1 /* SystemTap probe support for GDB. 2 3 Copyright (C) 2012-2017 Free Software Foundation, Inc. 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 #if !defined (STAP_PROBE_H) 21 #define STAP_PROBE_H 1 22 23 /* For `struct parser_state'. */ 24 #include "parser-defs.h" 25 26 /* Structure which holds information about the parsing process of one probe's 27 argument. */ 28 29 struct stap_parse_info 30 { 31 /* The probe's argument in a string format. */ 32 const char *arg; 33 34 /* The parser state to be used when generating the expression. */ 35 struct parser_state pstate; 36 37 /* A pointer to the full chain of arguments. This is useful for printing 38 error messages. The parser functions should not modify this argument 39 directly; instead, they should use the ARG pointer above. */ 40 const char *saved_arg; 41 42 /* The expected argument type (bitness), as defined in the probe's 43 argument. For instance, if the argument begins with `-8@', it means 44 the bitness is 64-bit signed. In this case, ARG_TYPE would represent 45 the type `int64_t'. */ 46 struct type *arg_type; 47 48 /* A pointer to the current gdbarch. */ 49 struct gdbarch *gdbarch; 50 51 /* Greater than zero if we are inside a parenthesized expression. Useful 52 for knowing when to skip spaces or not. */ 53 int inside_paren_p; 54 }; 55 56 #endif /* !defined (STAP_PROBE_H) */ 57