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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2015-09-29 12:23:13 +02:00
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/*********************************************************************
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* __CxxExceptionFilter (MSVCRT.@)
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*/
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int CDECL __CxxExceptionFilter( PEXCEPTION_POINTERS ptrs,
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const type_info *ti, int flags, void **copy )
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{
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FIXME( "%p %p %x %p: not implemented\n", ptrs, ti, flags, copy );
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return EXCEPTION_CONTINUE_SEARCH;
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}
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2012-03-13 15:50:40 +01:00
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/*********************************************************************
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* __CxxFrameHandler (MSVCRT.@)
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*/
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EXCEPTION_DISPOSITION CDECL __CxxFrameHandler( EXCEPTION_RECORD *rec, ULONG64 frame,
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CONTEXT *context, DISPATCHER_CONTEXT *dispatch )
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{
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FIXME( "%p %lx %p %p: not implemented\n", rec, frame, context, dispatch );
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return ExceptionContinueSearch;
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}
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/*********************************************************************
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* __CppXcptFilter (MSVCRT.@)
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*/
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int CDECL __CppXcptFilter(NTSTATUS ex, PEXCEPTION_POINTERS ptr)
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{
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/* only filter c++ exceptions */
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if (ex != CXX_EXCEPTION) return EXCEPTION_CONTINUE_SEARCH;
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return _XcptFilter( ex, ptr );
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}
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/*********************************************************************
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* __CxxDetectRethrow (MSVCRT.@)
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*/
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BOOL CDECL __CxxDetectRethrow(PEXCEPTION_POINTERS ptrs)
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{
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PEXCEPTION_RECORD rec;
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if (!ptrs)
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return FALSE;
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rec = ptrs->ExceptionRecord;
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if (rec->ExceptionCode == CXX_EXCEPTION &&
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rec->NumberParameters == 3 &&
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rec->ExceptionInformation[0] == CXX_FRAME_MAGIC_VC6 &&
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rec->ExceptionInformation[2])
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{
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ptrs->ExceptionRecord = msvcrt_get_thread_data()->exc_record;
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return TRUE;
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}
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return (msvcrt_get_thread_data()->exc_record == rec);
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}
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/*********************************************************************
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* __CxxQueryExceptionSize (MSVCRT.@)
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*/
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unsigned int CDECL __CxxQueryExceptionSize(void)
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{
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return sizeof(cxx_exception_type);
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}
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2012-03-13 15:40:27 +01:00
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/*******************************************************************
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* _setjmp (MSVCRT.@)
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*/
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__ASM_GLOBAL_FUNC( MSVCRT__setjmp,
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"xorq %rdx,%rdx\n\t" /* frame */
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"jmp " __ASM_NAME("MSVCRT__setjmpex") );
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/*******************************************************************
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* _setjmpex (MSVCRT.@)
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*/
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__ASM_GLOBAL_FUNC( MSVCRT__setjmpex,
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"movq %rdx,(%rcx)\n\t" /* jmp_buf->Frame */
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"movq %rbx,0x8(%rcx)\n\t" /* jmp_buf->Rbx */
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"leaq 0x8(%rsp),%rax\n\t"
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"movq %rax,0x10(%rcx)\n\t" /* jmp_buf->Rsp */
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"movq %rbp,0x18(%rcx)\n\t" /* jmp_buf->Rbp */
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"movq %rsi,0x20(%rcx)\n\t" /* jmp_buf->Rsi */
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"movq %rdi,0x28(%rcx)\n\t" /* jmp_buf->Rdi */
