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authorTheo de Raadt <deraadt@cvs.openbsd.org>1995-11-01 17:38:03 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>1995-11-01 17:38:03 +0000
commit952758d5aa005809245ccafdd31eeba9e0d12561 (patch)
tree70410983e596456ae2ff3d534b8a833947bf529f /lib
parent5025c83625fbec13ffb1775535d37a612dcf48d1 (diff)
vax c runtime support
Diffstat (limited to 'lib')
-rw-r--r--lib/csu/vax/Makefile31
-rw-r--r--lib/csu/vax/crt0.c115
2 files changed, 146 insertions, 0 deletions
diff --git a/lib/csu/vax/Makefile b/lib/csu/vax/Makefile
new file mode 100644
index 00000000000..a107a7b6b45
--- /dev/null
+++ b/lib/csu/vax/Makefile
@@ -0,0 +1,31 @@
+# from: @(#)Makefile 5.6 (Berkeley) 5/22/91
+# $Id: Makefile,v 1.1 1995/11/01 17:38:00 deraadt Exp $
+
+CFLAGS+= -DLIBC_SCCS -I${.CURDIR}/..
+OBJS= crt0.o gcrt0.o scrt0.o
+CLEANFILES+= core a.out
+
+all: ${OBJS}
+
+crt0.o: crt0.c
+ ${COMPILE.c} -DCRT0 -UDYNAMIC ${.ALLSRC}
+ ${LD} -x -r ${.TARGET}
+ mv a.out ${.TARGET}
+
+gcrt0.o: crt0.c
+ ${COMPILE.c} -DMCRT0 ${.ALLSRC} -o ${.TARGET}
+ ${LD} -x -r ${.TARGET}
+ mv a.out ${.TARGET}
+
+scrt0.o: crt0.c
+ ${COMPILE.c} -DSCRT0 ${.ALLSRC} -o ${.TARGET}
+ ${LD} -x -r ${.TARGET}
+ mv a.out ${.TARGET}
+
+install:
+ install ${COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \
+ ${DESTDIR}/usr/lib
+
+depend lint tags:
+
+.include <bsd.prog.mk>
diff --git a/lib/csu/vax/crt0.c b/lib/csu/vax/crt0.c
new file mode 100644
index 00000000000..5c53d6b94e9
--- /dev/null
+++ b/lib/csu/vax/crt0.c
@@ -0,0 +1,115 @@
+/* $NetBSD: crt0.c,v 1.1.2.1 1995/10/15 19:40:04 ragge Exp $ */
+/*
+ * Copyright (c) 1993 Paul Kranenburg
+ * 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 Paul Kranenburg.
+ * 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.
+ *
+ */
+
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "%W% (Erasmus) %G%";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/param.h>
+#include <stdlib.h>
+
+#include "common.h"
+
+extern void start __P((void)) asm("start");
+
+void
+start()
+{
+ 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;
+ register char **argv, *ap;
+
+#ifdef lint
+ kfp = 0;
+ initcode = initcode = 0;
+#else /* not lint */
+ /* make kfp point to the arguments on stack */
+ asm ("movl sp, %0" : "=r" (kfp));
+#endif /* not lint */
+ argv = &kfp->kargv[0];
+ environ = argv + kfp->kargc + 1;
+
+ if (ap = argv[0])
+ if ((__progname = _strrchr(ap, '/')) == NULL)
+ __progname = ap;
+ else
+ ++__progname;
+
+#ifdef DYNAMIC
+ /* ld(1) convention: if DYNAMIC = 0 then statically linked */
+#ifdef stupid_gcc
+ if (&_DYNAMIC)
+#else
+ if ( ({volatile caddr_t x = (caddr_t)&_DYNAMIC; x; }) )
+#endif
+ __load_rtld(&_DYNAMIC);
+#endif /* DYNAMIC */
+
+asm("eprol:");
+
+#ifdef MCRT0
+ atexit(_mcleanup);
+ monstartup((u_long)&eprol, (u_long)&etext);
+#endif MCRT0
+
+asm ("__callmain:"); /* Defined for the benefit of debuggers */
+ exit(main(kfp->kargc, argv, environ));
+}
+
+#ifdef DYNAMIC
+ asm(" ___syscall:");
+ asm(" .word 0"); /* no registers to save */
+ asm(" movl 4(ap), r0"); /* get syscall number */
+ asm(" subl3 $1,(ap)+,(ap)"); /* n-1 args to syscall */
+ asm(" chmk r0"); /* do system call */
+ asm(" jcs 1f"); /* check error */
+ asm(" ret"); /* return */
+ asm(" 1: movl $-1, r0");
+ asm(" ret");
+
+#endif /* DYNAMIC */
+
+#include "common.c"
+
+#ifdef MCRT0
+asm (" .text");
+asm ("_eprol:");
+#endif