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+/* Common things used by the various *gnu-nat.c files
+ Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+
+Written by Miles Bader <miles@gnu.ai.mit.edu>
+
+The GNU Hurd 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, or (at
+your option) any later version.
+
+The GNU Hurd 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef __GNU_NAT_H__
+#define __GNU_NAT_H__
+
+#include <unistd.h>
+#include <mach.h>
+
+struct inf;
+
+extern struct inf *current_inferior;
+
+/* Converts a GDB pid to a struct proc. */
+struct proc *inf_tid_to_thread (struct inf *inf, int tid);
+
+/* A proc is either a thread, or the task (there can only be one task proc
+ because it always has the same TID, PROC_TID_TASK). */
+struct proc
+{
+ thread_t port; /* The task or thread port. */
+ int tid; /* The GDB pid (actually a thread id). */
+ int num; /* An id number for threads, to print. */
+
+ mach_port_t saved_exc_port; /* The task/thread's real exception port. */
+ mach_port_t exc_port; /* Our replacement, which for. */
+
+ int sc; /* Desired suspend count. */
+ int cur_sc; /* Implemented suspend count. */
+ int run_sc; /* Default sc when the program is running. */
+ int pause_sc; /* Default sc when gdb has control. */
+ int resume_sc; /* Sc resulting from the last resume. */
+ int detach_sc; /* SC to leave around when detaching
+ from program. */
+
+ thread_state_data_t state; /* Registers, &c. */
+ int state_valid : 1; /* True if STATE is up to date. */
+ int state_changed : 1;
+
+ int aborted : 1; /* True if thread_abort has been called. */
+ int dead : 1; /* We happen to know it's actually dead. */
+
+ /* Bit mask of registers fetched by gdb. This is used when we re-fetch
+ STATE after aborting the thread, to detect that gdb may have out-of-date
+ information. */
+ unsigned long fetched_regs;
+
+ struct inf *inf; /* Where we come from. */
+
+ struct proc *next;
+};
+
+/* The task has a thread entry with this TID. */
+#define PROC_TID_TASK (-1)
+
+#define proc_is_task(proc) ((proc)->tid == PROC_TID_TASK)
+#define proc_is_thread(proc) ((proc)->tid != PROC_TID_TASK)
+
+extern int __proc_pid (struct proc *proc);
+
+extern thread_state_t proc_get_state (struct proc *proc, int will_modify);
+
+#define proc_debug(_proc, msg, args...) \
+ do { struct proc *__proc = (_proc); \
+ debug ("{proc %d/%d %p}: " msg, \
+ __proc_pid (__proc), __proc->tid, __proc , ##args); } while (0)
+
+#if MAINTENANCE_CMDS
+extern int gnu_debug_flag;
+#define debug(msg, args...) \
+ do { if (gnu_debug_flag) \
+ fprintf (stderr, "%s: " msg "\r\n", __FUNCTION__ , ##args); } while (0)
+#else
+#define debug(msg, args...) (void)0
+#endif
+
+#endif /* __GNU_NAT_H__ */