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CSU source for the Sparc copied over from the FreeBSD/Alpha sources.

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This commit is contained in:
Steve Price 2000-04-19 22:53:04 +00:00
parent 79eb2b5421
commit 15ee5562d6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=59405
4 changed files with 237 additions and 0 deletions
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26
lib/csu/sparc/Makefile Normal file
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#
# $FreeBSD$
#
SRCS= crt1.c crtbegin.c crtend.c
OBJS= crt1.o crtbegin.o crtend.o
OBJS+= gcrt1.o
SOBJS= crtbegin.So crtend.So
CFLAGS+= -Wall -Wno-unused
NOMAN= true
NOPIC= true
NOPROFILE= true
INTERNALLIB= true
all: ${OBJS} ${SOBJS}
gcrt1.o: crt1.c
${CC} ${CFLAGS} -DGCRT -c -o gcrt1.o ${.CURDIR}/crt1.c
realinstall:
.for file in ${OBJS} ${SOBJS}
${INSTALL} ${COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
${file} ${DESTDIR}${LIBDIR}/${file:S/.So$/S.o/}
.endfor
.include <bsd.lib.mk>

103
lib/csu/sparc/crt1.c Normal file
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/*-
* Copyright 1996-1998 John D. Polstra.
* All rights reserved.
* Copyright (c) 1995 Christopher G. Demetriou
* 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 Christopher G. Demetriou
* for the NetBSD Project.
* 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.
*
* $FreeBSD$
*/
#ifndef __GNUC__
#error "GCC is needed to compile this file"
#endif
#include <stdlib.h>
struct Struct_Obj_Entry;
struct ps_strings;
#pragma weak _DYNAMIC
extern int _DYNAMIC;
extern void _init(void);
extern void _fini(void);
extern int main(int, char **, char **);
#ifdef GCRT
extern void _mcleanup(void);
extern void monstartup(void *, void *);
extern int eprol;
extern int etext;
#endif
char **environ;
char *__progname = "";
/* The entry function. */
void
_start(char **ap,
void (*cleanup)(void), /* from shared loader */
struct Struct_Obj_Entry *obj, /* from shared loader */
struct ps_strings *ps_strings)
{
int argc;
char **argv;
char **env;
argc = * (long *) ap;
argv = ap + 1;
env = ap + 2 + argc;
environ = env;
if(argc > 0 && argv[0] != NULL) {
char *s;
__progname = argv[0];
for (s = __progname; *s != '\0'; s++)
if (*s == '/')
__progname = s + 1;
}
if (&_DYNAMIC != NULL)
atexit(cleanup);
#ifdef GCRT
atexit(_mcleanup);
#endif
atexit(_fini);
#ifdef GCRT
monstartup(&eprol, &etext);
#endif
_init();
exit( main(argc, argv, env) );
}
#ifdef GCRT
__asm__(".text");
__asm__("eprol:");
__asm__(".previous");
#endif

77
lib/csu/sparc/crtbegin.c Normal file
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/*-
* Copyright 1996-1998 John D. Polstra.
* 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 ``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.
*
* $FreeBSD$
*/
typedef void (*fptr)(void);
static fptr ctor_list[1] __attribute__((section(".ctors"))) = { (fptr) -1 };
static fptr dtor_list[1] __attribute__((section(".dtors"))) = { (fptr) -1 };
/* Both do_ctors() and do_dtors() live in .text (the default) */
static void
do_ctors(void)
{
fptr *fpp;
for(fpp = ctor_list + 1; *fpp != 0; ++fpp)
(**fpp)();
}
static void
do_dtors(void)
{
fptr *fpp;
for(fpp = dtor_list + 1; *fpp != 0; ++fpp)
;
while(--fpp > dtor_list)
(**fpp)();
}
/*
* On very large programs, it is possible to get a relocation overflow
* of the 21-bit BSR displacements. It is particularly likely for the
* calls from _init() and _fini(), because they are in separate sections.
* Avoid the problem by forcing indirect calls.
*/
static void (*p_do_ctors)(void) = do_ctors;
static void (*p_do_dtors)(void) = do_dtors;
extern void _init(void) __attribute__((section(".init")));
void
_init(void)
{
(*p_do_ctors)();
}
extern void _fini(void) __attribute__((section(".fini")));
void
_fini(void)
{
(*p_do_dtors)();
}

31
lib/csu/sparc/crtend.c Normal file
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/*-
* Copyright 1996-1998 John D. Polstra.
* 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 ``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.
*
* $FreeBSD$
*/
typedef void (*fptr)(void);
static fptr ctor_end[1] __attribute__((section(".ctors"))) = { 0 };
static fptr dtor_end[1] __attribute__((section(".dtors"))) = { 0 };