gdb/stap-probe.h

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