include/pub_tool_signals.h

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- Signals stuff.                            pub_tool_signals.h ---*/
   4 /*--------------------------------------------------------------------*/
   5
   6 /*
   7    This file is part of Valgrind, a dynamic binary instrumentation
   8    framework.
   9
  10    Copyright (C) 2000-2017 Julian Seward
  11       jseward@acm.org
  12
  13    This program is free software; you can redistribute it and/or
  14    modify it under the terms of the GNU General Public License as
  15    published by the Free Software Foundation; either version 2 of the
  16    License, or (at your option) any later version.
  17
  18    This program is distributed in the hope that it will be useful, but
  19    WITHOUT ANY WARRANTY; without even the implied warranty of
  20    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  21    General Public License for more details.
  22
  23    You should have received a copy of the GNU General Public License
  24    along with this program; if not, see <http://www.gnu.org/licenses/>.
  25
  26    The GNU General Public License is contained in the file COPYING.
  27 */
  28
  29 #ifndef __PUB_TOOL_SIGNALS_H
  30 #define __PUB_TOOL_SIGNALS_H
  31
  32 #include "pub_tool_basics.h"   // Addr
  33 #include "pub_tool_hashtable.h" // VgHashTable
  34
  35 // Register an interest in apparently internal faults; used code which
  36 // wanders around dangerous memory (ie, leakcheck).  The catcher is
  37 // not expected to return.
  38 // Returns the previously set fault_catcher (NULL if there was no fault
  39 // catcher set)
  40 //
  41 // It's frustrating that we need this header for a single function used
  42 // only by Memcheck during leak checking.  We should find a way to remove
  43 // the need for this file.
  44 typedef void (*fault_catcher_t)(Int sig, Addr addr);
  45 extern fault_catcher_t VG_(set_fault_catcher)(fault_catcher_t catcher);
  46
  47 /* Hash table of PIDs from which SIGCHLD is ignored.  */
  48 extern VgHashTable *ht_sigchld_ignore;
  49
  50 /* Hash table node where each key represents a PID.  */
  51 typedef struct _ht_ignore_node {
  52    struct _ht_ignore_node *next;
  53    UWord   key;
  54 } ht_ignore_node;
  55
  56 #endif   // __PUB_TOOL_SIGNALS_H
  57
  58 /*--------------------------------------------------------------------*/
  59 /*--- end                                                          ---*/
  60 /*--------------------------------------------------------------------*/