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sparc64: tracehook: TIF_NOTIFY_RESUME

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This adds TIF_NOTIFY_RESUME support for sparc64.
When set, we call tracehook_notify_resume() on the way to user mode.

Signed-off-by: Roland McGrath <roland@redhat.com>
This commit is contained in:
Roland McGrath 2008-04-20 15:06:49 -07:00 • committed by David S. Miller
parent badcbf0e86
commit e35a8925e0
3 changed files with 13 additions and 6 deletions
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8
arch/sparc/include/asm/thread_info_64.h
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@ -219,7 +219,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
* nop
*/
#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
/* flags bit 1 is available */
#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_PERFCTR 4 /* performance counters active */
@ -239,6 +239,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
#define TIF_POLLING_NRFLAG 14
#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
#define _TIF_PERFCTR (1<<TIF_PERFCTR)
@ -250,8 +251,9 @@ register struct thread_info *current_thread_info_reg asm("g6");
#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
#define _TIF_USER_WORK_MASK ((0xff << TI_FLAG_WSAVED_SHIFT) | \
(_TIF_SIGPENDING | \
_TIF_NEED_RESCHED | _TIF_PERFCTR))
_TIF_DO_NOTIFY_RESUME_MASK | \
_TIF_NEED_RESCHED | _TIF_PERFCTR)
#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
/*
* Thread-synchronous status.