sigcontextinfo.h

它通过提供glibc兼容使得应用程序移植到较小的c 库时相当得容易. 它能够应用到带虚拟存储的Linux和uClinux上.在大多数带MMU部件的平台上为使它更加紧凑,它也能够编译成共享库.uClib

/* Copyright (C) 1999 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#define SIGCONTEXT struct sigcontext
#define SIGCONTEXT_EXTRA_ARGS
#define GET_PC(ctx)	((void *) (ctx).sc_pc)
#define GET_FRAME(ctx)	((void *) (ctx).sc_regs[15])
#define GET_STACK(ctx)	((void *) (ctx).sc_regs[30])
#define CALL_SIGHANDLER(handler, signo, ctx) \
  (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))