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GC dead code. If we want to stay polite to the foreign compilers,

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we can find another way to issue an #error, but using a preprocessed
assembler for that purpose and clobbering libc.a with an empty .o
just for the sake of #error reporting is way too much of a burden.
This commit is contained in:
ru 2006-09-05 16:21:26 +00:00
parent 37beee947f
commit 32ef646170
2 changed files with 1 additions and 63 deletions
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2
lib/libc/i386/gen/Makefile.inc
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@ -1,6 +1,6 @@
# @(#)Makefile.inc 8.1 (Berkeley) 6/4/93
# $FreeBSD$
SRCS+= _ctx_start.S _setjmp.S _set_tp.c alloca.S fabs.S \
SRCS+= _ctx_start.S _setjmp.S _set_tp.c fabs.S \
flt_rounds.c infinity.c ldexp.c makecontext.c modf.S \
rfork_thread.S setjmp.S signalcontext.c sigsetjmp.S

62
lib/libc/i386/gen/alloca.S
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@ -1,62 +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(__GNUC__) && !defined(__INTEL_COMPILER)
#error Please add alloca support for this compiler on FreeBSD.
#if defined(LIBC_SCCS) && !defined(lint)
.asciz "@(#)alloca.s 5.2 (Berkeley) 5/14/90"
#endif /* LIBC_SCCS and not lint */
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
/* like alloc, but automatic automatic free in return */
ENTRY(alloca)
popl %edx /* pop return addr */
popl %eax /* pop amount to allocate */
movl %esp,%ecx
addl $3,%eax /* round up to next word */
andl $0xfffffffc,%eax
subl %eax,%esp
movl %esp,%eax /* base of newly allocated space */
pushl 8(%ecx) /* copy possible saved registers */
pushl 4(%ecx)
pushl 0(%ecx)
pushl %eax /* dummy to pop at callsite */
jmp *%edx /* "return" */
#endif /*!__GNUC__*/