LABEL_PREFIX
+ /* If there is a prefix for local labels then look for this.
+ If the prefix exists, but it is empty, then ignore the test. */
- /* The value of the last C_FILE symbol is supposed to be the symbol
- index of the first external symbol. Write it out again if
- necessary. */
- if (finfo.last_file_index != -1
- && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd))
+ if (LOCAL_LABEL_PREFIX[0] != 0)
{
- finfo.last_file.n_value = obj_raw_syment_count (abfd);
- bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file,
- (PTR) finfo.outsyms);
- if (bfd_seek (abfd,
- (obj_sym_filepos (abfd)
- + finfo.last_file_index * symesz),
- SEEK_SET) != 0
- || bfd_write (finfo.outsyms, symesz, 1, abfd) != symesz)
- return false;
- }
+ size_t len = strlen (LOCAL_LABEL_PREFIX);
- /* Write out the global symbols. */
- finfo.failed = false;
- coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym,
- (PTR) &finfo);
- if (finfo.failed)
- goto error_return;
+ if (strncmp (name, LOCAL_LABEL_PREFIX, len) != 0)
+ return FALSE;
- /* The outsyms buffer is used by _bfd_coff_write_global_sym. */
- if (finfo.outsyms != NULL)
- {
- free (finfo.outsyms);
- finfo.outsyms = NULL;
+ /* Perform the checks below for the rest of the name. */
+ name += len;
}
+#endif
- if (info->relocateable)
- {
- /* Now that we have written out all the global symbols, we know
- the symbol indices to use for relocs against them, and we can
- finally write out the relocs. */
- external_relocs = ((bfd_byte *)
- bfd_malloc (max_output_reloc_count * relsz));
- if (external_relocs == NULL)
- goto error_return;
-
- for (o = abfd->sections; o != NULL; o = o->next)
- {
- struct internal_reloc *irel;
- struct internal_reloc *irelend;
- struct coff_link_hash_entry **rel_hash;
- bfd_byte *erel;
-
- if (o->reloc_count == 0)
- continue;
+ return name[0] == 'L';
+}
- irel = finfo.section_info[o->target_index].relocs;
- irelend = irel + o->reloc_count;
- rel_hash = finfo.section_info[o->target_index].rel_hashes;
- erel = external_relocs;
- for (; irel < irelend; irel++, rel_hash++, erel += relsz)
- {
- if (*rel_hash != NULL)
- {
- BFD_ASSERT ((*rel_hash)->indx >= 0);
- irel->r_symndx = (*rel_hash)->indx;
- }
- bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel);
- }
+/* This piece of machinery exists only to guarantee that the bfd that holds
+ the glue section is written last.
- if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0
- || bfd_write ((PTR) external_relocs, relsz, o->reloc_count,
- abfd) != relsz * o->reloc_count)
- goto error_return;
- }
+ This does depend on bfd_make_section attaching a new section to the
+ end of the section list for the bfd. */
- free (external_relocs);
- external_relocs = NULL;
- }
+static bfd_boolean
+coff_arm_link_output_has_begun (bfd * sub, struct coff_final_link_info * info)
+{
+ return (sub->output_has_begun
+ || sub == coff_arm_hash_table (info->info)->bfd_of_glue_owner);
+}
- /* Free up the section information. */
- if (finfo.section_info != NULL)
- {
- unsigned int i;
+static bfd_boolean
+coff_arm_final_link_postscript (bfd * abfd ATTRIBUTE_UNUSED,
+ struct coff_final_link_info * pfinfo)
+{
+ struct coff_arm_link_hash_table * globals;
- for (i = 0; i < abfd->section_count; i++)
- {
- if (finfo.section_info[i].relocs != NULL)
- free (finfo.section_info[i].relocs);
