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* elf64-alpha.c (ALPHA_ELF_GOT_ENTRY_RELOCS_XLATED): Defined. 

(elf64_alpha_relocate_section): Translate local_got_entries
	for STT_SECTION symbol to SHF_MERGE section the first time
	we see it.
	* elfxx-ia64.c (struct elfNN_ia64_local_hash_entry): Add
	sec_merge_done.
	(get_local_sym_hash): New, extracted from get_dyn_sym_info.
	(get_dyn_sym_info): Use it.
	(elfNN_ia64_relocate_section): Translate local dyn entries
	for STT_SECTION symbol to SHF_MERGE section the first time
	we see it.

        * write.c (adjust_reloc_syms): Mark SEC_MERGE symbols as used
        in reloc if it has non-zero addend.
        * config/tc-alpha.c (tc_gen_reloc): Reinstall SEC_MERGE check.
        * config/tc-sparc.c (md_apply_fix3): Likewise.
This commit is contained in:
Jakub Jelinek 2001-11-28 19:15:14 +00:00
parent 607334a109
commit f7460f5f76
7 changed files with 129 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
bfd/ChangeLog
View File

@ -1,3 +1,17 @@
2001-11-28 Jakub Jelinek <jakub@redhat.com>
* elf64-alpha.c (ALPHA_ELF_GOT_ENTRY_RELOCS_XLATED): Defined.
(elf64_alpha_relocate_section): Translate local_got_entries
for STT_SECTION symbol to SHF_MERGE section the first time
we see it.
* elfxx-ia64.c (struct elfNN_ia64_local_hash_entry): Add
sec_merge_done.
(get_local_sym_hash): New, extracted from get_dyn_sym_info.
(get_dyn_sym_info): Use it.
(elfNN_ia64_relocate_section): Translate local dyn entries
for STT_SECTION symbol to SHF_MERGE section the first time
we see it.
2001-11-27 H.J. Lu <hjl@gnu.org>
* elflink.h (elf_bfd_discard_info): Skip if the input bfd isn't

34
bfd/elf64-alpha.c
View File

@ -170,8 +170,9 @@ struct alpha_elf_link_hash_entry
int flags;
/* An additional flag. */
/* Additional flags. */
#define ALPHA_ELF_GOT_ENTRY_RELOCS_DONE 0x10
#define ALPHA_ELF_GOT_ENTRY_RELOCS_XLATED 0x20
int use_count;
} *got_entries;
@ -3400,6 +3401,37 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section,
gotent = (alpha_elf_tdata(input_bfd)->
local_got_entries[r_symndx]);
dynamic_symbol = false;
/* Need to adjust local GOT entries' addends for SEC_MERGE
unless it has been done already. */
if ((sec->flags & SEC_MERGE)
&& ELF_ST_TYPE (sym->st_info) == STT_SECTION
&& elf_section_data (sec)->merge_info
&& (gotent->flags & ALPHA_ELF_GOT_ENTRY_RELOCS_XLATED) == 0)
{
struct alpha_elf_got_entry *ent;
asection *msec;
for (ent = gotent; ent; ent = ent->next)
{
ent->flags |= ALPHA_ELF_GOT_ENTRY_RELOCS_XLATED;
if (ent->use_count == 0)
continue;
msec = sec;
ent->addend =
_bfd_merged_section_offset (output_bfd, &msec,
elf_section_data (sec)->
merge_info,
sym->st_value
+ ent->addend,
(bfd_vma) 0);
ent->addend -= sym->st_value;
ent->addend += msec->output_section->vma
+ msec->output_offset
- sec->output_section->vma
- sec->output_offset;
}
}
}
BFD_ASSERT(gotent != NULL);

