From e35a8925e0e7af8b26161a2c161ea31be0296b80 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Sun, 20 Apr 2008 15:06:49 -0700 Subject: 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 --- arch/sparc64/kernel/rtrap.S | 6 +++--- arch/sparc64/kernel/signal.c | 5 +++++ 2 files changed, 8 insertions(+), 3 deletions(-) (limited to 'arch/sparc64') diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S index c6fc695fe1f..97a993c1f7f 100644 --- a/arch/sparc64/kernel/rtrap.S +++ b/arch/sparc64/kernel/rtrap.S @@ -46,7 +46,7 @@ __handle_user_windows: wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate ldx [%g6 + TI_FLAGS], %l0 -1: andcc %l0, _TIF_SIGPENDING, %g0 +1: andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 be,pt %xcc, __handle_user_windows_continue nop mov %l5, %o1 @@ -86,7 +86,7 @@ __handle_perfctrs: wrpr %g0, RTRAP_PSTATE, %pstate wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate ldx [%g6 + TI_FLAGS], %l0 -1: andcc %l0, _TIF_SIGPENDING, %g0 +1: andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 be,pt %xcc, __handle_perfctrs_continue sethi %hi(TSTATE_PEF), %o0 @@ -195,7 +195,7 @@ __handle_preemption_continue: andcc %l1, %o0, %g0 andcc %l0, _TIF_NEED_RESCHED, %g0 bne,pn %xcc, __handle_preemption - andcc %l0, _TIF_SIGPENDING, %g0 + andcc %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0 bne,pn %xcc, __handle_signal __handle_signal_continue: ldub [%g6 + TI_WSAVED], %o2 diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c index 9667e96fd51..9424fdab306 100644 --- a/arch/sparc64/kernel/signal.c +++ b/arch/sparc64/kernel/signal.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -605,4 +606,8 @@ void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long { if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs, orig_i0); + if (thread_info_flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } } -- cgit v1.2.3