Annotation of src/usr.bin/gprof/sparc.c, Revision 1.3
1.3 ! mickey 1: /* $OpenBSD: sparc.c,v 1.2 1996/06/26 05:34:00 deraadt Exp $ */
1.1 deraadt 2: /* $NetBSD: sparc.c,v 1.4 1995/04/19 07:16:24 cgd Exp $ */
3:
4: /*
5: * Copyright (c) 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This software was developed by the Computer Systems Engineering group
9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10: * contributed to Berkeley.
11: *
12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: * 3. All advertising materials mentioning features or use of this software
21: * must display the following acknowledgement:
22: * This product includes software developed by the University of
23: * California, Berkeley and its contributors.
24: * 4. Neither the name of the University nor the names of its contributors
25: * may be used to endorse or promote products derived from this software
26: * without specific prior written permission.
27: *
28: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38: * SUCH DAMAGE.
39: */
40:
41: #ifndef lint
42: #if 0
43: static char sccsid[] = "@(#)sparc.c 8.1 (Berkeley) 6/6/93";
44: #else
1.3 ! mickey 45: static char rcsid[] = "$OpenBSD: sparc.c,v 1.2 1996/06/26 05:34:00 deraadt Exp $";
1.1 deraadt 46: #endif
47: #endif /* not lint */
48:
49: #include "gprof.h"
50:
51: /*
52: * a namelist entry to be the child of indirect calls
53: */
54: nltype indirectchild = {
55: "(*)" , /* the name */
56: (unsigned long) 0 , /* the pc entry point */
57: (unsigned long) 0 , /* entry point aligned to histogram */
58: (double) 0.0 , /* ticks in this routine */
59: (double) 0.0 , /* cumulative ticks in children */
60: (long) 0 , /* how many times called */
61: (long) 0 , /* times called by live arcs */
62: (long) 0 , /* how many calls to self */
63: (double) 1.0 , /* propagation fraction */
64: (double) 0.0 , /* self propagation time */
65: (double) 0.0 , /* child propagation time */
66: (short) 0 , /* print flag */
67: (short) 0 , /* flags */
68: (int) 0 , /* index in the graph list */
69: (int) 0 , /* graph call chain top-sort order */
70: (int) 0 , /* internal number of cycle on */
71: (int) 0 , /* number of live parent arcs */
72: (struct nl *) &indirectchild , /* pointer to head of cycle */
73: (struct nl *) 0 , /* pointer to next member of cycle */
74: (arctype *) 0 , /* list of caller arcs */
75: (arctype *) 0 /* list of callee arcs */
76: };
77:
1.3 ! mickey 78: void
1.1 deraadt 79: findcall(parentp, p_lowpc, p_highpc)
80: nltype *parentp;
81: unsigned long p_lowpc;
82: unsigned long p_highpc;
83: {
84: register u_long pc;
85: nltype *childp;
86: unsigned long destpc;
87: register long op;
88: register int off;
89:
90: if (textspace == 0)
91: return;
92: if (p_lowpc < s_lowpc)
93: p_lowpc = s_lowpc;
94: if (p_highpc > s_highpc)
95: p_highpc = s_highpc;
96:
97: for (pc = p_lowpc; pc < p_highpc; pc += 4) {
98: off = pc - s_lowpc;
99: op = *(u_long *)&textspace[off];
100: if ((op & 0xc0000000) == 0x40000000) {
101: /*
102: * a pc relative call insn -- check that this
103: * is the address of a function.
104: */
105: off = (op & 0x3fffffff) << 2;
106: destpc = pc + off;
107: if (destpc >= s_lowpc && destpc <= s_highpc) {
108: childp = nllookup(destpc);
109: if (childp != 0 && childp->value == destpc)
110: addarc(parentp, childp, 0L);
111: }
112: } else if ((op & 0xfff80000) == 0x9fc00000)
113: /*
114: * A jmpl with rd = 15 (%o7) -- an indirect call.
115: */
116: addarc(parentp, &indirectchild, 0L);
117: }
118: }