diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2010-10-14 13:31:13 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2010-10-14 13:31:13 +0000 |
| commit | f8a5c266971d7b5b96f973805551c6e88669cada (patch) | |
| tree | e8ffd91e8e6a02b3cb06ef44dfee189d2bef72dd /gas/config | |
| parent | 5d3236eea075e471b90b4d89bc459645abe9f50c (diff) | |
| download | gdb-f8a5c266971d7b5b96f973805551c6e88669cada.zip gdb-f8a5c266971d7b5b96f973805551c6e88669cada.tar.gz gdb-f8a5c266971d7b5b96f973805551c6e88669cada.tar.bz2 | |
Add .d32 encoding suffix.
gas/
2010-10-14 H.J. Lu <hongjiu.lu@intel.com>
* config/tc-i386.c (_i386_insn): Add disp32_encoding.
(md_assemble): Don't call optimize_disp if disp32_encoding is
set.
(parse_insn): Support .d32 to force 32bit displacement.
(output_branch): Use BIG if disp32_encoding is set.
* doc/c-i386.texi: Document .d32 encoding suffix.
gas/testsuite/
2010-10-14 H.J. Lu <hongjiu.lu@intel.com>
* gas/i386/disp32.d: New.
* gas/i386/disp32.s: Likewise.
* gas/i386/x86-64-disp32.d: Likewise.
* gas/i386/x86-64-disp32.s: Likewise.
* gas/i386/i386.exp: Run disp32 and x86-64-disp32.
Diffstat (limited to 'gas/config')
| -rw-r--r-- | gas/config/tc-i386.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index cc08efb..ff6061b 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -277,6 +277,9 @@ struct _i386_insn /* Swap operand in encoding. */ unsigned int swap_operand; + /* Force 32bit displacement in encoding. */ + unsigned int disp32_encoding; + /* Error message. */ enum i386_error error; }; @@ -2982,6 +2985,7 @@ md_assemble (char *line) /* Don't optimize displacement for movabs since it only takes 64bit displacement. */ if (i.disp_operands + && !i.disp32_encoding && (flag_code != CODE_64BIT || strcmp (mnemonic, "movabs") != 0)) optimize_disp (); @@ -3256,9 +3260,15 @@ parse_insn (char *line, char *mnemonic) if (!current_templates) { - /* Check if we should swap operand in encoding. */ + /* Check if we should swap operand or force 32bit displacement in + encoding. */ if (mnem_p - 2 == dot_p && dot_p[1] == 's') i.swap_operand = 1; + else if (mnem_p - 4 == dot_p + && dot_p[1] == 'd' + && dot_p[2] == '3' + && dot_p[3] == '2') + i.disp32_encoding = 1; else goto check_suffix; mnem_p = dot_p; @@ -5691,15 +5701,15 @@ static void output_branch (void) { char *p; + int size; int code16; int prefix; relax_substateT subtype; symbolS *sym; offsetT off; - code16 = 0; - if (flag_code == CODE_16BIT) - code16 = CODE16; + code16 = flag_code == CODE_16BIT ? CODE16 : 0; + size = i.disp32_encoding ? BIG : SMALL; prefix = 0; if (i.prefix[DATA_PREFIX] != 0) @@ -5742,11 +5752,11 @@ output_branch (void) *p = i.tm.base_opcode; if ((unsigned char) *p == JUMP_PC_RELATIVE) - subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, SMALL); + subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, size); else if (cpu_arch_flags.bitfield.cpui386) - subtype = ENCODE_RELAX_STATE (COND_JUMP, SMALL); + subtype = ENCODE_RELAX_STATE (COND_JUMP, size); else - subtype = ENCODE_RELAX_STATE (COND_JUMP86, SMALL); + subtype = ENCODE_RELAX_STATE (COND_JUMP86, size); subtype |= code16; sym = i.op[0].disps->X_add_symbol; |