#include "tls-simple.h"
Go to the source code of this file.
Defines | |
#define | _LOWLEVELLOCK_H 1 |
#define | LOCK_INSTR "lock;" |
#define | SYS_futex 240 |
#define | FUTEX_WAIT 0 |
#define | FUTEX_WAKE 1 |
#define | FUTEX_LOCK_PI 6 |
#define | FUTEX_UNLOCK_PI 7 |
#define | FUTEX_TRYLOCK_PI 8 |
#define | LLL_MUTEX_LOCK_INITIALIZER (0) |
#define | LLL_MUTEX_LOCK_INITIALIZER_LOCKED (1) |
#define | LLL_MUTEX_LOCK_INITIALIZER_WAITERS (2) |
#define | LLL_EBX_LOAD |
#define | LLL_EBX_REG "b" |
#define | LLL_ENTER_KERNEL "int $0x80\n\t" |
#define | BUSY_WAIT_NOP asm ("rep; nop") |
#define | LLL_STUB_UNWIND_INFO_START |
#define | LLL_STUB_UNWIND_INFO_END |
#define | LLL_STUB_UNWIND_INFO_3 |
#define | LLL_STUB_UNWIND_INFO_4 |
#define | lll_futex_wait(futex, val) |
#define | lll_futex_timed_wait(futex, val, timeout) |
#define | lll_futex_wake(futex, nr) |
#define | lll_mutex_trylock(futex) |
#define | lll_robust_mutex_trylock(futex, id) |
#define | lll_mutex_cond_trylock(futex) |
#define | lll_mutex_lock(futex) |
#define | lll_robust_mutex_lock(futex, id) |
#define | lll_mutex_cond_lock(futex) |
#define | lll_robust_mutex_cond_lock(futex, id) |
#define | lll_mutex_timedlock(futex, timeout) |
#define | lll_robust_mutex_timedlock(futex, timeout, id) |
#define | lll_mutex_unlock(futex) |
#define | lll_robust_mutex_unlock(futex) |
#define | lll_robust_mutex_dead(futex) |
#define | lll_futex_wake(futex, nr) |
#define | lll_mutex_islocked(futex) (futex != 0) |
#define | LLL_LOCK_INITIALIZER (0) |
#define | LLL_LOCK_INITIALIZER_LOCKED (1) |
#define | lll_trylock(futex) |
#define | lll_lock(futex) |
#define | lll_unlock(futex) |
#define | lll_islocked(futex) (futex != LLL_LOCK_INITIALIZER) |
#define | lll_wait_tid(tid) |
#define | lll_timedwait_tid(tid, abstime) |
#define | lll_cond_wait(cond) __lll_cond_wait (cond) |
#define | lll_cond_timedwait(cond, abstime) __lll_cond_timedwait (cond, abstime) |
#define | lll_cond_wake(cond) __lll_cond_wake (cond) |
#define | lll_cond_broadcast(cond) __lll_cond_broadcast (cond) |
Typedefs | |
typedef int | lll_lock_t |
Functions | |
int | __lll_mutex_lock_wait (int val, int *__futex) __attribute((regparm(2))) |
int | __lll_mutex_timedlock_wait (int val, int *__futex, const struct timespec *abstime) __attribute((regparm(3))) |
int | __lll_mutex_unlock_wake (int *__futex) __attribute((regparm(1))) |
int | __lll_lock_wait (int val, int *__futex) __attribute((regparm(2))) |
int | __lll_unlock_wake (int *__futex) __attribute((regparm(1))) |
int | lll_unlock_wake_cb (int *__futex) |
int | __lll_timedwait_tid (int *tid, const struct timespec *abstime) __attribute__((regparm(2))) |
void | __lll_cond_wait (pthread_cond_t *cond) __attribute((regparm(1))) |
int | __lll_cond_timedwait (pthread_cond_t *cond, const struct timespec *abstime) __attribute((regparm(2))) |
void | __lll_cond_wake (pthread_cond_t *cond) __attribute((regparm(1))) |
void | __lll_cond_broadcast (pthread_cond_t *cond) __attribute((regparm(1))) |
Definition in file lowlevellock.h.
