asm-offsets.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Copyright (C) 1996 David S. Miller
 4 * Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ralf Baechle
 5 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
 6 * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
 7 * Copyright (C) 2000 MIPS Technologies, Inc.
 8 *
 9 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
10 */
11#define COMPILE_OFFSETS
12
13#include <linux/compat.h>
14#include <linux/types.h>
15#include <linux/sched.h>
16#include <linux/interrupt.h>
17#include <linux/kbuild.h>
18#include <asm/ptrace.h>
19#include <asm/processor.h>
20
21/*  This file is used to produce asm/linkerscript constants from header
22    files typically used in c.  Specifically, it generates asm-offsets.h  */
23
24int main(void)
25{
26	COMMENT("This is a comment.");
27	/*  might get these from somewhere else.  */
28	DEFINE(_PAGE_SIZE, PAGE_SIZE);
29	DEFINE(_PAGE_SHIFT, PAGE_SHIFT);
30	BLANK();
31
32	COMMENT("Hexagon pt_regs definitions");
33	OFFSET(_PT_SYSCALL_NR, pt_regs, syscall_nr);
34	OFFSET(_PT_GPUGP, pt_regs, gpugp);
35	OFFSET(_PT_CS1CS0, pt_regs, cs1cs0);
36	OFFSET(_PT_R3130, pt_regs, r3130);
37	OFFSET(_PT_R2928, pt_regs, r2928);
38	OFFSET(_PT_R2726, pt_regs, r2726);
39	OFFSET(_PT_R2524, pt_regs, r2524);
40	OFFSET(_PT_R2322, pt_regs, r2322);
41	OFFSET(_PT_R2120, pt_regs, r2120);
42	OFFSET(_PT_R1918, pt_regs, r1918);
43	OFFSET(_PT_R1716, pt_regs, r1716);
44	OFFSET(_PT_R1514, pt_regs, r1514);
45	OFFSET(_PT_R1312, pt_regs, r1312);
46	OFFSET(_PT_R1110, pt_regs, r1110);
47	OFFSET(_PT_R0908, pt_regs, r0908);
48	OFFSET(_PT_R0706, pt_regs, r0706);
49	OFFSET(_PT_R0504, pt_regs, r0504);
50	OFFSET(_PT_R0302, pt_regs, r0302);
51	OFFSET(_PT_R0100, pt_regs, r0100);
52	OFFSET(_PT_LC0SA0, pt_regs, lc0sa0);
53	OFFSET(_PT_LC1SA1, pt_regs, lc1sa1);
54	OFFSET(_PT_M1M0, pt_regs, m1m0);
55	OFFSET(_PT_PREDSUSR, pt_regs, predsusr);
56	OFFSET(_PT_EVREC, pt_regs, hvmer);
57	OFFSET(_PT_ER_VMEL, pt_regs, hvmer.vmel);
58	OFFSET(_PT_ER_VMEST, pt_regs, hvmer.vmest);
59	OFFSET(_PT_ER_VMPSP, pt_regs, hvmer.vmpsp);
60	OFFSET(_PT_ER_VMBADVA, pt_regs, hvmer.vmbadva);
61	DEFINE(_PT_REGS_SIZE, sizeof(struct pt_regs));
62	BLANK();
63
64	COMMENT("Hexagon thread_info definitions");
65	OFFSET(_THREAD_INFO_FLAGS, thread_info, flags);
66	OFFSET(_THREAD_INFO_PT_REGS, thread_info, regs);
67	OFFSET(_THREAD_INFO_SP, thread_info, sp);
68	DEFINE(_THREAD_SIZE, THREAD_SIZE);
69	BLANK();
70
71	COMMENT("Hexagon hexagon_switch_stack definitions");
72	OFFSET(_SWITCH_R1716, hexagon_switch_stack, r1716);
73	OFFSET(_SWITCH_R1918, hexagon_switch_stack, r1918);
74	OFFSET(_SWITCH_R2120, hexagon_switch_stack, r2120);
75	OFFSET(_SWITCH_R2322, hexagon_switch_stack, r2322);
76
77	OFFSET(_SWITCH_R2524, hexagon_switch_stack, r2524);
78	OFFSET(_SWITCH_R2726, hexagon_switch_stack, r2726);
79	OFFSET(_SWITCH_FP, hexagon_switch_stack, fp);
80	OFFSET(_SWITCH_LR, hexagon_switch_stack, lr);
81	DEFINE(_SWITCH_STACK_SIZE, sizeof(struct hexagon_switch_stack));
82	BLANK();
83
84	COMMENT("Hexagon task_struct definitions");
85	OFFSET(_TASK_THREAD_INFO, task_struct, stack);
86	OFFSET(_TASK_STRUCT_THREAD, task_struct, thread);
87
88	COMMENT("Hexagon thread_struct definitions");
89	OFFSET(_THREAD_STRUCT_SWITCH_SP, thread_struct, switch_sp);
90
91	return 0;
92}