include/asm-sparc/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
  19 /*
  20  * fill in the user structure for an a.out core dump
  21  */
  22 static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
  23 {
  24         unsigned long first_stack_page;
  25
  26         dump->magic = SUNOS_CORE_MAGIC;
  27         dump->len = sizeof(struct user);
  28         dump->regs.psr = regs->psr;
  29         dump->regs.pc = regs->pc;
  30         dump->regs.npc = regs->npc;
  31         dump->regs.y = regs->y;
  32         /* fuck me plenty */
  33         memcpy(&dump->regs.regs[0], &regs->u_regs[1], (sizeof(unsigned long) * 15));
  34         dump->uexec = current->thread.core_exec;
  35         dump->u_tsize = (((unsigned long) current->mm->end_code) -
  36                 ((unsigned long) current->mm->start_code)) & ~(PAGE_SIZE - 1);
  37         dump->u_dsize = ((unsigned long) (current->mm->brk + (PAGE_SIZE-1)));
  38         dump->u_dsize -= dump->u_tsize;
  39         dump->u_dsize &= ~(PAGE_SIZE - 1);
  40         first_stack_page = (regs->u_regs[UREG_FP] & ~(PAGE_SIZE - 1));
  41         dump->u_ssize = (TASK_SIZE - first_stack_page) & ~(PAGE_SIZE - 1);
  42         memcpy(&dump->fpu.fpstatus.fregs.regs[0], &current->thread.float_regs[0], (sizeof(unsigned long) * 32));
  43         dump->fpu.fpstatus.fsr = current->thread.fsr;
  44         dump->fpu.fpstatus.flags = dump->fpu.fpstatus.extra = 0;
  45         dump->fpu.fpstatus.fpq_count = current->thread.fpqdepth;
  46         memcpy(&dump->fpu.fpstatus.fpq[0], &current->thread.fpqueue[0],
  47                ((sizeof(unsigned long) * 2) * 16));
  48         dump->sigcode = 0;
  49 }
  50
  51 #endif /* __KERNEL__ */
  52 #endif /* _ASM_A_OUT_CORE_H */