[thirdparty/kernel/stable.git] / arch / x86 / include / asm / thread_info.h

/* SPDX-License-Identifier: GPL-2.0 */
/* thread_info.h: low-level thread information
 *
 * Copyright (C) 2002  David Howells (dhowells@redhat.com)
 * - Incorporating suggestions made by Linus Torvalds and Dave Miller
 */

#ifndef _ASM_X86_THREAD_INFO_H
#define _ASM_X86_THREAD_INFO_H

#include <linux/compiler.h>
#include <asm/page.h>
#include <asm/percpu.h>
#include <asm/types.h>

/*
 * TOP_OF_KERNEL_STACK_PADDING is a number of unused bytes that we
 * reserve at the top of the kernel stack.  We do it because of a nasty
 * 32-bit corner case.  On x86_32, the hardware stack frame is
 * variable-length.  Except for vm86 mode, struct pt_regs assumes a
 * maximum-length frame.  If we enter from CPL 0, the top 8 bytes of
 * pt_regs don't actually exist.  Ordinarily this doesn't matter, but it
 * does in at least one case:
 *
 * If we take an NMI early enough in SYSENTER, then we can end up with
 * pt_regs that extends above sp0.  On the way out, in the espfix code,
 * we can read the saved SS value, but that value will be above sp0.
 * Without this offset, that can result in a page fault.  (We are
 * careful that, in this case, the value we read doesn't matter.)
 *
 * In vm86 mode, the hardware frame is much longer still, so add 16
 * bytes to make room for the real-mode segments.
 *
 * x86_64 has a fixed-length stack frame.
 */
#ifdef CONFIG_X86_32
# ifdef CONFIG_VM86
#  define TOP_OF_KERNEL_STACK_PADDING 16
# else
#  define TOP_OF_KERNEL_STACK_PADDING 8
# endif
#else
# define TOP_OF_KERNEL_STACK_PADDING 0
#endif

/*
 * low level task data that entry.S needs immediate access to
 * - this struct should fit entirely inside of one cache line
 * - this struct shares the supervisor stack pages
 */
#ifndef __ASSEMBLY__
struct task_struct;
#include <asm/cpufeature.h>
#include <linux/atomic.h>

struct thread_info {
	unsigned long		flags;		/* low level flags */
};

#define INIT_THREAD_INFO(tsk)			\
{						\
	.flags		= 0,			\
}

#define init_stack		(init_thread_union.stack)

#else /* !__ASSEMBLY__ */

#include <asm/asm-offsets.h>

#endif

/*
 * thread information flags
 * - these are process state flags that various assembly files
 *   may need to access
 */
#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*/
#define TIF_SYSCALL_EMU		6	/* syscall emulation active */
#define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
#define TIF_SECCOMP		8	/* secure computing */
#define TIF_USER_RETURN_NOTIFY	11	/* notify kernel of userspace return */
#define TIF_UPROBE		12	/* breakpointed or singlestepping */
#define TIF_PATCH_PENDING	13	/* pending live patching update */
#define TIF_NOCPUID		15	/* CPUID is not accessible in userland */
#define TIF_NOTSC		16	/* TSC is not accessible in userland */
#define TIF_IA32		17	/* IA32 compatibility process */
#define TIF_NOHZ		19	/* in adaptive nohz mode */
#define TIF_MEMDIE		20	/* is terminating due to OOM killer */
#define TIF_POLLING_NRFLAG	21	/* idle is polling for TIF_NEED_RESCHED */
#define TIF_IO_BITMAP		22	/* uses I/O bitmap */
#define TIF_FORCED_TF		24	/* true if TF in eflags artificially */
#define TIF_BLOCKSTEP		25	/* set when we want DEBUGCTLMSR_BTF */
#define TIF_LAZY_MMU_UPDATES	27	/* task is updating the mmu lazily */
#define TIF_SYSCALL_TRACEPOINT	28	/* syscall tracepoint instrumentation */
#define TIF_ADDR32		29	/* 32-bit address space on 64 bits */
#define TIF_X32			30	/* 32-bit native x86-64 binary */
#define TIF_FSCHECK		31	/* Check FS is USER_DS on return */

