1 /* Common things used by the various *gnu-nat.c files 2 Copyright (C) 1995-2015 Free Software Foundation, Inc. 3 4 Written by Miles Bader <miles@gnu.ai.mit.edu> 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU 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, see <http://www.gnu.org/licenses/>. */ 18 19 #ifndef __GNU_NAT_H__ 20 #define __GNU_NAT_H__ 21 22 #include <unistd.h> 23 #include <mach.h> 24 25 struct inf; 26 27 extern struct inf *gnu_current_inf; 28 29 /* Converts a GDB pid to a struct proc. */ 30 struct proc *inf_tid_to_thread (struct inf *inf, int tid); 31 32 typedef void (inf_threads_ftype) (struct proc *thread, void *arg); 33 34 /* Call F for every thread in inferior INF, passing ARG as second parameter. */ 35 void inf_threads (struct inf *inf, inf_threads_ftype *f, void *arg); 36 37 /* Makes sure that INF's thread list is synced with the actual process. */ 38 int inf_update_procs (struct inf *inf); 39 40 /* A proc is either a thread, or the task (there can only be one task proc 41 because it always has the same TID, PROC_TID_TASK). */ 42 struct proc 43 { 44 thread_t port; /* The task or thread port. */ 45 int tid; /* The GDB pid (actually a thread id). */ 46 int num; /* An id number for threads, to print. */ 47 48 mach_port_t saved_exc_port; /* The task/thread's real exception port. */ 49 mach_port_t exc_port; /* Our replacement, which for. */ 50 51 int sc; /* Desired suspend count. */ 52 int cur_sc; /* Implemented suspend count. */ 53 int run_sc; /* Default sc when the program is running. */ 54 int pause_sc; /* Default sc when gdb has control. */ 55 int resume_sc; /* Sc resulting from the last resume. */ 56 int detach_sc; /* SC to leave around when detaching 57 from program. */ 58 59 thread_state_data_t state; /* Registers, &c. */ 60 int state_valid:1; /* True if STATE is up to date. */ 61 int state_changed:1; 62 63 int aborted:1; /* True if thread_abort has been called. */ 64 int dead:1; /* We happen to know it's actually dead. */ 65 66 /* Bit mask of registers fetched by gdb. This is used when we re-fetch 67 STATE after aborting the thread, to detect that gdb may have out-of-date 68 information. */ 69 unsigned long fetched_regs; 70 71 struct inf *inf; /* Where we come from. */ 72 73 struct proc *next; 74 }; 75 76 /* The task has a thread entry with this TID. */ 77 #define PROC_TID_TASK (-1) 78 79 #define proc_is_task(proc) ((proc)->tid == PROC_TID_TASK) 80 #define proc_is_thread(proc) ((proc)->tid != PROC_TID_TASK) 81 82 extern int __proc_pid (struct proc *proc); 83 84 /* Make sure that the state field in PROC is up to date, and return a 85 pointer to it, or 0 if something is wrong. If WILL_MODIFY is true, 86 makes sure that the thread is stopped and aborted first, and sets 87 the state_changed field in PROC to true. */ 88 extern thread_state_t proc_get_state (struct proc *proc, int will_modify); 89 90 /* Return printable description of proc. */ 91 extern char *proc_string (struct proc *proc); 92 93 #define proc_debug(_proc, msg, args...) \ 94 do { struct proc *__proc = (_proc); \ 95 debug ("{proc %d/%d %s}: " msg, \ 96 __proc_pid (__proc), __proc->tid, \ 97 host_address_to_string (__proc) , ##args); } while (0) 98 99 extern int gnu_debug_flag; 100 101 #define debug(msg, args...) \ 102 do { if (gnu_debug_flag) \ 103 fprintf_unfiltered (gdb_stdlog, "%s:%d: " msg "\r\n", \ 104 __FILE__ , __LINE__ , ##args); } while (0) 105 106 /* Create a prototype generic GNU/Hurd target. The client can 107 override it with local methods. */ 108 struct target_ops *gnu_target (void); 109 110 #endif /* __GNU_NAT_H__ */ 111