diff options
author | tjr <tjr@FreeBSD.org> | 2002-12-21 05:11:39 +0000 |
---|---|---|
committer | tjr <tjr@FreeBSD.org> | 2002-12-21 05:11:39 +0000 |
commit | 4d5ffd678248c59219ce8dcca46e2b5ff680fcfc (patch) | |
tree | a73a0a612cf5e954bb20b43c6011c1be90bff18f /lib/libc | |
parent | b5dd8790dcb56a491989dfc09a86071f56ac70e7 (diff) | |
download | FreeBSD-src-4d5ffd678248c59219ce8dcca46e2b5ff680fcfc.zip FreeBSD-src-4d5ffd678248c59219ce8dcca46e2b5ff680fcfc.tar.gz |
Import newer versions of div() and ldiv() from NetBSD which handle
the -fpcc-struct-return calling convention properly instead of
returning garbage. This may break backwards compatibility with some old
binaries that were compiled when -fno-pcc-struct-return was the default.
Diffstat (limited to 'lib/libc')
-rw-r--r-- | lib/libc/i386/stdlib/div.S | 46 | ||||
-rw-r--r-- | lib/libc/i386/stdlib/ldiv.S | 46 |
2 files changed, 24 insertions, 68 deletions
diff --git a/lib/libc/i386/stdlib/div.S b/lib/libc/i386/stdlib/div.S index bafaf6a..82c5b4f 100644 --- a/lib/libc/i386/stdlib/div.S +++ b/lib/libc/i386/stdlib/div.S @@ -1,41 +1,19 @@ /* - * Copyright (c) 1993 Winning Strategies, Inc. - * 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Winning Strategies, Inc. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. */ #include <machine/asm.h> __FBSDID("$FreeBSD$"); ENTRY(div) - movl 4(%esp),%eax - movl 8(%esp),%ecx - cdq - idiv %ecx - movl %eax,4(%esp) - movl %edx,8(%esp) - ret + pushl %ebx + movl 8(%esp),%ebx + movl 12(%esp),%eax + movl 16(%esp),%ecx + cdq + idiv %ecx + movl %eax,(%ebx) + movl %edx,4(%ebx) + popl %ebx + ret $4 diff --git a/lib/libc/i386/stdlib/ldiv.S b/lib/libc/i386/stdlib/ldiv.S index 578eff0..42ff160 100644 --- a/lib/libc/i386/stdlib/ldiv.S +++ b/lib/libc/i386/stdlib/ldiv.S @@ -1,41 +1,19 @@ /* - * Copyright (c) 1993 Winning Strategies, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Winning Strategies, Inc. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * Written by J.T. Conklin <jtc@netbsd.org>. + * Public domain. */ #include <machine/asm.h> __FBSDID("$FreeBSD$"); ENTRY(ldiv) - movl 4(%esp),%eax - movl 8(%esp),%ecx - cdq - idiv %ecx - movl %eax,4(%esp) - movl %edx,8(%esp) - ret + pushl %ebx + movl 8(%esp),%ebx + movl 12(%esp),%eax + movl 16(%esp),%ecx + cdq + idiv %ecx + movl %eax,(%ebx) + movl %edx,4(%ebx) + popl %ebx + ret $4 |