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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
*/
#if 0
#pragma makedep unix
#endif
#include "config.h"
#include "wine/port.h"
#include <assert.h>
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <pthread.h>
#include <signal.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
#ifdef HAVE_SYS_SYSCALL_H
#include <sys/syscall.h>
#endif
#ifdef HAVE_SYS_SYSCTL_H
#include <sys/sysctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_QUEUE_H
#include <sys/queue.h>
#endif
#ifdef HAVE_SYS_USER_H
#include <sys/user.h>
#endif
#ifdef HAVE_LIBPROCSTAT_H
#include <libprocstat.h>
#endif
#define NONAMELESSUNION
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "winternl.h"
#include "ddk/wdm.h"
#include "wine/server.h"
#include "wine/debug.h"
#include "wine/exception.h"
#include "unix_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(seh);
#ifndef PTHREAD_STACK_MIN
#define PTHREAD_STACK_MIN 16384
#endif
static int nb_threads = 1;
static inline int get_unix_exit_code( NTSTATUS status )
{
/* prevent a nonzero exit code to end up truncated to zero in unix */
if (status && !(status & 0xff)) return 1;
return status;
}
/***********************************************************************
* pthread_exit_wrapper
*/
static void pthread_exit_wrapper( int 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) );
}
/***********************************************************************
* start_thread
*
* Startup routine for a newly created thread.
*/
static void start_thread( TEB *teb )
{
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)&teb->GdiTebBatch;
struct debug_info debug_info;
BOOL suspend;
debug_info.str_pos = debug_info.out_pos = 0;
thread_data->debug_info = &debug_info;
thread_data->pthread_id = pthread_self();
signal_init_thread( teb );
server_init_thread( thread_data->start, &suspend );
signal_start_thread( thread_data->start, thread_data->param, suspend, pLdrInitializeThunk, teb );
}
/***********************************************************************
* update_attr_list
*
* Update the output attributes.
*/
static void update_attr_list( PS_ATTRIBUTE_LIST *attr, const CLIENT_ID *id, TEB *teb )
{
SIZE_T i, count = (attr->TotalLength - sizeof(attr->TotalLength)) / sizeof(PS_ATTRIBUTE);
for (i = 0; i < count; i++)
{
if (attr->Attributes[i].Attribute == PS_ATTRIBUTE_CLIENT_ID)
{
SIZE_T size = min( attr->Attributes[i].Size, sizeof(*id) );
memcpy( attr->Attributes[i].ValuePtr, id, size );
if (attr->Attributes[i].ReturnLength) *attr->Attributes[i].ReturnLength = size;
}
else if (attr->Attributes[i].Attribute == PS_ATTRIBUTE_TEB_ADDRESS)
{
SIZE_T size = min( attr->Attributes[i].Size, sizeof(teb) );
memcpy( attr->Attributes[i].ValuePtr, &teb, size );
if (attr->Attributes[i].ReturnLength) *attr->Attributes[i].ReturnLength = size;
}
}
}
/***********************************************************************
* NtCreateThreadEx (NTDLL.@)
*/
NTSTATUS WINAPI NtCreateThreadEx( HANDLE *handle, ACCESS_MASK access, OBJECT_ATTRIBUTES *attr,
HANDLE process, PRTL_THREAD_START_ROUTINE start, void *param,
ULONG flags, SIZE_T zero_bits, SIZE_T stack_commit,
SIZE_T stack_reserve, PS_ATTRIBUTE_LIST *attr_list )
{
sigset_t sigset;
pthread_t pthread_id;
pthread_attr_t pthread_attr;
data_size_t len;
struct object_attributes *objattr;
struct ntdll_thread_data *thread_data;
DWORD tid = 0;
int request_pipe[2];
SIZE_T extra_stack = PTHREAD_STACK_MIN;
CLIENT_ID client_id;
TEB *teb;
INITIAL_TEB stack;
NTSTATUS status;
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.flags = flags;
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;
status = server_queue_process_apc( process, &call, &result );
if (status != STATUS_SUCCESS) return status;
if (result.create_thread.status == STATUS_SUCCESS)
{
TEB *teb = wine_server_get_ptr( result.create_thread.teb );
*handle = wine_server_ptr_handle( result.create_thread.handle );
client_id.UniqueProcess = ULongToHandle( result.create_thread.pid );
client_id.UniqueThread = ULongToHandle( result.create_thread.tid );
if (attr_list) update_attr_list( attr_list, &client_id, teb );
