dlls/msvcrt/except_arm.c

   1 /*
   2  * msvcrt C++ exception handling
   3  *
   4  * Copyright 2011 Alexandre Julliard
   5  * Copyright 2013 André Hentschel
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #ifdef __arm__
  23
  24 #include <setjmp.h>
  25 #include <stdarg.h>
  26 #include <fpieee.h>
  27
  28 #include "ntstatus.h"
  29 #define WIN32_NO_STATUS
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winternl.h"
  33 #include "msvcrt.h"
  34 #include "wine/exception.h"
  35 #include "excpt.h"
  36 #include "wine/debug.h"
  37
  38 #include "cppexcept.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(seh);
  41
  42
  43 /*********************************************************************
  44  *              __CxxExceptionFilter (MSVCRT.@)
  45  */
  46 int CDECL __CxxExceptionFilter( PEXCEPTION_POINTERS ptrs,
  47                                 const type_info *ti, int flags, void **copy )
  48 {
  49     FIXME( "%p %p %x %p: not implemented\n", ptrs, ti, flags, copy );
  50     return EXCEPTION_CONTINUE_SEARCH;
  51 }
  52
  53 /*********************************************************************
  54  *              __CxxFrameHandler (MSVCRT.@)
  55  */
  56 EXCEPTION_DISPOSITION CDECL __CxxFrameHandler(EXCEPTION_RECORD *rec, DWORD frame, CONTEXT *context,
  57                                               DISPATCHER_CONTEXT *dispatch)
  58 {
  59     FIXME("%p %x %p %p: not implemented\n", rec, frame, context, dispatch);
  60     return ExceptionContinueSearch;
  61 }
  62
  63
  64 /*********************************************************************
  65  *              __CppXcptFilter (MSVCRT.@)
  66  */
  67 int CDECL __CppXcptFilter(NTSTATUS ex, PEXCEPTION_POINTERS ptr)
  68 {
  69     /* only filter c++ exceptions */
  70     if (ex != CXX_EXCEPTION) return EXCEPTION_CONTINUE_SEARCH;
  71     return _XcptFilter(ex, ptr);
  72 }
  73
  74
  75 /*********************************************************************
  76  *              __CxxDetectRethrow (MSVCRT.@)
  77  */
  78 BOOL CDECL __CxxDetectRethrow(PEXCEPTION_POINTERS ptrs)
  79 {
  80     PEXCEPTION_RECORD rec;
  81
  82     if (!ptrs)
  83         return FALSE;
  84
  85     rec = ptrs->ExceptionRecord;
  86
  87     if (rec->ExceptionCode == CXX_EXCEPTION &&
  88         rec->NumberParameters == 3 &&
  89         rec->ExceptionInformation[0] == CXX_FRAME_MAGIC_VC6 &&
  90         rec->ExceptionInformation[2])
  91     {
  92         ptrs->ExceptionRecord = msvcrt_get_thread_data()->exc_record;
  93         return TRUE;
  94     }
  95     return (msvcrt_get_thread_data()->exc_record == rec);
  96 }
  97
  98
  99 /*********************************************************************
 100  *              __CxxQueryExceptionSize (MSVCRT.@)
 101  */
 102 unsigned int CDECL __CxxQueryExceptionSize(void)
 103 {
 104     return sizeof(cxx_exception_type);
 105 }
 106
 107
 108 /*******************************************************************
 109  *              _setjmp (MSVCRT.@)
 110  */
 111 __ASM_GLOBAL_FUNC(MSVCRT__setjmp,
 112                   "mov r1, #0\n\t"  /* frame */
 113                   "b " __ASM_NAME("__wine_setjmpex"));
 114
 115 /*******************************************************************
 116  *              longjmp (MSVCRT.@)
 117  */
 118 void __cdecl MSVCRT_longjmp(_JUMP_BUFFER *jmp, int retval)
 119 {
 120     EXCEPTION_RECORD rec;
 121
 122     if (!retval) retval = 1;
 123     if (jmp->Frame)
 124     {
 125         rec.ExceptionCode = STATUS_LONGJUMP;
 126         rec.ExceptionFlags = 0;
 127         rec.ExceptionRecord = NULL;
 128         rec.ExceptionAddress = NULL;
 129         rec.NumberParameters = 1;
 130         rec.ExceptionInformation[0] = (DWORD_PTR)jmp;
 131         RtlUnwind((void *)jmp->Frame, (void *)jmp->Pc, &rec, IntToPtr(retval));
 132     }
 133     __wine_longjmp( (__wine_jmp_buf *)jmp, retval );
 134 }
 135
 136 /*********************************************************************
 137  *              _fpieee_flt (MSVCRT.@)
 138  */
 139 int __cdecl _fpieee_flt(__msvcrt_ulong exception_code, EXCEPTION_POINTERS *ep,
 140         int (__cdecl *handler)(_FPIEEE_RECORD*))
 141 {
 142     FIXME("(%lx %p %p)\n", exception_code, ep, handler);
 143     return EXCEPTION_CONTINUE_SEARCH;
 144 }
 145
 146 #endif  /* __arm__ */