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| author | Jan Beulich <jbeulich@novell.com> | 2018-03-22 08:32:50 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2018-03-22 08:32:50 +0100 |
| commit | 9f79e88693dae859f838bcf684158e6e6f8f3b6b (patch) | |
| tree | 78014df9e0e5b90c93563718f7b920308bfe5b78 /opcodes/i386-dis.c | |
| parent | d6793fa1acf384a93c83db6eb916e3b9eedd9ef4 (diff) | |
| download | gdb-9f79e88693dae859f838bcf684158e6e6f8f3b6b.zip gdb-9f79e88693dae859f838bcf684158e6e6f8f3b6b.tar.gz gdb-9f79e88693dae859f838bcf684158e6e6f8f3b6b.tar.bz2 | |
x86: fix swapped operand handling for BNDMOV
The wrong placement of the Load attribute in the templates prevented
this from working. The disassembler also didn't handle this consistently
with other similar dual-encoding insns.
Diffstat (limited to 'opcodes/i386-dis.c')
| -rw-r--r-- | opcodes/i386-dis.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index be2fd8a..d8a6db3 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -248,6 +248,7 @@ fetch_data (struct disassemble_info *info, bfd_byte *addr) #define Eb { OP_E, b_mode } #define Ebnd { OP_E, bnd_mode } #define EbS { OP_E, b_swap_mode } +#define EbndS { OP_E, bnd_swap_mode } #define Ev { OP_E, v_mode } #define Ev_bnd { OP_E, v_bnd_mode } #define EvS { OP_E, v_swap_mode } @@ -560,7 +561,10 @@ enum dq_mode, /* registers like dq_mode, memory like w_mode. */ dqw_mode, + /* bounds operand */ bnd_mode, + /* bounds operand with operand swapped */ + bnd_swap_mode, /* 4- or 6-byte pointer operand */ f_mode, const_1_mode, @@ -3890,7 +3894,7 @@ static const struct dis386 prefix_table[][4] = { { { MOD_TABLE (MOD_0F1B_PREFIX_0) }, { MOD_TABLE (MOD_0F1B_PREFIX_1) }, - { "bndmov", { Ebnd, Gbnd }, 0 }, + { "bndmov", { EbndS, Gbnd }, 0 }, { "bndcn", { Gbnd, Ev_bnd }, 0 }, }, @@ -15047,6 +15051,7 @@ OP_E_register (int bytemode, int sizeflag) if ((sizeflag & SUFFIX_ALWAYS) && (bytemode == b_swap_mode + || bytemode == bnd_swap_mode || bytemode == v_swap_mode)) swap_operand (); @@ -15076,6 +15081,7 @@ OP_E_register (int bytemode, int sizeflag) names = address_mode == mode_64bit ? names64 : names32; break; case bnd_mode: + case bnd_swap_mode: if (reg > 0x3) { oappend ("(bad)"); @@ -15272,7 +15278,8 @@ OP_E_memory (int bytemode, int sizeflag) int scale = 0; int addr32flag = !((sizeflag & AFLAG) || bytemode == v_bnd_mode - || bytemode == bnd_mode); + || bytemode == bnd_mode + || bytemode == bnd_swap_mode); const char **indexes64 = names64; const char **indexes32 = names32; @@ -15389,7 +15396,8 @@ OP_E_memory (int bytemode, int sizeflag) if ((havebase || haveindex || riprel) && (bytemode != v_bnd_mode) - && (bytemode != bnd_mode)) + && (bytemode != bnd_mode) + && (bytemode != bnd_swap_mode)) used_prefixes |= PREFIX_ADDR; if (havedisp || (intel_syntax && riprel)) |