From 1278735b510ffea74f437b8cbedf39854fc80caa Mon Sep 17 00:00:00 2001
From: tsubai <tsubai@NetBSD.org>
Date: Mon, 23 Jul 2001 20:43:31 +0000
Subject: [PATCH] .init/.fini support.

---
 lib/csu/sh3_elf/Makefile   |  4 +-
 lib/csu/sh3_elf/dot_init.h | 75 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 lib/csu/sh3_elf/dot_init.h

diff --git a/lib/csu/sh3_elf/Makefile b/lib/csu/sh3_elf/Makefile
index 0c83bae8fd28..793b51c80350 100644
--- a/lib/csu/sh3_elf/Makefile
+++ b/lib/csu/sh3_elf/Makefile
@@ -1,3 +1,5 @@
-#	$NetBSD: Makefile,v 1.1 1999/10/07 11:56:29 msaitoh Exp $
+#	$NetBSD: Makefile,v 1.2 2001/07/23 20:43:31 tsubai Exp $
+
+CPPFLAGS+= -I- -I${.CURDIR}
 
 .include "${.CURDIR}/../common_elf/Makefile.inc"
diff --git a/lib/csu/sh3_elf/dot_init.h b/lib/csu/sh3_elf/dot_init.h
new file mode 100644
index 000000000000..f7763407640c
--- /dev/null
+++ b/lib/csu/sh3_elf/dot_init.h
@@ -0,0 +1,75 @@
+/*	$NetBSD: dot_init.h,v 1.1 2001/07/23 20:43:31 tsubai 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.
+ */
+
+#include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
+
+/*
+ * 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" \
+		#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")
+
+#ifdef __LEADING_UNDERSCORE
+#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, _init_fallthru)
+#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, _fini_fallthru)
+#else
+#define MD_INIT_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.init, init_fallthru)
+#define MD_FINI_SECTION_PROLOGUE MD_SECTION_PROLOGUE(.fini, fini_fallthru)
+#endif
+
+#define MD_INIT_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.init)
+#define MD_FINI_SECTION_EPILOGUE MD_SECTION_EPILOGUE(.fini)