Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b6ef5bb3 authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

[S390] add TIF_SYSCALL thread flag 



Add an explicit TIF_SYSCALL bit that indicates if a task is inside
a system call. The svc_code in the pt_regs structure is now only
valid if TIF_SYSCALL is set. With this definition TIF_RESTART_SVC
can be replaced with TIF_SYSCALL. Overall do_signal is a bit more
readable and it saves a few lines of code.

Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent ccf45caf

arch/s390/include/asm/syscall.h

+2 −1
Original line number Diff line number Diff line
@@ -26,7 +26,8 @@ extern const unsigned int sys_call_table[]; 
static inline long syscall_get_nr(struct task_struct *task,

				  struct pt_regs *regs)

{

	return regs->svc_code ? (regs->svc_code & 0xffff) : -1;

	return test_tsk_thread_flag(task, TIF_SYSCALL) ?

		(regs->svc_code & 0xffff) : -1;

}



static inline void syscall_rollback(struct task_struct *task,

arch/s390/include/asm/thread_info.h

+2 −2
Original line number Diff line number Diff line
@@ -85,10 +85,10 @@ static inline struct thread_info *current_thread_info(void) 
/*

 * thread information flags bit numbers

 */

#define TIF_SYSCALL		0	/* inside a system call */

#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_RESTART_SVC		4	/* restart svc with new svc number */

#define TIF_PER_TRAP		6	/* deliver sigtrap on return to user */

#define TIF_MCCK_PENDING	7	/* machine check handling is pending */

#define TIF_SYSCALL_TRACE	8	/* syscall trace active */
@@ -104,11 +104,11 @@ static inline struct thread_info *current_thread_info(void) 
#define TIF_SINGLE_STEP		20	/* This task is single stepped */

#define TIF_FREEZE		21	/* thread is freezing for suspend */



#define _TIF_SYSCALL		(1<<TIF_SYSCALL)

#define _TIF_NOTIFY_RESUME	(1<<TIF_NOTIFY_RESUME)

#define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)

#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)

#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)

#define _TIF_RESTART_SVC	(1<<TIF_RESTART_SVC)

#define _TIF_PER_TRAP		(1<<TIF_PER_TRAP)

#define _TIF_MCCK_PENDING	(1<<TIF_MCCK_PENDING)

#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)

arch/s390/kernel/compat_signal.c

+1 −1
Original line number Diff line number Diff line
@@ -342,7 +342,7 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs) 
		return err;



	restore_fp_regs(&current->thread.fp_regs);

	regs->svc_code = 0;	/* disable syscall checks */

	clear_thread_flag(TIF_SYSCALL);	/* No longer in a system call */

	return 0;

}

arch/s390/kernel/entry.S

+25 −41
Original line number Diff line number Diff line
@@ -47,11 +47,11 @@ SP_SVC_CODE = STACK_FRAME_OVERHEAD + __PT_SVC_CODE 
SP_SIZE      =	STACK_FRAME_OVERHEAD + __PT_SIZE



_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \

		 _TIF_MCCK_PENDING | _TIF_RESTART_SVC | _TIF_PER_TRAP )

		 _TIF_MCCK_PENDING | _TIF_PER_TRAP )

_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \

		 _TIF_MCCK_PENDING)

_TIF_SYSCALL = (_TIF_SYSCALL_TRACE>>8 | _TIF_SYSCALL_AUDIT>>8 | \

		_TIF_SECCOMP>>8 | _TIF_SYSCALL_TRACEPOINT>>8)

_TIF_TRACE    = (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \

		 _TIF_SYSCALL_TRACEPOINT)



STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER

STACK_SIZE  = 1 << STACK_SHIFT
@@ -227,9 +227,10 @@ ENTRY(system_call) 
sysc_saveall:

	SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA

	CREATE_STACK_FRAME __LC_SAVE_AREA

	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	mvc	SP_PSW(8,%r15),__LC_SVC_OLD_PSW

	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC

	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	oi	__TI_flags+3(%r12),_TIF_SYSCALL

sysc_vtime:

