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![Paul Gofman](/assets/img/avatar_default.png)
Signed-off-by: Paul Gofman <pgofman@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
1068 lines
34 KiB
C
1068 lines
34 KiB
C
/*
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* NT exception handling routines
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*
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* Copyright 1999 Turchanov Sergey
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* Copyright 1999 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdarg.h>
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winternl.h"
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#include "ddk/wdm.h"
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#include "wine/exception.h"
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#include "wine/list.h"
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#include "wine/debug.h"
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#include "excpt.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(seh);
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typedef struct
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{
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struct list entry;
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PVECTORED_EXCEPTION_HANDLER func;
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ULONG count;
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} VECTORED_HANDLER;
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static struct list vectored_exception_handlers = LIST_INIT(vectored_exception_handlers);
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static struct list vectored_continue_handlers = LIST_INIT(vectored_continue_handlers);
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static RTL_CRITICAL_SECTION vectored_handlers_section;
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static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &vectored_handlers_section,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": vectored_handlers_section") }
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};
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static RTL_CRITICAL_SECTION vectored_handlers_section = { &critsect_debug, -1, 0, 0, 0, 0 };
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static PRTL_EXCEPTION_FILTER unhandled_exception_filter;
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const char *debugstr_exception_code( DWORD code )
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{
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switch (code)
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{
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case CONTROL_C_EXIT: return "CONTROL_C_EXIT";
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case DBG_CONTROL_C: return "DBG_CONTROL_C";
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case DBG_PRINTEXCEPTION_C: return "DBG_PRINTEXCEPTION_C";
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case DBG_PRINTEXCEPTION_WIDE_C: return "DBG_PRINTEXCEPTION_WIDE_C";
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case EXCEPTION_ACCESS_VIOLATION: return "EXCEPTION_ACCESS_VIOLATION";
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case EXCEPTION_ARRAY_BOUNDS_EXCEEDED: return "EXCEPTION_ARRAY_BOUNDS_EXCEEDED";
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case EXCEPTION_BREAKPOINT: return "EXCEPTION_BREAKPOINT";
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case EXCEPTION_DATATYPE_MISALIGNMENT: return "EXCEPTION_DATATYPE_MISALIGNMENT";
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case EXCEPTION_FLT_DENORMAL_OPERAND: return "EXCEPTION_FLT_DENORMAL_OPERAND";
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case EXCEPTION_FLT_DIVIDE_BY_ZERO: return "EXCEPTION_FLT_DIVIDE_BY_ZERO";
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case EXCEPTION_FLT_INEXACT_RESULT: return "EXCEPTION_FLT_INEXACT_RESULT";
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case EXCEPTION_FLT_INVALID_OPERATION: return "EXCEPTION_FLT_INVALID_OPERATION";
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case EXCEPTION_FLT_OVERFLOW: return "EXCEPTION_FLT_OVERFLOW";
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case EXCEPTION_FLT_STACK_CHECK: return "EXCEPTION_FLT_STACK_CHECK";
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case EXCEPTION_FLT_UNDERFLOW: return "EXCEPTION_FLT_UNDERFLOW";
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case EXCEPTION_GUARD_PAGE: return "EXCEPTION_GUARD_PAGE";
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case EXCEPTION_ILLEGAL_INSTRUCTION: return "EXCEPTION_ILLEGAL_INSTRUCTION";
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case EXCEPTION_IN_PAGE_ERROR: return "EXCEPTION_IN_PAGE_ERROR";
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case EXCEPTION_INT_DIVIDE_BY_ZERO: return "EXCEPTION_INT_DIVIDE_BY_ZERO";
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case EXCEPTION_INT_OVERFLOW: return "EXCEPTION_INT_OVERFLOW";
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case EXCEPTION_INVALID_DISPOSITION: return "EXCEPTION_INVALID_DISPOSITION";
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case EXCEPTION_INVALID_HANDLE: return "EXCEPTION_INVALID_HANDLE";
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case EXCEPTION_NONCONTINUABLE_EXCEPTION: return "EXCEPTION_NONCONTINUABLE_EXCEPTION";
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case EXCEPTION_PRIV_INSTRUCTION: return "EXCEPTION_PRIV_INSTRUCTION";
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case EXCEPTION_SINGLE_STEP: return "EXCEPTION_SINGLE_STEP";
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case EXCEPTION_STACK_OVERFLOW: return "EXCEPTION_STACK_OVERFLOW";
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case EXCEPTION_WINE_ASSERTION: return "EXCEPTION_WINE_ASSERTION";
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case EXCEPTION_WINE_CXX_EXCEPTION: return "EXCEPTION_WINE_CXX_EXCEPTION";
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case EXCEPTION_WINE_NAME_THREAD: return "EXCEPTION_WINE_NAME_THREAD";
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case EXCEPTION_WINE_STUB: return "EXCEPTION_WINE_STUB";
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}
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return "unknown";
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}
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static VECTORED_HANDLER *add_vectored_handler( struct list *handler_list, ULONG first,
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PVECTORED_EXCEPTION_HANDLER func )
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{
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VECTORED_HANDLER *handler = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*handler) );
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if (handler)
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{
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handler->func = RtlEncodePointer( func );
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handler->count = 1;
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RtlEnterCriticalSection( &vectored_handlers_section );
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if (first) list_add_head( handler_list, &handler->entry );
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else list_add_tail( handler_list, &handler->entry );
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RtlLeaveCriticalSection( &vectored_handlers_section );
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}
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return handler;
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}
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static ULONG remove_vectored_handler( struct list *handler_list, VECTORED_HANDLER *handler )
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{
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struct list *ptr;
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ULONG ret = FALSE;
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RtlEnterCriticalSection( &vectored_handlers_section );
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LIST_FOR_EACH( ptr, handler_list )
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{
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VECTORED_HANDLER *curr_handler = LIST_ENTRY( ptr, VECTORED_HANDLER, entry );
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if (curr_handler == handler)
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{
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if (!--curr_handler->count) list_remove( ptr );
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else handler = NULL; /* don't free it yet */
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ret = TRUE;
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break;
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}
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}
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RtlLeaveCriticalSection( &vectored_handlers_section );
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if (ret) RtlFreeHeap( GetProcessHeap(), 0, handler );
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return ret;
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}
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/**********************************************************************
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* call_vectored_handlers
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*
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* Call the vectored handlers chain.
