__asm__ __volatile__(
"# atomic down operation\n\t"
- LOCK "decl %0\n\t" /* --sem->count */
- "js 2f\n"
- "1:\n"
- LOCK_SECTION_START("")
- "2:\tcall __down_failed\n\t"
- "jmp 1b\n"
- LOCK_SECTION_END
+ LOCK_PREFIX "decl %0\n\t" /* --sem->count */
+ "jns 1f\n\t"
+ "call __down_failed\n"
+ "1:"
:"=m" (sem->count)
:"D" (sem)
:"memory");
__asm__ __volatile__(
"# atomic interruptible down operation\n\t"
- LOCK "decl %1\n\t" /* --sem->count */
- "js 2f\n\t"
- "xorl %0,%0\n"
- "1:\n"
- LOCK_SECTION_START("")
- "2:\tcall __down_failed_interruptible\n\t"
- "jmp 1b\n"
- LOCK_SECTION_END
- :"=a" (result), "=m" (sem->count)
+ "xorl %0,%0\n\t"
+ LOCK_PREFIX "decl %1\n\t" /* --sem->count */
+ "jns 2f\n\t"
+ "call __down_failed_interruptible\n"
+ "2:\n"
+ :"=&a" (result), "=m" (sem->count)
:"D" (sem)
:"memory");
return result;
__asm__ __volatile__(
"# atomic interruptible down operation\n\t"
- LOCK "decl %1\n\t" /* --sem->count */
- "js 2f\n\t"
- "xorl %0,%0\n"
- "1:\n"
- LOCK_SECTION_START("")
- "2:\tcall __down_failed_trylock\n\t"
- "jmp 1b\n"
- LOCK_SECTION_END
- :"=a" (result), "=m" (sem->count)
+ "xorl %0,%0\n\t"
+ LOCK_PREFIX "decl %1\n\t" /* --sem->count */
+ "jns 2f\n\t"
+ "call __down_failed_trylock\n\t"
+ "2:\n"
+ :"=&a" (result), "=m" (sem->count)
:"D" (sem)
:"memory","cc");
return result;
{
__asm__ __volatile__(
"# atomic up operation\n\t"
- LOCK "incl %0\n\t" /* ++sem->count */
- "jle 2f\n"
- "1:\n"
- LOCK_SECTION_START("")
- "2:\tcall __up_wakeup\n\t"
- "jmp 1b\n"
- LOCK_SECTION_END
+ LOCK_PREFIX "incl %0\n\t" /* ++sem->count */
+ "jg 1f\n\t"
+ "call __up_wakeup\n"
+ "1:"
:"=m" (sem->count)
:"D" (sem)
:"memory");