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1 | /* Copyright (C) 2014-2015 Free Software Foundation, Inc. |
2 | ||
3 | Contributed by Intel Corp. <markus.t.metzger@intel.com> | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "common-defs.h" | |
21 | #include "btrace-common.h" | |
22 | ||
23 | ||
24 | /* See btrace-common.h. */ | |
25 | ||
26 | const char * | |
27 | btrace_format_string (enum btrace_format format) | |
28 | { | |
29 | switch (format) | |
30 | { | |
31 | case BTRACE_FORMAT_NONE: | |
32 | return _("No or unknown format"); | |
33 | ||
34 | case BTRACE_FORMAT_BTS: | |
35 | return _("Branch Trace Store"); | |
b20a6524 MM |
36 | |
37 | case BTRACE_FORMAT_PT: | |
38 | return _("Intel(R) Processor Trace"); | |
734b0e4b MM |
39 | } |
40 | ||
41 | internal_error (__FILE__, __LINE__, _("Unknown branch trace format")); | |
42 | } | |
43 | ||
44 | /* See btrace-common.h. */ | |
45 | ||
46 | void | |
47 | btrace_data_init (struct btrace_data *data) | |
48 | { | |
49 | data->format = BTRACE_FORMAT_NONE; | |
50 | } | |
51 | ||
52 | /* See btrace-common.h. */ | |
53 | ||
54 | void | |
55 | btrace_data_fini (struct btrace_data *data) | |
56 | { | |
57 | switch (data->format) | |
58 | { | |
59 | case BTRACE_FORMAT_NONE: | |
60 | /* Nothing to do. */ | |
61 | return; | |
62 | ||
63 | case BTRACE_FORMAT_BTS: | |
64 | VEC_free (btrace_block_s, data->variant.bts.blocks); | |
65 | return; | |
b20a6524 MM |
66 | |
67 | case BTRACE_FORMAT_PT: | |
68 | xfree (data->variant.pt.data); | |
69 | return; | |
734b0e4b MM |
70 | } |
71 | ||
72 | internal_error (__FILE__, __LINE__, _("Unkown branch trace format.")); | |
73 | } | |
74 | ||
75 | /* See btrace-common.h. */ | |
76 | ||
77 | int | |
78 | btrace_data_empty (struct btrace_data *data) | |
79 | { | |
80 | switch (data->format) | |
81 | { | |
82 | case BTRACE_FORMAT_NONE: | |
83 | return 1; | |
84 | ||
85 | case BTRACE_FORMAT_BTS: | |
86 | return VEC_empty (btrace_block_s, data->variant.bts.blocks); | |
b20a6524 MM |
87 | |
88 | case BTRACE_FORMAT_PT: | |
89 | return (data->variant.pt.size == 0); | |
734b0e4b MM |
90 | } |
91 | ||
92 | internal_error (__FILE__, __LINE__, _("Unkown branch trace format.")); | |
93 | } | |
9be54cae MM |
94 | |
95 | /* See btrace-common.h. */ | |
96 | ||
97 | void | |
98 | btrace_data_clear (struct btrace_data *data) | |
99 | { | |
100 | btrace_data_fini (data); | |
101 | btrace_data_init (data); | |
102 | } | |
103 | ||
104 | /* See btrace-common.h. */ | |
105 | ||
106 | int | |
107 | btrace_data_append (struct btrace_data *dst, | |
108 | const struct btrace_data *src) | |
109 | { | |
110 | switch (src->format) | |
111 | { | |
112 | case BTRACE_FORMAT_NONE: | |
113 | return 0; | |
114 | ||
115 | case BTRACE_FORMAT_BTS: | |
116 | switch (dst->format) | |
117 | { | |
118 | default: | |
119 | return -1; | |
120 | ||
121 | case BTRACE_FORMAT_NONE: | |
122 | dst->format = BTRACE_FORMAT_BTS; | |
123 | dst->variant.bts.blocks = NULL; | |
124 | ||
125 | /* Fall-through. */ | |
126 | case BTRACE_FORMAT_BTS: | |
127 | { | |
128 | unsigned int blk; | |
129 | ||
130 | /* We copy blocks in reverse order to have the oldest block at | |
131 | index zero. */ | |
132 | blk = VEC_length (btrace_block_s, src->variant.bts.blocks); | |
133 | while (blk != 0) | |
134 | { | |
135 | btrace_block_s *block; | |
136 | ||
137 | block = VEC_index (btrace_block_s, src->variant.bts.blocks, | |
138 | --blk); | |
139 | ||
140 | VEC_safe_push (btrace_block_s, dst->variant.bts.blocks, block); | |
141 | } | |
142 | } | |
143 | } | |
144 | return 0; | |
145 | ||
146 | case BTRACE_FORMAT_PT: | |
147 | switch (dst->format) | |
148 | { | |
149 | default: | |
150 | return -1; | |
151 | ||
152 | case BTRACE_FORMAT_NONE: | |
153 | dst->format = BTRACE_FORMAT_PT; | |
154 | dst->variant.pt.data = NULL; | |
155 | dst->variant.pt.size = 0; | |
156 | ||
157 | /* fall-through. */ | |
40e050d2 | 158 | case BTRACE_FORMAT_PT: |
9be54cae MM |
159 | { |
160 | gdb_byte *data; | |
e7b01ce0 | 161 | size_t size; |
9be54cae MM |
162 | |
163 | size = src->variant.pt.size + dst->variant.pt.size; | |
224c3ddb | 164 | data = (gdb_byte *) xmalloc (size); |
9be54cae MM |
165 | |
166 | memcpy (data, dst->variant.pt.data, dst->variant.pt.size); | |
167 | memcpy (data + dst->variant.pt.size, src->variant.pt.data, | |
168 | src->variant.pt.size); | |
169 | ||
170 | xfree (dst->variant.pt.data); | |
171 | ||
172 | dst->variant.pt.data = data; | |
173 | dst->variant.pt.size = size; | |
174 | } | |
175 | } | |
176 | return 0; | |
177 | } | |
178 | ||
179 | internal_error (__FILE__, __LINE__, _("Unkown branch trace format.")); | |
180 | } |