#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_SINGLESTEP		(1 << TIF_SINGLESTEP)
#define _TIF_SYSCALL_EMU	(1 << TIF_SYSCALL_EMU)
#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
#define _TIF_SECCOMP		(1 << TIF_SECCOMP)
#define _TIF_USER_RETURN_NOTIFY	(1 << TIF_USER_RETURN_NOTIFY)
#define _TIF_UPROBE		(1 << TIF_UPROBE)
#define _TIF_PATCH_PENDING	(1 << TIF_PATCH_PENDING)
#define _TIF_NOCPUID		(1 << TIF_NOCPUID)
#define _TIF_NOTSC		(1 << TIF_NOTSC)
#define _TIF_IA32		(1 << TIF_IA32)
#define _TIF_NOHZ		(1 << TIF_NOHZ)
#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
#define _TIF_IO_BITMAP		(1 << TIF_IO_BITMAP)
#define _TIF_FORCED_TF		(1 << TIF_FORCED_TF)
#define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
#define _TIF_LAZY_MMU_UPDATES	(1 << TIF_LAZY_MMU_UPDATES)
#define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
#define _TIF_ADDR32		(1 << TIF_ADDR32)
#define _TIF_X32		(1 << TIF_X32)
#define _TIF_FSCHECK		(1 << TIF_FSCHECK)

/*
 * work to do in syscall_trace_enter().  Also includes TIF_NOHZ for
 * enter_from_user_mode()
 */
#define _TIF_WORK_SYSCALL_ENTRY	\
	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |	\
	 _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT |	\
	 _TIF_NOHZ)

/* work to do on any return to user space */
#define _TIF_ALLWORK_MASK						\
	(_TIF_SYSCALL_TRACE | _TIF_NOTIFY_RESUME | _TIF_SIGPENDING |	\
	 _TIF_NEED_RESCHED | _TIF_SINGLESTEP | _TIF_SYSCALL_EMU |	\
	 _TIF_SYSCALL_AUDIT | _TIF_USER_RETURN_NOTIFY | _TIF_UPROBE |	\
	 _TIF_PATCH_PENDING | _TIF_NOHZ | _TIF_SYSCALL_TRACEPOINT |	\
	 _TIF_FSCHECK)

/* flags to check in __switch_to() */
#define _TIF_WORK_CTXSW							\
	(_TIF_IO_BITMAP|_TIF_NOCPUID|_TIF_NOTSC|_TIF_BLOCKSTEP)

#define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)

#define STACK_WARN		(THREAD_SIZE/8)

/*
 * macros/functions for gaining access to the thread information structure
 *
 * preempt_count needs to be 1 initially, until the scheduler is functional.
 */
#ifndef __ASSEMBLY__

/*
 * Walks up the stack frames to make sure that the specified object is
 * entirely contained by a single stack frame.
 *
 * Returns:
 *	GOOD_FRAME	if within a frame
 *	BAD_STACK	if placed across a frame boundary (or outside stack)
 *	NOT_STACK	unable to determine (no frame pointers, etc)
 */
static inline int arch_within_stack_frames(const void * const stack,
					   const void * const stackend,
					   const void *obj, unsigned long len)
{
#if defined(CONFIG_FRAME_POINTER)
	const void *frame = NULL;
	const void *oldframe;

	oldframe = __builtin_frame_address(1);
	if (oldframe)
		frame = __builtin_frame_address(2);
	/*
	 * low ----------------------------------------------> high
	 * [saved bp][saved ip][args][local vars][saved bp][saved ip]
	 *                     ^----------------^
	 *               allow copies only within here
	 */
	while (stack <= frame && frame < stackend) {
		/*
		 * If obj + len extends past the last frame, this
		 * check won't pass and the next frame will be 0,
		 * causing us to bail out and correctly report
		 * the copy as invalid.
		 */
		if (obj + len <= frame)
			return obj >= oldframe + 2 * sizeof(void *) ?
				GOOD_FRAME : BAD_STACK;
		oldframe = frame;
		frame = *(const void * const *)frame;
	}
	return BAD_STACK;
#else
	return NOT_STACK;
#endif
}

#else /* !__ASSEMBLY__ */

#ifdef CONFIG_X86_64
# define cpu_current_top_of_stack (cpu_tss + TSS_sp1)
#endif

#endif

#ifdef CONFIG_COMPAT
#define TS_I386_REGS_POKED	0x0004	/* regs poked by 32-bit ptracer */
#endif
#ifndef __ASSEMBLY__

#ifdef CONFIG_X86_32
#define in_ia32_syscall() true
#else
#define in_ia32_syscall() (IS_ENABLED(CONFIG_IA32_EMULATION) && \
			   current->thread.status & TS_COMPAT)
#endif

