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-rw-r--r--lib/libc/amd64/sys/vfork.S101
1 files changed, 0 insertions, 101 deletions
diff --git a/lib/libc/amd64/sys/vfork.S b/lib/libc/amd64/sys/vfork.S
deleted file mode 100644
index e4ed257..0000000
--- a/lib/libc/amd64/sys/vfork.S
+++ /dev/null
@@ -1,101 +0,0 @@
-/*-
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * William Jolitz.
- *
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
- *
- * $Id$
- */
-
-#if defined(SYSLIBC_RCS) && !defined(lint)
- .text
- .asciz "$Id$"
-#endif /* SYSLIBC_RCS and not lint */
-
-#include "DEFS.h"
-#include "SYS.h"
-
-/*
- * pid = vfork();
- *
- * %edx == 0 in parent process, %edx == 1 in child process.
- * %eax == pid of child in parent, %eax == pid of parent in child.
- *
- */
-
-ENTRY(vfork)
- popl %ecx /* my rta into ecx */
- lea SYS_vfork,%eax
- KERNCALL
- jb verror
-vforkok:
- cmpl $0,%edx /* child process? */
- jne child /* yes */
- jmp parent
-#ifdef _THREAD_SAFE
- /*
- * Threaded version using __error().
- */
- .globl CNAME(__error)
- .type CNAME(__error),@function
-verror:
- pushl %eax
-#ifdef PIC
- call PIC_PLT(CNAME(__error))
-#else
- call CNAME(__error)
-#endif
- popl %ecx
- movl %ecx,(%eax)
- movl $-1,%eax
- movl $-1,%edx
-#else /* !_THREAD_SAFE */
- /*
- * Non-threaded version using global errno.
- */
- .globl CNAME(errno)
-verror:
-#ifdef PIC
- PIC_PROLOGUE
- movl PIC_GOT(CNAME(errno)), %edx
- movl %eax,(%edx)
- PIC_EPILOGUE
-#else
- movl %eax,CNAME(errno)
-#endif
- movl $-1,%eax
-#endif /* !_THREAD_SAFE */
- jmp %ecx
-child:
- movl $0,%eax
-parent:
- jmp %ecx
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