/* Replay a remote debug session logfile for GDB.
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996-2019 Free Software Foundation, Inc.
Written by Fred Fish (fnf@cygnus.com) from pieces of gdbserver.
-This file is part of GDB.
+ 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 2 of the License, or
-(at your option) any later version.
+ 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.
+ 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, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#include <stdio.h>
-#include <sgtty.h>
+#include "common-defs.h"
+#include "version.h"
+
+#if HAVE_SYS_FILE_H
#include <sys/file.h>
+#endif
+#if HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+#include <ctype.h>
+#if HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#include <unistd.h>
+#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
+#endif
+#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
+#endif
+#if HAVE_NETDB_H
#include <netdb.h>
+#endif
+#if HAVE_NETINET_TCP_H
#include <netinet/tcp.h>
-#include <signal.h>
-#include <ctype.h>
+#endif
+
+#if USE_WIN32API
+#include <winsock2.h>
+#include <wspiapi.h>
+#endif
+
+#include "netstuff.h"
+
+#ifndef HAVE_SOCKLEN_T
+typedef int socklen_t;
+#endif
/* Sort of a hack... */
#define EOL (EOF - 1)
static int remote_desc;
-/* Print the system error message for errno, and also mention STRING
- as the file name for which the error was encountered.
- Then return to command level. */
+#ifdef __MINGW32CE__
-void
-perror_with_name (string)
- char *string;
+#ifndef COUNTOF
+#define COUNTOF(STR) (sizeof (STR) / sizeof ((STR)[0]))
+#endif
+
+#define errno (GetLastError ())
+
+char *
+strerror (DWORD error)
{
- extern int sys_nerr;
- extern char *sys_errlist[];
- extern int errno;
- char *err;
- char *combined;
-
- err = (errno < sys_nerr) ? sys_errlist[errno] : "unknown error";
- combined = (char *) alloca (strlen (err) + strlen (string) + 3);
- strcpy (combined, string);
- strcat (combined, ": ");
- strcat (combined, err);
- fprintf (stderr, "\n%s.\n", combined);
- fflush (stderr);
- exit (1);
+ static char buf[1024];
+ WCHAR *msgbuf;
+ DWORD lasterr = GetLastError ();
+ DWORD chars = FormatMessageW (FORMAT_MESSAGE_FROM_SYSTEM
+ | FORMAT_MESSAGE_ALLOCATE_BUFFER,
+ NULL,
+ error,
+ 0, /* Default language */
+ (LPVOID)&msgbuf,
+ 0,
+ NULL);
+ if (chars != 0)
+ {
+ /* If there is an \r\n appended, zap it. */
+ if (chars >= 2
+ && msgbuf[chars - 2] == '\r'
+ && msgbuf[chars - 1] == '\n')
+ {
+ chars -= 2;
+ msgbuf[chars] = 0;
+ }
+
+ if (chars > ((COUNTOF (buf)) - 1))
+ {
+ chars = COUNTOF (buf) - 1;
+ msgbuf [chars] = 0;
+ }
+
+ wcstombs (buf, msgbuf, chars + 1);
+ LocalFree (msgbuf);
+ }
+ else
+ sprintf (buf, "unknown win32 error (%ld)", error);
+
+ SetLastError (lasterr);
+ return buf;
}
+#endif /* __MINGW32CE__ */
+
static void
-sync_error (fp, desc, expect, got)
- FILE *fp;
- char *desc;
- int expect;
- int got;
+sync_error (FILE *fp, const char *desc, int expect, int got)
{
fprintf (stderr, "\n%s\n", desc);
fprintf (stderr, "At logfile offset %ld, expected '0x%x' got '0x%x'\n",
exit (1);
}
-void
-remote_close()
+static void
+remote_error (const char *desc)
+{
+ fprintf (stderr, "\n%s\n", desc);
+ fflush (stderr);
+ exit (1);
+}
+
+static void
+remote_close (void)
{
+#ifdef USE_WIN32API
+ closesocket (remote_desc);
+#else
close (remote_desc);
+#endif
}
/* Open a connection to a remote debugger.