}
return result.create_thread.status;
}
if ((status = alloc_object_attributes( attr, &objattr, &len ))) return status;
if (server_pipe( request_pipe ) == -1)
{
free( objattr );
return STATUS_TOO_MANY_OPENED_FILES;
}
wine_server_send_fd( request_pipe[0] );
if (!access) access = THREAD_ALL_ACCESS;
SERVER_START_REQ( new_thread )
{
req->process = wine_server_obj_handle( process );
req->access = access;
req->suspend = flags & THREAD_CREATE_FLAGS_CREATE_SUSPENDED;
req->request_fd = request_pipe[0];
wine_server_add_data( req, objattr, len );
if (!(status = wine_server_call( req )))
{
*handle = wine_server_ptr_handle( reply->handle );
tid = reply->tid;
}
close( request_pipe[0] );
}
SERVER_END_REQ;
free( objattr );
if (status)
{
close( request_pipe[1] );
return status;
}
pthread_sigmask( SIG_BLOCK, &server_block_set, &sigset );
if ((status = virtual_alloc_teb( &teb ))) goto done;
if ((status = virtual_alloc_thread_stack( &stack, stack_reserve, stack_commit, &extra_stack )))
{
virtual_free_teb( teb );
goto done;
}
client_id.UniqueProcess = ULongToHandle( GetCurrentProcessId() );
client_id.UniqueThread = ULongToHandle( tid );
teb->ClientId = client_id;
teb->Tib.StackBase = stack.StackBase;
teb->Tib.StackLimit = stack.StackLimit;
teb->DeallocationStack = stack.DeallocationStack;
thread_data = (struct ntdll_thread_data *)&teb->GdiTebBatch;
thread_data->request_fd = request_pipe[1];
thread_data->start_stack = (char *)teb->Tib.StackBase;
thread_data->start = start;
thread_data->param = param;
pthread_attr_init( &pthread_attr );
pthread_attr_setstack( &pthread_attr, teb->DeallocationStack,
(char *)teb->Tib.StackBase + extra_stack - (char *)teb->DeallocationStack );
pthread_attr_setguardsize( &pthread_attr, 0 );
pthread_attr_setscope( &pthread_attr, PTHREAD_SCOPE_SYSTEM ); /* force creating a kernel thread */
InterlockedIncrement( &nb_threads );
if (pthread_create( &pthread_id, &pthread_attr, (void * (*)(void *))start_thread, teb ))
{
InterlockedDecrement( &nb_threads );
virtual_free_teb( teb );
status = STATUS_NO_MEMORY;
}
pthread_attr_destroy( &pthread_attr );
done:
pthread_sigmask( SIG_SETMASK, &sigset, NULL );
if (status)
{
NtClose( *handle );
close( request_pipe[1] );
return status;
}
if (attr_list) update_attr_list( attr_list, &client_id, teb );
return STATUS_SUCCESS;
}
/***********************************************************************
* abort_thread
*/
void abort_thread( int status )
{
pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
if (InterlockedDecrement( &nb_threads ) <= 0) abort_process( status );
signal_exit_thread( status, pthread_exit_wrapper );
}
/***********************************************************************
* abort_process
*/
void abort_process( int status )
{
_exit( get_unix_exit_code( status ));
}
/***********************************************************************
* exit_thread
*/
static void exit_thread( int status )
{
static void *prev_teb;
TEB *teb;
pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
if ((teb = InterlockedExchangePointer( &prev_teb, NtCurrentTeb() )))
{
struct ntdll_thread_data *thread_data = (struct ntdll_thread_data *)&teb->GdiTebBatch;
if (thread_data->pthread_id)
{
pthread_join( thread_data->pthread_id, NULL );
virtual_free_teb( teb );
}
}
signal_exit_thread( status, pthread_exit_wrapper );
}
/***********************************************************************
* exit_process
*/
void exit_process( int status )
{
pthread_sigmask( SIG_BLOCK, &server_block_set, NULL );
signal_exit_thread( get_unix_exit_code( status ), exit );
}
/**********************************************************************
* wait_suspend
*
* Wait until the thread is no longer suspended.
*/
void wait_suspend( CONTEXT *context )
{
int saved_errno = errno;
/* wait with 0 timeout, will only return once the thread is no longer suspended */
server_select( NULL, 0, SELECT_INTERRUPTIBLE, 0, context, NULL, NULL );
errno = saved_errno;
}
/**********************************************************************
* send_debug_event
*
* Send an EXCEPTION_DEBUG_EVENT event to the debugger.