#define lll_futex_timed_wait | ( | futex, | |||
val, | |||||
timeout | ) |
Value:
({ \ int __status; \ register __typeof (val) _val asm ("edx") = (val); \ __asm __volatile (LLL_EBX_LOAD \ LLL_ENTER_KERNEL \ LLL_EBX_LOAD \ : "=a" (__status) \ : "0" (SYS_futex), LLL_EBX_REG (futex), "S" (timeout), \ "c" (FUTEX_WAIT), "d" (_val), \ "i" (offsetof (tcbhead_t, sysinfo)) \ : "memory"); \ __status; \ })
Definition at line 171 of file lowlevellock.h.
#define lll_futex_wait | ( | futex, | |||
val | ) |
Value:
({ \ int __status; \ register __typeof (val) _val asm ("edx") = (val); \ __asm __volatile (LLL_EBX_LOAD \ LLL_ENTER_KERNEL \ LLL_EBX_LOAD \ : "=a" (__status) \ : "0" (SYS_futex), LLL_EBX_REG (futex), "S" (0), \ "c" (FUTEX_WAIT), "d" (_val), \ "i" (offsetof (tcbhead_t, sysinfo)) \ : "memory"); \ __status; \ })
Definition at line 155 of file lowlevellock.h.
Referenced by futex_wait().
#define lll_futex_wake | ( | futex, | |||
nr | ) |
Value:
do { \ int __ignore; \ register __typeof (nr) _nr asm ("edx") = (nr); \ __asm __volatile (LLL_EBX_LOAD \ LLL_ENTER_KERNEL \ LLL_EBX_LOAD \ : "=a" (__ignore) \ : "0" (SYS_futex), LLL_EBX_REG (futex), \ "c" (FUTEX_WAKE), "d" (_nr), \ "i" (0) /* phony, to align next arg's number */, \ "i" (offsetof (tcbhead_t, sysinfo))); \ } while (0)
Definition at line 425 of file lowlevellock.h.
#define lll_futex_wake | ( | futex, | |||
nr | ) |
Value:
do { \ int __ignore; \ register __typeof (nr) _nr asm ("edx") = (nr); \ __asm __volatile (LLL_EBX_LOAD \ LLL_ENTER_KERNEL \ LLL_EBX_LOAD \ : "=a" (__ignore) \ : "0" (SYS_futex), LLL_EBX_REG (futex), \ "c" (FUTEX_WAKE), "d" (_nr), \ "i" (0) /* phony, to align next arg's number */, \ "i" (offsetof (tcbhead_t, sysinfo))); \ } while (0)
Definition at line 425 of file lowlevellock.h.
Referenced by futex_wake().
#define lll_lock | ( | futex | ) |
Value:
(void) ({ int ignore1, ignore2; \ __asm __volatile ("cmpl $0, %%gs:%P6\n\t" \ "je 0f\n\t" \ "lock\n" \ "0:\tcmpxchgl %1, %2\n\t" \ "jnz _L_lock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_lock_%=,@function\n" \ "_L_lock_%=:\n" \ "1:\tleal %2, %%ecx\n" \ "2:\tcall __lll_mutex_lock_wait\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_lock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ : "0" (0), "1" (1), "m" (futex), \ "i" (offsetof (tcbhead_t, multiple_threads)) \ : "memory"); })
Definition at line 493 of file lowlevellock.h.
#define lll_mutex_cond_lock | ( | futex | ) |
Value:
(void) ({ int ignore1, ignore2; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ "jnz _L_mutex_cond_lock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_cond_lock_%=,@function\n" \ "_L_mutex_cond_lock_%=:\n" \ "1:\tleal %2, %%ecx\n" \ "2:\tcall __lll_mutex_lock_wait\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_mutex_cond_lock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ : "0" (0), "1" (2), "m" (futex) \ : "memory"); })
Definition at line 290 of file lowlevellock.h.
#define lll_mutex_cond_trylock | ( | futex | ) |
Value:
({ int ret; \ __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ : "r" (LLL_MUTEX_LOCK_INITIALIZER_WAITERS), \ "m" (futex), "0" (LLL_MUTEX_LOCK_INITIALIZER) \ : "memory"); \ ret; })
Definition at line 239 of file lowlevellock.h.
