90 lines
3 KiB
C
90 lines
3 KiB
C
/* Multi-thread control defs for remote server for GDB.
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Copyright (C) 1993-2016 Free Software Foundation, Inc.
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This file is part of GDB.
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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 GDB_THREAD_H
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#define GDB_THREAD_H
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#include "inferiors.h"
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struct btrace_target_info;
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struct regcache;
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struct thread_info
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{
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/* This must appear first. See inferiors.h.
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The list iterator functions assume it. */
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struct inferior_list_entry entry;
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void *target_data;
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struct regcache *regcache_data;
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/* The last resume GDB requested on this thread. */
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enum resume_kind last_resume_kind;
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/* The last wait status reported for this thread. */
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struct target_waitstatus last_status;
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/* True if LAST_STATUS hasn't been reported to GDB yet. */
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int status_pending_p;
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/* Given `while-stepping', a thread may be collecting data for more
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than one tracepoint simultaneously. E.g.:
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ff0001 INSN1 <-- TP1, while-stepping 10 collect $regs
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ff0002 INSN2
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ff0003 INSN3 <-- TP2, collect $regs
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ff0004 INSN4 <-- TP3, while-stepping 10 collect $regs
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ff0005 INSN5
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Notice that when instruction INSN5 is reached, the while-stepping
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actions of both TP1 and TP3 are still being collected, and that TP2
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had been collected meanwhile. The whole range of ff0001-ff0005
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should be single-stepped, due to at least TP1's while-stepping
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action covering the whole range.
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On the other hand, the same tracepoint with a while-stepping action
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may be hit by more than one thread simultaneously, hence we can't
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keep the current step count in the tracepoint itself.
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This is the head of the list of the states of `while-stepping'
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tracepoint actions this thread is now collecting; NULL if empty.
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Each item in the list holds the current step of the while-stepping
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action. */
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struct wstep_state *while_stepping;
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/* Branch trace target information for this thread. */
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struct btrace_target_info *btrace;
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};
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extern struct inferior_list all_threads;
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void remove_thread (struct thread_info *thread);
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struct thread_info *add_thread (ptid_t ptid, void *target_data);
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struct thread_info *get_first_thread (void);
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struct thread_info *find_thread_ptid (ptid_t ptid);
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/* Find any thread of the PID process. Returns NULL if none is
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found. */
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struct thread_info *find_any_thread_of_pid (int pid);
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/* Get current thread ID (Linux task ID). */
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#define current_ptid (current_thread->entry.id)
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#endif /* GDB_THREAD_H */
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