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Message-Id: <20191127203134.338035756@linuxfoundation.org>
Date: Wed, 27 Nov 2019 21:31:57 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, kbuild test robot <lkp@...el.com>,
Alexander Kapshuk <alexander.kapshuk@...il.com>,
Borislav Petkov <bp@...e.de>,
Masami Hiramatsu <mhiramat@...nel.org>,
"H. Peter Anvin" <hpa@...or.com>,
"Peter Zijlstra (Intel)" <peterz@...radead.org>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Ingo Molnar <mingo@...hat.com>,
Josh Poimboeuf <jpoimboe@...hat.com>,
Thomas Gleixner <tglx@...utronix.de>, x86-ml <x86@...nel.org>
Subject: [PATCH 4.19 267/306] x86/insn: Fix awk regexp warnings
From: Alexander Kapshuk <alexander.kapshuk@...il.com>
commit 700c1018b86d0d4b3f1f2d459708c0cdf42b521d upstream.
gawk 5.0.1 generates the following regexp warnings:
GEN /home/sasha/torvalds/tools/objtool/arch/x86/lib/inat-tables.c
awk: ../arch/x86/tools/gen-insn-attr-x86.awk:260: warning: regexp escape sequence `\:' is not a known regexp operator
awk: ../arch/x86/tools/gen-insn-attr-x86.awk:350: (FILENAME=../arch/x86/lib/x86-opcode-map.txt FNR=41) warning: regexp escape sequence `\&' is not a known regexp operator
Ealier versions of gawk are not known to generate these warnings. The
gawk manual referenced below does not list characters ':' and '&' as
needing escaping, so 'unescape' them. See
https://www.gnu.org/software/gawk/manual/html_node/Escape-Sequences.html
for more info.
Running diff on the output generated by the script before and after
applying the patch reported no differences.
[ bp: Massage commit message. ]
[ Caught the respective tools header discrepancy. ]
Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Alexander Kapshuk <alexander.kapshuk@...il.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Acked-by: Masami Hiramatsu <mhiramat@...nel.org>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: "Peter Zijlstra (Intel)" <peterz@...radead.org>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Josh Poimboeuf <jpoimboe@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: x86-ml <x86@...nel.org>
Link: https://lkml.kernel.org/r/20190924044659.3785-1-alexander.kapshuk@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
arch/x86/tools/gen-insn-attr-x86.awk | 4 ++--
tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
--- a/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/arch/x86/tools/gen-insn-attr-x86.awk
@@ -69,7 +69,7 @@ BEGIN {
lprefix1_expr = "\\((66|!F3)\\)"
lprefix2_expr = "\\(F3\\)"
- lprefix3_expr = "\\((F2|!F3|66\\&F2)\\)"
+ lprefix3_expr = "\\((F2|!F3|66&F2)\\)"
lprefix_expr = "\\((66|F2|F3)\\)"
max_lprefix = 4
@@ -257,7 +257,7 @@ function convert_operands(count,opnd,
return add_flags(imm, mod)
}
-/^[0-9a-f]+\:/ {
+/^[0-9a-f]+:/ {
if (NR == 1)
next
# get index
--- a/tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk
@@ -69,7 +69,7 @@ BEGIN {
lprefix1_expr = "\\((66|!F3)\\)"
lprefix2_expr = "\\(F3\\)"
- lprefix3_expr = "\\((F2|!F3|66\\&F2)\\)"
+ lprefix3_expr = "\\((F2|!F3|66&F2)\\)"
lprefix_expr = "\\((66|F2|F3)\\)"
max_lprefix = 4
@@ -257,7 +257,7 @@ function convert_operands(count,opnd,
return add_flags(imm, mod)
}
-/^[0-9a-f]+\:/ {
+/^[0-9a-f]+:/ {
if (NR == 1)
next
# get index
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