#define lll_mutex_lock | ( | futex | ) |
Value:
(void) ({ int ignore1, ignore2; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ "jnz _L_mutex_lock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_lock_%=,@function\n" \ "_L_mutex_lock_%=:\n" \ "1:\tleal %2, %%ecx\n" \ "2:\tcall __lll_mutex_lock_wait\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_mutex_lock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=a" (ignore1), "=c" (ignore2), "=m" (futex) \ : "0" (0), "1" (1), "m" (futex) \ : "memory"); })
Definition at line 249 of file lowlevellock.h.
#define lll_mutex_timedlock | ( | futex, | |||
timeout | ) |
Value:
({ int result, ignore1, ignore2; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \ "jnz _L_mutex_timedlock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_timedlock_%=,@function\n" \ "_L_mutex_timedlock_%=:\n" \ "1:\tleal %3, %%ecx\n" \ "0:\tmovl %7, %%edx\n" \ "2:\tcall __lll_mutex_timedlock_wait\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_mutex_timedlock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_4 \ "18:" \ : "=a" (result), "=c" (ignore1), "=&d" (ignore2), \ "=m" (futex) \ : "0" (0), "1" (1), "m" (futex), "m" (timeout) \ : "memory"); \ result; })
Definition at line 329 of file lowlevellock.h.
#define lll_mutex_trylock | ( | futex | ) |
Value:
({ int ret; \ __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ "0" (LLL_MUTEX_LOCK_INITIALIZER) \ : "memory"); \ ret; })
Definition at line 219 of file lowlevellock.h.
#define lll_mutex_unlock | ( | futex | ) |
Value:
(void) ({ int ignore; \ __asm __volatile (LOCK_INSTR "subl $1, %0\n\t" \ "jne _L_mutex_unlock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_mutex_unlock_%=,@function\n" \ "_L_mutex_unlock_%=:\n" \ "1:\tleal %0, %%eax\n" \ "2:\tcall __lll_mutex_unlock_wake\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_mutex_unlock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=m" (futex), "=&a" (ignore) \ : "m" (futex) \ : "memory"); })
Definition at line 373 of file lowlevellock.h.
#define lll_robust_mutex_cond_lock | ( | futex, | |||
id | ) |
Value:
({ int result, ignore; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ "jnz _L_robust_mutex_cond_lock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_robust_mutex_cond_lock_%=,@function\n" \ "_L_robust_mutex_cond_lock_%=:\n" \ "1:\tleal %2, %%ecx\n" \ "2:\tcall __lll_robust_mutex_lock_wait\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_robust_mutex_cond_lock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=a" (result), "=c" (ignore), "=m" (futex) \ : "0" (0), "1" (id | FUTEX_WAITERS), "m" (futex) \ : "memory"); \ result; })
Definition at line 309 of file lowlevellock.h.
#define lll_robust_mutex_dead | ( | futex | ) |
Value:
(void) ({ int __ignore; \ register int _nr asm ("edx") = 1; \ __asm __volatile (LOCK_INSTR "orl %5, (%2)\n\t" \ LLL_EBX_LOAD \ LLL_ENTER_KERNEL \ LLL_EBX_LOAD \ : "=a" (__ignore) \ : "0" (SYS_futex), LLL_EBX_REG (&(futex)), \ "c" (FUTEX_WAKE), "d" (_nr), \ "i" (FUTEX_OWNER_DIED), \ "i" (offsetof (tcbhead_t, sysinfo))); })
Definition at line 411 of file lowlevellock.h.
#define lll_robust_mutex_lock | ( | futex, | |||
id | ) |
Value:
({ int result, ignore; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %2\n\t" \ "jnz _L_robust_mutex_lock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_robust_mutex_lock_%=,@function\n" \ "_L_robust_mutex_lock_%=:\n" \ "1:\tleal %2, %%ecx\n" \ "2:\tcall __lll_robust_mutex_lock_wait\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_robust_mutex_lock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=a" (result), "=c" (ignore), "=m" (futex) \ : "0" (0), "1" (id), "m" (futex) \ : "memory"); \ result; })
Definition at line 268 of file lowlevellock.h.