NAME is the filename used for communication. */
-void
-remote_open (name)
- char *name;
+static void
+remote_open (char *name)
{
- struct sgttyb sg;
- extern char *strchr ();
+ char *last_colon = strrchr (name, ':');
- if (!strchr (name, ':'))
+ if (last_colon == NULL)
{
fprintf (stderr, "%s: Must specify tcp connection as host:addr\n", name);
fflush (stderr);
exit (1);
}
- else
+
+#ifdef USE_WIN32API
+ static int winsock_initialized;
+#endif
+ int tmp;
+ int tmp_desc;
+ struct addrinfo hint;
+ struct addrinfo *ainfo;
+
+ memset (&hint, 0, sizeof (hint));
+ /* Assume no prefix will be passed, therefore we should use
+ AF_UNSPEC. */
+ hint.ai_family = AF_UNSPEC;
+ hint.ai_socktype = SOCK_STREAM;
+ hint.ai_protocol = IPPROTO_TCP;
+
+ parsed_connection_spec parsed = parse_connection_spec (name, &hint);
+
+ if (parsed.port_str.empty ())
+ error (_("Missing port on hostname '%s'"), name);
+
+#ifdef USE_WIN32API
+ if (!winsock_initialized)
{
- char *port_str;
- int port;
- struct sockaddr_in sockaddr;
- int tmp;
- struct protoent *protoent;
- int tmp_desc;
+ WSADATA wsad;
- port_str = strchr (name, ':');
+ WSAStartup (MAKEWORD (1, 0), &wsad);
+ winsock_initialized = 1;
+ }
+#endif
- port = atoi (port_str + 1);
+ int r = getaddrinfo (parsed.host_str.c_str (), parsed.port_str.c_str (),
+ &hint, &ainfo);
- tmp_desc = socket (PF_INET, SOCK_STREAM, 0);
- if (tmp_desc < 0)
- perror_with_name ("Can't open socket");
+ if (r != 0)
+ {
+ fprintf (stderr, "%s:%s: cannot resolve name: %s\n",
+ parsed.host_str.c_str (), parsed.port_str.c_str (),
+ gai_strerror (r));
+ fflush (stderr);
+ exit (1);
+ }
- /* Allow rapid reuse of this port. */
- tmp = 1;
- setsockopt (tmp_desc, SOL_SOCKET, SO_REUSEADDR, (char *)&tmp,
- sizeof(tmp));
+ scoped_free_addrinfo free_ainfo (ainfo);
+
+ struct addrinfo *p;
+
+ for (p = ainfo; p != NULL; p = p->ai_next)
+ {
+ tmp_desc = socket (p->ai_family, p->ai_socktype, p->ai_protocol);
+
+ if (tmp_desc >= 0)
+ break;
+ }
+
+ if (p == NULL)
+ perror_with_name ("Cannot open socket");
+
+ /* Allow rapid reuse of this port. */
+ tmp = 1;
+ setsockopt (tmp_desc, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp,
+ sizeof (tmp));
+
+ switch (p->ai_family)
+ {
+ case AF_INET:
+ ((struct sockaddr_in *) p->ai_addr)->sin_addr.s_addr = INADDR_ANY;
+ break;
+ case AF_INET6:
+ ((struct sockaddr_in6 *) p->ai_addr)->sin6_addr = in6addr_any;
+ break;
+ default:
+ fprintf (stderr, "Invalid 'ai_family' %d\n", p->ai_family);
+ exit (1);
+ }
+
+ if (bind (tmp_desc, p->ai_addr, p->ai_addrlen) != 0)
+ perror_with_name ("Can't bind address");
+
+ if (p->ai_socktype == SOCK_DGRAM)
+ remote_desc = tmp_desc;
+ else
+ {
+ struct sockaddr_storage sockaddr;
+ socklen_t sockaddrsize = sizeof (sockaddr);
+ char orig_host[GDB_NI_MAX_ADDR], orig_port[GDB_NI_MAX_PORT];
- sockaddr.sin_family = PF_INET;
- sockaddr.sin_port = htons(port);
