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bfd/

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* elf64-ppc.c (struct ppc_link_hash_table): Add dot_toc_dot.
	(ppc64_elf_size_stubs): Lookup ".TOC.".
	(ppc64_elf_relocate_section): Resolve special symbol ".TOC.".
gas/
	* config/tc-ppc.c (ppc_elf_adjust_symtab): New function, split out..
	(ppc_frob_file_before_adjust): ..from here.
	(md_apply_fix): Set BSF_KEEP on .TOC. if not @tocbase.
	* config/tc-ppc.h (ppc_elf_adjust_symtab): Declare.
	(tc_adjust_symtab): Define.
This commit is contained in:
Alan Modra 2012-11-06 05:18:03 +00:00
parent 53d8967a85
commit a38a07e07c
5 changed files with 63 additions and 6 deletions
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8
bfd/ChangeLog
View File

@ -1,3 +1,9 @@
2012-11-06 Alan Modra <amodra@gmail.com>
* elf64-ppc.c (struct ppc_link_hash_table): Add dot_toc_dot.
(ppc64_elf_size_stubs): Lookup ".TOC.".
(ppc64_elf_relocate_section): Resolve special symbol ".TOC.".
2012-11-06 Alan Modra <amodra@gmail.com>
* elf64-ppc.c (maybe_strip_output): Heed SEC_KEEP.
@ -1589,7 +1595,7 @@
* reloc.c: Add new ENUM for BFD_RELOC_AVR_8_LO,
BFD_RELOC_AVR_8_HI, BFD_RELOC_AVR_8_HHI.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenrate.
* libbfd.h: Regenerate.
* elf32-avr.c (elf_avr_howto_table): Add entries for
R_AVR_8_LO8, R_AVR_8_HI8, R_AVR_8_HHI8.
(avr_reloc_map): Add RELOC mappings for R_AVR_8_LO8, R_AVR_8_HI8,

13
bfd/elf64-ppc.c
View File

@ -3757,6 +3757,9 @@ struct ppc_link_hash_table
struct ppc_link_hash_entry *tls_get_addr;
struct ppc_link_hash_entry *tls_get_addr_fd;
/* The special .TOC. symbol. */
struct ppc_link_hash_entry *dot_toc_dot;
/* The size of reliplt used by got entry relocs. */
bfd_size_type got_reli_size;
@ -11364,6 +11367,9 @@ ppc64_elf_size_stubs (struct bfd_link_info *info, bfd_signed_vma group_size,
}
}
htab->plt_thread_safe = plt_thread_safe;
htab->dot_toc_dot = ((struct ppc_link_hash_entry *)
elf_link_hash_lookup (&htab->elf, ".TOC.",
FALSE, FALSE, TRUE));
stubs_always_before_branch = group_size < 0;
if (group_size < 0)
stub_group_size = -group_size;
@ -12362,6 +12368,13 @@ ppc64_elf_relocate_section (bfd *output_bfd,
}
}
}
if (h_elf == &htab->dot_toc_dot->elf)
{
relocation = (TOCstart
+ htab->stub_group[input_section->id].toc_off);
sec = bfd_abs_section_ptr;
unresolved_reloc = FALSE;
}
}
h = (struct ppc_link_hash_entry *) h_elf;

8
gas/ChangeLog
View File

@ -1,3 +1,11 @@
2012-11-06 Alan Modra <amodra@gmail.com>
* config/tc-ppc.c (ppc_elf_adjust_symtab): New function, split out..
(ppc_frob_file_before_adjust): ..from here.
(md_apply_fix): Set BSF_KEEP on .TOC. if not @tocbase.
* config/tc-ppc.h (ppc_elf_adjust_symtab): Declare.
(tc_adjust_symtab): Define.
2012-11-06 Alan Modra <amodra@gmail.com>
* config/tc-ppc.c (md_apply_fix): Fix xcoff build breakage from

37
gas/config/tc-ppc.c
View File

@ -2323,11 +2323,28 @@ ppc_frob_file_before_adjust (void)
&& toc_reloc_types != has_large_toc_reloc
&& bfd_section_size (stdoutput, toc) > 0x10000)
as_warn (_("TOC section size exceeds 64k"));
}
/* Don't emit .TOC. symbol. */
symp = symbol_find (".TOC.");
if (symp != NULL)
symbol_remove (symp, &symbol_rootP, &symbol_lastP);
/* .TOC. used in an opd entry as .TOC.@tocbase doesn't need to be
emitted. Other uses of .TOC. will cause the symbol to be marked
with BSF_KEEP in md_apply_fix. */
void
ppc_elf_adjust_symtab (void)
{
if (ppc_obj64)
{
symbolS *symp;
symp = symbol_find (".TOC.");
if (symp != NULL)
{
asymbol *bsym = symbol_get_bfdsym (symp);
if ((bsym->flags & BSF_KEEP) == 0)
symbol_remove (symp, &symbol_rootP, &symbol_lastP);
else
S_SET_WEAK (symp);
}
}
}
#endif /* OBJ_ELF */
@ -6850,7 +6867,17 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
then the section contents are immaterial, so don't warn if they
happen to overflow. Leave such warnings to ld. */
if (!fixP->fx_done)
fixP->fx_no_overflow = 1;
{
fixP->fx_no_overflow = 1;
/* Arrange to emit .TOC. as a normal symbol if used in anything
but .TOC.@tocbase. */
if (ppc_obj64
&& fixP->fx_r_type != BFD_RELOC_PPC64_TOC
&& fixP->fx_addsy != NULL
&& strcmp (S_GET_NAME (fixP->fx_addsy), ".TOC.") == 0)
symbol_get_bfdsym (fixP->fx_addsy)->flags |= BSF_KEEP;
}
#else
if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
fixP->fx_addnumber = 0;

3
gas/config/tc-ppc.h
View File

@ -235,6 +235,9 @@ extern int ppc_fix_adjustable (struct fix *);
#define tc_frob_file_before_adjust ppc_frob_file_before_adjust
extern void ppc_frob_file_before_adjust (void);
#define tc_adjust_symtab() ppc_elf_adjust_symtab ()
extern void ppc_elf_adjust_symtab (void);
#endif /* OBJ_ELF */
#if defined (OBJ_ELF) || defined (OBJ_XCOFF)