x86: Don't use POSIX character classes in gen-insn-attr-x86.awk

Not all awk implementations (including the default awk in Ubuntu 9.10)
support POSIX character classes.  Since x86-opcode-map.txt is plain
ASCII, we can just use explicit ranges for lower case, alphabetic, and
alphanumeric characters instead.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
LKML-Reference: <adabphy750b.fsf@roland-alpha.cisco.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

diff --git a/arch/x86/tools/gen-insn-attr-x86.awk b/arch/x86/tools/gen-insn-attr-x86.awk
index 7a68506..eaf11f5 100644 (file)
--- a/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/arch/x86/tools/gen-insn-attr-x86.awk
@@ -6,8 +6,6 @@
 
 # Awk implementation sanity check
 function check_awk_implement() {
-       if (!match("abc", "[[:lower:]]+"))
-               return "Your awk doesn't support charactor-class."
        if (sprintf("%x", 0) != "0")
                return "Your awk has a printf-format problem."
        return ""
@@ -44,12 +42,12 @@ BEGIN {
        delete gtable
        delete atable
 
-       opnd_expr = "^[[:alpha:]/]"
+       opnd_expr = "^[A-Za-z/]"
        ext_expr = "^\\("
        sep_expr = "^\\|$"
-       group_expr = "^Grp[[:alnum:]]+"
+       group_expr = "^Grp[0-9A-Za-z]+"
 
-       imm_expr = "^[IJAO][[:lower:]]"
+       imm_expr = "^[IJAO][a-z]"
        imm_flag["Ib"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
        imm_flag["Jb"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
        imm_flag["Iw"] = "INAT_MAKE_IMM(INAT_IMM_WORD)"
@@ -62,7 +60,7 @@ BEGIN {
        imm_flag["Ob"] = "INAT_MOFFSET"
        imm_flag["Ov"] = "INAT_MOFFSET"
 
-       modrm_expr = "^([CDEGMNPQRSUVW/][[:lower:]]+|NTA|T[012])"
+       modrm_expr = "^([CDEGMNPQRSUVW/][a-z]+|NTA|T[012])"
        force64_expr = "\\([df]64\\)"
        rex_expr = "^REX(\\.[XRWB]+)*"
        fpu_expr = "^ESC" # TODO