mbox series

[v4,0/6] Fix missing leaf-function callers when recording

Message ID 20211215151139.40854-1-german.gomez@arm.com (mailing list archive)
Headers show
Series Fix missing leaf-function callers when recording | expand

Message

German Gomez Dec. 15, 2021, 3:11 p.m. UTC 
(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