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-rw-r--r--include/linux/compiler-gcc.h17
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__))