| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* | 
|  | 2 | * This program is used to generate definitions needed by | 
|  | 3 | * assembly language modules. | 
|  | 4 | * | 
|  | 5 | * We use the technique used in the OSF Mach kernel code: | 
|  | 6 | * generate asm statements containing #defines, | 
|  | 7 | * compile this file to assembler, and then extract the | 
|  | 8 | * #defines from the assembly-language output. | 
|  | 9 | */ | 
|  | 10 |  | 
|  | 11 | #include <linux/stddef.h> | 
|  | 12 | #include <linux/types.h> | 
|  | 13 | #include <linux/mm.h> | 
|  | 14 | #include <asm/thread_info.h> | 
|  | 15 |  | 
|  | 16 | #define DEFINE(sym, val) \ | 
|  | 17 | asm volatile("\n->" #sym " %0 " #val : : "i" (val)) | 
|  | 18 |  | 
|  | 19 | #define BLANK() asm volatile("\n->" : : ) | 
|  | 20 |  | 
|  | 21 | int main(void) | 
|  | 22 | { | 
|  | 23 | /* offsets into the thread_info struct */ | 
|  | 24 | DEFINE(TI_TASK,		offsetof(struct thread_info, task)); | 
|  | 25 | DEFINE(TI_EXEC_DOMAIN,	offsetof(struct thread_info, exec_domain)); | 
|  | 26 | DEFINE(TI_FLAGS,	offsetof(struct thread_info, flags)); | 
|  | 27 | DEFINE(TI_PRE_COUNT,	offsetof(struct thread_info, preempt_count)); | 
|  | 28 | DEFINE(TI_CPU,		offsetof(struct thread_info, cpu)); | 
|  | 29 | DEFINE(TI_ADDR_LIMIT,	offsetof(struct thread_info, addr_limit)); | 
|  | 30 | DEFINE(TI_RESTART_BLOCK,offsetof(struct thread_info, restart_block)); | 
|  | 31 |  | 
|  | 32 | return 0; | 
|  | 33 | } |