diff options
Diffstat (limited to 'arch/loongarch/kernel/ftrace_dyn.c')
-rw-r--r-- | arch/loongarch/kernel/ftrace_dyn.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/loongarch/kernel/ftrace_dyn.c b/arch/loongarch/kernel/ftrace_dyn.c index 5a801c328e2a..d6f30918f94f 100644 --- a/arch/loongarch/kernel/ftrace_dyn.c +++ b/arch/loongarch/kernel/ftrace_dyn.c @@ -28,6 +28,21 @@ static int ftrace_modify_code(unsigned long pc, u32 old, u32 new, bool validate) return 0; } +#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS +int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_addr, unsigned long addr) +{ + u32 old, new; + unsigned long pc; + + pc = rec->ip + LOONGARCH_INSN_SIZE; + + new = larch_insn_gen_bl(pc, addr); + old = larch_insn_gen_bl(pc, old_addr); + + return ftrace_modify_code(pc, old, new, true); +} +#endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */ + int ftrace_update_ftrace_func(ftrace_func_t func) { u32 new; |