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| Rev 1408 | Rev 1964 | ||
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| Line 33... | Line 33... | ||
| 33 | ({ unsigned long __ptr; \ |
33 | ({ unsigned long __ptr; \ |
| 34 | __asm__ ("" : "=r"(__ptr) : "0"(ptr)); \ |
34 | __asm__ ("" : "=r"(__ptr) : "0"(ptr)); \ |
| 35 | (typeof(ptr)) (__ptr + (off)); }) |
35 | (typeof(ptr)) (__ptr + (off)); }) |
| Line 36... | Line 36... | ||
| 36 | 36 | ||
| 37 | /* &a[0] degrades to a pointer: a different type from an array */ |
- | |
| 38 | #define __must_be_array(a) \ |
37 | /* &a[0] degrades to a pointer: a different type from an array */ |
| Line 39... | Line 38... | ||
| 39 | BUILD_BUG_ON_ZERO(__builtin_types_compatible_p(typeof(a), typeof(&a[0]))) |
38 | #define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) |
| 40 | 39 | ||
| 41 | /* |
40 | /* |
| 42 | * Force always-inline if the user requests it so via the .config, |
41 | * Force always-inline if the user requests it so via the .config, |
| Line 56... | Line 55... | ||
| 56 | /* |
55 | /* |
| 57 | * it doesn't make sense on ARM (currently the only user of __naked) to trace |
56 | * it doesn't make sense on ARM (currently the only user of __naked) to trace |
| 58 | * naked functions because then mcount is called without stack and frame pointer |
57 | * naked functions because then mcount is called without stack and frame pointer |
| 59 | * being set up and there is no chance to restore the lr register to the value |
58 | * being set up and there is no chance to restore the lr register to the value |
| 60 | * before mcount was called. |
59 | * before mcount was called. |
| - | 60 | * |
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| - | 61 | * The asm() bodies of naked functions often depend on standard calling conventions, |
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| - | 62 | * therefore they must be noinline and noclone. GCC 4.[56] currently fail to enforce |
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| - | 63 | * this, so we must do so ourselves. See GCC PR44290. |
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| 61 | */ |
64 | */ |
| 62 | #define __naked __attribute__((naked)) notrace |
65 | #define __naked __attribute__((naked)) noinline __noclone notrace |
| Line 63... | Line 66... | ||
| 63 | 66 | ||
| Line 64... | Line 67... | ||
| 64 | #define __noreturn __attribute__((noreturn)) |
67 | #define __noreturn __attribute__((noreturn)) |
| 65 | 68 | ||
| Line 83... | Line 86... | ||
| 83 | 86 | ||
| 84 | #define __gcc_header(x) #x |
87 | #define __gcc_header(x) #x |
| 85 | #define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h) |
88 | #define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h) |
| 86 | #define gcc_header(x) _gcc_header(x) |
89 | #define gcc_header(x) _gcc_header(x) |
| - | 90 | #include gcc_header(__GNUC__) |
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| - | 91 | ||
| - | 92 | #if !defined(__noclone) |
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| - | 93 | #define __noclone /* not needed */ |
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