/* * NT threads support * * Copyright 1996, 2003 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include #include #include #ifdef HAVE_SYS_MMAN_H #include #endif #ifdef HAVE_SYS_TIMES_H #include #endif #define NONAMELESSUNION #include "ntstatus.h" #define WIN32_NO_STATUS #include "winternl.h" #include "wine/library.h" #include "wine/server.h" #include "wine/debug.h" #include "ntdll_misc.h" #include "ddk/wdm.h" #include "wine/exception.h" WINE_DEFAULT_DEBUG_CHANNEL(thread); WINE_DECLARE_DEBUG_CHANNEL(relay); struct _KUSER_SHARED_DATA *user_shared_data = NULL; PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter = NULL; /* info passed to a starting thread */ struct startup_info { TEB *teb; PRTL_THREAD_START_ROUTINE entry_point; void *entry_arg; }; static PEB_LDR_DATA ldr; static RTL_USER_PROCESS_PARAMETERS params; /* default parameters if no parent */ static WCHAR current_dir[MAX_NT_PATH_LENGTH]; static RTL_BITMAP tls_bitmap; static RTL_BITMAP tls_expansion_bitmap; static RTL_BITMAP fls_bitmap; static LIST_ENTRY tls_links; static size_t sigstack_total_size; static ULONG sigstack_zero_bits; static int nb_threads = 1; static RTL_CRITICAL_SECTION ldt_section; static RTL_CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &ldt_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { (DWORD_PTR)(__FILE__ ": ldt_section") } }; static RTL_CRITICAL_SECTION ldt_section = { &critsect_debug, -1, 0, 0, 0, 0 }; static sigset_t ldt_sigset; /*********************************************************************** * locking for LDT routines */ static void ldt_lock(void) { sigset_t sigset; pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset ); RtlEnterCriticalSection( &ldt_section ); if (ldt_section.RecursionCount == 1) ldt_sigset = sigset; } static void ldt_unlock(void) { if (ldt_section.RecursionCount == 1) { sigset_t sigset = ldt_sigset; RtlLeaveCriticalSection( &ldt_section ); pthread_sigmask( SIG_SETMASK, &sigset, NULL ); } else RtlLeaveCriticalSection( &ldt_section ); } /*********************************************************************** * init_teb */ static inline NTSTATUS init_teb( TEB *teb ) { struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; teb->Tib.ExceptionList = (void *)~0UL; teb->Tib.StackBase = (void *)~0UL; teb->Tib.Self = &teb->Tib; teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer; teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer); if (!(thread_data->fs = wine_ldt_alloc_fs())) return STATUS_TOO_MANY_THREADS; thread_data->request_fd = -1; thread_data->reply_fd = -1; thread_data->wait_fd[0] = -1; thread_data->wait_fd[1] = -1; return STATUS_SUCCESS; } /*********************************************************************** * fix_unicode_string * * Make sure the unicode string doesn't point beyond the end pointer */ static inline void fix_unicode_string( UNICODE_STRING *str, const char *end_ptr ) { if ((char *)str->Buffer >= end_ptr) { str->Length = str->MaximumLength = 0; str->Buffer = NULL; return; } if ((char *)str->Buffer + str->MaximumLength > end_ptr) { str->MaximumLength = (end_ptr - (char *)str->Buffer) & ~(sizeof(WCHAR) - 1); } if (str->Length >= str->MaximumLength) { if (str->MaximumLength >= sizeof(WCHAR)) str->Length = str->MaximumLength - sizeof(WCHAR); else str->Length = str->MaximumLength = 0; } } /*********************************************************************** * init_user_process_params * * Fill the RTL_USER_PROCESS_PARAMETERS structure from the server. */ static NTSTATUS init_user_process_params( SIZE_T info_size, HANDLE *exe_file ) { void *ptr; SIZE_T env_size; NTSTATUS status; RTL_USER_PROCESS_PARAMETERS *params = NULL; status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)¶ms, 0, &info_size, MEM_COMMIT, PAGE_READWRITE ); if (status != STATUS_SUCCESS) return status; params->AllocationSize = info_size; NtCurrentTeb()->Peb->ProcessParameters = params; SERVER_START_REQ( get_startup_info ) { wine_server_set_reply( req, params, info_size ); if (!