diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S | 50 |
1 files changed, 48 insertions, 2 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S index 97a642e65e..7a75e0d7d2 100644 --- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S +++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S @@ -120,6 +120,27 @@ __pthread_cond_timedwait: callq __pthread_enable_asynccancel_2 /* Get the current time. */ +#ifdef __NR_clock_gettime + /* Get the clock number. Note that the field in the condvar + structure stores the number minus 1. */ + movq 8(%rsp), %rdi + movl cond_clock(%rdi), %edi + /* Only clocks 0 and 1 are allowed. Both are handled in the + kernel. */ + leaq 24(%rsp), %rsi + movq $__NR_clock_gettime, %rax + syscall +# ifndef __ASSUME_POSIX_TIMERS + cmpq $-ENOSYS, %rax + je 19f +# endif + + /* Compute relative timeout. */ + movq (%r13), %rcx + movq 8(%r13), %rdx + subq 24(%rsp), %rcx + subq 32(%rsp), %rdx +#else leaq 24(%rsp), %rdi xorq %rsi, %rsi movq $VSYSCALL_ADDR_vgettimeofday, %rax @@ -133,17 +154,18 @@ __pthread_cond_timedwait: movq 8(%r13), %rdx subq 24(%rsp), %rcx subq %rax, %rdx +#endif jns 12f addq $1000000000, %rdx decq %rcx 12: testq %rcx, %rcx + movq 8(%rsp), %rdi js 13f /* Store relative timeout. */ - movq %rcx, 24(%rsp) +21: movq %rcx, 24(%rsp) movq %rdx, 32(%rsp) - movq 8(%rsp), %rdi leaq 24(%rsp), %r10 xorq %rsi, %rsi /* movq $FUTEX_WAIT, %rsi */ movq %r12, %rdx @@ -265,6 +287,30 @@ __pthread_cond_timedwait: 17: movq (%rsp), %rax jmp 18b + +#if defined __NR_clock_gettime && !defined __ASSUME_POSIX_TIMERS + /* clock_gettime not available. */ +19: leaq 24(%rsp), %rdi + xorq %rsi, %rsi + movq $VSYSCALL_ADDR_vgettimeofday, %rax + callq *%rax + + /* Compute relative timeout. */ + movq 32(%rsp), %rax + movq $1000, %rdx + mul %rdx /* Milli seconds to nano seconds. */ + movq (%r13), %rcx + movq 8(%r13), %rdx + subq 24(%rsp), %rcx + subq %rax, %rdx + jns 20f + addq $1000000000, %rdx + decq %rcx +20: testq %rcx, %rcx + movq 8(%rsp), %rdi + 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) |