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wine/dlls/ntdll/thread.c

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/*
* 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 <assert.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"
#include "wine/exception.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_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;
static ULONG sigstack_zero_bits;
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->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 );
}
/***********************************************************************
* fix_unicode_string
*
* Make sure the unicode string doesn't point beyond the end pointer
*/
static inline void fix_unicode_string( UNICODE_STRING *str, 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 **)&params, 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 = reply->exe_file;
params->hStdInput = reply->hstdin;
params->hStdOutput = reply->hstdout;
params->hStdError = 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( &params->CurrentDirectory.DosPath, (char *)info_size );
fix_unicode_string( &params->DllPath, (char *)info_size );
fix_unicode_string( &params->ImagePathName, (char *)info_size );
fix_unicode_string( &params->CommandLine, (char *)info_size );
fix_unicode_string( &params->WindowTitle, (char *)info_size );
fix_unicode_string( &params->Desktop, (char *)info_size );
fix_unicode_string( &params->ShellInfo, (char *)info_size );
fix_unicode_string( &params->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;
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 */
virtual_init();
/* reserve space for shared user data */
addr = (void *)0x7ffe0000;
size = 0x10000;
NtAllocateVirtualMemory( NtCurrentProcess(), &addr, 0, &size, MEM_RESERVE, PAGE_READONLY );
/* 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 = &params;
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 );
/* allocate and initialize the initial TEB */
sigstack_total_size = get_signal_stack_total_size();
while (1 << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
assert( 1 << sigstack_zero_bits == sigstack_total_size ); /* must be a power of 2 */
thread_info.teb_size = sigstack_total_size;
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;
thread_info.teb_size = size;
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 );
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( 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)
{
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, &params.hStdInput );
wine_server_fd_to_handle( 1, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdOutput );
wine_server_fd_to_handle( 2, GENERIC_WRITE|SYNCHRONIZE, OBJ_INHERIT, &params.hStdError );
}
return exe_file;
}
typedef LONG (WINAPI *PUNHANDLED_EXCEPTION_FILTER)(PEXCEPTION_POINTERS);
static PUNHANDLED_EXCEPTION_FILTER get_unhandled_exception_filter(void)
{
static PUNHANDLED_EXCEPTION_FILTER unhandled_exception_filter;
static const WCHAR kernel32W[] = {'k','e','r','n','e','l','3','2','.','d','l','l',0};
UNICODE_STRING module_name;
ANSI_STRING func_name;
HMODULE kernel32_handle;
if (unhandled_exception_filter) return unhandled_exception_filter;
RtlInitUnicodeString(&module_name, kernel32W);
RtlInitAnsiString( &func_name, "UnhandledExceptionFilter" );
if (LdrGetDllHandle( 0, 0, &module_name, &kernel32_handle ) == STATUS_SUCCESS)
LdrGetProcedureAddress( kernel32_handle, &func_name, 0,
(void **)&unhandled_exception_filter );
return unhandled_exception_filter;
}
/***********************************************************************
* 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();
/* NOTE: Windows does not have an exception handler around the call to
* the thread attach. We do for ease of debugging */
if (get_unhandled_exception_filter())
{
__TRY
{
MODULE_DllThreadAttach( NULL );
}
__EXCEPT(get_unhandled_exception_filter())
{
NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
}
__ENDTRY
}
else
MODULE_DllThreadAttach( NULL );
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 = NULL;
HANDLE handle = 0;
TEB *teb;
DWORD tid = 0;
int request_pipe[2];
NTSTATUS status;
SIZE_T size, 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;
}
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->pthread_info.teb_size = size;
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 );
}
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;
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)
{
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_PENDING) ret = STATUS_ACCESS_DENIED;
}
if (ret) return ret;
copy_context( context, &ctx, context->ContextFlags & ctx.ContextFlags );
needed_flags &= ~ctx.ContextFlags;
}
if (self)
{
if (needed_flags)
{
get_cpu_context( &ctx );
copy_context( context, &ctx, 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;
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)
{
NTDLL_from_server_abstime( &kusrt.CreateTime, &reply->creation_time );
NTDLL_from_server_abstime( &kusrt.ExitTime, &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
{
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 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 = handle;
req->entry = tdi->Selector >> 3;
status = wine_server_call( req );
if (!status)
{
if (!(reply->flags & WINE_LDT_FLAGS_ALLOCATED))
status = STATUS_INVALID_LDT_OFFSET;
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) *ret_len = sizeof(*tdi);
#else
status = STATUS_NOT_IMPLEMENTED;
#endif
return status;
}
case ThreadAmILastThread:
{
SERVER_START_REQ(get_thread_info)
{
req->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 ThreadAffinityMask:
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 = 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__ */
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