Changeset 6601f9b in mainline
- Timestamp:
- 2014-10-09T15:46:34Z (10 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- ad05baf
- Parents:
- e8f3637
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/arch/sparc32/src/sparc32.c
re8f3637 r6601f9b 37 37 #include <arch/interrupt.h> 38 38 #include <arch/asm.h> 39 #include <arch/barrier.h> 39 40 #include <arch/machine_func.h> 40 41 #include <func.h> … … 169 170 } 170 171 172 bool __atomic_compare_exchange_4(uint32_t *ptr, uint32_t *expected, 173 uint32_t desired, bool weak, int success_mm, int failure_mm) 174 { 175 ipl_t ipl; 176 bool success; 177 178 /* XXX: This is a rather dummy implementation. */ 179 180 ipl = interrupts_disable(); 181 memory_barrier(); 182 if (*ptr == *expected) { 183 success = true; 184 *ptr = desired; 185 } else { 186 success = false; 187 *expected = *ptr; 188 } 189 memory_barrier(); 190 interrupts_restore(ipl); 191 192 return success; 193 } 194 171 195 /** @} 172 196 */
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