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authorMaciej W. Rozycki <macro@linux-mips.org>2013-07-27 19:17:29 +0000
committerMaciej W. Rozycki <macro@linux-mips.org>2013-07-27 19:17:29 +0000
commitfac3d2414b62f31c0370bd198aa208e508ff9f7c (patch)
tree55b5dc513fcacb935bab916bc7dff378279eba30 /bfd/elf32-vax.c
parent7a60ad401761a2fc7d95ba164b90e4b58052ca86 (diff)
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* elf32-vax.c (elf_vax_discard_got_entries): New function.
(elf_vax_always_size_sections): Likewise. (elf_vax_size_dynamic_sections): Remove code moved to elf_vax_always_size_sections. Make comment on elf_vax_instantiate_got_entries match reality. (elf_vax_instantiate_got_entries): Assert that rather than check if dynobj is null. Don't check for dynamic_sections_created. Make function description match reality. (elf_backend_always_size_sections): New macro.
Diffstat (limited to 'bfd/elf32-vax.c')
-rw-r--r--bfd/elf32-vax.c96
1 files changed, 66 insertions, 30 deletions
diff --git a/bfd/elf32-vax.c b/bfd/elf32-vax.c
index 77b8e0d..30afb15 100644
--- a/bfd/elf32-vax.c
+++ b/bfd/elf32-vax.c
@@ -1050,6 +1050,59 @@ elf_vax_adjust_dynamic_symbol (struct bfd_link_info *info,
return _bfd_elf_adjust_dynamic_copy (h, s);
}
+/* This function is called via elf_link_hash_traverse. It resets GOT
+ and PLT (.GOT) reference counts back to -1 so normal PC32 relocation
+ will be done. */
+
+static bfd_boolean
+elf_vax_discard_got_entries (struct elf_link_hash_entry *h,
+ void *infoptr ATTRIBUTE_UNUSED)
+{
+ h->got.refcount = -1;
+ h->plt.refcount = -1;
+
+ return TRUE;
+}
+
+/* Discard unused dynamic data if this is a static link. */
+
+static bfd_boolean
+elf_vax_always_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info)
+{
+ bfd *dynobj;
+ asection *s;
+
+ dynobj = elf_hash_table (info)->dynobj;
+
+ if (dynobj && !elf_hash_table (info)->dynamic_sections_created)
+ {
+ /* We may have created entries in the .rela.got and .got sections.
+ However, if we are not creating the dynamic sections, we will
+ not actually use these entries. Reset the size of .rela.got
+ and .got, which will cause it to get stripped from the output
+ file below. */
+ s = bfd_get_linker_section (dynobj, ".rela.got");
+ if (s != NULL)
+ s->size = 0;
+ s = bfd_get_linker_section (dynobj, ".got.plt");
+ if (s != NULL)
+ s->size = 0;
+ s = bfd_get_linker_section (dynobj, ".got");
+ if (s != NULL)
+ s->size = 0;
+ }
+
+ /* If this is a static link, we need to discard all the got entries we've
+ recorded. */
+ if (!dynobj || !elf_hash_table (info)->dynamic_sections_created)
+ elf_link_hash_traverse (elf_hash_table (info),
+ elf_vax_discard_got_entries,
+ info);
+
+ return TRUE;
+}
+
/* Set the sizes of the dynamic sections. */
static bfd_boolean
@@ -1075,23 +1128,6 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
}
}
- else
- {
- /* We may have created entries in the .rela.got and .got sections.
- However, if we are not creating the dynamic sections, we will
- not actually use these entries. Reset the size of .rela.got
- and .got, which will cause it to get stripped from the output
- file below. */
- s = bfd_get_linker_section (dynobj, ".rela.got");
- if (s != NULL)
- s->size = 0;
- s = bfd_get_linker_section (dynobj, ".got.plt");
- if (s != NULL)
- s->size = 0;
- s = bfd_get_linker_section (dynobj, ".got");
- if (s != NULL)
- s->size = 0;
- }
/* If this is a -Bsymbolic shared link, then we need to discard all PC
relative relocs against symbols defined in a regular object. We
@@ -1102,9 +1138,9 @@ elf_vax_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
elf_vax_discard_copies,
NULL);
- /* If this is a -Bsymbolic shared link or a static link, we need to
- discard all the got entries we've recorded. Otherwise, we need to
- instantiate (allocate space for them). */
+ /* If this is a -Bsymbolic shared link, we need to discard all the got
+ entries we've recorded. Otherwise, we need to instantiate (allocate
+ space for them). */
elf_link_hash_traverse (elf_hash_table (info),
elf_vax_instantiate_got_entries,
info);
@@ -1260,12 +1296,12 @@ elf_vax_discard_copies (struct elf_vax_link_hash_entry *h,
return TRUE;
}
-/* This function is called via elf_link_hash_traverse. It looks for entries
- that have GOT or PLT (.GOT) references. If creating a static object or a
- shared object with -Bsymbolic, or the symbol has been forced local, then
- it resets the reference count back to -1 so normal PC32 relocation will
- be done. Otherwise space in the .got and .rela.got will be reserved for
- the symbol. */
+/* This function is called via elf_link_hash_traverse. It looks for
+ entries that have GOT or PLT (.GOT) references. If creating a shared
+ object with -Bsymbolic, or the symbol has been forced local, then it
+ resets the reference count back to -1 so normal PC32 relocation will
+ be done. Otherwise space in the .got and .rela.got will be reserved
+ for the symbol. */
static bfd_boolean
elf_vax_instantiate_got_entries (struct elf_link_hash_entry *h, void * infoptr)
@@ -1280,14 +1316,12 @@ elf_vax_instantiate_got_entries (struct elf_link_hash_entry *h, void * infoptr)
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
- if (dynobj == NULL)
- return TRUE;
+ BFD_ASSERT (dynobj != NULL);
sgot = bfd_get_linker_section (dynobj, ".got");
srelgot = bfd_get_linker_section (dynobj, ".rela.got");
- if (!elf_hash_table (info)->dynamic_sections_created
- || (info->shared && info->symbolic)
+ if ((info->shared && info->symbolic)
|| h->forced_local)
{
h->got.refcount = -1;
@@ -2065,6 +2099,8 @@ elf_vax_plt_sym_val (bfd_vma i, const asection *plt,
#define elf_backend_check_relocs elf_vax_check_relocs
#define elf_backend_adjust_dynamic_symbol \
elf_vax_adjust_dynamic_symbol
+#define elf_backend_always_size_sections \
+ elf_vax_always_size_sections
#define elf_backend_size_dynamic_sections \
elf_vax_size_dynamic_sections
#define elf_backend_init_index_section _bfd_elf_init_1_index_section