Preliminary userland bits for OpenBSD/landisk, many things coming from

NetBSD.

3 files changed, 253 insertions, 0 deletions

diff --git a/lib/csu/sh/Makefile b/lib/csu/sh/Makefile
new file mode 100644
index 00000000000..f3043e142f8
--- /dev/null
+++ b/lib/csu/sh/Makefile
@@ -0,0 +1,63 @@
+#	$OpenBSD: Makefile,v 1.1 2006/10/10 22:07:10 miod Exp $
+#	from: @(#)Makefile	8.1 (Berkeley) 6/1/93
+
+CFLAGS+=	-DLIBC_SCCS
+OBJS=		crt0.o gcrt0.o crtbegin.o crtend.o crtbeginS.o crtendS.o
+SRCS=		crt0.c crtbegin.c crtbeginS.c crtend.c crtendS.c
+
+ELFDIR=		${.CURDIR}/../common_elf
+.PATH:		${ELFDIR}
+CFLAGS+=	-I${ELFDIR} -I${.CURDIR}
+
+#PICFLAG?=-fpic
+PICFLAG=
+
+all: ${OBJS}
+
+crt0.o: crt0.c
+	@echo ${COMPILE.c} -DCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}
+	@${COMPILE.c} -DCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+gcrt0.o: crt0.c
+	@echo ${COMPILE.c} -DMCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}
+	@${COMPILE.c} -DMCRT0 ${.CURDIR}/crt0.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtbegin.o: crtbegin.c
+	@echo ${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET}
+	@${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtbeginS.o: crtbeginS.c
+	@echo ${COMPILE.c} ${PICFLAG} -DPIC ${ELFDIR}/crtbeginS.c -o ${.TARGET}
+	@${COMPILE.c} ${PICFLAG} -DPIC ${ELFDIR}/crtbeginS.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtend.o: crtend.c
+	@echo ${COMPILE.c} ${ELFDIR}/crtend.c -o ${.TARGET}
+	@${COMPILE.c} ${ELFDIR}/crtend.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+crtendS.o: crtendS.c
+	@echo ${COMPILE.c} ${PICFLAG} -DPIC ${ELFDIR}/crtendS.c -o ${.TARGET}
+	@${COMPILE.c} ${PICFLAG} -DPIC ${ELFDIR}/crtendS.c -o ${.TARGET}.o
+	@${LD} -x -r -o ${.TARGET} ${.TARGET}.o
+	@rm -f ${.TARGET}.o
+
+realinstall:
+	${INSTALL} ${INSTALL_COPY} -o ${BINOWN} -g ${BINGRP} -m 444 ${OBJS} \
+	    ${DESTDIR}/usr/lib
+
+afterdepend:: .depend
+	@(TMP=/tmp/_depend$$$$; \
+	    sed -e 's/^\([^\.]*\).o[ ]*:/\1.o g\1.o:/' \
+	    < .depend > $$TMP; \
+	mv $$TMP .depend)
+
+.include <bsd.prog.mk>
diff --git a/lib/csu/sh/crt0.c b/lib/csu/sh/crt0.c
new file mode 100644
index 00000000000..af87c4d7bf0
--- /dev/null
+++ b/lib/csu/sh/crt0.c
@@ -0,0 +1,122 @@
+/*	$OpenBSD: crt0.c,v 1.1 2006/10/10 22:07:10 miod Exp $	*/
+/*	$NetBSD: crt0.c,v 1.10 2004/08/26 21:16:41 thorpej Exp $ */
+
+/*
+ * Copyright (c) 1998 Christos Zoulas
+ * 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
+ *          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.
+ * 
+ * <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
+ */
+
+#include <sys/cdefs.h>
+#include <sys/param.h>
+
+#include <machine/asm.h>
+#include <stdlib.h>
+
+static char     *_strrchr(const char *, char);
+
+char    **environ;
+
+char * __progname = "";
+
+char __progname_storage[NAME_MAX+1];
+
+#ifdef MCRT0
