diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2015-02-27 00:09:17 -0500 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-02-27 00:18:23 -0500 |
| commit | 13648b0118a24f4fc76c34e6c7b6ccf447e46a2a (patch) | |
| tree | 1facc387bd1da19bb1ba8a343530135a1534dc57 /arch/arc/kernel/stacktrace.c | |
| parent | ceed97ab4ff76cb5b1d616a810e941f8837dc440 (diff) | |
ARC: Fix KSTK_ESP()
/proc/<pid>/maps currently don't annotate stack vma with "[stack]"
This is because KSTK_ESP ie expected to return usermode SP of tsk while
currently it returns the kernel mode SP of a sleeping tsk.
While the fix is trivial, we also need to adjust the ARC kernel stack
unwinder to not use KSTK_SP and friends any more.
Cc: <stable@vger.kernel.org>
Reported-and-suggested-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel/stacktrace.c')
| -rw-r--r-- | arch/arc/kernel/stacktrace.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index 6492507a3d74..92320d6f737c 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c | |||
| @@ -73,9 +73,9 @@ static void seed_unwind_frame_info(struct task_struct *tsk, | |||
| 73 | 73 | ||
| 74 | frame_info->task = tsk; | 74 | frame_info->task = tsk; |
| 75 | 75 | ||
| 76 | frame_info->regs.r27 = KSTK_FP(tsk); | 76 | frame_info->regs.r27 = TSK_K_FP(tsk); |
| 77 | frame_info->regs.r28 = KSTK_ESP(tsk); | 77 | frame_info->regs.r28 = TSK_K_ESP(tsk); |
| 78 | frame_info->regs.r31 = KSTK_BLINK(tsk); | 78 | frame_info->regs.r31 = TSK_K_BLINK(tsk); |
| 79 | frame_info->regs.r63 = (unsigned int)__switch_to; | 79 | frame_info->regs.r63 = (unsigned int)__switch_to; |
| 80 | 80 | ||
| 81 | /* In the prologue of __switch_to, first FP is saved on stack | 81 | /* In the prologue of __switch_to, first FP is saved on stack |