[PATCH v3 0/3] csky: perf callchain dwarf support

[Mao Han]

This patch set add perf DWARF unwinding support for C-SKY.
Including user registers/stack dump API, and libdw support.

CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CC: Ingo Molnar <mingo@xxxxxxxxxx>
CC: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CC: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
CC: Jiri Olsa <jolsa@xxxxxxxxxx>
CC: Namhyung Kim <namhyung@xxxxxxxxxx>
CC: Guo Ren <guoren@xxxxxxxxxx>

Changes since v2:
  - use same registers name as struct pt_regs
  - code convention

Changes since v1:
  - seperate the callchain support using frame pointer

Mao Han (3):
  perf: use hweight64 instead of hweight_long
  csky: Add support for perf registers sampling
  csky: add support for libdw

 arch/csky/Kconfig                            |   2 +
 arch/csky/include/uapi/asm/perf_regs.h       |  51 ++++++++++++++
 arch/csky/kernel/Makefile                    |   1 +
 arch/csky/kernel/perf_regs.c                 |  40 +++++++++++
 tools/arch/csky/include/uapi/asm/perf_regs.h |  51 ++++++++++++++
 tools/perf/Makefile.config                   |   6 +-
 tools/perf/arch/csky/Build                   |   1 +
 tools/perf/arch/csky/Makefile                |   3 +
 tools/perf/arch/csky/include/perf_regs.h     | 100 +++++++++++++++++++++++++++
 tools/perf/arch/csky/util/Build              |   2 +
 tools/perf/arch/csky/util/dwarf-regs.c       |  49 +++++++++++++
 tools/perf/arch/csky/util/unwind-libdw.c     |  78 +++++++++++++++++++++
 tools/perf/util/evsel.c                      |   2 +-
 13 files changed, 384 insertions(+), 2 deletions(-)
 create mode 100644 arch/csky/include/uapi/asm/perf_regs.h
 create mode 100644 arch/csky/kernel/perf_regs.c
 create mode 100644 tools/arch/csky/include/uapi/asm/perf_regs.h
 create mode 100644 tools/perf/arch/csky/Build
 create mode 100644 tools/perf/arch/csky/Makefile
 create mode 100644 tools/perf/arch/csky/include/perf_regs.h
 create mode 100644 tools/perf/arch/csky/util/Build
 create mode 100644 tools/perf/arch/csky/util/dwarf-regs.c
 create mode 100644 tools/perf/arch/csky/util/unwind-libdw.c

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2.7.4