diff options
Diffstat (limited to 'arch/loongarch/include/asm/unwind.h')
| -rw-r--r-- | arch/loongarch/include/asm/unwind.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/unwind.h b/arch/loongarch/include/asm/unwind.h index f2b52b9ea93d..834ba6bd15d2 100644 --- a/arch/loongarch/include/asm/unwind.h +++ b/arch/loongarch/include/asm/unwind.h @@ -8,7 +8,9 @@ #define _ASM_UNWIND_H #include <linux/sched.h> +#include <linux/ftrace.h> +#include <asm/ptrace.h> #include <asm/stacktrace.h> enum unwinder_type { @@ -40,4 +42,12 @@ static inline bool unwind_error(struct unwind_state *state) return state->error; } +#define GRAPH_FAKE_OFFSET (sizeof(struct pt_regs) - offsetof(struct pt_regs, regs[1])) + +static inline unsigned long unwind_graph_addr(struct unwind_state *state, + unsigned long pc, unsigned long cfa) +{ + return ftrace_graph_ret_addr(state->task, &state->graph_idx, + pc, (unsigned long *)(cfa - GRAPH_FAKE_OFFSET)); +} #endif /* _ASM_UNWIND_H */ |