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Make elf section symbols global for link-once sections.

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This commit is contained in:
Alan Modra 2000-10-07 12:52:15 +00:00
parent d742f2c220
commit 44852b190c
5 changed files with 32 additions and 4 deletions
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4
bfd/ChangeLog
View File

@ -1,3 +1,7 @@
2000-10-07 Alan Modra <alan@linuxcare.com.au>
* elf.c (swap_out_syms): Handle global section symbols.
2000-10-05 DJ Delorie <dj@redhat.com>
* peigen.c (_bfd_pei_swap_scnhdr_out): note extended relocs

8
bfd/elf.c
View File

@ -4352,8 +4352,9 @@ swap_out_syms (abfd, sttp, relocatable_p)
flagword flags = syms[idx]->flags;
int type;
if (flags & BSF_SECTION_SYM)
/* Section symbols have no names. */
/* Section symbols usually have no name. The exception is
link-once section symbols, which we make global. */
if ((flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM)
sym.st_name = 0;
else
{
@ -4461,7 +4462,8 @@ swap_out_syms (abfd, sttp, relocatable_p)
type = (*bed->elf_backend_get_symbol_type) (&type_ptr->internal_elf_sym, type);
if (flags & BSF_SECTION_SYM)
sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION);
sym.st_info = ELF_ST_INFO ((flags & BSF_GLOBAL
? STB_GLOBAL : STB_LOCAL), STT_SECTION);
else if (bfd_is_com_section (syms[idx]->section))
sym.st_info = ELF_ST_INFO (STB_GLOBAL, type);
else if (bfd_is_und_section (syms[idx]->section))

7
gas/ChangeLog
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@ -1,3 +1,10 @@
2000-10-07 Alan Modra <alan@linuxcare.com.au>
* write.c (write_relocs): Fix a comment.
* config/obj-elf.c (elf_frob_symbol): Make section syms global on
link-once sections.
2000-10-05 Jim Wilson <wilson@cygnus.com>
* config/tc-ia64.c (resources_match): Handle IA64_RS_PRr.

15
gas/config/obj-elf.c
View File

@ -1742,6 +1742,21 @@ elf_frob_symbol (symp, puntp)
&& S_IS_DEFINED (symp))
symbol_get_bfdsym (symp)->flags |= BSF_OBJECT;
#endif
if (symbol_section_p (symp))
{
asection *symsec = S_GET_SEGMENT (symp);
if ((bfd_get_section_flags (stdoutput, symsec) & SEC_LINK_ONCE) != 0
|| strncmp (segment_name (symsec), ".gnu.linkonce",
sizeof ".gnu.linkonce" - 1) == 0)
{
/* Make section syms global on ELF linkonce sections.
This way, any reference to the section symbol will
resolve to the section that actually stays in. */
S_SET_EXTERNAL (symp);
}
}
}
void

2
gas/write.c
View File

@ -1008,7 +1008,7 @@ write_relocs (abfd, sec, xxx)
}
/* If this is an undefined symbol which was equated to another
symbol, then use generate the reloc against the latter symbol
symbol, then generate the reloc against the latter symbol
rather than the former. */
sym = fixp->fx_addsy;
while (symbol_equated_p (sym)