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From: Masami H. <mhi...@re...> - 2009-08-21 19:41:20
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Check some awk features which old mawk doesn't support.
Signed-off-by: Masami Hiramatsu <mhi...@re...>
Cc: Jim Keniston <jke...@us...>
Cc: H. Peter Anvin <hp...@zy...>
Cc: Ananth N Mavinakayanahalli <an...@in...>
Cc: Avi Kivity <av...@re...>
Cc: Andi Kleen <ak...@li...>
Cc: Christoph Hellwig <hc...@in...>
Cc: Frank Ch. Eigler <fc...@re...>
Cc: Frederic Weisbecker <fwe...@gm...>
Cc: Ingo Molnar <mi...@el...>
Cc: Jason Baron <jb...@re...>
Cc: K.Prasad <pr...@li...>
Cc: Lai Jiangshan <la...@cn...>
Cc: Li Zefan <li...@cn...>
Cc: Przemysław Pawełczyk <prz...@pa...>
Cc: Roland McGrath <ro...@re...>
Cc: Sam Ravnborg <sa...@ra...>
Cc: Srikar Dronamraju <sr...@li...>
Cc: Steven Rostedt <ro...@go...>
Cc: Tom Zanussi <tza...@gm...>
Cc: Vegard Nossum <veg...@gm...>
---
arch/x86/tools/gen-insn-attr-x86.awk | 20 ++++++++++++++++++++
1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/arch/x86/tools/gen-insn-attr-x86.awk b/arch/x86/tools/gen-insn-attr-x86.awk
index 93b62c9..19ba096 100644
--- a/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/arch/x86/tools/gen-insn-attr-x86.awk
@@ -4,7 +4,25 @@
#
# Usage: awk -f gen-insn-attr-x86.awk x86-opcode-map.txt > inat-tables.c
+# 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 ""
+}
+
BEGIN {
+ # Implementation error checking
+ awkchecked = check_awk_implement()
+ if (awkchecked != "") {
+ print "Error: " awkchecked > "/dev/stderr"
+ print "Please try to use gawk." > "/dev/stderr"
+ exit 1
+ }
+
+ # Setup generating tables
print "/* x86 opcode map generated from x86-opcode-map.txt */"
print "/* Do not change this code. */"
ggid = 1
@@ -293,6 +311,8 @@ function convert_operands(opnd, i,imm,mod)
}
END {
+ if (awkchecked != "")
+ exit 1
# print escape opcode map's array
print "/* Escape opcode map array */"
print "const insn_attr_t const *inat_escape_tables[INAT_ESC_MAX + 1]" \
--
Masami Hiramatsu
Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division
e-mail: mhi...@re...
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