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*/
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LONG call_vectored_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
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{
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struct list *ptr;
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LONG ret = EXCEPTION_CONTINUE_SEARCH;
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EXCEPTION_POINTERS except_ptrs;
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PVECTORED_EXCEPTION_HANDLER func;
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VECTORED_HANDLER *handler, *to_free = NULL;
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except_ptrs.ExceptionRecord = rec;
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except_ptrs.ContextRecord = context;
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RtlEnterCriticalSection( &vectored_handlers_section );
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ptr = list_head( &vectored_exception_handlers );
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while (ptr)
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{
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handler = LIST_ENTRY( ptr, VECTORED_HANDLER, entry );
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handler->count++;
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func = RtlDecodePointer( handler->func );
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RtlLeaveCriticalSection( &vectored_handlers_section );
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RtlFreeHeap( GetProcessHeap(), 0, to_free );
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to_free = NULL;
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TRACE( "calling handler at %p code=%x flags=%x\n",
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func, rec->ExceptionCode, rec->ExceptionFlags );
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ret = func( &except_ptrs );
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TRACE( "handler at %p returned %x\n", func, ret );
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RtlEnterCriticalSection( &vectored_handlers_section );
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ptr = list_next( &vectored_exception_handlers, ptr );
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if (!--handler->count) /* removed during execution */
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{
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list_remove( &handler->entry );
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to_free = handler;
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}
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if (ret == EXCEPTION_CONTINUE_EXECUTION) break;
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}
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RtlLeaveCriticalSection( &vectored_handlers_section );
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RtlFreeHeap( GetProcessHeap(), 0, to_free );
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return ret;
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}
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/*******************************************************************
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* raise_status
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*
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* Implementation of RtlRaiseStatus with a specific exception record.
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*/
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void raise_status( NTSTATUS status, EXCEPTION_RECORD *rec )
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{
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EXCEPTION_RECORD ExceptionRec;
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ExceptionRec.ExceptionCode = status;
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ExceptionRec.ExceptionFlags = EH_NONCONTINUABLE;
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ExceptionRec.ExceptionRecord = rec;
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ExceptionRec.NumberParameters = 0;
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for (;;) RtlRaiseException( &ExceptionRec ); /* never returns */
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}
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/***********************************************************************
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* RtlRaiseStatus (NTDLL.@)
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*
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* Raise an exception with ExceptionCode = status
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*/
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void WINAPI RtlRaiseStatus( NTSTATUS status )
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{
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raise_status( status, NULL );
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}
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/*******************************************************************
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* KiRaiseUserExceptionDispatcher (NTDLL.@)
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*/
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NTSTATUS WINAPI KiRaiseUserExceptionDispatcher(void)
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{
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DWORD code = NtCurrentTeb()->ExceptionCode;
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EXCEPTION_RECORD rec = { code };
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RtlRaiseException( &rec );
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return code;
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}
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/*******************************************************************
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* RtlAddVectoredContinueHandler (NTDLL.@)
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*/
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PVOID WINAPI RtlAddVectoredContinueHandler( ULONG first, PVECTORED_EXCEPTION_HANDLER func )
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{
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return add_vectored_handler( &vectored_continue_handlers, first, func );
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}
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/*******************************************************************
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* RtlRemoveVectoredContinueHandler (NTDLL.@)
