/* * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #include <sys/types.h> #ifdef HAVE_SYS_MMAN_H #include <sys/mman.h> #endif #ifdef HAVE_SYS_TIMES_H #include <sys/times.h> #endif #define NONAMELESSUNION #include "ntstatus.h" #define WIN32_NO_STATUS #include "thread.h" #include "winternl.h" #include "wine/library.h" #include "wine/server.h" #include "wine/pthread.h" #include "wine/debug.h" #include "ntdll_misc.h" WINE_DEFAULT_DEBUG_CHANNEL(thread); /* info passed to a starting thread */ struct startup_info { struct wine_pthread_thread_info pthread_info; PRTL_THREAD_START_ROUTINE entry_point; void *entry_arg; }; static PEB peb; 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 LIST_ENTRY tls_links; static size_t sigstack_total_size; struct wine_pthread_functions pthread_functions = { NULL }; /*********************************************************************** * init_teb */ static inline NTSTATUS init_teb( TEB *teb ) { struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1; teb->Tib.ExceptionList = (void *)~0UL; teb->Tib.StackBase = (void *)~0UL; teb->Tib.Self = &teb->Tib; teb->Peb = &peb; teb->StaticUnicodeString.Buffer = teb->StaticUnicodeBuffer; teb->StaticUnicodeString.MaximumLength = sizeof(teb->StaticUnicodeBuffer); if (!(thread_regs->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; } /*********************************************************************** * free_teb */ static inline void free_teb( TEB *teb ) { SIZE_T size = 0; void *addr = teb; struct ntdll_thread_regs *thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1; NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE ); wine_ldt_free_fs( thread_regs->fs ); munmap( teb, sigstack_total_size ); } /*********************************************************************** * thread_init * * Setup the initial thread. * * NOTES: The first allocated TEB on NT is at 0x7ffde000. */ void thread_init(void) { TEB *teb; void *addr; SIZE_T info_size; struct ntdll_thread_data *thread_data; struct ntdll_thread_regs *thread_regs; struct wine_pthread_thread_info thread_info; static struct debug_info debug_info; /* debug info for initial thread */ peb.NumberOfProcessors = 1; peb.ProcessParameters = ¶ms; peb.TlsBitmap = &tls_bitmap; peb.TlsExpansionBitmap = &tls_expansion_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 ); InitializeListHead( &ldr.InLoadOrderModuleList ); InitializeListHead( &ldr.InMemoryOrderModuleList ); InitializeListHead( &ldr.InInitializationOrderModuleList ); InitializeListHead( &tls_links ); sigstack_total_size = get_signal_stack_total_size(); thread_info.teb_size = sigstack_total_size; VIRTUAL_alloc_teb( &addr, thread_info.teb_size, TRUE ); teb = addr; init_teb( teb ); thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1; thread_data->debug_info = &debug_info; InsertHeadList( &tls_links, &teb->TlsLinks ); thread_info.stack_base = NULL; thread_info.stack_size = 0; thread_info.teb_base = teb; thread_info.teb_sel = thread_regs->fs; wine_pthread_get_functions( &pthread_functions, sizeof(pthread_functions) ); pthread_functions.init_current_teb( &thread_info ); pthread_functions.init_thread( &thread_info ); 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( thread_info.pid, thread_info.tid, NULL ); /* 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) { RTL_USER_PROCESS_PARAMETERS *params = NULL; if (NtAllocateVirtualMemory( NtCurrentProcess(), (void **)¶ms, 0, &info_size, MEM_COMMIT, PAGE_READWRITE ) == STATUS_SUCCESS) { params->AllocationSize = info_size; NtCurrentTeb()->Peb->ProcessParameters = params; } } 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 ); } } /*********************************************************************** * start_thread * * Startup routine for a newly created thread. */ static void start_thread( struct wine_pthread_thread_info *info ) { TEB *teb = info->teb_base; struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; struct startup_info *startup_info = (struct startup_info *)info; PRTL_THREAD_START_ROUTINE func = startup_info->entry_point; void *arg = startup_info->entry_arg; struct debug_info debug_info; SIZE_T size, page_size = getpagesize(); debug_info.str_pos = debug_info.strings; debug_info.out_pos = debug_info.output; thread_data->debug_info = &debug_info; pthread_functions.init_current_teb( info ); SIGNAL_Init(); server_init_thread( info->pid, info->tid, func ); pthread_functions.init_thread( info ); /* allocate a memory view for the stack */ size = info->stack_size; teb->DeallocationStack = info->stack_base; NtAllocateVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, 0, &size, MEM_SYSTEM, PAGE_READWRITE ); /* limit is lower than base since the stack grows down */ teb->Tib.StackBase = (char *)info->stack_base + info->stack_size; teb->Tib.StackLimit = (char *)info->stack_base + page_size; /* setup the guard page */ size = page_size; NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, PAGE_NOACCESS, NULL ); RtlFreeHeap( GetProcessHeap(), 0, info ); RtlAcquirePebLock(); InsertHeadList( &tls_links, &teb->TlsLinks ); RtlReleasePebLock(); 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 ) { struct ntdll_thread_data *thread_data; struct ntdll_thread_regs *thread_regs = NULL; struct startup_info *info = NULL; void *addr; HANDLE handle = 0; TEB *teb; DWORD tid = 0; int request_pipe[2]; NTSTATUS status; SIZE_T page_size = getpagesize(); if( ! is_current_process( process ) ) { ERR("Unsupported on other process\n"); return STATUS_ACCESS_DENIED; } if (pipe( request_pipe ) == -1) return STATUS_TOO_MANY_OPENED_FILES; fcntl( request_pipe[1], F_SETFD, 1 ); /* set close on exec flag */ 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 = reply->handle; tid = reply->tid; } close( request_pipe[0] ); } SERVER_END_REQ; if (status) goto error; if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*info) ))) { status = STATUS_NO_MEMORY; goto error; } info->pthread_info.teb_size = sigstack_total_size; if ((status = VIRTUAL_alloc_teb( &addr, info->pthread_info.teb_size, FALSE ))) goto error; teb = addr; if ((status = init_teb( teb ))) goto error; teb->ClientId.UniqueProcess = (HANDLE)GetCurrentProcessId(); teb->ClientId.UniqueThread = (HANDLE)tid; thread_data = (struct ntdll_thread_data *)teb->SystemReserved2; thread_regs = (struct ntdll_thread_regs *)teb->SpareBytes1; thread_data->request_fd = request_pipe[1]; info->pthread_info.teb_base = teb; info->pthread_info.teb_sel = thread_regs->fs; /* 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 (!stack_reserve || !stack_commit) { IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress ); if (!stack_reserve) stack_reserve = nt->OptionalHeader.SizeOfStackReserve; if (!stack_commit) stack_commit = nt->OptionalHeader.SizeOfStackCommit; } if (stack_reserve < stack_commit) stack_reserve = stack_commit; stack_reserve += page_size; /* for the guard page */ stack_reserve = (stack_reserve + 0xffff) & ~0xffff; /* round to 64K boundary */ if (stack_reserve < 1024 * 1024) stack_reserve = 1024 * 1024; /* Xlib needs a large stack */ info->pthread_info.stack_base = NULL; info->pthread_info.stack_size = stack_reserve; info->pthread_info.entry = start_thread; info->entry_point = start; info->entry_arg = param; if (pthread_functions.create_thread( &info->pthread_info ) == -1) { status = STATUS_NO_MEMORY; goto error; } if (id) id->UniqueThread = (HANDLE)tid; if (handle_ptr) *handle_ptr = handle; else NtClose( handle ); return STATUS_SUCCESS; error: if (thread_regs) wine_ldt_free_fs( thread_regs->fs ); if (addr) { SIZE_T size = 0; NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE ); } if (info) RtlFreeHeap( GetProcessHeap(), 0, info ); if (handle) NtClose( handle ); close( request_pipe[1] ); return status; } /*********************************************************************** * RtlExitUserThread (NTDLL.@) */ void WINAPI RtlExitUserThread( ULONG status ) { LdrShutdownThread(); server_exit_thread( 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 = (thread_id_t)id->UniqueThread; req->access = access; req->attributes = attr ? attr->Attributes : 0; ret = wine_server_call( req ); *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 = 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 = 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 = 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 server_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 = handle; req->user = 1; req->func = func; req->arg1 = (void *)arg1; req->arg2 = (void *)arg2; req->arg3 = (void *)arg3; 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) { SERVER_START_REQ( set_thread_context ) { req->handle = handle; req->flags = context->ContextFlags; req->suspend = 0; wine_server_add_data( req, context, sizeof(*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 = handle; req->flags = context->ContextFlags; req->suspend = 0; wine_server_add_data( req, context, sizeof(*context) ); ret = wine_server_call( req ); } SERVER_END_REQ; if (ret != STATUS_PENDING) break; NtYieldExecution(); } NtResumeThread( handle, &dummy ); } if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED; } if (ret) return ret; } if (self) set_cpu_context( context ); return STATUS_SUCCESS; } /* copy a context structure according to the flags */ static inline void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags ) { #ifdef __i386__ flags &= ~CONTEXT_i386; /* get rid of CPU id */ if (flags & CONTEXT_INTEGER) { to->Eax = from->Eax; to->Ebx = from->Ebx; to->Ecx = from->Ecx; to->Edx = from->Edx; to->Esi = from->Esi; to->Edi = from->Edi; } if (flags & CONTEXT_CONTROL) { to->Ebp = from->Ebp; to->Esp = from->Esp; to->Eip = from->Eip; to->SegCs = from->SegCs; to->SegSs = from->SegSs; to->EFlags = from->EFlags; } if (flags & CONTEXT_SEGMENTS) { to->SegDs = from->SegDs; to->SegEs = from->SegEs; to->SegFs = from->SegFs; to->SegGs = from->SegGs; } if (flags & CONTEXT_DEBUG_REGISTERS) { to->Dr0 = from->Dr0; to->Dr1 = from->Dr1; to->Dr2 = from->Dr2; to->Dr3 = from->Dr3; to->Dr6 = from->Dr6; to->Dr7 = from->Dr7; } if (flags & CONTEXT_FLOATING_POINT) { to->FloatSave = from->FloatSave; } #elif defined(__x86_64__) flags &= ~CONTEXT_AMD64; /* get rid of CPU id */ if (flags & CONTEXT_CONTROL) { to->Rbp = from->Rbp; to->Rip = from->Rip; to->Rsp = from->Rsp; to->SegCs = from->SegCs; to->SegSs = from->SegSs; to->EFlags = from->EFlags; to->MxCsr = from->MxCsr; } if (flags & CONTEXT_INTEGER) { to->Rax = from->Rax; to->Rcx = from->Rcx; to->Rdx = from->Rdx; to->Rbx = from->Rbx; to->Rsi = from->Rsi; to->Rdi = from->Rdi; to->R8 = from->R8; to->R9 = from->R9; to->R10 = from->R10; to->R11 = from->R11; to->R12 = from->R12; to->R13 = from->R13; to->R14 = from->R14; to->R15 = from->R15; } if (flags & CONTEXT_SEGMENTS) { to->SegDs = from->SegDs; to->SegEs = from->SegEs; to->SegFs = from->SegFs; to->SegGs = from->SegGs; } if (flags & CONTEXT_FLOATING_POINT) { to->u.FltSave = from->u.FltSave; } if (flags & CONTEXT_DEBUG_REGISTERS) { to->Dr0 = from->Dr0; to->Dr1 = from->Dr1; to->Dr2 = from->Dr2; to->Dr3 = from->Dr3; to->Dr6 = from->Dr6; to->Dr7 = from->Dr7; } #elif defined(__sparc__) flags &= ~CONTEXT_SPARC; /* get rid of CPU id */ if (flags & CONTEXT_CONTROL) { to->psr = from->psr; to->pc = from->pc; to->npc = from->npc; to->y = from->y; to->wim = from->wim; to->tbr = from->tbr; } if (flags & CONTEXT_INTEGER) { to->g0 = from->g0; to->g1 = from->g1; to->g2 = from->g2; to->g3 = from->g3; to->g4 = from->g4; to->g5 = from->g5; to->g6 = from->g6; to->g7 = from->g7; to->o0 = from->o0; to->o1 = from->o1; to->o2 = from->o2; to->o3 = from->o3; to->o4 = from->o4; to->o5 = from->o5; to->o6 = from->o6; to->o7 = from->o7; to->l0 = from->l0; to->l1 = from->l1; to->l2 = from->l2; to->l3 = from->l3; to->l4 = from->l4; to->l5 = from->l5; to->l6 = from->l6; to->l7 = from->l7; to->i0 = from->i0; to->i1 = from->i1; to->i2 = from->i2; to->i3 = from->i3; to->i4 = from->i4; to->i5 = from->i5; to->i6 = from->i6; to->i7 = from->i7; } if (flags & CONTEXT_FLOATING_POINT) { /* FIXME */ } #elif defined(__powerpc__) /* Has no CPU id */ if (flags & CONTEXT_CONTROL) { to->Msr = from->Msr; to->Ctr = from->Ctr; to->Iar = from->Iar; } if (flags & CONTEXT_INTEGER) { to->Gpr0 = from->Gpr0; to->Gpr1 = from->Gpr1; to->Gpr2 = from->Gpr2; to->Gpr3 = from->Gpr3; to->Gpr4 = from->Gpr4; to->Gpr5 = from->Gpr5; to->Gpr6 = from->Gpr6; to->Gpr7 = from->Gpr7; to->Gpr8 = from->Gpr8; to->Gpr9 = from->Gpr9; to->Gpr10 = from->Gpr10; to->Gpr11 = from->Gpr11; to->Gpr12 = from->Gpr12; to->Gpr13 = from->Gpr13; to->Gpr14 = from->Gpr14; to->Gpr15 = from->Gpr15; to->Gpr16 = from->Gpr16; to->Gpr17 = from->Gpr17; to->Gpr18 = from->Gpr18; to->Gpr19 = from->Gpr19; to->Gpr20 = from->Gpr20; to->Gpr21 = from->Gpr21; to->Gpr22 = from->Gpr22; to->Gpr23 = from->Gpr23; to->Gpr24 = from->Gpr24; to->Gpr25 = from->Gpr25; to->Gpr26 = from->Gpr26; to->Gpr27 = from->Gpr27; to->Gpr28 = from->Gpr28; to->Gpr29 = from->Gpr29; to->Gpr30 = from->Gpr30; to->Gpr31 = from->Gpr31; to->Xer = from->Xer; to->Cr = from->Cr; } if (flags & CONTEXT_FLOATING_POINT) { to->Fpr0 = from->Fpr0; to->Fpr1 = from->Fpr1; to->Fpr2 = from->Fpr2; to->Fpr3 = from->Fpr3; to->Fpr4 = from->Fpr4; to->Fpr5 = from->Fpr5; to->Fpr6 = from->Fpr6; to->Fpr7 = from->Fpr7; to->Fpr8 = from->Fpr8; to->Fpr9 = from->Fpr9; to->Fpr10 = from->Fpr10; to->Fpr11 = from->Fpr11; to->Fpr12 = from->Fpr12; to->Fpr13 = from->Fpr13; to->Fpr14 = from->Fpr14; to->Fpr15 = from->Fpr15; to->Fpr16 = from->Fpr16; to->Fpr17 = from->Fpr17; to->Fpr18 = from->Fpr18; to->Fpr19 = from->Fpr19; to->Fpr20 = from->Fpr20; to->Fpr21 = from->Fpr21; to->Fpr22 = from->Fpr22; to->Fpr23 = from->Fpr23; to->Fpr24 = from->Fpr24; to->Fpr25 = from->Fpr25; to->Fpr26 = from->Fpr26; to->Fpr27 = from->Fpr27; to->Fpr28 = from->Fpr28; to->Fpr29 = from->Fpr29; to->Fpr30 = from->Fpr30; to->Fpr31 = from->Fpr31; to->Fpscr = from->Fpscr; } #else #error You must implement context copying for your CPU #endif } /*********************************************************************** * NtGetContextThread (NTDLL.