*/
NTSTATUS send_debug_event( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
{
NTSTATUS ret;
DWORD i;
obj_handle_t handle = 0;
client_ptr_t params[EXCEPTION_MAXIMUM_PARAMETERS];
select_op_t select_op;
sigset_t old_set;
if (!NtCurrentTeb()->Peb->BeingDebugged) return 0; /* no debugger present */
pthread_sigmask( SIG_BLOCK, &server_block_set, &old_set );
for (i = 0; i < min( rec->NumberParameters, EXCEPTION_MAXIMUM_PARAMETERS ); i++)
params[i] = rec->ExceptionInformation[i];
SERVER_START_REQ( queue_exception_event )
{
req->first = first_chance;
req->code = rec->ExceptionCode;
req->flags = rec->ExceptionFlags;
req->record = wine_server_client_ptr( rec->ExceptionRecord );
req->address = wine_server_client_ptr( rec->ExceptionAddress );
req->len = i * sizeof(params[0]);
wine_server_add_data( req, params, req->len );
if (!(ret = wine_server_call( req ))) handle = reply->handle;
}
SERVER_END_REQ;
if (handle)
{
struct xcontext exception_context;
DECLSPEC_ALIGN(64) XSTATE xs;
XSTATE *src_xs;
select_op.wait.op = SELECT_WAIT;
select_op.wait.handles[0] = handle;
exception_context.c = *context;
if ((src_xs = xstate_from_context( context )))
{
context_init_xstate( &exception_context.c, &xs );
memcpy( &xs, src_xs, sizeof(xs) );
}
server_select( &select_op, offsetof( select_op_t, wait.handles[1] ), SELECT_INTERRUPTIBLE,
TIMEOUT_INFINITE, &exception_context.c, NULL, NULL );
SERVER_START_REQ( get_exception_status )
{
req->handle = handle;
ret = wine_server_call( req );
}
SERVER_END_REQ;
if (ret >= 0)
{
*context = exception_context.c;
if (src_xs)
memcpy( src_xs, &xs, sizeof(xs) );
}
}
pthread_sigmask( SIG_SETMASK, &old_set, NULL );
return ret;
}
/*******************************************************************
* NtRaiseException (NTDLL.@)
*/
NTSTATUS WINAPI NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
{
NTSTATUS status = send_debug_event( rec, context, first_chance );
if (status == DBG_CONTINUE || status == DBG_EXCEPTION_HANDLED)
return NtContinue( context, FALSE );
if (first_chance) call_user_exception_dispatcher( rec, context, pKiUserExceptionDispatcher );
if (rec->ExceptionFlags & EH_STACK_INVALID)
ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
else if (rec->ExceptionCode == STATUS_NONCONTINUABLE_EXCEPTION)
ERR("Process attempted to continue execution after noncontinuable exception.\n");
else
ERR("Unhandled exception code %x flags %x addr %p\n",
rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
NtTerminateProcess( NtCurrentProcess(), rec->ExceptionCode );
return STATUS_SUCCESS;
}
/***********************************************************************
* NtOpenThread (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.@)
*/
NTSTATUS WINAPI NtSuspendThread( HANDLE handle, ULONG *count )
{
NTSTATUS ret;
SERVER_START_REQ( suspend_thread )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req )))
{
if (count) *count = reply->count;
}
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtResumeThread (NTDLL.@)
*/
NTSTATUS WINAPI NtResumeThread( HANDLE handle, ULONG *count )
{
NTSTATUS ret;
SERVER_START_REQ( resume_thread )
{
req->handle = wine_server_obj_handle( handle );
if (!(ret = wine_server_call( req )))
{
if (count) *count = reply->count;
}
}
SERVER_END_REQ;
return ret;
}
/******************************************************************************
* NtAlertResumeThread (NTDLL.@)
*/
NTSTATUS WINAPI NtAlertResumeThread( HANDLE handle, ULONG *count )
{
FIXME( "stub: should alert thread %p\n", handle );
return NtResumeThread( handle, count );
}
/******************************************************************************
* NtAlertThread (NTDLL.@)
*/
NTSTATUS WINAPI NtAlertThread( HANDLE handle )
{
FIXME( "stub: %p\n", handle );
return STATUS_NOT_IMPLEMENTED;
}
/******************************************************************************
* NtTerminateThread (NTDLL.@)
*/
NTSTATUS WINAPI NtTerminateThread( HANDLE handle, LONG exit_code )
{
NTSTATUS ret;
BOOL self = (handle == GetCurrentThread());
if (!self || exit_code)
{
