62e77f56f0
Per discussion on gdb-patches with Joel, this patch turns off multihreaded symbol loading by default. It can be turned on using: maint set worker-threads unlimited To keep the behavior as close as possible to the old code, it still calls symbol_set_names in the old place if n_worker_threads is 0. gdb/ChangeLog: 2019-11-27 Christian Biesinger <cbiesinger@google.com> * maint.c (n_worker_threads): Default to 0. (worker_threads_disabled): New function. * maint.h (worker_threads_disabled): New function. * minsyms.c (minimal_symbol_reader::record_full): Call symbol_set_names here if worker_threads_disabled () is true. (minimal_symbol_reader::install): Skip all threading if worker_threads_disabled () is true. Change-Id: I92ba4f6bbf07363189666327cad452d6b9c8e01d
69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
/* Support for GDB maintenance commands.
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Copyright (C) 2013-2019 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 MAINT_H
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#define MAINT_H
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#include "gdbsupport/run-time-clock.h"
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#include <chrono>
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extern void set_per_command_time (int);
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extern void set_per_command_space (int);
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extern bool worker_threads_disabled ();
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/* Records a run time and space usage to be used as a base for
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reporting elapsed time or change in space. */
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class scoped_command_stats
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{
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public:
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explicit scoped_command_stats (bool msg_type);
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~scoped_command_stats ();
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private:
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DISABLE_COPY_AND_ASSIGN (scoped_command_stats);
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/* Print the time, along with a string. */
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void print_time (const char *msg);
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/* Zero if the saved time is from the beginning of GDB execution.
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One if from the beginning of an individual command execution. */
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bool m_msg_type;
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/* Track whether the stat was enabled at the start of the command
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so that we can avoid printing anything if it gets turned on by
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the current command. */
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int m_time_enabled : 1;
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int m_space_enabled : 1;
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int m_symtab_enabled : 1;
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run_time_clock::time_point m_start_cpu_time;
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std::chrono::steady_clock::time_point m_start_wall_time;
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long m_start_space;
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/* Total number of symtabs (over all objfiles). */
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int m_start_nr_symtabs;
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/* A count of the compunits. */
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int m_start_nr_compunit_symtabs;
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/* Total number of blocks. */
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int m_start_nr_blocks;
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};
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#endif /* MAINT_H */
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