/*
 * Force syscall return via IRET by making it look as if there was
 * some work pending. IRET is our most capable (but slowest) syscall
 * return path, which is able to restore modified SS, CS and certain
 * EFLAGS values that other (fast) syscall return instructions
 * are not able to restore properly.
 */
#define force_iret() set_thread_flag(TIF_NOTIFY_RESUME)

extern void arch_task_cache_init(void);
extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
extern void arch_release_task_struct(struct task_struct *tsk);
extern void arch_setup_new_exec(void);
#define arch_setup_new_exec arch_setup_new_exec
#endif	/* !__ASSEMBLY__ */

#endif /* _ASM_X86_THREAD_INFO_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
2052e8d4 CL	2	/* thread_info.h: low-level thread information
	3	*
	4	* Copyright (C) 2002 David Howells (dhowells@redhat.com)
	5	* - Incorporating suggestions made by Linus Torvalds and Dave Miller
	6	*/
	7
1965aae3 PA	8	#ifndef _ASM_X86_THREAD_INFO_H
1965aae3 PA	9	#define _ASM_X86_THREAD_INFO_H
2052e8d4	10
2052e8d4 CL	11	#include <linux/compiler.h>
2052e8d4 CL	12	#include <asm/page.h>
198d208d	13	#include <asm/percpu.h>
12a638e1 CL	14	#include <asm/types.h>
12a638e1 CL	15
3ee4298f AL	16	/*
	17	* TOP_OF_KERNEL_STACK_PADDING is a number of unused bytes that we
	18	* reserve at the top of the kernel stack. We do it because of a nasty
	19	* 32-bit corner case. On x86_32, the hardware stack frame is
	20	* variable-length. Except for vm86 mode, struct pt_regs assumes a
	21	* maximum-length frame. If we enter from CPL 0, the top 8 bytes of
	22	* pt_regs don't actually exist. Ordinarily this doesn't matter, but it
	23	* does in at least one case:
	24	*
	25	* If we take an NMI early enough in SYSENTER, then we can end up with
	26	* pt_regs that extends above sp0. On the way out, in the espfix code,
	27	* we can read the saved SS value, but that value will be above sp0.
	28	* Without this offset, that can result in a page fault. (We are
	29	* careful that, in this case, the value we read doesn't matter.)
	30	*
5ed92a8a BG	31	* In vm86 mode, the hardware frame is much longer still, so add 16
5ed92a8a BG	32	* bytes to make room for the real-mode segments.
3ee4298f AL	33	*
	34	* x86_64 has a fixed-length stack frame.
	35	*/
	36	#ifdef CONFIG_X86_32
5ed92a8a BG	37	# ifdef CONFIG_VM86
	38	# define TOP_OF_KERNEL_STACK_PADDING 16
	39	# else
	40	# define TOP_OF_KERNEL_STACK_PADDING 8
	41	# endif
3ee4298f AL	42	#else
	43	# define TOP_OF_KERNEL_STACK_PADDING 0
	44	#endif
	45
2052e8d4 CL	46	/*
	47	* low level task data that entry.S needs immediate access to
	48	* - this struct should fit entirely inside of one cache line
	49	* - this struct shares the supervisor stack pages
2052e8d4 CL	50	*/
2052e8d4 CL	51	#ifndef __ASSEMBLY__
006c484b	52	struct task_struct;
cd4d09ec	53	#include <asm/cpufeature.h>
60063497	54	#include <linux/atomic.h>
2052e8d4	55
c8061485 HC	56	struct thread_info {
	57	unsigned long flags; /* low level flags */
	58	};
	59
	60	#define INIT_THREAD_INFO(tsk) \
	61	{ \
	62	.flags = 0, \
	63	}
	64
3351cc03 CL	65	#define init_stack (init_thread_union.stack)
3351cc03 CL	66
2052e8d4 CL	67	#else /* !__ASSEMBLY__ */
	68
	69	#include <asm/asm-offsets.h>
	70
	71	#endif
	72
e57549b0 CL	73	/*
	74	* thread information flags
	75	* - these are process state flags that various assembly files
	76	* may need to access
e57549b0 CL	77	*/
e57549b0 CL	78	#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
59e52130	79	#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
e57549b0 CL	80	#define TIF_SIGPENDING 2 /* signal pending */
	81	#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
	82	#define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/