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;
}
SERVER_END_REQ;
}
if (self) exit_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.user.func = wine_server_client_ptr( func );
req->call.user.user.args[0] = arg1;
req->call.user.user.args[1] = arg2;
req->call.user.user.args[2] = arg3;
}
else req->call.type = APC_NONE; /* wake up only */
ret = wine_server_call( req );
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* set_thread_context
*/
NTSTATUS set_thread_context( HANDLE handle, const context_t *context, BOOL *self )
{
NTSTATUS ret;
SERVER_START_REQ( set_thread_context )
{
req->handle = wine_server_obj_handle( handle );
wine_server_add_data( req, context, sizeof(*context) );
ret = wine_server_call( req );
*self = reply->self;
}
SERVER_END_REQ;
return ret;
}
/***********************************************************************
* get_thread_context
*/
NTSTATUS get_thread_context( HANDLE handle, context_t *context, unsigned int flags, BOOL *self )
{
NTSTATUS ret;
SERVER_START_REQ( get_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->flags = flags;
wine_server_set_reply( req, context, sizeof(*context) );
ret = wine_server_call( req );
*self = reply->self;
handle = wine_server_ptr_handle( reply->handle );
}
SERVER_END_REQ;
if (ret == STATUS_PENDING)
{
LARGE_INTEGER timeout;
timeout.QuadPart = -1000000;
if (NtWaitForSingleObject( handle, FALSE, &timeout ))
{
NtClose( handle );
return STATUS_ACCESS_DENIED;
}
SERVER_START_REQ( get_thread_context )
{
req->handle = wine_server_obj_handle( handle );
req->flags = flags;
wine_server_set_reply( req, context, sizeof(*context) );
ret = wine_server_call( req );
}
SERVER_END_REQ;
}
return ret;
}
#ifdef __x86_64__
/***********************************************************************
* wow64_get_server_context_flags
*/
static unsigned int wow64_get_server_context_flags( DWORD flags )
{
unsigned int ret = 0;
flags &= ~WOW64_CONTEXT_i386; /* get rid of CPU id */
if (flags & WOW64_CONTEXT_CONTROL) ret |= SERVER_CTX_CONTROL;
if (flags & WOW64_CONTEXT_INTEGER) ret |= SERVER_CTX_INTEGER;
if (flags & WOW64_CONTEXT_SEGMENTS) ret |= SERVER_CTX_SEGMENTS;
if (flags & WOW64_CONTEXT_FLOATING_POINT) ret |= SERVER_CTX_FLOATING_POINT;
if (flags & WOW64_CONTEXT_DEBUG_REGISTERS) ret |= SERVER_CTX_DEBUG_REGISTERS;
if (flags & WOW64_CONTEXT_EXTENDED_REGISTERS) ret |= SERVER_CTX_EXTENDED_REGISTERS;
return ret;
}
/***********************************************************************
* wow64_context_from_server
*/
static NTSTATUS wow64_context_from_server( WOW64_CONTEXT *to, const context_t *from )
{
if (from->cpu != CPU_x86) return STATUS_INVALID_PARAMETER;
to->ContextFlags = WOW64_CONTEXT_i386 | (to->ContextFlags & 0x40);
if (from->flags & SERVER_CTX_CONTROL)
{
to->ContextFlags |= WOW64_CONTEXT_CONTROL;
to->Ebp = from->ctl.i386_regs.ebp;
to->Esp = from->ctl.i386_regs.esp;
to->Eip = from->ctl.i386_regs.eip;
to->SegCs = from->ctl.i386_regs.cs;
to->SegSs = from->ctl.i386_regs.ss;
to->EFlags = from->ctl.i386_regs.eflags;
}
if (from->flags & SERVER_CTX_INTEGER)
{
to->ContextFlags |= WOW64_CONTEXT_INTEGER;
to->Eax = from->integer.i386_regs.eax;
to->Ebx = from->integer.i386_regs.ebx;
to->Ecx = from->integer.i386_regs.ecx;
to->Edx = from->integer.i386_regs.edx;
to->Esi = from->integer.i386_regs.esi;
to->Edi = from->integer.i386_regs.edi;
}
if (from->flags & SERVER_CTX_SEGMENTS)
{
to->ContextFlags |= WOW64_CONTEXT_SEGMENTS;
to->SegDs = from->seg.i386_regs.ds;
to->SegEs = from->seg.i386_regs.es;
to->SegFs = from->seg.i386_regs.fs;
to->SegGs = from->seg.i386_regs.gs;
}
if (from->flags & SERVER_CTX_FLOATING_POINT)
{
to->ContextFlags |= WOW64_CONTEXT_FLOATING_POINT;
to->FloatSave.ControlWord = from->fp.i386_regs.ctrl;
to->FloatSave.StatusWord = from->fp.i386_regs.status;
to->FloatSave.TagWord = from->fp.i386_regs.tag;
to->FloatSave.ErrorOffset = from->fp.i386_regs.err_off;
to->FloatSave.ErrorSelector = from->fp.i386_regs.err_sel;
to->FloatSave.DataOffset = from->fp.i386_regs.data_off;
to->FloatSave.DataSelector = from->fp.i386_regs.data_sel;