	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER

sysc_stime:
@@ -248,7 +249,7 @@ sysc_do_svc: 
sysc_nr_ok:

	sll	%r7,2		  # svc number *4

	l	%r10,BASED(.Lsysc_table)

	tm	__TI_flags+2(%r12),_TIF_SYSCALL

	tm	__TI_flags+2(%r12),_TIF_TRACE >> 8

	mvc	SP_ARGS(4,%r15),SP_R7(%r15)

	l	%r8,0(%r7,%r10)	  # get system call addr.

	bnz	BASED(sysc_tracesys)
@@ -258,23 +259,19 @@ sysc_nr_ok: 
sysc_return:

	LOCKDEP_SYS_EXIT

sysc_tif:

	tm	SP_PSW+1(%r15),0x01	# returning to user ?

	bno	BASED(sysc_restore)

	tm	__TI_flags+3(%r12),_TIF_WORK_SVC

	bnz	BASED(sysc_work)  # there is work to do (signals etc.)

	ni	__TI_flags+3(%r12),255-_TIF_SYSCALL

sysc_restore:

	RESTORE_ALL __LC_RETURN_PSW,1

sysc_done:



#

# There is work to do, but first we need to check if we return to userspace.

#

sysc_work:

	tm	SP_PSW+1(%r15),0x01	# returning to user ?

	bno	BASED(sysc_restore)



#

# One of the work bits is on. Find out which one.

#

sysc_work_tif:

sysc_work:

	tm	__TI_flags+3(%r12),_TIF_MCCK_PENDING

	bo	BASED(sysc_mcck_pending)

	tm	__TI_flags+3(%r12),_TIF_NEED_RESCHED
@@ -283,8 +280,6 @@ sysc_work_tif: 
	bo	BASED(sysc_sigpending)

	tm	__TI_flags+3(%r12),_TIF_NOTIFY_RESUME

	bo	BASED(sysc_notify_resume)

	tm	__TI_flags+3(%r12),_TIF_RESTART_SVC

	bo	BASED(sysc_restart)

	tm	__TI_flags+3(%r12),_TIF_PER_TRAP

	bo	BASED(sysc_singlestep)

	b	BASED(sysc_return)	# beware of critical section cleanup
@@ -313,11 +308,14 @@ sysc_sigpending: 
	la	%r2,SP_PTREGS(%r15)	# load pt_regs

	l	%r1,BASED(.Ldo_signal)

	basr	%r14,%r1		# call do_signal

	tm	__TI_flags+3(%r12),_TIF_RESTART_SVC

	bo	BASED(sysc_restart)

	tm	__TI_flags+3(%r12),_TIF_PER_TRAP

	bo	BASED(sysc_singlestep)

	b	BASED(sysc_return)

	tm	__TI_flags+3(%r12),_TIF_SYSCALL

	bno	BASED(sysc_return)

	lm	%r2,%r6,SP_R2(%r15)	# load svc arguments

	xr	%r7,%r7			# svc 0 returns -ENOSYS

	clc	SP_SVC_CODE+2(2,%r15),BASED(.Lnr_syscalls+2)

	bnl	BASED(sysc_nr_ok)	# invalid svc number -> do svc 0

	icm	%r7,3,SP_SVC_CODE+2(%r15)# load new svc number

	b	BASED(sysc_nr_ok)	# restart svc



#

# _TIF_NOTIFY_RESUME is set, call do_notify_resume
@@ -328,25 +326,11 @@ sysc_notify_resume: 
	la	%r14,BASED(sysc_return)

	br	%r1			# call do_notify_resume





#

# _TIF_RESTART_SVC is set, set up registers and restart svc

#

sysc_restart:

	ni	__TI_flags+3(%r12),255-_TIF_RESTART_SVC # clear TIF_RESTART_SVC

	lm	%r2,%r6,SP_R2(%r15)	# load svc arguments

	xr	%r7,%r7			# svc 0 returns -ENOSYS

	clc	SP_SVC_CODE+2(%r15),BASED(.Lnr_syscalls+2)

	bnl	BASED(sysc_nr_ok)	# invalid svc number -> do svc 0

	icm	%r7,3,SP_SVC_CODE+2(%r15)# load new svc number

	b	BASED(sysc_nr_ok)	# restart svc



#

# _TIF_PER_TRAP is set, call do_per_trap

#

sysc_singlestep:

	ni	__TI_flags+3(%r12),255-_TIF_PER_TRAP # clear TIF_PER_TRAP

	xc	SP_SVC_CODE(4,%r15),SP_SVC_CODE(%r15)	# clear svc code

	ni	__TI_flags+3(%r12),255-(_TIF_SYSCALL | _TIF_PER_TRAP)

	la	%r2,SP_PTREGS(%r15)	# address of register-save area

	l	%r1,BASED(.Lhandle_per)	# load adr. of per handler

	la	%r14,BASED(sysc_return)	# load adr. of system return
@@ -376,7 +360,7 @@ sysc_tracego: 
	basr	%r14,%r8		# call sys_xxx

	st	%r2,SP_R2(%r15)		# store return value

sysc_tracenogo:

	tm	__TI_flags+2(%r12),_TIF_SYSCALL

	tm	__TI_flags+2(%r12),_TIF_TRACE >> 8

	bz	BASED(sysc_return)

	l	%r1,BASED(.Ltrace_exit)

	la	%r2,SP_PTREGS(%r15)	# load pt_regs
@@ -454,7 +438,6 @@ ENTRY(pgm_check_handler) 
	bnz	BASED(pgm_per)		# got per exception -> special case

	SAVE_ALL_PGM __LC_PGM_OLD_PSW,__LC_SAVE_AREA

	CREATE_STACK_FRAME __LC_SAVE_AREA

	xc	SP_SVC_CODE(4,%r15),SP_SVC_CODE(%r15)

	mvc	SP_PSW(8,%r15),__LC_PGM_OLD_PSW

	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
@@ -530,9 +513,10 @@ pgm_exit2: 
pgm_svcper:

	SAVE_ALL_PGM __LC_SVC_OLD_PSW,__LC_SAVE_AREA

	CREATE_STACK_FRAME __LC_SAVE_AREA

	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	mvc	SP_PSW(8,%r15),__LC_SVC_OLD_PSW

	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC

	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	oi	__TI_flags+3(%r12),(_TIF_SYSCALL | _TIF_PER_TRAP)

	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER

	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER

	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
@@ -540,7 +524,6 @@ pgm_svcper: 
	mvc	__THREAD_per_cause(2,%r8),__LC_PER_CAUSE

	mvc	__THREAD_per_address(4,%r8),__LC_PER_ADDRESS

	mvc	__THREAD_per_paid(1,%r8),__LC_PER_PAID

	oi	__TI_flags+3(%r12),_TIF_PER_TRAP # set TIF_PER_TRAP

	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts

	lm	%r2,%r6,SP_R2(%r15)	# load svc arguments

	b	BASED(sysc_do_svc)
@@ -550,7 +533,6 @@ pgm_svcper: 
#

kernel_per:

	REENABLE_IRQS

	xc	SP_SVC_CODE(4,%r15),SP_SVC_CODE(%r15)

	la	%r2,SP_PTREGS(%r15)	# address of register-save area

	l	%r1,BASED(.Lhandle_per)	# load adr. of per handler

	basr	%r14,%r1		# branch to do_single_step
@@ -965,9 +947,11 @@ cleanup_system_call: 
	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw

	st	%r15,12(%r12)

	CREATE_STACK_FRAME __LC_SAVE_AREA

	mvc	0(4,%r12),__LC_THREAD_INFO

	l	%r12,__LC_THREAD_INFO

	mvc	SP_PSW(8,%r15),__LC_SVC_OLD_PSW

	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC

	mvc	0(4,%r12),__LC_THREAD_INFO

	oi	__TI_flags+3(%r12),_TIF_SYSCALL

cleanup_vtime:

	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+12)

	bhe	BASED(cleanup_stime)

arch/s390/kernel/entry64.S

+26 −41
Original line number Diff line number Diff line
@@ -50,11 +50,11 @@ STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER 
STACK_SIZE  = 1 << STACK_SHIFT



_TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \

		 _TIF_MCCK_PENDING | _TIF_RESTART_SVC | _TIF_PER_TRAP )

		 _TIF_MCCK_PENDING | _TIF_PER_TRAP )

_TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \

		 _TIF_MCCK_PENDING)

