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David Howells7fa30312008-02-08 04:19:28 -08001/* 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#include <linux/elfcore.h>
19
20/*
21 * fill in the user structure for an a.out core dump
22 */
23static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
24{
25 struct switch_stack *sw;
26
27/* changed the size calculations - should hopefully work better. lbt */
28 dump->magic = CMAGIC;
29 dump->start_code = 0;
30 dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
31 dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
32 dump->u_dsize = ((unsigned long) (current->mm->brk +
33 (PAGE_SIZE-1))) >> PAGE_SHIFT;
34 dump->u_dsize -= dump->u_tsize;
35 dump->u_ssize = 0;
36
37 if (dump->start_stack < TASK_SIZE)
38 dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
39
40 dump->u_ar0 = offsetof(struct user, regs);
41 sw = ((struct switch_stack *)regs) - 1;
42 dump->regs.d1 = regs->d1;
43 dump->regs.d2 = regs->d2;
44 dump->regs.d3 = regs->d3;
45 dump->regs.d4 = regs->d4;
46 dump->regs.d5 = regs->d5;
47 dump->regs.d6 = sw->d6;
48 dump->regs.d7 = sw->d7;
49 dump->regs.a0 = regs->a0;
50 dump->regs.a1 = regs->a1;
51 dump->regs.a2 = regs->a2;
52 dump->regs.a3 = sw->a3;
53 dump->regs.a4 = sw->a4;
54 dump->regs.a5 = sw->a5;
55 dump->regs.a6 = sw->a6;
56 dump->regs.d0 = regs->d0;
57 dump->regs.orig_d0 = regs->orig_d0;
58 dump->regs.stkadj = regs->stkadj;
59 dump->regs.sr = regs->sr;
60 dump->regs.pc = regs->pc;
61 dump->regs.fmtvec = (regs->format << 12) | regs->vector;
62 /* dump floating point stuff */
63 dump->u_fpvalid = dump_fpu (regs, &dump->m68kfp);
64}
65
66#endif /* __KERNEL__ */
67#endif /* _ASM_A_OUT_CORE_H */