to->FloatSave.Cr0NpxState = from->fp.i386_regs.cr0npx;
memcpy( to->FloatSave.RegisterArea, from->fp.i386_regs.regs, sizeof(to->FloatSave.RegisterArea) );
}
if (from->flags & SERVER_CTX_DEBUG_REGISTERS)
{
to->ContextFlags |= WOW64_CONTEXT_DEBUG_REGISTERS;
to->Dr0 = from->debug.i386_regs.dr0;
to->Dr1 = from->debug.i386_regs.dr1;
to->Dr2 = from->debug.i386_regs.dr2;
to->Dr3 = from->debug.i386_regs.dr3;
to->Dr6 = from->debug.i386_regs.dr6;
to->Dr7 = from->debug.i386_regs.dr7;
}
if (from->flags & SERVER_CTX_EXTENDED_REGISTERS)
{
to->ContextFlags |= WOW64_CONTEXT_EXTENDED_REGISTERS;
memcpy( to->ExtendedRegisters, from->ext.i386_regs, sizeof(to->ExtendedRegisters) );
}
if ((to->ContextFlags & WOW64_CONTEXT_XSTATE) == WOW64_CONTEXT_XSTATE)
{
CONTEXT_EX *c_ex = (CONTEXT_EX *)(to + 1);
xstate_from_server( (XSTATE *)((BYTE *)c_ex + c_ex->XState.Offset), from );
}
return STATUS_SUCCESS;
}
/***********************************************************************
* wow64_context_to_server
*/
static void wow64_context_to_server( context_t *to, const WOW64_CONTEXT *from )
{
DWORD flags = from->ContextFlags & ~WOW64_CONTEXT_i386; /* get rid of CPU id */
memset( to, 0, sizeof(*to) );
to->cpu = CPU_x86;
if (flags & WOW64_CONTEXT_CONTROL)
{
to->flags |= SERVER_CTX_CONTROL;
to->ctl.i386_regs.ebp = from->Ebp;
to->ctl.i386_regs.esp = from->Esp;
to->ctl.i386_regs.eip = from->Eip;
to->ctl.i386_regs.cs = from->SegCs;
to->ctl.i386_regs.ss = from->SegSs;
to->ctl.i386_regs.eflags = from->EFlags;
}
if (flags & WOW64_CONTEXT_INTEGER)
{
to->flags |= SERVER_CTX_INTEGER;
to->integer.i386_regs.eax = from->Eax;
to->integer.i386_regs.ebx = from->Ebx;
to->integer.i386_regs.ecx = from->Ecx;
to->integer.i386_regs.edx = from->Edx;
to->integer.i386_regs.esi = from->Esi;
to->integer.i386_regs.edi = from->Edi;
}
if (flags & WOW64_CONTEXT_SEGMENTS)
{
to->flags |= SERVER_CTX_SEGMENTS;
to->seg.i386_regs.ds = from->SegDs;
to->seg.i386_regs.es = from->SegEs;
to->seg.i386_regs.fs = from->SegFs;
to->seg.i386_regs.gs = from->SegGs;
}
if (flags & WOW64_CONTEXT_FLOATING_POINT)
{
to->flags |= SERVER_CTX_FLOATING_POINT;
to->fp.i386_regs.ctrl = from->FloatSave.ControlWord;
to->fp.i386_regs.status = from->FloatSave.StatusWord;
to->fp.i386_regs.tag = from->FloatSave.TagWord;
to->fp.i386_regs.err_off = from->FloatSave.ErrorOffset;
to->fp.i386_regs.err_sel = from->FloatSave.ErrorSelector;
to->fp.i386_regs.data_off = from->FloatSave.DataOffset;
to->fp.i386_regs.data_sel = from->FloatSave.DataSelector;
to->fp.i386_regs.cr0npx = from->FloatSave.Cr0NpxState;
memcpy( to->fp.i386_regs.regs, from->FloatSave.RegisterArea, sizeof(to->fp.i386_regs.regs) );
}
if (flags & WOW64_CONTEXT_DEBUG_REGISTERS)
{
to->flags |= SERVER_CTX_DEBUG_REGISTERS;
to->debug.i386_regs.dr0 = from->Dr0;
to->debug.i386_regs.dr1 = from->Dr1;
to->debug.i386_regs.dr2 = from->Dr2;
to->debug.i386_regs.dr3 = from->Dr3;
to->debug.i386_regs.dr6 = from->Dr6;
to->debug.i386_regs.dr7 = from->Dr7;
}
if (flags & WOW64_CONTEXT_EXTENDED_REGISTERS)
{
to->flags |= SERVER_CTX_EXTENDED_REGISTERS;
memcpy( to->ext.i386_regs, from->ExtendedRegisters, sizeof(to->ext.i386_regs) );
}
if (flags & WOW64_CONTEXT_XSTATE)
{
CONTEXT_EX *c_ex = (CONTEXT_EX *)(from + 1);
xstate_to_server( to, (XSTATE *)((BYTE *)c_ex + c_ex->XState.Offset) );
}
}
#endif /* __x86_64__ */
BOOL get_thread_times(int unix_pid, int unix_tid, LARGE_INTEGER *kernel_time, LARGE_INTEGER *user_time)
{
#ifdef linux
unsigned long clocks_per_sec = sysconf( _SC_CLK_TCK );
unsigned long usr, sys;
const char *pos;
char buf[512];
FILE *f;
int i;
if (unix_tid == -1)
sprintf( buf, "/proc/%u/stat", unix_pid );
else
sprintf( buf, "/proc/%u/task/%u/stat", unix_pid, unix_tid );
if (!(f = fopen( buf, "r" )))
{
WARN("Failed to open %s: %s\n", buf, strerror(errno));
return FALSE;
}
pos = fgets( buf, sizeof(buf), f );
fclose( f );
/* the process name is printed unescaped, so we have to skip to the last ')'
* to avoid misinterpreting the string */
if (pos) pos = strrchr( pos, ')' );
if (pos) pos = strchr( pos + 1, ' ' );
