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/*--------------------------------------------------------------------*/
/*--- System call wrappers, etc. pub_core_syswrap.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2015 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#ifndef __PUB_CORE_SYSWRAP_H
#define __PUB_CORE_SYSWRAP_H
#include "pub_core_basics.h" // VG_ macro
#include "pub_core_threadstate.h" // ThreadArchState
#include "pub_core_tooliface.h" // CorePart
//--------------------------------------------------------------------
// PURPOSE: This module contains all the syscall junk: mostly PRE/POST
// wrappers, but also the main syscall jacketing code.
//--------------------------------------------------------------------
// Allocates a stack for the first thread, then runs it,
// as if the thread had been set up by clone()
extern void VG_(main_thread_wrapper_NORETURN)(ThreadId tid);
extern void VG_(client_syscall) ( ThreadId tid, UInt trc );
extern void VG_(post_syscall) ( ThreadId tid );
/* Clear this module's private state for thread 'tid' */
extern void VG_(clear_syscallInfo) ( Int tid );
// Returns True if the given thread is currently in a system call
extern Bool VG_(is_in_syscall) ( Int tid );
// Fix up a thread's state when syscall is interrupted by a signal.
extern void VG_(fixup_guest_state_after_syscall_interrupted)(
ThreadId tid,
Addr ip,
SysRes sysret,
Bool restart,
struct vki_ucontext *uc
);
#if defined(VGO_solaris)
// Determine if in a blocking syscall.
extern Bool VG_(is_ip_in_blocking_syscall)(ThreadId tid, Addr ip);
#endif
// Wait until all other threads are dead
extern void VG_(reap_threads)(ThreadId self);
// Release resources held by this thread
extern void VG_(cleanup_thread) ( ThreadArchState* );
/* fd leakage calls. */
extern void VG_(init_preopened_fds) ( void );
extern void VG_(show_open_fds) ( const HChar* when );
// When the final thread is done, where shall I call to shutdown the
// system cleanly? Is set once at startup (in m_main) and never
// changes after that. Is basically a pointer to the exit
// continuation. This is all just a nasty hack to avoid calling
// directly from m_syswrap to m_main at exit, since that would cause
// m_main to become part of a module cycle, which is silly.
extern void (* VG_(address_of_m_main_shutdown_actions_NORETURN) )
(ThreadId,VgSchedReturnCode);
#if defined(VGO_solaris)
extern void VG_(save_context)(ThreadId tid, vki_ucontext_t *uc,
CorePart part);
extern void VG_(restore_context)(ThreadId tid, vki_ucontext_t *uc,
CorePart part, Bool esp_is_thrptr);
extern void VG_(syswrap_init)(void);
extern void VG_(change_mapping_ownership)(Addr addr, Bool once_only);
extern Bool VG_(setup_client_dataseg)(void);
extern void VG_(track_client_dataseg)(ThreadId tid);
#endif
#endif // __PUB_CORE_SYSWRAP_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
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