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*/
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ULONG WINAPI RtlRemoveVectoredContinueHandler( PVOID handler )
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{
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return remove_vectored_handler( &vectored_continue_handlers, handler );
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}
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/*******************************************************************
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* RtlAddVectoredExceptionHandler (NTDLL.@)
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*/
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PVOID WINAPI DECLSPEC_HOTPATCH RtlAddVectoredExceptionHandler( ULONG first, PVECTORED_EXCEPTION_HANDLER func )
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{
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return add_vectored_handler( &vectored_exception_handlers, first, func );
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}
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/*******************************************************************
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* RtlRemoveVectoredExceptionHandler (NTDLL.@)
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*/
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ULONG WINAPI RtlRemoveVectoredExceptionHandler( PVOID handler )
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{
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return remove_vectored_handler( &vectored_exception_handlers, handler );
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}
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/*******************************************************************
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* RtlSetUnhandledExceptionFilter (NTDLL.@)
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*/
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void WINAPI RtlSetUnhandledExceptionFilter( PRTL_EXCEPTION_FILTER filter )
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{
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unhandled_exception_filter = filter;
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}
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/*******************************************************************
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* call_unhandled_exception_filter
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*/
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LONG WINAPI call_unhandled_exception_filter( PEXCEPTION_POINTERS eptr )
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{
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if (!unhandled_exception_filter) return EXCEPTION_CONTINUE_SEARCH;
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return unhandled_exception_filter( eptr );
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}
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#if defined(__x86_64__) || defined(__arm__) || defined(__aarch64__)
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struct dynamic_unwind_entry
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{
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struct list entry;
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ULONG_PTR base;
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ULONG_PTR end;
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RUNTIME_FUNCTION *table;
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DWORD count;
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DWORD max_count;
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PGET_RUNTIME_FUNCTION_CALLBACK callback;
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PVOID context;
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};
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static struct list dynamic_unwind_list = LIST_INIT(dynamic_unwind_list);
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static RTL_CRITICAL_SECTION dynamic_unwind_section;
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static RTL_CRITICAL_SECTION_DEBUG dynamic_unwind_debug =
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{
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0, 0, &dynamic_unwind_section,
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{ &dynamic_unwind_debug.ProcessLocksList, &dynamic_unwind_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": dynamic_unwind_section") }
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};
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static RTL_CRITICAL_SECTION dynamic_unwind_section = { &dynamic_unwind_debug, -1, 0, 0, 0, 0 };
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static ULONG_PTR get_runtime_function_end( RUNTIME_FUNCTION *func, ULONG_PTR addr )
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{
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#ifdef __x86_64__
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return func->EndAddress;
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#elif defined(__arm__)
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if (func->u.s.Flag) return func->BeginAddress + func->u.s.FunctionLength * 2;
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else
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{
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struct unwind_info
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{
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DWORD function_length : 18;
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DWORD version : 2;
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DWORD x : 1;
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DWORD e : 1;
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DWORD f : 1;
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DWORD count : 5;
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DWORD words : 4;
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} *info = (struct unwind_info *)(addr + func->u.UnwindData);
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return func->BeginAddress + info->function_length * 2;
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}
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#else /* __aarch64__ */
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if (func->u.s.Flag) return func->BeginAddress + func->u.s.FunctionLength * 4;
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else
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{
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struct unwind_info
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{