if (pos) pos++;
/* skip over the following fields: state, ppid, pgid, sid, tty_nr, tty_pgrp,
* task->flags, min_flt, cmin_flt, maj_flt, cmaj_flt */
for (i = 0; i < 11 && pos; i++)
{
pos = strchr( pos + 1, ' ' );
if (pos) pos++;
}
/* the next two values are user and system time */
if (pos && (sscanf( pos, "%lu %lu", &usr, &sys ) == 2))
{
kernel_time->QuadPart = (ULONGLONG)sys * 10000000 / clocks_per_sec;
user_time->QuadPart = (ULONGLONG)usr * 10000000 / clocks_per_sec;
return TRUE;
}
ERR("Failed to parse %s\n", debugstr_a(buf));
return FALSE;
#elif defined(HAVE_LIBPROCSTAT)
struct procstat *pstat;
struct kinfo_proc *kip;
unsigned int proc_count;
BOOL ret = FALSE;
pstat = procstat_open_sysctl();
if (!pstat)
return FALSE;
if (unix_tid == -1)
kip = procstat_getprocs(pstat, KERN_PROC_PID, unix_pid, &proc_count);
else
kip = procstat_getprocs(pstat, KERN_PROC_PID | KERN_PROC_INC_THREAD, unix_pid, &proc_count);
if (kip)
{
unsigned int i;
for (i = 0; i < proc_count; i++)
{
if (unix_tid == -1 || kip[i].ki_tid == unix_tid)
{
kernel_time->QuadPart = 10000000 * (ULONGLONG)kip[i].ki_rusage.ru_stime.tv_sec +
10 * (ULONGLONG)kip[i].ki_rusage.ru_stime.tv_usec;
user_time->QuadPart = 10000000 * (ULONGLONG)kip[i].ki_rusage.ru_utime.tv_sec +
10 * (ULONGLONG)kip[i].ki_rusage.ru_utime.tv_usec;
ret = TRUE;
break;
}
}
procstat_freeprocs(pstat, kip);
}
procstat_close(pstat);
return ret;
#else
static int once;
if (!once++) FIXME("not implemented on this platform\n");
return FALSE;
#endif
}
/******************************************************************************
* NtQueryInformationThread (NTDLL.@)
*/
NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
void *data, ULONG length, ULONG *ret_len )
{
NTSTATUS status;
TRACE("(%p,%d,%p,%x,%p)\n", handle, class, data, length, ret_len);
switch (class)
{
case ThreadBasicInformation:
{
THREAD_BASIC_INFORMATION info;
const ULONG_PTR affinity_mask = get_system_affinity_mask();
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
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 = get_system_affinity_mask();
ULONG_PTR affinity = 0;
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->access = THREAD_QUERY_INFORMATION;
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;
int unix_pid, unix_tid;
SERVER_START_REQ( get_thread_times )
{
req->handle = wine_server_obj_handle( handle );
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
kusrt.CreateTime.QuadPart = reply->creation_time;
kusrt.ExitTime.QuadPart = reply->exit_time;
unix_pid = reply->unix_pid;
unix_tid = reply->unix_tid;
}
}
SERVER_END_REQ;
if (status == STATUS_SUCCESS)
{
BOOL ret = FALSE;
kusrt.KernelTime.QuadPart = kusrt.UserTime.QuadPart = 0;
if (unix_pid != -1 && unix_tid != -1)
ret = get_thread_times( unix_pid, unix_tid, &kusrt.KernelTime, &kusrt.UserTime );
if (!ret && handle == GetCurrentThread())
{
/* fall back to process times */
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;
}
if (data) memcpy( data, &kusrt, min( length, sizeof(kusrt) ));
if (ret_len) *ret_len = min( length, sizeof(kusrt) );
}
return status;
}
case ThreadDescriptorTableEntry:
return get_thread_ldt_entry( handle, data, length, ret_len );
case ThreadAmILastThread:
{
if (length != sizeof(ULONG)) return STATUS_INFO_LENGTH_MISMATCH;
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
ULONG last = reply->last;
if (data) memcpy( data, &last, sizeof(last) );
if (ret_len) *ret_len = sizeof(last);
}
}
SERVER_END_REQ;
return status;
}
case ThreadQuerySetWin32StartAddress:
{
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->access = THREAD_QUERY_INFORMATION;
status = wine_server_call( req );
if (status == STATUS_SUCCESS)
{
PRTL_THREAD_START_ROUTINE entry = wine_server_get_ptr( reply->entry_point );
if (data) memcpy( data, &entry, min( length, sizeof(entry) ) );
if (ret_len) *ret_len = min( length, sizeof(entry) );
}
}
SERVER_END_REQ;
return status;
}
case ThreadGroupInformation:
{
const ULONG_PTR affinity_mask = get_system_affinity_mask();
GROUP_AFFINITY affinity;
