CSU source for the Sparc copied over from the FreeBSD/Alpha sources.

4 files changed, 237 insertions, 0 deletions

diff --git a/lib/csu/sparc/Makefile b/lib/csu/sparc/Makefile
new file mode 100644
index 0000000..2c101c3
--- /dev/null
+++ b/lib/csu/sparc/Makefile
@@ -0,0 +1,26 @@
+#
+# $FreeBSD$
+#
+
+SRCS=		crt1.c crtbegin.c crtend.c
+OBJS=		crt1.o crtbegin.o crtend.o
+OBJS+=		gcrt1.o
+SOBJS=		crtbegin.So crtend.So
+CFLAGS+=	-Wall -Wno-unused
+NOMAN=		true
+NOPIC=		true
+NOPROFILE=	true
+INTERNALLIB=	true
+
+all: ${OBJS} ${SOBJS}
+
+gcrt1.o:	crt1.c
+	${CC} ${CFLAGS} -DGCRT -c -o gcrt1.o ${.CURDIR}/crt1.c
+
+realinstall:
+.for file in ${OBJS} ${SOBJS}
+	${INSTALL} ${COPY} -o ${LIBOWN} -g ${LIBGRP} -m ${LIBMODE} \
+	    ${file} ${DESTDIR}${LIBDIR}/${file:S/.So$/S.o/}
+.endfor
+
+.include <bsd.lib.mk>
diff --git a/lib/csu/sparc/crt1.c b/lib/csu/sparc/crt1.c
new file mode 100644
index 0000000..095effc
--- /dev/null
+++ b/lib/csu/sparc/crt1.c
@@ -0,0 +1,103 @@
+/*-
+ * Copyright 1996-1998 John D. Polstra.
+ * All rights reserved.
+ * 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 by Christopher G. Demetriou
+ *    for the NetBSD Project.
+ * 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>
+
+struct Struct_Obj_Entry;
+struct ps_strings;
+
+#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
+
+char **environ;
+char *__progname = "";
+
+/* The entry function. */
+void
+_start(char **ap,
+	void (*cleanup)(void),			/* from shared loader */
+	struct Struct_Obj_Entry *obj,		/* from shared loader */
+	struct ps_strings *ps_strings)
+{
+	int argc;
+	char **argv;
+	char **env;
+
+	argc = * (long *) ap;
+	argv = ap + 1;
+	env  = ap + 2 + argc;
+	environ = env;
+	if(argc > 0 && argv[0] != NULL) {
+		char *s;
+		__progname = argv[0];
+		for (s = __progname; *s != '\0'; s++)
+			if (*s == '/')
+				__progname = s + 1;
+	}
+
+	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
diff --git a/lib/csu/sparc/crtbegin.c b/lib/csu/sparc/crtbegin.c
new file mode 100644
index 0000000..4cb2903
--- /dev/null
+++ b/lib/csu/sparc/crtbegin.c
@@ -0,0 +1,77 @@
+/*-
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+typedef void (*fptr)(void);
+
+static fptr ctor_list[1] __attribute__((section(".ctors"))) = { (fptr) -1 };
+static fptr dtor_list[1] __attribute__((section(".dtors"))) = { (fptr) -1 };
+
+/* Both do_ctors() and do_dtors() live in .text (the default) */
+static void
+do_ctors(void)
+{
+    fptr *fpp;
+
+    for(fpp = ctor_list + 1;  *fpp != 0;  ++fpp)
+	(**fpp)();
+}
+
+static void
+do_dtors(void)
+{
+    fptr *fpp;
+
+    for(fpp = dtor_list + 1;  *fpp != 0;  ++fpp)
+	;
+    while(--fpp > dtor_list)
+	(**fpp)();
+}
+
+/*
+ * On very large programs, it is possible to get a relocation overflow
+ * of the 21-bit BSR displacements.  It is particularly likely for the
+ * calls from _init() and _fini(), because they are in separate sections.
+ * Avoid the problem by forcing indirect calls.
+ */
+static void (*p_do_ctors)(void) = do_ctors;
+static void (*p_do_dtors)(void) = do_dtors;
+
+extern void _init(void) __attribute__((section(".init")));
+
+void
+_init(void)
+{
+	(*p_do_ctors)();
+}
+
+extern void _fini(void) __attribute__((section(".fini")));
+
+void
+_fini(void)
+{
+	(*p_do_dtors)();
+}
diff --git a/lib/csu/sparc/crtend.c b/lib/csu/sparc/crtend.c
new file mode 100644
index 0000000..d6228a3
--- /dev/null
+++ b/lib/csu/sparc/crtend.c
@@ -0,0 +1,31 @@
+/*-
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+typedef void (*fptr)(void);
+
+static fptr ctor_end[1] __attribute__((section(".ctors"))) = { 0 };
+static fptr dtor_end[1] __attribute__((section(".dtors"))) = { 0 };