gdb/gdbthread.h

   1 /* Multi-process/thread control defs for GDB, the GNU debugger.
   2    Copyright 1987, 88, 89, 90, 91, 92, 1993, 1998
   3
   4    Contributed by Lynx Real-Time Systems, Inc.  Los Gatos, CA.
   5    Free Software Foundation, Inc.
   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 2 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, write to the Free Software
  21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef GDBTHREAD_H
  24 #define GDBTHREAD_H
  25
  26 extern void init_thread_list PARAMS ((void));
  27
  28 extern void add_thread PARAMS ((int pid));
  29
  30 extern void delete_thread PARAMS ((int));
  31
  32 extern int thread_id_to_pid PARAMS ((int));
  33
  34 extern int in_thread_list PARAMS ((int pid));
  35
  36 extern int pid_to_thread_id PARAMS ((int pid));
  37
  38 extern int valid_thread_id PARAMS ((int thread));
  39
  40 extern void load_infrun_state PARAMS ((int, CORE_ADDR *, CORE_ADDR *, char **,
  41                                        int *, struct breakpoint **,
  42                                        struct breakpoint **, CORE_ADDR *,
  43                                        CORE_ADDR *, CORE_ADDR *, int *, int *));
  44
  45 extern void save_infrun_state PARAMS ((int, CORE_ADDR, CORE_ADDR, char *,
  46                                        int, struct breakpoint *,
  47                                        struct breakpoint *, CORE_ADDR,
  48                                        CORE_ADDR, CORE_ADDR, int, int));
  49
  50 /* Commands with a prefix of `thread'.  */
  51 extern struct cmd_list_element *thread_cmd_list;
  52
  53 /* Support for external (remote) systems with threads (processes) */
  54 /* For example real time operating systems */
  55
  56 #define OPAQUETHREADBYTES 8
  57 /* a 64 bit opaque identifier */
  58 typedef unsigned char threadref[OPAQUETHREADBYTES] ;
  59 /* WARNING: This threadref data structure comes from the remote O.S., libstub
  60    protocol encoding, and remote.c. it is not particularly changable */
  61
  62 /* Right now, the internal structure is int. We want it to be bigger.
  63    Plan to fix this.
  64    */
  65 typedef int gdb_threadref ; /* internal GDB thread reference */
  66
  67 /*  gdb_ext_thread_info is an internal GDB data structure which is
  68    equivalint to the reply of the remote threadinfo packet */
  69
  70 struct gdb_ext_thread_info
  71 {
  72   threadref threadid ; /* External form of thread reference */
  73   int active ;         /* Has state interesting to GDB? , regs, stack */
  74   char display[256] ;  /* Brief state display, name, blocked/syspended */
  75   char shortname[32] ; /* To be used to name threads */
  76   char more_display[256] ; /* Long info, statistics, queue depth, whatever */
  77 } ;
  78
  79 /* The volume of remote transfers can be limited by submitting
  80    a mask containing bits specifying the desired information.
  81    Use a union of these values as the 'selection' parameter to
  82    get_thread_info. FIXME: Make these TAG names more thread specific.
  83    */
  84 #define TAG_THREADID 1
  85 #define TAG_EXISTS 2
  86 #define TAG_DISPLAY 4
  87 #define TAG_THREADNAME 8
  88 #define TAG_MOREDISPLAY 16
  89
  90 /* Always initialize an instance of this structure using run time assignments */
  91 /* Because we are likely to add entrtries to it. */
  92 /* Alternatly, WE COULD ADD THESE TO THE TARGET VECTOR */
  93
  94 struct target_thread_vector
  95 {
  96   int (*find_new_threads)PARAMS((void)) ;
  97   int (*get_thread_info) PARAMS((
  98                          gdb_threadref * ref,
  99                          int selection,
 100                          struct gdb_ext_thread_info * info
 101                          )) ;
 102   /* to_thread_alive - Already in the target vector */
 103   /* to_switch_thread - Done via select frame */
 104 } ;
 105
 106 extern void bind_target_thread_vector PARAMS((struct target_thread_vector * vec)) ;
 107
 108 extern struct target_thread_vector * unbind_target_thread_vector PARAMS ((void)) ;
 109
 110 extern int target_get_thread_info PARAMS((
 111                                   gdb_threadref * ref,
 112                                   int selection,
 113                                   struct gdb_ext_thread_info * info)) ;
 114
 115
 116 #endif  /* GDBTHREAD_H */