memset( &affinity, 0, sizeof(affinity) );
affinity.Group = 0; /* Wine only supports max 64 processors */
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
if (!(status = wine_server_call( req ))) affinity.Mask = 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 ThreadIsIoPending:
FIXME( "ThreadIsIoPending info class not supported yet\n" );
if (length != sizeof(BOOL)) return STATUS_INFO_LENGTH_MISMATCH;
if (!data) return STATUS_ACCESS_DENIED;
*(BOOL*)data = FALSE;
if (ret_len) *ret_len = sizeof(BOOL);
return STATUS_SUCCESS;
case ThreadSuspendCount:
if (length != sizeof(ULONG)) return STATUS_INFO_LENGTH_MISMATCH;
if (!data) return STATUS_ACCESS_VIOLATION;
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
if (!(status = wine_server_call( req ))) *(ULONG *)data = reply->suspend_count;
}
SERVER_END_REQ;
return status;
case ThreadDescription:
{
THREAD_DESCRIPTION_INFORMATION *info = data;
data_size_t len, desc_len = 0;
WCHAR *ptr;
len = length >= sizeof(*info) ? length - sizeof(*info) : 0;
ptr = info ? (WCHAR *)(info + 1) : NULL;
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
if (ptr) wine_server_set_reply( req, ptr, len );
status = wine_server_call( req );
desc_len = reply->desc_len;
}
SERVER_END_REQ;
if (!info) status = STATUS_BUFFER_TOO_SMALL;
else if (status == STATUS_SUCCESS)
{
info->Description.Length = info->Description.MaximumLength = desc_len;
info->Description.Buffer = ptr;
}
if (ret_len && (status == STATUS_SUCCESS || status == STATUS_BUFFER_TOO_SMALL))
*ret_len = sizeof(*info) + desc_len;
return status;
}
case ThreadWow64Context:
{
#ifdef __x86_64__
BOOL self;
WOW64_CONTEXT *context = data;
context_t server_context;
unsigned int server_flags;
if (length != sizeof(*context)) return STATUS_INFO_LENGTH_MISMATCH;
server_flags = wow64_get_server_context_flags( context->ContextFlags );
if ((status = get_thread_context( handle, &server_context, server_flags, &self ))) return status;
if (self) return STATUS_INVALID_PARAMETER;
status = wow64_context_from_server( context, &server_context );
if (ret_len && !status) *ret_len = sizeof(*context);
return status;
#else
return STATUS_INVALID_INFO_CLASS;
#endif
}
case ThreadHideFromDebugger:
if (length != sizeof(BOOLEAN)) return STATUS_INFO_LENGTH_MISMATCH;
if (!data) return STATUS_ACCESS_VIOLATION;
SERVER_START_REQ( get_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->access = THREAD_QUERY_INFORMATION;
if ((status = wine_server_call( req ))) return status;
*(BOOLEAN*)data = reply->dbg_hidden;
}
SERVER_END_REQ;
if (ret_len) *ret_len = sizeof(BOOLEAN);
return STATUS_SUCCESS;
case ThreadEnableAlignmentFaultFixup:
return STATUS_INVALID_INFO_CLASS;
case ThreadPriority:
case ThreadBasePriority:
case ThreadImpersonationToken:
case ThreadEventPair_Reusable:
case ThreadZeroTlsCell:
case ThreadPerformanceCount:
case ThreadIdealProcessor:
case ThreadPriorityBoost:
case ThreadSetTlsArrayAddress:
default:
FIXME( "info class %d not supported yet\n", class );
return STATUS_NOT_IMPLEMENTED;
}
}
/******************************************************************************
* NtSetInformationThread (NTDLL.@)
*/
NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class,
const void *data, ULONG length )
{
NTSTATUS status;
TRACE("(%p,%d,%p,%x)\n", handle, class, data, length);
switch (class)
{
case ThreadZeroTlsCell:
if (handle == GetCurrentThread())
{
if (length != sizeof(DWORD)) return STATUS_INVALID_PARAMETER;
return virtual_clear_tls_index( *(const ULONG *)data );
}
FIXME( "ZeroTlsCell not supported on other threads\n" );
return STATUS_NOT_IMPLEMENTED;
case ThreadImpersonationToken:
{
const HANDLE *token = data;
if (length != sizeof(HANDLE)) return STATUS_INVALID_PARAMETER;
TRACE("Setting ThreadImpersonationToken handle to %p\n", *token );
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->token = wine_server_obj_handle( *token );
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 = get_system_affinity_mask();
ULONG_PTR req_aff;
if (length != sizeof(ULONG_PTR)) return STATUS_INVALID_PARAMETER;
