diff options
Diffstat (limited to 'newlib/libc/sys/sysvi386/crt0.c')
| -rw-r--r-- | newlib/libc/sys/sysvi386/crt0.c | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/newlib/libc/sys/sysvi386/crt0.c b/newlib/libc/sys/sysvi386/crt0.c deleted file mode 100644 index b41c00a3c..000000000 --- a/newlib/libc/sys/sysvi386/crt0.c +++ /dev/null @@ -1,127 +0,0 @@ -/*- - * Copyright (c) 1990 The Regents of the University of California. - * 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 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(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)crt0.c 5.7 (Berkeley) 7/3/91"; -#endif /* LIBC_SCCS and not lint */ - -/* - * C start up routine. - * Robert Henry, UCB, 20 Oct 81 - * - * We make the following (true) assumption: - * 1) The only register variable that we can trust is ebp, - * which points to the base of the kernel calling frame. - */ - -char **environ = (char **)0; -static int fd; - -/* -asm(".text"); -asm(".long 0xc000c000"); -*/ -extern unsigned char etext; -extern unsigned char eprol asm ("eprol"); -/* extern start() asm("start"); */ - -_start(int arg) -{ - struct kframe { - int kargc; - char *kargv[1]; /* size depends on kargc */ - char kargstr[1]; /* size varies */ - char kenvstr[1]; /* size varies */ - }; - /* - * ALL REGISTER VARIABLES!!! - */ - register struct kframe *kfp; /* r10 */ - register char **targv; - register char **argv; - extern int errno; - extern void _mcleanup(); - -#ifdef lint - kfp = 0; - initcode = initcode = 0; -#else not lint -# if 0 - asm("lea 4(%ebp),%ebx"); /* catch it quick */ -# else - kfp = (struct kframe *)&(((int *)(&arg))[-1]); -# endif -#endif not lint - for (argv = targv = &kfp->kargv[0]; *targv++; /* void */) - /* void */ ; - if (targv >= (char **)(*argv)) - --targv; - environ = targv; -asm("eprol:"); - -#ifdef paranoid - /* - * The standard I/O library assumes that file descriptors 0, 1, and 2 - * are open. If one of these descriptors is closed prior to the start - * of the process, I/O gets very confused. To avoid this problem, we - * insure that the first three file descriptors are open before calling - * main(). Normally this is undefined, as it adds two unnecessary - * system calls. - */ - do { - fd = open("/dev/null", 2); - } while (fd >= 0 && fd < 3); - close(fd); -#endif paranoid - -#ifdef MCRT0 - atexit(_mcleanup); - monstartup(&eprol, &etext); -#endif MCRT0 - errno = 0; - exit(main(kfp->kargc, argv, environ)); -} - -#ifdef CRT0 -/* - * null mcount and moncontrol, - * just in case some routine is compiled for profiling - */ -moncontrol(val) - int val; -{ - -} -asm(".globl mcount"); -asm("mcount: ret"); -#endif CRT0 |