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author | obrien <obrien@FreeBSD.org> | 2001-01-04 10:25:59 +0000 |
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committer | obrien <obrien@FreeBSD.org> | 2001-01-04 10:25:59 +0000 |
commit | 5520f7324953aa82dbef7305f1f2a1a438a97ad1 (patch) | |
tree | 68c3b28c19ebd4641240cb261ed4cd26484d1ea8 /lib/csu/powerpc | |
parent | 46c56dd07a2f2cf472663bd18a381c2b5ae759d3 (diff) | |
download | FreeBSD-src-5520f7324953aa82dbef7305f1f2a1a438a97ad1.zip FreeBSD-src-5520f7324953aa82dbef7305f1f2a1a438a97ad1.tar.gz |
PowerPC version of the C runtime support.
This is an amalgamation of the NetBSD macppc crt0.c (which the copyright
reflects) and the FreeBSD/Alpha crt1.c.
Diffstat (limited to 'lib/csu/powerpc')
-rw-r--r-- | lib/csu/powerpc/crt1.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/lib/csu/powerpc/crt1.c b/lib/csu/powerpc/crt1.c new file mode 100644 index 0000000..6311791 --- /dev/null +++ b/lib/csu/powerpc/crt1.c @@ -0,0 +1,124 @@ +/*- + * Copyright 2001 David E. O'Brien. + * All rights reserved. + * Copyright 1996-1998 John D. Polstra. + * All rights reserved. + * Copyright (c) 1997 Jason R. Thorpe. + * 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 for the + * FreeBSD Project. See http://www.freebsd.org/ for + * information about FreeBSD. + * This product includes software developed for the + * NetBSD Project. See http://www.netbsd.org/ for + * information about NetBSD. + * 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> +#include "crtbrand.c" + +#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 + +/* + * First 5 arguments are specified by the PowerPC SVR4 ABI. + * The last argument, ps_strings, is a BSD extension. + */ +void _start __P((int, char **, char **, const Obj_Entry *, + void (*) __P((void)), struct ps_strings *)); + +char **environ; +char *__progname = ""; + +/* The entry function. */ +void +_start(argc, argv, envp, obj, cleanup, ps_strings) + int argc; + char **argv, **envp; + const Obj_Entry *obj; /* from shared loader */ + void (*cleanup) __P((void)); /* from shared loader */ + struct ps_strings *ps_strings; /* BSD extension */ +{ + char *namep; + + environ = envp; + + if(argc > 0 && argv[0] != NULL) { + char *s; + __progname = argv[0]; + for (s = __progname; *s != '\0'; s++) + if (*s == '/') + __progname = s + 1; + } + + if (ps_strings != (struct ps_strings *)0) + __ps_strings = ps_strings; + + 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 + +/* + * NOTE: Leave the RCS ID _after_ __start(), in case it gets placed in .text. + */ +#ifndef lint +static const char rcsid[] = + "$FreeBSD$"; +#endif |