sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S

   1 /* Save current context.
   2    Copyright (C) 2002-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20 #include <rtld-global-offsets.h>
  21 #include <shlib-compat.h>
  22
  23 #define __ASSEMBLY__
  24 #include <asm/ptrace.h>
  25 #include "ucontext_i.h"
  26
  27 #include <context-e500.h>
  28
  29 #define __CONTEXT_FUNC_NAME __getcontext
  30 #undef __CONTEXT_ENABLE_FPRS
  31 #undef __CONTEXT_ENABLE_VRS
  32
  33 #include "getcontext-common.S"
  34
  35 versioned_symbol (libc, __getcontext, getcontext, GLIBC_2_3_4)
  36
  37 #if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
  38
  39 /* For the nofpu case the old/new versions are the same function.  */
  40 strong_alias (__getcontext, __novec_getcontext)
  41
  42 compat_symbol (libc, __novec_getcontext, getcontext, GLIBC_2_3_3)
  43
  44 #endif
  45
  46 #if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3)
  47
  48 #define _ERRNO_H        1
  49 #include <bits/errno.h>
  50
  51         compat_text_section
  52 ENTRY (__getcontext_stub)
  53         li      r3,ENOSYS
  54         b       __syscall_error@local
  55 END (__getcontext_stub)
  56         .previous
  57
  58 compat_symbol (libc, __getcontext_stub, getcontext, GLIBC_2_1)
  59
  60 #endif