xref: /linux/arch/s390/kernel/asm-offsets.c (revision 026477c1141b67e98e3bd8bdedb7d4b88a3ecd09)
1 /*
2  * Generate definitions needed by assembly language modules.
3  * This code generates raw asm output which is post-processed to extract
4  * and format the required data.
5  */
6 
7 #include <linux/sched.h>
8 
9 /* Use marker if you need to separate the values later */
10 
11 #define DEFINE(sym, val, marker) \
12 	asm volatile("\n->" #sym " %0 " #val " " #marker : : "i" (val))
13 
14 #define BLANK() asm volatile("\n->" : : )
15 
16 int main(void)
17 {
18 	DEFINE(__THREAD_info, offsetof(struct task_struct, thread_info),);
19 	DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp),);
20 	DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info),);
21 	DEFINE(__THREAD_mm_segment,
22 	       offsetof(struct task_struct, thread.mm_segment),);
23 	BLANK();
24 	DEFINE(__TASK_pid, offsetof(struct task_struct, pid),);
25 	BLANK();
26 	DEFINE(__PER_atmid, offsetof(per_struct, lowcore.words.perc_atmid),);
27 	DEFINE(__PER_address, offsetof(per_struct, lowcore.words.address),);
28 	DEFINE(__PER_access_id, offsetof(per_struct, lowcore.words.access_id),);
29 	BLANK();
30 	DEFINE(__TI_task, offsetof(struct thread_info, task),);
31 	DEFINE(__TI_domain, offsetof(struct thread_info, exec_domain),);
32 	DEFINE(__TI_flags, offsetof(struct thread_info, flags),);
33 	DEFINE(__TI_cpu, offsetof(struct thread_info, cpu),);
34 	DEFINE(__TI_precount, offsetof(struct thread_info, preempt_count),);
35 	BLANK();
36 	DEFINE(__PT_ARGS, offsetof(struct pt_regs, args),);
37 	DEFINE(__PT_PSW, offsetof(struct pt_regs, psw),);
38 	DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs),);
39 	DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2),);
40 	DEFINE(__PT_ILC, offsetof(struct pt_regs, ilc),);
41 	DEFINE(__PT_TRAP, offsetof(struct pt_regs, trap),);
42 	DEFINE(__PT_SIZE, sizeof(struct pt_regs),);
43 	BLANK();
44 	DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain),);
45 	DEFINE(__SF_GPRS, offsetof(struct stack_frame, gprs),);
46 	DEFINE(__SF_EMPTY, offsetof(struct stack_frame, empty1),);
47 	return 0;
48 }
49