diff options
Diffstat (limited to 'lib/libc/amd64/sys/getcontext.S')
| -rw-r--r-- | lib/libc/amd64/sys/getcontext.S | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/lib/libc/amd64/sys/getcontext.S b/lib/libc/amd64/sys/getcontext.S deleted file mode 100644 index 08a6493..0000000 --- a/lib/libc/amd64/sys/getcontext.S +++ /dev/null @@ -1,55 +0,0 @@ -/*- - * Copyright (c) 2003 Peter Wemm <peter@FreeBSD.org> - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <machine/asm.h> -__FBSDID("$FreeBSD$"); - -#include <SYS.h> - -/* - * This has to be magic to handle the multiple returns. - * Otherwise, the setcontext() syscall will return here and we'll - * pop off the return address and go to the *setcontext* call. - */ - .weak _getcontext - .set _getcontext,__sys_getcontext - .weak getcontext - .set getcontext,__sys_getcontext -ENTRY(__sys_getcontext) - movq (%rsp),%rsi /* save getcontext return address */ - mov $SYS_getcontext,%rax - KERNCALL - jb 1f - addq $8,%rsp /* remove stale (setcontext) return address */ - jmp *%rsi /* restore return address */ -1: -#ifdef PIC - movq PIC_GOT(HIDENAME(cerror)),%rdx - jmp *%rdx -#else - jmp HIDENAME(cerror) -#endif -END(__sys_getcontext) |
