| 1 | /* Common definitions for remote server for GDB. |
| 2 | Copyright (C) 1993-2020 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 GDBSERVER_SERVER_H |
| 20 | #define GDBSERVER_SERVER_H |
| 21 | |
| 22 | #include "gdbsupport/common-defs.h" |
| 23 | |
| 24 | #undef PACKAGE |
| 25 | #undef PACKAGE_NAME |
| 26 | #undef PACKAGE_VERSION |
| 27 | #undef PACKAGE_STRING |
| 28 | #undef PACKAGE_TARNAME |
| 29 | |
| 30 | #include <config.h> |
| 31 | |
| 32 | gdb_static_assert (sizeof (CORE_ADDR) >= sizeof (void *)); |
| 33 | |
| 34 | #ifdef __MINGW32CE__ |
| 35 | #include "wincecompat.h" |
| 36 | #endif |
| 37 | |
| 38 | #include "gdbsupport/version.h" |
| 39 | |
| 40 | #if !HAVE_DECL_PERROR |
| 41 | #ifndef perror |
| 42 | extern void perror (const char *); |
| 43 | #endif |
| 44 | #endif |
| 45 | |
| 46 | #if !HAVE_DECL_VASPRINTF |
| 47 | extern int vasprintf(char **strp, const char *fmt, va_list ap); |
| 48 | #endif |
| 49 | #if !HAVE_DECL_VSNPRINTF |
| 50 | int vsnprintf(char *str, size_t size, const char *format, va_list ap); |
| 51 | #endif |
| 52 | |
| 53 | #ifdef IN_PROCESS_AGENT |
| 54 | # define PROG "ipa" |
| 55 | #else |
| 56 | # define PROG "gdbserver" |
| 57 | #endif |
| 58 | |
| 59 | #include "gdbsupport/buffer.h" |
| 60 | #include "gdbsupport/xml-utils.h" |
| 61 | #include "regcache.h" |
| 62 | #include "gdbsupport/gdb_signals.h" |
| 63 | #include "target.h" |
| 64 | #include "mem-break.h" |
| 65 | #include "gdbsupport/environ.h" |
| 66 | |
| 67 | /* Target-specific functions */ |
| 68 | |
| 69 | void initialize_low (); |
| 70 | |
| 71 | /* Public variables in server.c */ |
| 72 | |
| 73 | extern bool server_waiting; |
| 74 | |
| 75 | extern bool disable_packet_vCont; |
| 76 | extern bool disable_packet_Tthread; |
| 77 | extern bool disable_packet_qC; |
| 78 | extern bool disable_packet_qfThreadInfo; |
| 79 | extern bool disable_packet_T; |
| 80 | |
| 81 | extern bool run_once; |
| 82 | extern bool non_stop; |
| 83 | |
| 84 | #include "gdbsupport/event-loop.h" |
| 85 | |
| 86 | /* Functions from server.c. */ |
| 87 | extern void handle_v_requests (char *own_buf, int packet_len, |
| 88 | int *new_packet_len); |
| 89 | extern void handle_serial_event (int err, gdb_client_data client_data); |
| 90 | extern void handle_target_event (int err, gdb_client_data client_data); |
| 91 | |
| 92 | /* Get rid of the currently pending stop replies that match PTID. */ |
| 93 | extern void discard_queued_stop_replies (ptid_t ptid); |
| 94 | |
| 95 | /* Returns true if there's a pending stop reply that matches PTID in |
| 96 | the vStopped notifications queue. */ |
| 97 | extern int in_queued_stop_replies (ptid_t ptid); |
| 98 | |
| 99 | #include "remote-utils.h" |
| 100 | |
| 101 | #include "utils.h" |
| 102 | #include "debug.h" |
| 103 | #include "gdbsupport/gdb_vecs.h" |
| 104 | |
| 105 | /* Maximum number of bytes to read/write at once. The value here |
| 106 | is chosen to fill up a packet (the headers account for the 32). */ |
| 107 | #define MAXBUFBYTES(N) (((N)-32)/2) |
| 108 | |
| 109 | /* Buffer sizes for transferring memory, registers, etc. Set to a constant |
| 110 | value to accomodate multiple register formats. This value must be at least |
| 111 | as large as the largest register set supported by gdbserver. */ |
| 112 | #define PBUFSIZ 18432 |
| 113 | |
| 114 | /* Definition for an unknown syscall, used basically in error-cases. */ |
| 115 | #define UNKNOWN_SYSCALL (-1) |
| 116 | |
| 117 | /* Definition for any syscall, used for unfiltered syscall reporting. */ |
