1 /* SystemTap probe support for GDB.
3 Copyright (C) 2012-2019 Free Software Foundation, Inc.
5 This file is part of GDB.
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.
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.
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/>. */
20 #if !defined (STAP_PROBE_H)
21 #define STAP_PROBE_H 1
23 /* For `struct parser_state'. */
24 #include "parser-defs.h"
26 /* Structure which holds information about the parsing process of one probe's
29 struct stap_parse_info
31 stap_parse_info (const char *arg_, struct type *arg_type_,
32 size_t initial_size, const struct language_defn *lang,
33 struct gdbarch *gdbarch)
35 pstate (initial_size, lang, gdbarch),
43 DISABLE_COPY_AND_ASSIGN (stap_parse_info);
45 /* The probe's argument in a string format. */
48 /* The parser state to be used when generating the expression. */
49 struct parser_state pstate;
51 /* A pointer to the full chain of arguments. This is useful for printing
52 error messages. The parser functions should not modify this argument
53 directly; instead, they should use the ARG pointer above. */
54 const char *saved_arg;
56 /* The expected argument type (bitness), as defined in the probe's
57 argument. For instance, if the argument begins with `-8@', it means
58 the bitness is 64-bit signed. In this case, ARG_TYPE would represent
59 the type `int64_t'. */
60 struct type *arg_type;
62 /* A pointer to the current gdbarch. */
63 struct gdbarch *gdbarch;
65 /* Greater than zero if we are inside a parenthesized expression. Useful
66 for knowing when to skip spaces or not. */
70 #endif /* !defined (STAP_PROBE_H) */