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-rw-r--r--arch/x86/tools/gen-insn-attr-x86.awk15
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/x86/tools/gen-insn-attr-x86.awk b/arch/x86/tools/gen-insn-attr-x86.awk
index af38469afd..5770c8097f 100644
--- a/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/arch/x86/tools/gen-insn-attr-x86.awk
@@ -64,7 +64,9 @@ BEGIN {
modrm_expr = "^([CDEGMNPQRSUVW/][a-z]+|NTA|T[012])"
force64_expr = "\\([df]64\\)"
- rex_expr = "^REX(\\.[XRWB]+)*"
+ rex_expr = "^((REX(\\.[XRWB]+)+)|(REX$))"
+ rex2_expr = "\\(REX2\\)"
+ no_rex2_expr = "\\(!REX2\\)"
fpu_expr = "^ESC" # TODO
lprefix1_expr = "\\((66|!F3)\\)"
@@ -81,6 +83,8 @@ BEGIN {
vexonly_expr = "\\(v\\)"
# All opcodes with (ev) superscript supports *only* EVEX prefix
evexonly_expr = "\\(ev\\)"
+ # (es) is the same as (ev) but also "SCALABLE" i.e. W and pp determine operand size
+ evex_scalable_expr = "\\(es\\)"
prefix_expr = "\\(Prefix\\)"
prefix_num["Operand-Size"] = "INAT_PFX_OPNDSZ"
@@ -99,6 +103,7 @@ BEGIN {
prefix_num["VEX+1byte"] = "INAT_PFX_VEX2"
prefix_num["VEX+2byte"] = "INAT_PFX_VEX3"
prefix_num["EVEX"] = "INAT_PFX_EVEX"
+ prefix_num["REX2"] = "INAT_PFX_REX2"
clear_vars()
}
@@ -314,6 +319,10 @@ function convert_operands(count,opnd, i,j,imm,mod)
if (match(ext, force64_expr))
flags = add_flags(flags, "INAT_FORCE64")
+ # check REX2 not allowed
+ if (match(ext, no_rex2_expr))
+ flags = add_flags(flags, "INAT_NO_REX2")
+
# check REX prefix
if (match(opcode, rex_expr))
flags = add_flags(flags, "INAT_MAKE_PREFIX(INAT_PFX_REX)")
@@ -325,6 +334,8 @@ function convert_operands(count,opnd, i,j,imm,mod)
# check VEX codes
if (match(ext, evexonly_expr))
flags = add_flags(flags, "INAT_VEXOK | INAT_EVEXONLY")
+ else if (match(ext, evex_scalable_expr))
+ flags = add_flags(flags, "INAT_VEXOK | INAT_EVEXONLY | INAT_EVEX_SCALABLE")
else if (match(ext, vexonly_expr))
flags = add_flags(flags, "INAT_VEXOK | INAT_VEXONLY")
else if (match(ext, vexok_expr) || match(opcode, vexok_opcode_expr))
@@ -351,6 +362,8 @@ function convert_operands(count,opnd, i,j,imm,mod)
lptable3[idx] = add_flags(lptable3[idx],flags)
variant = "INAT_VARIANT"
}
+ if (match(ext, rex2_expr))
+ table[idx] = add_flags(table[idx], "INAT_REX2_VARIANT")
if (!match(ext, lprefix_expr)){
table[idx] = add_flags(table[idx],flags)
}