riscv: add riscv rethook implementation

Implement the kretprobes on riscv arch by using rethook machenism which abstracts general kretprobe info into a struct rethook_node to be embedded in the struct kretprobe_instance. Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Binglei Wang <l3b2w1@gmail.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20221025151831.1097417-1-conor@kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2026-09-28 19:20:30 +00:00 · 2022-10-25 16:18:32 +01:00 · 2022-10-25 16:18:32 +01:00 · b57c2f1240
commit b57c2f1240
parent d8bf77a1dc
8 changed files with 130 additions and 109 deletions
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
--- a/arch/riscv/include/asm/kprobes.h
+++ b/arch/riscv/include/asm/kprobes.h
--- a/arch/riscv/kernel/probes/Makefile
+++ b/arch/riscv/kernel/probes/Makefile
--- a/arch/riscv/kernel/probes/kprobes.c
+++ b/arch/riscv/kernel/probes/kprobes.c
--- a/arch/riscv/kernel/probes/rethook.c
+++ b/arch/riscv/kernel/probes/rethook.c
--- a/arch/riscv/kernel/probes/rethook.h
+++ b/arch/riscv/kernel/probes/rethook.h
--- a/arch/riscv/kernel/probes/rethook_trampoline.S
+++ b/arch/riscv/kernel/probes/rethook_trampoline.S