@@ -16,7 +16,9 @@ struct unwind_state {
unsigned long stack_mask;
struct task_struct *task;
int graph_idx;
+#ifdef CONFIG_KRETPROBES
struct llist_node *kr_cur;
+#endif
bool error;
#if defined(CONFIG_UNWINDER_ORC)
bool signal, full_regs;
@@ -105,9 +107,13 @@ static inline
unsigned long unwind_recover_kretprobe(struct unwind_state *state,
unsigned long addr, unsigned long *addr_p)
{
+#ifdef CONFIG_KRETPROBES
return is_kretprobe_trampoline(addr) ?
kretprobe_find_ret_addr(state->task, addr_p, &state->kr_cur) :
addr;
+#else
+ return addr;
+#endif
}
/* Recover the return address modified by kretprobe and ftrace_graph. */
Compile kretprobe related stacktrace entry recovery code and unwind_state::kr_cur field only when CONFIG_KRETPROBES=y. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> --- arch/x86/include/asm/unwind.h | 6 ++++++ 1 file changed, 6 insertions(+)