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

Data Structures
struct	thread_info

Macros
#define	INIT_THREAD_INFO(tsk)

#define	init_thread_info (init_thread_union.thread_info)

#define	init_stack (init_thread_union.stack)

#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_MCE_NOTIFY 10 /* notify userspace of an MCE */

#define	TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */

#define	TIF_UPROBE 12 /* breakpointed or singlestepping */

#define	TIF_NOTSC 16 /* TSC is not accessible in userland */

#define	TIF_IA32 17 /* IA32 compatibility process */

#define	TIF_FORK 18 /* ret_from_fork */

#define	TIF_NOHZ 19 /* in adaptive nohz mode */

#define	TIF_MEMDIE 20 /* is terminating due to OOM killer */

#define	TIF_DEBUG 21 /* uses debug registers */

#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_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)

#define	_TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU)

#define	_TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)

#define	_TIF_SECCOMP (1 << TIF_SECCOMP)

#define	_TIF_MCE_NOTIFY (1 << TIF_MCE_NOTIFY)

#define	_TIF_USER_RETURN_NOTIFY (1 << TIF_USER_RETURN_NOTIFY)

#define	_TIF_UPROBE (1 << TIF_UPROBE)

#define	_TIF_NOTSC (1 << TIF_NOTSC)

#define	_TIF_IA32 (1 << TIF_IA32)

#define	_TIF_FORK (1 << TIF_FORK)

#define	_TIF_NOHZ (1 << TIF_NOHZ)

#define	_TIF_DEBUG (1 << TIF_DEBUG)

#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_WORK_SYSCALL_ENTRY

#define	_TIF_WORK_SYSCALL_EXIT

#define	_TIF_WORK_MASK

#define	_TIF_ALLWORK_MASK

#define	_TIF_DO_NOTIFY_MASK

#define	_TIF_WORK_CTXSW (_TIF_IO_BITMAP\|_TIF_NOTSC\|_TIF_BLOCKSTEP)

#define	_TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW\|_TIF_USER_RETURN_NOTIFY)

#define	_TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW\|_TIF_DEBUG)

#define	PREEMPT_ACTIVE 0x10000000

#define	KERNEL_STACK_OFFSET (5*8)

#define	TS_COMPAT 0x0002 /* 32bit syscall active (64BIT)*/

#define	TS_POLLING

#define	TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */

#define	tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)

#define	HAVE_SET_RESTORE_SIGMASK 1

Functions
	DECLARE_PER_CPU (unsigned long, kernel_stack)

void	arch_task_cache_init (void)

int	arch_dup_task_struct (struct task_struct dst, struct task_struct src)

void	arch_release_task_struct (struct task_struct *tsk)

Variables
struct thread_info	__attribute__

Macro Definition Documentation

#define _TIF_ADDR32 (1 << TIF_ADDR32)

Definition at line 123 of file thread_info.h.

#define _TIF_ALLWORK_MASK

Value:

((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT | \

_TIF_NOHZ)

Definition at line 144 of file thread_info.h.

#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)

Definition at line 120 of file thread_info.h.

#define _TIF_DEBUG (1 << TIF_DEBUG)

Definition at line 117 of file thread_info.h.

#define _TIF_DO_NOTIFY_MASK

Value:

(_TIF_SIGPENDING | _TIF_MCE_NOTIFY | _TIF_NOTIFY_RESUME | \

_TIF_USER_RETURN_NOTIFY)

Definition at line 149 of file thread_info.h.

#define _TIF_FORCED_TF (1 << TIF_FORCED_TF)

Definition at line 119 of file thread_info.h.

#define _TIF_FORK (1 << TIF_FORK)

Definition at line 115 of file thread_info.h.

#define _TIF_IA32 (1 << TIF_IA32)

Definition at line 114 of file thread_info.h.

#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)

Definition at line 118 of file thread_info.h.

#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)

Definition at line 121 of file thread_info.h.

#define _TIF_MCE_NOTIFY (1 << TIF_MCE_NOTIFY)

Definition at line 110 of file thread_info.h.

#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)

Definition at line 106 of file thread_info.h.

#define _TIF_NOHZ (1 << TIF_NOHZ)

Definition at line 116 of file thread_info.h.

#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)

Definition at line 103 of file thread_info.h.

#define _TIF_NOTSC (1 << TIF_NOTSC)

Definition at line 113 of file thread_info.h.

#define _TIF_SECCOMP (1 << TIF_SECCOMP)

Definition at line 109 of file thread_info.h.

#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)

Definition at line 104 of file thread_info.h.

#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)

Definition at line 105 of file thread_info.h.

#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)

Definition at line 108 of file thread_info.h.

#define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU)

Definition at line 107 of file thread_info.h.

#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)

Definition at line 102 of file thread_info.h.

#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)

Definition at line 122 of file thread_info.h.

#define _TIF_UPROBE (1 << TIF_UPROBE)

Definition at line 112 of file thread_info.h.

#define _TIF_USER_RETURN_NOTIFY (1 << TIF_USER_RETURN_NOTIFY)

Definition at line 111 of file thread_info.h.

#define _TIF_WORK_CTXSW (_TIF_IO_BITMAP|_TIF_NOTSC|_TIF_BLOCKSTEP)

Definition at line 154 of file thread_info.h.

