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x86: Check awk features before generating inat-tables.c

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Check some awk mandatory features to generate inat-tables.c
that old mawk doesn't support.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Przemysław Pawełczyk <przemyslaw@pawelczyk.it>
Cc: Roland McGrath <roland@redhat.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
LKML-Reference: <20090821194316.12478.57394.stgit@localhost.localdomain>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Masami Hiramatsu 2009-08-21 15:43:16 -04:00 committed by Frederic Weisbecker
parent 8d7d14fb27
commit 69d991f321
1 changed files with 20 additions and 0 deletions
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20
arch/x86/tools/gen-insn-attr-x86.awk
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@ -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]" \