include/asm-arm/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/elfcore.h>
  19
  20 /*
  21  * fill in the user structure for an a.out core dump
  22  */
  23 static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
  24 {
  25         struct task_struct *tsk = current;
  26
  27         dump->magic = CMAGIC;
  28         dump->start_code = tsk->mm->start_code;
  29         dump->start_stack = regs->ARM_sp & ~(PAGE_SIZE - 1);
  30
  31         dump->u_tsize = (tsk->mm->end_code - tsk->mm->start_code) >> PAGE_SHIFT;
  32         dump->u_dsize = (tsk->mm->brk - tsk->mm->start_data + PAGE_SIZE - 1) >> PAGE_SHIFT;
  33         dump->u_ssize = 0;
  34
  35         dump->u_debugreg[0] = tsk->thread.debug.bp[0].address;
  36         dump->u_debugreg[1] = tsk->thread.debug.bp[1].address;
  37         dump->u_debugreg[2] = tsk->thread.debug.bp[0].insn.arm;
  38         dump->u_debugreg[3] = tsk->thread.debug.bp[1].insn.arm;
  39         dump->u_debugreg[4] = tsk->thread.debug.nsaved;
  40
  41         if (dump->start_stack < 0x04000000)
  42                 dump->u_ssize = (0x04000000 - dump->start_stack) >> PAGE_SHIFT;
  43
  44         dump->regs = *regs;
  45         dump->u_fpvalid = dump_fpu (regs, &dump->u_fp);
  46 }
  47
  48 #endif /* __KERNEL__ */
  49 #endif /* _ASM_A_OUT_CORE_H */