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DWORD function_length : 18;
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DWORD version : 2;
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DWORD x : 1;
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DWORD e : 1;
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DWORD epilog : 5;
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DWORD codes : 5;
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} *info = (struct unwind_info *)(addr + func->u.UnwindData);
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return func->BeginAddress + info->function_length * 4;
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}
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#endif
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}
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/**********************************************************************
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* RtlAddFunctionTable (NTDLL.@)
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*/
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BOOLEAN CDECL RtlAddFunctionTable( RUNTIME_FUNCTION *table, DWORD count, ULONG_PTR addr )
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{
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struct dynamic_unwind_entry *entry;
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TRACE( "%p %u %lx\n", table, count, addr );
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/* NOTE: Windows doesn't check if table is aligned or a NULL pointer */
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entry = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*entry) );
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if (!entry)
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return FALSE;
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entry->base = addr;
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entry->end = addr + (count ? get_runtime_function_end( &table[count - 1], addr ) : 0);
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entry->table = table;
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entry->count = count;
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entry->max_count = 0;
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entry->callback = NULL;
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entry->context = NULL;
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RtlEnterCriticalSection( &dynamic_unwind_section );
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list_add_tail( &dynamic_unwind_list, &entry->entry );
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RtlLeaveCriticalSection( &dynamic_unwind_section );
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return TRUE;
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}
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|
|
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/**********************************************************************
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* RtlInstallFunctionTableCallback (NTDLL.@)
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*/
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BOOLEAN CDECL RtlInstallFunctionTableCallback( ULONG_PTR table, ULONG_PTR base, DWORD length,
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PGET_RUNTIME_FUNCTION_CALLBACK callback, PVOID context,
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PCWSTR dll )
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{
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struct dynamic_unwind_entry *entry;
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TRACE( "%lx %lx %d %p %p %s\n", table, base, length, callback, context, wine_dbgstr_w(dll) );
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/* NOTE: Windows doesn't check if the provided callback is a NULL pointer */
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/* both low-order bits must be set */
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if ((table & 0x3) != 0x3)
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return FALSE;
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entry = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*entry) );
|
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if (!entry)
|
|
return FALSE;
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entry->base = base;
|
|
entry->end = base + length;
|
|
entry->table = (RUNTIME_FUNCTION *)table;
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entry->count = 0;
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entry->max_count = 0;
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entry->callback = callback;
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entry->context = context;
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RtlEnterCriticalSection( &dynamic_unwind_section );
|
|
list_add_tail( &dynamic_unwind_list, &entry->entry );
|
|
RtlLeaveCriticalSection( &dynamic_unwind_section );
|
|
|
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return TRUE;
|
|
}
|
|
|
|
|
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/*************************************************************************
|
|
* RtlAddGrowableFunctionTable (NTDLL.@)
|
|
*/
|
|
DWORD WINAPI RtlAddGrowableFunctionTable( void **table, RUNTIME_FUNCTION *functions, DWORD count,
|
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DWORD max_count, ULONG_PTR base, ULONG_PTR end )
|
|
{
|
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struct dynamic_unwind_entry *entry;
|
|
|
|
TRACE( "%p, %p, %u, %u, %lx, %lx\n", table, functions, count, max_count, base, end );
|
|
|
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entry = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*entry) );
|
|
if (!entry)
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return STATUS_NO_MEMORY;
|
|
|
|
entry->base = base;
|
|
entry->end = end;
|
|
entry->table = functions;
|
|
entry->count = count;
|
|
entry->max_count = max_count;
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|
entry->callback = NULL;
|
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entry->context = NULL;
|
|
|
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RtlEnterCriticalSection( &dynamic_unwind_section );
|
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list_add_tail( &dynamic_unwind_list, &entry->entry );
|
|
RtlLeaveCriticalSection( &dynamic_unwind_section );
|
|
|
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*table = entry;
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlGrowFunctionTable (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlGrowFunctionTable( void *table, DWORD count )
|
|
{
|
|
struct dynamic_unwind_entry *entry;
|
|
|
