Annotation of src/usr.bin/gprof/sparc.c, Revision 1.6
1.6 ! espie 1: /* $OpenBSD: sparc.c,v 1.5 2003/06/03 02:56:08 millert 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.
1.5 millert 20: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
38: #if 0
39: static char sccsid[] = "@(#)sparc.c 8.1 (Berkeley) 6/6/93";
40: #else
1.6 ! espie 41: static char rcsid[] = "$OpenBSD: sparc.c,v 1.5 2003/06/03 02:56:08 millert Exp $";
1.1 deraadt 42: #endif
43: #endif /* not lint */
44:
45: #include "gprof.h"
46:
47: /*
48: * a namelist entry to be the child of indirect calls
49: */
50: nltype indirectchild = {
51: "(*)" , /* the name */
52: (unsigned long) 0 , /* the pc entry point */
53: (unsigned long) 0 , /* entry point aligned to histogram */
54: (double) 0.0 , /* ticks in this routine */
55: (double) 0.0 , /* cumulative ticks in children */
56: (long) 0 , /* how many times called */
57: (long) 0 , /* times called by live arcs */
58: (long) 0 , /* how many calls to self */
59: (double) 1.0 , /* propagation fraction */
60: (double) 0.0 , /* self propagation time */
61: (double) 0.0 , /* child propagation time */
62: (short) 0 , /* print flag */
63: (short) 0 , /* flags */
64: (int) 0 , /* index in the graph list */
65: (int) 0 , /* graph call chain top-sort order */
66: (int) 0 , /* internal number of cycle on */
67: (int) 0 , /* number of live parent arcs */
68: (struct nl *) &indirectchild , /* pointer to head of cycle */
69: (struct nl *) 0 , /* pointer to next member of cycle */
70: (arctype *) 0 , /* list of caller arcs */
71: (arctype *) 0 /* list of callee arcs */
72: };
73:
1.3 mickey 74: void
1.6 ! espie 75: findcall(nltype *parentp, unsigned long p_lowpc, unsigned long p_highpc)
1.1 deraadt 76: {
1.6 ! espie 77: unsigned long pc;
1.1 deraadt 78: nltype *childp;
79: unsigned long destpc;
1.4 mpech 80: long op;
81: int off;
1.1 deraadt 82:
83: if (textspace == 0)
84: return;
85: if (p_lowpc < s_lowpc)
86: p_lowpc = s_lowpc;
87: if (p_highpc > s_highpc)
88: p_highpc = s_highpc;
89:
90: for (pc = p_lowpc; pc < p_highpc; pc += 4) {
91: off = pc - s_lowpc;
1.6 ! espie 92: op = *(unsigned long *)&textspace[off];
1.1 deraadt 93: if ((op & 0xc0000000) == 0x40000000) {
94: /*
95: * a pc relative call insn -- check that this
96: * is the address of a function.
97: */
98: off = (op & 0x3fffffff) << 2;
99: destpc = pc + off;
100: if (destpc >= s_lowpc && destpc <= s_highpc) {
101: childp = nllookup(destpc);
102: if (childp != 0 && childp->value == destpc)
103: addarc(parentp, childp, 0L);
104: }
105: } else if ((op & 0xfff80000) == 0x9fc00000)
106: /*
107: * A jmpl with rd = 15 (%o7) -- an indirect call.
108: */
109: addarc(parentp, &indirectchild, 0L);
110: }
111: }