| #include <machine/asm.h> |
| #include <sys/linux-syscalls.h> |
| |
| #define FUTEX_WAIT 0 |
| #define FUTEX_WAKE 1 |
| |
| // int __futex_wait(volatile void *ftx, int val, const struct timespec *timeout) |
| ENTRY(__futex_wait) |
| pushl %ebx |
| pushl %esi |
| mov 12(%esp), %ebx /* ftx */ |
| movl $FUTEX_WAIT, %ecx |
| mov 16(%esp), %edx /* val */ |
| mov 20(%esp), %esi /* timeout */ |
| movl $__NR_futex, %eax |
| int $0x80 |
| popl %esi |
| popl %ebx |
| ret |
| END(__futex_wait) |
| |
| // int __futex_wake(volatile void *ftx, int count) |
| ENTRY(__futex_wake) |
| pushl %ebx |
| mov 8(%esp), %ebx /* ftx */ |
| movl $FUTEX_WAKE, %ecx |
| mov 12(%esp), %edx /* count */ |
| movl $__NR_futex, %eax |
| int $0x80 |
| popl %ebx |
| ret |
| END(__futex_wake) |
| |
| // int __futex_syscall3(volatile void *ftx, int op, int count) |
| ENTRY(__futex_syscall3) |
| pushl %ebx |
| movl 8(%esp), %ebx /* ftx */ |
| movl 12(%esp), %ecx /* op */ |
| movl 16(%esp), %edx /* value */ |
| movl $__NR_futex, %eax |
| int $0x80 |
| popl %ebx |
| ret |
| END(__futex_syscall3) |
| |
| // int __futex_syscall4(volatile void *ftx, int op, int val, const struct timespec *timeout) |
| ENTRY(__futex_syscall4) |
| pushl %ebx |
| pushl %esi |
| movl 12(%esp), %ebx /* ftx */ |
| movl 16(%esp), %ecx /* op */ |
| movl 20(%esp), %edx /* val */ |
| movl 24(%esp), %esi /* timeout */ |
| movl $__NR_futex, %eax |
| int $0x80 |
| popl %esi |
| popl %ebx |
| ret |
| END(__futex_syscall4) |