req_aff = *(const ULONG_PTR *)data & affinity_mask;
if (!req_aff) return STATUS_INVALID_PARAMETER;
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->affinity = req_aff;
req->mask = SET_THREAD_INFO_AFFINITY;
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
case ThreadHideFromDebugger:
if (length) return STATUS_INFO_LENGTH_MISMATCH;
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->mask = SET_THREAD_INFO_DBG_HIDDEN;
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
case ThreadQuerySetWin32StartAddress:
{
const PRTL_THREAD_START_ROUTINE *entry = data;
if (length != sizeof(PRTL_THREAD_START_ROUTINE)) return STATUS_INVALID_PARAMETER;
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->mask = SET_THREAD_INFO_ENTRYPOINT;
req->entry_point = wine_server_client_ptr( *entry );
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
case ThreadGroupInformation:
{
const ULONG_PTR affinity_mask = get_system_affinity_mask();
const GROUP_AFFINITY *req_aff;
if (length != sizeof(*req_aff)) return STATUS_INVALID_PARAMETER;
if (!data) return STATUS_ACCESS_VIOLATION;
req_aff = data;
/* On Windows the request fails if the reserved fields are set */
if (req_aff->Reserved[0] || req_aff->Reserved[1] || req_aff->Reserved[2])
return STATUS_INVALID_PARAMETER;
/* Wine only supports max 64 processors */
if (req_aff->Group) return STATUS_INVALID_PARAMETER;
if (req_aff->Mask & ~affinity_mask) return STATUS_INVALID_PARAMETER;
if (!req_aff->Mask) return STATUS_INVALID_PARAMETER;
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->affinity = req_aff->Mask;
req->mask = SET_THREAD_INFO_AFFINITY;
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
case ThreadDescription:
{
const THREAD_DESCRIPTION_INFORMATION *info = data;
if (length != sizeof(*info)) return STATUS_INFO_LENGTH_MISMATCH;
if (!info) return STATUS_ACCESS_VIOLATION;
if (info->Description.Length != info->Description.MaximumLength) return STATUS_INVALID_PARAMETER;
if (info->Description.Length && !info->Description.Buffer) return STATUS_ACCESS_VIOLATION;
SERVER_START_REQ( set_thread_info )
{
req->handle = wine_server_obj_handle( handle );
req->mask = SET_THREAD_INFO_DESCRIPTION;
wine_server_add_data( req, info->Description.Buffer, info->Description.Length );
status = wine_server_call( req );
}
SERVER_END_REQ;
return status;
}
case ThreadWow64Context:
{
#ifdef __x86_64__
BOOL self;
const WOW64_CONTEXT *context = data;
context_t server_context;
if (length != sizeof(*context)) return STATUS_INFO_LENGTH_MISMATCH;
wow64_context_to_server( &server_context, context );
return set_thread_context( handle, &server_context, &self );
#else
return STATUS_INVALID_INFO_CLASS;
#endif
}
case ThreadEnableAlignmentFaultFixup:
if (length != sizeof(BOOLEAN)) return STATUS_INFO_LENGTH_MISMATCH;
if (!data) return STATUS_ACCESS_VIOLATION;
FIXME( "ThreadEnableAlignmentFaultFixup stub!\n" );
return STATUS_SUCCESS;
case ThreadBasicInformation:
case ThreadTimes:
case ThreadPriority:
case ThreadDescriptorTableEntry:
case ThreadEventPair_Reusable:
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;
}
}
/******************************************************************************
* NtGetCurrentProcessorNumber (NTDLL.@)
*/
ULONG WINAPI NtGetCurrentProcessorNumber(void)
{
ULONG processor;
#if defined(__linux__) && defined(__NR_getcpu)
int res = syscall(__NR_getcpu, &processor, NULL, NULL);
if (res != -1) return processor;
#endif
if (NtCurrentTeb()->Peb->NumberOfProcessors > 1)
{
ULONG_PTR thread_mask, processor_mask;
if (!NtQueryInformationThread( GetCurrentThread(), ThreadAffinityMask,
&thread_mask, sizeof(thread_mask), NULL ))
{
for (processor = 0; processor < NtCurrentTeb()->Peb->NumberOfProcessors; processor++)
{
processor_mask = (1 << processor);
if (thread_mask & processor_mask)
{
if (thread_mask != processor_mask)
FIXME( "need multicore support (%d processors)\n",
NtCurrentTeb()->Peb->NumberOfProcessors );
return processor;
}
}
}
}
/* fallback to the first processor */
return 0;
}
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