#define lll_robust_mutex_timedlock | ( | futex, | |||
timeout, | |||||
id | ) |
Value:
({ int result, ignore1, ignore2; \ __asm __volatile (LOCK_INSTR "cmpxchgl %1, %3\n\t" \ "jnz _L_robust_mutex_timedlock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_robust_mutex_timedlock_%=,@function\n" \ "_L_robust_mutex_timedlock_%=:\n" \ "1:\tleal %3, %%ecx\n" \ "0:\tmovl %7, %%edx\n" \ "2:\tcall __lll_robust_mutex_timedlock_wait\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_robust_mutex_timedlock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_4 \ "18:" \ : "=a" (result), "=c" (ignore1), "=&d" (ignore2), \ "=m" (futex) \ : "0" (0), "1" (id), "m" (futex), "m" (timeout) \ : "memory"); \ result; })
Definition at line 351 of file lowlevellock.h.
#define lll_robust_mutex_trylock | ( | futex, | |||
id | ) |
Value:
({ int ret; \ __asm __volatile (LOCK_INSTR "cmpxchgl %2, %1" \ : "=a" (ret), "=m" (futex) \ : "r" (id), "m" (futex), \ "0" (LLL_MUTEX_LOCK_INITIALIZER) \ : "memory"); \ ret; })
Definition at line 229 of file lowlevellock.h.
#define lll_robust_mutex_unlock | ( | futex | ) |
Value:
(void) ({ int ignore; \ __asm __volatile (LOCK_INSTR "andl %2, %0\n\t" \ "jne _L_robust_mutex_unlock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_robust_mutex_unlock_%=,@function\n" \ "_L_robust_mutex_unlock_%=:\n\t" \ "1:\tleal %0, %%eax\n" \ "2:\tcall __lll_mutex_unlock_wake\n" \ "3:\tjmp 18f\n" \ "4:\t.size _L_robust_mutex_unlock_%=, 4b-1b\n\t"\ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=m" (futex), "=&a" (ignore) \ : "i" (FUTEX_WAITERS), "m" (futex) \ : "memory"); })
Definition at line 392 of file lowlevellock.h.
#define LLL_STUB_UNWIND_INFO_3 |
Value:
LLL_STUB_UNWIND_INFO_START \ "10:\t" ".byte 0x40 + (2b-1b) # DW_CFA_advance_loc\n\t" \ LLL_STUB_UNWIND_INFO_END
Definition at line 131 of file lowlevellock.h.
#define LLL_STUB_UNWIND_INFO_4 |
Value:
LLL_STUB_UNWIND_INFO_START \ "10:\t" ".byte 0x40 + (0b-1b) # DW_CFA_advance_loc\n\t" \ ".byte 0x16 # DW_CFA_val_expression\n\t" \ ".uleb128 0x8\n\t" \ ".uleb128 20f-19f\n" \ "19:\t" ".byte 0x78 # DW_OP_breg8\n\t" \ ".sleb128 3b-0b\n" \ "20:\t" ".byte 0x40 + (2b-0b) # DW_CFA_advance_loc\n\t" \ LLL_STUB_UNWIND_INFO_END
Definition at line 143 of file lowlevellock.h.
#define LLL_STUB_UNWIND_INFO_END |
Value:
".byte 0x16 # DW_CFA_val_expression\n\t" \ ".uleb128 0x8\n\t" \ ".uleb128 12f-11f\n" \ "11:\t" ".byte 0x78 # DW_OP_breg8\n\t" \ ".sleb128 3b-2b\n" \ "12:\t" ".byte 0x40 + (3b-2b-1) # DW_CFA_advance_loc\n\t" \ ".byte 0x16 # DW_CFA_val_expression\n\t" \ ".uleb128 0x8\n\t" \ ".uleb128 16f-13f\n" \ "13:\t" ".byte 0x78 # DW_OP_breg8\n\t" \ ".sleb128 15f-14f\n\t" \ ".byte 0x0d # DW_OP_const4s\n" \ "14:\t" ".4byte 3b-.\n\t" \ ".byte 0x1c # DW_OP_minus\n\t" \ ".byte 0x0d # DW_OP_const4s\n" \ "15:\t" ".4byte 18f-.\n\t" \ ".byte 0x22 # DW_OP_plus\n" \ "16:\t" ".align 4\n" \ "17:\t" ".previous\n"
Definition at line 104 of file lowlevellock.h.
