[PATCH v3 0/6] Add uprobes support for LoongArch

From: Tiezhu Yang
Date: Wed Apr 19 2023 - 05:57:29 EST


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 | 36 +++++++++
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 | 143 +++++++++++++++++++++++++++++++++++
10 files changed, 298 insertions(+), 72 deletions(-)
create mode 100644 arch/loongarch/include/asm/uprobes.h
create mode 100644 arch/loongarch/kernel/uprobes.c

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2.1.0