blob: 932a11888b0fabe3d135a5833d7a6fa5e26661ed (
plain)
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
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/* Copyright (C) 2014-2023 Free Software Foundation, Inc.
Contributed by Intel Corp. <markus.t.metzger@intel.com>
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/>. */
#include "common-defs.h"
#include "btrace-common.h"
/* See btrace-common.h. */
const char *
btrace_format_string (enum btrace_format format)
{
switch (format)
{
case BTRACE_FORMAT_NONE:
return _("No or unknown format");
case BTRACE_FORMAT_BTS:
return _("Branch Trace Store");
case BTRACE_FORMAT_PT:
return _("Intel Processor Trace");
}
internal_error (_("Unknown branch trace format"));
}
/* See btrace-common.h. */
const char *
btrace_format_short_string (enum btrace_format format)
{
switch (format)
{
case BTRACE_FORMAT_NONE:
return "unknown";
case BTRACE_FORMAT_BTS:
return "bts";
case BTRACE_FORMAT_PT:
return "pt";
}
internal_error (_("Unknown branch trace format"));
}
/* See btrace-common.h. */
void
btrace_data::fini ()
{
switch (format)
{
case BTRACE_FORMAT_NONE:
/* Nothing to do. */
return;
case BTRACE_FORMAT_BTS:
delete variant.bts.blocks;
variant.bts.blocks = nullptr;
return;
case BTRACE_FORMAT_PT:
xfree (variant.pt.data);
return;
}
internal_error (_("Unkown branch trace format."));
}
/* See btrace-common.h. */
bool
btrace_data::empty () const
{
switch (format)
{
case BTRACE_FORMAT_NONE:
return true;
case BTRACE_FORMAT_BTS:
return variant.bts.blocks->empty ();
case BTRACE_FORMAT_PT:
return (variant.pt.size == 0);
}
internal_error (_("Unkown branch trace format."));
}
/* See btrace-common.h. */
void
btrace_data::clear ()
{
fini ();
format = BTRACE_FORMAT_NONE;
}
/* See btrace-common.h. */
int
btrace_data_append (struct btrace_data *dst,
const struct btrace_data *src)
{
switch (src->format)
{
case BTRACE_FORMAT_NONE:
return 0;
case BTRACE_FORMAT_BTS:
switch (dst->format)
{
default:
return -1;
case BTRACE_FORMAT_NONE:
dst->format = BTRACE_FORMAT_BTS;
dst->variant.bts.blocks = new std::vector<btrace_block>;
/* Fall-through. */
case BTRACE_FORMAT_BTS:
{
unsigned int blk;
/* We copy blocks in reverse order to have the oldest block at
index zero. */
blk = src->variant.bts.blocks->size ();
while (blk != 0)
{
const btrace_block &block
= src->variant.bts.blocks->at (--blk);
dst->variant.bts.blocks->push_back (block);
}
}
}
return 0;
case BTRACE_FORMAT_PT:
switch (dst->format)
{
default:
return -1;
case BTRACE_FORMAT_NONE:
dst->format = BTRACE_FORMAT_PT;
dst->variant.pt.data = NULL;
dst->variant.pt.size = 0;
/* fall-through. */
case BTRACE_FORMAT_PT:
{
gdb_byte *data;
size_t size;
size = src->variant.pt.size + dst->variant.pt.size;
data = (gdb_byte *) xmalloc (size);
if (dst->variant.pt.size > 0)
memcpy (data, dst->variant.pt.data, dst->variant.pt.size);
memcpy (data + dst->variant.pt.size, src->variant.pt.data,
src->variant.pt.size);
xfree (dst->variant.pt.data);
dst->variant.pt.data = data;
dst->variant.pt.size = size;
}
}
return 0;
}
internal_error (_("Unkown branch trace format."));
}
|
