diff options
| -rw-r--r-- | gas/config/tc-i386.c | 67 |
1 files changed, 35 insertions, 32 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index 7ef2b2856d5..1a8af658f5d 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -5166,14 +5166,30 @@ md_assemble (char *line) return; } - /* Check for data size prefix on VEX/XOP/EVEX encoded and SIMD insns. */ - if (i.prefix[DATA_PREFIX] - && (is_any_vex_encoding (&i.tm) - || i.tm.operand_types[i.imm_operands].bitfield.class >= RegMMX - || i.tm.operand_types[i.imm_operands + 1].bitfield.class >= RegMMX)) + if (is_any_vex_encoding (&i.tm) + || i.tm.operand_types[i.imm_operands].bitfield.class >= RegMMX + || i.tm.operand_types[i.imm_operands + 1].bitfield.class >= RegMMX) { - as_bad (_("data size prefix invalid with `%s'"), i.tm.name); - return; + /* Check for data size prefix on VEX/XOP/EVEX encoded and SIMD insns. */ + if (i.prefix[DATA_PREFIX]) + { + as_bad (_("data size prefix invalid with `%s'"), i.tm.name); + return; + } + + /* Don't allow e.g. KMOV in TLS code sequences. */ + for (j = i.imm_operands; j < i.operands; ++j) + switch (i.reloc[j]) + { + case BFD_RELOC_386_TLS_GOTIE: + case BFD_RELOC_386_TLS_LE_32: + case BFD_RELOC_X86_64_GOTTPOFF: + case BFD_RELOC_X86_64_TLSLD: + as_bad (_("TLS relocation cannot be used with `%s'"), i.tm.name); + return; + default: + break; + } } /* Check if HLE prefix is OK. */ @@ -6827,26 +6843,6 @@ match_template (char mnem_suffix) } } - switch (i.reloc[0]) - { - case BFD_RELOC_386_GOT32: - /* Force 0x8b encoding for "mov foo@GOT, %eax". */ - if (t->base_opcode == 0xa0 - && t->opcode_modifier.opcodespace == SPACE_BASE) - continue; - break; - case BFD_RELOC_386_TLS_GOTIE: - case BFD_RELOC_386_TLS_LE_32: - case BFD_RELOC_X86_64_GOTTPOFF: - case BFD_RELOC_X86_64_TLSLD: - /* Don't allow KMOV in TLS code sequences. */ - if (t->opcode_modifier.vex) - continue; - break; - default: - break; - } - /* We check register size if needed. */ if (t->opcode_modifier.checkregsize) { @@ -6876,12 +6872,19 @@ match_template (char mnem_suffix) && i.types[0].bitfield.dword && i.types[1].bitfield.instance == Accum) continue; - /* xrelease mov %eax, <disp> is another special case. It must not - match the accumulator-only encoding of mov. */ - if (i.hle_prefix - && t->base_opcode == 0xa0 + + if (t->base_opcode == MOV_AX_DISP32 && t->opcode_modifier.opcodespace == SPACE_BASE) - continue; + { + /* Force 0x8b encoding for "mov foo@GOT, %eax". */ + if (i.reloc[0] == BFD_RELOC_386_GOT32) + continue; + + /* xrelease mov %eax, <disp> is another special case. It must not + match the accumulator-only encoding of mov. */ + if (i.hle_prefix) + continue; + } /* Fall through. */ case 3: |