- if (finfo.section_info[i].rel_hashes != NULL)
- free (finfo.section_info[i].rel_hashes);
- }
- free (finfo.section_info);
- finfo.section_info = NULL;
- }
+ globals = coff_arm_hash_table (pfinfo->info);
- /* If we have optimized stabs strings, output them. */
- if (coff_hash_table (info)->stab_info != NULL)
- {
- if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info))
- return false;
- }
+ BFD_ASSERT (globals != NULL);
- /* Write out the string table. */
- if (obj_raw_syment_count (abfd) != 0)
+ if (globals->bfd_of_glue_owner != NULL)
{
- if (bfd_seek (abfd,
- (obj_sym_filepos (abfd)
- + obj_raw_syment_count (abfd) * symesz),
- SEEK_SET) != 0)
- return false;
-
-#if STRING_SIZE_SIZE == 4
- bfd_h_put_32 (abfd,
- _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE,
- (bfd_byte *) strbuf);
-#else
- #error Change bfd_h_put_32
-#endif
+ if (! _bfd_coff_link_input_bfd (pfinfo, globals->bfd_of_glue_owner))
+ return FALSE;
- if (bfd_write (strbuf, 1, STRING_SIZE_SIZE, abfd) != STRING_SIZE_SIZE)
- return false;
-
- if (! _bfd_stringtab_emit (abfd, finfo.strtab))
- return false;
+ globals->bfd_of_glue_owner->output_has_begun = TRUE;
}
- _bfd_stringtab_free (finfo.strtab);
-
- /* Setting bfd_get_symcount to 0 will cause write_object_contents to
- not try to write out the symbols. */
- bfd_get_symcount (abfd) = 0;
-
- return true;
-
- error_return:
- if (debug_merge_allocated)
- coff_debug_merge_hash_table_free (&finfo.debug_merge);
- if (finfo.strtab != NULL)
- _bfd_stringtab_free (finfo.strtab);
- if (finfo.section_info != NULL)
- {
- unsigned int i;
-
- for (i = 0; i < abfd->section_count; i++)
- {
- if (finfo.section_info[i].relocs != NULL)
- free (finfo.section_info[i].relocs);
- if (finfo.section_info[i].rel_hashes != NULL)
- free (finfo.section_info[i].rel_hashes);
- }
- free (finfo.section_info);
- }
- if (finfo.internal_syms != NULL)
- free (finfo.internal_syms);
- if (finfo.sec_ptrs != NULL)
- free (finfo.sec_ptrs);
- if (finfo.sym_indices != NULL)
- free (finfo.sym_indices);
- if (finfo.outsyms != NULL)
- free (finfo.outsyms);
- if (finfo.linenos != NULL)
- free (finfo.linenos);
- if (finfo.contents != NULL)
- free (finfo.contents);
- if (finfo.external_relocs != NULL)
- free (finfo.external_relocs);
- if (finfo.internal_relocs != NULL)
- free (finfo.internal_relocs);
- if (external_relocs != NULL)
- free (external_relocs);
- return false;
+ return bfd_arm_update_notes (abfd, ARM_NOTE_SECTION);
}
-static void
-arm_bfd_coff_swap_sym_in (abfd, ext1, in1)
- bfd *abfd;
- PTR ext1;
- PTR in1;
-{
- SYMENT *ext = (SYMENT *)ext1;
- struct internal_syment *in = (struct internal_syment *)in1;
- flagword flags;
- register asection *s;
-
- if( ext->e.e_name[0] == 0) {
- in->_n._n_n._n_zeroes = 0;
- in->_n._n_n._n_offset = bfd_h_get_32(abfd, (bfd_byte *) ext->e.e.e_offset);
- }
- else {
-#if SYMNMLEN != E_SYMNMLEN
- -> Error, we need to cope with truncating or extending SYMNMLEN!;
-#else
- memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN);
+#ifndef bfd_pe_print_pdata
+#define bfd_pe_print_pdata NULL
#endif
- }
- in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value);
- in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum);
- if (sizeof(ext->e_type) == 2){
- in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type);
- }
- else {