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"movq %r12,0x30(%rcx)\n\t" /* jmp_buf->R12 */
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"movq %r13,0x38(%rcx)\n\t" /* jmp_buf->R13 */
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"movq %r14,0x40(%rcx)\n\t" /* jmp_buf->R14 */
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"movq %r15,0x48(%rcx)\n\t" /* jmp_buf->R15 */
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"movq (%rsp),%rax\n\t"
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"movq %rax,0x50(%rcx)\n\t" /* jmp_buf->Rip */
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"movdqa %xmm6,0x60(%rcx)\n\t" /* jmp_buf->Xmm6 */
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"movdqa %xmm7,0x70(%rcx)\n\t" /* jmp_buf->Xmm7 */
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"movdqa %xmm8,0x80(%rcx)\n\t" /* jmp_buf->Xmm8 */
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"movdqa %xmm9,0x90(%rcx)\n\t" /* jmp_buf->Xmm9 */
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"movdqa %xmm10,0xa0(%rcx)\n\t" /* jmp_buf->Xmm10 */
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"movdqa %xmm11,0xb0(%rcx)\n\t" /* jmp_buf->Xmm11 */
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"movdqa %xmm12,0xc0(%rcx)\n\t" /* jmp_buf->Xmm12 */
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"movdqa %xmm13,0xd0(%rcx)\n\t" /* jmp_buf->Xmm13 */
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"movdqa %xmm14,0xe0(%rcx)\n\t" /* jmp_buf->Xmm14 */
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"movdqa %xmm15,0xf0(%rcx)\n\t" /* jmp_buf->Xmm15 */
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"xorq %rax,%rax\n\t"
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"retq" );
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extern void DECLSPEC_NORETURN CDECL longjmp_set_regs( struct MSVCRT___JUMP_BUFFER *jmp, int retval );
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__ASM_GLOBAL_FUNC( longjmp_set_regs,
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"movq %rdx,%rax\n\t" /* retval */
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"movq 0x8(%rcx),%rbx\n\t" /* jmp_buf->Rbx */
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"movq 0x18(%rcx),%rbp\n\t" /* jmp_buf->Rbp */
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"movq 0x20(%rcx),%rsi\n\t" /* jmp_buf->Rsi */
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"movq 0x28(%rcx),%rdi\n\t" /* jmp_buf->Rdi */
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"movq 0x30(%rcx),%r12\n\t" /* jmp_buf->R12 */
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"movq 0x38(%rcx),%r13\n\t" /* jmp_buf->R13 */
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"movq 0x40(%rcx),%r14\n\t" /* jmp_buf->R14 */
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"movq 0x48(%rcx),%r15\n\t" /* jmp_buf->R15 */
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"movdqa 0x60(%rcx),%xmm6\n\t" /* jmp_buf->Xmm6 */
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"movdqa 0x70(%rcx),%xmm7\n\t" /* jmp_buf->Xmm7 */
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"movdqa 0x80(%rcx),%xmm8\n\t" /* jmp_buf->Xmm8 */
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"movdqa 0x90(%rcx),%xmm9\n\t" /* jmp_buf->Xmm9 */
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"movdqa 0xa0(%rcx),%xmm10\n\t" /* jmp_buf->Xmm10 */
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"movdqa 0xb0(%rcx),%xmm11\n\t" /* jmp_buf->Xmm11 */
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"movdqa 0xc0(%rcx),%xmm12\n\t" /* jmp_buf->Xmm12 */
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"movdqa 0xd0(%rcx),%xmm13\n\t" /* jmp_buf->Xmm13 */
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"movdqa 0xe0(%rcx),%xmm14\n\t" /* jmp_buf->Xmm14 */
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"movdqa 0xf0(%rcx),%xmm15\n\t" /* jmp_buf->Xmm15 */
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"movq 0x50(%rcx),%rdx\n\t" /* jmp_buf->Rip */
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"movq 0x10(%rcx),%rsp\n\t" /* jmp_buf->Rsp */
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"jmp *%rdx" );
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/*******************************************************************
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* longjmp (MSVCRT.@)
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*/
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void __cdecl MSVCRT_longjmp( struct MSVCRT___JUMP_BUFFER *jmp, int retval )
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{
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EXCEPTION_RECORD rec;
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if (!retval) retval = 1;
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if (jmp->Frame)
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{
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rec.ExceptionCode = STATUS_LONGJUMP;
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rec.ExceptionFlags = 0;
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rec.ExceptionRecord = NULL;
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rec.ExceptionAddress = NULL;
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rec.NumberParameters = 1;
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rec.ExceptionInformation[0] = (DWORD_PTR)jmp;
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RtlUnwind( (void *)jmp->Frame, (void *)jmp->Rip, &rec, IntToPtr(retval) );
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}
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longjmp_set_regs( jmp, retval );
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}
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/*******************************************************************
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* _local_unwind (MSVCRT.@)
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*/
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void __cdecl _local_unwind( void *frame, void *target )
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{
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RtlUnwind( frame, target, NULL, 0 );
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}
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#endif /* __x86_64__ */
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