1*a9fa9459Szrj /*
2*a9fa9459Szrj * Copyright (c) 1983, 1993
3*a9fa9459Szrj * The Regents of the University of California. All rights reserved.
4*a9fa9459Szrj *
5*a9fa9459Szrj * Redistribution and use in source and binary forms, with or without
6*a9fa9459Szrj * modification, are permitted provided that the following conditions
7*a9fa9459Szrj * are met:
8*a9fa9459Szrj * 1. Redistributions of source code must retain the above copyright
9*a9fa9459Szrj * notice, this list of conditions and the following disclaimer.
10*a9fa9459Szrj * 2. Redistributions in binary form must reproduce the above copyright
11*a9fa9459Szrj * notice, this list of conditions and the following disclaimer in the
12*a9fa9459Szrj * documentation and/or other materials provided with the distribution.
13*a9fa9459Szrj * 3. Neither the name of the University nor the names of its contributors
14*a9fa9459Szrj * may be used to endorse or promote products derived from this software
15*a9fa9459Szrj * without specific prior written permission.
16*a9fa9459Szrj *
17*a9fa9459Szrj * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18*a9fa9459Szrj * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19*a9fa9459Szrj * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20*a9fa9459Szrj * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21*a9fa9459Szrj * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22*a9fa9459Szrj * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23*a9fa9459Szrj * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24*a9fa9459Szrj * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25*a9fa9459Szrj * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26*a9fa9459Szrj * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27*a9fa9459Szrj * SUCH DAMAGE.
28*a9fa9459Szrj */
29*a9fa9459Szrj #include "gprof.h"
30*a9fa9459Szrj #include "search_list.h"
31*a9fa9459Szrj #include "source.h"
32*a9fa9459Szrj #include "symtab.h"
33*a9fa9459Szrj #include "cg_arcs.h"
34*a9fa9459Szrj #include "corefile.h"
35*a9fa9459Szrj #include "hist.h"
36*a9fa9459Szrj
37*a9fa9459Szrj /*
38*a9fa9459Szrj * opcode of the `callf' instruction
39*a9fa9459Szrj */
40*a9fa9459Szrj #define CALL (0xc0000000)
41*a9fa9459Szrj
42*a9fa9459Szrj void sparc_find_call (Sym *, bfd_vma, bfd_vma);
43*a9fa9459Szrj
44*a9fa9459Szrj void
sparc_find_call(Sym * parent,bfd_vma p_lowpc,bfd_vma p_highpc)45*a9fa9459Szrj sparc_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
46*a9fa9459Szrj {
47*a9fa9459Szrj bfd_vma pc, dest_pc;
48*a9fa9459Szrj unsigned int insn;
49*a9fa9459Szrj Sym *child;
50*a9fa9459Szrj
51*a9fa9459Szrj DBG (CALLDEBUG, printf ("[find_call] %s: 0x%lx to 0x%lx\n",
52*a9fa9459Szrj parent->name, (unsigned long) p_lowpc,
53*a9fa9459Szrj (unsigned long) p_highpc));
54*a9fa9459Szrj for (pc = (p_lowpc + 3) & ~(bfd_vma) 3; pc < p_highpc; pc += 4)
55*a9fa9459Szrj {
56*a9fa9459Szrj insn = bfd_get_32 (core_bfd, ((unsigned char *) core_text_space
57*a9fa9459Szrj + pc - core_text_sect->vma));
58*a9fa9459Szrj if (insn & CALL)
59*a9fa9459Szrj {
60*a9fa9459Szrj DBG (CALLDEBUG,
61*a9fa9459Szrj printf ("[find_call] 0x%lx: callf", (unsigned long) pc));
62*a9fa9459Szrj /*
63*a9fa9459Szrj * Regular pc relative addressing check that this is the
64*a9fa9459Szrj * address of a function.
65*a9fa9459Szrj */
66*a9fa9459Szrj dest_pc = pc + (((bfd_signed_vma) (insn & 0x3fffffff)
67*a9fa9459Szrj ^ 0x20000000) - 0x20000000);
68*a9fa9459Szrj if (hist_check_address (dest_pc))
69*a9fa9459Szrj {
70*a9fa9459Szrj child = sym_lookup (&symtab, dest_pc);
71*a9fa9459Szrj if (child)
72*a9fa9459Szrj {
73*a9fa9459Szrj DBG (CALLDEBUG,
74*a9fa9459Szrj printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n",
75*a9fa9459Szrj (unsigned long) dest_pc, child->name,
76*a9fa9459Szrj (unsigned long) child->addr));
77*a9fa9459Szrj if (child->addr == dest_pc)
78*a9fa9459Szrj {
79*a9fa9459Szrj /* a hit: */
80*a9fa9459Szrj arc_add (parent, child, (unsigned long) 0);
81*a9fa9459Szrj continue;
82*a9fa9459Szrj }
83*a9fa9459Szrj }
84*a9fa9459Szrj }
85*a9fa9459Szrj /*
86*a9fa9459Szrj * Something funny going on.
87*a9fa9459Szrj */
88*a9fa9459Szrj DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
89*a9fa9459Szrj }
90*a9fa9459Szrj }
91*a9fa9459Szrj }
92