1 files changed, 40 insertions, 0 deletions
diff --git a/gdbsupport/signals-state-save-restore.h b/gdbsupport/signals-state-save-restore.h
new file mode 100644
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+++ b/gdbsupport/signals-state-save-restore.h
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+/* Copyright (C) 2016-2020 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 COMMON_SIGNALS_STATE_SAVE_RESTORE_H
+#define COMMON_SIGNALS_STATE_SAVE_RESTORE_H
+
+/* Save/restore the signal actions of all signals, and the signal
+   mask.
+
+   Since the exec family of functions does not reset the signal
+   disposition of signals set to SIG_IGN, nor does it reset the signal
+   mask, in order to be transparent, when spawning new child processes
+   to debug (with "run", etc.), we must reset signal actions and mask
+   back to what was originally inherited from gdb/gdbserver's parent,
+   just before execing the target program to debug.  */
+
+/* Save the signal state of all signals.  If !QUIET, warn if we detect
+   a custom signal handler preinstalled.  */
+
+extern void save_original_signals_state (bool quiet);
+
+/* Restore the signal state of all signals.  */
+
+extern void restore_original_signals_state (void);
+
+#endif /* COMMON_SIGNALS_STATE_SAVE_RESTORE_H */