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| author | Ingo Molnar <mingo@kernel.org> | 2016-03-09 10:40:01 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-03-09 10:40:01 +0100 |
| commit | 3a99e6db539e53cc9c79282e80f8362b0cb96ac8 (patch) | |
| tree | 1a4ce932a296841833c29a7ab66dd8e3553dffe9 | |
| parent | 7a8698058ae493ae53b1a8a2fa23d2e37000d73e (diff) | |
| download | lwn-3a99e6db539e53cc9c79282e80f8362b0cb96ac8.tar.gz lwn-3a99e6db539e53cc9c79282e80f8362b0cb96ac8.zip | |
perf bench mem: Prepare the x86-64 build for upstream memcpy_mcsafe() changes
The following upcoming upstream commit:
92b0729c34ca ("x86/mm, x86/mce: Add memcpy_mcsafe()")
Adds _ASM_EXTABLE_FAULT(), which is not available in user-space
and breaks the build.
We don't really need _ASM_EXTABLE_FAULT() in user-space, so simply
wrap it to nothing.
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | tools/perf/bench/mem-memcpy-x86-64-asm.S | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm.S b/tools/perf/bench/mem-memcpy-x86-64-asm.S index e4c2c30143b9..5c3cce082cb8 100644 --- a/tools/perf/bench/mem-memcpy-x86-64-asm.S +++ b/tools/perf/bench/mem-memcpy-x86-64-asm.S @@ -1,6 +1,11 @@ + +/* Various wrappers to make the kernel .S file build in user-space: */ + #define memcpy MEMCPY /* don't hide glibc's memcpy() */ #define altinstr_replacement text #define globl p2align 4; .globl +#define _ASM_EXTABLE_FAULT(x, y) + #include "../../../arch/x86/lib/memcpy_64.S" /* * We need to provide note.GNU-stack section, saying that we want |