| Arnd Bergmann | c31ae4b | 2009-05-13 22:56:25 +0000 | [diff] [blame] | 1 | #ifndef __ASM_GENERIC_BITS_PER_LONG |
| 2 | #define __ASM_GENERIC_BITS_PER_LONG |
| 3 | |
| 4 | /* |
| 5 | * There seems to be no way of detecting this automatically from user |
| 6 | * space, so 64 bit architectures should override this in their |
| 7 | * bitsperlong.h. In particular, an architecture that supports |
| 8 | * both 32 and 64 bit user space must not rely on CONFIG_64BIT |
| 9 | * to decide it, but rather check a compiler provided macro. |
| 10 | */ |
| 11 | #ifndef __BITS_PER_LONG |
| 12 | #define __BITS_PER_LONG 32 |
| 13 | #endif |
| 14 | |
| 15 | #ifdef __KERNEL__ |
| 16 | |
| 17 | #ifdef CONFIG_64BIT |
| 18 | #define BITS_PER_LONG 64 |
| 19 | #else |
| 20 | #define BITS_PER_LONG 32 |
| 21 | #endif /* CONFIG_64BIT */ |
| 22 | |
| 23 | /* |
| 24 | * FIXME: The check currently breaks x86-64 build, so it's |
| 25 | * temporarily disabled. Please fix x86-64 and reenable |
| 26 | */ |
| 27 | #if 0 && BITS_PER_LONG != __BITS_PER_LONG |
| 28 | #error Inconsistent word size. Check asm/bitsperlong.h |
| 29 | #endif |
| 30 | |
| 31 | #endif /* __KERNEL__ */ |
| 32 | #endif /* __ASM_GENERIC_BITS_PER_LONG */ |