release/src-rt-6.x.4708/linux/linux-2.6.36/arch/um/sys-i386/shared/sysdep/sigcontext.h

   1 /*
   2  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #ifndef __SYS_SIGCONTEXT_I386_H
   7 #define __SYS_SIGCONTEXT_I386_H
   8
   9 #include "sysdep/sc.h"
  10
  11 #define IP_RESTART_SYSCALL(ip) ((ip) -= 2)
  12
  13 #define GET_FAULTINFO_FROM_SC(fi, sc) \
  14         { \
  15                 (fi).cr2 = SC_CR2(sc); \
  16                 (fi).error_code = SC_ERR(sc); \
  17                 (fi).trap_no = SC_TRAPNO(sc); \
  18         }
  19
  20 /* This is Page Fault */
  21 #define SEGV_IS_FIXABLE(fi)     ((fi)->trap_no == 14)
  22
  23 /* SKAS3 has no trap_no on i386, but get_skas_faultinfo() sets it to 0. */
  24 #define SEGV_MAYBE_FIXABLE(fi)  ((fi)->trap_no == 0 && ptrace_faultinfo)
  25
  26 #endif