| 1 | /* A client to make GDB return to command level in Mach 3. |
| 2 | Copyright (C) 1992, 1993 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | /* Authors: Jukka Virtanen <jtv@hut.fi> and Peter Stout <pds@cs.cmu.edu>. |
| 21 | |
| 22 | A simple client to make GDB (versions 4.4 and later) on Mach 3 return |
| 23 | to the command level when it is waiting for the inferior to stop. |
| 24 | |
| 25 | Actions: Lookup the send right to the GDB message port from the |
| 26 | NetMsgServer. |
| 27 | |
| 28 | Send an asynchronous message with msgh_id |
| 29 | GDB_MESSAGE_ID_STOP to that port. |
| 30 | */ |
| 31 | |
| 32 | #include <stdio.h> |
| 33 | |
| 34 | #include "defs.h" |
| 35 | |
| 36 | #include <mach.h> |
| 37 | #include <mach/message.h> |
| 38 | #include <mach_error.h> |
| 39 | #include <servers/netname.h> |
| 40 | #include <servers/netname_defs.h> |
| 41 | |
| 42 | void |
| 43 | main (argc, argv) |
| 44 | int argc; |
| 45 | char **argv; |
| 46 | { |
| 47 | kern_return_t kr; |
| 48 | mach_msg_header_t msg; |
| 49 | mach_port_t gdb_port; |
| 50 | char *host; |
| 51 | char *name; |
| 52 | |
| 53 | if (argc == 1) |
| 54 | argv[argc++] = GDB_DEF_NAME; |
| 55 | |
| 56 | if (argc != 2) |
| 57 | { |
| 58 | fprintf (stderr, "Usage : %s <GDB name>\n", argv[0]); |
| 59 | exit (1); |
| 60 | } |
| 61 | |
| 62 | /* Allow the user to specify a remote host. */ |
| 63 | host = strchr (argv[1], '@'); |
| 64 | if (host) |
| 65 | *(host++) = '\0'; |
| 66 | else |
| 67 | host = (char *) ""; |
| 68 | |
| 69 | name = malloc (strlen (argv[1]) + sizeof(GDB_NAME_PREFIX)); |
| 70 | if (name == NULL) |
| 71 | { |
| 72 | fprintf (stderr, "Unable to allocate memory for name."); |
| 73 | exit (1); |
| 74 | } |
| 75 | |
| 76 | strcpy (name, GDB_NAME_PREFIX); |
| 77 | strcat (name, argv[1]); |
| 78 | |
| 79 | /* Look up the GDB service port. For convenience, add the |
| 80 | GDB_NAME_PREFIX the argument before looking up the name. |
| 81 | For backwards compatibility, do it without. */ |
| 82 | |
| 83 | kr = netname_look_up (name_server_port, host, name, &gdb_port); |
| 84 | if (kr == NETNAME_NOT_CHECKED_IN) |
| 85 | kr = netname_look_up (name_server_port, host, argv[1], &gdb_port); |
| 86 | if (kr != KERN_SUCCESS) |
| 87 | { |
| 88 | fprintf (stderr, "Unable to lookup the GDB service port: %s.\n", |
| 89 | mach_error_string(kr)); |
| 90 | exit(1); |
| 91 | } |
| 92 | |
| 93 | /* Code generated by mig stub generator, with minor cleanups :-) |
| 94 | |
| 95 | simpleroutine stop_inferior(gdb_port : mach_port_t); */ |
| 96 | |
| 97 | msg.msgh_bits = MACH_MSGH_BITS (MACH_MSG_TYPE_COPY_SEND, 0); |
| 98 | msg.msgh_remote_port = gdb_port; |
| 99 | msg.msgh_local_port = MACH_PORT_NULL; |
| 100 | msg.msgh_size = sizeof(msg); |
| 101 | msg.msgh_seqno = 0; |
| 102 | msg.msgh_id = GDB_MESSAGE_ID_STOP; |
| 103 | |
| 104 | kr = mach_msg_send (&msg); |
| 105 | if (kr != KERN_SUCCESS) |
| 106 | fprintf (stderr, "Message not sent, return code %d : %s\n", kr, |
| 107 | mach_error_string (kr)); |
| 108 | |
| 109 | exit (kr != KERN_SUCCESS); |
| 110 | } |