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
|
/* Machine-dependent definitions for profiling support. SH version.
*
* Copyright (C) 2003 Stefan Allius <allius@atecom.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*/
#define mcount_internal __mcount_internal
#define _MCOUNT_DECL(frompc, selfpc) \
static void __attribute__((unused)) mcount_internal (u_long frompc, u_long selfpc)
/*
* This mcount implementation expect the 'frompc' return address on
* the stack and the 'selfpc' return address in register pr.
*
* Your compiler should include some stuff like this at each function
* entry:
*
* mov.l 1f,r1
* sts.l pr,@-r15
* mova 2f,r0
* jmp @r1
* lds r0,pr
* .align 2
* 1: .long mcount
* 2: lds.l @r15+,pr
*
* or for PIC:
*
* mov.l 3f,r1
* mova 3f,r0
* add r1,r0
* mov.l 1f,r1
* mov.l @(r0,r1),r1
* sts.l pr,@-r15
* mova 2f,r0
* jmp @r1
* lds r0,pr
* .align 2
* 1: .long mcount@GOT
* 3: .long _GLOBAL_OFFSET_TABLE_
* 2: lds.l @r15+,pr
*
*
* This ABI will be supported by GCC version 3.3 or newer!
*/
#define MCOUNT asm(\
".align 4\n\t" \
".globl _mcount\n\t" \
".type _mcount,@function\n" \
"_mcount:\n\t" \
"mov.l r4, @-r15\n\t" \
"mov.l r5, @-r15\n\t" \
"mov.l r6, @-r15\n\t" \
"mov.l r7, @-r15\n\t" \
"sts.l pr, @-r15\n\t" \
"sts pr, r5\n\t" \
"bsr __mcount_internal\n\t" \
" mov.l @(5*4,r15), r4\n\t" \
"lds.l @r15+, pr\n\t" \
"mov.l @r15+, r7\n\t" \
"mov.l @r15+, r6\n\t" \
"mov.l @r15+, r5\n\t" \
"rts\n\t" \
" mov.l @r15+, r4\n\t" \
".size _mcount,.-_mcount;\n\t" \
".weak mcount;\n\t" \
" mcount = _mcount;");
|
