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linux-next/tools/objtool/sync-check.sh
Ingo Molnar b1f480bc06 Merge branch 'x86/cpu' into WIP.x86/core, to merge the NOP changes & resolve a semantic conflict
Conflict-merge this main commit in essence:

  a89dfde3dc: ("x86: Remove dynamic NOP selection")

With this upstream commit:

  b908297047: ("bpf: Use NOP_ATOMIC5 instead of emit_nops(&prog, 5) for BPF_TRAMP_F_CALL_ORIG")

Semantic merge conflict:

  arch/x86/net/bpf_jit_comp.c

  - memcpy(prog, ideal_nops[NOP_ATOMIC5], X86_PATCH_SIZE);
  + memcpy(prog, x86_nops[5], X86_PATCH_SIZE);

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2021-04-02 12:36:30 +02:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
if [ -z "$SRCARCH" ]; then
echo 'sync-check.sh: error: missing $SRCARCH environment variable' >&2
exit 1
fi
FILES="include/linux/objtool.h"
if [ "$SRCARCH" = "x86" ]; then
FILES="$FILES
arch/x86/include/asm/nops.h
arch/x86/include/asm/inat_types.h
arch/x86/include/asm/orc_types.h
arch/x86/include/asm/emulate_prefix.h
arch/x86/lib/x86-opcode-map.txt
arch/x86/tools/gen-insn-attr-x86.awk
include/linux/static_call_types.h
"
SYNC_CHECK_FILES='
arch/x86/include/asm/inat.h
arch/x86/include/asm/insn.h
arch/x86/lib/inat.c
arch/x86/lib/insn.c
'
fi
check_2 () {
file1=$1
file2=$2
shift
shift
cmd="diff $* $file1 $file2 > /dev/null"
test -f $file2 && {
eval $cmd || {
echo "Warning: Kernel ABI header at '$file1' differs from latest version at '$file2'" >&2
echo diff -u $file1 $file2
}
}
}
check () {
file=$1
shift
check_2 tools/$file $file $*
}
if [ ! -d ../../kernel ] || [ ! -d ../../tools ] || [ ! -d ../objtool ]; then
exit 0
fi
cd ../..
while read -r file_entry; do
if [ -z "$file_entry" ]; then
continue
fi
check $file_entry
done <<EOF
$FILES
EOF
if [ "$SRCARCH" = "x86" ]; then
for i in $SYNC_CHECK_FILES; do
check $i '-I "^.*\/\*.*__ignore_sync_check__.*\*\/.*$"'
done
fi