1*75fd0b74Schristos /*
2*75fd0b74Schristos * Copyright (c) 1983, 1993
3*75fd0b74Schristos * The Regents of the University of California. All rights reserved.
4*75fd0b74Schristos *
5*75fd0b74Schristos * Redistribution and use in source and binary forms, with or without
6*75fd0b74Schristos * modification, are permitted provided that the following conditions
7*75fd0b74Schristos * are met:
8*75fd0b74Schristos * 1. Redistributions of source code must retain the above copyright
9*75fd0b74Schristos * notice, this list of conditions and the following disclaimer.
10*75fd0b74Schristos * 2. Redistributions in binary form must reproduce the above copyright
11*75fd0b74Schristos * notice, this list of conditions and the following disclaimer in the
12*75fd0b74Schristos * documentation and/or other materials provided with the distribution.
13*75fd0b74Schristos * 3. Neither the name of the University nor the names of its contributors
14*75fd0b74Schristos * may be used to endorse or promote products derived from this software
15*75fd0b74Schristos * without specific prior written permission.
16*75fd0b74Schristos *
17*75fd0b74Schristos * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18*75fd0b74Schristos * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19*75fd0b74Schristos * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20*75fd0b74Schristos * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21*75fd0b74Schristos * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22*75fd0b74Schristos * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23*75fd0b74Schristos * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24*75fd0b74Schristos * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25*75fd0b74Schristos * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26*75fd0b74Schristos * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27*75fd0b74Schristos * SUCH DAMAGE.
28*75fd0b74Schristos */
29*75fd0b74Schristos #include "gprof.h"
30*75fd0b74Schristos #include "search_list.h"
31*75fd0b74Schristos #include "source.h"
32*75fd0b74Schristos #include "symtab.h"
33*75fd0b74Schristos #include "cg_arcs.h"
34*75fd0b74Schristos #include "corefile.h"
35*75fd0b74Schristos #include "hist.h"
36*75fd0b74Schristos
37*75fd0b74Schristos /*
38*75fd0b74Schristos * opcode of the `callf' instruction
39*75fd0b74Schristos */
40*75fd0b74Schristos #define CALL (0xc0000000)
41*75fd0b74Schristos
42*75fd0b74Schristos void sparc_find_call (Sym *, bfd_vma, bfd_vma);
43*75fd0b74Schristos
44*75fd0b74Schristos void
sparc_find_call(Sym * parent,bfd_vma p_lowpc,bfd_vma p_highpc)45*75fd0b74Schristos sparc_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
46*75fd0b74Schristos {
47*75fd0b74Schristos bfd_vma pc, dest_pc;
48*75fd0b74Schristos unsigned int insn;
49*75fd0b74Schristos Sym *child;
50*75fd0b74Schristos
51*75fd0b74Schristos DBG (CALLDEBUG, printf ("[find_call] %s: 0x%lx to 0x%lx\n",
52*75fd0b74Schristos parent->name, (unsigned long) p_lowpc,
53*75fd0b74Schristos (unsigned long) p_highpc));
54*75fd0b74Schristos for (pc = (p_lowpc + 3) & ~(bfd_vma) 3; pc < p_highpc; pc += 4)
55*75fd0b74Schristos {
56*75fd0b74Schristos insn = bfd_get_32 (core_bfd, ((unsigned char *) core_text_space
57*75fd0b74Schristos + pc - core_text_sect->vma));
58*75fd0b74Schristos if (insn & CALL)
59*75fd0b74Schristos {
60*75fd0b74Schristos DBG (CALLDEBUG,
61*75fd0b74Schristos printf ("[find_call] 0x%lx: callf", (unsigned long) pc));
62*75fd0b74Schristos /*
63*75fd0b74Schristos * Regular pc relative addressing check that this is the
64*75fd0b74Schristos * address of a function.
65*75fd0b74Schristos */
66*75fd0b74Schristos dest_pc = pc + (((bfd_signed_vma) (insn & 0x3fffffff)
67*75fd0b74Schristos ^ 0x20000000) - 0x20000000);
68*75fd0b74Schristos if (hist_check_address (dest_pc))
69*75fd0b74Schristos {
70*75fd0b74Schristos child = sym_lookup (&symtab, dest_pc);
71*75fd0b74Schristos if (child)
72*75fd0b74Schristos {
73*75fd0b74Schristos DBG (CALLDEBUG,
74*75fd0b74Schristos printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n",
75*75fd0b74Schristos (unsigned long) dest_pc, child->name,
76*75fd0b74Schristos (unsigned long) child->addr));
77*75fd0b74Schristos if (child->addr == dest_pc)
78*75fd0b74Schristos {
79*75fd0b74Schristos /* a hit: */
80*75fd0b74Schristos arc_add (parent, child, (unsigned long) 0);
81*75fd0b74Schristos continue;
82*75fd0b74Schristos }
83*75fd0b74Schristos }
84*75fd0b74Schristos }
85*75fd0b74Schristos /*
86*75fd0b74Schristos * Something funny going on.
87*75fd0b74Schristos */
88*75fd0b74Schristos DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
89*75fd0b74Schristos }
90*75fd0b74Schristos }
91*75fd0b74Schristos }
92