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TRACE( "%p, %u\n", table, count );
|
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|
|
RtlEnterCriticalSection( &dynamic_unwind_section );
|
|
LIST_FOR_EACH_ENTRY( entry, &dynamic_unwind_list, struct dynamic_unwind_entry, entry )
|
|
{
|
|
if (entry == table)
|
|
{
|
|
if (count > entry->count && count <= entry->max_count)
|
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entry->count = count;
|
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break;
|
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}
|
|
}
|
|
RtlLeaveCriticalSection( &dynamic_unwind_section );
|
|
}
|
|
|
|
|
|
/*************************************************************************
|
|
* RtlDeleteGrowableFunctionTable (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlDeleteGrowableFunctionTable( void *table )
|
|
{
|
|
struct dynamic_unwind_entry *entry, *to_free = NULL;
|
|
|
|
TRACE( "%p\n", table );
|
|
|
|
RtlEnterCriticalSection( &dynamic_unwind_section );
|
|
LIST_FOR_EACH_ENTRY( entry, &dynamic_unwind_list, struct dynamic_unwind_entry, entry )
|
|
{
|
|
if (entry == table)
|
|
{
|
|
to_free = entry;
|
|
list_remove( &entry->entry );
|
|
break;
|
|
}
|
|
}
|
|
RtlLeaveCriticalSection( &dynamic_unwind_section );
|
|
|
|
RtlFreeHeap( GetProcessHeap(), 0, to_free );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlDeleteFunctionTable (NTDLL.@)
|
|
*/
|
|
BOOLEAN CDECL RtlDeleteFunctionTable( RUNTIME_FUNCTION *table )
|
|
{
|
|
struct dynamic_unwind_entry *entry, *to_free = NULL;
|
|
|
|
TRACE( "%p\n", table );
|
|
|
|
RtlEnterCriticalSection( &dynamic_unwind_section );
|
|
LIST_FOR_EACH_ENTRY( entry, &dynamic_unwind_list, struct dynamic_unwind_entry, entry )
|
|
{
|
|
if (entry->table == table)
|
|
{
|
|
to_free = entry;
|
|
list_remove( &entry->entry );
|
|
break;
|
|
}
|
|
}
|
|
RtlLeaveCriticalSection( &dynamic_unwind_section );
|
|
|
|
if (!to_free) return FALSE;
|
|
|
|
RtlFreeHeap( GetProcessHeap(), 0, to_free );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/* helper for lookup_function_info() */
|
|
static RUNTIME_FUNCTION *find_function_info( ULONG_PTR pc, ULONG_PTR base,
|
|
RUNTIME_FUNCTION *func, ULONG size )
|
|
{
|
|
int min = 0;
|
|
int max = size - 1;
|
|
|
|
while (min <= max)
|
|
{
|
|
#ifdef __x86_64__
|
|
int pos = (min + max) / 2;
|
|
if (pc < base + func[pos].BeginAddress) max = pos - 1;
|
|
else if (pc >= base + func[pos].EndAddress) min = pos + 1;
|
|
else
|
|
{
|
|
func += pos;
|
|
while (func->UnwindData & 1) /* follow chained entry */
|
|
func = (RUNTIME_FUNCTION *)(base + (func->UnwindData & ~1));
|
|
return func;
|
|
}
|
|
#elif defined(__arm__)
|
|
int pos = (min + max) / 2;
|
|
if (pc < base + (func[pos].BeginAddress & ~1)) max = pos - 1;
|
|
else if (pc >= base + get_runtime_function_end( &func[pos], base )) min = pos + 1;
|
|
else return func + pos;
|
|
#else /* __aarch64__ */
|
|
int pos = (min + max) / 2;
|
|
if (pc < base + func[pos].BeginAddress) max = pos - 1;
|
|
else if (pc >= base + get_runtime_function_end( &func[pos], base )) min = pos + 1;
|
|
else return func + pos;
|
|
#endif
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* lookup_function_info
|
|
*/
|
|
RUNTIME_FUNCTION *lookup_function_info( ULONG_PTR pc, ULONG_PTR *base, LDR_DATA_TABLE_ENTRY **module )
|
|
{
|
|
RUNTIME_FUNCTION *func = NULL;
|
|
struct dynamic_unwind_entry *entry;
|
|
ULONG size;
|
|
|
|
/* PE module or wine module */
|
|
if (!LdrFindEntryForAddress( (void *)pc, module ))
|
|
{
|
|
*base = (ULONG_PTR)(*module)->DllBase;
|
|
if ((func = RtlImageDirectoryEntryToData( (*module)->DllBase, TRUE,
|
|
IMAGE_DIRECTORY_ENTRY_EXCEPTION, &size )))
|
|
{
|
|
/* lookup in function table */
|
|
func = find_function_info( pc, (ULONG_PTR)(*module)->DllBase, func, size/sizeof(*func) );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
*module = NULL;
|
|
|
|
RtlEnterCriticalSection( &dynamic_unwind_section );
|
|
LIST_FOR_EACH_ENTRY( entry, &dynamic_unwind_list, struct dynamic_unwind_entry, entry )
|
|
{
|
|
if (pc >= entry->base && pc < entry->end)
|
|
{
|
|
*base = entry->base;
|
|
/* use callback or lookup in function table */
|
|
if (entry->callback)
|
|
func = entry->callback( pc, entry->context );
|
|
else
|
|
func = find_function_info( pc, entry->base, entry->table, entry->count );
|
|
break;
|
|
}
|
|
}
|
|
RtlLeaveCriticalSection( &dynamic_unwind_section );
|
|
}
|
|
|
|
return func;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* RtlLookupFunctionEntry (NTDLL.@)
|
|
*/
|
|
PRUNTIME_FUNCTION WINAPI RtlLookupFunctionEntry( ULONG_PTR pc, ULONG_PTR *base,
|
|
UNWIND_HISTORY_TABLE *table )
|
|
{
|
|
LDR_DATA_TABLE_ENTRY *module;
|
|
RUNTIME_FUNCTION *func;
|
|
|
|
/* FIXME: should use the history table to make things faster */
|
|
|
|
if (!(func = lookup_function_info( pc, base, &module )))
|
|
{
|
|
*base = 0;
|
|
WARN( "no exception table found for %lx\n", pc );
|
|
}
|
|
return func;
|
|
}
|
|
|
|
#endif /* __x86_64__ || __arm__ || __aarch64__ */
|
|
|
|
|
|
/*************************************************************
|
|
* _assert
|
|
*/
|
|
void __cdecl _assert( const char *str, const char *file, unsigned int line )
|
|
{
|
|
ERR( "%s:%u: Assertion failed %s\n", file, line, debugstr_a(str) );
|
|
RtlRaiseStatus( EXCEPTION_WINE_ASSERTION );
|
|
}
|
|
|
|
|
|
/*************************************************************
|
|
* __wine_spec_unimplemented_stub
|
|
*
|
|
* ntdll-specific implementation to avoid depending on kernel functions.
|
|
* Can be removed once ntdll.spec no longer contains stubs.
|
|
*/
|
|
void __cdecl __wine_spec_unimplemented_stub( const char *module, const char *function )
|
|
{
|
|
EXCEPTION_RECORD record;
|
|
|
|
record.ExceptionCode = EXCEPTION_WINE_STUB;
|
|
record.ExceptionFlags = EH_NONCONTINUABLE;
|
|
record.ExceptionRecord = NULL;
|
|
record.ExceptionAddress = __wine_spec_unimplemented_stub;
|
|
record.NumberParameters = 2;
|
|
record.ExceptionInformation[0] = (ULONG_PTR)module;
|
|
record.ExceptionInformation[1] = (ULONG_PTR)function;
|
|
for (;;) RtlRaiseException( &record );
|
|
}
|
|
|
|
|
|
/*************************************************************
|
|
* IsBadStringPtrA
|
|
*
|
|
* IsBadStringPtrA replacement for ntdll, to catch exception in debug traces.
|
|
*/
|
|
BOOL WINAPI IsBadStringPtrA( LPCSTR str, UINT_PTR max )
|
|
{
|
|
if (!str) return TRUE;
|
|
__TRY
|
|
{
|
|
volatile const char *p = str;
|
|
while (p != str + max) if (!*p++) break;
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
return TRUE;
|
|
}
|
|
__ENDTRY
|
|
return FALSE;
|
|
}
|
|
__ASM_STDCALL_IMPORT(IsBadStringPtrA,8)
|
|
|
|
/*************************************************************
|
|
* IsBadStringPtrW
|
|
*
|
|
* IsBadStringPtrW replacement for ntdll, to catch exception in debug traces.
