1 /* A client to make GDB return to command level in Mach 3. 2 Copyright 1992, 1993, 1994, 2000 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 2 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, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 /* Authors: Jukka Virtanen <jtv@hut.fi> and Peter Stout <pds@cs.cmu.edu>. 22 23 A simple client to make GDB (versions 4.4 and later) on Mach 3 return 24 to the command level when it is waiting for the inferior to stop. 25 26 Actions: Lookup the send right to the GDB message port from the 27 NetMsgServer. 28 29 Send an asynchronous message with msgh_id 30 GDB_MESSAGE_ID_STOP to that port. 31 */ 32 33 #include <stdio.h> 34 35 #include "defs.h" 36 37 #include <mach.h> 38 #include <mach/message.h> 39 #include <mach_error.h> 40 #include <servers/netname.h> 41 #include <servers/netname_defs.h> 42 43 void 44 main (int argc, char **argv) 45 { 46 kern_return_t kr; 47 mach_msg_header_t msg; 48 mach_port_t gdb_port; 49 char *host; 50 char *name; 51 52 if (argc == 1) 53 argv[argc++] = GDB_DEF_NAME; 54 55 if (argc != 2) 56 { 57 fprintf (stderr, "Usage : %s <GDB name>\n", argv[0]); 58 exit (1); 59 } 60 61 /* Allow the user to specify a remote host. */ 62 host = strchr (argv[1], '@'); 63 if (host) 64 *(host++) = '\0'; 65 else 66 host = (char *) ""; 67 68 name = malloc (strlen (argv[1]) + sizeof (GDB_NAME_PREFIX)); 69 if (name == NULL) 70 { 71 fprintf (stderr, "Unable to allocate memory for name."); 72 exit (1); 73 } 74 75 strcpy (name, GDB_NAME_PREFIX); 76 strcat (name, argv[1]); 77 78 /* Look up the GDB service port. For convenience, add the 79 GDB_NAME_PREFIX the argument before looking up the name. 80 For backwards compatibility, do it without. */ 81 82 kr = netname_look_up (name_server_port, host, name, &gdb_port); 83 if (kr == NETNAME_NOT_CHECKED_IN) 84 kr = netname_look_up (name_server_port, host, argv[1], &gdb_port); 85 if (kr != KERN_SUCCESS) 86 { 87 fprintf (stderr, "Unable to lookup the GDB service port: %s.\n", 88 mach_error_string (kr)); 89 exit (1); 90 } 91 92 /* Code generated by mig stub generator, with minor cleanups :-) 93 94 simpleroutine stop_inferior(gdb_port : mach_port_t); */ 95 96 msg.msgh_bits = MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, 0); 97 msg.msgh_remote_port = gdb_port; 98 msg.msgh_local_port = MACH_PORT_NULL; 99 msg.msgh_size = sizeof (msg); 100 msg.msgh_seqno = 0; 101 msg.msgh_id = GDB_MESSAGE_ID_STOP; 102 103 kr = mach_msg_send (&msg); 104 if (kr != KERN_SUCCESS) 105 fprintf (stderr, "Message not sent, return code %d : %s\n", kr, 106 mach_error_string (kr)); 107 108 exit (kr != KERN_SUCCESS); 109 } 110