From c64ac9f0581a80b6200846e7007a33c3b24ef745 Mon Sep 17 00:00:00 2001 From: David McCullough Date: Thu, 26 Jul 2007 17:46:07 +0900 Subject: [PATCH] sh: fix get_wchan() for SH kernels without framepointers Do not follow the frame pointers (/proc/X/task/1/stat) unless we were compiled with them. Signed-off-by: David McCullough Signed-off-by: Paul Mundt --- arch/sh/kernel/process.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c index 6334a4c54c7..3a1783010c0 100644 --- a/arch/sh/kernel/process.c +++ b/arch/sh/kernel/process.c @@ -474,7 +474,6 @@ out: unsigned long get_wchan(struct task_struct *p) { - unsigned long schedule_frame; unsigned long pc; if (!p || p == current || p->state == TASK_RUNNING) @@ -484,10 +483,13 @@ unsigned long get_wchan(struct task_struct *p) * The same comment as on the Alpha applies here, too ... */ pc = thread_saved_pc(p); + +#ifdef CONFIG_FRAME_POINTER if (in_sched_functions(pc)) { - schedule_frame = (unsigned long)p->thread.sp; + unsigned long schedule_frame = (unsigned long)p->thread.sp; return ((unsigned long *)schedule_frame)[21]; } +#endif return pc; } -- 2.20.1