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()
44extern void VG_(main_thread_wrapper_NORETURN)(ThreadId tid);
45
46extern void VG_(client_syscall) ( ThreadId tid, UInt trc );
47
48extern void VG_(post_syscall)   ( ThreadId tid );
49
50/* Clear this module's private state for thread 'tid' */
51extern void VG_(clear_syscallInfo) ( Int tid );
52
53// Fix up a thread's state when syscall is interrupted by a signal.
54extern void VG_(fixup_guest_state_after_syscall_interrupted)(
55               ThreadId tid,
56               Addr     ip,
57               SysRes   sysret,
58               Bool     restart
59            );
60
61// Wait until all other threads are dead
62extern void VG_(reap_threads)(ThreadId self);
63
64// Release resources held by this thread
65extern void VG_(cleanup_thread) ( ThreadArchState* );
66
67/* fd leakage calls. */
68extern void VG_(init_preopened_fds) ( void );
69extern void VG_(show_open_fds) ( const HChar* when );
70
71// When the final thread is done, where shall I call to shutdown the
72// system cleanly?  Is set once at startup (in m_main) and never
73// changes after that.  Is basically a pointer to the exit
74// continuation.  This is all just a nasty hack to avoid calling
75// directly from m_syswrap to m_main at exit, since that would cause
76// m_main to become part of a module cycle, which is silly.
77extern void (* VG_(address_of_m_main_shutdown_actions_NORETURN) )
78            (ThreadId,VgSchedReturnCode);
79
80#endif   // __PUB_CORE_SYSWRAP_H
81
82/*--------------------------------------------------------------------*/
83/*--- end                                                          ---*/
84/*--------------------------------------------------------------------*/
85
86