From a2b7af5b3cb7378c2f86144887cb1dd8ae0e1dd4 Mon Sep 17 00:00:00 2001 From: jhb Date: Tue, 13 Nov 2001 06:36:43 +0000 Subject: The kernel already fixes up %eax for parents that return from fork, so don't bother manually fixing up %eax for the parent process by testing the value in %edx and zeroing and already zeroed %eax. --- lib/libc/i386/sys/fork.S | 49 ------------------------------------------------ 1 file changed, 49 deletions(-) delete mode 100644 lib/libc/i386/sys/fork.S (limited to 'lib/libc/i386/sys/fork.S') diff --git a/lib/libc/i386/sys/fork.S b/lib/libc/i386/sys/fork.S deleted file mode 100644 index b5b344b..0000000 --- a/lib/libc/i386/sys/fork.S +++ /dev/null @@ -1,49 +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. - */ - -#if defined(SYSLIBC_RCS) && !defined(lint) - .text - .asciz "$FreeBSD$" -#endif /* SYSLIBC_RCS and not lint */ - -#include "SYS.h" - -SYSCALL(fork) - cmpl $0,%edx /* parent, since %edx == 0 in parent, 1 in child */ - je 1f - movl $0,%eax -1: - ret /* pid = fork(); */ -- cgit v1.1