Rev 422 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 422 | giacomo | 1 | /* Never include this file directly. Include <linux/compiler.h> instead. */ |
| 2 | |||
| 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)); }) |