(status = wine_server_call( req ))) { info_size = wine_server_reply_size( reply ); *exe_file = wine_server_ptr_handle( reply->exe_file ); params->hStdInput = wine_server_ptr_handle( reply->hstdin ); params->hStdOutput = wine_server_ptr_handle( reply->hstdout ); params->hStdError = wine_server_ptr_handle( reply->hstderr ); } } SERVER_END_REQ; if (status != STATUS_SUCCESS) return status; if (params->Size > info_size) params->Size = info_size; /* make sure the strings are valid */ fix_unicode_string( ¶ms->CurrentDirectory.DosPath, (char *)info_size ); fix_unicode_string( ¶ms->DllPath, (char *)info_size ); fix_unicode_string( ¶ms->ImagePathName, (char *)info_size ); fix_unicode_string( ¶ms->CommandLine, (char *)info_size ); fix_unicode_string( ¶ms->WindowTitle, (char *)info_size ); fix_unicode_string( ¶ms->Desktop, (char *)info_size ); fix_unicode_string( ¶ms->ShellInfo, (char *)info_size ); fix_unicode_string( ¶ms->RuntimeInfo, (char *)info_size ); /* environment needs to be a separate memory block */ env_size = info_size - params->Size; if (!env_size) env_size = 1; ptr = NULL; status = NtAllocateVirtualMemory( NtCurrentProcess(), &ptr, 0, &env_size, MEM_COMMIT, PAGE_READWRITE ); if (status != STATUS_SUCCESS) return status; memcpy( ptr, (char *)params + params->Size, info_size - params->Size ); params->Environment = ptr; RtlNormalizeProcessParams( params ); return status; } /*********************************************************************** * thread_init * * Setup the initial thread. * * NOTES: The first allocated TEB on NT is at 0x7ffde000. */ HANDLE thread_init(void) { PEB *peb; TEB *teb; void *addr; SIZE_T size, info_size; HANDLE exe_file = 0; LARGE_INTEGER now; struct ntdll_thread_data *thread_data; static struct debug_info debug_info; /* debug info for initial thread */ virtual_init(); /* reserve space for shared user data */ addr = (void *)0x7ffe0000; size = 0x10000; NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE|MEM_COMMIT, PAGE_READWRITE ); user_shared_data = addr; /* allocate and initialize the PEB */ addr = NULL; size = sizeof(*peb); NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 1, &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE ); peb = addr; peb->NumberOfProcessors = 1; peb->ProcessParameters = ¶ms; peb->TlsBitmap = &tls_bitmap; peb->TlsExpansionBitmap = &tls_expansion_bitmap; peb->FlsBitmap = &fls_bitmap; peb->LdrData = &ldr; params.CurrentDirectory.DosPath.Buffer = current_dir; params.CurrentDirectory.DosPath.MaximumLength = sizeof(current_dir); params.wShowWindow = 1; /* SW_SHOWNORMAL */ RtlInitializeBitMap( &tls_bitmap, peb->TlsBitmapBits, sizeof(peb->TlsBitmapBits) * 8 ); RtlInitializeBitMap( &tls_expansion_bitmap, peb->TlsExpansionBitmapBits, sizeof(peb->TlsExpansionBitmapBits) * 8 ); RtlInitializeBitMap( &fls_bitmap, peb->FlsBitmapBits, sizeof(peb->FlsBitmapBits) * 8 ); InitializeListHead( &peb->FlsListHead ); InitializeListHead( &ldr.InLoadOrderModuleList ); InitializeListHead( &ldr.InMemoryOrderModuleList ); InitializeListHead( &ldr.InInitializationOrderModuleList ); InitializeListHead( &tls_links ); /* allocate and initialize the initial TEB */ sigstack_total_size = get_signal_stack_total_size(); while (1U << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++; assert( 1U << sigstack_zero_bits == sigstack_total_size ); /* must be a power of 2 */ assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) ); addr = NULL; size = sigstack_total_size; NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits, &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE ); teb = addr; teb->Peb = peb; init_teb( teb ); thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; thread_data->debug_info = &debug_info; InsertHeadList( &tls_links, &teb->TlsLinks ); signal_init_thread( teb ); virtual_init_threading(); debug_info.str_pos = debug_info.strings; debug_info.out_pos = debug_info.output; debug_init(); /* setup the server connection */ server_init_process(); info_size = server_init_thread( peb ); /* create the process heap */ if (!