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/sched.h>
13#include <linux/kernel_stat.h>
14#include <linux/ptrace.h>
15#include <linux/hardirq.h>
16#include <linux/kbuild.h>
17#include <asm/irq.h>
18#include <asm/ptrace.h>
19
20int main(void)
21{
22	/* offsets into the task struct */
23	OFFSET(TASK_STATE, task_struct, state);
24	OFFSET(TASK_FLAGS, task_struct, flags);
25	OFFSET(TASK_PTRACE, task_struct, ptrace);
26	OFFSET(TASK_BLOCKED, task_struct, blocked);
27	OFFSET(TASK_THREAD, task_struct, thread);
28	OFFSET(TASK_THREAD_INFO, task_struct, stack);
29	OFFSET(TASK_MM, task_struct, mm);
30	OFFSET(TASK_ACTIVE_MM, task_struct, active_mm);
31
32	/* offsets into the irq_cpustat_t struct */
33	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t,
34						 __softirq_pending));
35
36	/* offsets into the thread struct */
37	OFFSET(THREAD_KSP, thread_struct, ksp);
38	OFFSET(THREAD_USP, thread_struct, usp);
39	OFFSET(THREAD_CCR, thread_struct, ccr);
40
41	/* offsets into the pt_regs struct */
42	DEFINE(LER0,  offsetof(struct pt_regs, er0)      - sizeof(long));
43	DEFINE(LER1,  offsetof(struct pt_regs, er1)      - sizeof(long));
44	DEFINE(LER2,  offsetof(struct pt_regs, er2)      - sizeof(long));
45	DEFINE(LER3,  offsetof(struct pt_regs, er3)      - sizeof(long));
46	DEFINE(LER4,  offsetof(struct pt_regs, er4)      - sizeof(long));
47	DEFINE(LER5,  offsetof(struct pt_regs, er5)      - sizeof(long));
48	DEFINE(LER6,  offsetof(struct pt_regs, er6)      - sizeof(long));
49	DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
50	DEFINE(LSP,   offsetof(struct pt_regs, sp)       - sizeof(long));
51	DEFINE(LCCR,  offsetof(struct pt_regs, ccr)      - sizeof(long));
52	DEFINE(LVEC,  offsetof(struct pt_regs, vector)   - sizeof(long));
53#if defined(CONFIG_CPU_H8S)
54	DEFINE(LEXR,  offsetof(struct pt_regs, exr)      - sizeof(long));
55#endif
56	DEFINE(LRET,  offsetof(struct pt_regs, pc)       - sizeof(long));
57
58	DEFINE(PT_PTRACED, PT_PTRACED);
59
60	/* offsets in thread_info structure */
61	OFFSET(TI_TASK, thread_info, task);
62	OFFSET(TI_FLAGS, thread_info, flags);
63	OFFSET(TI_CPU, thread_info, cpu);
64	OFFSET(TI_PRE, thread_info, preempt_count);
65
66	return 0;
67}