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-rw-r--r--include/asm-x86/a.out-core.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/include/asm-x86/a.out-core.h b/include/asm-x86/a.out-core.h
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index 000000000000..d2b6e11d3e97
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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#ifdef CONFIG_X86_32
17
18#include <linux/user.h>
19#include <linux/elfcore.h>
20
21/*
22 * fill in the user structure for an a.out core dump
23 */
24static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
25{
26 u16 gs;
27
28/* changed the size calculations - should hopefully work better. lbt */
29 dump->magic = CMAGIC;
30 dump->start_code = 0;
31 dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
32 dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
33 dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
34 dump->u_dsize -= dump->u_tsize;
35 dump->u_ssize = 0;
36 dump->u_debugreg[0] = current->thread.debugreg0;
37 dump->u_debugreg[1] = current->thread.debugreg1;
38 dump->u_debugreg[2] = current->thread.debugreg2;
39 dump->u_debugreg[3] = current->thread.debugreg3;
40 dump->u_debugreg[4] = 0;
41 dump->u_debugreg[5] = 0;
42 dump->u_debugreg[6] = current->thread.debugreg6;
43 dump->u_debugreg[7] = current->thread.debugreg7;
44
45 if (dump->start_stack < TASK_SIZE)
46 dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT;
47
48 dump->regs.bx = regs->bx;
49 dump->regs.cx = regs->cx;
50 dump->regs.dx = regs->dx;
51 dump->regs.si = regs->si;
52 dump->regs.di = regs->di;
53 dump->regs.bp = regs->bp;
54 dump->regs.ax = regs->ax;
55 dump->regs.ds = (u16)regs->ds;
56 dump->regs.es = (u16)regs->es;
57 dump->regs.fs = (u16)regs->fs;
58 savesegment(gs,gs);
59 dump->regs.orig_ax = regs->orig_ax;
60 dump->regs.ip = regs->ip;
61 dump->regs.cs = (u16)regs->cs;
62 dump->regs.flags = regs->flags;
63 dump->regs.sp = regs->sp;
64 dump->regs.ss = (u16)regs->ss;
65
66 dump->u_fpvalid = dump_fpu (regs, &dump->i387);
67}
68
69#endif /* CONFIG_X86_32 */
70#endif /* __KERNEL__ */
71#endif /* _ASM_A_OUT_CORE_H */