e57549b0	83	#define TIF_SYSCALL_EMU 6 /* syscall emulation active */
e57549b0 CL	84	#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
e57549b0 CL	85	#define TIF_SECCOMP 8 /* secure computing */
7c68af6e	86	#define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */
0326f5a9	87	#define TIF_UPROBE 12 /* breakpointed or singlestepping */
afb94c9e	88	#define TIF_PATCH_PENDING 13 /* pending live patching update */
e9ea1e7f	89	#define TIF_NOCPUID 15 /* CPUID is not accessible in userland */
e57549b0	90	#define TIF_NOTSC 16 /* TSC is not accessible in userland */
6bd33008	91	#define TIF_IA32 17 /* IA32 compatibility process */
bf5a3c13	92	#define TIF_NOHZ 19 /* in adaptive nohz mode */
0ddc9324	93	#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
f80c5b39	94	#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
e57549b0	95	#define TIF_IO_BITMAP 22 /* uses I/O bitmap */
e57549b0	96	#define TIF_FORCED_TF 24 /* true if TF in eflags artificially */
ea8e61b7	97	#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */
b407fc57	98	#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */
66700001	99	#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
6bd33008	100	#define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
bb212724	101	#define TIF_X32 30 /* 32-bit native x86-64 binary */
5ea0727b	102	#define TIF_FSCHECK 31 /* Check FS is USER_DS on return */
e57549b0 CL	103
e57549b0 CL	104	#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
59e52130	105	#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
e57549b0	106	#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
e57549b0	107	#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
3a404842	108	#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
e57549b0	109	#define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU)
e57549b0 CL	110	#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
e57549b0 CL	111	#define _TIF_SECCOMP (1 << TIF_SECCOMP)
7c68af6e	112	#define _TIF_USER_RETURN_NOTIFY (1 << TIF_USER_RETURN_NOTIFY)
0326f5a9	113	#define _TIF_UPROBE (1 << TIF_UPROBE)
afb94c9e	114	#define _TIF_PATCH_PENDING (1 << TIF_PATCH_PENDING)
e9ea1e7f	115	#define _TIF_NOCPUID (1 << TIF_NOCPUID)
e57549b0 CL	116	#define _TIF_NOTSC (1 << TIF_NOTSC)
e57549b0 CL	117	#define _TIF_IA32 (1 << TIF_IA32)
bf5a3c13	118	#define _TIF_NOHZ (1 << TIF_NOHZ)
f80c5b39	119	#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
e57549b0	120	#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)
e57549b0	121	#define _TIF_FORCED_TF (1 << TIF_FORCED_TF)
ea8e61b7	122	#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
b407fc57	123	#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)
66700001	124	#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
6bd33008	125	#define _TIF_ADDR32 (1 << TIF_ADDR32)
bb212724	126	#define _TIF_X32 (1 << TIF_X32)
5ea0727b	127	#define _TIF_FSCHECK (1 << TIF_FSCHECK)
e57549b0	128
9999c8c0 AL	129	/*
	130	* work to do in syscall_trace_enter(). Also includes TIF_NOHZ for
	131	* enter_from_user_mode()
	132	*/
d4d67150	133	#define _TIF_WORK_SYSCALL_ENTRY \
66700001	134	(_TIF_SYSCALL_TRACE \| _TIF_SYSCALL_EMU \| _TIF_SYSCALL_AUDIT \| \
392a6254	135	_TIF_SECCOMP \| _TIF_SYSCALL_TRACEPOINT \| \
bf5a3c13	136	_TIF_NOHZ)
d4d67150	137
00c1bb13	138	/* work to do on any return to user space */
66700001	139	#define _TIF_ALLWORK_MASK \
3a404842 JP	140	(_TIF_SYSCALL_TRACE \| _TIF_NOTIFY_RESUME \| _TIF_SIGPENDING \| \
	141	_TIF_NEED_RESCHED \| _TIF_SINGLESTEP \| _TIF_SYSCALL_EMU \| \
	142	_TIF_SYSCALL_AUDIT \| _TIF_USER_RETURN_NOTIFY \| _TIF_UPROBE \| \
5ea0727b TG	143	_TIF_PATCH_PENDING \| _TIF_NOHZ \| _TIF_SYSCALL_TRACEPOINT \| \
5ea0727b TG	144	_TIF_FSCHECK)
