Messages in this thread | | | From | German Gomez <> | Subject | [PATCH v4 0/6] Fix missing leaf-function callers when recording | Date | Wed, 15 Dec 2021 15:11:32 +0000 |
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(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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