| /* |
| * 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; |
| |
| /********************************************************************* |
| * __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; |
| } |
| |
| /********************************************************************* |
| * __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__ */ |
