From f9ab90d9d6d02989a075d0f0074496d5b1045e4b Mon Sep 17 00:00:00 2001
From: rgrimes <rgrimes@FreeBSD.org>
Date: Fri, 27 May 1994 12:33:43 +0000
Subject: BSD 4.4 Lite Usr.bin Sources

---
 usr.bin/gprof/mips.c | 112 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)
 create mode 100644 usr.bin/gprof/mips.c

(limited to 'usr.bin/gprof/mips.c')

diff --git a/usr.bin/gprof/mips.c b/usr.bin/gprof/mips.c
new file mode 100644
index 0000000..295d64e
--- /dev/null
+++ b/usr.bin/gprof/mips.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This software was developed by the Computer Systems Engineering group
+ * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+ * contributed to Berkeley. Modified by Ralph Campbell for mips.
+ *
+ * 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 University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
+ *
+ * From: sparc.c 5.1 (Berkeley) 7/7/92
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)mips.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#include	"gprof.h"
+
+    /*
+     *	a namelist entry to be the child of indirect calls
+     */
+nltype	indirectchild = {
+	"(*)" ,				/* the name */
+	(unsigned long) 0 ,		/* the pc entry point */
+	(unsigned long) 0 ,		/* entry point aligned to histogram */
+	(double) 0.0 ,			/* ticks in this routine */
+	(double) 0.0 ,			/* cumulative ticks in children */
+	(long) 0 ,			/* how many times called */
+	(long) 0 ,			/* times called by live arcs */
+	(long) 0 ,			/* how many calls to self */
+	(double) 1.0 ,			/* propagation fraction */
+	(double) 0.0 ,			/* self propagation time */
+	(double) 0.0 ,			/* child propagation time */
+	(short) 0 ,			/* print flag */
+	(short) 0 ,			/* flags */
+	(int) 0 ,			/* index in the graph list */
+	(int) 0 , 			/* graph call chain top-sort order */
+	(int) 0 ,			/* internal number of cycle on */
+	(int) 0 ,			/* number of live parent arcs */
+	(struct nl *) &indirectchild ,	/* pointer to head of cycle */
+	(struct nl *) 0 ,		/* pointer to next member of cycle */
+	(arctype *) 0 ,			/* list of caller arcs */
+	(arctype *) 0 			/* list of callee arcs */
+};
+
+findcall(parentp, p_lowpc, p_highpc)
+	nltype		*parentp;
+	unsigned long	p_lowpc;
+	unsigned long	p_highpc;
+{
+	register u_long pc;
+	nltype *childp;
+	unsigned long destpc;
+	register long op;
+	register int off;
+
+	if (textspace == 0)
+		return;
+	if (p_lowpc < s_lowpc)
+		p_lowpc = s_lowpc;
+	if (p_highpc > s_highpc)
+		p_highpc = s_highpc;
+
+	for (pc = p_lowpc; pc < p_highpc; pc += 4) {
+		off = pc - s_lowpc;
+		op = *(u_long *)&textspace[off];
+		if ((op & 0xfc000000) == 0x0c000000) {
+			/*
+			 * a jal insn -- check that this
+			 * is the address of a function.
+			 */
+			off = (op & 0x03ffffff) << 2;
+			destpc = (pc & 0xf0000000) | off;
+			if (destpc >= s_lowpc && destpc <= s_highpc) {
+				childp = nllookup(destpc);
+				if (childp != 0 && childp->value == destpc)
+					addarc(parentp, childp, 0L);
+			}
+		} else if ((op & 0xfc00f83f) == 0x0000f809)
+			/*
+			 * A jalr -- an indirect call.
+			 */
+			addarc(parentp, &indirectchild, 0L);
+	}
+}
-- 
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