- sockaddr.sin_addr.s_addr = INADDR_ANY;
+ if (listen (tmp_desc, 1) != 0)
+ perror_with_name ("Can't listen on socket");
- if (bind (tmp_desc, (struct sockaddr *)&sockaddr, sizeof (sockaddr))
- || listen (tmp_desc, 1))
- perror_with_name ("Can't bind address");
+ remote_desc = accept (tmp_desc, (struct sockaddr *) &sockaddr,
+ &sockaddrsize);
- tmp = sizeof (sockaddr);
- remote_desc = accept (tmp_desc, (struct sockaddr *)&sockaddr, &tmp);
if (remote_desc == -1)
perror_with_name ("Accept failed");
- protoent = getprotobyname ("tcp");
- if (!protoent)
- perror_with_name ("getprotobyname");
-
/* Enable TCP keep alive process. */
tmp = 1;
- setsockopt (tmp_desc, SOL_SOCKET, SO_KEEPALIVE, (char *)&tmp, sizeof(tmp));
+ setsockopt (tmp_desc, SOL_SOCKET, SO_KEEPALIVE,
+ (char *) &tmp, sizeof (tmp));
/* Tell TCP not to delay small packets. This greatly speeds up
interactive response. */
tmp = 1;
- setsockopt (remote_desc, protoent->p_proto, TCP_NODELAY,
- (char *)&tmp, sizeof(tmp));
+ setsockopt (remote_desc, IPPROTO_TCP, TCP_NODELAY,
+ (char *) &tmp, sizeof (tmp));
+
+ if (getnameinfo ((struct sockaddr *) &sockaddr, sockaddrsize,
+ orig_host, sizeof (orig_host),
+ orig_port, sizeof (orig_port),
+ NI_NUMERICHOST | NI_NUMERICSERV) == 0)
+ {
+ fprintf (stderr, "Remote debugging from host %s, port %s\n",
+ orig_host, orig_port);
+ fflush (stderr);
+ }
+#ifndef USE_WIN32API
close (tmp_desc); /* No longer need this */
- signal (SIGPIPE, SIG_IGN); /* If we don't do this, then gdbreplay simply
- exits when the remote side dies. */
+ signal (SIGPIPE, SIG_IGN); /* If we don't do this, then
+ gdbreplay simply exits when
+ the remote side dies. */
+#else
+ closesocket (tmp_desc); /* No longer need this */
+#endif
}
+#if defined(F_SETFL) && defined (FASYNC)
fcntl (remote_desc, F_SETFL, FASYNC);
+#endif
fprintf (stderr, "Replay logfile using %s\n", name);
fflush (stderr);
}
-static int tohex (ch)
- int ch;
+static int
+fromhex (int ch)
{
if (ch >= '0' && ch <= '9')
{
}
static int
-logchar (fp)
- FILE *fp;
+logchar (FILE *fp)
{
int ch;
int ch2;
fflush (stdout);
switch (ch)
{
- case '\\': break;
- case 'b': ch = '\b'; break;
- case 'f': ch = '\f'; break;
- case 'n': ch = '\n'; break;
- case 'r': ch = '\r'; break;
- case 't': ch = '\t'; break;
- case 'v': ch = '\v'; break;
+ case '\\':
+ break;
+ case 'b':
+ ch = '\b';
+ break;
+ case 'f':
+ ch = '\f';
+ break;
+ case 'n':
+ ch = '\n';
+ break;
+ case 'r':
+ ch = '\r';
+ break;
+ case 't':
+ ch = '\t';
+ break;
+ case 'v':
+ ch = '\v';
+ break;
case 'x':
ch2 = fgetc (fp);
fputc (ch2, stdout);
fflush (stdout);
- ch = tohex (ch2) << 4;
+ ch = fromhex (ch2) << 4;
ch2 = fgetc (fp);
fputc (ch2, stdout);
fflush (stdout);
- ch |= tohex (ch2);
+ ch |= fromhex (ch2);
break;
default:
/* Treat any other char as just itself */
return (ch);
}
+static int
+gdbchar (int desc)
+{
+ unsigned char fromgdb;
+
+ if (read (desc, &fromgdb, 1) != 1)
