111 lines
3.9 KiB
C
111 lines
3.9 KiB
C
/* Common things used by the various *gnu-nat.c files
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Copyright (C) 1995-2017 Free Software Foundation, Inc.
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Written by Miles Bader <miles@gnu.ai.mit.edu>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef __GNU_NAT_H__
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#define __GNU_NAT_H__
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#include <unistd.h>
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#include <mach.h>
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struct inf;
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extern struct inf *gnu_current_inf;
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/* Converts a GDB pid to a struct proc. */
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struct proc *inf_tid_to_thread (struct inf *inf, int tid);
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typedef void (inf_threads_ftype) (struct proc *thread, void *arg);
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/* Call F for every thread in inferior INF, passing ARG as second parameter. */
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void inf_threads (struct inf *inf, inf_threads_ftype *f, void *arg);
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/* Makes sure that INF's thread list is synced with the actual process. */
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int inf_update_procs (struct inf *inf);
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/* A proc is either a thread, or the task (there can only be one task proc
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because it always has the same TID, PROC_TID_TASK). */
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struct proc
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{
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thread_t port; /* The task or thread port. */
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int tid; /* The GDB pid (actually a thread id). */
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int num; /* An id number for threads, to print. */
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mach_port_t saved_exc_port; /* The task/thread's real exception port. */
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mach_port_t exc_port; /* Our replacement, which for. */
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int sc; /* Desired suspend count. */
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int cur_sc; /* Implemented suspend count. */
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int run_sc; /* Default sc when the program is running. */
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int pause_sc; /* Default sc when gdb has control. */
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int resume_sc; /* Sc resulting from the last resume. */
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int detach_sc; /* SC to leave around when detaching
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from program. */
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thread_state_data_t state; /* Registers, &c. */
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int state_valid:1; /* True if STATE is up to date. */
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int state_changed:1;
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int aborted:1; /* True if thread_abort has been called. */
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int dead:1; /* We happen to know it's actually dead. */
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/* Bit mask of registers fetched by gdb. This is used when we re-fetch
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STATE after aborting the thread, to detect that gdb may have out-of-date
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information. */
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unsigned long fetched_regs;
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struct inf *inf; /* Where we come from. */
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struct proc *next;
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};
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/* The task has a thread entry with this TID. */
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#define PROC_TID_TASK (-1)
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#define proc_is_task(proc) ((proc)->tid == PROC_TID_TASK)
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#define proc_is_thread(proc) ((proc)->tid != PROC_TID_TASK)
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extern int __proc_pid (struct proc *proc);
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/* Make sure that the state field in PROC is up to date, and return a
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pointer to it, or 0 if something is wrong. If WILL_MODIFY is true,
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makes sure that the thread is stopped and aborted first, and sets
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the state_changed field in PROC to true. */
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extern thread_state_t proc_get_state (struct proc *proc, int will_modify);
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/* Return printable description of proc. */
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extern char *proc_string (struct proc *proc);
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#define proc_debug(_proc, msg, args...) \
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do { struct proc *__proc = (_proc); \
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debug ("{proc %d/%d %s}: " msg, \
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__proc_pid (__proc), __proc->tid, \
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host_address_to_string (__proc) , ##args); } while (0)
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extern int gnu_debug_flag;
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#define debug(msg, args...) \
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do { if (gnu_debug_flag) \
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fprintf_unfiltered (gdb_stdlog, "%s:%d: " msg "\r\n", \
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__FILE__ , __LINE__ , ##args); } while (0)
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/* Create a prototype generic GNU/Hurd target. The client can
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override it with local methods. */
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struct target_ops *gnu_target (void);
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#endif /* __GNU_NAT_H__ */
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