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| author | David 'Digit' Turner <digit@google.com> | 2010-03-18 17:13:41 -0700 |
|---|---|---|
| committer | David 'Digit' Turner <digit@google.com> | 2010-03-18 17:13:41 -0700 |
| commit | 88f06cd84a70f8a5212cb03272ec2c7cf0017afa (patch) | |
| tree | 4ff0a88177cd5fb2ca9c0e6df9a331cea7ecad1c /libc/arch-x86/bionic/atomics_x86.S | |
| parent | ee7b077abf1d99503b986489ad93374a057cb354 (diff) | |
| download | bionic-88f06cd84a70f8a5212cb03272ec2c7cf0017afa.zip bionic-88f06cd84a70f8a5212cb03272ec2c7cf0017afa.tar.gz bionic-88f06cd84a70f8a5212cb03272ec2c7cf0017afa.tar.bz2 | |
Use private futexes for pthread_mutex_t.
This does not change the implementation of conditional variables
since we're waiting for other system components to properly use
pthread_condattr_init/setpshared before that.
Also remove an obsolete x86 source file.
Change-Id: Ia3e3fbac35b87a534fb04d4381c3c66b975bc8f7
Diffstat (limited to 'libc/arch-x86/bionic/atomics_x86.S')
| -rw-r--r-- | libc/arch-x86/bionic/atomics_x86.S | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libc/arch-x86/bionic/atomics_x86.S b/libc/arch-x86/bionic/atomics_x86.S index 2370f23..666e182 100644 --- a/libc/arch-x86/bionic/atomics_x86.S +++ b/libc/arch-x86/bionic/atomics_x86.S @@ -41,6 +41,38 @@ __futex_wake: popl %ebx ret +/* int __futex_syscall3(volatile void *ftx, int op, int count) */ +.text +.globl __futex_syscall3 +.type __futex_syscall3, @function +.align 4 +__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 + +/* int __futex_syscall4(volatile void *ftx, int op, int val, const struct timespec *timeout) */ +.text +.globl __futex_syscall4 +.type __futex_syscall4, @function +.align 4 +__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 /* int __atomic_cmpxchg(int old, int new, volatile int* addr) */ |