diff options
| author | Roland McGrath <roland@redhat.com> | 2008-07-27 02:52:52 -0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-28 02:30:50 -0400 |
| commit | 7d6d637dac2050f30a1b57b0a3dc5de4a10616ba (patch) | |
| tree | 5108cacaf5e204d58bc07afb1d67c73144f1bf55 /arch/powerpc/kernel/entry_64.S | |
| parent | f1ba12856b7a7d43e495e216bc91e6bbf7aac383 (diff) | |
powerpc: Add TIF_NOTIFY_RESUME support for tracehook
This adds TIF_NOTIFY_RESUME support for powerpc. When set,
we call tracehook_notify_resume() on the way to user mode.
This overloads do_signal() to do the work, but changes its
arguments to it has the TIF_* bits handy in a register and
drops the useless first argument that was always zero.
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 79c089e97ce4..2d802e97097c 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S | |||
| @@ -643,8 +643,7 @@ user_work: | |||
| 643 | b .ret_from_except_lite | 643 | b .ret_from_except_lite |
| 644 | 644 | ||
| 645 | 1: bl .save_nvgprs | 645 | 1: bl .save_nvgprs |
| 646 | li r3,0 | 646 | addi r3,r1,STACK_FRAME_OVERHEAD |
| 647 | addi r4,r1,STACK_FRAME_OVERHEAD | ||
| 648 | bl .do_signal | 647 | bl .do_signal |
| 649 | b .ret_from_except | 648 | b .ret_from_except |
| 650 | 649 | ||