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[binutils.git] / gprof / sparc.c
blob44724c47d3f3b61bfa47308edd991a43b391d261
1 /*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
29 #include "gprof.h"
30 #include "search_list.h"
31 #include "source.h"
32 #include "symtab.h"
33 #include "cg_arcs.h"
34 #include "corefile.h"
35 #include "hist.h"
38 * opcode of the `callf' instruction
40 #define CALL (0xc0000000)
42 void sparc_find_call (Sym *, bfd_vma, bfd_vma);
44 void
45 sparc_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
47 bfd_vma pc, dest_pc;
48 unsigned int insn;
49 Sym *child;
51 DBG (CALLDEBUG, printf ("[find_call] %s: 0x%lx to 0x%lx\n",
52 parent->name, (unsigned long) p_lowpc,
53 (unsigned long) p_highpc));
54 for (pc = (p_lowpc + 3) & ~(bfd_vma) 3; pc < p_highpc; pc += 4)
56 insn = bfd_get_32 (core_bfd, ((unsigned char *) core_text_space
57 + pc - core_text_sect->vma));
58 if (insn & CALL)
60 DBG (CALLDEBUG,
61 printf ("[find_call] 0x%lx: callf", (unsigned long) pc));
63 * Regular pc relative addressing check that this is the
64 * address of a function.
66 dest_pc = pc + (((bfd_signed_vma) (insn & 0x3fffffff)
67 ^ 0x20000000) - 0x20000000);
68 if (hist_check_address (dest_pc))
70 child = sym_lookup (&symtab, dest_pc);
71 if (child)
73 DBG (CALLDEBUG,
74 printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n",
75 (unsigned long) dest_pc, child->name,
76 (unsigned long) child->addr));
77 if (child->addr == dest_pc)
79 /* a hit: */
80 arc_add (parent, child, (unsigned long) 0);
81 continue;
86 * Something funny going on.
88 DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));