pub_core_syswrap.h revision 663860b1408516d02ebfcb3a9999a134e6cfb223
1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- System call wrappers, etc. pub_core_syswrap.h ---*/ 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This file is part of Valgrind, a dynamic binary instrumentation 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown framework. 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 10663860b1408516d02ebfcb3a9999a134e6cfb223Ben Cheng Copyright (C) 2000-2012 Julian Seward 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown jseward@acm.org 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is free software; you can redistribute it and/or 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown modify it under the terms of the GNU General Public License as 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown published by the Free Software Foundation; either version 2 of the 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown License, or (at your option) any later version. 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown This program is distributed in the hope that it will be useful, but 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown WITHOUT ANY WARRANTY; without even the implied warranty of 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown General Public License for more details. 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown You should have received a copy of the GNU General Public License 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown along with this program; if not, write to the Free Software 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 02111-1307, USA. 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown The GNU General Public License is contained in the file COPYING. 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown*/ 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef __PUB_CORE_SYSWRAP_H 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define __PUB_CORE_SYSWRAP_H 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown//-------------------------------------------------------------------- 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// PURPOSE: This module contains all the syscall junk: mostly PRE/POST 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// wrappers, but also the main syscall jacketing code. 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown//-------------------------------------------------------------------- 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Allocates a stack for the first thread, then runs it, 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// as if the thread had been set up by clone() 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(main_thread_wrapper_NORETURN)(ThreadId tid); 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(client_syscall) ( ThreadId tid, UInt trc ); 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(post_syscall) ( ThreadId tid ); 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 47ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Clear this module's private state for thread 'tid' */ 48ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(clear_syscallInfo) ( Int tid ); 49ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Fix up a thread's state when syscall is interrupted by a signal. 51ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(fixup_guest_state_after_syscall_interrupted)( 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ThreadId tid, 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Addr ip, 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown SysRes sysret, 55ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Bool restart 56ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown ); 57ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 58ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Wait until all other threads are dead 59ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(reap_threads)(ThreadId self); 60ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 61ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// Release resources held by this thread 62ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(cleanup_thread) ( ThreadArchState* ); 63ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 64ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* fd leakage calls. */ 65ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(init_preopened_fds) ( void ); 66ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void VG_(show_open_fds) ( void ); 67ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 68ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// When the final thread is done, where shall I call to shutdown the 69ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// system cleanly? Is set once at startup (in m_main) and never 70ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// changes after that. Is basically a pointer to the exit 71ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// continuation. This is all just a nasty hack to avoid calling 72ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// directly from m_syswrap to m_main at exit, since that would cause 73ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown// m_main to become part of a module cycle, which is silly. 74ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern void (* VG_(address_of_m_main_shutdown_actions_NORETURN) ) 75ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (ThreadId,VgSchedReturnCode); 76ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 77ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif // __PUB_CORE_SYSWRAP_H 78ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 79ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 80ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--- end ---*/ 81ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/*--------------------------------------------------------------------*/ 82ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 83