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Groups > linux.kernel > #1428470
| From | He Kuang <hekuang@huawei.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 2/5] perf unwind: Fix wrongly used regs for x86_32 unwind |
| Date | 2016-06-22 09:00 +0200 |
| Message-ID | <rMKiJ-8pY-5@gated-at.bofh.it> (permalink) |
| References | <rMKiJ-8pY-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
By default, "unwind-libunwind-local.c" gets SP/IP register number according to the host platform, for remote unwind, we should use register number for target platform. Fix this by define LIBUNWIND_ARCH_REG_SP/IP in the wrapper file of x86_32 platform. Signed-off-by: He Kuang <hekuang@huawei.com> Acked-by: Jiri Olsa <jolsa@kernel.org> --- tools/perf/util/libunwind/x86_32.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/perf/util/libunwind/x86_32.c b/tools/perf/util/libunwind/x86_32.c index d98c17e..957ffff 100644 --- a/tools/perf/util/libunwind/x86_32.c +++ b/tools/perf/util/libunwind/x86_32.c @@ -12,7 +12,13 @@ */ #define REMOTE_UNWIND_LIBUNWIND + +/* Define arch specific functions & regs for libunwind, should be + * defined before including "unwind.h" + */ #define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__x86_reg_id(regnum) +#define LIBUNWIND__ARCH_REG_IP PERF_REG_X86_IP +#define LIBUNWIND__ARCH_REG_SP PERF_REG_X86_SP #include "unwind.h" #include "debug.h" -- 1.8.5.2
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[PATCH 0/5] Fixes on perf unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 2/5] perf unwind: Fix wrongly used regs for x86_32 unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 4/5] perf tools: Let python use correct gcc for build_ext He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 1/5] perf unwind: Change macro names of perf register He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 [PATCH 3/5] perf unwind: Fix wrongly used regs for aarch64 unwind He Kuang <hekuang@huawei.com> - 2016-06-22 09:00 +0200 Re: [PATCH 0/5] Fixes on perf unwind Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-06-23 15:40 +0200
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