linux-kernel - [PATCH 47/47] objtool: Ignore intentional differences for the x86 insn decoder

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Date:   Sun,  1 Sep 2019 09:23:26 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>
Subject: [PATCH 47/47] objtool: Ignore intentional differences for the x86 insn decoder

From: Arnaldo Carvalho de Melo <acme@...hat.com>

Since we need to build this in !x86, we need to explicitely use the x86
files, not things like asm/insn.h, so we intentionally differ from the
master copy in the kernel sources, add -I diff directives to ignore just
these differences when checking for drift.

Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>
Link: http://lore.kernel.org/lkml/20190830193109.p7jagidsrahoa4pn@treble
Acked-by: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lkml.kernel.org/n/tip-j965m9b7xtdc83em3twfkh9o@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/objtool/sync-check.sh | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/objtool/sync-check.sh b/tools/objtool/sync-check.sh
index 6fa87de1c765..0a832e265a50 100755
--- a/tools/objtool/sync-check.sh
+++ b/tools/objtool/sync-check.sh
@@ -2,12 +2,8 @@
 # SPDX-License-Identifier: GPL-2.0
 
 FILES='
-arch/x86/include/asm/inat.h
 arch/x86/include/asm/inat_types.h
-arch/x86/include/asm/insn.h
 arch/x86/include/asm/orc_types.h
-arch/x86/lib/inat.c
-arch/x86/lib/insn.c
 arch/x86/lib/x86-opcode-map.txt
 arch/x86/tools/gen-insn-attr-x86.awk
 '
@@ -47,4 +43,9 @@ for i in $FILES; do
   check $i
 done
 
+check arch/x86/include/asm/inat.h     '-I "^#include [\"<]\(asm/\)*inat_types.h[\">]"'
+check arch/x86/include/asm/insn.h     '-I "^#include [\"<]\(asm/\)*inat.h[\">]"'
+check arch/x86/lib/inat.c             '-I "^#include [\"<]\(../include/\)*asm/insn.h[\">]"'
+check arch/x86/lib/insn.c             '-I "^#include [\"<]\(../include/\)*asm/in\(at\|sn\).h[\">]"'
+
 cd -
-- 
2.21.0