#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW|_TIF_DEBUG)

Definition at line 158 of file thread_info.h.

#define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)

Definition at line 157 of file thread_info.h.

#define _TIF_WORK_MASK

Value:

(0x0000FFFF &                           \
     ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|           \
       _TIF_SINGLESTEP|_TIF_SECCOMP|_TIF_SYSCALL_EMU))

Definition at line 138 of file thread_info.h.

#define _TIF_WORK_SYSCALL_ENTRY

Value:

(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT |   \
     _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT | \
     _TIF_NOHZ)

Definition at line 127 of file thread_info.h.

#define _TIF_WORK_SYSCALL_EXIT

Value:

(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \

_TIF_SYSCALL_TRACEPOINT | _TIF_NOHZ)

Definition at line 133 of file thread_info.h.

#define _TIF_X32 (1 << TIF_X32)

Definition at line 124 of file thread_info.h.

#define HAVE_SET_RESTORE_SIGMASK 1

Definition at line 247 of file thread_info.h.

#define init_stack (init_thread_union.stack)

Definition at line 61 of file thread_info.h.

#define INIT_THREAD_INFO ( tsk )

Value:

{                       \
    .task       = &tsk,         \
    .exec_domain    = &default_exec_domain, \
    .flags      = 0,            \
    .cpu        = 0,            \
    .preempt_count  = INIT_PREEMPT_COUNT,   \
    .addr_limit = KERNEL_DS,        \
    .restart_block = {          \
        .fn = do_no_restart_syscall,    \
    },                  \
}

Definition at line 47 of file thread_info.h.

#define init_thread_info (init_thread_union.thread_info)

Definition at line 60 of file thread_info.h.

#define KERNEL_STACK_OFFSET (5*8)

Definition at line 199 of file thread_info.h.

#define PREEMPT_ACTIVE 0x10000000

Definition at line 160 of file thread_info.h.

#define TIF_ADDR32 29 /* 32-bit address space on 64 bits */

Definition at line 99 of file thread_info.h.

#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */

Definition at line 96 of file thread_info.h.

#define TIF_DEBUG 21 /* uses debug registers */

Definition at line 93 of file thread_info.h.

#define TIF_FORCED_TF 24 /* true if TF in eflags artificially */

Definition at line 95 of file thread_info.h.

#define TIF_FORK 18 /* ret_from_fork */

Definition at line 90 of file thread_info.h.

#define TIF_IA32 17 /* IA32 compatibility process */

Definition at line 89 of file thread_info.h.

#define TIF_IO_BITMAP 22 /* uses I/O bitmap */

Definition at line 94 of file thread_info.h.

#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */

Definition at line 97 of file thread_info.h.

#define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */

Definition at line 85 of file thread_info.h.

#define TIF_MEMDIE 20 /* is terminating due to OOM killer */

Definition at line 92 of file thread_info.h.

#define TIF_NEED_RESCHED 3 /* rescheduling necessary */

Definition at line 80 of file thread_info.h.

#define TIF_NOHZ 19 /* in adaptive nohz mode */

Definition at line 91 of file thread_info.h.

#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */

Definition at line 78 of file thread_info.h.

#define TIF_NOTSC 16 /* TSC is not accessible in userland */

Definition at line 88 of file thread_info.h.

#define TIF_SECCOMP 8 /* secure computing */

Definition at line 84 of file thread_info.h.

#define TIF_SIGPENDING 2 /* signal pending */

Definition at line 79 of file thread_info.h.

#define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/

Definition at line 81 of file thread_info.h.

#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */

Definition at line 83 of file thread_info.h.

#define TIF_SYSCALL_EMU 6 /* syscall emulation active */

Definition at line 82 of file thread_info.h.

#define TIF_SYSCALL_TRACE 0 /* syscall trace active */

Definition at line 77 of file thread_info.h.

#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */

Definition at line 98 of file thread_info.h.

#define TIF_UPROBE 12 /* breakpointed or singlestepping */

Definition at line 87 of file thread_info.h.

#define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */

Definition at line 86 of file thread_info.h.

#define TIF_X32 30 /* 32-bit native x86-64 binary */

Definition at line 100 of file thread_info.h.

#define TS_COMPAT 0x0002 /* 32bit syscall active (64BIT)*/

Definition at line 240 of file thread_info.h.

#define TS_POLLING

Value:

0x0004 /* idle task polling need_resched,

skip sending interrupt */

Definition at line 241 of file thread_info.h.

#define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */

Definition at line 242 of file thread_info.h.

#define tsk_is_polling ( t ) (task_thread_info(t)->status & TS_POLLING)

Definition at line 244 of file thread_info.h.

Function Documentation

int arch_dup_task_struct	(	struct task_struct *	dst,
		struct task_struct *	src
	)

Definition at line 227 of file process.c.

void arch_release_task_struct ( struct task_struct * tsk )

Definition at line 47 of file process.c.

void arch_task_cache_init ( void )

Definition at line 52 of file process.c.

DECLARE_PER_CPU	(	unsigned	long,
		kernel_stack
	)

Variable Documentation

struct thread_info __attribute__

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation