diff options
author | Alan Modra <amodra@gmail.com> | 2009-03-04 05:50:50 +0000 |
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committer | Alan Modra <amodra@gmail.com> | 2009-03-04 05:50:50 +0000 |
commit | 727fc41e077139570ea8b8ddfd6c546b2a55627c (patch) | |
tree | cb2e0c6f5409224e1658daa9ca5b8e8fea3a4503 /gas/config/tc-ppc.c | |
parent | 51dec22749b3733b1fa3df0c1290a50967887ccf (diff) | |
download | fsf-binutils-gdb-727fc41e077139570ea8b8ddfd6c546b2a55627c.zip fsf-binutils-gdb-727fc41e077139570ea8b8ddfd6c546b2a55627c.tar.gz fsf-binutils-gdb-727fc41e077139570ea8b8ddfd6c546b2a55627c.tar.bz2 |
include/elf/
* ppc.h (R_PPC_TLSGD, R_PPC_TLSLD): Add new relocs.
* ppc64.h (R_PPC64_TLSGD, R_PPC64_TLSLD): Add new relocs.
bfd/
* reloc.c (BFD_RELOC_PPC_TLSGD, BFD_RELOC_PPC_TLSLD): New.
* section.c (struct bfd_section): Add has_tls_get_addr_call.
(BFD_FAKE_SECTION): Init new flag.
* ecoff.c (bfd_debug_section): Likewise.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* elf32-ppc.c (ppc_elf_howto_raw): Add R_PPC_TLSGD and R_PPC_TLSLD.
(ppc_elf_reloc_type_lookup): Handle new relocs.
(ppc_elf_check_relocs): Set has_tls_get_addr_call on finding such
without marker relocs.
(ppc_elf_tls_optimize): Allow out-of-order __tls_get_addr relocs
if section has no old-style calls.
(ppc_elf_relocate_section): Set tls_mask for non-tls relocs too.
Don't try to optimize new-style __tls_get_addr call when handling
arg setup relocs. Instead do so for R_PPC_TLSGD and R_PPC_TLSLD
relocs.
* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_TLSGD, R_PPC64_TLSLD.
(ppc64_elf_reloc_type_lookup): Handle new relocs.
(ppc64_elf_check_relocs): Set has_tls_get_addr_call on finding such
without marker relocs.
(ppc64_elf_tls_optimize): Allow out-of-order __tls_get_addr relocs
if section has no old-style calls. Set toc_ref for new relocs as
appropriate.
(ppc64_elf_relocate_section): Set tls_mask for non-tls relocs too.
Don't try to optimize new-style __tls_get_addr call when handling
arg setup relocs. Instead do so for R_PPC_TLSGD and R_PPC_TLSLD
relocs.
gas/
* config/tc-ppc.c (ppc_elf_suffix): Error if ppc32 tls got relocs
have non-zero addend.
(md_assemble): Parse args of __tls_get_addr calls.
(md_apply_fix): Handle BFD_RELOC_PPC_TLSGD and BFD_RELOC_PPC_TLSLD.
ld/testsuite/
* ld-powerpc/tlsmark.s, * ld-powerpc/tlsmark.d: New test.
* ld-powerpc/tlsmark32.s, * ld-powerpc/tlsmark32.d: New test.
* ld-powerpc/powerpc.exp: Run them.
