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Rev | Author | Line No. | Line |
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422 | giacomo | 1 | /* Never include this file directly. Include <linux/compiler.h> instead. */ |
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3 | /* |
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4 | * Common definitions for all gcc versions go here. |
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5 | */ |
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6 | |||
7 | |||
8 | /* Optimization barrier */ |
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9 | /* The "volatile" is due to gcc bugs */ |
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10 | #define barrier() __asm__ __volatile__("": : :"memory") |
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11 | |||
12 | /* This macro obfuscates arithmetic on a variable address so that gcc |
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13 | shouldn't recognize the original var, and make assumptions about it */ |
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14 | #define RELOC_HIDE(ptr, off) \ |
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15 | ({ unsigned long __ptr; \ |
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16 | __asm__ ("" : "=g"(__ptr) : "0"(ptr)); \ |
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17 | (typeof(ptr)) (__ptr + (off)); }) |