470de0f39e
We copy headers from include/, arch/ to allow tools/ use defines, structs from newer kernels and still be able to build on older systems. We then, as part of a build, check if those copies got out of sync, when we emit a warning, so that we can check if something needs to be reflected on the tools, e.g. a 'perf trace' syscall argument beautifier needs tweaking. But we don't have to be super strict with that, for instance, extra spaces, tabs or blank lines aren't problematic, so change check-headers.sh to have "--ignore-blank-lines --ignore-space-change" as default "diff" arguments. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-d8emqpdc3m2qtzt1ei8ra2tf@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
65 lines
1.9 KiB
Bash
Executable File
65 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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HEADERS='
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include/uapi/linux/fcntl.h
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include/uapi/linux/perf_event.h
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include/uapi/linux/sched.h
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include/uapi/linux/stat.h
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include/linux/hash.h
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include/uapi/linux/hw_breakpoint.h
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arch/x86/include/asm/disabled-features.h
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arch/x86/include/asm/required-features.h
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arch/x86/include/asm/cpufeatures.h
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arch/arm/include/uapi/asm/perf_regs.h
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arch/arm64/include/uapi/asm/perf_regs.h
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arch/powerpc/include/uapi/asm/perf_regs.h
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arch/x86/include/uapi/asm/perf_regs.h
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arch/x86/include/uapi/asm/kvm.h
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arch/x86/include/uapi/asm/kvm_perf.h
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arch/x86/include/uapi/asm/svm.h
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arch/x86/include/uapi/asm/unistd.h
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arch/x86/include/uapi/asm/vmx.h
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arch/powerpc/include/uapi/asm/kvm.h
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arch/s390/include/uapi/asm/kvm.h
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arch/s390/include/uapi/asm/kvm_perf.h
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arch/s390/include/uapi/asm/sie.h
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arch/arm/include/uapi/asm/kvm.h
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arch/arm64/include/uapi/asm/kvm.h
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include/asm-generic/bitops/arch_hweight.h
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include/asm-generic/bitops/const_hweight.h
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include/asm-generic/bitops/__fls.h
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include/asm-generic/bitops/fls.h
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include/asm-generic/bitops/fls64.h
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include/linux/coresight-pmu.h
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include/uapi/asm-generic/ioctls.h
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include/uapi/asm-generic/mman-common.h
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'
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check () {
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file=$1
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opts="--ignore-blank-lines --ignore-space-change"
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shift
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while [ -n "$*" ]; do
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opts="$opts \"$1\""
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shift
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done
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cmd="diff $opts ../$file ../../$file > /dev/null"
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test -f ../../$file &&
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eval $cmd || echo "Warning: Kernel ABI header at 'tools/$file' differs from latest version at '$file'" >&2
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}
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# simple diff check
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for i in $HEADERS; do
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check $i -B
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done
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# diff with extra ignore lines
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check arch/x86/lib/memcpy_64.S -I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>"
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check arch/x86/lib/memset_64.S -I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>"
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check include/uapi/asm-generic/mman.h -I "^#include <\(uapi/\)*asm-generic/mman-common.h>"
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check include/uapi/linux/mman.h -I "^#include <\(uapi/\)*asm/mman.h>"
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