(peb->ProcessHeap = RtlCreateHeap( HEAP_GROWABLE, NULL, 0, 0, NULL, NULL ))) { MESSAGE( "wine: failed to create the process heap\n" ); exit(1); } /* allocate user parameters */ if (info_size) { init_user_process_params( info_size, &exe_file ); } else { /* This is wine specific: we have no parent (we're started from unix) * so, create a simple console with bare handles to unix stdio */ wine_server_fd_to_handle( 0, GENERIC_READ|SYNCHRONIZE, OBJ_INHERIT, ¶ms.hStdInput ); wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, ¶ms.hStdOutput ); wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, ¶ms.hStdError ); } /* initialize LDT locking */ wine_ldt_init_locking( ldt_lock, ldt_unlock ); /* initialize time values in user_shared_data */ NtQuerySystemTime( &now ); user_shared_data->SystemTime.LowPart = now.u.LowPart; user_shared_data->SystemTime.High1Time = user_shared_data->SystemTime.High2Time = now.u.HighPart; user_shared_data->u.TickCountQuad = (now.QuadPart - server_start_time) / 10000; user_shared_data->u.TickCount.High2Time = user_shared_data->u.TickCount.High1Time; user_shared_data->TickCountLowDeprecated = user_shared_data->u.TickCount.LowPart; user_shared_data->TickCountMultiplier = 1 << 24; return exe_file; } /*********************************************************************** * abort_thread */ void abort_thread( int status ) { pthread_sigmask( SIG_BLOCK, &server_block_set, NULL ); if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) _exit( status ); close( ntdll_get_thread_data()->wait_fd[0] ); close( ntdll_get_thread_data()->wait_fd[1] ); close( ntdll_get_thread_data()->reply_fd ); close( ntdll_get_thread_data()->request_fd ); pthread_exit( UIntToPtr(status) ); } /*********************************************************************** * exit_thread */ void exit_thread( int status ) { static void *prev_teb; TEB *teb; if (status) /* send the exit code to the server (0 is already the default) */ { SERVER_START_REQ( terminate_thread ) { req->handle = wine_server_obj_handle( GetCurrentThread() ); req->exit_code = status; wine_server_call( req ); } SERVER_END_REQ; } if (interlocked_xchg_add( &nb_threads, -1 ) <= 1) { LdrShutdownProcess(); exit( status ); } LdrShutdownThread(); RtlAcquirePebLock(); RemoveEntryList( &NtCurrentTeb()->TlsLinks ); RtlReleasePebLock(); RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->FlsSlots ); RtlFreeHeap( GetProcessHeap(), 0, NtCurrentTeb()->TlsExpansionSlots ); pthread_sigmask( SIG_BLOCK, &server_block_set, NULL ); if ((teb = interlocked_xchg_ptr( &prev_teb, NtCurrentTeb() ))) { struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; SIZE_T size; pthread_join( thread_data->pthread_id, NULL ); wine_ldt_free_fs( thread_data->fs ); size = 0; NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE ); size = 0; NtFreeVirtualMemory( GetCurrentProcess(), (void **)&teb, &size, MEM_RELEASE ); } close( ntdll_get_thread_data()->wait_fd[0] ); close( ntdll_get_thread_data()->wait_fd[1] ); close( ntdll_get_thread_data()->reply_fd ); close( ntdll_get_thread_data()->request_fd ); pthread_exit( UIntToPtr(status) ); } /*********************************************************************** * start_thread * * Startup routine for a newly created thread. */ static void start_thread( struct startup_info *info ) { TEB *teb = info->teb; struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; PRTL_THREAD_START_ROUTINE func = info->entry_point; void *arg = info->entry_arg; struct debug_info debug_info; debug_info.str_pos = debug_info.strings; debug_info.out_pos = debug_info.output; thread_data->debug_info = &debug_info; thread_data->pthread_id = pthread_self(); signal_init_thread( teb ); server_init_thread( func ); pthread_sigmask( SIG_UNBLOCK, &server_block_set, NULL ); RtlAcquirePebLock(); InsertHeadList( &tls_links, &teb->TlsLinks ); RtlReleasePebLock(); MODULE_DllThreadAttach( NULL ); if (TRACE_ON(relay)) DPRINTF( "%04x:Starting thread proc %p (arg=%p)\n", GetCurrentThreadId(), func, arg ); call_thread_entry_point( (LPTHREAD_START_ROUTINE)func, arg ); } /*********************************************************************** * RtlCreateUserThread (NTDLL.