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[CRT] Import wine exception handling code

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The code is mostly unchanged. This includes the following changes:
* Move all wine code to crt/wine to keep it separated from our own code
* Add a minimal winternl.h
* Remove the asm macros from wine/config.h
* Include wine/asm.h where required
* Fix the names of the exported functions (GCC uses thiscall now and no wrappers are used anymore)
This commit is contained in:
Timo Kreuzer 2020-01-13 13:41:24 +01:00
parent a22ab61a87
commit 9efafd640f
29 changed files with 7504 additions and 2610 deletions
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12
sdk/lib/crt/except/amd64/ehandler.c
View file

@ -16,15 +16,7 @@ __C_specific_handler(
return 0;
}
DWORD
__CxxFrameHandler(
PEXCEPTION_RECORD rec,
EXCEPTION_REGISTRATION_RECORD* ExceptionRegistrationFrame,
PCONTEXT context,
EXCEPTION_REGISTRATION_RECORD** _ExceptionRecord)
void __cdecl _local_unwind(void* frame, void* target)
{
UNIMPLEMENTED;
__debugbreak();
return 0;
RtlUnwind(frame, target, NULL, 0);
}

6
sdk/lib/crt/except/amd64/seh.s
View file

@ -18,7 +18,6 @@
/* GLOBALS *******************************************************************/
PUBLIC _global_unwind2
PUBLIC _local_unwind
PUBLIC _local_unwind2
PUBLIC _abnormal_termination
PUBLIC _except_handler2
@ -42,11 +41,6 @@ FUNC _abnormal_termination
ret
ENDFUNC
FUNC _local_unwind
.endprolog
ret
ENDFUNC
FUNC _local_unwind2
.endprolog
ret

1266
sdk/lib/crt/except/cpp.c
View file

File diff suppressed because it is too large Load diff

596
sdk/lib/crt/except/cppexcept.c
View file

@ -1,596 +0,0 @@
/*
* msvcrt C++ exception handling
*
* Copyright 2002 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* NOTES
* A good reference is the article "How a C++ compiler implements
* exception handling" by Vishal Kochhar, available on
* www.thecodeproject.com.
*/
#define __WINE_DEBUG_CHANNEL__
#include <precomp.h>
#include <stdarg.h>
#include <wine/exception.h>
#include <internal/wine/msvcrt.h>
#include <internal/wine/cppexcept.h>
#ifdef __i386__ /* CxxFrameHandler is not supported on non-i386 */
WINE_DEFAULT_DEBUG_CHANNEL(seh);
DWORD CDECL cxx_frame_handler( PEXCEPTION_RECORD rec, cxx_exception_frame* frame,
PCONTEXT context, EXCEPTION_REGISTRATION_RECORD** dispatch,
const cxx_function_descr *descr,
EXCEPTION_REGISTRATION_RECORD* nested_frame, int nested_trylevel );
/* call a function with a given ebp */
#ifdef _MSC_VER
#pragma warning(disable:4731) // don't warn about modification of ebp
#endif
static inline void *call_ebp_func( void *func, void *_ebp )
{
void *result;
#ifdef _MSC_VER
__asm
{
mov eax, func
push ebx
push ebp
mov ebp, _ebp
call eax
pop ebp
pop ebx
mov result, eax
}
#else
int dummy;
__asm__ __volatile__ ("pushl %%ebx\n\t"
"pushl %%ebp\n\t"
"movl %4,%%ebp\n\t"
"call *%%eax\n\t"
"popl %%ebp\n\t"
"popl %%ebx"
: "=a" (result), "=S" (dummy), "=D" (dummy)
: "0" (func), "1" (_ebp) : "ecx", "edx", "memory" );
#endif
return result;
}
#ifdef _MSC_VER
#pragma warning(default:4731)
#endif
/* call a copy constructor */
static inline void call_copy_ctor( void *func, void *this, void *src, int has_vbase )
{
TRACE( "calling copy ctor %p object %p src %p\n", func, this, src );
#ifdef _MSC_VER
if (has_vbase)
{
__asm
{
mov ecx, this
push 1
push src
call func
}
}
else
{
__asm
{
mov ecx, this
push src
call func
}
}
#else
if (has_vbase)
/* in that case copy ctor takes an extra bool indicating whether to copy the base class */
__asm__ __volatile__("pushl $1; pushl %2; call *%0"
: : "r" (func), "c" (this), "r" (src) : "eax", "edx", "memory" );
else
__asm__ __volatile__("pushl %2; call *%0"
: : "r" (func), "c" (this), "r" (src) : "eax", "edx", "memory" );
#endif
}
/* call the destructor of the exception object */
static inline void call_dtor( void *func, void *object )
{
#ifdef _MSC_VER
__asm
{
mov ecx, object
call func
}
#else
__asm__ __volatile__("call *%0" : : "r" (func), "c" (object) : "eax", "edx", "memory" );
#endif
}
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable:4731)
/* continue execution to the specified address after exception is caught */
__forceinline void DECLSPEC_NORETURN continue_after_catch( cxx_exception_frame* frame, void *addr )
{
__asm
{
mov eax, addr
mov edx, frame
mov esp, [edx-4]
lea ebp, [edx+12]
jmp eax
}
for (;;) ; /* unreached */
}
#pragma warning(pop)
#else
/* continue execution to the specified address after exception is caught */
static inline void DECLSPEC_NORETURN continue_after_catch( cxx_exception_frame* frame, void *addr )
{
__asm__ __volatile__("movl -4(%0),%%esp; leal 12(%0),%%ebp; jmp *%1"
: : "r" (frame), "a" (addr) );
for (;;) ; /* unreached */
}
#endif
static inline void dump_type( const cxx_type_info *type )
{
TRACE( "flags %x type %p %s offsets %d,%d,%d size %d copy ctor %p\n",
type->flags, type->type_info, dbgstr_type_info(type->type_info),
type->offsets.this_offset, type->offsets.vbase_descr, type->offsets.vbase_offset,
type->size, type->copy_ctor );
}
static void dump_exception_type( const cxx_exception_type *type )
{
UINT i;
TRACE( "flags %x destr %p handler %p type info %p\n",
type->flags, type->destructor, type->custom_handler, type->type_info_table );
for (i = 0; i < type->type_info_table->count; i++)
{
TRACE( " %d: ", i );
dump_type( type->type_info_table->info[i] );
}
}
static void dump_function_descr( const cxx_function_descr *descr )
{
#ifndef WINE_NO_TRACE_MSGS
UINT i;
int j;
TRACE( "magic %x\n", descr->magic );
TRACE( "unwind table: %p %d\n", descr->unwind_table, descr->unwind_count );
for (i = 0; i < descr->unwind_count; i++)
{
TRACE( " %d: prev %d func %p\n", i,
descr->unwind_table[i].prev, descr->unwind_table[i].handler );
}
TRACE( "try table: %p %d\n", descr->tryblock, descr->tryblock_count );
for (i = 0; i < descr->tryblock_count; i++)
{
TRACE( " %d: start %d end %d catchlevel %d catch %p %d\n", i,
descr->tryblock[i].start_level, descr->tryblock[i].end_level,
descr->tryblock[i].catch_level, descr->tryblock[i].catchblock,
descr->tryblock[i].catchblock_count );
for (j = 0; j < descr->tryblock[i].catchblock_count; j++)
{
const catchblock_info *ptr = &descr->tryblock[i].catchblock[j];
TRACE( " %d: flags %x offset %d handler %p type %p %s\n",
j, ptr->flags, ptr->offset, ptr->handler,
ptr->type_info, dbgstr_type_info( ptr->type_info ) );
}
}
#endif
if (descr->magic <= CXX_FRAME_MAGIC_VC6) return;
TRACE( "expect list: %p\n", descr->expect_list );
if (descr->magic <= CXX_FRAME_MAGIC_VC7) return;
TRACE( "flags: %08x\n", descr->flags );
}
/* check if the exception type is caught by a given catch block, and return the type that matched */
static const cxx_type_info *find_caught_type( cxx_exception_type *exc_type,
const catchblock_info *catchblock )
{
UINT i;
for (i = 0; i < exc_type->type_info_table->count; i++)
{
const cxx_type_info *type = exc_type->type_info_table->info[i];
if (!catchblock->type_info) return type; /* catch(...) matches any type */
if (catchblock->type_info != type->type_info)
{
if (strcmp( catchblock->type_info->mangled, type->type_info->mangled )) continue;
}
/* type is the same, now check the flags */
if ((exc_type->flags & TYPE_FLAG_CONST) &&
!(catchblock->flags & TYPE_FLAG_CONST)) continue;
if ((exc_type->flags & TYPE_FLAG_VOLATILE) &&
!(catchblock->flags & TYPE_FLAG_VOLATILE)) continue;
return type; /* it matched */
}
return NULL;
}
/* copy the exception object where the catch block wants it */
static void copy_exception( void *object, cxx_exception_frame *frame,
const catchblock_info *catchblock, const cxx_type_info *type )
{
void **dest_ptr;
if (!catchblock->type_info || !catchblock->type_info->mangled[0]) return;
if (!catchblock->offset) return;
dest_ptr = (void **)((char *)&frame->ebp + catchblock->offset);
if (catchblock->flags & TYPE_FLAG_REFERENCE)
{
*dest_ptr = get_this_pointer( &type->offsets, object );
}
else if (type->flags & CLASS_IS_SIMPLE_TYPE)
{
memmove( dest_ptr, object, type->size );
/* if it is a pointer, adjust it */
if (type->size == sizeof(void *)) *dest_ptr = get_this_pointer( &type->offsets, *dest_ptr );
}
else /* copy the object */
{
if (type->copy_ctor)
call_copy_ctor( type->copy_ctor, dest_ptr, get_this_pointer(&type->offsets,object),
(type->flags & CLASS_HAS_VIRTUAL_BASE_CLASS) );
else
memmove( dest_ptr, get_this_pointer(&type->offsets,object), type->size );
}
}
/* unwind the local function up to a given trylevel */
static void cxx_local_unwind( cxx_exception_frame* frame, const cxx_function_descr *descr, int last_level)
{
void (*handler)(void);
int trylevel = frame->trylevel;
while (trylevel != last_level)
{
if (trylevel < 0 || (unsigned)trylevel >= descr->unwind_count)
{
ERR( "invalid trylevel %d\n", trylevel );
MSVCRT_terminate();
}
handler = descr->unwind_table[trylevel].handler;
if (handler)
{
TRACE( "calling unwind handler %p trylevel %d last %d ebp %p\n",
handler, trylevel, last_level, &frame->ebp );
call_ebp_func( handler, &frame->ebp );
}
trylevel = descr->unwind_table[trylevel].prev;
}
frame->trylevel = last_level;
}
/* exception frame for nested exceptions in catch block */
struct catch_func_nested_frame
{
EXCEPTION_REGISTRATION_RECORD frame; /* standard exception frame */
EXCEPTION_RECORD *prev_rec; /* previous record to restore in thread data */
cxx_exception_frame *cxx_frame; /* frame of parent exception */
const cxx_function_descr *descr; /* descriptor of parent exception */
int trylevel; /* current try level */
EXCEPTION_RECORD *rec; /* rec associated with frame */
};
/* handler for exceptions happening while calling a catch function */
static DWORD catch_function_nested_handler( EXCEPTION_RECORD *rec, EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
struct catch_func_nested_frame *nested_frame = (struct catch_func_nested_frame *)frame;
if (rec->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
{
msvcrt_get_thread_data()->exc_record = nested_frame->prev_rec;
return ExceptionContinueSearch;
}
TRACE( "got nested exception in catch function\n" );
if(rec->ExceptionCode == CXX_EXCEPTION)
{
PEXCEPTION_RECORD prev_rec = nested_frame->rec;
if(rec->ExceptionInformation[1] == 0 && rec->ExceptionInformation[2] == 0)
{
/* exception was rethrown */
rec->ExceptionInformation[1] = prev_rec->ExceptionInformation[1];
rec->ExceptionInformation[2] = prev_rec->ExceptionInformation[2];
TRACE("detect rethrow: re-propagate: obj: %lx, type: %lx\n",
rec->ExceptionInformation[1], rec->ExceptionInformation[2]);
}
else {
/* new exception in exception handler, destroy old */
void *object = (void*)prev_rec->ExceptionInformation[1];
cxx_exception_type *info = (cxx_exception_type*) prev_rec->ExceptionInformation[2];
TRACE("detect threw new exception in catch block - destroy old(obj: %p type: %p)\n",
object, info);
if(info && info->destructor)
call_dtor( info->destructor, object );
}
}
return cxx_frame_handler( rec, nested_frame->cxx_frame, context,
NULL, nested_frame->descr, &nested_frame->frame,
nested_frame->trylevel );
}
/* find and call the appropriate catch block for an exception */
/* returns the address to continue execution to after the catch block was called */
static inline void call_catch_block( PEXCEPTION_RECORD rec, cxx_exception_frame *frame,
const cxx_function_descr *descr, int nested_trylevel,
cxx_exception_type *info )
{
UINT i;
int j;
void *addr, *object = (void *)rec->ExceptionInformation[1];
struct catch_func_nested_frame nested_frame;
int trylevel = frame->trylevel;
thread_data_t *thread_data = msvcrt_get_thread_data();
DWORD save_esp = ((DWORD*)frame)[-1];
for (i = 0; i < descr->tryblock_count; i++)
{
const tryblock_info *tryblock = &descr->tryblock[i];
if (trylevel < tryblock->start_level) continue;
if (trylevel > tryblock->end_level) continue;
/* got a try block */
for (j = 0; j < tryblock->catchblock_count; j++)
{
const catchblock_info *catchblock = &tryblock->catchblock[j];
if(info)
{
const cxx_type_info *type = find_caught_type( info, catchblock );
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( object, frame, catchblock, type );
}
else
{
/* no CXX_EXCEPTION only proceed with a catch(...) block*/
if(catchblock->type_info)
continue;
TRACE("found catch(...) block\n");
}
/* unwind the stack */
RtlUnwind( frame, 0, rec, 0 );
cxx_local_unwind( frame, descr, tryblock->start_level );
frame->trylevel = tryblock->end_level + 1;
/* call the catch block */
TRACE( "calling catch block %p addr %p ebp %p\n",
catchblock, catchblock->handler, &frame->ebp );
/* setup an exception block for nested exceptions */
nested_frame.frame.Handler = (PEXCEPTION_ROUTINE)catch_function_nested_handler;
nested_frame.prev_rec = thread_data->exc_record;
nested_frame.cxx_frame = frame;
nested_frame.descr = descr;
nested_frame.trylevel = nested_trylevel + 1;
nested_frame.rec = rec;
__wine_push_frame( &nested_frame.frame );
thread_data->exc_record = rec;
addr = call_ebp_func( catchblock->handler, &frame->ebp );
thread_data->exc_record = nested_frame.prev_rec;
__wine_pop_frame( &nested_frame.frame );
((DWORD*)frame)[-1] = save_esp;
if (info && info->destructor) call_dtor( info->destructor, object );
TRACE( "done, continuing at %p\n", addr );
continue_after_catch( frame, addr );
}
}
}
/*********************************************************************
* cxx_frame_handler
*
* Implementation of __CxxFrameHandler.
*/
DWORD CDECL cxx_frame_handler( PEXCEPTION_RECORD rec, cxx_exception_frame* frame,
PCONTEXT context, EXCEPTION_REGISTRATION_RECORD** dispatch,
const cxx_function_descr *descr,
EXCEPTION_REGISTRATION_RECORD* nested_frame,
int nested_trylevel )
{
cxx_exception_type *exc_type;
if (descr->magic < CXX_FRAME_MAGIC_VC6 || descr->magic > CXX_FRAME_MAGIC_VC8)
{
ERR( "invalid frame magic %x\n", descr->magic );
return ExceptionContinueSearch;
}
if (descr->magic >= CXX_FRAME_MAGIC_VC8 &&
(descr->flags & FUNC_DESCR_SYNCHRONOUS) &&
(rec->ExceptionCode != CXX_EXCEPTION))
return ExceptionContinueSearch; /* handle only c++ exceptions */
if (rec->ExceptionFlags & (EH_UNWINDING|EH_EXIT_UNWIND))
{
if (descr->unwind_count && !nested_trylevel) cxx_local_unwind( frame, descr, -1 );
return ExceptionContinueSearch;
}
if (!descr->tryblock_count) return ExceptionContinueSearch;
if(rec->ExceptionCode == CXX_EXCEPTION)
{
exc_type = (cxx_exception_type *)rec->ExceptionInformation[2];
if (rec->ExceptionInformation[0] > CXX_FRAME_MAGIC_VC8 &&
exc_type->custom_handler)
{
return exc_type->custom_handler( rec, frame, context, dispatch,
descr, nested_trylevel, nested_frame, 0 );
}
if (TRACE_ON(seh))
{
TRACE("handling C++ exception rec %p frame %p trylevel %d descr %p nested_frame %p\n",
rec, frame, frame->trylevel, descr, nested_frame );
dump_exception_type( exc_type );
dump_function_descr( descr );
}
}
else
{
exc_type = NULL;
TRACE("handling C exception code %x rec %p frame %p trylevel %d descr %p nested_frame %p\n",
rec->ExceptionCode, rec, frame, frame->trylevel, descr, nested_frame );
}
call_catch_block( rec, frame, descr, frame->trylevel, exc_type );
return ExceptionContinueSearch;
}
/*********************************************************************
* __CxxFrameHandler (MSVCRT.@)
*/
extern DWORD CDECL __CxxFrameHandler( PEXCEPTION_RECORD rec, EXCEPTION_REGISTRATION_RECORD* frame,
PCONTEXT context, EXCEPTION_REGISTRATION_RECORD** dispatch );
#ifdef _MSC_VER
DWORD _declspec(naked) __CxxFrameHandler( PEXCEPTION_RECORD rec, EXCEPTION_REGISTRATION_RECORD* frame,
PCONTEXT context, EXCEPTION_REGISTRATION_RECORD** dispatch )
{
__asm
{
push 0
push 0
push eax
push [esp + 28]
push [esp + 28]
push [esp + 28]
push [esp + 28]
call cxx_frame_handler
add esp, 28
ret
}
}
#else
__ASM_GLOBAL_FUNC( __CxxFrameHandler,
"pushl $0\n\t" /* nested_trylevel */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"pushl $0\n\t" /* nested_frame */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"pushl %eax\n\t" /* descr */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"pushl 28(%esp)\n\t" /* dispatch */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"pushl 28(%esp)\n\t" /* context */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"pushl 28(%esp)\n\t" /* frame */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"pushl 28(%esp)\n\t" /* rec */
__ASM_CFI(".cfi_adjust_cfa_offset 4\n\t")
"call " __ASM_NAME("cxx_frame_handler") "\n\t"
"add $28,%esp\n\t"
__ASM_CFI(".cfi_adjust_cfa_offset -28\n\t")
"ret" )
#endif
/*********************************************************************
* __CxxLongjmpUnwind (MSVCRT.@)
*
* Callback meant to be used as UnwindFunc for setjmp/longjmp.
*/
void __stdcall __CxxLongjmpUnwind( const struct __JUMP_BUFFER *buf )
{
cxx_exception_frame *frame = (cxx_exception_frame *)buf->Registration;
const cxx_function_descr *descr = (const cxx_function_descr *)buf->UnwindData[0];
TRACE( "unwinding frame %p descr %p trylevel %ld\n", frame, descr, buf->TryLevel );
cxx_local_unwind( frame, descr, buf->TryLevel );
}
#endif /* __i386__ */
/*********************************************************************
* __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 );
}
/*********************************************************************
* _CxxThrowException (MSVCRT.@)
*/
void WINAPI _CxxThrowException( exception *object, const cxx_exception_type *type )
{
ULONG_PTR args[3];
args[0] = CXX_FRAME_MAGIC_VC6;
args[1] = (ULONG_PTR)object;
args[2] = (ULONG_PTR)type;
RaiseException( CXX_EXCEPTION, EH_NONCONTINUABLE, 3, args );
}
/*********************************************************************
* __CxxDetectRethrow (MSVCRT.@)
*/
BOOL CDECL __CxxDetectRethrow(PEXCEPTION_POINTERS ptrs)
{
PEXCEPTION_RECORD rec;
if (!ptrs)
return FALSE;
rec = ptrs->ExceptionRecord;
if (rec->ExceptionCode == CXX_EXCEPTION &&
rec->NumberParameters == 3 &&
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);
}

222
sdk/lib/crt/except/cppexcept.h
View file

@ -1,222 +0,0 @@
/*
* msvcrt C++ exception handling
*
* Copyright 2002 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __MSVCRT_CPPEXCEPT_H
#define __MSVCRT_CPPEXCEPT_H
#define CXX_FRAME_MAGIC_VC6 0x19930520
#define CXX_FRAME_MAGIC_VC7 0x19930521
#define CXX_FRAME_MAGIC_VC8 0x19930522
#define CXX_EXCEPTION 0xe06d7363
#define FUNC_DESCR_SYNCHRONOUS 1 /* synchronous exceptions only (built with /EHs and /EHsc) */
typedef void (*vtable_ptr)(void);
/* type_info object, see cpp.c for implementation */
typedef struct __type_info
{
const vtable_ptr* vtable;
char* name; /* Unmangled name, allocated lazily */
char mangled[64]; /* Variable length, but we declare it large enough for static RTTI */
} type_info;
/* exception object */
typedef struct __exception
{
const vtable_ptr* vtable;
char* name; /* Name of this exception, always a new copy for each object */
BOOL do_free; /* Whether to free 'name' in our dtor */
} exception;
typedef void (*cxx_copy_ctor)(void);
/* offsets for computing the this pointer */
typedef struct
{
int this_offset; /* offset of base class this pointer from start of object */
int vbase_descr; /* offset of virtual base class descriptor */
int vbase_offset; /* offset of this pointer offset in virtual base class descriptor */
} this_ptr_offsets;
/* complete information about a C++ type */
#ifndef __x86_64__
typedef struct __cxx_type_info
{
UINT flags; /* flags (see CLASS_* flags below) */
const type_info* type_info; /* C++ type info */
this_ptr_offsets offsets; /* offsets for computing the this pointer */
unsigned int size; /* object size */
cxx_copy_ctor copy_ctor; /* copy constructor */
} cxx_type_info;
#else
typedef struct __cxx_type_info
{
UINT flags;
unsigned int type_info;
this_ptr_offsets offsets;
unsigned int size;
unsigned int copy_ctor;
} cxx_type_info;
#endif
#define CLASS_IS_SIMPLE_TYPE 1
#define CLASS_HAS_VIRTUAL_BASE_CLASS 4
/* table of C++ types that apply for a given object */
#ifndef __x86_64__
typedef struct __cxx_type_info_table
{
UINT count; /* number of types */
const cxx_type_info* info[3]; /* variable length, we declare it large enough for static RTTI */
} cxx_type_info_table;
#else
typedef struct __cxx_type_info_table
{
UINT count;
unsigned int info[3];
} cxx_type_info_table;
#endif
struct __cxx_exception_frame;
struct __cxx_function_descr;
typedef DWORD(*cxx_exc_custom_handler)(PEXCEPTION_RECORD, struct __cxx_exception_frame*,
PCONTEXT, EXCEPTION_REGISTRATION_RECORD**,
const struct __cxx_function_descr*, int nested_trylevel,
EXCEPTION_REGISTRATION_RECORD* nested_frame, DWORD unknown3);
/* type information for an exception object */
#ifndef __x86_64__
typedef struct __cxx_exception_type
{
UINT flags; /* TYPE_FLAG flags */
void (*destructor)(void);/* exception object destructor */
cxx_exc_custom_handler custom_handler; /* custom handler for this exception */
const cxx_type_info_table* type_info_table; /* list of types for this exception object */
} cxx_exception_type;
#else
typedef struct
{
UINT flags;
unsigned int destructor;
unsigned int custom_handler;
unsigned int type_info_table;
} cxx_exception_type;
#endif
void WINAPI _CxxThrowException(exception*, const cxx_exception_type*);
int CDECL _XcptFilter(NTSTATUS, PEXCEPTION_POINTERS);
static inline const char* dbgstr_type_info(const type_info* info)
{
if (!info) return "{}";
return wine_dbg_sprintf("{vtable=%p name=%s (%s)}",
info->vtable, info->mangled, info->name ? info->name : "");
}
/* compute the this pointer for a base class of a given type */
static inline void* get_this_pointer(const this_ptr_offsets* off, void* object)
{
if (!object) return NULL;
if (off->vbase_descr >= 0)
{
int* offset_ptr;
/* move this ptr to vbase descriptor */
object = (char*)object + off->vbase_descr;
/* and fetch additional offset from vbase descriptor */
offset_ptr = (int*)(*(char**)object + off->vbase_offset);
object = (char*)object + *offset_ptr;
}
object = (char*)object + off->this_offset;
return object;
}
#ifndef __x86_64__
#define DEFINE_EXCEPTION_TYPE_INFO(type, base_no, cl1, cl2) \
\
static const cxx_type_info type ## _cxx_type_info = { \
0, \
& type ##_type_info, \
{ 0, -1, 0 }, \
sizeof(type), \
(cxx_copy_ctor)THISCALL(MSVCRT_ ## type ##_copy_ctor) \
}; \
\
static const cxx_type_info_table type ## _type_info_table = { \
base_no+1, \
{ \
& type ## _cxx_type_info, \
cl1, \
cl2 \
} \
}; \
\
static const cxx_exception_type type ## _exception_type = { \
0, \
(cxx_copy_ctor)THISCALL(MSVCRT_ ## type ## _dtor), \
NULL, \
& type ## _type_info_table \
};
#else
#define DEFINE_EXCEPTION_TYPE_INFO(type, base_no, cl1, cl2) \
\
static cxx_type_info type ## _cxx_type_info = { \
0, \
0xdeadbeef, \
{ 0, -1, 0 }, \
sizeof(type), \
0xdeadbeef \
}; \
\
static cxx_type_info_table type ## _type_info_table = { \
base_no+1, \
{ \
0xdeadbeef, \
0xdeadbeef, \
0xdeadbeef \
} \
}; \
\
static cxx_exception_type type ##_exception_type = { \
0, \
0xdeadbeef, \
0, \
0xdeadbeef \
}; \
\
static void init_ ## type ## _cxx(char *base) \
{ \
type ## _cxx_type_info.type_info = (char *)&type ## _type_info - base; \
type ## _cxx_type_info.copy_ctor = (char *)MSVCRT_ ## type ## _copy_ctor - base; \
type ## _type_info_table.info[0] = (char *)&type ## _cxx_type_info - base; \
type ## _type_info_table.info[1] = (char *)cl1 - base; \
type ## _type_info_table.info[2] = (char *)cl2 - base; \
type ## _exception_type.destructor = (char *)MSVCRT_ ## type ## _dtor - base; \
type ## _exception_type.type_info_table = (char *)&type ## _type_info_table - base; \
}
#endif
#endif /* __MSVCRT_CPPEXCEPT_H */

338
sdk/lib/crt/except/except.c
View file

@ -1,338 +0,0 @@
/*
* msvcrt.dll exception handling
*
* Copyright 2000 Jon Griffiths
* Copyright 2005 Juan Lang
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* FIXME: Incomplete support for nested exceptions/try block cleanup.
*/
#include <precomp.h>
#include "excpt.h"
#include "cppexcept.h"
#include <wine/exception.h>
void CDECL _global_unwind2(EXCEPTION_REGISTRATION_RECORD* frame);
typedef void (__cdecl *MSVCRT_security_error_handler)(int, void *);
static MSVCRT_security_error_handler security_error_handler;
/* VC++ extensions to Win32 SEH */
typedef struct _SCOPETABLE
{
int previousTryLevel;
int (*lpfnFilter)(PEXCEPTION_POINTERS);
int (*lpfnHandler)(void);
} SCOPETABLE, *PSCOPETABLE;
typedef struct _MSVCRT_EXCEPTION_FRAME
{
EXCEPTION_REGISTRATION_RECORD *prev;
void (*handler)(PEXCEPTION_RECORD, EXCEPTION_REGISTRATION_RECORD*,
PCONTEXT, PEXCEPTION_RECORD);
PSCOPETABLE scopetable;
int trylevel;
int _ebp;
PEXCEPTION_POINTERS xpointers;
} MSVCRT_EXCEPTION_FRAME;
typedef struct
{
int gs_cookie_offset;
ULONG gs_cookie_xor;
int eh_cookie_offset;
ULONG eh_cookie_xor;
SCOPETABLE entries[1];
} SCOPETABLE_V4;
#ifdef __i386__
static const SCOPETABLE_V4 *get_scopetable_v4( MSVCRT_EXCEPTION_FRAME *frame, ULONG_PTR cookie )
{
return (const SCOPETABLE_V4 *)((ULONG_PTR)frame->scopetable ^ cookie);
}
#if defined(__GNUC__)
static inline void call_finally_block( void *code_block, void *base_ptr )
{
__asm__ __volatile__ ("movl %1,%%ebp; call *%%eax"
: : "a" (code_block), "g" (base_ptr));
}
static inline int call_filter( int (*func)(PEXCEPTION_POINTERS), void *arg, void *ebp )
{
int ret;
__asm__ __volatile__ ("pushl %%ebp; pushl %3; movl %2,%%ebp; call *%%eax; popl %%ebp; popl %%ebp"
: "=a" (ret)
: "0" (func), "r" (ebp), "r" (arg)
: "ecx", "edx", "memory" );
return ret;
}
static inline int call_unwind_func( int (*func)(void), void *ebp )
{
int ret;
__asm__ __volatile__ ("pushl %%ebp\n\t"
"pushl %%ebx\n\t"
"pushl %%esi\n\t"
"pushl %%edi\n\t"
"movl %2,%%ebp\n\t"
"call *%0\n\t"
"popl %%edi\n\t"
"popl %%esi\n\t"
"popl %%ebx\n\t"
"popl %%ebp"
: "=a" (ret)
: "0" (func), "r" (ebp)
: "ecx", "edx", "memory" );
return ret;
}
#elif defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable:4731) // Don't complain about changing ebp
void __inline call_finally_block( void *code_block, void *base_ptr )
{
__asm
{
mov eax, code_block
mov ebp, base_ptr
call [eax]
}
}
int __inline call_filter( int (*func)(PEXCEPTION_POINTERS), void *arg, void *_ebp )
{
int _ret;
__asm
{
push ebp
mov eax, arg
push eax
mov ebp, _ebp
mov eax, func
call [eax]
mov _ret, eax
pop ebp
pop ebp
}
return _ret;
}
int __inline call_unwind_func( int (*func)(void), void *_ebp )
{
int _ret;
__asm
{
push ebp
push ebx
push esi
push edi
mov ebp, _ebp
call dword ptr [func]
mov _ret, eax
pop edi
pop esi
pop ebx
pop ebp
}
return _ret;
}
#pragma warning(pop)
#endif
static DWORD MSVCRT_nested_handler(PEXCEPTION_RECORD rec,
EXCEPTION_REGISTRATION_RECORD* frame,
PCONTEXT context,
EXCEPTION_REGISTRATION_RECORD** dispatch)
{
if (!(rec->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND)))
return ExceptionContinueSearch;
*dispatch = frame;
return ExceptionCollidedUnwind;
}
void msvcrt_local_unwind4( ULONG *cookie, MSVCRT_EXCEPTION_FRAME* frame, int trylevel, void *ebp )
{
EXCEPTION_REGISTRATION_RECORD reg;
const SCOPETABLE_V4 *scopetable = get_scopetable_v4( frame, *cookie );
TRACE("(%p,%d,%d)\n",frame, frame->trylevel, trylevel);
/* Register a handler in case of a nested exception */
reg.Handler = (PEXCEPTION_ROUTINE)MSVCRT_nested_handler;
reg.Prev = NtCurrentTeb()->NtTib.ExceptionList;
__wine_push_frame(&reg);
while (frame->trylevel != -2 && frame->trylevel != trylevel)
{
int level = frame->trylevel;
frame->trylevel = scopetable->entries[level].previousTryLevel;
if (!scopetable->entries[level].lpfnFilter)
{
TRACE( "__try block cleanup level %d handler %p ebp %p\n",
level, scopetable->entries[level].lpfnHandler, ebp );
call_unwind_func( scopetable->entries[level].lpfnHandler, ebp );
}
}
__wine_pop_frame(&reg);
TRACE("unwound OK\n");
}
/*********************************************************************
* _except_handler4_common (MSVCRT.@)
*/
int CDECL _except_handler4_common( ULONG *cookie, void (*check_cookie)(void),
EXCEPTION_RECORD *rec, MSVCRT_EXCEPTION_FRAME *frame,
CONTEXT *context, EXCEPTION_REGISTRATION_RECORD **dispatcher )
{
int retval, trylevel;
EXCEPTION_POINTERS exceptPtrs;
const SCOPETABLE_V4 *scope_table = get_scopetable_v4( frame, *cookie );
TRACE( "exception %x flags=%x at %p handler=%p %p %p cookie=%x scope table=%p cookies=%d/%x,%d/%x\n",
rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
frame->handler, context, dispatcher, *cookie, scope_table,
scope_table->gs_cookie_offset, scope_table->gs_cookie_xor,
scope_table->eh_cookie_offset, scope_table->eh_cookie_xor );
/* FIXME: no cookie validation yet */
if (rec->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
{
/* Unwinding the current frame */
msvcrt_local_unwind4( cookie, frame, -2, &frame->_ebp );
TRACE("unwound current frame, returning ExceptionContinueSearch\n");
return ExceptionContinueSearch;
}
else
{
/* Hunting for handler */
exceptPtrs.ExceptionRecord = rec;
exceptPtrs.ContextRecord = context;
*((DWORD *)frame-1) = (DWORD)&exceptPtrs;
trylevel = frame->trylevel;
while (trylevel != -2)
{
TRACE( "level %d prev %d filter %p\n", trylevel,
scope_table->entries[trylevel].previousTryLevel,
scope_table->entries[trylevel].lpfnFilter );
if (scope_table->entries[trylevel].lpfnFilter)
{
retval = call_filter( scope_table->entries[trylevel].lpfnFilter, &exceptPtrs, &frame->_ebp );
TRACE("filter returned %s\n", retval == EXCEPTION_CONTINUE_EXECUTION ?
"CONTINUE_EXECUTION" : retval == EXCEPTION_EXECUTE_HANDLER ?
"EXECUTE_HANDLER" : "CONTINUE_SEARCH");
if (retval == EXCEPTION_CONTINUE_EXECUTION)
return ExceptionContinueExecution;
if (retval == EXCEPTION_EXECUTE_HANDLER)
{
/* Unwind all higher frames, this one will handle the exception */
_global_unwind2((EXCEPTION_REGISTRATION_RECORD*)frame);
msvcrt_local_unwind4( cookie, frame, trylevel, &frame->_ebp );
/* Set our trylevel to the enclosing block, and call the __finally
* code, which won't return
*/
frame->trylevel = scope_table->entries[trylevel].previousTryLevel;
TRACE("__finally block %p\n",scope_table->entries[trylevel].lpfnHandler);
call_finally_block(scope_table->entries[trylevel].lpfnHandler, &frame->_ebp);
ERR("Returned from __finally block - expect crash!\n");
}
}
trylevel = scope_table->entries[trylevel].previousTryLevel;
}
}
TRACE("reached -2, returning ExceptionContinueSearch\n");
return ExceptionContinueSearch;
}
/*******************************************************************
* _local_unwind4 (MSVCRT.@)
*/
void CDECL _local_unwind4( ULONG *cookie, MSVCRT_EXCEPTION_FRAME* frame, int trylevel )
{
msvcrt_local_unwind4( cookie, frame, trylevel, &frame->_ebp );
}
/*********************************************************************
* _seh_longjmp_unwind4 (MSVCRT.@)
*/
void __stdcall _seh_longjmp_unwind4(struct __JUMP_BUFFER *jmp)
{
msvcrt_local_unwind4( (void *)jmp->Cookie, (MSVCRT_EXCEPTION_FRAME *)jmp->Registration,
jmp->TryLevel, (void *)jmp->Ebp );
}
#endif
/******************************************************************
* __uncaught_exception
*/
BOOL CDECL __uncaught_exception(void)
{
return FALSE;
}
/* _set_security_error_handler - not exported in native msvcrt, added in msvcr70 */
MSVCRT_security_error_handler CDECL _set_security_error_handler(
MSVCRT_security_error_handler handler )
{
MSVCRT_security_error_handler old = security_error_handler;
TRACE("(%p)\n", handler);
security_error_handler = handler;
return old;
}
/*********************************************************************
* __DestructExceptionObject (MSVCRT.@)
*/
void CDECL __DestructExceptionObject(EXCEPTION_RECORD* rec)
{
cxx_exception_type* info = (cxx_exception_type*)rec->ExceptionInformation[2];
void* object = (void*)rec->ExceptionInformation[1];
TRACE("(%p)\n", rec);
if (rec->ExceptionCode != CXX_EXCEPTION) return;
#ifndef __x86_64__
if (rec->NumberParameters != 3) return;
#else
if (rec->NumberParameters != 4) return;
#endif
if (rec->ExceptionInformation[0] < CXX_FRAME_MAGIC_VC6 ||
rec->ExceptionInformation[0] > CXX_FRAME_MAGIC_VC8) return;
if (!info || !info->destructor)
return;
#if defined(__i386__)
#ifdef _MSC_VER
((void(__fastcall*)(void*))info->destructor)(object);
#else
__asm__ __volatile__("call *%0" : : "r" (info->destructor), "c" (object) : "eax", "edx", "memory");
#endif
#elif defined(__x86_64__)
((void(__cdecl*)(void*))(info->destructor + rec->ExceptionInformation[3]))(object);
#else
((void(__cdecl*)(void*))info->destructor)(object);
#endif
}

148
sdk/lib/crt/except/i386/cpp.s
View file

@ -5,53 +5,53 @@
.code
.align 4
MACRO(DEFINE_THISCALL_WRAPPER, cxxname, stdcallname)
EXTERN &stdcallname:PROC
PUBLIC &cxxname
&cxxname:
pop eax
push ecx
push eax
jmp &stdcallname
MACRO(DEFINE_THISCALL_ALIAS, cxxname, target)
#ifdef _USE_ML
EXTERN ___thiscall&target:PROC
ALIAS <&cxxname> = <___thiscall&target>
#else
PUBLIC cxxname
.weakref &cxxname, &target
#endif
ENDM
DEFINE_THISCALL_WRAPPER ??0exception@@QAE@ABQBD@Z, _MSVCRT_exception_ctor@8
DEFINE_THISCALL_WRAPPER ??0exception@@QAE@ABQBDH@Z, _MSVCRT_exception_ctor_noalloc@12
DEFINE_THISCALL_WRAPPER ??0exception@@QAE@ABV0@@Z, _MSVCRT_exception_copy_ctor@8
DEFINE_THISCALL_WRAPPER ??0exception@@QAE@XZ, _MSVCRT_exception_default_ctor@4
DEFINE_THISCALL_WRAPPER ??1exception@@UAE@XZ, _MSVCRT_exception_dtor@4
DEFINE_THISCALL_WRAPPER ??4exception@@QAEAAV0@ABV0@@Z, _MSVCRT_exception_opequals@8
DEFINE_THISCALL_WRAPPER ??_Eexception@@UAEPAXI@Z, _MSVCRT_exception_vector_dtor@8
DEFINE_THISCALL_WRAPPER ??_Gexception@@UAEPAXI@Z, _MSVCRT_exception_scalar_dtor@8
DEFINE_THISCALL_WRAPPER ?what@exception@@UBEPBDXZ, _MSVCRT_what_exception@4
DEFINE_THISCALL_WRAPPER ??0bad_typeid@@QAE@ABV0@@Z, _MSVCRT_bad_typeid_copy_ctor@8
DEFINE_THISCALL_WRAPPER ??0bad_typeid@@QAE@PBD@Z, _MSVCRT_bad_typeid_ctor@8
DEFINE_THISCALL_WRAPPER ??_Fbad_typeid@@QAEXXZ, _MSVCRT_bad_typeid_default_ctor@4
DEFINE_THISCALL_WRAPPER ??1bad_typeid@@UAE@XZ, _MSVCRT_bad_typeid_dtor@4
DEFINE_THISCALL_WRAPPER ??4bad_typeid@@QAEAAV0@ABV0@@Z, _MSVCRT_bad_typeid_opequals@8
DEFINE_THISCALL_WRAPPER ??_Ebad_typeid@@UAEPAXI@Z, _MSVCRT_bad_typeid_vector_dtor@8
DEFINE_THISCALL_WRAPPER ??_Gbad_typeid@@UAEPAXI@Z, _MSVCRT_bad_typeid_scalar_dtor@8
DEFINE_THISCALL_WRAPPER ??0__non_rtti_object@@QAE@ABV0@@Z, _MSVCRT___non_rtti_object_copy_ctor@8
DEFINE_THISCALL_WRAPPER ??0__non_rtti_object@@QAE@PBD@Z, _MSVCRT___non_rtti_object_ctor@8
DEFINE_THISCALL_WRAPPER ??1__non_rtti_object@@UAE@XZ, _MSVCRT___non_rtti_object_dtor@4
DEFINE_THISCALL_WRAPPER ??4__non_rtti_object@@QAEAAV0@ABV0@@Z, _MSVCRT___non_rtti_object_opequals@8
DEFINE_THISCALL_WRAPPER ??_E__non_rtti_object@@UAEPAXI@Z, _MSVCRT___non_rtti_object_vector_dtor@8
DEFINE_THISCALL_WRAPPER ??_G__non_rtti_object@@UAEPAXI@Z, _MSVCRT___non_rtti_object_scalar_dtor@8
DEFINE_THISCALL_WRAPPER ??0bad_cast@@AAE@PBQBD@Z, _MSVCRT_bad_cast_ctor@8
DEFINE_THISCALL_WRAPPER ??0bad_cast@@QAE@ABQBD@Z, _MSVCRT_bad_cast_ctor@8
DEFINE_THISCALL_WRAPPER ??0bad_cast@@QAE@ABV0@@Z, _MSVCRT_bad_cast_copy_ctor@8
DEFINE_THISCALL_WRAPPER ??0bad_cast@@QAE@PBD@Z, _MSVCRT_bad_cast_ctor_charptr@8
DEFINE_THISCALL_WRAPPER ??_Fbad_cast@@QAEXXZ, _MSVCRT_bad_cast_default_ctor@4
DEFINE_THISCALL_WRAPPER ??1bad_cast@@UAE@XZ, _MSVCRT_bad_cast_dtor@4
DEFINE_THISCALL_WRAPPER ??4bad_cast@@QAEAAV0@ABV0@@Z, _MSVCRT_bad_cast_opequals@8
DEFINE_THISCALL_WRAPPER ??_Ebad_cast@@UAEPAXI@Z, _MSVCRT_bad_cast_vector_dtor@8
DEFINE_THISCALL_WRAPPER ??_Gbad_cast@@UAEPAXI@Z, _MSVCRT_bad_cast_scalar_dtor@8
DEFINE_THISCALL_WRAPPER ??8type_info@@QBEHABV0@@Z, _MSVCRT_type_info_opequals_equals@8
DEFINE_THISCALL_WRAPPER ??9type_info@@QBEHABV0@@Z, _MSVCRT_type_info_opnot_equals@8
DEFINE_THISCALL_WRAPPER ?before@type_info@@QBEHABV1@@Z, _MSVCRT_type_info_before@8
DEFINE_THISCALL_WRAPPER ??1type_info@@UAE@XZ, _MSVCRT_type_info_dtor@4
DEFINE_THISCALL_WRAPPER ?name@type_info@@QBEPBDXZ, _MSVCRT_type_info_name@4
DEFINE_THISCALL_WRAPPER ?raw_name@type_info@@QBEPBDXZ, _MSVCRT_type_info_raw_name@4
DEFINE_THISCALL_ALIAS ??0exception@@QAE@ABQBD@Z, _MSVCRT_exception_ctor
DEFINE_THISCALL_ALIAS ??0exception@@QAE@ABQBDH@Z, _MSVCRT_exception_ctor_noalloc
DEFINE_THISCALL_ALIAS ??0exception@@QAE@ABV0@@Z, _MSVCRT_exception_copy_ctor
DEFINE_THISCALL_ALIAS ??0exception@@QAE@XZ, _MSVCRT_exception_default_ctor
DEFINE_THISCALL_ALIAS ??1exception@@UAE@XZ, _MSVCRT_exception_dtor
DEFINE_THISCALL_ALIAS ??4exception@@QAEAAV0@ABV0@@Z, _MSVCRT_exception_opequals
DEFINE_THISCALL_ALIAS ??_Eexception@@UAEPAXI@Z, _MSVCRT_exception_vector_dtor
DEFINE_THISCALL_ALIAS ??_Gexception@@UAEPAXI@Z, _MSVCRT_exception_scalar_dtor
DEFINE_THISCALL_ALIAS ?what@exception@@UBEPBDXZ, _MSVCRT_what_exception
DEFINE_THISCALL_ALIAS ??0bad_typeid@@QAE@ABV0@@Z, _MSVCRT_bad_typeid_copy_ctor
DEFINE_THISCALL_ALIAS ??0bad_typeid@@QAE@PBD@Z, _MSVCRT_bad_typeid_ctor
DEFINE_THISCALL_ALIAS ??_Fbad_typeid@@QAEXXZ, _MSVCRT_bad_typeid_default_ctor
DEFINE_THISCALL_ALIAS ??1bad_typeid@@UAE@XZ, _MSVCRT_bad_typeid_dtor
DEFINE_THISCALL_ALIAS ??4bad_typeid@@QAEAAV0@ABV0@@Z, _MSVCRT_bad_typeid_opequals
DEFINE_THISCALL_ALIAS ??_Ebad_typeid@@UAEPAXI@Z, _MSVCRT_bad_typeid_vector_dtor
DEFINE_THISCALL_ALIAS ??_Gbad_typeid@@UAEPAXI@Z, _MSVCRT_bad_typeid_scalar_dtor
DEFINE_THISCALL_ALIAS ??0__non_rtti_object@@QAE@ABV0@@Z, _MSVCRT___non_rtti_object_copy_ctor
DEFINE_THISCALL_ALIAS ??0__non_rtti_object@@QAE@PBD@Z, _MSVCRT___non_rtti_object_ctor
DEFINE_THISCALL_ALIAS ??1__non_rtti_object@@UAE@XZ, _MSVCRT___non_rtti_object_dtor
DEFINE_THISCALL_ALIAS ??4__non_rtti_object@@QAEAAV0@ABV0@@Z, _MSVCRT___non_rtti_object_opequals
DEFINE_THISCALL_ALIAS ??_E__non_rtti_object@@UAEPAXI@Z, _MSVCRT___non_rtti_object_vector_dtor
DEFINE_THISCALL_ALIAS ??_G__non_rtti_object@@UAEPAXI@Z, _MSVCRT___non_rtti_object_scalar_dtor
DEFINE_THISCALL_ALIAS ??0bad_cast@@AAE@PBQBD@Z, _MSVCRT_bad_cast_ctor
DEFINE_THISCALL_ALIAS ??0bad_cast@@QAE@ABQBD@Z, _MSVCRT_bad_cast_ctor
DEFINE_THISCALL_ALIAS ??0bad_cast@@QAE@ABV0@@Z, _MSVCRT_bad_cast_copy_ctor
DEFINE_THISCALL_ALIAS ??0bad_cast@@QAE@PBD@Z, _MSVCRT_bad_cast_ctor_charptr
DEFINE_THISCALL_ALIAS ??_Fbad_cast@@QAEXXZ, _MSVCRT_bad_cast_default_ctor
DEFINE_THISCALL_ALIAS ??1bad_cast@@UAE@XZ, _MSVCRT_bad_cast_dtor
DEFINE_THISCALL_ALIAS ??4bad_cast@@QAEAAV0@ABV0@@Z, _MSVCRT_bad_cast_opequals
DEFINE_THISCALL_ALIAS ??_Ebad_cast@@UAEPAXI@Z, _MSVCRT_bad_cast_vector_dtor
DEFINE_THISCALL_ALIAS ??_Gbad_cast@@UAEPAXI@Z, _MSVCRT_bad_cast_scalar_dtor
DEFINE_THISCALL_ALIAS ??8type_info@@QBEHABV0@@Z, _MSVCRT_type_info_opequals_equals
DEFINE_THISCALL_ALIAS ??9type_info@@QBEHABV0@@Z, _MSVCRT_type_info_opnot_equals
DEFINE_THISCALL_ALIAS ?before@type_info@@QBEHABV1@@Z, _MSVCRT_type_info_before
DEFINE_THISCALL_ALIAS ??1type_info@@UAE@XZ, _MSVCRT_type_info_dtor
DEFINE_THISCALL_ALIAS ?name@type_info@@QBEPBDXZ, _MSVCRT_type_info_name
DEFINE_THISCALL_ALIAS ?raw_name@type_info@@QBEPBDXZ, _MSVCRT_type_info_raw_name
#undef _MSVCRT_
@ -108,5 +108,63 @@ DEFINE_ALIAS ?terminate@@YAXXZ, _MSVCRT_terminate, PROC
DEFINE_ALIAS ?unexpected@@YAXXZ, _MSVCRT_unexpected, PROC
// void call_copy_ctor( void *func, void *this, void *src, int has_vbase );
PUBLIC _call_copy_ctor
_call_copy_ctor:
push ebp
CFI_ADJUST_CFA_OFFSET 4
CFI_REL_OFFSET ebp, 0
mov ebp, esp
CFI_DEF_CFA_REGISTER ebp
push 1
mov ecx, [ebp + 12]
push dword ptr [ebp + 16]
call dword ptr [ebp + 8]
leave
CFI_DEF_CFA esp, 4
CFI_SAME_VALUE ebp
ret
// void DECLSPEC_NORETURN continue_after_catch( cxx_exception_frame* frame, void *addr );
PUBLIC _continue_after_catch
_continue_after_catch:
mov edx, [esp + 4]
mov eax, [esp + 8]
mov esp, [edx - 4]
lea ebp, [edx + 12]
jmp eax
// void DECLSPEC_NORETURN call_finally_block( void *code_block, void *base_ptr );
PUBLIC _call_finally_block
_call_finally_block:
mov ebp, [esp +8]
jmp dword ptr [esp + 4]
// int call_filter( int (*func)(PEXCEPTION_POINTERS), void *arg, void *ebp );
PUBLIC _call_filter
_call_filter:
push ebp
push [esp + 12]
mov ebp, [esp + 20]
call dword ptr [esp + 12]
pop ebp
pop ebp
ret
// void *call_handler( void * (*func)(void), void *ebp );
PUBLIC _call_handler
_call_handler:
push ebp
push ebx
push esi
push edi
mov ebp, [esp + 24]
call dword ptr [esp + 29]
pop edi
pop esi
pop ebx
pop ebp
ret
END

39
sdk/lib/crt/except/i386/unwind.c
View file

@ -1,39 +0,0 @@
#define WIN32_NO_STATUS
#include <precomp.h>
#define NTOS_MODE_USER
#include <setjmp.h>
#include <ndk/umtypes.h>
#include <ndk/extypes.h>
#include <ndk/rtlfuncs.h>
/* VC++ extensions to Win32 SEH */
typedef struct _SCOPETABLE
{
int previousTryLevel;
int (*lpfnFilter)(PEXCEPTION_POINTERS);
int (*lpfnHandler)(void);
} SCOPETABLE, *PSCOPETABLE;
typedef struct _MSVCRT_EXCEPTION_FRAME
{
PEXCEPTION_REGISTRATION_RECORD *prev;
void (*handler)(PEXCEPTION_RECORD, PEXCEPTION_REGISTRATION_RECORD,
PCONTEXT, PEXCEPTION_RECORD);
PSCOPETABLE scopetable;
int trylevel;
int _ebp;
PEXCEPTION_POINTERS xpointers;
} MSVCRT_EXCEPTION_FRAME;
void
_local_unwind2(MSVCRT_EXCEPTION_FRAME *RegistrationFrame,
LONG TryLevel);
/*
* @implemented
*/
void __stdcall _seh_longjmp_unwind(_JUMP_BUFFER *jmp)
{
_local_unwind2((MSVCRT_EXCEPTION_FRAME*) jmp->Registration, jmp->TryLevel);
}

16
sdk/lib/crt/except/matherr.c
View file

@ -47,19 +47,3 @@ void CDECL __setusermatherr(MSVCRT_matherr_func func)
MSVCRT_default_matherr_func = func;
TRACE(":new matherr handler %p\n", func);
}
#define _FPIEEE_RECORD void
/*
* @unimplemented
*/
int _fpieee_flt(
unsigned long exception_code,
struct _EXCEPTION_POINTERS* ExceptionPointer,
int (*handler)(_FPIEEE_RECORD*)
)
{
FIXME("Unimplemented!\n");
return 0;
}

98
sdk/lib/crt/except/xcptfil.c
View file

@ -1,98 +0,0 @@
#include <precomp.h>
#include "internal/wine/msvcrt.h"
#include "internal/wine/cppexcept.h"
typedef void (*sighandler_t)(int);
static sighandler_t sighandlers[NSIG] = { SIG_DFL };
/* The exception codes are actually NTSTATUS values */
static const struct
{
NTSTATUS status;
int signal;
} float_exception_map[] = {
{ EXCEPTION_FLT_DENORMAL_OPERAND, _FPE_DENORMAL },
{ EXCEPTION_FLT_DIVIDE_BY_ZERO, _FPE_ZERODIVIDE },
{ EXCEPTION_FLT_INEXACT_RESULT, _FPE_INEXACT },
{ EXCEPTION_FLT_INVALID_OPERATION, _FPE_INVALID },
{ EXCEPTION_FLT_OVERFLOW, _FPE_OVERFLOW },
{ EXCEPTION_FLT_STACK_CHECK, _FPE_STACKOVERFLOW },
{ EXCEPTION_FLT_UNDERFLOW, _FPE_UNDERFLOW },
};
/*
* @implemented
*/
int CDECL
_XcptFilter(NTSTATUS ExceptionCode,
struct _EXCEPTION_POINTERS * except)
{
LONG ret = EXCEPTION_CONTINUE_SEARCH;
sighandler_t handler;
if (!except || !except->ExceptionRecord)
return EXCEPTION_CONTINUE_SEARCH;
switch (except->ExceptionRecord->ExceptionCode)
{
case EXCEPTION_ACCESS_VIOLATION:
if ((handler = sighandlers[SIGSEGV]) != SIG_DFL)
{
if (handler != SIG_IGN)
{
sighandlers[SIGSEGV] = SIG_DFL;
handler(SIGSEGV);
}
ret = EXCEPTION_CONTINUE_EXECUTION;
}
break;
/* According to msdn,
* the FPE signal handler takes as a second argument the type of
* floating point exception.
*/
case EXCEPTION_FLT_DENORMAL_OPERAND:
case EXCEPTION_FLT_DIVIDE_BY_ZERO:
case EXCEPTION_FLT_INEXACT_RESULT:
case EXCEPTION_FLT_INVALID_OPERATION:
case EXCEPTION_FLT_OVERFLOW:
case EXCEPTION_FLT_STACK_CHECK:
case EXCEPTION_FLT_UNDERFLOW:
if ((handler = sighandlers[SIGFPE]) != SIG_DFL)
{
if (handler != SIG_IGN)
{
unsigned int i;
int float_signal = _FPE_INVALID;
sighandlers[SIGFPE] = SIG_DFL;
for (i = 0; i < sizeof(float_exception_map) /
sizeof(float_exception_map[0]); i++)
{
if (float_exception_map[i].status ==
except->ExceptionRecord->ExceptionCode)
{
float_signal = float_exception_map[i].signal;
break;
}
}
((float_handler)handler)(SIGFPE, float_signal);
}
ret = EXCEPTION_CONTINUE_EXECUTION;
}
break;
case EXCEPTION_ILLEGAL_INSTRUCTION:
case EXCEPTION_PRIV_INSTRUCTION:
if ((handler = sighandlers[SIGILL]) != SIG_DFL)
{
if (handler != SIG_IGN)
{
sighandlers[SIGILL] = SIG_DFL;
handler(SIGILL);
}
ret = EXCEPTION_CONTINUE_EXECUTION;
}
break;
}
return ret;
}