Re: [PATCH v2 0/3] Add some perf support for mips

[Tiezhu Yang]

On 02/04/2021 11:35 AM, Tiezhu Yang wrote:
> v2: add R26 and R27 to the enum perf_event_mips_regs in patch #1
>
> Tiezhu Yang (3):
>    MIPS: kernel: Support extracting off-line stack traces from user-space
>      with perf
>    perf tools: Support mips unwinding and dwarf-regs
>    perf tools: Generate mips syscalls_n64.c syscall table

Hi Arnaldo,

The kernel part patch #1 has been merged.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1ddc96bd42da

Could the perf tool patches #2 and #3 have a chance to be merged before 
5.12-rc1?
If yes, we can use this feature in 5.12-rc1.

https://lore.kernel.org/patchwork/patch/1375476/
https://lore.kernel.org/patchwork/patch/1375475/


Thanks,
Tiezhu

>   arch/mips/Kconfig                                  |   2 +
>   arch/mips/include/uapi/asm/perf_regs.h             |  40 +++
>   arch/mips/kernel/Makefile                          |   2 +-
>   arch/mips/kernel/perf_regs.c                       |  68 ++++
>   tools/perf/Makefile.config                         |   9 +-
>   tools/perf/arch/mips/Makefile                      |  22 ++
>   tools/perf/arch/mips/entry/syscalls/mksyscalltbl   |  32 ++
>   .../perf/arch/mips/entry/syscalls/syscall_n64.tbl  | 358 +++++++++++++++++++++
>   tools/perf/arch/mips/include/dwarf-regs-table.h    |  31 ++
>   tools/perf/arch/mips/include/perf_regs.h           |  84 +++++
>   tools/perf/arch/mips/util/Build                    |   3 +
>   tools/perf/arch/mips/util/dwarf-regs.c             |  38 +++
>   tools/perf/arch/mips/util/perf_regs.c              |   6 +
>   tools/perf/arch/mips/util/unwind-libunwind.c       |  22 ++
>   tools/perf/check-headers.sh                        |   1 +
>   tools/perf/util/dwarf-regs.c                       |   3 +
>   tools/perf/util/syscalltbl.c                       |   4 +
>   17 files changed, 723 insertions(+), 2 deletions(-)
>   create mode 100644 arch/mips/include/uapi/asm/perf_regs.h
>   create mode 100644 arch/mips/kernel/perf_regs.c
>   create mode 100644 tools/perf/arch/mips/Makefile
>   create mode 100644 tools/perf/arch/mips/entry/syscalls/mksyscalltbl
>   create mode 100644 tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl
>   create mode 100644 tools/perf/arch/mips/include/dwarf-regs-table.h
>   create mode 100644 tools/perf/arch/mips/include/perf_regs.h
>   create mode 100644 tools/perf/arch/mips/util/Build
>   create mode 100644 tools/perf/arch/mips/util/dwarf-regs.c
>   create mode 100644 tools/perf/arch/mips/util/perf_regs.c
>   create mode 100644 tools/perf/arch/mips/util/unwind-libunwind.c