#define LLL_STUB_UNWIND_INFO_START |
Value:
".section .eh_frame,\"a\",@progbits\n" \ "5:\t" ".long 7f-6f # Length of Common Information Entry\n" \ "6:\t" ".long 0x0 # CIE Identifier Tag\n\t" \ ".byte 0x1 # CIE Version\n\t" \ ".ascii \"zR\\0\" # CIE Augmentation\n\t" \ ".uleb128 0x1 # CIE Code Alignment Factor\n\t" \ ".sleb128 -4 # CIE Data Alignment Factor\n\t" \ ".byte 0x8 # CIE RA Column\n\t" \ ".uleb128 0x1 # Augmentation size\n\t" \ ".byte 0x1b # FDE Encoding (pcrel sdata4)\n\t" \ ".byte 0xc # DW_CFA_def_cfa\n\t" \ ".uleb128 0x4\n\t" \ ".uleb128 0x0\n\t" \ ".align 4\n" \ "7:\t" ".long 17f-8f # FDE Length\n" \ "8:\t" ".long 8b-5b # FDE CIE offset\n\t" \ ".long 1b-. # FDE initial location\n\t" \ ".long 4b-1b # FDE address range\n\t" \ ".uleb128 0x0 # Augmentation size\n\t" \ ".byte 0x16 # DW_CFA_val_expression\n\t" \ ".uleb128 0x8\n\t" \ ".uleb128 10f-9f\n" \ "9:\t" ".byte 0x78 # DW_OP_breg8\n\t" \ ".sleb128 3b-1b\n"
Definition at line 79 of file lowlevellock.h.
#define lll_timedwait_tid | ( | tid, | |||
abstime | ) |
Value:
({ \ int __result = 0; \ if (tid != 0) \ { \ if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) \ __result = EINVAL; \ else \ __result = __lll_timedwait_tid (&tid, abstime); \ } \ __result; })
Definition at line 570 of file lowlevellock.h.
#define lll_trylock | ( | futex | ) |
Value:
({ unsigned char ret; \ __asm __volatile ("cmpl $0, %%gs:%P5\n\t" \ "je 0f\n\t" \ "lock\n" \ "0:\tcmpxchgl %2, %1; setne %0" \ : "=a" (ret), "=m" (futex) \ : "r" (LLL_MUTEX_LOCK_INITIALIZER_LOCKED), "m" (futex),\ "0" (LLL_MUTEX_LOCK_INITIALIZER), \ "i" (offsetof (tcbhead_t, multiple_threads)) \ : "memory"); \ ret; })
Definition at line 479 of file lowlevellock.h.
#define lll_unlock | ( | futex | ) |
Value:
(void) ({ int ignore; \ __asm __volatile ("cmpl $0, %%gs:%P3\n\t" \ "je 0f\n\t" \ "lock\n" \ "0:\tsubl $1,%0\n\t" \ "jne _L_unlock_%=\n\t" \ ".subsection 1\n\t" \ ".type _L_unlock_%=,@function\n" \ "_L_unlock_%=:\n" \ "1:\tleal %0, %%eax\n" \ "2:\tcall __lll_mutex_unlock_wake\n" \ "3:\tjmp 18f\n\t" \ "4:\t.size _L_unlock_%=, 4b-1b\n\t" \ ".previous\n" \ LLL_STUB_UNWIND_INFO_3 \ "18:" \ : "=m" (futex), "=&a" (ignore) \ : "m" (futex), \ "i" (offsetof (tcbhead_t, multiple_threads)) \ : "memory"); })
Definition at line 516 of file lowlevellock.h.
#define lll_wait_tid | ( | tid | ) |
Value:
do { \ int __ignore; \ register __typeof (tid) _tid asm ("edx") = (tid); \ if (_tid != 0) \ __asm __volatile (LLL_EBX_LOAD \ "1:\tmovl %1, %%eax\n\t" \ LLL_ENTER_KERNEL \ "cmpl $0, (%%ebx)\n\t" \ "jne 1b\n\t" \ LLL_EBX_LOAD \ : "=&a" (__ignore) \ : "i" (SYS_futex), LLL_EBX_REG (&tid), "S" (0), \ "c" (FUTEX_WAIT), "d" (_tid), \ "i" (offsetof (tcbhead_t, sysinfo)) \ : "memory"); \ } while (0)
Definition at line 550 of file lowlevellock.h.