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kernel/linux-rt-4.4.41/arch/x86/include/asm/a.out-core.h 1.86 KB
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  /* a.out coredump register dumper
   *
   * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   *
   * 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_X86_A_OUT_CORE_H
  #define _ASM_X86_A_OUT_CORE_H
  
  #ifdef __KERNEL__
  #ifdef CONFIG_X86_32
  
  #include <linux/user.h>
  #include <linux/elfcore.h>
  #include <asm/debugreg.h>
  
  /*
   * fill in the user structure for an a.out core dump
   */
  static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
  {
  /* changed the size calculations - should hopefully work better. lbt */
  	dump->magic = CMAGIC;
  	dump->start_code = 0;
  	dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
  	dump->u_tsize = ((unsigned long)current->mm->end_code) >> PAGE_SHIFT;
  	dump->u_dsize = ((unsigned long)(current->mm->brk + (PAGE_SIZE - 1)))
  			>> PAGE_SHIFT;
  	dump->u_dsize -= dump->u_tsize;
  	dump->u_ssize = 0;
  	aout_dump_debugregs(dump);
  
  	if (dump->start_stack < TASK_SIZE)
  		dump->u_ssize = ((unsigned long)(TASK_SIZE - dump->start_stack))
  				>> PAGE_SHIFT;
  
  	dump->regs.bx = regs->bx;
  	dump->regs.cx = regs->cx;
  	dump->regs.dx = regs->dx;
  	dump->regs.si = regs->si;
  	dump->regs.di = regs->di;
  	dump->regs.bp = regs->bp;
  	dump->regs.ax = regs->ax;
  	dump->regs.ds = (u16)regs->ds;
  	dump->regs.es = (u16)regs->es;
  	dump->regs.fs = (u16)regs->fs;
  	dump->regs.gs = get_user_gs(regs);
  	dump->regs.orig_ax = regs->orig_ax;
  	dump->regs.ip = regs->ip;
  	dump->regs.cs = (u16)regs->cs;
  	dump->regs.flags = regs->flags;
  	dump->regs.sp = regs->sp;
  	dump->regs.ss = (u16)regs->ss;
  
  	dump->u_fpvalid = dump_fpu(regs, &dump->i387);
  }
  
  #endif /* CONFIG_X86_32 */
  #endif /* __KERNEL__ */
  #endif /* _ASM_X86_A_OUT_CORE_H */