coregrind/pub_core_syswrap.h

   1
   2 /*--------------------------------------------------------------------*/
   3 /*--- System call wrappers, etc.                pub_core_syswrap.h ---*/
   4 /*--------------------------------------------------------------------*/
   5
   6 /*
   7    This file is part of Valgrind, a dynamic binary instrumentation
   8    framework.
   9
  10    Copyright (C) 2000-2013 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, write to the Free Software
  25    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  26    02111-1307, USA.
  27
  28    The GNU General Public License is contained in the file COPYING.
  29 */
  30
  31 #ifndef __PUB_CORE_SYSWRAP_H
  32 #define __PUB_CORE_SYSWRAP_H
  33
  34 #include "pub_core_basics.h"        // VG_ macro
  35 #include "pub_core_threadstate.h"   // ThreadArchState
  36
  37 //--------------------------------------------------------------------
  38 // PURPOSE: This module contains all the syscall junk:  mostly PRE/POST
  39 // wrappers, but also the main syscall jacketing code.
  40 //--------------------------------------------------------------------
  41
  42 // Allocates a stack for the first thread, then runs it,
  43 // as if the thread had been set up by clone()
  44 extern void VG_(main_thread_wrapper_NORETURN)(ThreadId tid);
  45
  46 extern void VG_(client_syscall) ( ThreadId tid, UInt trc );
  47
  48 extern void VG_(post_syscall)   ( ThreadId tid );
  49
  50 /* Clear this module's private state for thread 'tid' */
  51 extern void VG_(clear_syscallInfo) ( Int tid );
  52
  53 // Returns True if the given thread is currently in a system call
  54 extern Bool VG_(is_in_syscall) ( Int tid );
  55
  56 // Fix up a thread's state when syscall is interrupted by a signal.
  57 extern void VG_(fixup_guest_state_after_syscall_interrupted)(
  58                ThreadId tid,
  59                Addr     ip,
  60                SysRes   sysret,
  61                Bool     restart
  62             );
  63
  64 // Wait until all other threads are dead
  65 extern void VG_(reap_threads)(ThreadId self);
  66
  67 // Release resources held by this thread
  68 extern void VG_(cleanup_thread) ( ThreadArchState* );
  69
  70 /* fd leakage calls. */
  71 extern void VG_(init_preopened_fds) ( void );
  72 extern void VG_(show_open_fds) ( const HChar* when );
  73
  74 // When the final thread is done, where shall I call to shutdown the
  75 // system cleanly?  Is set once at startup (in m_main) and never
  76 // changes after that.  Is basically a pointer to the exit
  77 // continuation.  This is all just a nasty hack to avoid calling
  78 // directly from m_syswrap to m_main at exit, since that would cause
  79 // m_main to become part of a module cycle, which is silly.
  80 extern void (* VG_(address_of_m_main_shutdown_actions_NORETURN) )
  81             (ThreadId,VgSchedReturnCode);
  82
  83 #endif   // __PUB_CORE_SYSWRAP_H
  84
  85 /*--------------------------------------------------------------------*/
  86 /*--- end                                                          ---*/
  87 /*--------------------------------------------------------------------*/
  88