Commit f50a7052 authored by Jens Axboe's avatar Jens Axboe
Browse files

sparc: add support for TIF_NOTIFY_SIGNAL 



Wire up TIF_NOTIFY_SIGNAL handling for sparc.

Cc: sparclinux@vger.kernel.org
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 24a31b81

arch/sparc/include/asm/thread_info_32.h

+3 −1
Original line number Diff line number Diff line
@@ -104,6 +104,7 @@ register struct thread_info *current_thread_info_reg asm("g6"); 
#define TIF_SIGPENDING		2	/* signal pending */

#define TIF_NEED_RESCHED	3	/* rescheduling necessary */

#define TIF_RESTORE_SIGMASK	4	/* restore signal mask in do_signal() */

#define TIF_NOTIFY_SIGNAL	5	/* signal notifications exist */

#define TIF_USEDFPU		8	/* FPU was used by this task

					 * this quantum (SMP) */

#define TIF_POLLING_NRFLAG	9	/* true if poll_idle() is polling
@@ -115,11 +116,12 @@ register struct thread_info *current_thread_info_reg asm("g6"); 
#define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)

#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)

#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)

#define _TIF_NOTIFY_SIGNAL	(1<<TIF_NOTIFY_SIGNAL)

#define _TIF_USEDFPU		(1<<TIF_USEDFPU)

#define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)



#define _TIF_DO_NOTIFY_RESUME_MASK	(_TIF_NOTIFY_RESUME | \

					 _TIF_SIGPENDING)

					 _TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL)



#define is_32bit_task()	(1)

arch/sparc/include/asm/thread_info_64.h

+4 −2
Original line number Diff line number Diff line
@@ -180,7 +180,7 @@ extern struct thread_info *current_thread_info(void); 
#define TIF_NOTIFY_RESUME	1	/* callback before returning to user */

#define TIF_SIGPENDING		2	/* signal pending */

#define TIF_NEED_RESCHED	3	/* rescheduling necessary */

/* flag bit 4 is available */

#define TIF_NOTIFY_SIGNAL	4	/* signal notifications exist */

#define TIF_UNALIGNED		5	/* allowed to do unaligned accesses */

#define TIF_UPROBE		6	/* breakpointed or singlestepped */

#define TIF_32BIT		7	/* 32-bit binary */
@@ -200,6 +200,7 @@ extern struct thread_info *current_thread_info(void); 
#define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)

#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)

#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)

#define _TIF_NOTIFY_SIGNAL	(1<<TIF_NOTIFY_SIGNAL)

#define _TIF_UNALIGNED		(1<<TIF_UNALIGNED)

#define _TIF_UPROBE		(1<<TIF_UPROBE)

#define _TIF_32BIT		(1<<TIF_32BIT)
@@ -213,7 +214,8 @@ extern struct thread_info *current_thread_info(void); 
				 _TIF_DO_NOTIFY_RESUME_MASK | \

				 _TIF_NEED_RESCHED)

#define _TIF_DO_NOTIFY_RESUME_MASK	(_TIF_NOTIFY_RESUME | \

					 _TIF_SIGPENDING | _TIF_UPROBE)

					 _TIF_SIGPENDING | _TIF_UPROBE | \

					 _TIF_NOTIFY_SIGNAL)



#define is_32bit_task()	(test_thread_flag(TIF_32BIT))

arch/sparc/kernel/signal_32.c

+1 −1
Original line number Diff line number Diff line
@@ -521,7 +521,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) 
void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0,

		      unsigned long thread_info_flags)

{

	if (thread_info_flags & _TIF_SIGPENDING)

	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))

		do_signal(regs, orig_i0);

	if (thread_info_flags & _TIF_NOTIFY_RESUME)

		tracehook_notify_resume(regs);

arch/sparc/kernel/signal_64.c

+1 −1
Original line number Diff line number Diff line
@@ -549,7 +549,7 @@ void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long 
	user_exit();

	if (thread_info_flags & _TIF_UPROBE)

		uprobe_notify_resume(regs);

	if (thread_info_flags & _TIF_SIGPENDING)

	if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL))

		do_signal(regs, orig_i0);

	if (thread_info_flags & _TIF_NOTIFY_RESUME)

		tracehook_notify_resume(regs);

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