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, Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef NM_M3_H
  22 #define NM_M3_H
  23
  24 #include <mach.h>
  25
  26 /* Mach3 doesn't declare errno in <errno.h>.  */
  27 extern int errno;
  28
  29 /* Task port of our debugged inferior. */
  30
  31 extern task_t inferior_task;
  32
  33 /* Thread port of the current thread in the inferior. */
  34
  35 extern thread_t current_thread;
  36
  37 /* If nonzero, we must suspend/abort && resume threads
  38  * when setting or getting the state.
  39  */
  40 extern int must_suspend_thread;
  41
  42 #define PREPARE_TO_PROCEED(select_it) mach3_prepare_to_proceed(select_it)
  43
  44 /* Try to get the privileged host port for authentication to machid
  45  *
  46  * If you can get this, you may debug anything on this host.
  47  *
  48  * If you can't, gdb gives it's own task port as the
  49  * authentication port
  50  */
  51 #define  mach_privileged_host_port() task_by_pid(-1)
  52
  53 /*
  54  * This is the MIG ID number of the emulator/server bsd_execve() RPC call.
  55  *
  56  * It SHOULD never change, but if it does, gdb `run'
  57  * command won't work until you fix this define.
  58  *
  59  */
  60 #define MIG_EXEC_SYSCALL_ID             101000
  61
  62 /* If our_message_port gets a msg with this ID,
  63  * GDB suspends it's inferior and enters command level.
  64  * (Useful at least if ^C does not work)
  65  */
  66 #define GDB_MESSAGE_ID_STOP                     0x41151
  67
  68 /* wait3 WNOHANG is defined in <sys/wait.h> but
  69  * for some reason gdb does not want to include
  70  * that file.
  71  *
  72  * If your system defines WNOHANG differently, this has to be changed.
  73  */
  74 #define WNOHANG 1
  75
  76 /* Before storing, we need to read all the registers.  */
  77
  78 #define CHILD_PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES)
  79
  80 /* Check if the inferior exists */
  81 #define MACH_ERROR_NO_INFERIOR \
  82   do if (!MACH_PORT_VALID (inferior_task)) \
  83         error ("Inferior task does not exist."); while(0)
  84
  85 /* Error handler for mach calls */
  86 #define CHK(str,ret)    \
  87   do if (ret != KERN_SUCCESS) \
  88        error ("Gdb %s [%d] %s : %s\n",__FILE__,__LINE__,str, \
  89               mach_error_string(ret)); while(0)
  90
  91 /* This is from POE9 emulator/emul_stack.h
  92  */
  93 /*
  94  * Top of emulator stack holds link and reply port.
  95  */
  96 struct emul_stack_top {
  97         struct emul_stack_top   *link;
  98         mach_port_t             reply_port;
  99 };
 100
 101 #define EMULATOR_STACK_SIZE (4096*4)
 102
 103 #define THREAD_ALLOWED_TO_BREAK(mid) mach_thread_for_breakpoint (mid)
 104
 105 #define THREAD_PARSE_ID(arg) mach_thread_parse_id (arg)
 106
 107 #define THREAD_OUTPUT_ID(mid) mach_thread_output_id (mid)
 108
 109 #define ATTACH_TO_THREAD attach_to_thread
 110
 111 /* Don't do wait_for_inferior on attach.  */
 112 #define ATTACH_NO_WAIT
 113
 114 /* Do Mach 3 dependent operations when ^C or a STOP is requested */
 115 #define DO_QUIT() mach3_quit ()
 116
 117 #if 0
 118 /* This is bogus.  It is NOT OK to quit out of target_wait.  */
 119 /* If in mach_msg() and ^C is typed set immediate_quit */
 120 #define REQUEST_QUIT() mach3_request_quit ()
 121 #endif
 122
 123 #endif /* NM_M3_H */