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      1 /* Copyright (C) 2016-2024 Free Software Foundation, Inc.
      2 
      3    This file is part of GDB.
      4 
      5    This program is free software; you can redistribute it and/or modify
      6    it under the terms of the GNU General Public License as published by
      7    the Free Software Foundation; either version 3 of the License, or
      8    (at your option) any later version.
      9 
     10    This program is distributed in the hope that it will be useful,
     11    but WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13    GNU General Public License for more details.
     14 
     15    You should have received a copy of the GNU General Public License
     16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
     17 
     18 #ifndef GDBSUPPORT_SIGNALS_STATE_SAVE_RESTORE_H
     19 #define GDBSUPPORT_SIGNALS_STATE_SAVE_RESTORE_H
     20 
     21 /* Save/restore the signal actions of all signals, and the signal
     22    mask.
     23 
     24    Since the exec family of functions does not reset the signal
     25    disposition of signals set to SIG_IGN, nor does it reset the signal
     26    mask, in order to be transparent, when spawning new child processes
     27    to debug (with "run", etc.), we must reset signal actions and mask
     28    back to what was originally inherited from gdb/gdbserver's parent,
     29    just before execing the target program to debug.  */
     30 
     31 /* Save the signal state of all signals.  If !QUIET, warn if we detect
     32    a custom signal handler preinstalled.  */
     33 
     34 extern void save_original_signals_state (bool quiet);
     35 
     36 /* Restore the signal state of all signals.  */
     37 
     38 extern void restore_original_signals_state (void);
     39 
     40 #endif /* GDBSUPPORT_SIGNALS_STATE_SAVE_RESTORE_H */
     41