diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S | 51 |
1 files changed, 49 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S index c1ce3bec17..151018ce23 100644 --- a/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S @@ -112,6 +112,29 @@ __pthread_cond_timedwait: /* Get the current time. */ movl %ebx, %edx +#ifdef __NR_clock_gettime + /* Get the clock number. Note that the field in the condvar + structure stores the number minus 1. */ + movl cond_clock(%ebx), %ebx + /* Only clocks 0 and 1 are allowed. Both are handled in the + kernel. */ + leal 12(%esp), %ecx + movl $__NR_clock_gettime, %eax + ENTER_KERNEL +# ifndef __ASSUME_POSIX_TIMERS + cmpl $-ENOSYS, %eax + je 19f +# endif + movl %edx, %ebx + + /* Compute relative timeout. */ + movl (%ebp), %ecx + movl 4(%ebp), %edx + subl 12(%esp), %ecx + subl 16(%esp), %edx +#else + /* Get the current time. */ + movl %ebx, %edx leal 12(%esp), %ebx xorl %ecx, %ecx movl $SYS_gettimeofday, %eax @@ -126,6 +149,7 @@ __pthread_cond_timedwait: movl 4(%ebp), %edx subl 12(%esp), %ecx subl %eax, %edx +#endif jns 12f addl $1000000000, %edx subl $1, %ecx @@ -133,7 +157,7 @@ __pthread_cond_timedwait: js 13f /* Store relative timeout. */ - movl %ecx, 12(%esp) +21: movl %ecx, 12(%esp) movl %edx, 16(%esp) leal 12(%esp), %esi xorl %ecx, %ecx /* movl $FUTEX_WAIT, %ecx */ @@ -275,7 +299,30 @@ __pthread_cond_timedwait: 17: popl %eax jmp 18b - .size __pthread_cond_wait, .-__pthread_cond_wait + +#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS + /* clock_gettime not available. */ +19: leal 12(%esp), %ebx + xorl %ecx, %ecx + movl $SYS_gettimeofday, %eax + ENTER_KERNEL + movl %edx, %ebx + + /* Compute relative timeout. */ + movl 16(%esp), %eax + movl $1000, %edx + mul %edx /* Milli seconds to nano seconds. */ + movl (%ebp), %ecx + movl 4(%ebp), %edx + subl 12(%esp), %ecx + subl %eax, %edx + jns 20f + addl $1000000000, %edx + subl $1, %ecx +20: testl %ecx, %ecx + js 13b + jmp 21b +#endif .size __pthread_cond_timedwait, .-__pthread_cond_timedwait versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, GLIBC_2_3_2) |