@) */ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *descr, BOOLEAN suspended, PVOID stack_addr, SIZE_T stack_reserve, SIZE_T stack_commit, PRTL_THREAD_START_ROUTINE start, void *param, HANDLE *handle_ptr, CLIENT_ID *id ) { sigset_t sigset; pthread_t pthread_id; pthread_attr_t attr; struct ntdll_thread_data *thread_data = NULL; struct ntdll_thread_regs *thread_regs; struct startup_info *info = NULL; void *addr = NULL; HANDLE handle = 0; TEB *teb; DWORD tid = 0; int request_pipe[2]; NTSTATUS status; SIZE_T size; if (process != NtCurrentProcess()) { apc_call_t call; apc_result_t result; memset( &call, 0, sizeof(call) ); call.create_thread.type = APC_CREATE_THREAD; call.create_thread.func = wine_server_client_ptr( start ); call.create_thread.arg = wine_server_client_ptr( param ); call.create_thread.reserve = stack_reserve; call.create_thread.commit = stack_commit; call.create_thread.suspend = suspended; status = NTDLL_queue_process_apc( process, &call, &result ); if (status != STATUS_SUCCESS) return status; if (result.create_thread.status == STATUS_SUCCESS) { if (id) id->UniqueThread = ULongToHandle(result.create_thread.tid); if (handle_ptr) *handle_ptr = wine_server_ptr_handle( result.create_thread.handle ); else NtClose( wine_server_ptr_handle( result.create_thread.handle )); } return result.create_thread.status; } if (server_pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES; wine_server_send_fd( request_pipe[0] ); SERVER_START_REQ( new_thread ) { req->access = THREAD_ALL_ACCESS; req->attributes = 0; /* FIXME */ req->suspend = suspended; req->request_fd = request_pipe[0]; if (!(status = wine_server_call( req ))) { handle = wine_server_ptr_handle( reply->handle ); tid = reply->tid; } close( request_pipe[0] ); } SERVER_END_REQ; if (status) { close( request_pipe[1] ); return status; } pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset ); addr = NULL; size = sigstack_total_size; if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits, &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE ))) goto error; teb = addr; teb->Peb = NtCurrentTeb()->Peb; info = (struct startup_info *)(teb + 1); info->teb = teb; info->entry_point = start; info->entry_arg = param; if ((status = init_teb( teb ))) goto error; teb->ClientId.UniqueProcess = ULongToHandle(GetCurrentProcessId()); teb->ClientId.UniqueThread = ULongToHandle(tid); thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1; thread_data->request_fd = request_pipe[1]; /* inherit debug registers from parent thread */ thread_regs->dr0 = ntdll_get_thread_regs()->dr0; thread_regs->dr1 = ntdll_get_thread_regs()->dr1; thread_regs->dr2 = ntdll_get_thread_regs()->dr2; thread_regs->dr3 = ntdll_get_thread_regs()->dr3; thread_regs->dr6 = ntdll_get_thread_regs()->dr6; thread_regs->dr7 = ntdll_get_thread_regs()->dr7; if ((status = virtual_alloc_thread_stack( teb, stack_reserve, stack_commit ))) goto error; pthread_attr_init( &attr ); pthread_attr_setstack( &attr, teb->DeallocationStack, (char *)teb->Tib.StackBase - (char *)teb->DeallocationStack ); pthread_attr_setscope( &attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */ interlocked_xchg_add( &nb_threads, 1 ); if (pthread_create( &pthread_id, &attr, (void * (*)(void *))start_thread, info )) { interlocked_xchg_add( &nb_threads, -1 ); pthread_attr_destroy( &attr ); size = 0; NtFreeVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE ); status = STATUS_NO_MEMORY; goto error; } pthread_attr_destroy( &attr ); pthread_sigmask( SIG_SETMASK, &sigset, NULL ); if (id) id->UniqueThread = ULongToHandle(tid); if (handle_ptr) *handle_ptr = handle; else NtClose( handle ); return STATUS_SUCCESS; error: if (thread_data) wine_ldt_free_fs( thread_data->fs ); if (addr) { size = 0; NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE ); } if (handle) NtClose( handle ); pthread_sigmask( SIG_SETMASK, &sigset, NULL ); close( request_pipe[1] ); return status; } /*********************************************************************** * NtOpenThread (NTDLL.