Changeset 1219

Timestamp:

Dec 13, 2015, 11:03:49 PM (9 years ago)

Author:

dmik

Message:

fontconfig: Revert r82, GCC supports atomic builtins in -march=i486 & above.

File:

• fontconfig/trunk/src/fcatomic.h (modified) (1 diff)

fontconfig/trunk/src/fcatomic.h ¶

@@ -112 +112 @@
 
 
-#elif !defined(FC_NO_MT) && defined(__GNUC__) && defined(__OS2__)
-
-extern inline int __my_sync_fetch_and_add (volatile int *ptr, int value);
-extern inline int __my_sync_fetch_and_add (volatile int *ptr, int value)
-{
-    asm volatile ("mfence; lock xaddl %%eax, %2;"
-                 : "=a" (value)
-                 : "a" (value), "m" (*ptr)
-                 : "memory");
-    return value;
-}
-
-extern inline void __my_sync_synchronize (void);
-extern inline void __my_sync_synchronize (void)
-{
-    asm volatile ("mfence" ::: "memory");
-}
-
-extern inline int __my_sync_bool_compare_and_swap (volatile void **ptr, void *oldval, void *newval);
-extern inline int __my_sync_bool_compare_and_swap (volatile void **ptr, void *oldval, void *newval)
-{
-    char success;
-    asm volatile ("mfence; lock cmpxchgl %3, %2;"
-                  "sete %1;"
-                 : "=a" (newval), "=qm" (success), "+m" (*ptr)
-                 : "r" (newval), "0" (oldval)
-                 : "memory");
-    return success != 0;
-}
-
-typedef int fc_atomic_int_t;
-#define fc_atomic_int_add(AI, V)        __my_sync_fetch_and_add (&(AI), (V))
-
-#define fc_atomic_ptr_get(P)            (void *) (__my_sync_synchronize (), *(P))
-#define fc_atomic_ptr_cmpexch(P,O,N)    __my_sync_bool_compare_and_swap ((volatile void **)(P), (void *)(O), (void *)(N))
-
-
 #elif !defined(FC_NO_MT)