Commit | Line | Data |
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252b5132 | 1 | /* |
5ec4a8f3 NC |
2 | * Copyright (c) 1983, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
252b5132 | 4 | * |
5ec4a8f3 NC |
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. | |
16 | * | |
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. | |
252b5132 RH |
28 | */ |
29 | #include "gprof.h" | |
6d9c411a AM |
30 | #include "search_list.h" |
31 | #include "source.h" | |
32 | #include "symtab.h" | |
252b5132 RH |
33 | #include "cg_arcs.h" |
34 | #include "corefile.h" | |
35 | #include "hist.h" | |
252b5132 RH |
36 | |
37 | /* | |
38 | * opcode of the `callf' instruction | |
39 | */ | |
40 | #define CALL (0xc0000000) | |
41 | ||
3e8f6abf | 42 | void sparc_find_call (Sym *, bfd_vma, bfd_vma); |
5789ecea | 43 | |
252b5132 | 44 | void |
3e8f6abf | 45 | sparc_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc) |
252b5132 | 46 | { |
6d9c411a | 47 | bfd_vma pc, dest_pc; |
1355568a | 48 | unsigned int insn; |
252b5132 RH |
49 | Sym *child; |
50 | ||
252b5132 RH |
51 | if (core_text_space == 0) |
52 | { | |
53 | return; | |
54 | } | |
55 | if (p_lowpc < s_lowpc) | |
56 | { | |
57 | p_lowpc = s_lowpc; | |
58 | } | |
59 | if (p_highpc > s_highpc) | |
60 | { | |
61 | p_highpc = s_highpc; | |
62 | } | |
63 | DBG (CALLDEBUG, printf ("[find_call] %s: 0x%lx to 0x%lx\n", | |
fdcf7d43 ILT |
64 | parent->name, (unsigned long) p_lowpc, |
65 | (unsigned long) p_highpc)); | |
1355568a | 66 | for (pc = (p_lowpc + 3) & ~(bfd_vma) 3; pc < p_highpc; pc += 4) |
252b5132 | 67 | { |
6d9c411a AM |
68 | insn = bfd_get_32 (core_bfd, ((unsigned char *) core_text_space |
69 | + pc - core_text_sect->vma)); | |
70 | if (insn & CALL) | |
252b5132 RH |
71 | { |
72 | DBG (CALLDEBUG, | |
6d9c411a | 73 | printf ("[find_call] 0x%lx: callf", (unsigned long) pc)); |
252b5132 RH |
74 | /* |
75 | * Regular pc relative addressing check that this is the | |
76 | * address of a function. | |
77 | */ | |
6d9c411a AM |
78 | dest_pc = pc + (((bfd_signed_vma) (insn & 0x3fffffff) |
79 | ^ 0x20000000) - 0x20000000); | |
252b5132 RH |
80 | if (dest_pc >= s_lowpc && dest_pc <= s_highpc) |
81 | { | |
82 | child = sym_lookup (&symtab, dest_pc); | |
83 | DBG (CALLDEBUG, | |
84 | printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n", | |
fdcf7d43 ILT |
85 | (unsigned long) dest_pc, child->name, |
86 | (unsigned long) child->addr)); | |
252b5132 RH |
87 | if (child->addr == dest_pc) |
88 | { | |
89 | /* a hit: */ | |
90 | arc_add (parent, child, (unsigned long) 0); | |
91 | continue; | |
92 | } | |
93 | } | |
94 | /* | |
95 | * Something funny going on. | |
96 | */ | |
97 | DBG (CALLDEBUG, printf ("\tbut it's a botch\n")); | |
98 | } | |
99 | } | |
100 | } |