2012-03-13 15:40:27 +01:00
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/*
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* msvcrt C++ exception handling
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*
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* Copyright 2011 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 "config.h"
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#include "wine/port.h"
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#ifdef __x86_64__
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#include <stdarg.h>
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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 "winbase.h"
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#include "winternl.h"
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#include "msvcrt.h"
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#include "wine/exception.h"
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#include "excpt.h"
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#include "wine/debug.h"
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#include "cppexcept.h"
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WINE_DEFAULT_DEBUG_CHANNEL(seh);
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2012-03-13 15:50:40 +01:00
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struct _DISPATCHER_CONTEXT;
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typedef LONG (WINAPI *PC_LANGUAGE_EXCEPTION_HANDLER)( EXCEPTION_POINTERS *ptrs, ULONG64 frame );
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typedef EXCEPTION_DISPOSITION (WINAPI *PEXCEPTION_ROUTINE)( EXCEPTION_RECORD *rec,
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ULONG64 frame,
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CONTEXT *context,
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struct _DISPATCHER_CONTEXT *dispatch );
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typedef struct _DISPATCHER_CONTEXT
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{
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ULONG64 ControlPc;
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ULONG64 ImageBase;
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PRUNTIME_FUNCTION FunctionEntry;
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ULONG64 EstablisherFrame;
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ULONG64 TargetIp;
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PCONTEXT ContextRecord;
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PEXCEPTION_ROUTINE LanguageHandler;
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PVOID HandlerData;
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PUNWIND_HISTORY_TABLE HistoryTable;
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ULONG ScopeIndex;
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} DISPATCHER_CONTEXT;
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2016-03-21 18:23:34 +01:00
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typedef struct
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{
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int prev;
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UINT handler;
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} unwind_info;
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typedef struct
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{
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UINT flags;
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UINT type_info;
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int offset;
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UINT handler;
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2016-03-28 20:11:50 +02:00
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UINT frame;
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2016-03-21 18:23:34 +01:00
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} catchblock_info;
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2016-03-28 20:11:50 +02:00
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#define TYPE_FLAG_CONST 1
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#define TYPE_FLAG_VOLATILE 2
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#define TYPE_FLAG_REFERENCE 8
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2016-03-21 18:23:34 +01:00
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typedef struct
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{
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int start_level;
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int end_level;
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int catch_level;
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int catchblock_count;
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UINT catchblock;
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} tryblock_info;
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2016-03-28 20:11:50 +02:00
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typedef struct
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{
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int ip;
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int state;
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} ipmap_info;
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2016-03-21 18:23:34 +01:00
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typedef struct __cxx_function_descr
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{
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UINT magic;
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UINT unwind_count;
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UINT unwind_table;
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UINT tryblock_count;
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UINT tryblock;
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UINT ipmap_count;
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UINT ipmap;
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UINT unwind_help;
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UINT expect_list;
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UINT flags;
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} cxx_function_descr;
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2017-06-14 11:58:45 +02:00
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typedef struct
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{
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cxx_frame_info frame_info;
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BOOL rethrow;
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} cxx_catch_ctx;
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2017-05-19 19:16:07 +02:00
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typedef struct
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{
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ULONG64 dest_frame;
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ULONG64 orig_frame;
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DISPATCHER_CONTEXT *dispatch;
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const cxx_function_descr *descr;
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} se_translator_ctx;
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2016-03-21 18:23:34 +01:00
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static inline void* rva_to_ptr(UINT rva, ULONG64 base)
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{
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return rva ? (void*)(base+rva) : NULL;
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}
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static inline void dump_type(UINT type_rva, ULONG64 base)
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{
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const cxx_type_info *type = rva_to_ptr(type_rva, base);
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TRACE("flags %x type %x %s offsets %d,%d,%d size %d copy ctor %x(%p)\n",
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type->flags, type->type_info, dbgstr_type_info(rva_to_ptr(type->type_info, base)),
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type->offsets.this_offset, type->offsets.vbase_descr, type->offsets.vbase_offset,
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type->size, type->copy_ctor, rva_to_ptr(type->copy_ctor, base));
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}
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static void dump_exception_type(const cxx_exception_type *type, ULONG64 base)
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{
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const cxx_type_info_table *type_info_table = rva_to_ptr(type->type_info_table, base);
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UINT i;
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TRACE("flags %x destr %x(%p) handler %x(%p) type info %x(%p)\n",
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type->flags, type->destructor, rva_to_ptr(type->destructor, base),
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type->custom_handler, rva_to_ptr(type->custom_handler, base),
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type->type_info_table, type_info_table);
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for (i = 0; i < type_info_table->count; i++)
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{
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TRACE(" %d: ", i);
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dump_type(type_info_table->info[i], base);
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}
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}
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static void dump_function_descr(const cxx_function_descr *descr, ULONG64 image_base)
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{
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unwind_info *unwind_table = rva_to_ptr(descr->unwind_table, image_base);
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tryblock_info *tryblock = rva_to_ptr(descr->tryblock, image_base);
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2016-03-28 20:11:50 +02:00
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ipmap_info *ipmap = rva_to_ptr(descr->ipmap, image_base);
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2016-03-21 18:23:34 +01:00
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UINT i, j;
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TRACE("magic %x\n", descr->magic);
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TRACE("unwind table: %x(%p) %d\n", descr->unwind_table, unwind_table, descr->unwind_count);
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for (i=0; i<descr->unwind_count; i++)
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{
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TRACE(" %d: prev %d func %x(%p)\n", i, unwind_table[i].prev,
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unwind_table[i].handler, rva_to_ptr(unwind_table[i].handler, image_base));
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}
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TRACE("try table: %x(%p) %d\n", descr->tryblock, tryblock, descr->tryblock_count);
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for (i=0; i<descr->tryblock_count; i++)
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{
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catchblock_info *catchblock = rva_to_ptr(tryblock[i].catchblock, image_base);
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2016-03-28 20:11:50 +02:00
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TRACE(" %d: start %d end %d catchlevel %d catch %x(%p) %d\n", i,
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2016-03-21 18:23:34 +01:00
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tryblock[i].start_level, tryblock[i].end_level,
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tryblock[i].catch_level, tryblock[i].catchblock,
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catchblock, tryblock[i].catchblock_count);
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for (j=0; j<tryblock[i].catchblock_count; j++)
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{
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2016-03-28 20:11:50 +02:00
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TRACE(" %d: flags %x offset %d handler %x(%p) frame %x type %x %s\n",
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j, catchblock[j].flags, catchblock[j].offset, catchblock[j].handler,
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rva_to_ptr(catchblock[j].handler, image_base), catchblock[j].frame,
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catchblock[j].type_info,
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dbgstr_type_info(rva_to_ptr(catchblock[j].type_info, image_base)));
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2016-03-21 18:23:34 +01:00
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}
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}
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2016-03-28 20:11:50 +02:00
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TRACE("ipmap: %x(%p) %d\n", descr->ipmap, ipmap, descr->ipmap_count);
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for (i=0; i<descr->ipmap_count; i++)
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{
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TRACE(" %d: ip %x state %d\n", i, ipmap[i].ip, ipmap[i].state);
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}
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2016-03-21 18:23:34 +01:00
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TRACE("unwind_help %d\n", descr->unwind_help);
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2016-03-28 20:12:18 +02:00
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if (descr->magic <= CXX_FRAME_MAGIC_VC6) return;
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2016-03-21 18:23:34 +01:00
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TRACE("expect list: %x\n", descr->expect_list);
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2016-03-28 20:12:18 +02:00
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if (descr->magic <= CXX_FRAME_MAGIC_VC7) return;
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2016-03-21 18:23:34 +01:00
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TRACE("flags: %08x\n", descr->flags);
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}
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2016-03-28 20:12:10 +02:00
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static inline int ip_to_state(ipmap_info *ipmap, UINT count, int ip)
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{
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UINT low = 0, high = count-1, med;
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while (low < high) {
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med = low + (high-low)/2;
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if (ipmap[med].ip <= ip && ipmap[med+1].ip > ip)
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{
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low = med;
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break;
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}
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if (ipmap[med].ip < ip) low = med+1;
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else high = med-1;
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}
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TRACE("%x -> %d\n", ip, ipmap[low].state);
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return ipmap[low].state;
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}
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/* check if the exception type is caught by a given catch block, and return the type that matched */
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static const cxx_type_info *find_caught_type(cxx_exception_type *exc_type, ULONG64 exc_base,
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const type_info *catch_ti, UINT catch_flags)
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{
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const cxx_type_info_table *type_info_table = rva_to_ptr(exc_type->type_info_table, exc_base);
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UINT i;
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for (i = 0; i < type_info_table->count; i++)
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{
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const cxx_type_info *type = rva_to_ptr(type_info_table->info[i], exc_base);
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const type_info *ti = rva_to_ptr(type->type_info, exc_base);
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if (!catch_ti) return type; /* catch(...) matches any type */
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if (catch_ti != ti)
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{
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if (strcmp( catch_ti->mangled, ti->mangled )) continue;
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}
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/* type is the same, now check the flags */
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if ((exc_type->flags & TYPE_FLAG_CONST) &&
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!(catch_flags & TYPE_FLAG_CONST)) continue;
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if ((exc_type->flags & TYPE_FLAG_VOLATILE) &&
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!(catch_flags & TYPE_FLAG_VOLATILE)) continue;
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return type; /* it matched */
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}
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return NULL;
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}
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static inline void copy_exception(void *object, ULONG64 frame,
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DISPATCHER_CONTEXT *dispatch,
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const catchblock_info *catchblock,
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const cxx_type_info *type)
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{
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const type_info *catch_ti = rva_to_ptr(catchblock->type_info, dispatch->ImageBase);
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void **dest = rva_to_ptr(catchblock->offset, frame);
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if (!catch_ti || !catch_ti->mangled[0]) return;
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if (!catchblock->offset) return;
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if (catchblock->flags & TYPE_FLAG_REFERENCE)
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{
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*dest = get_this_pointer(&type->offsets, object);
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}
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else if (type->flags & CLASS_IS_SIMPLE_TYPE)
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{
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memmove(dest, object, type->size);
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/* if it is a pointer, adjust it */
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if (type->size == sizeof(void*)) *dest = get_this_pointer(&type->offsets, *dest);
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}
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else /* copy the object */
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{
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if (type->copy_ctor)
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{
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if (type->flags & CLASS_HAS_VIRTUAL_BASE_CLASS)
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{
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void (__cdecl *copy_ctor)(void*, void*, int) =
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rva_to_ptr(type->copy_ctor, dispatch->ImageBase);
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copy_ctor(dest, get_this_pointer(&type->offsets, object), 1);
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}
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else
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{
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void (__cdecl *copy_ctor)(void*, void*) =
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rva_to_ptr(type->copy_ctor, dispatch->ImageBase);
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copy_ctor(dest, get_this_pointer(&type->offsets, object));
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}
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}
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else
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memmove(dest, get_this_pointer(&type->offsets,object), type->size);
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}
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}
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static void cxx_local_unwind(ULONG64 frame, DISPATCHER_CONTEXT *dispatch,
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const cxx_function_descr *descr, int last_level)
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{
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const unwind_info *unwind_table = rva_to_ptr(descr->unwind_table, dispatch->ImageBase);
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void (__cdecl *handler)(ULONG64 unk, ULONG64 rbp);
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int *unwind_help = rva_to_ptr(descr->unwind_help, frame);
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int trylevel;
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if (unwind_help[0] == -2)
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{
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trylevel = ip_to_state(rva_to_ptr(descr->ipmap, dispatch->ImageBase),
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descr->ipmap_count, dispatch->ControlPc-dispatch->ImageBase);
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}
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else
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{
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trylevel = unwind_help[0];
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}
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TRACE("current level: %d, last level: %d\n", trylevel, last_level);
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2017-06-14 11:59:05 +02:00
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while (trylevel > last_level)
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2016-03-28 20:12:10 +02:00
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{
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if (trylevel<0 || trylevel>=descr->unwind_count)
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{
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ERR("invalid trylevel %d\n", trylevel);
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MSVCRT_terminate();
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}
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handler = rva_to_ptr(unwind_table[trylevel].handler, dispatch->ImageBase);
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if (handler)
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{
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TRACE("handler: %p\n", handler);
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handler(0, frame);
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}
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trylevel = unwind_table[trylevel].prev;
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}
|
2017-06-14 11:59:05 +02:00
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unwind_help[0] = trylevel;
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2016-03-28 20:12:10 +02:00
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}
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|
2017-06-14 11:58:45 +02:00
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static LONG CALLBACK cxx_rethrow_filter(PEXCEPTION_POINTERS eptrs, void *c)
|
2017-06-14 11:58:20 +02:00
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{
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EXCEPTION_RECORD *rec = eptrs->ExceptionRecord;
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2017-06-14 11:58:45 +02:00
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thread_data_t *data = msvcrt_get_thread_data();
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cxx_catch_ctx *ctx = c;
|
2017-06-14 11:58:20 +02:00
|
|
|
|
|
|
|
if (rec->ExceptionCode != CXX_EXCEPTION)
|
|
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
if (!rec->ExceptionInformation[1] && !rec->ExceptionInformation[2])
|
|
|
|
return EXCEPTION_EXECUTE_HANDLER;
|
2017-06-14 11:58:45 +02:00
|
|
|
if (rec->ExceptionInformation[1] == data->exc_record->ExceptionInformation[1])
|
|
|
|
ctx->rethrow = TRUE;
|
2017-06-14 11:58:20 +02:00
|
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
}
|
|
|
|
|
2017-06-14 11:58:45 +02:00
|
|
|
static void CALLBACK cxx_catch_cleanup(BOOL normal, void *c)
|
|
|
|
{
|
|
|
|
cxx_catch_ctx *ctx = c;
|
|
|
|
__CxxUnregisterExceptionObject(&ctx->frame_info, ctx->rethrow);
|
|
|
|
}
|
|
|
|
|
2017-06-14 11:58:20 +02:00
|
|
|
static void* WINAPI call_catch_block(EXCEPTION_RECORD *rec)
|
2016-03-28 20:12:10 +02:00
|
|
|
{
|
|
|
|
ULONG64 frame = rec->ExceptionInformation[1];
|
|
|
|
const cxx_function_descr *descr = (void*)rec->ExceptionInformation[2];
|
|
|
|
EXCEPTION_RECORD *prev_rec = (void*)rec->ExceptionInformation[4];
|
|
|
|
void* (__cdecl *handler)(ULONG64 unk, ULONG64 rbp) = (void*)rec->ExceptionInformation[5];
|
|
|
|
int *unwind_help = rva_to_ptr(descr->unwind_help, frame);
|
2017-06-14 11:58:45 +02:00
|
|
|
cxx_catch_ctx ctx;
|
2017-06-14 11:58:20 +02:00
|
|
|
void *ret_addr = NULL;
|
2016-03-28 20:12:10 +02:00
|
|
|
|
|
|
|
TRACE("calling handler %p\n", handler);
|
|
|
|
|
2017-06-14 11:58:45 +02:00
|
|
|
ctx.rethrow = FALSE;
|
|
|
|
__CxxRegisterExceptionObject(&prev_rec, &ctx.frame_info);
|
2017-06-14 11:58:20 +02:00
|
|
|
__TRY
|
|
|
|
{
|
2017-06-14 11:58:45 +02:00
|
|
|
__TRY
|
|
|
|
{
|
|
|
|
ret_addr = handler(0, frame);
|
|
|
|
}
|
|
|
|
__EXCEPT_CTX(cxx_rethrow_filter, &ctx)
|
|
|
|
{
|
|
|
|
TRACE("detect rethrow: exception code: %x\n", prev_rec->ExceptionCode);
|
|
|
|
ctx.rethrow = TRUE;
|
2017-06-14 11:58:20 +02:00
|
|
|
|
2017-06-14 11:58:45 +02:00
|
|
|
RaiseException(prev_rec->ExceptionCode, prev_rec->ExceptionFlags,
|
|
|
|
prev_rec->NumberParameters, prev_rec->ExceptionInformation);
|
|
|
|
}
|
|
|
|
__ENDTRY
|
2017-06-14 11:58:20 +02:00
|
|
|
}
|
2017-06-14 11:58:45 +02:00
|
|
|
__FINALLY_CTX(cxx_catch_cleanup, &ctx)
|
|
|
|
|
2016-03-28 20:12:10 +02:00
|
|
|
unwind_help[0] = -2;
|
|
|
|
unwind_help[1] = -1;
|
|
|
|
return ret_addr;
|
|
|
|
}
|
|
|
|
|
2017-04-20 15:21:14 +02:00
|
|
|
static inline BOOL cxx_is_consolidate(const EXCEPTION_RECORD *rec)
|
|
|
|
{
|
|
|
|
return rec->ExceptionCode==STATUS_UNWIND_CONSOLIDATE && rec->NumberParameters==6 &&
|
|
|
|
rec->ExceptionInformation[0]==(ULONG_PTR)call_catch_block;
|
|
|
|
}
|
|
|
|
|
2016-03-28 20:12:10 +02:00
|
|
|
static inline void find_catch_block(EXCEPTION_RECORD *rec, ULONG64 frame,
|
|
|
|
DISPATCHER_CONTEXT *dispatch,
|
|
|
|
const cxx_function_descr *descr,
|
2017-04-12 15:08:39 +02:00
|
|
|
cxx_exception_type *info, ULONG64 orig_frame)
|
2016-03-28 20:12:10 +02:00
|
|
|
{
|
|
|
|
ULONG64 exc_base = (rec->NumberParameters == 4 ? rec->ExceptionInformation[3] : 0);
|
|
|
|
int trylevel = ip_to_state(rva_to_ptr(descr->ipmap, dispatch->ImageBase),
|
|
|
|
descr->ipmap_count, dispatch->ControlPc-dispatch->ImageBase);
|
2016-07-05 14:28:45 +02:00
|
|
|
const tryblock_info *in_catch;
|
2016-03-28 20:12:10 +02:00
|
|
|
EXCEPTION_RECORD catch_record;
|
|
|
|
CONTEXT context;
|
|
|
|
UINT i, j;
|
|
|
|
INT *unwind_help;
|
|
|
|
|
2016-07-05 14:28:45 +02:00
|
|
|
for (i=descr->tryblock_count; i>0; i--)
|
|
|
|
{
|
|
|
|
in_catch = rva_to_ptr(descr->tryblock, dispatch->ImageBase);
|
|
|
|
in_catch = &in_catch[i-1];
|
|
|
|
|
|
|
|
if (trylevel>in_catch->end_level && trylevel<=in_catch->catch_level)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (!i)
|
|
|
|
in_catch = NULL;
|
|
|
|
|
2016-03-28 20:12:10 +02:00
|
|
|
unwind_help = rva_to_ptr(descr->unwind_help, orig_frame);
|
2016-07-05 14:28:45 +02:00
|
|
|
if (trylevel > unwind_help[1])
|
|
|
|
unwind_help[0] = unwind_help[1] = trylevel;
|
|
|
|
else
|
|
|
|
trylevel = unwind_help[1];
|
|
|
|
TRACE("current trylevel: %d\n", trylevel);
|
2016-03-28 20:12:10 +02:00
|
|
|
|
|
|
|
for (i=0; i<descr->tryblock_count; i++)
|
|
|
|
{
|
|
|
|
const tryblock_info *tryblock = rva_to_ptr(descr->tryblock, dispatch->ImageBase);
|
|
|
|
tryblock = &tryblock[i];
|
|
|
|
|
|
|
|
if (trylevel < tryblock->start_level) continue;
|
|
|
|
if (trylevel > tryblock->end_level) continue;
|
|
|
|
|
2016-07-05 14:28:45 +02:00
|
|
|
if (in_catch)
|
|
|
|
{
|
|
|
|
if(tryblock->start_level <= in_catch->end_level) continue;
|
|
|
|
if(tryblock->end_level > in_catch->catch_level) continue;
|
|
|
|
}
|
|
|
|
|
2016-03-28 20:12:10 +02:00
|
|
|
/* got a try block */
|
|
|
|
for (j=0; j<tryblock->catchblock_count; j++)
|
|
|
|
{
|
|
|
|
const catchblock_info *catchblock = rva_to_ptr(tryblock->catchblock, dispatch->ImageBase);
|
|
|
|
catchblock = &catchblock[j];
|
|
|
|
|
|
|
|
if (info)
|
|
|
|
{
|
|
|
|
const cxx_type_info *type = find_caught_type(info, exc_base,
|
|
|
|
rva_to_ptr(catchblock->type_info, dispatch->ImageBase),
|
|
|
|
catchblock->flags);
|
|
|
|
if (!type) continue;
|
|
|
|
|
|
|
|
TRACE("matched type %p in tryblock %d catchblock %d\n", type, i, j);
|
|
|
|
|
|
|
|
/* copy the exception to its destination on the stack */
|
|
|
|
copy_exception((void*)rec->ExceptionInformation[1],
|
|
|
|
orig_frame, dispatch, catchblock, type);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* no CXX_EXCEPTION only proceed with a catch(...) block*/
|
|
|
|
if (catchblock->type_info)
|
|
|
|
continue;
|
|
|
|
TRACE("found catch(...) block\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* unwind stack and call catch */
|
|
|
|
memset(&catch_record, 0, sizeof(catch_record));
|
|
|
|
catch_record.ExceptionCode = STATUS_UNWIND_CONSOLIDATE;
|
|
|
|
catch_record.ExceptionFlags = EXCEPTION_NONCONTINUABLE;
|
|
|
|
catch_record.NumberParameters = 6;
|
|
|
|
catch_record.ExceptionInformation[0] = (ULONG_PTR)call_catch_block;
|
|
|
|
catch_record.ExceptionInformation[1] = orig_frame;
|
|
|
|
catch_record.ExceptionInformation[2] = (ULONG_PTR)descr;
|
|
|
|
catch_record.ExceptionInformation[3] = tryblock->start_level;
|
|
|
|
catch_record.ExceptionInformation[4] = (ULONG_PTR)rec;
|
|
|
|
catch_record.ExceptionInformation[5] =
|
|
|
|
(ULONG_PTR)rva_to_ptr(catchblock->handler, dispatch->ImageBase);
|
2016-07-05 14:28:45 +02:00
|
|
|
RtlUnwindEx((void*)frame, (void*)dispatch->ControlPc, &catch_record, NULL, &context, NULL);
|
2016-03-28 20:12:10 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
TRACE("no matching catch block found\n");
|
|
|
|
}
|
|
|
|
|
2017-05-19 19:16:07 +02:00
|
|
|
static LONG CALLBACK se_translation_filter(EXCEPTION_POINTERS *ep, void *c)
|
|
|
|
{
|
|
|
|
se_translator_ctx *ctx = (se_translator_ctx *)c;
|
|
|
|
EXCEPTION_RECORD *rec = ep->ExceptionRecord;
|
|
|
|
cxx_exception_type *exc_type;
|
|
|
|
|
|
|
|
if (rec->ExceptionCode != CXX_EXCEPTION)
|
|
|
|
{
|
|
|
|
TRACE("non-c++ exception thrown in SEH handler: %x\n", rec->ExceptionCode);
|
|
|
|
MSVCRT_terminate();
|
|
|
|
}
|
|
|
|
|
|
|
|
exc_type = (cxx_exception_type *)rec->ExceptionInformation[2];
|
|
|
|
find_catch_block(rec, ctx->dest_frame, ctx->dispatch,
|
|
|
|
ctx->descr, exc_type, ctx->orig_frame);
|
|
|
|
|
|
|
|
__DestructExceptionObject(rec);
|
|
|
|
return ExceptionContinueSearch;
|
|
|
|
}
|
|
|
|
|
2016-03-21 18:23:34 +01:00
|
|
|
static DWORD cxx_frame_handler(EXCEPTION_RECORD *rec, ULONG64 frame,
|
|
|
|
CONTEXT *context, DISPATCHER_CONTEXT *dispatch,
|
|
|
|
const cxx_function_descr *descr)
|
|
|
|
{
|
2017-04-12 15:08:39 +02:00
|
|
|
int trylevel = ip_to_state(rva_to_ptr(descr->ipmap, dispatch->ImageBase),
|
|
|
|
descr->ipmap_count, dispatch->ControlPc-dispatch->ImageBase);
|
2016-03-21 18:23:34 +01:00
|
|
|
cxx_exception_type *exc_type;
|
2017-04-12 15:08:39 +02:00
|
|
|
ULONG64 orig_frame = frame;
|
|
|
|
ULONG64 throw_base;
|
|
|
|
DWORD throw_func_off;
|
|
|
|
void *throw_func;
|
|
|
|
UINT i, j;
|
2017-06-14 11:59:05 +02:00
|
|
|
int unwindlevel = -1;
|
2016-03-21 18:23:34 +01:00
|
|
|
|
2016-03-28 20:12:18 +02:00
|
|
|
if (descr->magic<CXX_FRAME_MAGIC_VC6 || descr->magic>CXX_FRAME_MAGIC_VC8)
|
2016-03-21 18:23:34 +01:00
|
|
|
{
|
|
|
|
FIXME("unhandled frame magic %x\n", descr->magic);
|
|
|
|
return ExceptionContinueSearch;
|
|
|
|
}
|
|
|
|
|
2017-04-20 15:21:14 +02:00
|
|
|
if (descr->magic >= CXX_FRAME_MAGIC_VC8 &&
|
|
|
|
(descr->flags & FUNC_DESCR_SYNCHRONOUS) &&
|
|
|
|
(rec->ExceptionCode != CXX_EXCEPTION &&
|
|
|
|
!cxx_is_consolidate(rec) &&
|
|
|
|
rec->ExceptionCode != STATUS_LONGJUMP))
|
|
|
|
return ExceptionContinueSearch; /* handle only c++ exceptions */
|
|
|
|
|
2017-04-12 15:08:39 +02:00
|
|
|
/* update orig_frame if it's a nested exception */
|
|
|
|
throw_func_off = RtlLookupFunctionEntry(dispatch->ControlPc, &throw_base, NULL)->BeginAddress;
|
|
|
|
throw_func = rva_to_ptr(throw_func_off, throw_base);
|
|
|
|
TRACE("reconstructed handler pointer: %p\n", throw_func);
|
|
|
|
for (i=descr->tryblock_count; i>0; i--)
|
|
|
|
{
|
|
|
|
const tryblock_info *tryblock = rva_to_ptr(descr->tryblock, dispatch->ImageBase);
|
|
|
|
tryblock = &tryblock[i-1];
|
|
|
|
|
|
|
|
if (trylevel>tryblock->end_level && trylevel<=tryblock->catch_level)
|
|
|
|
{
|
|
|
|
for (j=0; j<tryblock->catchblock_count; j++)
|
|
|
|
{
|
|
|
|
const catchblock_info *catchblock = rva_to_ptr(tryblock->catchblock, dispatch->ImageBase);
|
|
|
|
catchblock = &catchblock[j];
|
|
|
|
|
|
|
|
if (rva_to_ptr(catchblock->handler, dispatch->ImageBase) == throw_func)
|
|
|
|
{
|
|
|
|
TRACE("nested exception detected\n");
|
2017-06-14 11:59:05 +02:00
|
|
|
unwindlevel = tryblock->end_level;
|
2017-04-12 15:08:39 +02:00
|
|
|
orig_frame = *(ULONG64*)rva_to_ptr(catchblock->frame, frame);
|
|
|
|
TRACE("setting orig_frame to %lx\n", orig_frame);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-03-21 18:23:34 +01:00
|
|
|
if (rec->ExceptionFlags & (EH_UNWINDING|EH_EXIT_UNWIND))
|
2016-03-28 20:12:10 +02:00
|
|
|
{
|
2017-06-14 11:59:05 +02:00
|
|
|
if (rec->ExceptionFlags & EH_TARGET_UNWIND)
|
|
|
|
cxx_local_unwind(orig_frame, dispatch, descr,
|
|
|
|
cxx_is_consolidate(rec) ? rec->ExceptionInformation[3] : trylevel);
|
|
|
|
else
|
|
|
|
cxx_local_unwind(orig_frame, dispatch, descr, unwindlevel);
|
2016-03-21 18:23:34 +01:00
|
|
|
return ExceptionContinueSearch;
|
2016-03-28 20:12:10 +02:00
|
|
|
}
|
2016-03-21 18:23:34 +01:00
|
|
|
if (!descr->tryblock_count) return ExceptionContinueSearch;
|
|
|
|
|
|
|
|
if (rec->ExceptionCode == CXX_EXCEPTION)
|
|
|
|
{
|
|
|
|
exc_type = (cxx_exception_type *)rec->ExceptionInformation[2];
|
|
|
|
|
|
|
|
if (TRACE_ON(seh))
|
|
|
|
{
|
2016-03-28 20:12:10 +02:00
|
|
|
TRACE("handling C++ exception rec %p frame %lx descr %p\n", rec, frame, descr);
|
2016-03-21 18:23:34 +01:00
|
|
|
dump_exception_type(exc_type, rec->ExceptionInformation[3]);
|
|
|
|
dump_function_descr(descr, dispatch->ImageBase);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2016-03-28 20:11:44 +02:00
|
|
|
thread_data_t *data = msvcrt_get_thread_data();
|
|
|
|
|
2016-03-21 18:23:34 +01:00
|
|
|
exc_type = NULL;
|
2016-03-28 20:12:10 +02:00
|
|
|
TRACE("handling C exception code %x rec %p frame %lx descr %p\n",
|
|
|
|
rec->ExceptionCode, rec, frame, descr);
|
2016-03-28 20:11:44 +02:00
|
|
|
|
|
|
|
if (data->se_translator) {
|
|
|
|
EXCEPTION_POINTERS except_ptrs;
|
2017-05-19 19:16:07 +02:00
|
|
|
se_translator_ctx ctx;
|
2016-03-28 20:11:44 +02:00
|
|
|
|
2017-05-19 19:16:07 +02:00
|
|
|
ctx.dest_frame = frame;
|
|
|
|
ctx.orig_frame = orig_frame;
|
|
|
|
ctx.dispatch = dispatch;
|
|
|
|
ctx.descr = descr;
|
|
|
|
__TRY
|
|
|
|
{
|
|
|
|
except_ptrs.ExceptionRecord = rec;
|
|
|
|
except_ptrs.ContextRecord = context;
|
|
|
|
data->se_translator(rec->ExceptionCode, &except_ptrs);
|
|
|
|
}
|
|
|
|
__EXCEPT_CTX(se_translation_filter, &ctx)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
__ENDTRY
|
2016-03-28 20:11:44 +02:00
|
|
|
}
|
2016-03-21 18:23:34 +01:00
|
|
|
}
|
|
|
|
|
2017-04-12 15:08:39 +02:00
|
|
|
find_catch_block(rec, frame, dispatch, descr, exc_type, orig_frame);
|
2016-03-21 18:23:34 +01:00
|
|
|
return ExceptionContinueSearch;
|
|
|
|
}
|
|
|
|
|
2015-09-29 12:23:13 +02:00
|
|
|
/*********************************************************************
|
|
|
|
* __CxxExceptionFilter (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
int CDECL __CxxExceptionFilter( PEXCEPTION_POINTERS ptrs,
|
|
|
|
const type_info *ti, int flags, void **copy )
|
|
|
|
{
|
|
|
|
FIXME( "%p %p %x %p: not implemented\n", ptrs, ti, flags, copy );
|
|
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
}
|
2012-03-13 15:50:40 +01:00
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* __CxxFrameHandler (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
EXCEPTION_DISPOSITION CDECL __CxxFrameHandler( EXCEPTION_RECORD *rec, ULONG64 frame,
|
|
|
|
CONTEXT *context, DISPATCHER_CONTEXT *dispatch )
|
|
|
|
{
|
2016-03-28 20:12:10 +02:00
|
|
|
TRACE( "%p %lx %p %p\n", rec, frame, context, dispatch );
|
2016-03-21 18:23:34 +01:00
|
|
|
return cxx_frame_handler( rec, frame, context, dispatch,
|
|
|
|
rva_to_ptr(*(UINT*)dispatch->HandlerData, dispatch->ImageBase) );
|
2012-03-13 15:50:40 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* __CppXcptFilter (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
int CDECL __CppXcptFilter(NTSTATUS ex, PEXCEPTION_POINTERS ptr)
|
|
|
|
{
|
|
|
|
/* only filter c++ exceptions */
|
|
|
|
if (ex != CXX_EXCEPTION) return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
return _XcptFilter( ex, ptr );
|
|
|
|
}
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|
|
|
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|
|
|
|
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|
|
/*********************************************************************
|
|
|
|
* __CxxDetectRethrow (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
BOOL CDECL __CxxDetectRethrow(PEXCEPTION_POINTERS ptrs)
|
|
|
|
{
|
|
|
|
PEXCEPTION_RECORD rec;
|
|
|
|
|
|
|
|
if (!ptrs)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
rec = ptrs->ExceptionRecord;
|
|
|
|
|
|
|
|
if (rec->ExceptionCode == CXX_EXCEPTION &&
|
2016-03-21 18:23:06 +01:00
|
|
|
rec->NumberParameters == 4 &&
|
2012-03-13 15:50:40 +01:00
|
|
|
rec->ExceptionInformation[0] == CXX_FRAME_MAGIC_VC6 &&
|
|
|
|
rec->ExceptionInformation[2])
|
|
|
|
{
|
|
|
|
ptrs->ExceptionRecord = msvcrt_get_thread_data()->exc_record;
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
return (msvcrt_get_thread_data()->exc_record == rec);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*********************************************************************
|
|
|
|
* __CxxQueryExceptionSize (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
unsigned int CDECL __CxxQueryExceptionSize(void)
|
|
|
|
{
|
|
|
|
return sizeof(cxx_exception_type);
|
|
|
|
}
|
|
|
|
|
2012-03-13 15:40:27 +01:00
|
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
* _setjmp (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
__ASM_GLOBAL_FUNC( MSVCRT__setjmp,
|
|
|
|
"jmp " __ASM_NAME("MSVCRT__setjmpex") );
|
|
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
* _setjmpex (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
__ASM_GLOBAL_FUNC( MSVCRT__setjmpex,
|
|
|
|
"movq %rdx,(%rcx)\n\t" /* jmp_buf->Frame */
|
|
|
|
"movq %rbx,0x8(%rcx)\n\t" /* jmp_buf->Rbx */
|
|
|
|
"leaq 0x8(%rsp),%rax\n\t"
|
|
|
|
"movq %rax,0x10(%rcx)\n\t" /* jmp_buf->Rsp */
|
|
|
|
"movq %rbp,0x18(%rcx)\n\t" /* jmp_buf->Rbp */
|
|
|
|
"movq %rsi,0x20(%rcx)\n\t" /* jmp_buf->Rsi */
|
|
|
|
"movq %rdi,0x28(%rcx)\n\t" /* jmp_buf->Rdi */
|
|
|
|
"movq %r12,0x30(%rcx)\n\t" /* jmp_buf->R12 */
|
|
|
|
"movq %r13,0x38(%rcx)\n\t" /* jmp_buf->R13 */
|
|
|
|
"movq %r14,0x40(%rcx)\n\t" /* jmp_buf->R14 */
|
|
|
|
"movq %r15,0x48(%rcx)\n\t" /* jmp_buf->R15 */
|
|
|
|
"movq (%rsp),%rax\n\t"
|
|
|
|
"movq %rax,0x50(%rcx)\n\t" /* jmp_buf->Rip */
|
|
|
|
"movdqa %xmm6,0x60(%rcx)\n\t" /* jmp_buf->Xmm6 */
|
|
|
|
"movdqa %xmm7,0x70(%rcx)\n\t" /* jmp_buf->Xmm7 */
|
|
|
|
"movdqa %xmm8,0x80(%rcx)\n\t" /* jmp_buf->Xmm8 */
|
|
|
|
"movdqa %xmm9,0x90(%rcx)\n\t" /* jmp_buf->Xmm9 */
|
|
|
|
"movdqa %xmm10,0xa0(%rcx)\n\t" /* jmp_buf->Xmm10 */
|
|
|
|
"movdqa %xmm11,0xb0(%rcx)\n\t" /* jmp_buf->Xmm11 */
|
|
|
|
"movdqa %xmm12,0xc0(%rcx)\n\t" /* jmp_buf->Xmm12 */
|
|
|
|
"movdqa %xmm13,0xd0(%rcx)\n\t" /* jmp_buf->Xmm13 */
|
|
|
|
"movdqa %xmm14,0xe0(%rcx)\n\t" /* jmp_buf->Xmm14 */
|
|
|
|
"movdqa %xmm15,0xf0(%rcx)\n\t" /* jmp_buf->Xmm15 */
|
|
|
|
"xorq %rax,%rax\n\t"
|
|
|
|
"retq" );
|
|
|
|
|
|
|
|
|
|
|
|
extern void DECLSPEC_NORETURN CDECL longjmp_set_regs( struct MSVCRT___JUMP_BUFFER *jmp, int retval );
|
|
|
|
__ASM_GLOBAL_FUNC( longjmp_set_regs,
|
|
|
|
"movq %rdx,%rax\n\t" /* retval */
|
|
|
|
"movq 0x8(%rcx),%rbx\n\t" /* jmp_buf->Rbx */
|
|
|
|
"movq 0x18(%rcx),%rbp\n\t" /* jmp_buf->Rbp */
|
|
|
|
"movq 0x20(%rcx),%rsi\n\t" /* jmp_buf->Rsi */
|
|
|
|
"movq 0x28(%rcx),%rdi\n\t" /* jmp_buf->Rdi */
|
|
|
|
"movq 0x30(%rcx),%r12\n\t" /* jmp_buf->R12 */
|
|
|
|
"movq 0x38(%rcx),%r13\n\t" /* jmp_buf->R13 */
|
|
|
|
"movq 0x40(%rcx),%r14\n\t" /* jmp_buf->R14 */
|
|
|
|
"movq 0x48(%rcx),%r15\n\t" /* jmp_buf->R15 */
|
|
|
|
"movdqa 0x60(%rcx),%xmm6\n\t" /* jmp_buf->Xmm6 */
|
|
|
|
"movdqa 0x70(%rcx),%xmm7\n\t" /* jmp_buf->Xmm7 */
|
|
|
|
"movdqa 0x80(%rcx),%xmm8\n\t" /* jmp_buf->Xmm8 */
|
|
|
|
"movdqa 0x90(%rcx),%xmm9\n\t" /* jmp_buf->Xmm9 */
|
|
|
|
"movdqa 0xa0(%rcx),%xmm10\n\t" /* jmp_buf->Xmm10 */
|
|
|
|
"movdqa 0xb0(%rcx),%xmm11\n\t" /* jmp_buf->Xmm11 */
|
|
|
|
"movdqa 0xc0(%rcx),%xmm12\n\t" /* jmp_buf->Xmm12 */
|
|
|
|
"movdqa 0xd0(%rcx),%xmm13\n\t" /* jmp_buf->Xmm13 */
|
|
|
|
"movdqa 0xe0(%rcx),%xmm14\n\t" /* jmp_buf->Xmm14 */
|
|
|
|
"movdqa 0xf0(%rcx),%xmm15\n\t" /* jmp_buf->Xmm15 */
|
|
|
|
"movq 0x50(%rcx),%rdx\n\t" /* jmp_buf->Rip */
|
|
|
|
"movq 0x10(%rcx),%rsp\n\t" /* jmp_buf->Rsp */
|
|
|
|
"jmp *%rdx" );
|
|
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
* longjmp (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
void __cdecl MSVCRT_longjmp( struct MSVCRT___JUMP_BUFFER *jmp, int retval )
|
|
|
|
{
|
|
|
|
EXCEPTION_RECORD rec;
|
|
|
|
|
|
|
|
if (!retval) retval = 1;
|
|
|
|
if (jmp->Frame)
|
|
|
|
{
|
|
|
|
rec.ExceptionCode = STATUS_LONGJUMP;
|
|
|
|
rec.ExceptionFlags = 0;
|
|
|
|
rec.ExceptionRecord = NULL;
|
|
|
|
rec.ExceptionAddress = NULL;
|
|
|
|
rec.NumberParameters = 1;
|
|
|
|
rec.ExceptionInformation[0] = (DWORD_PTR)jmp;
|
|
|
|
RtlUnwind( (void *)jmp->Frame, (void *)jmp->Rip, &rec, IntToPtr(retval) );
|
|
|
|
}
|
|
|
|
longjmp_set_regs( jmp, retval );
|
|
|
|
}
|
|
|
|
|
|
|
|
/*******************************************************************
|
|
|
|
* _local_unwind (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
void __cdecl _local_unwind( void *frame, void *target )
|
|
|
|
{
|
|
|
|
RtlUnwind( frame, target, NULL, 0 );
|
|
|
|
}
|
|
|
|
|
2016-08-24 13:57:55 +02:00
|
|
|
/*********************************************************************
|
|
|
|
* _fpieee_flt (MSVCRT.@)
|
|
|
|
*/
|
|
|
|
int __cdecl _fpieee_flt(ULONG exception_code, EXCEPTION_POINTERS *ep,
|
|
|
|
int (__cdecl *handler)(_FPIEEE_RECORD*))
|
|
|
|
{
|
|
|
|
FIXME("(%x %p %p) opcode: %s\n", exception_code, ep, handler,
|
|
|
|
wine_dbgstr_longlong(*(ULONG64*)ep->ContextRecord->Rip));
|
|
|
|
return EXCEPTION_CONTINUE_SEARCH;
|
|
|
|
}
|
|
|
|
|
2012-03-13 15:40:27 +01:00
|
|
|
#endif /* __x86_64__ */
|