diff options
Diffstat (limited to 'include/linux/compiler-gcc.h')
-rw-r--r-- | include/linux/compiler-gcc.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index 152734055403..6e1c44a935d4 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h | |||
@@ -11,7 +11,22 @@ | |||
11 | 11 | ||
12 | /* This macro obfuscates arithmetic on a variable address so that gcc | 12 | /* This macro obfuscates arithmetic on a variable address so that gcc |
13 | shouldn't recognize the original var, and make assumptions about it */ | 13 | shouldn't recognize the original var, and make assumptions about it */ |
14 | /* | ||
15 | * Versions of the ppc64 compiler before 4.1 had a bug where use of | ||
16 | * RELOC_HIDE could trash r30. The bug can be worked around by changing | ||
17 | * the inline assembly constraint from =g to =r, in this particular | ||
18 | * case either is valid. | ||
19 | */ | ||
14 | #define RELOC_HIDE(ptr, off) \ | 20 | #define RELOC_HIDE(ptr, off) \ |
15 | ({ unsigned long __ptr; \ | 21 | ({ unsigned long __ptr; \ |
16 | __asm__ ("" : "=g"(__ptr) : "0"(ptr)); \ | 22 | __asm__ ("" : "=r"(__ptr) : "0"(ptr)); \ |
17 | (typeof(ptr)) (__ptr + (off)); }) | 23 | (typeof(ptr)) (__ptr + (off)); }) |
24 | |||
25 | |||
26 | #define inline inline __attribute__((always_inline)) | ||
27 | #define __inline__ __inline__ __attribute__((always_inline)) | ||
28 | #define __inline __inline __attribute__((always_inline)) | ||
29 | #define __deprecated __attribute__((deprecated)) | ||
30 | #define noinline __attribute__((noinline)) | ||
31 | #define __attribute_pure__ __attribute__((pure)) | ||
32 | #define __attribute_const__ __attribute__((__const__)) | ||