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1 | /* Branch trace support for GDB, the GNU debugger. |
2 | ||
3 | Copyright (C) 2013 Free Software Foundation, Inc. | |
4 | ||
5 | Contributed by Intel Corp. <markus.t.metzger@intel.com>. | |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
11 | the Free Software Foundation; either version 3 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
21 | ||
22 | #ifndef BTRACE_COMMON_H | |
23 | #define BTRACE_COMMON_H | |
24 | ||
25 | /* Branch tracing (btrace) is a per-thread control-flow execution trace of the | |
26 | inferior. For presentation purposes, the branch trace is represented as a | |
27 | list of sequential control-flow blocks, one such list per thread. */ | |
28 | ||
29 | #ifdef GDBSERVER | |
30 | # include "server.h" | |
31 | #else | |
32 | # include "defs.h" | |
33 | #endif | |
34 | ||
35 | #include "vec.h" | |
36 | ||
37 | /* A branch trace block. | |
38 | ||
39 | This represents a block of sequential control-flow. Adjacent blocks will be | |
40 | connected via calls, returns, or jumps. The latter can be direct or | |
41 | indirect, conditional or unconditional. Branches can further be | |
42 | asynchronous, e.g. interrupts. */ | |
43 | struct btrace_block | |
44 | { | |
45 | /* The address of the first byte of the first instruction in the block. */ | |
46 | CORE_ADDR begin; | |
47 | ||
48 | /* The address of the first byte of the last instruction in the block. */ | |
49 | CORE_ADDR end; | |
50 | }; | |
51 | ||
52 | /* Branch trace is represented as a vector of branch trace blocks starting with | |
53 | the most recent block. */ | |
54 | typedef struct btrace_block btrace_block_s; | |
55 | ||
56 | /* Define functions operating on a vector of branch trace blocks. */ | |
57 | DEF_VEC_O (btrace_block_s); | |
58 | ||
59 | /* Target specific branch trace information. */ | |
60 | struct btrace_target_info; | |
61 | ||
62 | /* Enumeration of btrace read types. */ | |
63 | ||
64 | enum btrace_read_type | |
65 | { | |
66 | /* Send all available trace. */ | |
67 | btrace_read_all, | |
68 | ||
69 | /* Send all available trace, if it changed. */ | |
70 | btrace_read_new | |
71 | }; | |
72 | ||
73 | #endif /* BTRACE_COMMON_H */ |