linux-kernel - [PATCH v4 0/6] Add uprobes support for LoongArch

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Message-Id: <1683792372-29338-1-git-send-email-yangtiezhu@loongson.cn>
Date:   Thu, 11 May 2023 16:06:06 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Huacai Chen <chenhuacai@...nel.org>,
        WANG Xuerui <kernel@...0n.name>
Cc:     loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org,
        loongson-kernel@...ts.loongnix.cn
Subject: [PATCH v4 0/6] Add uprobes support for LoongArch

v4:
  -- Rebased on 6.4rc1
  -- Fix problem about "perf probe -x /lib64/libc.so.6 malloc"

v3:
  -- Check atomic instructions in insns_not_supported()
  -- Remove five DIE_* definitions in kdebug.h

v2:
  -- Move the functions to inst.c in patch #1
  -- Pass around union for insns_not_supported(),
     insns_need_simulation() and arch_simulate_insn()

v1:
  -- Split the RFC patch #2 into two patches
  -- Use larch_insn_gen_break() to generate break insns
     for kprobes and uprobes
  -- Pass around instruction word instead of union for
     insns_not_supported(), insns_need_simulation() and
     arch_simulate_insn() to avoid type conversion for callers
  -- Add a simple test case for uprobes in the commit message

Tiezhu Yang (6):
  LoongArch: Move three functions from kprobes.c to inst.c
  LoongArch: Add larch_insn_gen_break() to generate break insns
  LoongArch: Use larch_insn_gen_break() for kprobes
  LoongArch: Add uprobes support
  LoongArch: Check atomic instructions in insns_not_supported()
  LoongArch: Remove five DIE_* definitions in kdebug.h

 arch/loongarch/Kconfig               |   3 +
 arch/loongarch/include/asm/inst.h    |  42 ++++++++++
 arch/loongarch/include/asm/kdebug.h  |   5 --
 arch/loongarch/include/asm/kprobes.h |   2 +-
 arch/loongarch/include/asm/uprobes.h |  35 +++++++++
 arch/loongarch/kernel/Makefile       |   1 +
 arch/loongarch/kernel/inst.c         |  54 +++++++++++++
 arch/loongarch/kernel/kprobes.c      |  75 ++++--------------
 arch/loongarch/kernel/traps.c        |   9 +--
 arch/loongarch/kernel/uprobes.c      | 148 +++++++++++++++++++++++++++++++++++
 10 files changed, 302 insertions(+), 72 deletions(-)
 create mode 100644 arch/loongarch/include/asm/uprobes.h
 create mode 100644 arch/loongarch/kernel/uprobes.c

-- 
2.1.0