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| author | Vineet Gupta <vgupta@synopsys.com> | 2013-05-27 21:43:41 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-06-22 19:23:22 +0530 |
| commit | 16f9afe651e8197fb7ce6df0990d8e2ad779e1af (patch) | |
| tree | c6482028a0ceced44e7e4819f7741c2fd8084e3e /arch/arc/kernel/stacktrace.c | |
| parent | 2fa919045b72ec892e17d56f888e6af4260b7629 (diff) | |
| download | blackbird-op-linux-16f9afe651e8197fb7ce6df0990d8e2ad779e1af.tar.gz blackbird-op-linux-16f9afe651e8197fb7ce6df0990d8e2ad779e1af.zip | |
ARC: pt_regs update #3: Remove unused gutter at start of callee_regs
This is trickier than prev two:
* context switching code saves kernel mode callee regs in the format of
struct callee_regs thus needs adjustment. This also reduces the height
of topmost kernel stack frame by 1 word.
* Since kernel stack unwinder is sensitive to height of topmost kernel
stack frame, that needs a word of adjustment too.
ptrace needs a bit of updating since pt_regs now diverges from
user_regs_struct.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel/stacktrace.c')
| -rw-r--r-- | arch/arc/kernel/stacktrace.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index ca0207b9d5b6..f8b7d880304d 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -79,7 +79,7 @@ static void seed_unwind_frame_info(struct task_struct *tsk, * assembly code */ frame_info->regs.r27 = 0; - frame_info->regs.r28 += 64; + frame_info->regs.r28 += 60; frame_info->call_frame = 0; } else { |