+ return -1;
+ else
+ return fromgdb;
+}
+
/* Accept input from gdb and match with chars from fp (after skipping one
blank) up until a \n is read from fp (which is not matched) */
-void
-expect (fp)
- FILE *fp;
+static void
+expect (FILE *fp)
{
int fromlog;
- unsigned char fromgdb;
+ int fromgdb;
if ((fromlog = logchar (fp)) != ' ')
{
{
fromlog = logchar (fp);
if (fromlog == EOL)
- {
- break;
- }
- read (remote_desc, &fromgdb, 1);
- } while (fromlog == fromgdb);
+ break;
+ fromgdb = gdbchar (remote_desc);
+ if (fromgdb < 0)
+ remote_error ("Error during read from gdb");
+ }
+ while (fromlog == fromgdb);
+
if (fromlog != EOL)
{
- sync_error (fp, "Sync error during read of gdb packet", fromlog,
+ sync_error (fp, "Sync error during read of gdb packet from log", fromlog,
fromgdb);
}
}
/* Play data back to gdb from fp (after skipping leading blank) up until a
\n is read from fp (which is discarded and not sent to gdb). */
-void
-play (fp)
- FILE *fp;
+static void
+play (FILE *fp)
{
int fromlog;
char ch;
while ((fromlog = logchar (fp)) != EOL)
{
ch = fromlog;
- write (remote_desc, &ch, 1);
+ if (write (remote_desc, &ch, 1) != 1)
+ remote_error ("Error during write to gdb");
}
}
-int
-main (argc, argv)
- int argc;
- char *argv[];
+static void
+gdbreplay_version (void)
+{
+ printf ("GNU gdbreplay %s%s\n"
+ "Copyright (C) 2019 Free Software Foundation, Inc.\n"
+ "gdbreplay is free software, covered by "
+ "the GNU General Public License.\n"
+ "This gdbreplay was configured as \"%s\"\n",
+ PKGVERSION, version, host_name);
+}
+
+static void
+gdbreplay_usage (FILE *stream)
+{
+ fprintf (stream, "Usage:\tgdbreplay LOGFILE HOST:PORT\n");
+ if (REPORT_BUGS_TO[0] && stream == stdout)
+ fprintf (stream, "Report bugs to \"%s\".\n", REPORT_BUGS_TO);
+}
+
+/* Main function. This is called by the real "main" function,
+ wrapped in a TRY_CATCH that handles any uncaught exceptions. */
+
+static void ATTRIBUTE_NORETURN
+captured_main (int argc, char *argv[])
{
FILE *fp;
int ch;
+ if (argc >= 2 && strcmp (argv[1], "--version") == 0)
+ {
+ gdbreplay_version ();
+ exit (0);
+ }
+ if (argc >= 2 && strcmp (argv[1], "--help") == 0)
+ {
+ gdbreplay_usage (stdout);
+ exit (0);
+ }
+
if (argc < 3)
{
- fprintf (stderr, "Usage: gdbreplay <logfile> <host:port>\n");
- fflush (stderr);
+ gdbreplay_usage (stderr);
exit (1);
}
fp = fopen (argv[1], "r");
if (fp == NULL)
{
perror_with_name (argv[1]);
- }
+ }
remote_open (argv[2]);
while ((ch = logchar (fp)) != EOF)
{
exit (0);
}
+int
+main (int argc, char *argv[])
+{
+ TRY
+ {
+ captured_main (argc, argv);
+ }
+ CATCH (exception, RETURN_MASK_ALL)
+ {
+ if (exception.reason == RETURN_ERROR)
+ {
+ fflush (stdout);
+ fprintf (stderr, "%s\n", exception.message);
+ }
+
+ exit (1);
+ }
+ END_CATCH
+
+ gdb_assert_not_reached ("captured_main should never return");
+}
projects / external / binutils.git / blobdiff