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// Debugging support -*- C++ -*-
// Copyright The GNU Toolchain Authors.
//
// This file is part of the GNU ISO C++ Library. This library 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.
// This library 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.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file include/debugging
* This is a Standard C++ Library header.
*/
#ifndef _GLIBCXX_DEBUGGING
#define _GLIBCXX_DEBUGGING 1
#define __glibcxx_want_debugging
#include <bits/version.h>
#if __cpp_lib_debugging // C++ >= 26
namespace std _GLIBCXX_VISIBILITY(default)
{
// N.B. _GLIBCXX_BEGIN_NAMESPACE_VERSION is not used here.
/** Try to determine if the program is running under control of a debugger.
*
* On GNU/Linux systems this function will only return true if the program
* is being traced by another program which is known to be a debugger.
* This is determined by checking the command name of the tracing program
* against a list of known debuggers, such as "gdb".
*
* On other POSIX-based systems, this function will return true if the
* program is being traced by any other process, which means it can return
* true for non-debugger utilities that use the ptrace system call.
*
* @since C++26
*/
bool
is_debugger_present() noexcept;
/** Stop the program with a breakpoint or debug trap.
*
* The details of how a breakpoint is implemented are platform-specific.
* Some systems provide a special instruction, such as `int3` in x86.
* When no more appropriate mechanism is available, this will stop the
* program using `__builtin_trap()`. It might not be possible for the
* program to continue after such a breakpoint.
*
* @since C++26
*/
void
breakpoint() noexcept;
/** Stop the program if it is running under control of a debugger.
*
* @since C++26
*/
void
breakpoint_if_debugging() noexcept;
} // namespace std
#endif
#endif // _GLIBCXX_DEBUGGING
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