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) 2000-2010 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//--------------------------------------------------------------------
35// PURPOSE: This module contains all the syscall junk:  mostly PRE/POST
36// wrappers, but also the main syscall jacketing code.
37//--------------------------------------------------------------------
38
39// Allocates a stack for the first thread, then runs it,
40// as if the thread had been set up by clone()
41extern void VG_(main_thread_wrapper_NORETURN)(ThreadId tid);
42
43extern void VG_(client_syscall) ( ThreadId tid, UInt trc );
44
45extern void VG_(post_syscall)   ( ThreadId tid );
46
47/* Clear this module's private state for thread 'tid' */
48extern void VG_(clear_syscallInfo) ( Int tid );
49
50// Fix up a thread's state when syscall is interrupted by a signal.
51extern void VG_(fixup_guest_state_after_syscall_interrupted)(
52               ThreadId tid,
53               Addr     ip,
54               SysRes   sysret,
55               Bool     restart
56            );
57
58// Wait until all other threads are dead
59extern void VG_(reap_threads)(ThreadId self);
60
61// Release resources held by this thread
62extern void VG_(cleanup_thread) ( ThreadArchState* );
63
64/* fd leakage calls. */
65extern void VG_(init_preopened_fds) ( void );
66extern void VG_(show_open_fds) ( void );
67
68// When the final thread is done, where shall I call to shutdown the
69// system cleanly?  Is set once at startup (in m_main) and never
70// changes after that.  Is basically a pointer to the exit
71// continuation.  This is all just a nasty hack to avoid calling
72// directly from m_syswrap to m_main at exit, since that would cause
73// m_main to become part of a module cycle, which is silly.
74extern void (* VG_(address_of_m_main_shutdown_actions_NORETURN) )
75            (ThreadId,VgSchedReturnCode);
76
77#endif   // __PUB_CORE_SYSWRAP_H
78
79/*--------------------------------------------------------------------*/
80/*--- end                                                          ---*/
81/*--------------------------------------------------------------------*/
82
83