projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 3de10437 DJ |
1 | /* Save current context and jump to a new context. |
| 2 | Copyright (C) 2002, 2004, 2005, 2006 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, write to the Free | |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
| 18 | 02111-1307 USA. */ | |
| 19 | ||
| 20 | #include <sysdep.h> | |
| 21 | #include <rtld-global-offsets.h> | |
| 22 | #include <shlib-compat.h> | |
| 23 | ||
| 24 | #define __ASSEMBLY__ | |
| 25 | #include <asm/ptrace.h> | |
| 26 | #include "ucontext_i.h" | |
| 27 | ||
| 28 | #define __CONTEXT_FUNC_NAME __swapcontext | |
| 29 | #undef __CONTEXT_ENABLE_FPRS | |
| 30 | #undef __CONTEXT_ENABLE_VRS | |
| 31 | ||
| 32 | # include "swapcontext-common.S" | |
| 33 | ||
| 34 | versioned_symbol (libc, __swapcontext, swapcontext, GLIBC_2_3_4) | |
| 35 | ||
| 36 | #if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4) | |
| 37 | ||
| 38 | /* For the nofpu case the old/new versions are the same function. */ | |
| 39 | strong_alias (__swapcontext, __novec_swapcontext) | |
| 40 | ||
| 41 | compat_symbol (libc, __novec_swapcontext, swapcontext, GLIBC_2_3_3) | |
| 42 | ||
| 43 | #endif | |
| 44 | ||
| 45 | #if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_3_3) | |
| 46 | ||
| 47 | #define _ERRNO_H 1 | |
| 48 | #include <bits/errno.h> | |
| 49 | ||
| 50 | compat_text_section | |
| 51 | ENTRY (__swapcontext_stub) | |
| 52 | li r3,ENOSYS | |
| 53 | b __syscall_error@local | |
| 54 | END (__swapcontext_stub) | |
| 55 | .previous | |
| 56 | ||
| 57 | compat_symbol (libc, __swapcontext_stub, swapcontext, GLIBC_2_1) | |
| 58 | ||
| 59 | #endif |