_TIF_SYSCALL = (_TIF_SYSCALL_TRACE>>8 | _TIF_SYSCALL_AUDIT>>8 | \

		_TIF_SECCOMP>>8 | _TIF_SYSCALL_TRACEPOINT>>8)

_TIF_TRACE    = (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SECCOMP | \

		 _TIF_SYSCALL_TRACEPOINT)

_TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)



#define BASED(name) name-system_call(%r13)
@@ -248,9 +248,10 @@ ENTRY(system_call) 
sysc_saveall:

	SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA

	CREATE_STACK_FRAME __LC_SAVE_AREA

	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	mvc	SP_PSW(16,%r15),__LC_SVC_OLD_PSW

	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC

	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	oi	__TI_flags+7(%r12),_TIF_SYSCALL

sysc_vtime:

	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER

sysc_stime:
@@ -276,7 +277,7 @@ sysc_nr_ok: 
	larl	%r10,sys_call_table_emu  # use 31 bit emulation system calls

sysc_noemu:

#endif

	tm	__TI_flags+6(%r12),_TIF_SYSCALL

	tm	__TI_flags+6(%r12),_TIF_TRACE >> 8

	mvc	SP_ARGS(8,%r15),SP_R7(%r15)

	lgf	%r8,0(%r7,%r10) # load address of system call routine

	jnz	sysc_tracesys
@@ -286,23 +287,19 @@ sysc_noemu: 
sysc_return:

	LOCKDEP_SYS_EXIT

sysc_tif:

	tm	SP_PSW+1(%r15),0x01	# returning to user ?

	jno	sysc_restore

	tm	__TI_flags+7(%r12),_TIF_WORK_SVC

	jnz	sysc_work	# there is work to do (signals etc.)

	ni	__TI_flags+7(%r12),255-_TIF_SYSCALL

sysc_restore:

	RESTORE_ALL __LC_RETURN_PSW,1

sysc_done:



#

# There is work to do, but first we need to check if we return to userspace.

#

sysc_work:

	tm	SP_PSW+1(%r15),0x01	# returning to user ?

	jno	sysc_restore



#

# One of the work bits is on. Find out which one.

#

sysc_work_tif:

sysc_work:

	tm	__TI_flags+7(%r12),_TIF_MCCK_PENDING

	jo	sysc_mcck_pending

	tm	__TI_flags+7(%r12),_TIF_NEED_RESCHED
@@ -311,8 +308,6 @@ sysc_work_tif: 
	jo	sysc_sigpending

	tm	__TI_flags+7(%r12),_TIF_NOTIFY_RESUME

	jo	sysc_notify_resume

	tm	__TI_flags+7(%r12),_TIF_RESTART_SVC

	jo	sysc_restart

	tm	__TI_flags+7(%r12),_TIF_PER_TRAP

	jo	sysc_singlestep

	j	sysc_return		# beware of critical section cleanup
@@ -338,11 +333,15 @@ sysc_sigpending: 
	ni	__TI_flags+7(%r12),255-_TIF_PER_TRAP # clear TIF_PER_TRAP

	la	%r2,SP_PTREGS(%r15)	# load pt_regs

	brasl	%r14,do_signal		# call do_signal

	tm	__TI_flags+7(%r12),_TIF_RESTART_SVC

	jo	sysc_restart

	tm	__TI_flags+7(%r12),_TIF_PER_TRAP

	jo	sysc_singlestep

	j	sysc_return

	tm	__TI_flags+7(%r12),_TIF_SYSCALL

	jno	sysc_return

	lmg	%r2,%r6,SP_R2(%r15)	# load svc arguments

	lghi	%r7,0			# svc 0 returns -ENOSYS

	lh	%r1,SP_SVC_CODE+2(%r15)	# load new svc number

	cghi	%r1,NR_syscalls

	jnl	sysc_nr_ok		# invalid svc number -> do svc 0

	slag	%r7,%r1,2

	j	sysc_nr_ok		# restart svc



#

# _TIF_NOTIFY_RESUME is set, call do_notify_resume
@@ -352,25 +351,11 @@ sysc_notify_resume: 
	larl	%r14,sysc_return

	jg	do_notify_resume	# call do_notify_resume



#

# _TIF_RESTART_SVC is set, set up registers and restart svc

#

sysc_restart:

