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| author | Paul Brook <paul@codesourcery.com> | 2007-02-22 17:03:59 +0000 |
|---|---|---|
| committer | Paul Brook <paul@codesourcery.com> | 2007-02-22 17:03:59 +0000 |
| commit | 6a5bb8757e503d29dd2b0cc656a8747bca71362e (patch) | |
| tree | 739be2901b553d31859250350c69dc13a3454070 /bfd/elf32-arm.c | |
| parent | 115d86cfaa1c3ecbf7ce54222a7622a2adb994f9 (diff) | |
| download | gdb-6a5bb8757e503d29dd2b0cc656a8747bca71362e.zip gdb-6a5bb8757e503d29dd2b0cc656a8747bca71362e.tar.gz gdb-6a5bb8757e503d29dd2b0cc656a8747bca71362e.tar.bz2 | |
2007-02-22 Paul Brook <paul@codesourcery.com>
bfd/
* elflink.c (gc_mark_hook_fn): Remove.
(_bfd_elf_gc_mark): Rename gc_mark_hook_fn to elf_gc_mark_hook_fn.
(bfd_elf_gc_sections): Ditto. Call gc_mark_extra_sections.
* elf-bfd.h (elf_gc_mark_hook_fn): Define.
(elf_backend_data): Add gc_mark_extra_sections.
* elfxx-target.h (elf_backend_gc_mark_extra_sections): Provide default
definition.
(elfNN_bed): Add elf_backend_gc_mark_extra_sections.
* elf32-arm.c (elf32_arm_gc_mark_extra_sections): New function.
(elf_backend_gc_mark_extra_sections): Define.
ld/testsuite/
* ld-arm/arm-elf.exp (armelftests): Add gc-unwind.h.
* ld-arm/gc-unwind.s: New file.
* ld-arm/gc-unwind.d: New file.
Diffstat (limited to 'bfd/elf32-arm.c')
| -rw-r--r-- | bfd/elf32-arm.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c index 87d617f..78aa2a0 100644 --- a/bfd/elf32-arm.c +++ b/bfd/elf32-arm.c @@ -8150,6 +8150,50 @@ elf32_arm_check_relocs (bfd *abfd, struct bfd_link_info *info, return TRUE; } +/* Unwinding tables are not referenced directly. This pass marks them as + required if the corresponding code section is marked. */ + +static bfd_boolean +elf32_arm_gc_mark_extra_sections(struct bfd_link_info *info, + elf_gc_mark_hook_fn gc_mark_hook) +{ + bfd *sub; + Elf_Internal_Shdr **elf_shdrp; + bfd_boolean again; + + /* Marking EH data may cause additional code sections to be marked, + requiring multiple passes. */ + again = TRUE; + while (again) + { + again = FALSE; + for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) + { + asection *o; + + if (bfd_get_flavour (sub) != bfd_target_elf_flavour) + continue; + + elf_shdrp = elf_elfsections (sub); + for (o = sub->sections; o != NULL; o = o->next) + { + Elf_Internal_Shdr *hdr; + hdr = &elf_section_data (o)->this_hdr; + if (hdr->sh_type == SHT_ARM_EXIDX && hdr->sh_link + && !o->gc_mark + && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark) + { + again = TRUE; + if (!_bfd_elf_gc_mark (info, o, gc_mark_hook)) + return FALSE; + } + } + } + } + + return TRUE; +} + /* Treat mapping symbols as special target symbols. */ static bfd_boolean @@ -10532,6 +10576,7 @@ const struct elf_size_info elf32_arm_size_info = { #define elf_backend_get_symbol_type elf32_arm_get_symbol_type #define elf_backend_gc_mark_hook elf32_arm_gc_mark_hook +#define elf_backend_gc_mark_extra_sections elf32_arm_gc_mark_extra_sections #define elf_backend_gc_sweep_hook elf32_arm_gc_sweep_hook #define elf_backend_check_relocs elf32_arm_check_relocs #define elf_backend_relocate_section elf32_arm_relocate_section |