| 118 | #define ANY_SYSCALL (-2) |
| 119 | |
| 120 | /* After fork_inferior has been called, we need to adjust a few |
| 121 | signals and call startup_inferior to start the inferior and consume |
| 122 | its first events. This is done here. PID is the pid of the new |
| 123 | inferior and PROGRAM is its name. */ |
| 124 | extern void post_fork_inferior (int pid, const char *program); |
| 125 | |
| 126 | /* Get the gdb_environ being used in the current session. */ |
| 127 | extern gdb_environ *get_environ (); |
| 128 | |
| 129 | extern unsigned long signal_pid; |
| 130 | |
| 131 | |
| 132 | /* Description of the client remote protocol state for the currently |
| 133 | connected client. */ |
| 134 | |
| 135 | struct client_state |
| 136 | { |
| 137 | client_state (): |
| 138 | own_buf ((char *) xmalloc (PBUFSIZ + 1)) |
| 139 | {} |
| 140 | |
| 141 | /* The thread set with an `Hc' packet. `Hc' is deprecated in favor of |
| 142 | `vCont'. Note the multi-process extensions made `vCont' a |
| 143 | requirement, so `Hc pPID.TID' is pretty much undefined. So |
| 144 | CONT_THREAD can be null_ptid for no `Hc' thread, minus_one_ptid for |
| 145 | resuming all threads of the process (again, `Hc' isn't used for |
| 146 | multi-process), or a specific thread ptid_t. */ |
| 147 | ptid_t cont_thread; |
| 148 | |
| 149 | /* The thread set with an `Hg' packet. */ |
| 150 | ptid_t general_thread; |
| 151 | |
| 152 | int multi_process = 0; |
| 153 | int report_fork_events = 0; |
| 154 | int report_vfork_events = 0; |
| 155 | int report_exec_events = 0; |
| 156 | int report_thread_events = 0; |
| 157 | |
| 158 | /* True if the "swbreak+" feature is active. In that case, GDB wants |
| 159 | us to report whether a trap is explained by a software breakpoint |
| 160 | and for the server to handle PC adjustment if necessary on this |
| 161 | target. Only enabled if the target supports it. */ |
| 162 | int swbreak_feature = 0; |
| 163 | /* True if the "hwbreak+" feature is active. In that case, GDB wants |
| 164 | us to report whether a trap is explained by a hardware breakpoint. |
| 165 | Only enabled if the target supports it. */ |
| 166 | int hwbreak_feature = 0; |
| 167 | |
| 168 | /* True if the "vContSupported" feature is active. In that case, GDB |
| 169 | wants us to report whether single step is supported in the reply to |
| 170 | "vCont?" packet. */ |
| 171 | int vCont_supported = 0; |
| 172 | |
| 173 | /* Whether we should attempt to disable the operating system's address |
| 174 | space randomization feature before starting an inferior. */ |
| 175 | int disable_randomization = 1; |
| 176 | |
| 177 | int pass_signals[GDB_SIGNAL_LAST]; |
| 178 | int program_signals[GDB_SIGNAL_LAST]; |
| 179 | int program_signals_p = 0; |
| 180 | |
| 181 | /* Last status reported to GDB. */ |
| 182 | struct target_waitstatus last_status; |
| 183 | ptid_t last_ptid; |
| 184 | |
| 185 | char *own_buf; |
| 186 | |
| 187 | /* If true, then GDB has requested noack mode. */ |
| 188 | int noack_mode = 0; |
| 189 | /* If true, then we tell GDB to use noack mode by default. */ |
| 190 | int transport_is_reliable = 0; |
| 191 | |
| 192 | /* The traceframe to be used as the source of data to send back to |
| 193 | GDB. A value of -1 means to get data from the live program. */ |
| 194 | |
| 195 | int current_traceframe = -1; |
| 196 | |
| 197 | }; |
| 198 | |
| 199 | client_state &get_client_state (); |
| 200 | |
| 201 | #include "gdbthread.h" |
| 202 | #include "inferiors.h" |
| 203 | |
| 204 | #endif /* GDBSERVER_SERVER_H */ |