- in->n_type = bfd_h_get_32(abfd, (bfd_byte *) ext->e_type);
- }
- in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass);
- in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux);
-
- if (bfd_of_glue_owner != 0) /* we already have a toc, so go home */
- return;
-
- /* save the bfd for later allocation */
- bfd_of_glue_owner = abfd;
-
- s = bfd_get_section_by_name (bfd_of_glue_owner ,
- ARM2THUMB_GLUE_SECTION_NAME);
-
- if (s == NULL)
- {
- flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ;
-
- s = bfd_make_section (bfd_of_glue_owner , ARM2THUMB_GLUE_SECTION_NAME);
-
- if (s == NULL
- || !bfd_set_section_flags (bfd_of_glue_owner, s, flags)
- || !bfd_set_section_alignment (bfd_of_glue_owner, s, 2))
- {
- /* FIXME: set appropriate bfd error */
- abort();
- }
- }
- s = bfd_get_section_by_name ( bfd_of_glue_owner , THUMB2ARM_GLUE_SECTION_NAME);
-
- if (s == NULL)
- {
- flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY ;
-
- s = bfd_make_section (bfd_of_glue_owner , THUMB2ARM_GLUE_SECTION_NAME);
-
- if (s == NULL
- || !bfd_set_section_flags (bfd_of_glue_owner, s, flags)
- || !bfd_set_section_alignment (bfd_of_glue_owner, s, 2))
- {
- /* FIXME: set appropriate bfd error krk@cygnus.com */
- abort();
- }
- }
-
- return;
-}
+#include "coffcode.h"
-static bfd_coff_backend_data arm_bfd_coff_std_swap_table =
-{
- coff_swap_aux_in, arm_bfd_coff_swap_sym_in, coff_swap_lineno_in,
- coff_swap_aux_out, coff_swap_sym_out,
- coff_swap_lineno_out, coff_swap_reloc_out,
- coff_swap_filehdr_out, coff_swap_aouthdr_out,
- coff_swap_scnhdr_out,
- FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, RELSZ, LINESZ,
-#ifdef COFF_LONG_FILENAMES
- true,
-#else
- false,
+#ifndef TARGET_LITTLE_SYM
+#define TARGET_LITTLE_SYM arm_coff_le_vec
#endif
-#ifdef COFF_LONG_SECTION_NAMES
- true,
-#else
- false,
-#endif
- COFF_DEFAULT_SECTION_ALIGNMENT_POWER,
- coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in,
- coff_swap_reloc_in, coff_bad_format_hook, coff_set_arch_mach_hook,
- coff_mkobject_hook, styp_to_sec_flags, coff_set_alignment_hook,
- coff_slurp_symbol_table, symname_in_debug_hook, coff_pointerize_aux_hook,
- coff_print_aux, coff_reloc16_extra_cases, coff_reloc16_estimate,
- coff_sym_is_global, coff_compute_section_file_positions,
- coff_start_final_link, coff_relocate_section, coff_rtype_to_howto,
- coff_adjust_symndx, coff_link_add_one_symbol
-};
-
-const bfd_target
-#ifdef TARGET_LITTLE_SYM
-TARGET_LITTLE_SYM =
-#else
-armcoff_little_vec =
+#ifndef TARGET_LITTLE_NAME
+#define TARGET_LITTLE_NAME "coff-arm-little"
#endif
-{
-#ifdef TARGET_LITTLE_NAME
- TARGET_LITTLE_NAME,
-#else
- "coff-arm-little",
+#ifndef TARGET_BIG_SYM
+#define TARGET_BIG_SYM arm_coff_be_vec
#endif
- bfd_target_coff_flavour,
- BFD_ENDIAN_LITTLE, /* data byte order is little */
- BFD_ENDIAN_LITTLE, /* header byte order is little */
-
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
-
-#ifndef COFF_WITH_PE
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
-#else
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
- | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
+#ifndef TARGET_BIG_NAME
+#define TARGET_BIG_NAME "coff-arm-big"
#endif
-#ifdef TARGET_UNDERSCORE
- TARGET_UNDERSCORE, /* leading underscore */
-#else
- 0, /* leading underscore */
+#ifndef TARGET_UNDERSCORE
+#define TARGET_UNDERSCORE 0
#endif
