4.14-stable review patch. If anyone has any objections, please let me know.
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From: Josh Poimboeuf jpoimboe@redhat.com
commit 3bd51c5a371de917e4e7401c9df006b5998579df upstream.
Replace the nasty diff checks in the objtool Makefile with a clean bash script, and make the warnings more specific.
Heavily inspired by tools/perf/check-headers.sh.
Suggested-by: Ingo Molnar mingo@kernel.org Signed-off-by: Josh Poimboeuf jpoimboe@redhat.com Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Link: http://lkml.kernel.org/r/ab015f15ccd8c0c6008493c3c6ee3d495eaf2927.1509974346... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- tools/objtool/Makefile | 16 +--------------- tools/objtool/sync-check.sh | 29 +++++++++++++++++++++++++++++ 2 files changed, 30 insertions(+), 15 deletions(-)
--- a/tools/objtool/Makefile +++ b/tools/objtool/Makefile @@ -43,22 +43,8 @@ include $(srctree)/tools/build/Makefile. $(OBJTOOL_IN): fixdep FORCE @$(MAKE) $(build)=objtool
-# Busybox's diff doesn't have -I, avoid warning in that case -# $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) - @(diff -I 2>&1 | grep -q 'option requires an argument' && \ - test -d ../../kernel -a -d ../../tools -a -d ../objtool && (( \ - diff arch/x86/lib/insn.c ../../arch/x86/lib/insn.c >/dev/null && \ - diff arch/x86/lib/inat.c ../../arch/x86/lib/inat.c >/dev/null && \ - diff arch/x86/lib/x86-opcode-map.txt ../../arch/x86/lib/x86-opcode-map.txt >/dev/null && \ - diff arch/x86/tools/gen-insn-attr-x86.awk ../../arch/x86/tools/gen-insn-attr-x86.awk >/dev/null && \ - diff arch/x86/include/asm/insn.h ../../arch/x86/include/asm/insn.h >/dev/null && \ - diff arch/x86/include/asm/inat.h ../../arch/x86/include/asm/inat.h >/dev/null && \ - diff arch/x86/include/asm/inat_types.h ../../arch/x86/include/asm/inat_types.h >/dev/null) \ - || echo "warning: objtool: x86 instruction decoder differs from kernel" >&2 )) || true - @(test -d ../../kernel -a -d ../../tools -a -d ../objtool && (( \ - diff ../../arch/x86/include/asm/orc_types.h arch/x86/include/asm/orc_types.h >/dev/null) \ - || echo "warning: objtool: orc_types.h differs from kernel" >&2 )) || true + @./sync-check.sh $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@
diff --git a/tools/objtool/sync-check.sh b/tools/objtool/sync-check.sh new file mode 100755 --- /dev/null +++ b/tools/objtool/sync-check.sh @@ -0,0 +1,29 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 + +FILES=' +arch/x86/lib/insn.c +arch/x86/lib/inat.c +arch/x86/lib/x86-opcode-map.txt +arch/x86/tools/gen-insn-attr-x86.awk +arch/x86/include/asm/insn.h +arch/x86/include/asm/inat.h +arch/x86/include/asm/inat_types.h +arch/x86/include/asm/orc_types.h +' + +check() +{ + local file=$1 + + diff $file ../../$file > /dev/null || + echo "Warning: synced file at 'tools/objtool/$file' differs from latest kernel version at '$file'" +} + +if [ ! -d ../../kernel ] || [ ! -d ../../tools ] || [ ! -d ../objtool ]; then + exit 0 +fi + +for i in $FILES; do + check $i +done