1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/* Unwinder test program.
Copyright 2006-2018 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef SYMBOL_PREFIX
#define SYMBOL(str) SYMBOL_PREFIX #str
#else
#define SYMBOL(str) #str
#endif
void gdb2029 (void);
void optimized_1 (void);
int
main (void)
{
gdb2029 ();
optimized_1 ();
return 0;
}
void
optimized_1_marker (void)
{
}
void
gdb2029_marker (void)
{
}
/* A typical PIC prologue from GCC. */
asm(".text\n"
" .p2align 3\n"
SYMBOL (gdb2029) ":\n"
" stwu %r1, -32(%r1)\n"
" mflr %r0\n"
" bcl- 20,31,.+4\n"
" stw %r30, 24(%r1)\n"
" mflr %r30\n"
" stw %r0, 36(%r1)\n"
" bl gdb2029_marker\n"
" lwz %r0, 36(%r1)\n"
" lwz %r30, 24(%r1)\n"
" mtlr %r0\n"
" addi %r1, %r1, 32\n"
" blr");
/* A heavily scheduled prologue. */
asm(".text\n"
" .p2align 3\n"
SYMBOL (optimized_1) ":\n"
" stwu %r1,-32(%r1)\n"
" lis %r9,-16342\n"
" lis %r11,-16342\n"
" mflr %r0\n"
" addi %r11,%r11,3776\n"
" stmw %r27,12(%r1)\n"
" addi %r31,%r9,3152\n"
" cmplw %cr7,%r31,%r11\n"
" stw %r0,36(%r1)\n"
" mr %r30,%r3\n"
" bl optimized_1_marker\n"
" lwz %r0,36(%r1)\n"
" lmw %r27,12(%r1)\n"
" addi %r1,%r1,32\n"
" blr");
|
