diff options
Diffstat (limited to 'arch/x86/kernel/unwind_guess.c')
| -rw-r--r-- | arch/x86/kernel/unwind_guess.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/unwind_guess.c b/arch/x86/kernel/unwind_guess.c index b5a834c93065..9298993dc8b7 100644 --- a/arch/x86/kernel/unwind_guess.c +++ b/arch/x86/kernel/unwind_guess.c @@ -5,6 +5,16 @@ #include <asm/stacktrace.h> #include <asm/unwind.h> +unsigned long unwind_get_return_address(struct unwind_state *state) +{ + if (unwind_done(state)) + return 0; + + return ftrace_graph_ret_addr(state->task, &state->graph_idx, + *state->sp, state->sp); +} +EXPORT_SYMBOL_GPL(unwind_get_return_address); + bool unwind_next_frame(struct unwind_state *state) { struct stack_info *info = &state->stack_info; |