diff options
| author | Hu, Lin1 <lin1.hu@intel.com> | 2023-12-28 01:06:41 +0000 |
|---|---|---|
| committer | Cui, Lili <lili.cui@intel.com> | 2023-12-28 11:52:52 +0000 |
| commit | cca90632f83d47bc7f913e098c4531e52327d272 (patch) | |
| tree | 396e22ac57cf10de0988dab1da54d40563ba9101 /opcodes | |
| parent | 6967f19dcd3d2794976b2a193a0c30b626c92c3b (diff) | |
| download | gdb-cca90632f83d47bc7f913e098c4531e52327d272.zip gdb-cca90632f83d47bc7f913e098c4531e52327d272.tar.gz gdb-cca90632f83d47bc7f913e098c4531e52327d272.tar.bz2 | |
Support APX JMPABS for disassembler
gas/ChangeLog:
* testsuite/gas/i386/x86-64.exp: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs-intel.d: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs-inval.d: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs-inval.s: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs.d: Ditto.
* testsuite/gas/i386/x86-64-apx-jmpabs.s: Ditto.
opcodes/ChangeLog:
* i386-dis.c (JMPABS_Fixup): New Fixup function to disassemble jmpabs.
(print_insn): Add #UD exception for jmpabs.
(dis386): Modify a1 unit for support jmpabs.
* i386-mnem.h: Regenerated.
* i386-opc.tbl: New insns.
* i386-tbl.h: Regenerated.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/i386-dis.c | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index bfb9493..6f5ff5c 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -106,6 +106,7 @@ static bool MOVSXD_Fixup (instr_info *, int, int); static bool DistinctDest_Fixup (instr_info *, int, int); static bool PREFETCHI_Fixup (instr_info *, int, int); static bool PUSH2_POP2_Fixup (instr_info *, int, int); +static bool JMPABS_Fixup (instr_info *, int, int); static void ATTRIBUTE_PRINTF_3 i386_dis_printf (const disassemble_info *, enum disassembler_style, @@ -2018,7 +2019,7 @@ static const struct dis386 dis386[] = { { "lahf", { XX }, 0 }, /* a0 */ { "mov%LB", { AL, Ob }, PREFIX_REX2_ILLEGAL }, - { "mov%LS", { eAX, Ov }, PREFIX_REX2_ILLEGAL }, + { "mov%LS", { { JMPABS_Fixup, eAX_reg }, { JMPABS_Fixup, v_mode } }, PREFIX_REX2_ILLEGAL }, { "mov%LB", { Ob, AL }, PREFIX_REX2_ILLEGAL }, { "mov%LS", { Ov, eAX }, PREFIX_REX2_ILLEGAL }, { "movs{b|}", { Ybr, Xb }, PREFIX_REX2_ILLEGAL }, @@ -9699,7 +9700,7 @@ print_insn (bfd_vma pc, disassemble_info *info, int intel_syntax) } if ((dp->prefix_requirement & PREFIX_REX2_ILLEGAL) - && ins.last_rex2_prefix >= 0) + && ins.last_rex2_prefix >= 0 && (ins.rex2 & REX2_SPECIAL) == 0) { i386_dis_printf (info, dis_style_text, "(bad)"); ret = ins.end_codep - priv.the_buffer; @@ -13942,3 +13943,35 @@ PUSH2_POP2_Fixup (instr_info *ins, int bytemode, int sizeflag) return OP_VEX (ins, bytemode, sizeflag); } + +static bool +JMPABS_Fixup (instr_info *ins, int bytemode, int sizeflag) +{ + if (ins->last_rex2_prefix >= 0) + { + uint64_t op; + + if ((ins->prefixes & (PREFIX_OPCODE | PREFIX_ADDR | PREFIX_LOCK)) != 0x0 + || (ins->rex & REX_W) != 0x0) + { + oappend (ins, "(bad)"); + return true; + } + + if (bytemode == eAX_reg) + return true; + + if (!get64 (ins, &op)) + return false; + + ins->mnemonicendp = stpcpy (ins->obuf, "jmpabs"); + ins->rex2 |= REX2_SPECIAL; + oappend_immediate (ins, op); + + return true; + } + + if (bytemode == eAX_reg) + return OP_IMREG (ins, bytemode, sizeflag); + return OP_OFF64 (ins, bytemode, sizeflag); +} |