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authorRoland McGrath <roland@redhat.com>2008-04-20 15:06:49 -0700
committerDavid S. Miller <davem@davemloft.net>2008-07-27 17:32:19 -0700
commite35a8925e0e7af8b26161a2c161ea31be0296b80 (patch)
tree708008d1494a91f76277f9140a219ac24e88e432 /arch/sparc
parentbadcbf0e8654c4a4ca51fe46c75a70376e83c1ef (diff)
downloadlinux-e35a8925e0e7af8b26161a2c161ea31be0296b80.tar.bz2
sparc64: tracehook: TIF_NOTIFY_RESUME
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>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/include/asm/thread_info_64.h8
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 960969d5ad06..c0a737d7292c 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -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.