@) * ZwGetContextThread (NTDLL.@) */ NTSTATUS WINAPI NtGetContextThread( HANDLE handle, CONTEXT *context ) { NTSTATUS ret; CONTEXT ctx; DWORD dummy, i; BOOL self = FALSE; SERVER_START_REQ( get_thread_context ) { req->handle = handle; req->flags = context->ContextFlags; req->suspend = 0; wine_server_set_reply( req, &ctx, sizeof(ctx) ); 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 = handle; req->flags = context->ContextFlags; req->suspend = 0; wine_server_set_reply( req, &ctx, sizeof(ctx) ); ret = wine_server_call( req ); } SERVER_END_REQ; if (ret != STATUS_PENDING) break; NtYieldExecution(); } NtResumeThread( handle, &dummy ); } } if (ret == STATUS_SUCCESS) { copy_context( context, &ctx, context->ContextFlags ); #ifdef __i386__ /* update the cached version of the debug registers */ if (self && (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 } else if (ret == STATUS_PENDING) ret = STATUS_ACCESS_DENIED; return ret; } /****************************************************************************** * 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; SERVER_START_REQ( get_thread_info ) { req->handle = handle; req->tid_in = 0; if (!(status = wine_server_call( req ))) { info.ExitStatus = reply->exit_code; info.TebBaseAddress = reply->teb; info.ClientId.UniqueProcess = (HANDLE)reply->pid; info.ClientId.UniqueThread = (HANDLE)reply->tid; info.AffinityMask = reply->affinity; 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 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 = handle; req->tid_in = 0; status = wine_server_call( req ); if (status == STATUS_SUCCESS) { RtlSecondsSince1970ToTime( reply->creation_time, &kusrt.CreateTime ); RtlSecondsSince1970ToTime( reply->exit_time, &kusrt.ExitTime ); } } 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 { kusrt.KernelTime.QuadPart = 0; kusrt.UserTime.QuadPart = 0; FIXME("Cannot get kerneltime or usertime of other threads\n"); } if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) )); if (ret_len) *ret_len = min( length, sizeof(kusrt) ); } } return status; case ThreadPriority: case ThreadBasePriority: case ThreadAffinityMask: case ThreadImpersonationToken: case ThreadDescriptorTableEntry: case ThreadEnableAlignmentFaultFixup: case ThreadEventPair_Reusable: case ThreadQuerySetWin32StartAddress: case ThreadZeroTlsCell: 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; } } /****************************************************************************** * 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 = handle; req->token = *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 = handle; req->priority = *pprio; req->mask = SET_THREAD_INFO_PRIORITY; status = wine_server_call( req ); } SERVER_END_REQ; } return status; case ThreadAffinityMask: { const DWORD *paff = data; if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER; SERVER_START_REQ( set_thread_info ) { req->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; } } /********************************************************************** * NtCurrentTeb (NTDLL.@) */ #if defined(__i386__) && defined(__GNUC__) __ASM_GLOBAL_FUNC( NtCurrentTeb, ".byte 0x64\n\tmovl 0x18,%eax\n\tret" ); #elif defined(__i386__) && defined(_MSC_VER) /* Nothing needs to be done. MS C "magically" exports the inline version from winnt.h */ #else /**********************************************************************/ TEB * WINAPI NtCurrentTeb(void) { return pthread_functions.get_current_teb(); } #endif /* __i386__ */