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) 2000-2017 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#include "pub_core_tooliface.h" // CorePart 37 38//-------------------------------------------------------------------- 39// PURPOSE: This module contains all the syscall junk: mostly PRE/POST 40// wrappers, but also the main syscall jacketing code. 41//-------------------------------------------------------------------- 42 43// Allocates a stack for the first thread, then runs it, 44// as if the thread had been set up by clone() 45extern void VG_(main_thread_wrapper_NORETURN)(ThreadId tid); 46 47extern void VG_(client_syscall) ( ThreadId tid, UInt trc ); 48 49extern void VG_(post_syscall) ( ThreadId tid ); 50 51/* Clear this module's private state for thread 'tid' */ 52extern void VG_(clear_syscallInfo) ( Int tid ); 53 54// Returns True if the given thread is currently in a system call 55extern Bool VG_(is_in_syscall) ( Int tid ); 56 57// Fix up a thread's state when syscall is interrupted by a signal. 58extern void VG_(fixup_guest_state_after_syscall_interrupted)( 59 ThreadId tid, 60 Addr ip, 61 SysRes sysret, 62 Bool restart, 63 struct vki_ucontext *uc 64 ); 65 66#if defined(VGO_solaris) 67// Determine if in a blocking syscall. 68extern Bool VG_(is_ip_in_blocking_syscall)(ThreadId tid, Addr ip); 69#endif 70 71// Wait until all other threads are dead 72extern void VG_(reap_threads)(ThreadId self); 73 74// Release resources held by this thread 75extern void VG_(cleanup_thread) ( ThreadArchState* ); 76 77/* fd leakage calls. */ 78extern void VG_(init_preopened_fds) ( void ); 79extern void VG_(show_open_fds) ( const HChar* when ); 80 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. 87extern void (* VG_(address_of_m_main_shutdown_actions_NORETURN) ) 88 (ThreadId,VgSchedReturnCode); 89 90#if defined(VGO_solaris) 91extern void VG_(save_context)(ThreadId tid, vki_ucontext_t *uc, 92 CorePart part); 93extern void VG_(restore_context)(ThreadId tid, vki_ucontext_t *uc, 94 CorePart part, Bool esp_is_thrptr); 95extern void VG_(syswrap_init)(void); 96extern void VG_(change_mapping_ownership)(Addr addr, Bool once_only); 97extern Bool VG_(setup_client_dataseg)(void); 98extern void VG_(track_client_dataseg)(ThreadId tid); 99#endif 100 101#endif // __PUB_CORE_SYSWRAP_H 102 103/*--------------------------------------------------------------------*/ 104/*--- end ---*/ 105/*--------------------------------------------------------------------*/ 106 107