diff options
Diffstat (limited to 'lib/csu/i386-elf/crt1_c.c')
-rw-r--r-- | lib/csu/i386-elf/crt1_c.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/lib/csu/i386-elf/crt1_c.c b/lib/csu/i386-elf/crt1_c.c new file mode 100644 index 0000000..c38f267 --- /dev/null +++ b/lib/csu/i386-elf/crt1_c.c @@ -0,0 +1,95 @@ +/* LINTLIBRARY */ +/*- + * 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. + * + * $FreeBSD$ + */ + +#ifndef lint +#ifndef __GNUC__ +#error "GCC is needed to compile this file" +#endif +#endif /* lint */ + +#include <stdlib.h> + +#include "libc_private.h" +#include "crtbrand.c" + +extern int _DYNAMIC; +#pragma weak _DYNAMIC + +typedef void (*fptr)(void); + +extern void _fini(void); +extern void _init(void); +extern int main(int, char **, char **); +extern void _start(char *, ...); + +#ifdef GCRT +extern void _mcleanup(void); +extern void monstartup(void *, void *); +extern int eprol; +extern int etext; +#endif + +char **environ; +const char *__progname = ""; + +void _start1(fptr, int, char *[]) __dead2; + +/* The entry function, C part. */ +void +_start1(fptr cleanup, int argc, char *argv[]) +{ + char **env; + const char *s; + + env = argv + argc + 1; + environ = env; + if (argc > 0 && argv[0] != NULL) { + __progname = argv[0]; + for (s = __progname; *s != '\0'; s++) + if (*s == '/') + __progname = s + 1; + } + + if (&_DYNAMIC != NULL) + atexit(cleanup); + else + _init_tls(); + +#ifdef GCRT + atexit(_mcleanup); +#endif + atexit(_fini); +#ifdef GCRT + monstartup(&eprol, &etext); +__asm__("eprol:"); +#endif + _init(); + exit( main(argc, argv, env) ); +} + +__asm(".hidden _start1"); |