Add code code for .init and .fini section fallthroughs and regression

test.

lib/csu/hppa/dot_init.h

@@ -0,0 +1,81 @@
+/* $NetBSD: dot_init.h,v 1.1 2004/05/18 19:19:34 skrll Exp $ */
+
+/*-
+ * Copyright (c) 2004 Nick Hudson
+ * 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.
+ */
+
+#include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
+#include <machine/asm.h>
+
+/*
+ * These must be extern to avoid warnings ("declared static but never defined")
+ * However, only the declaration is extern, the actually __asm() defines them
+ * as static.
+ */
+#define	INIT_FALLTHRU_DECL void init_fallthru(void)
+#define	FINI_FALLTHRU_DECL void fini_fallthru(void)
+
+#define	INIT_FALLTHRU()	init_fallthru()
+#define	FINI_FALLTHRU()	fini_fallthru()
+
+#define	MD_SECTION_PROLOGUE(sect, entry_pt)		\
+		__asm (					\
+		".section "#sect",\"ax\",@progbits	\n"\
+		".proc					\n"\
+		".callinfo frame=64,calls,save_rp,save_sp, entry_gr=4\n"\
+		".entry					\n"\
+		#entry_pt":				\n"\
+		"	stw	%rp, -20(%sp)		\n"\
+		"	copy	%r3, %r1		\n"\
+		"	copy	%sp, %r3		\n"\
+		"	stw,ma	%r1, 64(%sp)		\n"\
+		"	stw	%r4, 8(%r3)		\n"\
+		"	/* fall thru */			\n"\
+		".previous				\n"\
+		".exit					\n"\
+		".procend")
+
+#define	MD_SECTION_EPILOGUE(sect)			\
+		__asm (					\
+		".section "#sect",\"ax\",@progbits	\n"\
+		"	ldw	-20(%r3) ,%rp		\n"\
+		"	ldw	8(%r3), %r4		\n"\
+		"	ldo	64(%r3), %sp		\n"\
+		"	ldw,mb	-64(%sp), %r3		\n"\
+		"	bv,n	%r0(%rp)		\n"\
+		".previous")
+
+#define	MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, init_fallthru)
+#define	MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, fini_fallthru)
+
+#define	MD_INIT_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.init)
+#define	MD_FINI_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.fini)

regress/lib/csu/initfini/arch/hppa/initfini_asm.S

@@ -0,0 +1,22 @@
+/*	$NetBSD: initfini_asm.S,v 1.1 2004/05/18 19:19:34 skrll Exp $	*/
+
+/*
+ * This file placed in the public domain.
+ * Nick Hudson, May 18, 2004.
+ */
+
+#include <machine/asm.h>
+
+	.section .init, "ax", @progbits
+	copy	%r19, %r4
+	bl	i_am_init, %rp
+	nop
+	copy	%r4, %r19
+	.previous
+
+	.section .fini, "ax", @progbits
+	copy	%r19, %r4
+	bl	i_am_fini, %rp
+	nop
+	copy	%r4, %r19
+	.previous