diff options
| author | Roland McGrath <roland@redhat.com> | 2008-04-19 19:10:57 -0700 |
|---|---|---|
| committer | Roland McGrath <roland@redhat.com> | 2008-07-26 14:38:05 -0700 |
| commit | 59e52130f04537d2c80ea44bb007cadd1ad29543 (patch) | |
| tree | 80531b2e893f1b4a339ffc84351a82c0347601e6 /include/asm-x86/thread_info.h | |
| parent | 4dfcbb997aa9f3a6a3ed8c192f0dac28b027e08f (diff) | |
x86: tracehook: TIF_NOTIFY_RESUME
This adds TIF_NOTIFY_RESUME support for x86, both 64-bit and 32-bit.
When set, we call tracehook_notify_resume() on the way to user mode.
Signed-off-by: Roland McGrath <roland@redhat.com>
Diffstat (limited to 'include/asm-x86/thread_info.h')
| -rw-r--r-- | include/asm-x86/thread_info.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/asm-x86/thread_info.h b/include/asm-x86/thread_info.h index da0a675adf94..4cd5b7bdc8cc 100644 --- a/include/asm-x86/thread_info.h +++ b/include/asm-x86/thread_info.h @@ -71,6 +71,7 @@ struct thread_info { * Warning: layout of LSW is hardcoded in entry.S */ #define TIF_SYSCALL_TRACE 0 /* syscall trace active */ +#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_SINGLESTEP 4 /* reenable singlestep on user return*/ @@ -93,6 +94,7 @@ struct thread_info { #define TIF_BTS_TRACE_TS 27 /* record scheduling event timestamps */ #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) +#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_SIGPENDING (1 << TIF_SIGPENDING) #define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP) #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) @@ -133,7 +135,7 @@ struct thread_info { /* Only used for 64 bit */ #define _TIF_DO_NOTIFY_MASK \ - (_TIF_SIGPENDING|_TIF_MCE_NOTIFY) + (_TIF_SIGPENDING|_TIF_MCE_NOTIFY|_TIF_NOTIFY_RESUME) /* flags to check in __switch_to() */ #define _TIF_WORK_CTXSW \ |