1 /* Common things used by the various *gnu-nat.c files 2 Copyright 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc. 3 4 Written by Miles Bader <miles@gnu.ai.mit.edu> 5 6 The GNU Hurd is free software; you can redistribute it and/or 7 modify it under the terms of the GNU General Public License as 8 published by the Free Software Foundation; either version 2, or (at 9 your option) any later version. 10 11 The GNU Hurd is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, 19 Boston, MA 02111-1307, USA. */ 20 21 #ifndef __GNU_NAT_H__ 22 #define __GNU_NAT_H__ 23 24 #include <unistd.h> 25 #include <mach.h> 26 27 struct inf; 28 29 extern struct inf *current_inferior; 30 31 /* Converts a GDB pid to a struct proc. */ 32 struct proc *inf_tid_to_thread (struct inf *inf, int tid); 33 34 /* Makes sure that INF's thread list is synced with the actual process. */ 35 int inf_update_procs (struct inf *inf); 36 37 /* A proc is either a thread, or the task (there can only be one task proc 38 because it always has the same TID, PROC_TID_TASK). */ 39 struct proc 40 { 41 thread_t port; /* The task or thread port. */ 42 int tid; /* The GDB pid (actually a thread id). */ 43 int num; /* An id number for threads, to print. */ 44 45 mach_port_t saved_exc_port; /* The task/thread's real exception port. */ 46 mach_port_t exc_port; /* Our replacement, which for. */ 47 48 int sc; /* Desired suspend count. */ 49 int cur_sc; /* Implemented suspend count. */ 50 int run_sc; /* Default sc when the program is running. */ 51 int pause_sc; /* Default sc when gdb has control. */ 52 int resume_sc; /* Sc resulting from the last resume. */ 53 int detach_sc; /* SC to leave around when detaching 54 from program. */ 55 56 thread_state_data_t state; /* Registers, &c. */ 57 int state_valid:1; /* True if STATE is up to date. */ 58 int state_changed:1; 59 60 int aborted:1; /* True if thread_abort has been called. */ 61 int dead:1; /* We happen to know it's actually dead. */ 62 63 /* Bit mask of registers fetched by gdb. This is used when we re-fetch 64 STATE after aborting the thread, to detect that gdb may have out-of-date 65 information. */ 66 unsigned long fetched_regs; 67 68 struct inf *inf; /* Where we come from. */ 69 70 struct proc *next; 71 }; 72 73 /* The task has a thread entry with this TID. */ 74 #define PROC_TID_TASK (-1) 75 76 #define proc_is_task(proc) ((proc)->tid == PROC_TID_TASK) 77 #define proc_is_thread(proc) ((proc)->tid != PROC_TID_TASK) 78 79 extern int __proc_pid (struct proc *proc); 80 81 /* Make sure that the state field in PROC is up to date, and return a 82 pointer to it, or 0 if something is wrong. If WILL_MODIFY is true, 83 makes sure that the thread is stopped and aborted first, and sets 84 the state_changed field in PROC to true. */ 85 extern thread_state_t proc_get_state (struct proc *proc, int will_modify); 86 87 /* Return printable description of proc. */ 88 extern char *proc_string (struct proc *proc); 89 90 #define proc_debug(_proc, msg, args...) \ 91 do { struct proc *__proc = (_proc); \ 92 debug ("{proc %d/%d %p}: " msg, \ 93 __proc_pid (__proc), __proc->tid, __proc , ##args); } while (0) 94 95 extern int gnu_debug_flag; 96 97 #define debug(msg, args...) \ 98 do { if (gnu_debug_flag) \ 99 fprintf_unfiltered (gdb_stdlog, "%s:%d: " msg "\r\n", __FILE__ , __LINE__ , ##args); } while (0) 100 101 #endif /* __GNU_NAT_H__ */ 102