Diffstat (limited to 'gas/config/tc-ppc.c')
-rw-r--r-- | gas/config/tc-ppc.c | 293 |
1 files changed, 185 insertions, 108 deletions
diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c index c80dd18..8b5c662 100644 --- a/gas/config/tc-ppc.c +++ b/gas/config/tc-ppc.c @@ -1974,13 +1974,38 @@ ppc_elf_suffix (char **str_p, expressionS *exp_p) { int reloc = ptr->reloc; - if (!ppc_obj64) - if (exp_p->X_add_number != 0 - && (reloc == (int) BFD_RELOC_16_GOTOFF - || reloc == (int) BFD_RELOC_LO16_GOTOFF - || reloc == (int) BFD_RELOC_HI16_GOTOFF - || reloc == (int) BFD_RELOC_HI16_S_GOTOFF)) - as_warn (_("identifier+constant@got means identifier@got+constant")); + if (!ppc_obj64 && exp_p->X_add_number != 0) + { + switch (reloc) + { + case BFD_RELOC_16_GOTOFF: + case BFD_RELOC_LO16_GOTOFF: + case BFD_RELOC_HI16_GOTOFF: + case BFD_RELOC_HI16_S_GOTOFF: + as_warn (_("identifier+constant@got means " + "identifier@got+constant")); + break; + + case BFD_RELOC_PPC_GOT_TLSGD16: + case BFD_RELOC_PPC_GOT_TLSGD16_LO: + case BFD_RELOC_PPC_GOT_TLSGD16_HI: + case BFD_RELOC_PPC_GOT_TLSGD16_HA: + case BFD_RELOC_PPC_GOT_TLSLD16: + case BFD_RELOC_PPC_GOT_TLSLD16_LO: + case BFD_RELOC_PPC_GOT_TLSLD16_HI: + case BFD_RELOC_PPC_GOT_TLSLD16_HA: + case BFD_RELOC_PPC_GOT_DTPREL16: + case BFD_RELOC_PPC_GOT_DTPREL16_LO: + case BFD_RELOC_PPC_GOT_DTPREL16_HI: + case BFD_RELOC_PPC_GOT_DTPREL16_HA: + case BFD_RELOC_PPC_GOT_TPREL16: + case BFD_RELOC_PPC_GOT_TPREL16_LO: + case BFD_RELOC_PPC_GOT_TPREL16_HI: + case BFD_RELOC_PPC_GOT_TPREL16_HA: + as_bad (_("symbol+offset not supported for got tls")); + break; + } + } /* Now check for identifier@suffix+constant. */ if (*str == '-' || *str == '+') @@ -2797,121 +2822,168 @@ md_assemble (char *str) ppc_cpu, (char *) NULL, 0); } #ifdef OBJ_ELF - else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) + else { - /* Some TLS tweaks. */ - switch (reloc) + if (ex.X_op == O_symbol && str[0] == '(') { - default: - break; - case BFD_RELOC_PPC_TLS: - insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2, - ppc_cpu, (char *) NULL, 0); - break; - /* We'll only use the 32 (or 64) bit form of these relocations - in constants. Instructions get the 16 bit form. */ - case BFD_RELOC_PPC_DTPREL: - reloc = BFD_RELOC_PPC_DTPREL16; - break; - case BFD_RELOC_PPC_TPREL: - reloc = BFD_RELOC_PPC_TPREL16; - break; - } + const char *sym_name = S_GET_NAME (ex.X_add_symbol); + if (sym_name[0] == '.') + ++sym_name; - /* For the absolute forms of branches, convert the PC - relative form back into the absolute. */ - if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) - { - switch (reloc) + if (strcasecmp (sym_name, "__tls_get_addr") == 0) { - case BFD_RELOC_PPC_B26: - reloc = BFD_RELOC_PPC_BA26; - break; - case BFD_RELOC_PPC_B16: - reloc = BFD_RELOC_PPC_BA16; - break; - case BFD_RELOC_PPC_B16_BRTAKEN: - reloc = BFD_RELOC_PPC_BA16_BRTAKEN; - break; - case BFD_RELOC_PPC_B16_BRNTAKEN: - reloc = BFD_RELOC_PPC_BA16_BRNTAKEN; - break; - default: - break; + expressionS tls_exp; + + hold = input_line_pointer; + input_line_pointer = str + 1; + expression (&tls_exp); + if (tls_exp.X_op == O_symbol) + { + reloc = BFD_RELOC_UNUSED; + if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0) + { + reloc = BFD_RELOC_PPC_TLSGD; + input_line_pointer += 7; + } + else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0) + { + reloc = BFD_RELOC_PPC_TLSLD; + input_line_pointer += 7; + } + if (reloc != BFD_RELOC_UNUSED) + { + SKIP_WHITESPACE (); + str = input_line_pointer; + + if (fc >= MAX_INSN_FIXUPS) + as_fatal (_("too many fixups")); + fixups[fc].exp = tls_exp; + fixups[fc].opindex = *opindex_ptr; + fixups[fc].reloc = reloc; + ++fc; + } + } + input_line_pointer = hold; } } - if (ppc_obj64 - && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0) + if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED) { + /* Some TLS tweaks. */ switch (reloc) { - case BFD_RELOC_16: - reloc = BFD_RELOC_PPC64_ADDR16_DS; - break; - case BFD_RELOC_LO16: - reloc = BFD_RELOC_PPC64_ADDR16_LO_DS; - break; - case BFD_RELOC_16_GOTOFF: - reloc = BFD_RELOC_PPC64_GOT16_DS; - break; - case BFD_RELOC_LO16_GOTOFF: - reloc = BFD_RELOC_PPC64_GOT16_LO_DS; - break; - case BFD_RELOC_LO16_PLTOFF: - reloc = BFD_RELOC_PPC64_PLT16_LO_DS; - break; - case BFD_RELOC_16_BASEREL: - reloc = BFD_RELOC_PPC64_SECTOFF_DS; - break; - case BFD_RELOC_LO16_BASEREL: - reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS; - break; - case BFD_RELOC_PPC_TOC16: - reloc = BFD_RELOC_PPC64_TOC16_DS; - break; - case BFD_RELOC_PPC64_TOC16_LO: - reloc = BFD_RELOC_PPC64_TOC16_LO_DS; - break; - case BFD_RELOC_PPC64_PLTGOT16: - reloc = BFD_RELOC_PPC64_PLTGOT16_DS; - break; - case BFD_RELOC_PPC64_PLTGOT16_LO: - reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS; - break; - case BFD_RELOC_PPC_DTPREL16: - reloc = BFD_RELOC_PPC64_DTPREL16_DS; - break; - case BFD_RELOC_PPC_DTPREL16_LO: - reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS; - break; - case BFD_RELOC_PPC_TPREL16: - reloc = BFD_RELOC_PPC64_TPREL16_DS; + default: break; - case BFD_RELOC_PPC_TPREL16_LO: - reloc = BFD_RELOC_PPC64_TPREL16_LO_DS; + + case BFD_RELOC_PPC_TLS: + insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2, + ppc_cpu, (char *) NULL, 0); break; - case BFD_RELOC_PPC_GOT_DTPREL16: - case BFD_RELOC_PPC_GOT_DTPREL16_LO: - case BFD_RELOC_PPC_GOT_TPREL16: - case BFD_RELOC_PPC_GOT_TPREL16_LO: + + /* We'll only use the 32 (or 64) bit form of these relocations + in constants. Instructions get the 16 bit form. */ + case BFD_RELOC_PPC_DTPREL: + reloc = BFD_RELOC_PPC_DTPREL16; break; - default: - as_bad (_("unsupported relocation for DS offset field")); + case BFD_RELOC_PPC_TPREL: + reloc = BFD_RELOC_PPC_TPREL16; break; } + + /* For the absolute forms of branches, convert the PC + relative form back into the absolute. */ + if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0) + { + switch (reloc) + { + case BFD_RELOC_PPC_B26: + reloc = BFD_RELOC_PPC_BA26; + break; + case BFD_RELOC_PPC_B16: + reloc = BFD_RELOC_PPC_BA16; + break; + case BFD_RELOC_PPC_B16_BRTAKEN: + reloc = BFD_RELOC_PPC_BA16_BRTAKEN; + break; + case BFD_RELOC_PPC_B16_BRNTAKEN: + reloc = BFD_RELOC_PPC_BA16_BRNTAKEN; + break; + default: + break; + } + } + + if (ppc_obj64 + && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0) + { + switch (reloc) + { + case BFD_RELOC_16: + reloc = BFD_RELOC_PPC64_ADDR16_DS; + break; + case BFD_RELOC_LO16: + reloc = BFD_RELOC_PPC64_ADDR16_LO_DS; + break; + case BFD_RELOC_16_GOTOFF: + reloc = BFD_RELOC_PPC64_GOT16_DS; + break; + case BFD_RELOC_LO16_GOTOFF: + reloc = BFD_RELOC_PPC64_GOT16_LO_DS; + break; + case BFD_RELOC_LO16_PLTOFF: + reloc = BFD_RELOC_PPC64_PLT16_LO_DS; + break; + case BFD_RELOC_16_BASEREL: + reloc = BFD_RELOC_PPC64_SECTOFF_DS; + break; + case BFD_RELOC_LO16_BASEREL: + reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS; + break; + case BFD_RELOC_PPC_TOC16: + reloc = BFD_RELOC_PPC64_TOC16_DS; + break; + case BFD_RELOC_PPC64_TOC16_LO: + reloc = BFD_RELOC_PPC64_TOC16_LO_DS; + break; + case BFD_RELOC_PPC64_PLTGOT16: + reloc = BFD_RELOC_PPC64_PLTGOT16_DS; + break; + case BFD_RELOC_PPC64_PLTGOT16_LO: + reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS; + break; + case BFD_RELOC_PPC_DTPREL16: + reloc = BFD_RELOC_PPC64_DTPREL16_DS; + break; + case BFD_RELOC_PPC_DTPREL16_LO: + reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS; + break; + case BFD_RELOC_PPC_TPREL16: + reloc = BFD_RELOC_PPC64_TPREL16_DS; + break; + case BFD_RELOC_PPC_TPREL16_LO: + reloc = BFD_RELOC_PPC64_TPREL16_LO_DS; + break; + case BFD_RELOC_PPC_GOT_DTPREL16: + case BFD_RELOC_PPC_GOT_DTPREL16_LO: + case BFD_RELOC_PPC_GOT_TPREL16: + case BFD_RELOC_PPC_GOT_TPREL16_LO: + break; + default: + as_bad (_("unsupported relocation for DS offset field")); + break; + } + } } /* We need to generate a fixup for this expression. */ if (fc >= MAX_INSN_FIXUPS) as_fatal (_("too many fixups")); fixups[fc].exp = ex; - fixups[fc].opindex = 0; + fixups[fc].opindex = *opindex_ptr; fixups[fc].reloc = reloc; ++fc; } -#endif /* OBJ_ELF */ - +#else /* OBJ_ELF */ else { /* We need to generate a fixup for this expression. */ @@ -2922,6 +2994,7 @@ md_assemble (char *str) fixups[fc].reloc = BFD_RELOC_UNUSED; ++fc; } +#endif /* OBJ_ELF */ if (need_paren) { @@ -3006,9 +3079,6 @@ md_assemble (char *str) md_apply_fix. */ for (i = 0; i < fc; i++) { - const struct powerpc_operand *operand; - - operand = &powerpc_operands[fixups[i].opindex]; if (fixups[i].reloc != BFD_RELOC_UNUSED) { reloc_howto_type *reloc_howto; @@ -3055,13 +3125,18 @@ md_assemble (char *str) } } else - fix_new_exp (frag_now, - f - frag_now->fr_literal, - 4, - &fixups[i].exp, - (operand->flags & PPC_OPERAND_RELATIVE) != 0, - ((bfd_reloc_code_real_type) - (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); + { + const struct powerpc_operand *operand; + + operand = &powerpc_operands[fixups[i].opindex]; + fix_new_exp (frag_now, + f - frag_now->fr_literal, + 4, + &fixups[i].exp, + (operand->flags & PPC_OPERAND_RELATIVE) != 0, + ((bfd_reloc_code_real_type) + (fixups[i].opindex + (int) BFD_RELOC_UNUSED))); + } } } @@ -6155,6 +6230,8 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) break; case BFD_RELOC_PPC_TLS: + case BFD_RELOC_PPC_TLSGD: + case BFD_RELOC_PPC_TLSLD: break; case BFD_RELOC_PPC_DTPMOD: |