alpha xchg has to be a macro - alpha disables always_inline and if that
puppy does not get inlined, we immediately blow up on undefined reference.
Happens even on gcc3; with gcc4 that happens a _lot_.
Signed-off-by: Al Viro <[email protected]>
----
diff -urN RC13-rc6-git13-pcmcia-irq/include/asm-alpha/system.h RC13-rc6-git13-alpha-xchg/include/asm-alpha/system.h
--- RC13-rc6-git13-pcmcia-irq/include/asm-alpha/system.h 2005-06-17 15:48:29.000000000 -0400
+++ RC13-rc6-git13-alpha-xchg/include/asm-alpha/system.h 2005-08-21 13:17:10.000000000 -0400
@@ -443,22 +443,19 @@
if something tries to do an invalid xchg(). */
extern void __xchg_called_with_bad_pointer(void);
-static inline unsigned long
-__xchg(volatile void *ptr, unsigned long x, int size)
-{
- switch (size) {
- case 1:
- return __xchg_u8(ptr, x);
- case 2:
- return __xchg_u16(ptr, x);
- case 4:
- return __xchg_u32(ptr, x);
- case 8:
- return __xchg_u64(ptr, x);
- }
- __xchg_called_with_bad_pointer();
- return x;
-}
+#define __xchg(ptr, x, size) \
+({ \
+ unsigned long __xchg__res; \
+ volatile void *__xchg__ptr = (ptr); \
+ switch (size) { \
+ case 1: __xchg__res = __xchg_u8(__xchg__ptr, x); break; \
+ case 2: __xchg__res = __xchg_u16(__xchg__ptr, x); break; \
+ case 4: __xchg__res = __xchg_u32(__xchg__ptr, x); break; \
+ case 8: __xchg__res = __xchg_u64(__xchg__ptr, x); break; \
+ default: __xchg_called_with_bad_pointer(); __xchg__res = x; \
+ } \
+ __xchg__res; \
+})
#define xchg(ptr,x) \
({ \
-
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