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Message-ID: <1431063784-137600-1-git-send-email-houpengyang@huawei.com> Date: Fri, 8 May 2015 05:43:02 +0000 From: Hou Pengyang <houpengyang@...wei.com> To: <will.deacon@....com>, <a.p.zijlstra@...llo.nl>, <paulus@...ba.org>, <acme@...nel.org>, <mingo@...hat.com> CC: <catalin.marinas@....com>, <wannan0@...wei.com>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org> Subject: [PATCH v4 0/2] arm & arm64: perf: Fix callchain parse error with kernel tracepoint events For arm & arm64, when tracing with tracepoint events, the IP and cpsr are set to 0, preventing the perf code parsing the callchain and resolving the symbols correctly. These two patches fix this by implementing perf_arch_fetch_caller_regs for arm and arm64, which fills several necessary register info for callchain unwinding and symbol resolving. v3->v4: - fix compile errors v2->v3: - split the original patch into two, one for arm and the other arm64; - change '|=' to '=' when setting cpsr. Hou Pengyang (2): arm: perf: Fix callchain parse error with kernel tracepoint events arm64: perf: Fix callchain parse error with kernel tracepoint events arch/arm/include/asm/perf_event.h | 7 +++++++ arch/arm64/include/asm/perf_event.h | 7 +++++++ 2 files changed, 14 insertions(+) -- 1.8.3.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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