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import gdb-1999-07-07 post reformat
[thirdparty/binutils-gdb.git] / gdb / tracepoint.h
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1/* Data structures associated with tracepoints in GDB.
2 Copyright (C) 1997 Free Software Foundation, Inc.
3
c5aa993b 4 This file is part of GDB.
c906108c 5
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6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
c906108c 10
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11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
c906108c 15
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16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
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20
21#if !defined (TRACEPOINT_H)
22#define TRACEPOINT_H 1
23
24#if !defined (BREAKPOINT_H)
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25enum enable
26 {
27 disabled, enabled
28 };
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29#endif
30/* The data structure for an action: */
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31struct action_line
32 {
33 struct action_line *next;
34 char *action;
35 };
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36
37/* The data structure for a tracepoint: */
38
39struct tracepoint
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40 {
41 struct tracepoint *next;
c906108c 42
c5aa993b 43 enum enable enabled;
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44
45#if 0
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46 /* Type of tracepoint (MVS FIXME: needed?). */
47 enum tptype type;
c906108c 48
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49 /* What to do with this tracepoint after we hit it MVS FIXME: needed?). */
50 enum tpdisp disposition;
c906108c 51#endif
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52 /* Number assigned to distinguish tracepoints. */
53 int number;
c906108c 54
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55 /* Address to trace at, or NULL if not an instruction tracepoint (MVS ?). */
56 CORE_ADDR address;
c906108c 57
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58 /* Line number of this address. Only matters if address is non-NULL. */
59 int line_number;
c906108c 60
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61 /* Source file name of this address. Only matters if address is non-NULL. */
62 char *source_file;
c906108c 63
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64 /* Number of times this tracepoint should single-step
65 and collect additional data */
66 long step_count;
c906108c 67
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68 /* Number of times this tracepoint should be hit before disabling/ending. */
69 int pass_count;
c906108c 70
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71 /* Chain of action lines to execute when this tracepoint is hit. */
72 struct action_line *actions;
c906108c 73
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74 /* Conditional (MVS ?). */
75 struct expression *cond;
c906108c 76
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77 /* String we used to set the tracepoint (malloc'd). Only matters if
78 address is non-NULL. */
79 char *addr_string;
c906108c 80
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81 /* Language we used to set the tracepoint. */
82 enum language language;
c906108c 83
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84 /* Input radix we used to set the tracepoint. */
85 int input_radix;
c906108c 86
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87 /* Count of the number of times this tracepoint was taken, dumped
88 with the info, but not used for anything else. Useful for
89 seeing how many times you hit a tracepoint prior to the program
90 aborting, so you can back up to just before the abort. */
91 int hit_count;
c906108c 92
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93 /* Thread number for thread-specific tracepoint, or -1 if don't care */
94 int thread;
95
96 /* BFD section, in case of overlays:
97 no, I don't know if tracepoints are really gonna work with overlays. */
98 asection *section;
99 };
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100
101enum actionline_type
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102 {
103 BADLINE = -1,
104 GENERIC = 0,
105 END = 1,
106 STEPPING = 2
107 };
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108
109
110/* The tracepont chain of all tracepoints */
111
112extern struct tracepoint *tracepoint_chain;
113
114extern unsigned long trace_running_p;
115
116/* A hook used to notify the UI of tracepoint operations */
117
118void (*create_tracepoint_hook) PARAMS ((struct tracepoint *));
119void (*delete_tracepoint_hook) PARAMS ((struct tracepoint *));
120void (*modify_tracepoint_hook) PARAMS ((struct tracepoint *));
121void (*trace_find_hook) PARAMS ((char *arg, int from_tty));
122void (*trace_start_stop_hook) PARAMS ((int start, int from_tty));
123
124struct tracepoint *get_tracepoint_by_number PARAMS ((char **));
125int get_traceframe_number PARAMS ((void));
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126void free_actions PARAMS ((struct tracepoint *));
127enum actionline_type validate_actionline PARAMS ((char **,
128 struct tracepoint *));
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129
130
131/* Walk the following statement or block through all tracepoints.
132 ALL_TRACEPOINTS_SAFE does so even if the statment deletes the current
133 breakpoint. */
134
135#define ALL_TRACEPOINTS(t) for (t = tracepoint_chain; t; t = t->next)
136
137#define ALL_TRACEPOINTS_SAFE(t,tmp) \
138 for (t = tracepoint_chain; \
139 t ? (tmp = t->next, 1) : 0;\
140 t = tmp)
141#endif /* TRACEPOINT_H */