From: German Gomez <german.gomez@arm.com> To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, acme@kernel.org Cc: German Gomez <german.gomez@arm.com>, John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>, Mathieu Poirier <mathieu.poirier@linaro.org>, Leo Yan <leo.yan@linaro.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 0/6] Fix missing leaf-function callers when recording Date: Wed, 15 Dec 2021 15:11:32 +0000 [thread overview] Message-ID: <20211215151139.40854-1-german.gomez@arm.com> (raw) (This cset applies on top of [1]) Call-graphs on ARM64 using the option "--call-grah fp" are missing the callers of the leaf functions. See [PATCH 6/6] for a before and after after example using this cset. [1] https://lore.kernel.org/all/20211207180653.1147374-1-german.gomez@arm.com/ --- Changes since v3 - Only record LR register instead of all registers in [PATCH 1/6]. - Introduce [PATCH 5/6] to refactor the SAMPL_REG macro. - Fix compilation issues on different platforms. Alexandre Truong (5): perf tools: record ARM64 LR register automatically perf tools: add a mechanism to inject stack frames perf tools: Refactor script__setup_sample_type() perf tools: enable dwarf_callchain_users on arm64 perf tools: determine if LR is the return address German Gomez (1): perf tools: Refactor SMPL_REG macro in perf_regs.h tools/perf/arch/arm64/util/machine.c | 7 +++ tools/perf/builtin-record.c | 8 +++ tools/perf/builtin-report.c | 4 +- tools/perf/builtin-script.c | 13 +--- tools/perf/util/Build | 1 + .../util/arm64-frame-pointer-unwind-support.c | 63 +++++++++++++++++++ .../util/arm64-frame-pointer-unwind-support.h | 10 +++ tools/perf/util/callchain.c | 9 ++- tools/perf/util/callchain.h | 4 +- tools/perf/util/machine.c | 50 ++++++++++++++- tools/perf/util/machine.h | 1 + tools/perf/util/perf_regs.h | 7 ++- 12 files changed, 157 insertions(+), 20 deletions(-) create mode 100644 tools/perf/util/arm64-frame-pointer-unwind-support.c create mode 100644 tools/perf/util/arm64-frame-pointer-unwind-support.h -- 2.25.1
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From: German Gomez <german.gomez@arm.com> To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, acme@kernel.org Cc: German Gomez <german.gomez@arm.com>, John Garry <john.garry@huawei.com>, Will Deacon <will@kernel.org>, Mathieu Poirier <mathieu.poirier@linaro.org>, Leo Yan <leo.yan@linaro.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 0/6] Fix missing leaf-function callers when recording Date: Wed, 15 Dec 2021 15:11:32 +0000 [thread overview] Message-ID: <20211215151139.40854-1-german.gomez@arm.com> (raw) (This cset applies on top of [1]) Call-graphs on ARM64 using the option "--call-grah fp" are missing the callers of the leaf functions. See [PATCH 6/6] for a before and after after example using this cset. [1] https://lore.kernel.org/all/20211207180653.1147374-1-german.gomez@arm.com/ --- Changes since v3 - Only record LR register instead of all registers in [PATCH 1/6]. - Introduce [PATCH 5/6] to refactor the SAMPL_REG macro. - Fix compilation issues on different platforms. Alexandre Truong (5): perf tools: record ARM64 LR register automatically perf tools: add a mechanism to inject stack frames perf tools: Refactor script__setup_sample_type() perf tools: enable dwarf_callchain_users on arm64 perf tools: determine if LR is the return address German Gomez (1): perf tools: Refactor SMPL_REG macro in perf_regs.h tools/perf/arch/arm64/util/machine.c | 7 +++ tools/perf/builtin-record.c | 8 +++ tools/perf/builtin-report.c | 4 +- tools/perf/builtin-script.c | 13 +--- tools/perf/util/Build | 1 + .../util/arm64-frame-pointer-unwind-support.c | 63 +++++++++++++++++++ .../util/arm64-frame-pointer-unwind-support.h | 10 +++ tools/perf/util/callchain.c | 9 ++- tools/perf/util/callchain.h | 4 +- tools/perf/util/machine.c | 50 ++++++++++++++- tools/perf/util/machine.h | 1 + tools/perf/util/perf_regs.h | 7 ++- 12 files changed, 157 insertions(+), 20 deletions(-) create mode 100644 tools/perf/util/arm64-frame-pointer-unwind-support.c create mode 100644 tools/perf/util/arm64-frame-pointer-unwind-support.h -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2021-12-15 15:11 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-12-15 15:11 German Gomez [this message] 2021-12-15 15:11 ` [PATCH v4 0/6] Fix missing leaf-function callers when recording German Gomez 2021-12-15 15:11 ` [PATCH v4 1/6] perf tools: record ARM64 LR register automatically German Gomez 2021-12-15 15:11 ` German Gomez 2021-12-15 15:11 ` [PATCH v4 2/6] perf tools: add a mechanism to inject stack frames German Gomez 2021-12-15 15:11 ` German Gomez 2021-12-15 15:11 ` [PATCH v4 3/6] perf tools: Refactor script__setup_sample_type() German Gomez 2021-12-15 15:11 ` German Gomez 2021-12-15 15:11 ` [PATCH v4 4/6] perf tools: enable dwarf_callchain_users on arm64 German Gomez 2021-12-15 15:11 ` German Gomez 2021-12-15 16:37 ` Mark Rutland 2021-12-15 16:37 ` Mark Rutland 2021-12-17 12:08 ` German Gomez 2021-12-17 12:08 ` German Gomez 2021-12-15 15:11 ` [PATCH v4 5/6] perf tools: Refactor SMPL_REG macro in perf_regs.h German Gomez 2021-12-15 15:11 ` German Gomez 2021-12-15 15:11 ` [PATCH v4 6/6] perf tools: determine if LR is the return address German Gomez 2021-12-15 15:11 ` German Gomez 2021-12-15 16:33 ` Mark Rutland 2021-12-15 16:33 ` Mark Rutland 2021-12-17 11:57 ` German Gomez 2021-12-17 11:57 ` German Gomez
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