a.out-core.h

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/* a.out coredump register dumper
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells ([email protected])
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */

#ifndef _ASM_A_OUT_CORE_H
#define _ASM_A_OUT_CORE_H

#ifdef __KERNEL__

#include <linux/user.h>

/*
 * Fill in the user structure for an ECOFF core dump.
 */
static inline void aout_dump_thread(struct pt_regs *pt, struct user *dump)
{
    /* switch stack follows right below pt_regs: */
    struct switch_stack * sw = ((struct switch_stack *) pt) - 1;

    dump->magic = CMAGIC;
    dump->start_code  = current->mm->start_code;
    dump->start_data  = current->mm->start_data;
    dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
    dump->u_tsize = ((current->mm->end_code - dump->start_code)
             >> PAGE_SHIFT);
    dump->u_dsize = ((current->mm->brk + PAGE_SIZE-1 - dump->start_data)
             >> PAGE_SHIFT);
    dump->u_ssize = (current->mm->start_stack - dump->start_stack
             + PAGE_SIZE-1) >> PAGE_SHIFT;

    /*
     * We store the registers in an order/format that is
     * compatible with DEC Unix/OSF/1 as this makes life easier
     * for gdb.
     */
    dump->regs[EF_V0]  = pt->r0;
    dump->regs[EF_T0]  = pt->r1;
    dump->regs[EF_T1]  = pt->r2;
    dump->regs[EF_T2]  = pt->r3;
    dump->regs[EF_T3]  = pt->r4;
    dump->regs[EF_T4]  = pt->r5;
    dump->regs[EF_T5]  = pt->r6;
    dump->regs[EF_T6]  = pt->r7;
    dump->regs[EF_T7]  = pt->r8;
    dump->regs[EF_S0]  = sw->r9;
    dump->regs[EF_S1]  = sw->r10;
    dump->regs[EF_S2]  = sw->r11;
    dump->regs[EF_S3]  = sw->r12;
    dump->regs[EF_S4]  = sw->r13;
    dump->regs[EF_S5]  = sw->r14;
    dump->regs[EF_S6]  = sw->r15;
    dump->regs[EF_A3]  = pt->r19;
    dump->regs[EF_A4]  = pt->r20;
    dump->regs[EF_A5]  = pt->r21;
    dump->regs[EF_T8]  = pt->r22;
    dump->regs[EF_T9]  = pt->r23;
    dump->regs[EF_T10] = pt->r24;
    dump->regs[EF_T11] = pt->r25;
    dump->regs[EF_RA]  = pt->r26;
    dump->regs[EF_T12] = pt->r27;
    dump->regs[EF_AT]  = pt->r28;
    dump->regs[EF_SP]  = rdusp();
    dump->regs[EF_PS]  = pt->ps;
    dump->regs[EF_PC]  = pt->pc;
    dump->regs[EF_GP]  = pt->gp;
    dump->regs[EF_A0]  = pt->r16;
    dump->regs[EF_A1]  = pt->r17;
    dump->regs[EF_A2]  = pt->r18;
    memcpy((char *)dump->regs + EF_SIZE, sw->fp, 32 * 8);
}

#endif /* __KERNEL__ */
#endif /* _ASM_A_OUT_CORE_H */