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 "excpt.h"
  35 #include "wine/debug.h"
  36
  37 #include "cppexcept.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(seh);
  40
  41
  42 extern void *call_exc_handler( void *handler, ULONG_PTR frame, UINT flags, BYTE *nonvol_regs );
  43 __ASM_GLOBAL_FUNC( call_exc_handler,
  44                    "push {r1,r4-r11,lr}\n\t"
  45                    ".seh_save_regs_w {r1,r4-r11,lr}\n\t"
  46                    ".seh_endprologue\n\t"
  47                    "ldm r3, {r4-r11}\n\t"
  48                    "blx r0\n\t"
  49                    "pop {r3-r11,pc}" )
  50
  51
  52 /*******************************************************************
  53  *              call_catch_handler
  54  */
  55 void *call_catch_handler( EXCEPTION_RECORD *rec )
  56 {
  57     ULONG_PTR frame = rec->ExceptionInformation[1];
  58     void *handler = (void *)rec->ExceptionInformation[5];
  59     BYTE *nonvol_regs = (BYTE *)rec->ExceptionInformation[10];
  60
  61     TRACE( "calling %p frame %Ix\n", handler, frame );
  62     return call_exc_handler( handler, frame, 0x100, nonvol_regs );
  63 }
  64
  65
  66 /*******************************************************************
  67  *              call_unwind_handler
  68  */
  69 void *call_unwind_handler( void *handler, ULONG_PTR frame, DISPATCHER_CONTEXT *dispatch )
  70 {
  71     TRACE( "calling %p frame %Ix\n", handler, frame );
  72     return call_exc_handler( handler, frame, 0x100, dispatch->NonVolatileRegisters );
  73 }
  74
  75
  76 /*******************************************************************
  77  *              get_exception_pc
  78  */
  79 ULONG_PTR get_exception_pc( DISPATCHER_CONTEXT *dispatch )
  80 {
  81     ULONG_PTR pc = dispatch->ControlPc;
  82     if (dispatch->ControlPcIsUnwound) pc -= 2;
  83     return pc;
  84 }
  85
  86
  87 /*********************************************************************
  88  *              handle_fpieee_flt
  89  */
  90 int handle_fpieee_flt( __msvcrt_ulong exception_code, EXCEPTION_POINTERS *ep,
  91                        int (__cdecl *handler)(_FPIEEE_RECORD*) )
  92 {
  93     FIXME("(%lx %p %p)\n", exception_code, ep, handler);
  94     return EXCEPTION_CONTINUE_SEARCH;
  95 }
  96
  97 #endif  /* __arm__ */