@) * ZwOpenThread (NTDLL.@) */ NTSTATUS WINAPI NtOpenThread( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr, const CLIENT_ID *id ) { NTSTATUS ret; SERVER_START_REQ( open_thread ) { req->tid = HandleToULong(id->UniqueThread); req->access = access; req->attributes = attr ? attr->Attributes : 0; ret = wine_server_call( req ); *handle = wine_server_ptr_handle( reply->handle ); } SERVER_END_REQ; return ret; } /****************************************************************************** * NtSuspendThread (NTDLL.@) * ZwSuspendThread (NTDLL.@) */ NTSTATUS WINAPI NtSuspendThread( HANDLE handle, PULONG count ) { NTSTATUS ret; SERVER_START_REQ( suspend_thread ) { req->handle = wine_server_obj_handle( handle ); if (!(ret = wine_server_call( req ))) *count = reply->count; } SERVER_END_REQ; return ret; } /****************************************************************************** * NtResumeThread (NTDLL.@) * ZwResumeThread (NTDLL.@) */ NTSTATUS WINAPI NtResumeThread( HANDLE handle, PULONG count ) { NTSTATUS ret; SERVER_START_REQ( resume_thread ) { req->handle = wine_server_obj_handle( handle ); if (!(ret = wine_server_call( req ))) *count = reply->count; } SERVER_END_REQ; return ret; } /****************************************************************************** * NtAlertResumeThread (NTDLL.@) * ZwAlertResumeThread (NTDLL.@) */ NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, PULONG count ) { FIXME( "stub: should alert thread %p\n", handle ); return NtResumeThread( handle, count ); } /****************************************************************************** * NtAlertThread (NTDLL.@) * ZwAlertThread (NTDLL.@) */ NTSTATUS WINAPI NtAlertThread( HANDLE handle ) { FIXME( "stub: %p\n", handle ); return STATUS_NOT_IMPLEMENTED; } /****************************************************************************** * NtTerminateThread (NTDLL.@) * ZwTerminateThread (NTDLL.@) */ NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code ) { NTSTATUS ret; BOOL self, last; SERVER_START_REQ( terminate_thread ) { req->handle = wine_server_obj_handle( handle ); req->exit_code = exit_code; ret = wine_server_call( req ); self = !ret && reply->self; last = reply->last; } SERVER_END_REQ; if (self) { if (last) _exit( exit_code ); else abort_thread( exit_code ); } return ret; } /****************************************************************************** * NtQueueApcThread (NTDLL.@) */ NTSTATUS WINAPI NtQueueApcThread( HANDLE handle, PNTAPCFUNC func, ULONG_PTR arg1, ULONG_PTR arg2, ULONG_PTR arg3 ) { NTSTATUS ret; SERVER_START_REQ( queue_apc ) { req->handle = wine_server_obj_handle( handle ); if (func) { req->call.type = APC_USER; req->call.user.func = wine_server_client_ptr( func ); req->call.user.args[0] = arg1; req->call.user.args[1] = arg2; req->call.user.args[2] = arg3; } else req->call.type = APC_NONE; /* wake up only */ ret = wine_server_call( req ); } SERVER_END_REQ; return ret; } /*********************************************************************** * NtSetContextThread (NTDLL.@) * ZwSetContextThread (NTDLL.@) */ NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context ) { NTSTATUS ret; DWORD dummy, i; BOOL self = FALSE; #ifdef __i386__ /* on i386 debug registers always require a server call */ self = (handle == GetCurrentThread()); if (self && (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386))) { struct ntdll_thread_regs * const regs = ntdll_get_thread_regs(); self = (regs->dr0 == context->Dr0 && regs->dr1 == context->Dr1 && regs->dr2 == context->Dr2 && regs->dr3 == context->Dr3 && regs->dr6 == context->Dr6 && regs->dr7 == context->Dr7); } #endif if (!self) { context_t server_context; context_to_server( &server_context, context ); SERVER_START_REQ( set_thread_context ) { req->handle = wine_server_obj_handle( handle ); req->suspend = 0; wine_server_add_data( req, &server_context, sizeof(server_context) ); ret = wine_server_call( req ); self = reply->self; } SERVER_END_REQ; if (ret == STATUS_PENDING) { if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS) { for (i = 0; i < 100; i++) { SERVER_START_REQ( set_thread_context ) { req->handle = wine_server_obj_handle( handle ); req->suspend = 0; wine_server_add_data( req, &server_context, sizeof(server_context) ); ret = wine_server_call( req ); } SERVER_END_REQ; if (ret == STATUS_PENDING) { LARGE_INTEGER timeout; timeout.QuadPart = -10000; NtDelayExecution( FALSE, &timeout ); } else break; } NtResumeThread( handle, &dummy ); } if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED; } if (ret) return ret; } if (self) set_cpu_context( context ); return STATUS_SUCCESS; } /* convert CPU-specific flags to generic server flags */ static inline unsigned int get_server_context_flags( DWORD flags ) { unsigned int ret = 0; flags &= ~0x3f; /* mask CPU id flags */ if (flags & CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL; if (flags & CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER; #ifdef CONTEXT_SEGMENTS if (flags & CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS; #endif #ifdef CONTEXT_FLOATING_POINT if (flags & CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT; #endif #ifdef CONTEXT_DEBUG_REGISTERS if (flags & CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS; #endif #ifdef CONTEXT_EXTENDED_REGISTERS if (flags & CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS; #endif return ret; } /*********************************************************************** * NtGetContextThread (NTDLL.@) * ZwGetContextThread (NTDLL.@) */ NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context ) { NTSTATUS ret; DWORD dummy, i; DWORD needed_flags = context->ContextFlags; BOOL self = (handle == GetCurrentThread()); #ifdef __i386__ /* on i386 debug registers always require a server call */ if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) self = FALSE; #endif if (!self) { unsigned int server_flags = get_server_context_flags( context->ContextFlags ); context_t server_context; SERVER_START_REQ( get_thread_context ) { req->handle = wine_server_obj_handle( handle ); req->flags = server_flags; req->suspend = 0; wine_server_set_reply( req, &server_context, sizeof(server_context) ); ret = wine_server_call( req ); self = reply->self; } SERVER_END_REQ; if (ret == STATUS_PENDING) { if (NtSuspendThread( handle, &dummy ) == STATUS_SUCCESS) { for (i = 0; i < 100; i++) { SERVER_START_REQ( get_thread_context ) { req->handle = wine_server_obj_handle( handle ); req->flags = server_flags; req->suspend = 0; wine_server_set_reply( req, &server_context, sizeof(server_context) ); ret = wine_server_call( req ); } SERVER_END_REQ; if (ret == STATUS_PENDING) { LARGE_INTEGER timeout; timeout.QuadPart = -10000; NtDelayExecution( FALSE, &timeout ); } else break; } NtResumeThread( handle, &dummy ); } if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED; } if (!ret) ret = context_from_server( context, &server_context ); if (ret) return ret; needed_flags &= ~context->ContextFlags; } if (self) { if (needed_flags) { CONTEXT ctx; RtlCaptureContext( &ctx ); copy_context( context, &ctx, ctx.ContextFlags & needed_flags ); context->ContextFlags |= ctx.ContextFlags & needed_flags; } #ifdef __i386__ /* update the cached version of the debug registers */ if (context->ContextFlags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_i386)) { struct ntdll_thread_regs * const regs = ntdll_get_thread_regs(); regs->dr0 = context->Dr0; regs->dr1 = context->Dr1; regs->dr2 = context->Dr2; regs->dr3 = context->Dr3; regs->dr6 = context->Dr6; regs->dr7 = context->Dr7; } #endif } return STATUS_SUCCESS; } /****************************************************************************** * NtQueryInformationThread (NTDLL.@) * ZwQueryInformationThread (NTDLL.