except_arm.c

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/*
 * msvcrt C++ exception handling
 *
 * Copyright 2011 Alexandre Julliard
 * Copyright 2013 André Hentschel
 *
 * 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
 */
 
#ifdef __arm__
 
#include <setjmp.h>
#include <stdarg.h>
#include <fpieee.h>
 
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "windef.h"
#include "winbase.h"
#include "winternl.h"
#include "msvcrt.h"
#include "excpt.h"
#include "wine/debug.h"
 
#include "cppexcept.h"
 
WINE_DEFAULT_DEBUG_CHANNEL(seh);
 
 
extern void *call_exc_handler( void *handler, ULONG_PTR frame, UINT flags, BYTE *nonvol_regs );
__ASM_GLOBAL_FUNC( call_exc_handler,
                   "push {r1,r4-r11,lr}\n\t"
                   ".seh_save_regs_w {r1,r4-r11,lr}\n\t"
                   ".seh_endprologue\n\t"
                   "ldm r3, {r4-r11}\n\t"
                   "blx r0\n\t"
                   "pop {r3-r11,pc}" )
 
 
/*******************************************************************
 *      call_catch_handler
 */
void *call_catch_handler( EXCEPTION_RECORD *rec )
{
    ULONG_PTR frame = rec->ExceptionInformation[1];
    void *handler = (void *)rec->ExceptionInformation[5];
    BYTE *nonvol_regs = (BYTE *)rec->ExceptionInformation[10];
 
    TRACE( "calling %p frame %Ix\n", handler, frame );
    return call_exc_handler( handler, frame, 0x100, nonvol_regs );
}
 
 
/*******************************************************************
 *      call_unwind_handler
 */
void *call_unwind_handler( void *handler, ULONG_PTR frame, DISPATCHER_CONTEXT *dispatch )
{
    TRACE( "calling %p frame %Ix\n", handler, frame );
    return call_exc_handler( handler, frame, 0x100, dispatch->NonVolatileRegisters );
}
 
 
/*******************************************************************
 *      get_exception_pc
 */
ULONG_PTR get_exception_pc( DISPATCHER_CONTEXT *dispatch )
{
    ULONG_PTR pc = dispatch->ControlPc;
    if (dispatch->ControlPcIsUnwound) pc -= 2;
    return pc;
}
 
 
/*********************************************************************
 *              handle_fpieee_flt
 */
int handle_fpieee_flt( __msvcrt_ulong exception_code, EXCEPTION_POINTERS *ep,
                       int (__cdecl *handler)(_FPIEEE_RECORD*) )
{
    FIXME("(%lx %p %p)\n", exception_code, ep, handler);
    return EXCEPTION_CONTINUE_SEARCH;
}
 
#endif  /* __arm__ */