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_CPU, offsetof(struct thread_info, cpu)); 28 DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count)); 29 DEFINE(TI_RESTART_BLOCK,offsetof(struct thread_info, restart_block)); 30 31 return 0; 32 } 33