mirror of
https://github.com/bminor/binutils-gdb.git
synced 2025-11-16 12:34:43 +00:00
0e7e416246
I noticed that check-include-guards.py doesn't error in certain situations -- but in situations where the --update flag would cause a file to be changed. This patch changes the script to issue an error for any discrepancy. It also fixes the headers that weren't correct. Approved-By: Simon Marchi <simon.marchi@efficios.com>
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
/* RAII class to install a separate handler for a given signal
|
|
|
|
Copyright (C) 2024 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 GDBSUPPORT_SCOPED_SIGNAL_HANDLER_H
|
|
#define GDBSUPPORT_SCOPED_SIGNAL_HANDLER_H
|
|
|
|
#include <signal.h>
|
|
|
|
#undef HAVE_SIGACTION
|
|
|
|
/* RAII class to set a signal handler for a scope, that will take care of
|
|
unsetting the handler when the scope is left.
|
|
This class will try to use sigaction whenever available, following the
|
|
recommendation on the man page for signal, and only fallback to signal
|
|
if necessary. */
|
|
template <int SIG>
|
|
class scoped_signal_handler
|
|
{
|
|
public:
|
|
scoped_signal_handler (sighandler_t handler)
|
|
{
|
|
#if defined (HAVE_SIGACTION)
|
|
struct sigaction act;
|
|
|
|
act.sa_handler = handler;
|
|
sigemptyset (&act.sa_mask);
|
|
act.sa_flags = 0;
|
|
sigaction (SIG, &act, &m_prev_handler);
|
|
#else
|
|
/* The return of the function call is the previous signal handler, or
|
|
SIG_ERR if the function doesn't succeed. */
|
|
m_prev_handler = signal (SIG, handler);
|
|
/* According to the GNU libc manual, the only way signal fails is if
|
|
the signum given is invalid, so we should be safe to assert. */
|
|
gdb_assert (m_prev_handler != SIG_ERR);
|
|
#endif
|
|
}
|
|
|
|
~scoped_signal_handler ()
|
|
{
|
|
#if defined (HAVE_SIGACTION)
|
|
sigaction (SIG, &m_prev_handler, nullptr);
|
|
#else
|
|
signal (SIG, m_prev_handler);
|
|
#endif
|
|
}
|
|
|
|
DISABLE_COPY_AND_ASSIGN (scoped_signal_handler);
|
|
private:
|
|
#if defined (HAVE_SIGACTION)
|
|
struct sigaction m_prev_handler;
|
|
#else
|
|
sighandler_t m_prev_handler;
|
|
#endif
|
|
};
|
|
|
|
#endif /* GDBSUPPORT_SCOPED_SIGNAL_HANDLER_H */
|