gdb/config/nm-m3.h

   1 /* Mach 3.0 common definitions and global vars.
   2
   3    Copyright (C) 1992 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef NM_M3_H
  23 #define NM_M3_H
  24
  25 #include <mach.h>
  26
  27 /* Mach3 doesn't declare errno in <errno.h>.  */
  28 extern int errno;
  29
  30 /* Task port of our debugged inferior. */
  31
  32 extern task_t inferior_task;
  33
  34 /* Thread port of the current thread in the inferior. */
  35
  36 extern thread_t current_thread;
  37
  38 /* If nonzero, we must suspend/abort && resume threads
  39  * when setting or getting the state.
  40  */
  41 extern int must_suspend_thread;
  42
  43 #define PREPARE_TO_PROCEED(select_it) mach3_prepare_to_proceed(select_it)
  44
  45 /* Try to get the privileged host port for authentication to machid
  46
  47  * If you can get this, you may debug anything on this host.
  48  *
  49  * If you can't, gdb gives it's own task port as the
  50  * authentication port
  51  */
  52 #define  mach_privileged_host_port() task_by_pid(-1)
  53
  54 /*
  55  * This is the MIG ID number of the emulator/server bsd_execve() RPC call.
  56  *
  57  * It SHOULD never change, but if it does, gdb `run'
  58  * command won't work until you fix this define.
  59  *
  60  */
  61 #define MIG_EXEC_SYSCALL_ID             101000
  62
  63 /* If our_message_port gets a msg with this ID,
  64  * GDB suspends it's inferior and enters command level.
  65  * (Useful at least if ^C does not work)
  66  */
  67 #define GDB_MESSAGE_ID_STOP                     0x41151
  68
  69 /* wait3 WNOHANG is defined in <sys/wait.h> but
  70  * for some reason gdb does not want to include
  71  * that file.
  72  *
  73  * If your system defines WNOHANG differently, this has to be changed.
  74  */
  75 #define WNOHANG 1
  76
  77 /* Before storing, we need to read all the registers.  */
  78
  79 #define CHILD_PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES)
  80
  81 /* Check if the inferior exists */
  82 #define MACH_ERROR_NO_INFERIOR \
  83   do if (!MACH_PORT_VALID (inferior_task)) \
  84         error ("Inferior task does not exist."); while(0)
  85
  86 /* Error handler for mach calls */
  87 #define CHK(str,ret)    \
  88   do if (ret != KERN_SUCCESS) \
  89        error ("Gdb %s [%d] %s : %s\n",__FILE__,__LINE__,str, \
  90               mach_error_string(ret)); while(0)
  91
  92 /* This is from POE9 emulator/emul_stack.h
  93  */
  94 /*
  95  * Top of emulator stack holds link and reply port.
  96  */
  97 struct emul_stack_top
  98   {
  99     struct emul_stack_top *link;
 100     mach_port_t reply_port;
 101   };
 102
 103 #define EMULATOR_STACK_SIZE (4096*4)
 104
 105 #define THREAD_ALLOWED_TO_BREAK(mid) mach_thread_for_breakpoint (mid)
 106
 107 #define THREAD_PARSE_ID(arg) mach_thread_parse_id (arg)
 108
 109 #define THREAD_OUTPUT_ID(mid) mach_thread_output_id (mid)
 110
 111 #define ATTACH_TO_THREAD attach_to_thread
 112
 113 /* Don't do wait_for_inferior on attach.  */
 114 #define ATTACH_NO_WAIT
 115
 116 /* Do Mach 3 dependent operations when ^C or a STOP is requested */
 117 #define DO_QUIT() mach3_quit ()
 118
 119 #if 0
 120 /* This is bogus.  It is NOT OK to quit out of target_wait.  */
 121 /* If in mach_msg() and ^C is typed set immediate_quit */
 122 #define REQUEST_QUIT() mach3_request_quit ()
 123 #endif
 124
 125 #endif /* NM_M3_H */