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 <asm/bootinfo.h>
17#include <asm/irq.h>
18#include <asm/irqnode.h>
19#include <asm/thread_info.h>
20
21#define DEFINE(sym, val) \
22        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
23
24#define BLANK() asm volatile("\n->" : : )
25
26int main(void)
27{
28	/* offsets into the task struct */
29	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
30	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
31	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
32	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
33	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
34	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
35	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
36	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
37
38	/* offsets into the kernel_stat struct */
39	DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
40
41	/* offsets into the irq_cpustat_t struct */
42	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
43
44	/* offsets into the thread struct */
45	DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
46	DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
47	DEFINE(THREAD_SR, offsetof(struct thread_struct, sr));
48	DEFINE(THREAD_FS, offsetof(struct thread_struct, fs));
49	DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp));
50	DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0));
51	DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp));
52	DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl));
53	DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate));
54
55	/* offsets into the pt_regs */
56	DEFINE(PT_D0, offsetof(struct pt_regs, d0));
57	DEFINE(PT_ORIG_D0, offsetof(struct pt_regs, orig_d0));
58	DEFINE(PT_D1, offsetof(struct pt_regs, d1));
59	DEFINE(PT_D2, offsetof(struct pt_regs, d2));
60	DEFINE(PT_D3, offsetof(struct pt_regs, d3));
61	DEFINE(PT_D4, offsetof(struct pt_regs, d4));
62	DEFINE(PT_D5, offsetof(struct pt_regs, d5));
63	DEFINE(PT_A0, offsetof(struct pt_regs, a0));
64	DEFINE(PT_A1, offsetof(struct pt_regs, a1));
65	DEFINE(PT_A2, offsetof(struct pt_regs, a2));
66	DEFINE(PT_PC, offsetof(struct pt_regs, pc));
67	DEFINE(PT_SR, offsetof(struct pt_regs, sr));
68
69#ifdef CONFIG_COLDFIRE
70	/* bitfields are a bit difficult */
71	DEFINE(PT_FORMATVEC, offsetof(struct pt_regs, sr) - 2);
72#else
73	/* bitfields are a bit difficult */
74	DEFINE(PT_VECTOR, offsetof(struct pt_regs, pc) + 4);
75	/* offsets into the irq_handler struct */
76	DEFINE(IRQ_HANDLER, offsetof(struct irq_node, handler));
77	DEFINE(IRQ_DEVID, offsetof(struct irq_node, dev_id));
78	DEFINE(IRQ_NEXT, offsetof(struct irq_node, next));
79#endif
80
81	/* offsets into the kernel_stat struct */
82	DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs));
83
84	/* signal defines */
85	DEFINE(SIGSEGV, SIGSEGV);
86	DEFINE(SEGV_MAPERR, SEGV_MAPERR);
87	DEFINE(SIGTRAP, SIGTRAP);
88	DEFINE(TRAP_TRACE, TRAP_TRACE);
89
90	DEFINE(PT_PTRACED, PT_PTRACED);
91	DEFINE(PT_DTRACE, PT_DTRACE);
92
93	DEFINE(THREAD_SIZE, THREAD_SIZE);
94
95	/* Offsets in thread_info structure */
96	DEFINE(TI_TASK, offsetof(struct thread_info, task));
97	DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain));
98	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
99	DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
100
101	return 0;
102}
103