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Alpha DT_RELA

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* elf64-alpha.c (elf64_alpha_size_dynamic_sections): Only emit
	DT_RELA, DT_RELASZ, and DT_RELAENT when DT_RELASZ is non-zero.
This commit is contained in:
Alan Modra
2017-02-20 17:57:43 +10:30
parent 262062fffd
commit 24f1a75169
2 changed files with 19 additions and 8 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
2017-02-21 Alan Modra <amodra@gmail.com>
* elf64-alpha.c (elf64_alpha_size_dynamic_sections): Only emit
DT_RELA, DT_RELASZ, and DT_RELAENT when DT_RELASZ is non-zero.
2017-02-20 Alan Modra <amodra@gmail.com> 2017-02-20 Alan Modra <amodra@gmail.com>
PR 21181 PR 21181

22
bfd/elf64-alpha.c
View File

@ -2879,7 +2879,7 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
{ {
bfd *dynobj; bfd *dynobj;
asection *s; asection *s;
bfd_boolean relplt; bfd_boolean relplt, relocs;
struct alpha_elf_link_hash_table * htab; struct alpha_elf_link_hash_table * htab;
htab = alpha_elf_hash_table (info); htab = alpha_elf_hash_table (info);
@ -2916,6 +2916,7 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
determined the sizes of the various dynamic sections. Allocate determined the sizes of the various dynamic sections. Allocate
memory for them. */ memory for them. */
relplt = FALSE; relplt = FALSE;
relocs = FALSE;
for (s = dynobj->sections; s != NULL; s = s->next) for (s = dynobj->sections; s != NULL; s = s->next)
{ {
const char *name; const char *name;
@ -2933,6 +2934,8 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
{ {
if (strcmp (name, ".rela.plt") == 0) if (strcmp (name, ".rela.plt") == 0)
relplt = TRUE; relplt = TRUE;
else
relocs = TRUE;
/* We use the reloc_count field as a counter if we need /* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */ to copy relocs into the output file. */
@ -2997,15 +3000,18 @@ elf64_alpha_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
return FALSE; return FALSE;
} }
if (!add_dynamic_entry (DT_RELA, 0) if (relocs)
|| !add_dynamic_entry (DT_RELASZ, 0)
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
return FALSE;
if (info->flags & DF_TEXTREL)
{ {
if (!add_dynamic_entry (DT_TEXTREL, 0)) if (!add_dynamic_entry (DT_RELA, 0)
|| !add_dynamic_entry (DT_RELASZ, 0)
|| !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
return FALSE; return FALSE;
if (info->flags & DF_TEXTREL)
{
if (!add_dynamic_entry (DT_TEXTREL, 0))
return FALSE;
}
} }
} }
#undef add_dynamic_entry #undef add_dynamic_entry