dlls/msvcrt/except_arm64.c

   1 /*
   2  * msvcrt C++ exception handling
   3  *
   4  * Copyright 2011 Alexandre Julliard
   5  * Copyright 2013 André Hentschel
   6  * Copyright 2017 Martin Storsjo
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #ifdef __aarch64__
  27
  28 #include <stdarg.h>
  29
  30 #include "ntstatus.h"
  31 #define WIN32_NO_STATUS
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winternl.h"
  35 #include "msvcrt.h"
  36 #include "wine/exception.h"
  37 #include "excpt.h"
  38 #include "wine/debug.h"
  39
  40 #include "cppexcept.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(seh);
  43
  44
  45 /*********************************************************************
  46  *              __CxxExceptionFilter (MSVCRT.@)
  47  */
  48 int CDECL __CxxExceptionFilter( PEXCEPTION_POINTERS ptrs,
  49                                 const type_info *ti, int flags, void **copy )
  50 {
  51     FIXME( "%p %p %x %p: not implemented\n", ptrs, ti, flags, copy );
  52     return EXCEPTION_CONTINUE_SEARCH;
  53 }
  54
  55 /*********************************************************************
  56  *              __CxxFrameHandler (MSVCRT.@)
  57  */
  58 EXCEPTION_DISPOSITION CDECL __CxxFrameHandler(EXCEPTION_RECORD *rec, DWORD frame, CONTEXT *context,
  59                                               DISPATCHER_CONTEXT *dispatch)
  60 {
  61     FIXME("%p %x %p %p: not implemented\n", rec, frame, context, dispatch);
  62     return ExceptionContinueSearch;
  63 }
  64
  65
  66 /*********************************************************************
  67  *              __CppXcptFilter (MSVCRT.@)
  68  */
  69 int CDECL __CppXcptFilter(NTSTATUS ex, PEXCEPTION_POINTERS ptr)
  70 {
  71     /* only filter c++ exceptions */
  72     if (ex != CXX_EXCEPTION) return EXCEPTION_CONTINUE_SEARCH;
  73     return _XcptFilter(ex, ptr);
  74 }
  75
  76
  77 /*********************************************************************
  78  *              __CxxDetectRethrow (MSVCRT.@)
  79  */
  80 BOOL CDECL __CxxDetectRethrow(PEXCEPTION_POINTERS ptrs)
  81 {
  82     PEXCEPTION_RECORD rec;
  83
  84     if (!ptrs)
  85         return FALSE;
  86
  87     rec = ptrs->ExceptionRecord;
  88
  89     if (rec->ExceptionCode == CXX_EXCEPTION &&
  90         rec->NumberParameters == 3 &&
  91         rec->ExceptionInformation[0] == CXX_FRAME_MAGIC_VC6 &&
  92         rec->ExceptionInformation[2])
  93     {
  94         ptrs->ExceptionRecord = msvcrt_get_thread_data()->exc_record;
  95         return TRUE;
  96     }
  97     return (msvcrt_get_thread_data()->exc_record == rec);
  98 }
  99
 100
 101 /*********************************************************************
 102  *              __CxxQueryExceptionSize (MSVCRT.@)
 103  */
 104 unsigned int CDECL __CxxQueryExceptionSize(void)
 105 {
 106     return sizeof(cxx_exception_type);
 107 }
 108
 109
 110 /*******************************************************************
 111  *              _setjmp (MSVCRT.@)
 112  */
 113 __ASM_GLOBAL_FUNC(MSVCRT__setjmp,
 114                   "mov x1, #0\n\t"  /* frame */
 115                   "b " __ASM_NAME("__wine_setjmpex"));
 116
 117 /*******************************************************************
 118  *              longjmp (MSVCRT.@)
 119  */
 120 void __cdecl MSVCRT_longjmp(struct MSVCRT___JUMP_BUFFER *jmp, int retval)
 121 {
 122     EXCEPTION_RECORD rec;
 123
 124     if (!retval) retval = 1;
 125     if (jmp->Frame)
 126     {
 127         rec.ExceptionCode = STATUS_LONGJUMP;
 128         rec.ExceptionFlags = 0;
 129         rec.ExceptionRecord = NULL;
 130         rec.ExceptionAddress = NULL;
 131         rec.NumberParameters = 1;
 132         rec.ExceptionInformation[0] = (DWORD_PTR)jmp;
 133         RtlUnwind((void *)jmp->Frame, (void *)jmp->Lr, &rec, IntToPtr(retval));
 134     }
 135     __wine_longjmp( (__wine_jmp_buf *)jmp, retval );
 136 }
 137
 138 /*********************************************************************
 139  *              _fpieee_flt (MSVCRT.@)
 140  */
 141 int __cdecl _fpieee_flt(ULONG exception_code, EXCEPTION_POINTERS *ep,
 142         int (__cdecl *handler)(_FPIEEE_RECORD*))
 143 {
 144     FIXME("(%x %p %p)\n", exception_code, ep, handler);
 145     return EXCEPTION_CONTINUE_SEARCH;
 146 }
 147
 148 #endif  /* __aarch64__ */