@) */ NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class, void *data, ULONG length, ULONG *ret_len ) { NTSTATUS status; switch(class) { case ThreadBasicInformation: { THREAD_BASIC_INFORMATION info; const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1; SERVER_START_REQ( get_thread_info ) { req->handle = wine_server_obj_handle( handle ); req->tid_in = 0; if (!(status = wine_server_call( req ))) { info.ExitStatus = reply->exit_code; info.TebBaseAddress = wine_server_get_ptr( reply->teb ); info.ClientId.UniqueProcess = ULongToHandle(reply->pid); info.ClientId.UniqueThread = ULongToHandle(reply->tid); info.AffinityMask = reply->affinity & affinity_mask; info.Priority = reply->priority; info.BasePriority = reply->priority; /* FIXME */ } } SERVER_END_REQ; if (status == STATUS_SUCCESS) { if (data) memcpy( data, &info, min( length, sizeof(info) )); if (ret_len) *ret_len = min( length, sizeof(info) ); } } return status; case ThreadAffinityMask: { const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1; ULONG_PTR affinity = 0; SERVER_START_REQ( get_thread_info ) { req->handle = wine_server_obj_handle( handle ); req->tid_in = 0; if (!(status = wine_server_call( req ))) affinity = reply->affinity & affinity_mask; } SERVER_END_REQ; if (status == STATUS_SUCCESS) { if (data) memcpy( data, &affinity, min( length, sizeof(affinity) )); if (ret_len) *ret_len = min( length, sizeof(affinity) ); } } return status; case ThreadTimes: { KERNEL_USER_TIMES kusrt; /* We need to do a server call to get the creation time or exit time */ /* This works on any thread */ SERVER_START_REQ( get_thread_info ) { req->handle = wine_server_obj_handle( handle ); req->tid_in = 0; status = wine_server_call( req ); if (status == STATUS_SUCCESS) { kusrt.CreateTime.QuadPart = reply->creation_time; kusrt.ExitTime.QuadPart = reply->exit_time; } } SERVER_END_REQ; if (status == STATUS_SUCCESS) { /* We call times(2) for kernel time or user time */ /* We can only (portably) do this for the current thread */ if (handle == GetCurrentThread()) { struct tms time_buf; long clocks_per_sec = sysconf(_SC_CLK_TCK); times(&time_buf); kusrt.KernelTime.QuadPart = (ULONGLONG)time_buf.tms_stime * 10000000 / clocks_per_sec; kusrt.UserTime.QuadPart = (ULONGLONG)time_buf.tms_utime * 10000000 / clocks_per_sec; } else { static BOOL reported = FALSE; kusrt.KernelTime.QuadPart = 0; kusrt.UserTime.QuadPart = 0; if (reported) TRACE("Cannot get kerneltime or usertime of other threads\n"); else { FIXME("Cannot get kerneltime or usertime of other threads\n"); reported = TRUE; } } if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) )); if (ret_len) *ret_len = min( length, sizeof(kusrt) ); } } return status; case ThreadDescriptorTableEntry: { #ifdef __i386__ THREAD_DESCRIPTOR_INFORMATION* tdi = data; if (length < sizeof(*tdi)) status = STATUS_INFO_LENGTH_MISMATCH; else if (!(tdi->Selector & 4)) /* GDT selector */ { unsigned sel = tdi->Selector & ~3; /* ignore RPL */ status = STATUS_SUCCESS; if (!sel) /* null selector */ memset( &tdi->Entry, 0, sizeof(tdi->Entry) ); else { tdi->Entry.BaseLow = 0; tdi->Entry.HighWord.Bits.BaseMid = 0; tdi->Entry.HighWord.Bits.BaseHi = 0; tdi->Entry.LimitLow = 0xffff; tdi->Entry.HighWord.Bits.LimitHi = 0xf; tdi->Entry.HighWord.Bits.Dpl = 3; tdi->Entry.HighWord.Bits.Sys = 0; tdi->Entry.HighWord.Bits.Pres = 1; tdi->Entry.HighWord.Bits.Granularity = 1; tdi->Entry.HighWord.Bits.Default_Big = 1; tdi->Entry.HighWord.Bits.Type = 0x12; /* it has to be one of the system GDT selectors */ if (sel != (wine_get_ds() & ~3) && sel != (wine_get_ss() & ~3)) { if (sel == (wine_get_cs() & ~3)) tdi->Entry.HighWord.Bits.Type |= 8; /* code segment */ else status = STATUS_ACCESS_DENIED; } } } else { SERVER_START_REQ( get_selector_entry ) { req->handle = wine_server_obj_handle( handle ); req->entry = tdi->Selector >> 3; status = wine_server_call( req ); if (!status) { if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED)) status = STATUS_ACCESS_VIOLATION; else { wine_ldt_set_base ( &tdi->Entry, (void *)reply->base ); wine_ldt_set_limit( &tdi->Entry, reply->limit ); wine_ldt_set_flags( &tdi->Entry, reply->flags ); } } } SERVER_END_REQ; } if (status == STATUS_SUCCESS && ret_len) /* yes, that's a bit strange, but it's the way it is */ *ret_len = sizeof(LDT_ENTRY); #else status = STATUS_NOT_IMPLEMENTED; #endif return status; } case ThreadAmILastThread: { SERVER_START_REQ(get_thread_info) { req->handle = wine_server_obj_handle( handle ); req->tid_in = 0; status = wine_server_call( req ); if (status == STATUS_SUCCESS) { BOOLEAN last = reply->last; if (data) memcpy( data, &last, min( length, sizeof(last) )); if (ret_len) *ret_len = min( length, sizeof(last) ); } } SERVER_END_REQ; return status; } case ThreadPriority: case ThreadBasePriority: case ThreadImpersonationToken: case ThreadEnableAlignmentFaultFixup: case ThreadEventPair_Reusable: case ThreadQuerySetWin32StartAddress: case ThreadZeroTlsCell: case ThreadPerformanceCount: case ThreadIdealProcessor: case ThreadPriorityBoost: case ThreadSetTlsArrayAddress: case ThreadIsIoPending: default: FIXME( "info class %d not supported yet\n", class ); return STATUS_NOT_IMPLEMENTED; } } /****************************************************************************** * NtSetInformationThread (NTDLL.@) * ZwSetInformationThread (NTDLL.@) */ NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class, LPCVOID data, ULONG length ) { NTSTATUS status; switch(class) { case ThreadZeroTlsCell: if (handle == GetCurrentThread()) { LIST_ENTRY *entry; DWORD index; if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER; index = *(const DWORD *)data; if (index < TLS_MINIMUM_AVAILABLE) { RtlAcquirePebLock(); for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink) { TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks); teb->TlsSlots[index] = 0; } RtlReleasePebLock(); } else { index -= TLS_MINIMUM_AVAILABLE; if (index >= 8 * sizeof(NtCurrentTeb()->Peb->TlsExpansionBitmapBits)) return STATUS_INVALID_PARAMETER; RtlAcquirePebLock(); for (entry = tls_links.Flink; entry != &tls_links; entry = entry->Flink) { TEB *teb = CONTAINING_RECORD(entry, TEB, TlsLinks); if (teb->TlsExpansionSlots) teb->TlsExpansionSlots[index] = 0; } RtlReleasePebLock(); } return STATUS_SUCCESS; } FIXME( "ZeroTlsCell not supported on other threads\n" ); return STATUS_NOT_IMPLEMENTED; case ThreadImpersonationToken: { const HANDLE *phToken = data; if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER; TRACE("Setting ThreadImpersonationToken handle to %p\n", *phToken ); SERVER_START_REQ( set_thread_info ) { req->handle = wine_server_obj_handle( handle ); req->token = wine_server_obj_handle( *phToken ); req->mask = SET_THREAD_INFO_TOKEN; status = wine_server_call( req ); } SERVER_END_REQ; } return status; case ThreadBasePriority: { const DWORD *pprio = data; if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER; SERVER_START_REQ( set_thread_info ) { req->handle = wine_server_obj_handle( handle ); req->priority = *pprio; req->mask = SET_THREAD_INFO_PRIORITY; status = wine_server_call( req ); } SERVER_END_REQ; } return status; case ThreadAffinityMask: { const ULONG_PTR affinity_mask = ((ULONG_PTR)1 << NtCurrentTeb()->Peb->NumberOfProcessors) - 1; const ULONG_PTR *paff = data; if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER; if (*paff & ~affinity_mask) return STATUS_INVALID_PARAMETER; SERVER_START_REQ( set_thread_info ) { req->handle = wine_server_obj_handle( handle ); req->affinity = *paff; req->mask = SET_THREAD_INFO_AFFINITY; status = wine_server_call( req ); } SERVER_END_REQ; } return status; case ThreadBasicInformation: case ThreadTimes: case ThreadPriority: case ThreadDescriptorTableEntry: case ThreadEnableAlignmentFaultFixup: case ThreadEventPair_Reusable: case ThreadQuerySetWin32StartAddress: case ThreadPerformanceCount: case ThreadAmILastThread: case ThreadIdealProcessor: case ThreadPriorityBoost: case ThreadSetTlsArrayAddress: case ThreadIsIoPending: default: FIXME( "info class %d not supported yet\n", class ); return STATUS_NOT_IMPLEMENTED; } }