	ni	__TI_flags+7(%r12),255-_TIF_RESTART_SVC # clear TIF_RESTART_SVC

	lmg	%r2,%r6,SP_R2(%r15)	# load svc arguments

	lghi	%r7,0			# svc 0 returns -ENOSYS

	lh	%r1,SP_SVC_CODE+2(%r15)	# load new svc number

	cghi	%r1,NR_syscalls

	jnl	sysc_nr_ok		# invalid svc number -> do svc 0

	slag	%r7,%r1,2

	j	sysc_nr_ok		# restart svc



#

# _TIF_PER_TRAP is set, call do_per_trap

#

sysc_singlestep:

	ni	__TI_flags+7(%r12),255-_TIF_PER_TRAP	# clear TIF_PER_TRAP

	xc	SP_SVC_CODE(4,%r15),SP_SVC_CODE(%r15)	# clear svc code

	ni	__TI_flags+7(%r12),255-(_TIF_SYSCALL | _TIF_PER_TRAP)

	la	%r2,SP_PTREGS(%r15)	# address of register-save area

	larl	%r14,sysc_return	# load adr. of system return

	jg	do_per_trap
@@ -397,7 +382,7 @@ sysc_tracego: 
	basr	%r14,%r8		# call sys_xxx

	stg	%r2,SP_R2(%r15)		# store return value

sysc_tracenogo:

	tm	__TI_flags+6(%r12),_TIF_SYSCALL

	tm	__TI_flags+6(%r12),_TIF_TRACE >> 8

	jz	sysc_return

	la	%r2,SP_PTREGS(%r15)	# load pt_regs

	larl	%r14,sysc_return	# return point is sysc_return
@@ -470,7 +455,6 @@ ENTRY(pgm_check_handler) 
	jnz	pgm_per 		 # got per exception -> special case

	SAVE_ALL_PGM __LC_PGM_OLD_PSW,__LC_SAVE_AREA

	CREATE_STACK_FRAME __LC_SAVE_AREA

	xc	SP_SVC_CODE(4,%r15),SP_SVC_CODE(%r15)

	mvc	SP_PSW(16,%r15),__LC_PGM_OLD_PSW

	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	HANDLE_SIE_INTERCEPT
@@ -550,9 +534,10 @@ pgm_exit2: 
pgm_svcper:

	SAVE_ALL_PGM __LC_SVC_OLD_PSW,__LC_SAVE_AREA

	CREATE_STACK_FRAME __LC_SAVE_AREA

	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	mvc	SP_PSW(16,%r15),__LC_SVC_OLD_PSW

	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC

	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct

	oi	__TI_flags+7(%r12),(_TIF_SYSCALL | _TIF_PER_TRAP)

	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER

	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER

	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
@@ -561,7 +546,6 @@ pgm_svcper: 
	mvc	__THREAD_per_cause(2,%r8),__LC_PER_CAUSE

	mvc	__THREAD_per_address(8,%r8),__LC_PER_ADDRESS

	mvc	__THREAD_per_paid(1,%r8),__LC_PER_PAID

	oi	__TI_flags+7(%r12),_TIF_PER_TRAP # set TIF_PER_TRAP

	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts

	lmg	%r2,%r6,SP_R2(%r15)	# load svc arguments

	j	sysc_do_svc
@@ -571,7 +555,6 @@ pgm_svcper: 
#

kernel_per:

	REENABLE_IRQS

	xc	SP_SVC_CODE(4,%r15),SP_SVC_CODE(%r15)	# clear svc number

	la	%r2,SP_PTREGS(%r15)	# address of register-save area

	brasl	%r14,do_per_trap

	j	pgm_exit
@@ -972,9 +955,11 @@ cleanup_system_call: 
	stg	%r15,32(%r12)

	stg	%r11,0(%r12)

	CREATE_STACK_FRAME __LC_SAVE_AREA

	mvc	8(8,%r12),__LC_THREAD_INFO

	lg	%r12,__LC_THREAD_INFO

	mvc	SP_PSW(16,%r15),__LC_SVC_OLD_PSW

	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC

	mvc	8(8,%r12),__LC_THREAD_INFO

	oi	__TI_flags+7(%r12),_TIF_SYSCALL

cleanup_vtime:

	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+24)

	jhe	cleanup_stime