forked from Minki/linux
c13009c1ef
The bpf-script-test-kbuild.c script, used in one of the LLVM subtests, includes ptrace.h unnecessarily, and that ends up making it include a header that uses asm(_ASM_SP), a feature that is not supported by clang <= 4.0, breaking that 'perf test' entry. This ended up leading to theca26cffa4e("x86/asm: Allow again using asm.h when building for the 'bpf' clang target"), adding an ifndef __BPF__ to the arch/x86/include/asm/asm.h file. Newer clang versions accept that asm(_ASM_SP) construct, so just remove the ptrace.h include, which paves the way for revertingca26cffa4e("x86/asm: Allow again using asm.h when building for the 'bpf' clang target"). Suggested-by: Yonghong Song <yhs@fb.com> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lkml.kernel.org/r/613f0a0d-c433-8f4d-dcc1-c9889deae39e@fb.com Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Potapenko <glider@google.com> Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David Ahern <dsahern@gmail.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Matthias Kaehlcke <mka@chromium.org> Cc: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wang Nan <wangnan0@huawei.com> Link: https://lkml.kernel.org/n/tip-clbcnzbakdp18ibme4wt43ib@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
21 lines
500 B
C
21 lines
500 B
C
/*
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* bpf-script-test-kbuild.c
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* Test include from kernel header
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*/
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#ifndef LINUX_VERSION_CODE
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# error Need LINUX_VERSION_CODE
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# error Example: for 4.2 kernel, put 'clang-opt="-DLINUX_VERSION_CODE=0x40200" into llvm section of ~/.perfconfig'
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#endif
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#define SEC(NAME) __attribute__((section(NAME), used))
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#include <uapi/linux/fs.h>
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SEC("func=vfs_llseek")
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int bpf_func__vfs_llseek(void *ctx)
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{
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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int _version SEC("version") = LINUX_VERSION_CODE;
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