gdb/gdbserver/server.h

   1 /* Common definitions for remote server for GDB.
   2    Copyright (C) 1993-2017 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   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 3 of the License, or
   9    (at your option) any later version.
  10
  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.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef SERVER_H
  20 #define SERVER_H
  21
  22 #include "common-defs.h"
  23
  24 gdb_static_assert (sizeof (CORE_ADDR) >= sizeof (void *));
  25
  26 #ifdef __MINGW32CE__
  27 #include "wincecompat.h"
  28 #endif
  29
  30 #include "version.h"
  31
  32 #if !HAVE_DECL_STRERROR
  33 #ifndef strerror
  34 extern char *strerror (int);    /* X3.159-1989  4.11.6.2 */
  35 #endif
  36 #endif
  37
  38 #if !HAVE_DECL_PERROR
  39 #ifndef perror
  40 extern void perror (const char *);
  41 #endif
  42 #endif
  43
  44 #if !HAVE_DECL_VASPRINTF
  45 extern int vasprintf(char **strp, const char *fmt, va_list ap);
  46 #endif
  47 #if !HAVE_DECL_VSNPRINTF
  48 int vsnprintf(char *str, size_t size, const char *format, va_list ap);
  49 #endif
  50
  51 #ifdef IN_PROCESS_AGENT
  52 #  define PROG "ipa"
  53 #else
  54 #  define PROG "gdbserver"
  55 #endif
  56
  57 #include "buffer.h"
  58 #include "xml-utils.h"
  59 #include "regcache.h"
  60 #include "gdb_signals.h"
  61 #include "target.h"
  62 #include "mem-break.h"
  63 #include "gdbthread.h"
  64 #include "inferiors.h"
  65 #include "environ.h"
  66
  67 /* Target-specific functions */
  68
  69 void initialize_low ();
  70
  71 /* Public variables in server.c */
  72
  73 extern ptid_t cont_thread;
  74 extern ptid_t general_thread;
  75
  76 extern int server_waiting;
  77 extern int pass_signals[];
  78 extern int program_signals[];
  79 extern int program_signals_p;
  80
  81 extern int disable_packet_vCont;
  82 extern int disable_packet_Tthread;
  83 extern int disable_packet_qC;
  84 extern int disable_packet_qfThreadInfo;
  85
  86 extern char *own_buf;
  87
  88 extern int run_once;
  89 extern int multi_process;
  90 extern int report_fork_events;
  91 extern int report_vfork_events;
  92 extern int report_exec_events;
  93 extern int report_thread_events;
  94 extern int non_stop;
  95
  96 /* True if the "swbreak+" feature is active.  In that case, GDB wants
  97    us to report whether a trap is explained by a software breakpoint
  98    and for the server to handle PC adjustment if necessary on this
  99    target.  Only enabled if the target supports it.  */
 100 extern int swbreak_feature;
 101
 102 /* True if the "hwbreak+" feature is active.  In that case, GDB wants
 103    us to report whether a trap is explained by a hardware breakpoint.
 104    Only enabled if the target supports it.  */
 105 extern int hwbreak_feature;
 106
 107 extern int disable_randomization;
 108
 109 #if USE_WIN32API
 110 #include <winsock2.h>
 111 typedef SOCKET gdb_fildes_t;
 112 #else
 113 typedef int gdb_fildes_t;
 114 #endif
 115
 116 #include "event-loop.h"
 117
 118 /* Functions from server.c.  */
 119 extern void handle_v_requests (char *own_buf, int packet_len,
 120                                int *new_packet_len);
 121 extern int handle_serial_event (int err, gdb_client_data client_data);
 122 extern int handle_target_event (int err, gdb_client_data client_data);
 123
 124 /* Get rid of the currently pending stop replies that match PTID.  */
 125 extern void discard_queued_stop_replies (ptid_t ptid);
 126
 127 /* Returns true if there's a pending stop reply that matches PTID in
 128    the vStopped notifications queue.  */
 129 extern int in_queued_stop_replies (ptid_t ptid);
 130
 131 #include "remote-utils.h"
 132
 133 #include "utils.h"
 134 #include "debug.h"
 135 #include "gdb_vecs.h"
 136
 137 /* Maximum number of bytes to read/write at once.  The value here
 138    is chosen to fill up a packet (the headers account for the 32).  */
 139 #define MAXBUFBYTES(N) (((N)-32)/2)
 140
 141 /* Buffer sizes for transferring memory, registers, etc.   Set to a constant
 142    value to accomodate multiple register formats.  This value must be at least
 143    as large as the largest register set supported by gdbserver.  */
 144 #define PBUFSIZ 16384
 145
 146 /* Definition for an unknown syscall, used basically in error-cases.  */
 147 #define UNKNOWN_SYSCALL (-1)
 148
 149 /* Definition for any syscall, used for unfiltered syscall reporting.  */
 150 #define ANY_SYSCALL (-2)
 151
 152 /* After fork_inferior has been called, we need to adjust a few
 153    signals and call startup_inferior to start the inferior and consume
 154    its first events.  This is done here.  PID is the pid of the new
 155    inferior and PROGRAM is its name.  */
 156 extern void post_fork_inferior (int pid, const char *program);
 157
 158 /* Get the gdb_environ being used in the current session.  */
 159 extern gdb_environ *get_environ ();
 160
 161 extern target_waitstatus last_status;
 162 extern ptid_t last_ptid;
 163 extern unsigned long signal_pid;
 164
 165 #endif /* SERVER_H */