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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., 675 Mass Ave, Cambridge, MA 02139, 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 form 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STATE after aborting the thread, to detect that gdb may have out-of-date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__ */
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