|
|
*/
|
|
BOOL WINAPI IsBadStringPtrW( LPCWSTR str, UINT_PTR max )
|
|
{
|
|
if (!str) return TRUE;
|
|
__TRY
|
|
{
|
|
volatile const WCHAR *p = str;
|
|
while (p != str + max) if (!*p++) break;
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
return TRUE;
|
|
}
|
|
__ENDTRY
|
|
return FALSE;
|
|
}
|
|
__ASM_STDCALL_IMPORT(IsBadStringPtrW,8)
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlGetEnabledExtendedFeatures (NTDLL.@)
|
|
*/
|
|
ULONG64 WINAPI RtlGetEnabledExtendedFeatures(ULONG64 feature_mask)
|
|
{
|
|
return user_shared_data->XState.EnabledFeatures & feature_mask;
|
|
}
|
|
|
|
struct context_copy_range
|
|
{
|
|
ULONG start;
|
|
ULONG flag;
|
|
};
|
|
|
|
static const struct context_copy_range copy_ranges_amd64[] =
|
|
{
|
|
{0x38, 0x1}, {0x3a, 0x4}, { 0x42, 0x1}, { 0x48, 0x10}, { 0x78, 0x2}, { 0x98, 0x1},
|
|
{0xa0, 0x2}, {0xf8, 0x1}, {0x100, 0x8}, {0x2a0, 0}, {0x4b0, 0x10}, {0x4d0, 0}
|
|
};
|
|
|
|
static const struct context_copy_range copy_ranges_x86[] =
|
|
{
|
|
{ 0x4, 0x10}, {0x1c, 0x8}, {0x8c, 0x4}, {0x9c, 0x2}, {0xb4, 0x1}, {0xcc, 0x20}, {0x1ec, 0},
|
|
{0x2cc, 0},
|
|
};
|
|
|
|
static const struct context_parameters
|
|
{
|
|
ULONG arch_flag;
|
|
ULONG supported_flags;
|
|
ULONG context_size; /* sizeof(CONTEXT) */
|
|
ULONG legacy_size; /* Legacy context size */
|
|
ULONG context_ex_size; /* sizeof(CONTEXT_EX) */
|
|
ULONG alignment; /* Used when computing size of context. */
|
|
ULONG true_alignment; /* Used for actual alignment. */
|
|
ULONG flags_offset;
|
|
const struct context_copy_range *copy_ranges;
|
|
}
|
|
arch_context_parameters[] =
|
|
{
|
|
{
|
|
CONTEXT_AMD64,
|
|
0xd8000000 | CONTEXT_AMD64_ALL | CONTEXT_AMD64_XSTATE,
|
|
sizeof(AMD64_CONTEXT),
|
|
sizeof(AMD64_CONTEXT),
|
|
0x20,
|
|
7,
|
|
TYPE_ALIGNMENT(AMD64_CONTEXT) - 1,
|
|
offsetof(AMD64_CONTEXT,ContextFlags),
|
|
copy_ranges_amd64
|
|
},
|
|
{
|
|
CONTEXT_i386,
|
|
0xd8000000 | CONTEXT_I386_ALL | CONTEXT_I386_XSTATE,
|
|
sizeof(I386_CONTEXT),
|
|
offsetof(I386_CONTEXT,ExtendedRegisters),
|
|
0x18,
|
|
3,
|
|
TYPE_ALIGNMENT(I386_CONTEXT) - 1,
|
|
offsetof(I386_CONTEXT,ContextFlags),
|
|
copy_ranges_x86
|
|
},
|
|
};
|
|
|
|
static const struct context_parameters *context_get_parameters( ULONG context_flags )
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(arch_context_parameters); ++i)
|
|
{
|
|
if (context_flags & arch_context_parameters[i].arch_flag)
|
|
return context_flags & ~arch_context_parameters[i].supported_flags ? NULL : &arch_context_parameters[i];
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlGetExtendedContextLength2 (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI RtlGetExtendedContextLength2( ULONG context_flags, ULONG *length, ULONG64 compaction_mask )
|
|
{
|
|
const struct context_parameters *p;
|
|
ULONG64 supported_mask;
|
|
ULONG64 size;
|
|
|
|
TRACE( "context_flags %#x, length %p, compaction_mask %s.\n", context_flags, length,
|
|
wine_dbgstr_longlong(compaction_mask) );
|
|
|
|
if (!(p = context_get_parameters( context_flags )))
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
if (!(context_flags & 0x40))
|
|
{
|
|
*length = p->context_size + p->context_ex_size + p->alignment;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
if (!(supported_mask = RtlGetEnabledExtendedFeatures( ~(ULONG64)0) ))
|
|
return STATUS_NOT_SUPPORTED;
|
|
|
|
compaction_mask &= supported_mask;
|
|
|
|
size = p->context_size + p->context_ex_size + offsetof(XSTATE, YmmContext) + 63;
|
|
|
|
if (compaction_mask & supported_mask & (1 << XSTATE_AVX))
|
|
size += sizeof(YMMCONTEXT);
|
|
|
|
*length = size;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlGetExtendedContextLength (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI RtlGetExtendedContextLength( ULONG context_flags, ULONG *length )
|
|
{
|
|
return RtlGetExtendedContextLength2( context_flags, length, ~(ULONG64)0 );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlInitializeExtendedContext2 (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI RtlInitializeExtendedContext2( void *context, ULONG context_flags, CONTEXT_EX **context_ex,
