2 /*--------------------------------------------------------------------*/
3 /*--- System call wrappers, etc. pub_core_syswrap.h ---*/
4 /*--------------------------------------------------------------------*/
7 This file is part of Valgrind, a dynamic binary instrumentation
10 Copyright (C) 2000-2017 Julian Seward
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.
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.
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
28 The GNU General Public License is contained in the file COPYING.
31 #ifndef __PUB_CORE_SYSWRAP_H
32 #define __PUB_CORE_SYSWRAP_H
34 #include "pub_core_basics.h" // VG_ macro
35 #include "pub_core_threadstate.h" // ThreadArchState
36 #include "pub_core_tooliface.h" // CorePart
38 //--------------------------------------------------------------------
39 // PURPOSE: This module contains all the syscall junk: mostly PRE/POST
40 // wrappers, but also the main syscall jacketing code.
41 //--------------------------------------------------------------------
43 // Allocates a stack for the first thread, then runs it,
44 // as if the thread had been set up by clone()
45 extern void VG_(main_thread_wrapper_NORETURN
)(ThreadId tid
);
47 extern void VG_(client_syscall
) ( ThreadId tid
, UInt trc
);
49 extern void VG_(post_syscall
) ( ThreadId tid
);
51 /* Clear this module's private state for thread 'tid' */
52 extern void VG_(clear_syscallInfo
) ( Int tid
);
54 // Returns True if the given thread is currently in a system call
55 extern Bool
VG_(is_in_syscall
) ( Int tid
);
57 // Fix up a thread's state when syscall is interrupted by a signal.
58 extern void VG_(fixup_guest_state_after_syscall_interrupted
)(
63 struct vki_ucontext
*uc
66 #if defined(VGO_solaris)
67 // Determine if in a blocking syscall.
68 extern Bool
VG_(is_ip_in_blocking_syscall
)(ThreadId tid
, Addr ip
);
71 // Wait until all other threads are dead
72 extern void VG_(reap_threads
)(ThreadId self
);
74 // Release resources held by this thread
75 extern void VG_(cleanup_thread
) ( ThreadArchState
* );
77 /* fd leakage calls. */
78 extern void VG_(init_preopened_fds
) ( void );
79 extern void VG_(show_open_fds
) ( const HChar
* when
);
81 // When the final thread is done, where shall I call to shutdown the
82 // system cleanly? Is set once at startup (in m_main) and never
83 // changes after that. Is basically a pointer to the exit
84 // continuation. This is all just a nasty hack to avoid calling
85 // directly from m_syswrap to m_main at exit, since that would cause
86 // m_main to become part of a module cycle, which is silly.
87 extern void (* VG_(address_of_m_main_shutdown_actions_NORETURN
) )
88 (ThreadId
,VgSchedReturnCode
);
90 #if defined(VGO_solaris)
91 extern void VG_(save_context
)(ThreadId tid
, vki_ucontext_t
*uc
,
93 extern void VG_(restore_context
)(ThreadId tid
, vki_ucontext_t
*uc
,
94 CorePart part
, Bool esp_is_thrptr
);
95 extern void VG_(syswrap_init
)(void);
96 extern void VG_(change_mapping_ownership
)(Addr addr
, Bool once_only
);
97 extern Bool
VG_(setup_client_dataseg
)(void);
98 extern void VG_(track_client_dataseg
)(ThreadId tid
);
101 #endif // __PUB_CORE_SYSWRAP_H
103 /*--------------------------------------------------------------------*/
105 /*--------------------------------------------------------------------*/