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/* Common definitions for remote server for GDB.
Copyright (C) 1993-2019 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef SERVER_H
#define SERVER_H
#include "common-defs.h"
gdb_static_assert (sizeof (CORE_ADDR) >= sizeof (void *));
#ifdef __MINGW32CE__
#include "wincecompat.h"
#endif
#include "version.h"
#if !HAVE_DECL_STRERROR
#ifndef strerror
extern char *strerror (int); /* X3.159-1989 4.11.6.2 */
#endif
#endif
#if !HAVE_DECL_PERROR
#ifndef perror
extern void perror (const char *);
#endif
#endif
#if !HAVE_DECL_VASPRINTF
extern int vasprintf(char **strp, const char *fmt, va_list ap);
#endif
#if !HAVE_DECL_VSNPRINTF
int vsnprintf(char *str, size_t size, const char *format, va_list ap);
#endif
#ifdef IN_PROCESS_AGENT
# define PROG "ipa"
#else
# define PROG "gdbserver"
#endif
#include "buffer.h"
#include "xml-utils.h"
#include "regcache.h"
#include "gdb_signals.h"
#include "target.h"
#include "mem-break.h"
#include "environ.h"
/* Target-specific functions */
void initialize_low ();
/* Public variables in server.c */
extern int server_waiting;
extern int disable_packet_vCont;
extern int disable_packet_Tthread;
extern int disable_packet_qC;
extern int disable_packet_qfThreadInfo;
extern int run_once;
extern int non_stop;
#if USE_WIN32API
#include <winsock2.h>
typedef SOCKET gdb_fildes_t;
#else
typedef int gdb_fildes_t;
#endif
#include "event-loop.h"
/* Functions from server.c. */
extern void handle_v_requests (char *own_buf, int packet_len,
int *new_packet_len);
extern int handle_serial_event (int err, gdb_client_data client_data);
extern int handle_target_event (int err, gdb_client_data client_data);
/* Get rid of the currently pending stop replies that match PTID. */
extern void discard_queued_stop_replies (ptid_t ptid);
/* Returns true if there's a pending stop reply that matches PTID in
the vStopped notifications queue. */
extern int in_queued_stop_replies (ptid_t ptid);
#include "remote-utils.h"
#include "utils.h"
#include "debug.h"
#include "gdb_vecs.h"
/* Maximum number of bytes to read/write at once. The value here
is chosen to fill up a packet (the headers account for the 32). */
#define MAXBUFBYTES(N) (((N)-32)/2)
/* Buffer sizes for transferring memory, registers, etc. Set to a constant
value to accomodate multiple register formats. This value must be at least
as large as the largest register set supported by gdbserver. */
#define PBUFSIZ 18432
/* Definition for an unknown syscall, used basically in error-cases. */
#define UNKNOWN_SYSCALL (-1)
/* Definition for any syscall, used for unfiltered syscall reporting. */
#define ANY_SYSCALL (-2)
/* After fork_inferior has been called, we need to adjust a few
signals and call startup_inferior to start the inferior and consume
its first events. This is done here. PID is the pid of the new
inferior and PROGRAM is its name. */
extern void post_fork_inferior (int pid, const char *program);
/* Get the gdb_environ being used in the current session. */
extern gdb_environ *get_environ ();
extern unsigned long signal_pid;
/* Description of the client remote protocol state for the currently
connected client. */
struct client_state
{
client_state ():
own_buf ((char *) xmalloc (PBUFSIZ + 1))
{}
/* The thread set with an `Hc' packet. `Hc' is deprecated in favor of
`vCont'. Note the multi-process extensions made `vCont' a
requirement, so `Hc pPID.TID' is pretty much undefined. So
CONT_THREAD can be null_ptid for no `Hc' thread, minus_one_ptid for
resuming all threads of the process (again, `Hc' isn't used for
multi-process), or a specific thread ptid_t. */
ptid_t cont_thread;
/* The thread set with an `Hg' packet. */
ptid_t general_thread;
int multi_process = 0;
int report_fork_events = 0;
int report_vfork_events = 0;
int report_exec_events = 0;
int report_thread_events = 0;
/* True if the "swbreak+" feature is active. In that case, GDB wants
us to report whether a trap is explained by a software breakpoint
and for the server to handle PC adjustment if necessary on this
target. Only enabled if the target supports it. */
int swbreak_feature = 0;
/* True if the "hwbreak+" feature is active. In that case, GDB wants
us to report whether a trap is explained by a hardware breakpoint.
Only enabled if the target supports it. */
int hwbreak_feature = 0;
/* True if the "vContSupported" feature is active. In that case, GDB
wants us to report whether single step is supported in the reply to
"vCont?" packet. */
int vCont_supported = 0;
/* Whether we should attempt to disable the operating system's address
space randomization feature before starting an inferior. */
int disable_randomization = 1;
int pass_signals[GDB_SIGNAL_LAST];
int program_signals[GDB_SIGNAL_LAST];
int program_signals_p = 0;
/* Last status reported to GDB. */
struct target_waitstatus last_status;
ptid_t last_ptid;
char *own_buf;
/* If true, then GDB has requested noack mode. */
int noack_mode = 0;
/* If true, then we tell GDB to use noack mode by default. */
int transport_is_reliable = 0;
/* The traceframe to be used as the source of data to send back to
GDB. A value of -1 means to get data from the live program. */
int current_traceframe = -1;
};
client_state &get_client_state ();
#include "gdbthread.h"
#include "inferiors.h"
#endif /* SERVER_H */
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