80
bfd/elfxx-ia64.c
View File

@ -111,6 +111,10 @@ struct elfNN_ia64_local_hash_entry
{
struct bfd_hash_entry root;
struct elfNN_ia64_dyn_sym_info *info;
/* True if this hash entry's addends was translated for
SHF_MERGE optimization. */
unsigned sec_merge_done : 1;
};
struct elfNN_ia64_local_hash_table
@ -216,6 +220,9 @@ static void elfNN_ia64_dyn_sym_traverse
PTR info));
static boolean elfNN_ia64_create_dynamic_sections
PARAMS ((bfd *abfd, struct bfd_link_info *info));
static struct elfNN_ia64_local_hash_entry * get_local_sym_hash
PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
bfd *abfd, const Elf_Internal_Rela *rel, boolean create));
static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
struct elf_link_hash_entry *h,
@ -1719,6 +1726,32 @@ elfNN_ia64_create_dynamic_sections (abfd, info)
return true;
}
/* Find and/or create a hash entry for local symbol. */
static struct elfNN_ia64_local_hash_entry *
get_local_sym_hash (ia64_info, abfd, rel, create)
struct elfNN_ia64_link_hash_table *ia64_info;
bfd *abfd;
const Elf_Internal_Rela *rel;
boolean create;
{
char *addr_name;
size_t len;
/* Construct a string for use in the elfNN_ia64_local_hash_table.
name describes what was once anonymous memory. */
len = sizeof (void*)*2 + 1 + sizeof (bfd_vma)*4 + 1 + 1;
len += 10; /* %p slop */
addr_name = alloca (len);
sprintf (addr_name, "%p:%lx",
(void *) abfd, (unsigned long) ELFNN_R_SYM (rel->r_info));
/* Collect the canonical entry data for this address. */
return elfNN_ia64_local_hash_lookup (&ia64_info->loc_hash_table,
addr_name, create, create);
}
/* Find and/or create a descriptor for dynamic symbol info. This will
vary based on global or local symbol, and the addend to the reloc. */
@ -1739,22 +1772,8 @@ get_dyn_sym_info (ia64_info, h, abfd, rel, create)
else
{
struct elfNN_ia64_local_hash_entry *loc_h;
char *addr_name;
size_t len;
/* Construct a string for use in the elfNN_ia64_local_hash_table.
The name describes what was once anonymous memory. */
len = sizeof (void*)*2 + 1 + sizeof (bfd_vma)*4 + 1 + 1;
len += 10; /* %p slop */
addr_name = alloca (len);
sprintf (addr_name, "%p:%lx",
(void *) abfd, (unsigned long) ELFNN_R_SYM (rel->r_info));
/* Collect the canonical entry data for this address. */
loc_h = elfNN_ia64_local_hash_lookup (&ia64_info->loc_hash_table,
addr_name, create, create);
loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
BFD_ASSERT (loc_h);
pp = &loc_h->info;
@ -3482,6 +3501,37 @@ elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
sym = local_syms + r_symndx;
sym_sec = local_sections[r_symndx];
value = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel);
if ((sym_sec->flags & SEC_MERGE)
&& ELF_ST_TYPE (sym->st_info) == STT_SECTION
&& elf_section_data (sym_sec)->merge_info)
{
struct elfNN_ia64_local_hash_entry *loc_h;
loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, false);
if (loc_h && ! loc_h->sec_merge_done)
{
struct elfNN_ia64_dyn_sym_info *dynent;
asection *msec;
for (dynent = loc_h->info; dynent; dynent = dynent->next)
{
msec = sym_sec;
dynent->addend =
_bfd_merged_section_offset (output_bfd, &msec,
elf_section_data (msec)->
merge_info,
sym->st_value
+ dynent->addend,
(bfd_vma) 0);
dynent->addend -= sym->st_value;
dynent->addend += msec->output_section->vma
+ msec->output_offset
- sym_sec->output_section->vma
- sym_sec->output_offset;
}
loc_h->sec_merge_done = 1;
}
}
}
else
{

7
gas/ChangeLog
View File

@ -1,3 +1,10 @@
2001-11-28 Jakub Jelinek <jakub@redhat.com>
* write.c (adjust_reloc_syms): Mark SEC_MERGE symbols as used
in reloc if it has non-zero addend.
* config/tc-alpha.c (tc_gen_reloc): Reinstall SEC_MERGE check.
* config/tc-sparc.c (md_apply_fix3): Likewise.
2001-11-28 Andreas Schwab <schwab@suse.de>
* as.c (parse_args): Call md_after_parse_args if defined.

3
gas/config/tc-alpha.c
View File

@ -1507,7 +1507,8 @@ tc_gen_reloc (sec, fixp)
* at assembly time. bfd_perform_reloc doesn't know about this sort
* of thing, and as a result we need to fake it out here.
*/
if ((S_IS_EXTERN (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy))
if ((S_IS_EXTERN (fixp->fx_addsy) || S_IS_WEAK (fixp->fx_addsy)
|| (S_GET_SEGMENT (fixp->fx_addsy)->flags & SEC_MERGE))
&& !S_IS_COMMON (fixp->fx_addsy))
reloc->addend -= symbol_get_bfdsym (fixp->fx_addsy)->value;
#endif

5
gas/config/tc-sparc.c
View File

@ -2909,12 +2909,7 @@ md_apply_fix3 (fixP, valP, segment)
if (symbol_used_in_reloc_p (sym)
&& (S_IS_EXTERNAL (sym)
|| S_IS_WEAK (sym)
#if 0 /* Although fixups against local symbols in SEC_MERGE sections
should be treated as if they were against external symbols
write.c:fixup_segment() will not have included the value of
the symbol under these particular cicumstances. */
|| (seg->flags & SEC_MERGE)
#endif
|| (sparc_pic_code && ! fixP->fx_pcrel)
|| (seg != segment
&& (((bfd_get_section_flags (stdoutput, seg) & SEC_LINK_ONCE) != 0)

8
gas/write.c
View File

@ -873,6 +873,14 @@ adjust_reloc_syms (abfd, sec, xxx)
symbol_mark_used_in_reloc (fixp->fx_addsy);
goto done;
}
/* Never adjust a reloc against local symbol in a merge section
with non-zero addend. */
if ((symsec->flags & SEC_MERGE) && fixp->fx_offset)
{
symbol_mark_used_in_reloc (fixp->fx_addsy);
goto done;
}
#endif
/* Is there some other reason we can't adjust this one? (E.g.,