linux-kernel - [PATCH V3 0/3] riscv: Add perf callchain support

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Message-Id: <cover.1558081981.git.han_mao@c-sky.com>
Date:   Fri, 17 May 2019 16:43:01 +0800
From:   Mao Han <han_mao@...ky.com>
To:     linux-kernel@...r.kernel.org
Cc:     Mao Han <han_mao@...ky.com>, Palmer Dabbelt <palmer@...ive.com>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        Christoph Hellwig <hch@....de>, Guo Ren <guoren@...nel.org>
Subject: [PATCH V3 0/3] riscv: Add perf callchain support

This patch set add perf callchain(FP/DWARF) support for RISC-V.
It comes from the csky version callchain support with some
slight modifications. The patchset base on Linux 5.1.

CC: Palmer Dabbelt <palmer@...ive.com>
CC: linux-riscv <linux-riscv@...ts.infradead.org>
CC: Christoph Hellwig <hch@....de>
CC: Guo Ren <guoren@...nel.org>

Changes since v2:
  - fix inconsistent comment
  - force to build kernel with -fno-omit-frame-pointer if perf
    event is enabled

Changes since v1:
  - simplify implementation and code convention

Mao Han (3):
  riscv: Add perf callchain support
  riscv: Add support for perf registers sampling
  riscv: Add support for libdw

 arch/riscv/Kconfig                            |   2 +
 arch/riscv/Makefile                           |   3 +
 arch/riscv/include/uapi/asm/perf_regs.h       |  42 ++++++++++
 arch/riscv/kernel/Makefile                    |   4 +-
 arch/riscv/kernel/perf_callchain.c            | 113 ++++++++++++++++++++++++++
 arch/riscv/kernel/perf_regs.c                 |  44 ++++++++++
 tools/arch/riscv/include/uapi/asm/perf_regs.h |  42 ++++++++++
 tools/perf/Makefile.config                    |   6 +-
 tools/perf/arch/riscv/Build                   |   1 +
 tools/perf/arch/riscv/Makefile                |   3 +
 tools/perf/arch/riscv/include/perf_regs.h     |  96 ++++++++++++++++++++++
 tools/perf/arch/riscv/util/Build              |   2 +
 tools/perf/arch/riscv/util/dwarf-regs.c       |  72 ++++++++++++++++
 tools/perf/arch/riscv/util/unwind-libdw.c     |  57 +++++++++++++
 14 files changed, 485 insertions(+), 2 deletions(-)
 create mode 100644 arch/riscv/include/uapi/asm/perf_regs.h
 create mode 100644 arch/riscv/kernel/perf_callchain.c
 create mode 100644 arch/riscv/kernel/perf_regs.c
 create mode 100644 tools/arch/riscv/include/uapi/asm/perf_regs.h
 create mode 100644 tools/perf/arch/riscv/Build
 create mode 100644 tools/perf/arch/riscv/Makefile
 create mode 100644 tools/perf/arch/riscv/include/perf_regs.h
 create mode 100644 tools/perf/arch/riscv/util/Build
 create mode 100644 tools/perf/arch/riscv/util/dwarf-regs.c
 create mode 100644 tools/perf/arch/riscv/util/unwind-libdw.c

-- 
2.7.4