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/irq.h>
17#include <asm/errno.h>
18
19#define DEFINE(sym, val) \
20	asm volatile("\n->" #sym " %0 " #val : : "i" (val))
21
22#define BLANK() asm volatile("\n->" : : )
23
24int main (void)
25{
26	/* offsets into the task struct */
27	DEFINE (TASK_STATE, offsetof (struct task_struct, state));
28	DEFINE (TASK_FLAGS, offsetof (struct task_struct, flags));
29	DEFINE (TASK_PTRACE, offsetof (struct task_struct, ptrace));
30	DEFINE (TASK_BLOCKED, offsetof (struct task_struct, blocked));
31	DEFINE (TASK_THREAD, offsetof (struct task_struct, thread));
32	DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, stack));
33	DEFINE (TASK_MM, offsetof (struct task_struct, mm));
34	DEFINE (TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
35	DEFINE (TASK_PID, offsetof (struct task_struct, pid));
36
37	/* offsets into the kernel_stat struct */
38	DEFINE (STAT_IRQ, offsetof (struct kernel_stat, irqs));
39
40
41	/* signal defines */
42	DEFINE (SIGSEGV, SIGSEGV);
43	DEFINE (SEGV_MAPERR, SEGV_MAPERR);
44	DEFINE (SIGTRAP, SIGTRAP);
45	DEFINE (SIGCHLD, SIGCHLD);
46	DEFINE (SIGILL, SIGILL);
47	DEFINE (TRAP_TRACE, TRAP_TRACE);
48
49	/* ptrace flag bits */
50	DEFINE (PT_PTRACED, PT_PTRACED);
51	DEFINE (PT_DTRACE, PT_DTRACE);
52
53	/* error values */
54	DEFINE (ENOSYS, ENOSYS);
55
56	/* clone flag bits */
57	DEFINE (CLONE_VFORK, CLONE_VFORK);
58	DEFINE (CLONE_VM, CLONE_VM);
59
60	return 0;
61}
62