|
|
ULONG64 compaction_mask )
|
|
{
|
|
const struct context_parameters *p;
|
|
ULONG64 supported_mask = 0;
|
|
CONTEXT_EX *c_ex;
|
|
|
|
TRACE( "context %p, context_flags %#x, context_ex %p, compaction_mask %s.\n",
|
|
context, context_flags, context_ex, wine_dbgstr_longlong(compaction_mask));
|
|
|
|
if (!(p = context_get_parameters( context_flags )))
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
if ((context_flags & 0x40) && !(supported_mask = RtlGetEnabledExtendedFeatures( ~(ULONG64)0 )))
|
|
return STATUS_NOT_SUPPORTED;
|
|
|
|
context = (void *)(((ULONG_PTR)context + p->true_alignment) & ~(ULONG_PTR)p->true_alignment);
|
|
*(ULONG *)((BYTE *)context + p->flags_offset) = context_flags;
|
|
|
|
*context_ex = c_ex = (CONTEXT_EX *)((BYTE *)context + p->context_size);
|
|
c_ex->Legacy.Offset = c_ex->All.Offset = -(LONG)p->context_size;
|
|
c_ex->Legacy.Length = context_flags & 0x20 ? p->context_size : p->legacy_size;
|
|
|
|
if (context_flags & 0x40)
|
|
{
|
|
XSTATE *xs;
|
|
|
|
compaction_mask &= supported_mask;
|
|
|
|
xs = (XSTATE *)(((ULONG_PTR)c_ex + p->context_ex_size + 63) & ~(ULONG_PTR)63);
|
|
|
|
c_ex->XState.Offset = (ULONG_PTR)xs - (ULONG_PTR)c_ex;
|
|
c_ex->XState.Length = offsetof(XSTATE, YmmContext);
|
|
compaction_mask &= supported_mask;
|
|
|
|
if (compaction_mask & (1 << XSTATE_AVX))
|
|
c_ex->XState.Length += sizeof(YMMCONTEXT);
|
|
|
|
memset( xs, 0, c_ex->XState.Length );
|
|
if (user_shared_data->XState.CompactionEnabled)
|
|
xs->CompactionMask = ((ULONG64)1 << 63) | compaction_mask;
|
|
|
|
c_ex->All.Length = p->context_size + c_ex->XState.Offset + c_ex->XState.Length;
|
|
}
|
|
else
|
|
{
|
|
c_ex->XState.Offset = 25; /* According to the tests, it is just 25 if CONTEXT_XSTATE is not specified. */
|
|
c_ex->XState.Length = 0;
|
|
c_ex->All.Length = p->context_size + 24; /* sizeof(CONTEXT_EX) minus 8 alignment bytes on x64. */
|
|
}
|
|
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlInitializeExtendedContext (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI RtlInitializeExtendedContext( void *context, ULONG context_flags, CONTEXT_EX **context_ex )
|
|
{
|
|
return RtlInitializeExtendedContext2( context, context_flags, context_ex, ~(ULONG64)0 );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlLocateExtendedFeature2 (NTDLL.@)
|
|
*/
|
|
void * WINAPI RtlLocateExtendedFeature2( CONTEXT_EX *context_ex, ULONG feature_id,
|
|
XSTATE_CONFIGURATION *xstate_config, ULONG *length )
|
|
{
|
|
TRACE( "context_ex %p, feature_id %u, xstate_config %p, length %p.\n",
|
|
context_ex, feature_id, xstate_config, length );
|
|
|
|
if (!xstate_config)
|
|
{
|
|
FIXME( "NULL xstate_config.\n" );
|
|
return NULL;
|
|
}
|
|
|
|
if (xstate_config != &user_shared_data->XState)
|
|
{
|
|
FIXME( "Custom xstate configuration is not supported.\n" );
|
|
return NULL;
|
|
}
|
|
|
|
if (feature_id != XSTATE_AVX)
|
|
return NULL;
|
|
|
|
if (length)
|
|
*length = sizeof(YMMCONTEXT);
|
|
|
|
if (context_ex->XState.Length < sizeof(XSTATE))
|
|
return NULL;
|
|
|
|
return (BYTE *)context_ex + context_ex->XState.Offset + offsetof(XSTATE, YmmContext);
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlLocateExtendedFeature (NTDLL.@)
|
|
*/
|
|
void * WINAPI RtlLocateExtendedFeature( CONTEXT_EX *context_ex, ULONG feature_id,
|
|
ULONG *length )
|
|
{
|
|
return RtlLocateExtendedFeature2( context_ex, feature_id, &user_shared_data->XState, length );
|
|
}
|
|
|
|
/**********************************************************************
|
|
* RtlLocateLegacyContext (NTDLL.@)
|
|
*/
|
|
void * WINAPI RtlLocateLegacyContext( CONTEXT_EX *context_ex, ULONG *length )
|
|
{
|
|
if (length)
|
|
*length = context_ex->Legacy.Length;
|
|
|
|
return (BYTE *)context_ex + context_ex->Legacy.Offset;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* RtlSetExtendedFeaturesMask (NTDLL.@)
|
|
*/
|
|
void WINAPI RtlSetExtendedFeaturesMask( CONTEXT_EX *context_ex, ULONG64 feature_mask )
|
|
{
|
|
XSTATE *xs = (XSTATE *)((BYTE *)context_ex + context_ex->XState.Offset);
|
|
|
|
xs->Mask = RtlGetEnabledExtendedFeatures( feature_mask ) & ~(ULONG64)3;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlGetExtendedFeaturesMask (NTDLL.@)
|
|
*/
|
|
ULONG64 WINAPI RtlGetExtendedFeaturesMask( CONTEXT_EX *context_ex )
|
|
{
|
|
XSTATE *xs = (XSTATE *)((BYTE *)context_ex + context_ex->XState.Offset);
|
|
|
|
return xs->Mask & ~(ULONG64)3;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* RtlCopyContext (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI RtlCopyContext( CONTEXT *dst, DWORD context_flags, CONTEXT *src )
|
|
{
|
|
DWORD context_size, arch_flag, flags_offset, dst_flags, src_flags;
|
|
static const DWORD arch_mask = CONTEXT_i386 | CONTEXT_AMD64;
|
|
BYTE *d, *s;
|
|
|
|
TRACE("dst %p, context_flags %#x, src %p.\n", dst, context_flags, src);
|
|
|
|
if (context_flags & 0x40 && !RtlGetEnabledExtendedFeatures( ~(ULONG64)0 )) return STATUS_NOT_SUPPORTED;
|
|
|
|
arch_flag = context_flags & arch_mask;
|
|
switch (arch_flag)
|
|
{
|
|
case CONTEXT_i386:
|
|
context_size = sizeof( I386_CONTEXT );
|
|
flags_offset = offsetof( I386_CONTEXT, ContextFlags );
|
|
break;
|
|
case CONTEXT_AMD64:
|
|
context_size = sizeof( AMD64_CONTEXT );
|
|
flags_offset = offsetof( AMD64_CONTEXT, ContextFlags );
|
|
break;
|
|
default:
|
|
return STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
d = (BYTE *)dst;
|
|
s = (BYTE *)src;
|
|
dst_flags = *(DWORD *)(d + flags_offset);
|
|
src_flags = *(DWORD *)(s + flags_offset);
|
|
|
|
if ((dst_flags & arch_mask) != arch_flag || (src_flags & arch_mask) != arch_flag)
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
context_flags &= src_flags;
|
|
if (context_flags & ~dst_flags & 0x40) return STATUS_BUFFER_OVERFLOW;
|
|
|
|
return RtlCopyExtendedContext( (CONTEXT_EX *)(d + context_size), context_flags,
|
|
(CONTEXT_EX *)(s + context_size) );
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* RtlCopyExtendedContext (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI RtlCopyExtendedContext( CONTEXT_EX *dst, ULONG context_flags, CONTEXT_EX *src )
|
|
{
|
|
const struct context_copy_range *range;
|
|
const struct context_parameters *p;
|
|
XSTATE *dst_xs, *src_xs;
|
|
ULONG64 feature_mask;
|
|
unsigned int start;
|
|
BYTE *d, *s;
|
|
|
|
TRACE( "dst %p, context_flags %#x, src %p.\n", dst, context_flags, src );
|
|
|
|
if (!(p = context_get_parameters( context_flags )))
|
|
return STATUS_INVALID_PARAMETER;
|
|
|
|
if (!(feature_mask = RtlGetEnabledExtendedFeatures( ~(ULONG64)0 )) && context_flags & 0x40)
|
|
return STATUS_NOT_SUPPORTED;
|
|
|
|
d = RtlLocateLegacyContext( dst, NULL );
|
|
s = RtlLocateLegacyContext( src, NULL );
|
|
|
|
*((ULONG *)(d + p->flags_offset)) |= context_flags;
|
|
|
|
start = 0;
|
|
range = p->copy_ranges;
|
|
do
|
|
{
|
|
if (range->flag & context_flags)
|
|
{
|
|
if (!start)
|
|
start = range->start;
|
|
}
|
|
else if (start)
|
|
{
|
|
memcpy( d + start, s + start, range->start - start );
|
|
start = 0;
|
|
}
|
|
}
|
|
while (range++->start != p->context_size);
|
|
|
|
if (!(context_flags & 0x40))
|
|
return STATUS_SUCCESS;
|
|
|
|
if (dst->XState.Length < offsetof(XSTATE, YmmContext))
|
|
return STATUS_BUFFER_OVERFLOW;
|
|
|
|
dst_xs = (XSTATE *)((BYTE *)dst + dst->XState.Offset);
|
|
src_xs = (XSTATE *)((BYTE *)src + src->XState.Offset);
|
|
|
|
memset(dst_xs, 0, offsetof(XSTATE, YmmContext));
|
|
dst_xs->Mask = (src_xs->Mask & ~(ULONG64)3) & feature_mask;
|
|
dst_xs->CompactionMask = user_shared_data->XState.CompactionEnabled
|
|
? ((ULONG64)1 << 63) | (src_xs->CompactionMask & feature_mask) : 0;
|
|
|
|
if (dst_xs->Mask & 4 && src->XState.Length >= sizeof(XSTATE) && dst->XState.Length >= sizeof(XSTATE))
|
|
memcpy( &dst_xs->YmmContext, &src_xs->YmmContext, sizeof(dst_xs->YmmContext) );
|
|
return STATUS_SUCCESS;
|
|
}
|