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