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
-
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getl32, bfd_getl_signed_32, bfd_putl32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
- bfd_getl64, bfd_getl_signed_64, bfd_putl64,
- bfd_getl32, bfd_getl_signed_32, bfd_putl32,
- bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
-
-/* Note that we allow an object file to be treated as a core file as well. */
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, coff_object_p},
- {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
- bfd_false},
- {bfd_false, coff_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- BFD_JUMP_TABLE_GENERIC (coff),
- BFD_JUMP_TABLE_COPY (coff),
- BFD_JUMP_TABLE_CORE (_bfd_nocore),
- BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
- BFD_JUMP_TABLE_SYMBOLS (coff),
- BFD_JUMP_TABLE_RELOCS (coff),
- BFD_JUMP_TABLE_WRITE (coff),
- BFD_JUMP_TABLE_LINK (coff),
- BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
-
- & arm_bfd_coff_std_swap_table,
-};
-const bfd_target
-#ifdef TARGET_BIG_SYM
-TARGET_BIG_SYM =
+#ifndef EXTRA_S_FLAGS
+#ifdef COFF_WITH_PE
+#define EXTRA_S_FLAGS (SEC_CODE | SEC_LINK_ONCE | SEC_LINK_DUPLICATES)
#else
-armcoff_big_vec =
+#define EXTRA_S_FLAGS SEC_CODE
#endif
-{
-#ifdef TARGET_BIG_NAME
- TARGET_BIG_NAME,
-#else
- "coff-arm-big",
#endif
- bfd_target_coff_flavour,
- BFD_ENDIAN_BIG, /* data byte order is big */
- BFD_ENDIAN_BIG, /* header byte order is big */
- (HAS_RELOC | EXEC_P | /* object flags */
- HAS_LINENO | HAS_DEBUG |
- HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
-
-#ifndef COFF_WITH_PE
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
-#else
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
- | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
-#endif
+/* Forward declaration for use initialising alternative_target field. */
+extern const bfd_target TARGET_BIG_SYM ;
-#ifdef TARGET_UNDERSCORE
- TARGET_UNDERSCORE, /* leading underscore */
-#else
- 0, /* leading underscore */
-#endif
- '/', /* ar_pad_char */
- 15, /* ar_max_namelen */
-
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */
- bfd_getb64, bfd_getb_signed_64, bfd_putb64,
- bfd_getb32, bfd_getb_signed_32, bfd_putb32,
- bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */
-
-/* Note that we allow an object file to be treated as a core file as well. */
- {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
- bfd_generic_archive_p, coff_object_p},
- {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
- bfd_false},
- {bfd_false, coff_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- BFD_JUMP_TABLE_GENERIC (coff),
- BFD_JUMP_TABLE_COPY (coff),
- BFD_JUMP_TABLE_CORE (_bfd_nocore),
- BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
- BFD_JUMP_TABLE_SYMBOLS (coff),
- BFD_JUMP_TABLE_RELOCS (coff),
- BFD_JUMP_TABLE_WRITE (coff),
- BFD_JUMP_TABLE_LINK (coff),
- BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
-
- & arm_bfd_coff_std_swap_table,
-};
+/* Target vectors. */
+CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED, EXTRA_S_FLAGS, TARGET_UNDERSCORE, & TARGET_BIG_SYM, COFF_SWAP_TABLE)
+CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED, EXTRA_S_FLAGS, TARGET_UNDERSCORE, & TARGET_LITTLE_SYM, COFF_SWAP_TABLE)
projects / deliverable / binutils-gdb.git / blobdiff