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 * On sparc, thread_info data is static and TI_XXX offsets are computed by hand. 11 */ 12 13 #include <linux/sched.h> 14 // #include <linux/mm.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 foo(void) 22 { 23 DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread)); 24 BLANK(); 25 /* XXX This is the stuff for sclow.S, kill it. */ 26 DEFINE(AOFF_task_pid, offsetof(struct task_struct, pid)); 27 DEFINE(AOFF_task_uid, offsetof(struct task_struct, uid)); 28 DEFINE(AOFF_task_gid, offsetof(struct task_struct, gid)); 29 DEFINE(AOFF_task_euid, offsetof(struct task_struct, euid)); 30 DEFINE(AOFF_task_egid, offsetof(struct task_struct, egid)); 31 /* DEFINE(THREAD_INFO, offsetof(struct task_struct, stack)); */ 32 DEFINE(ASIZ_task_uid, sizeof(current->uid)); 33 DEFINE(ASIZ_task_gid, sizeof(current->gid)); 34 DEFINE(ASIZ_task_euid, sizeof(current->euid)); 35 DEFINE(ASIZ_task_egid, sizeof(current->egid)); 36 BLANK(); 37 DEFINE(AOFF_thread_fork_kpsr, 38 offsetof(struct thread_struct, fork_kpsr)); 39 BLANK(); 40 DEFINE(AOFF_mm_context, offsetof(struct mm_struct, context)); 41 42 /* DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); */ 43 return 0; 44 } 45