1/*
 2 * OpenRISC asm-offsets.c
 3 *
 4 * Linux architectural port borrowing liberally from similar works of
 5 * others.  All original copyrights apply as per the original source
 6 * declaration.
 7 *
 8 * Modifications for the OpenRISC architecture:
 9 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 *
12 *      This program is free software; you can redistribute it and/or
13 *      modify it under the terms of the GNU General Public License
14 *      as published by the Free Software Foundation; either version
15 *      2 of the License, or (at your option) any later version.
16 *
17 * This program is used to generate definitions needed by
18 * assembly language modules.
19 *
20 * We use the technique used in the OSF Mach kernel code:
21 * generate asm statements containing #defines,
22 * compile this file to assembler, and then extract the
23 * #defines from the assembly-language output.
24 */
25
26#include <linux/signal.h>
27#include <linux/sched.h>
28#include <linux/kernel.h>
29#include <linux/errno.h>
30#include <linux/string.h>
31#include <linux/types.h>
32#include <linux/ptrace.h>
33#include <linux/mman.h>
34#include <linux/mm.h>
35#include <linux/io.h>
36#include <linux/thread_info.h>
 
37#include <asm/page.h>
38#include <asm/pgtable.h>
39#include <asm/processor.h>
40
41#define DEFINE(sym, val) \
42		asm volatile("\n->" #sym " %0 " #val : : "i" (val))
43
44#define BLANK() asm volatile("\n->" : : )
45
46int main(void)
47{
48	/* offsets into the task_struct */
49	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
50	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
51	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
52	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
53	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
54	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
55
56	/* offsets into thread_info */
57	DEFINE(TI_TASK, offsetof(struct thread_info, task));
58	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
59	DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
60	DEFINE(TI_KSP, offsetof(struct thread_info, ksp));
61
62	DEFINE(PT_SIZE, sizeof(struct pt_regs));
63
64	/* Interrupt register frame */
65	DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
66	DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
67
68	DEFINE(NUM_USER_SEGMENTS, TASK_SIZE >> 28);
69	return 0;
70}

 1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * OpenRISC asm-offsets.c
 4 *
 5 * Linux architectural port borrowing liberally from similar works of
 6 * others.  All original copyrights apply as per the original source
 7 * declaration.
 8 *
 9 * Modifications for the OpenRISC architecture:
10 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
11 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
12 *
 
 
 
 
 
13 * This program is used to generate definitions needed by
14 * assembly language modules.
15 *
16 * We use the technique used in the OSF Mach kernel code:
17 * generate asm statements containing #defines,
18 * compile this file to assembler, and then extract the
19 * #defines from the assembly-language output.
20 */
21
22#include <linux/signal.h>
23#include <linux/sched.h>
24#include <linux/kernel.h>
25#include <linux/errno.h>
26#include <linux/string.h>
27#include <linux/types.h>
28#include <linux/ptrace.h>
29#include <linux/mman.h>
30#include <linux/mm.h>
31#include <linux/io.h>
32#include <linux/thread_info.h>
33#include <linux/kbuild.h>
34#include <asm/page.h>
 
35#include <asm/processor.h>
36
 
 
 
 
 
37int main(void)
38{
39	/* offsets into the task_struct */
 
40	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
41	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
42	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
43	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
44	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
45
46	/* offsets into thread_info */
47	DEFINE(TI_TASK, offsetof(struct thread_info, task));
48	DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
49	DEFINE(TI_PREEMPT, offsetof(struct thread_info, preempt_count));
50	DEFINE(TI_KSP, offsetof(struct thread_info, ksp));
51
52	DEFINE(PT_SIZE, sizeof(struct pt_regs));
53
54	/* Interrupt register frame */
55	DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
56	DEFINE(INT_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
57
58	DEFINE(NUM_USER_SEGMENTS, TASK_SIZE >> 28);
59	return 0;
60}