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/* Mach 3.0 common definitions and global vars.
Copyright (C) 1992 Free Software Foundation, Inc.
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 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifndef _OS_MACH3_H_
#define _OS_MACH3_H
#include <mach.h>
/* Mach3 doesn't declare errno in <errno.h>. */
extern int errno;
/* Task port of our debugged inferior. */
extern task_t inferior_task;
/* Thread port of the current thread in the inferior. */
extern thread_t current_thread;
/* If nonzero, we must suspend/abort && resume threads
* when setting or getting the state.
*/
extern int must_suspend_thread;
/* Get relevant ports when creating a new inferior */
#define CREATE_INFERIOR_HOOK(pid) mach_create_inferior_hook(pid)
/* wait for the inferior to change state */
#define INFERIOR_WAIT_HOOK(w) mach_really_wait(w)
/* After fork() call this before exec() in the inferior task */
#define PREPARE_INFERIOR prepare_inferior_task
/* Startup the inferior task and suspend it after the correct code is loaded */
#define STARTUP_INFERIOR(x) intercept_exec_calls(x)
#define PREPARE_TO_PROCEED(select_it) mach3_prepare_to_proceed(select_it)
/* Try to get the privileged host port for authentication to machid
*
* If you can get this, you may debug anything on this host.
*
* If you can't, gdb gives it's own task port as the
* authentication port
*/
#define mach_privileged_host_port() task_by_pid(-1)
/*
* This is the MIG ID number of the emulator/server bsd_execve() RPC call.
*
* It SHOULD never change, but if it does, gdb `run'
* command won't work until you fix this define.
*
*/
#define MIG_EXEC_SYSCALL_ID 101000
/* If our_message_port gets a msg with this ID,
* GDB suspends it's inferior and enters command level.
* (Useful at least if ^C does not work)
*/
#define GDB_MESSAGE_ID_STOP 0x41151
/* wait3 WNOHANG is defined in <sys/wait.h> but
* for some reason gdb does not want to include
* that file.
*
* If your system defines WNOHANG differently, this has to be changed.
*/
#define WNOHANG 1
/* Before storing, we need to read all the registers. */
#define CHILD_PREPARE_TO_STORE() read_register_bytes (0, NULL, REGISTER_BYTES)
/* Check if the inferior exists */
#define MACH_ERROR_NO_INFERIOR \
do if (!MACH_PORT_VALID (inferior_task)) \
error ("Inferior task does not exist."); while(0)
/* Error handler for mach calls */
#define CHK(str,ret) \
do if (ret != KERN_SUCCESS) \
error ("Gdb %s [%d] %s : %s\n",__FILE__,__LINE__,str, \
mach_error_string(ret)); while(0)
/* This is from POE9 emulator/emul_stack.h
*/
/*
* Top of emulator stack holds link and reply port.
*/
struct emul_stack_top {
struct emul_stack_top *link;
mach_port_t reply_port;
};
#define EMULATOR_STACK_SIZE (4096*4)
#define THREAD_ALLOWED_TO_BREAK(mid) mach_thread_for_breakpoint (mid)
#define THREAD_PARSE_ID(arg) mach_thread_parse_id (arg)
#define THREAD_OUTPUT_ID(mid) mach_thread_output_id (mid)
#define ATTACH_TO_THREAD attach_to_thread
/* Do Mach 3 dependent operations when ^C or a STOP is requested */
#define DO_QUIT() mach3_quit ()
/* If in mach_msg() and ^C is typed set immediate_quit */
#define REQUEST_QUIT() mach3_request_quit ()
#endif /* _OS_MACH3_H_ */
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