1/* a.out coredump register dumper
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12#ifndef _ASM_A_OUT_CORE_H
13#define _ASM_A_OUT_CORE_H
14
15#ifdef __KERNEL__
16
17#include <linux/user.h>
18
19/*
20 * Fill in the user structure for an ECOFF core dump.
21 */
22static inline void aout_dump_thread(struct pt_regs *pt, struct user *dump)
23{
24	/* switch stack follows right below pt_regs: */
25	struct switch_stack * sw = ((struct switch_stack *) pt) - 1;
26
27	dump->magic = CMAGIC;
28	dump->start_code  = current->mm->start_code;
29	dump->start_data  = current->mm->start_data;
30	dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
31	dump->u_tsize = ((current->mm->end_code - dump->start_code)
32			 >> PAGE_SHIFT);
33	dump->u_dsize = ((current->mm->brk + PAGE_SIZE-1 - dump->start_data)
34			 >> PAGE_SHIFT);
35	dump->u_ssize = (current->mm->start_stack - dump->start_stack
36			 + PAGE_SIZE-1) >> PAGE_SHIFT;
37
38	/*
39	 * We store the registers in an order/format that is
40	 * compatible with DEC Unix/OSF/1 as this makes life easier
41	 * for gdb.
42	 */
43	dump->regs[EF_V0]  = pt->r0;
44	dump->regs[EF_T0]  = pt->r1;
45	dump->regs[EF_T1]  = pt->r2;
46	dump->regs[EF_T2]  = pt->r3;
47	dump->regs[EF_T3]  = pt->r4;
48	dump->regs[EF_T4]  = pt->r5;
49	dump->regs[EF_T5]  = pt->r6;
50	dump->regs[EF_T6]  = pt->r7;
51	dump->regs[EF_T7]  = pt->r8;
52	dump->regs[EF_S0]  = sw->r9;
53	dump->regs[EF_S1]  = sw->r10;
54	dump->regs[EF_S2]  = sw->r11;
55	dump->regs[EF_S3]  = sw->r12;
56	dump->regs[EF_S4]  = sw->r13;
57	dump->regs[EF_S5]  = sw->r14;
58	dump->regs[EF_S6]  = sw->r15;
59	dump->regs[EF_A3]  = pt->r19;
60	dump->regs[EF_A4]  = pt->r20;
61	dump->regs[EF_A5]  = pt->r21;
62	dump->regs[EF_T8]  = pt->r22;
63	dump->regs[EF_T9]  = pt->r23;
64	dump->regs[EF_T10] = pt->r24;
65	dump->regs[EF_T11] = pt->r25;
66	dump->regs[EF_RA]  = pt->r26;
67	dump->regs[EF_T12] = pt->r27;
68	dump->regs[EF_AT]  = pt->r28;
69	dump->regs[EF_SP]  = rdusp();
70	dump->regs[EF_PS]  = pt->ps;
71	dump->regs[EF_PC]  = pt->pc;
72	dump->regs[EF_GP]  = pt->gp;
73	dump->regs[EF_A0]  = pt->r16;
74	dump->regs[EF_A1]  = pt->r17;
75	dump->regs[EF_A2]  = pt->r18;
76	memcpy((char *)dump->regs + EF_SIZE, sw->fp, 32 * 8);
77}
78
79#endif /* __KERNEL__ */
80#endif /* _ASM_A_OUT_CORE_H */
81