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| author | Alan Modra <amodra@gmail.com> | 2014-03-05 19:27:57 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2014-03-05 19:27:57 +1030 |
| commit | f50c47f1184b39831f7c8a8200bc349f47619ac3 (patch) | |
| tree | 4edc57abf92eaed468e6a165c928d5fdf783ec47 /gas | |
| parent | b2b255bdf3d29d97c10668b4bb5fceeb886a15f1 (diff) | |
| download | gdb-f50c47f1184b39831f7c8a8200bc349f47619ac3.zip gdb-f50c47f1184b39831f7c8a8200bc349f47619ac3.tar.gz gdb-f50c47f1184b39831f7c8a8200bc349f47619ac3.tar.bz2 | |
Remove magic treatment of toc symbols for powerpc ELF
The XCOFF assembler does some wierd things with instructions like
`lwz 9,sym(30'. See the comment in md_apply_fix. From an ELF
perspective, it's weird even to magically select a TOC16 reloc
when a symbol is in the TOC/GOT. ELF assemblers generally use
modifiers like @toc to select relocs, so remove this "feature"
for ELF. I believe this was to support gcc -m32 -mcall-aixdesc
but that combination of gcc options has been broken for a long
time.
* config/tc-ppc.c (ppc_is_toc_sym): Remove OBJ_ELF support.
(md_assemble): Don't call ppc_is_toc_sym for ELF.
Diffstat (limited to 'gas')
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-ppc.c | 37 |
2 files changed, 15 insertions, 27 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 88e9d81..e3ebd67 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2014-03-05 Alan Modra <amodra@gmail.com> + + * config/tc-ppc.c (ppc_is_toc_sym): Remove OBJ_ELF support. + (md_assemble): Don't call ppc_is_toc_sym for ELF. + 2014-03-04 Heiher <r@hev.cc> * config/tc-mips.c (mips_cpu_info_table): Use ISA_MIPS64R2 for diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c index 7c99e43..176b13c 100644 --- a/gas/config/tc-ppc.c +++ b/gas/config/tc-ppc.c @@ -2531,25 +2531,16 @@ parse_toc_entry (enum toc_size_qualifier *toc_kind) } #endif -#if defined (OBJ_XCOFF) || defined (OBJ_ELF) +#ifdef OBJ_XCOFF /* See whether a symbol is in the TOC section. */ static int ppc_is_toc_sym (symbolS *sym) { -#ifdef OBJ_XCOFF return (symbol_get_tc (sym)->symbol_class == XMC_TC || symbol_get_tc (sym)->symbol_class == XMC_TC0); -#endif -#ifdef OBJ_ELF - const char *sname = segment_name (S_GET_SEGMENT (sym)); - if (ppc_obj64) - return strcmp (sname, ".toc") == 0; - else - return strcmp (sname, ".got") == 0; -#endif } -#endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ +#endif #ifdef OBJ_ELF @@ -3280,25 +3271,17 @@ md_assemble (char *str) && (operand->bitm & 0xfff0) == 0xfff0 && operand->shift == 0) { - /* Note: the symbol may be not yet defined. */ - if (ppc_is_toc_sym (ex.X_add_symbol)) - { - reloc = BFD_RELOC_PPC_TOC16; + reloc = BFD_RELOC_16; #ifdef OBJ_ELF - if (ppc_obj64 - && (operand->flags & PPC_OPERAND_DS) != 0) - reloc = BFD_RELOC_PPC64_TOC16_DS; + if (ppc_obj64 + && (operand->flags & PPC_OPERAND_DS) != 0) + reloc = BFD_RELOC_PPC64_ADDR16_DS; #endif - } - else - { - reloc = BFD_RELOC_16; -#ifdef OBJ_ELF - if (ppc_obj64 - && (operand->flags & PPC_OPERAND_DS) != 0) - reloc = BFD_RELOC_PPC64_ADDR16_DS; +#ifdef OBJ_XCOFF + /* Note: the symbol may be not yet defined. */ + if (ppc_is_toc_sym (ex.X_add_symbol)) + reloc = BFD_RELOC_PPC_TOC16; #endif - } } #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */ |