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wine/dlls/msvcrt/except_x86_64.c

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/*
* msvcrt C++ exception handling
*
* Copyright 2011 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#ifdef __x86_64__
#include <stdarg.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "msvcrt.h"
#include "wine/exception.h"
#include "excpt.h"
#include "wine/debug.h"
#include "cppexcept.h"
WINE_DEFAULT_DEBUG_CHANNEL(seh);
struct _DISPATCHER_CONTEXT;
typedef LONG (WINAPI *PC_LANGUAGE_EXCEPTION_HANDLER)( EXCEPTION_POINTERS *ptrs, ULONG64 frame );
typedef EXCEPTION_DISPOSITION (WINAPI *PEXCEPTION_ROUTINE)( EXCEPTION_RECORD *rec,
ULONG64 frame,
CONTEXT *context,
struct _DISPATCHER_CONTEXT *dispatch );
typedef struct _DISPATCHER_CONTEXT
{
ULONG64 ControlPc;
ULONG64 ImageBase;
PRUNTIME_FUNCTION FunctionEntry;
ULONG64 EstablisherFrame;
ULONG64 TargetIp;
PCONTEXT ContextRecord;
PEXCEPTION_ROUTINE LanguageHandler;
PVOID HandlerData;
PUNWIND_HISTORY_TABLE HistoryTable;
ULONG ScopeIndex;
} DISPATCHER_CONTEXT;
/*********************************************************************
* __CxxFrameHandler (MSVCRT.@)
*/
EXCEPTION_DISPOSITION CDECL __CxxFrameHandler( EXCEPTION_RECORD *rec, ULONG64 frame,
CONTEXT *context, DISPATCHER_CONTEXT *dispatch )
{
FIXME( "%p %lx %p %p: not implemented\n", rec, frame, context, dispatch );
return ExceptionContinueSearch;
}
/*********************************************************************
* __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 );
}
/*********************************************************************
* __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);
}
/*******************************************************************
* _setjmp (MSVCRT.@)
*/
__ASM_GLOBAL_FUNC( MSVCRT__setjmp,
"xorq %rdx,%rdx\n\t" /* frame */
"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 );
}
#endif /* __x86_64__ */
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