00c1bb13	145
00c1bb13 CL	146	/* flags to check in __switch_to() */
00c1bb13 CL	147	#define _TIF_WORK_CTXSW \
e9ea1e7f	148	(_TIF_IO_BITMAP\|_TIF_NOCPUID\|_TIF_NOTSC\|_TIF_BLOCKSTEP)
00c1bb13	149
7c68af6e	150	#define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW\|_TIF_USER_RETURN_NOTIFY)
37f07655	151	#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
00c1bb13	152
198d208d	153	#define STACK_WARN (THREAD_SIZE/8)
b84200b3	154
2052e8d4 CL	155	/*
	156	* macros/functions for gaining access to the thread information structure
	157	*
	158	* preempt_count needs to be 1 initially, until the scheduler is functional.
	159	*/
	160	#ifndef __ASSEMBLY__
	161
0f60a8ef KC	162	/*
	163	* Walks up the stack frames to make sure that the specified object is
	164	* entirely contained by a single stack frame.
	165	*
	166	* Returns:
96dc4f9f S	167	* GOOD_FRAME if within a frame
	168	* BAD_STACK if placed across a frame boundary (or outside stack)
	169	* NOT_STACK unable to determine (no frame pointers, etc)
0f60a8ef KC	170	*/
	171	static inline int arch_within_stack_frames(const void * const stack,
	172	const void * const stackend,
	173	const void *obj, unsigned long len)
	174	{
	175	#if defined(CONFIG_FRAME_POINTER)
	176	const void *frame = NULL;
	177	const void *oldframe;
	178
	179	oldframe = __builtin_frame_address(1);
	180	if (oldframe)
	181	frame = __builtin_frame_address(2);
	182	/*
	183	* low ----------------------------------------------> high
	184	* [saved bp][saved ip][args][local vars][saved bp][saved ip]
	185	* ^----------------^
	186	* allow copies only within here
	187	*/
	188	while (stack <= frame && frame < stackend) {
	189	/*
	190	* If obj + len extends past the last frame, this
	191	* check won't pass and the next frame will be 0,
	192	* causing us to bail out and correctly report
	193	* the copy as invalid.
	194	*/
	195	if (obj + len <= frame)
96dc4f9f S	196	return obj >= oldframe + 2 * sizeof(void *) ?
96dc4f9f S	197	GOOD_FRAME : BAD_STACK;
0f60a8ef KC	198	oldframe = frame;
	199	frame = (const void const *)frame;
	200	}
96dc4f9f	201	return BAD_STACK;
0f60a8ef	202	#else
96dc4f9f	203	return NOT_STACK;
0f60a8ef KC	204	#endif
	205	}
	206
2052e8d4 CL	207	#else /* !__ASSEMBLY__ */
2052e8d4 CL	208
3a23208e	209	#ifdef CONFIG_X86_64
9aaefe7b	210	# define cpu_current_top_of_stack (cpu_tss + TSS_sp1)
3a23208e DV	211	#endif
3a23208e DV	212
2052e8d4 CL	213	#endif
2052e8d4 CL	214
609c19a3 AL	215	#ifdef CONFIG_COMPAT
	216	#define TS_I386_REGS_POKED 0x0004 /* regs poked by 32-bit ptracer */
	217	#endif
8a6c160a	218	#ifndef __ASSEMBLY__
ef334a20	219
ef334a20	220	#ifdef CONFIG_X86_32
b9d989c7 AL	221	#define in_ia32_syscall() true
	222	#else
	223	#define in_ia32_syscall() (IS_ENABLED(CONFIG_IA32_EMULATION) && \
	224	current->thread.status & TS_COMPAT)
ef334a20	225	#endif
1daeaa31 BG	226
	227	/*
	228	* Force syscall return via IRET by making it look as if there was
	229	* some work pending. IRET is our most capable (but slowest) syscall
	230	* return path, which is able to restore modified SS, CS and certain
	231	* EFLAGS values that other (fast) syscall return instructions
	232	* are not able to restore properly.
	233	*/
	234	#define force_iret() set_thread_flag(TIF_NOTIFY_RESUME)
	235
61c4628b	236	extern void arch_task_cache_init(void);
61c4628b	237	extern int arch_dup_task_struct(struct task_struct dst, struct task_struct src);
38e7c572	238	extern void arch_release_task_struct(struct task_struct *tsk);
e9ea1e7f KH	239	extern void arch_setup_new_exec(void);
e9ea1e7f KH	240	#define arch_setup_new_exec arch_setup_new_exec
5f870a3f BP	241	#endif /* !__ASSEMBLY__ */
5f870a3f BP	242
1965aae3	243	#endif /* _ASM_X86_THREAD_INFO_H */