arch/alpha/include/asm/a.out-core.h

   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 #include <linux/mm_types.h>
  19
  20 /*
  21  * Fill in the user structure for an ECOFF core dump.
  22  */
  23 static inline void aout_dump_thread(struct pt_regs *pt, struct user *dump)
  24 {
  25         /* switch stack follows right below pt_regs: */
  26         struct switch_stack * sw = ((struct switch_stack *) pt) - 1;
  27
  28         dump->magic = CMAGIC;
  29         dump->start_code  = current->mm->start_code;
  30         dump->start_data  = current->mm->start_data;
  31         dump->start_stack = rdusp() & ~(PAGE_SIZE - 1);
  32         dump->u_tsize = ((current->mm->end_code - dump->start_code)
  33                          >> PAGE_SHIFT);
  34         dump->u_dsize = ((current->mm->brk + PAGE_SIZE-1 - dump->start_data)
  35                          >> PAGE_SHIFT);
  36         dump->u_ssize = (current->mm->start_stack - dump->start_stack
  37                          + PAGE_SIZE-1) >> PAGE_SHIFT;
  38
  39         /*
  40          * We store the registers in an order/format that is
  41          * compatible with DEC Unix/OSF/1 as this makes life easier
  42          * for gdb.
  43          */
  44         dump->regs[EF_V0]  = pt->r0;
  45         dump->regs[EF_T0]  = pt->r1;
  46         dump->regs[EF_T1]  = pt->r2;
  47         dump->regs[EF_T2]  = pt->r3;
  48         dump->regs[EF_T3]  = pt->r4;
  49         dump->regs[EF_T4]  = pt->r5;
  50         dump->regs[EF_T5]  = pt->r6;
  51         dump->regs[EF_T6]  = pt->r7;
  52         dump->regs[EF_T7]  = pt->r8;
  53         dump->regs[EF_S0]  = sw->r9;
  54         dump->regs[EF_S1]  = sw->r10;
  55         dump->regs[EF_S2]  = sw->r11;
  56         dump->regs[EF_S3]  = sw->r12;
  57         dump->regs[EF_S4]  = sw->r13;
  58         dump->regs[EF_S5]  = sw->r14;
  59         dump->regs[EF_S6]  = sw->r15;
  60         dump->regs[EF_A3]  = pt->r19;
  61         dump->regs[EF_A4]  = pt->r20;
  62         dump->regs[EF_A5]  = pt->r21;
  63         dump->regs[EF_T8]  = pt->r22;
  64         dump->regs[EF_T9]  = pt->r23;
  65         dump->regs[EF_T10] = pt->r24;
  66         dump->regs[EF_T11] = pt->r25;
  67         dump->regs[EF_RA]  = pt->r26;
  68         dump->regs[EF_T12] = pt->r27;
  69         dump->regs[EF_AT]  = pt->r28;
  70         dump->regs[EF_SP]  = rdusp();
  71         dump->regs[EF_PS]  = pt->ps;
  72         dump->regs[EF_PC]  = pt->pc;
  73         dump->regs[EF_GP]  = pt->gp;
  74         dump->regs[EF_A0]  = pt->r16;
  75         dump->regs[EF_A1]  = pt->r17;
  76         dump->regs[EF_A2]  = pt->r18;
  77         memcpy((char *)dump->regs + EF_SIZE, sw->fp, 32 * 8);
  78 }
  79
  80 #endif /* __KERNEL__ */
  81 #endif /* _ASM_A_OUT_CORE_H */