+extern void     monstartup(u_long, u_long);
+extern void     _mcleanup(void);
+extern unsigned char _etext, _eprol;
+#endif /* MCRT0 */
+
+extern	void	_start(void);
+void		___start(int, char *[], char *[], void *,
+				const void *, void (*)(void));
+
+__asm(	"	.text			\n"
+	"	.align 2		\n"
+	"	.globl _start		\n"
+	"	.globl __start		\n"
+	"_start:			\n"
+	"__start:			\n"
+	"	mov.l	r9,@-r15	\n"
+	"	bra ___start		\n"
+	"	 mov.l	r8,@-r15");
+
+void
+___start(int argc, char **argv, char **envp, void *ps_strings,
+	const void *obj, void (*cleanup)(void))
+{
+	char *s;
+
+ 	environ = envp;
+
+	if ((__progname = argv[0]) != NULL) {   /* NULL ptr if argc = 0 */
+		if ((__progname = _strrchr(__progname, '/')) == NULL)
+			__progname = argv[0];
+		else
+			__progname++;
+		for (s = __progname_storage; *__progname &&
+		    s < &__progname_storage[sizeof __progname_storage - 1]; )
+			*s++ = *__progname++;
+		*s = '\0';
+		__progname = __progname_storage;
+	}
+
+#if 0
+	atexit(cleanup);
+#endif
+#ifdef MCRT0
+	atexit(_mcleanup);
+	monstartup((u_long)&_eprol, (u_long)&_etext);
+#endif	/* MCRT0 */
+
+#ifndef SCRT0
+        __init();
+#endif
+
+__asm("__callmain:");		/* Defined for the benefit of debuggers */
+	exit(main(argc, argv, envp));
+}
+
+static char *
+_strrchr(const char *p, char ch)
+{
+	char *save;
+
+	for (save = NULL;; ++p) {
+		if (*p == ch)
+			save = (char *)p;
+		if (!*p)
+			return(save);
+	}
+	/* NOTREACHED */
+}
+asm ("  .section \".text\" \n_eprol:");
diff --git a/lib/csu/sh/md_init.h b/lib/csu/sh/md_init.h
new file mode 100644
index 00000000000..96da9375c13
--- /dev/null
+++ b/lib/csu/sh/md_init.h
@@ -0,0 +1,68 @@
+/*	$OpenBSD: md_init.h,v 1.1.1.1 2006/10/10 22:07:10 miod Exp $	*/
+/*	$NetBSD: dot_init.h,v 1.3 2005/12/24 22:02:10 perry Exp $	*/
+
+/*-
+ * Copyright (c) 2001 Ross Harvey
+ * 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 NetBSD
+ *      Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#define MD_SECTION_PROLOGUE(sect, entry_pt)		    \
+		__asm (					    \
+		".section "#sect",\"ax\",@progbits	\n" \
+		"	.globl " #entry_pt "		\n" \
+		"	.type " #entry_pt ",@function	\n" \
+		#entry_pt":				\n" \
+		"	sts.l	pr, @-r15		\n" \
+		"	.align	2			\n" \
+		"	/* fall thru */			\n" \
+		".previous")
+
+#define MD_SECTION_EPILOGUE(sect)			    \
+		__asm (					    \
+		".section "#sect",\"ax\",@progbits	\n" \
+		"	lds.l	@r15+, pr		\n" \
+		"	rts				\n" \
+		"	nop				\n" \
+		".previous")
+
+/*
+ * We need to put the function pointer in our own constant
+ * pool (otherwise it might be too far away to reference).
+ */
+#define MD_SECT_CALL_FUNC(section, func) \
+__asm(".section " #section "\n"		\
+"    mov.l 1f, r1	\n"		\
+"    mova 2f, r0	\n"		\
+"    braf r1		\n"		\
+"     lds r0, pr	\n"		\
+"0:  .p2align 2		\n"		\
+"1:  .long " #func " - 0b \n"		\
+"2:  .previous");