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128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
/*
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* msvcrt C++ exception handling
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*
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* Copyright 2011 Alexandre Julliard
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* Copyright 2013 André Hentschel
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* Copyright 2017 Martin Storsjo
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifdef __aarch64__
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#include <setjmp.h>
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#include <stdarg.h>
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#include <fpieee.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "windef.h"
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#include "winbase.h"
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#include "winternl.h"
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#include "msvcrt.h"
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#include "excpt.h"
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#include "wine/debug.h"
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#include "cppexcept.h"
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WINE_DEFAULT_DEBUG_CHANNEL(seh);
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extern void *call_exc_handler( void *handler, ULONG_PTR frame, UINT flags, BYTE *nonvol_regs );
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__ASM_GLOBAL_FUNC( call_exc_handler,
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"stp x29, x30, [sp, #-96]!\n\t"
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".seh_save_fplr_x 96\n\t"
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"stp x19, x20, [sp, #16]\n\t"
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".seh_save_regp x19, 16\n\t"
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"stp x21, x22, [sp, #32]\n\t"
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".seh_save_regp x21, 32\n\t"
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"stp x23, x24, [sp, #48]\n\t"
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".seh_save_regp x23, 48\n\t"
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"stp x25, x26, [sp, #64]\n\t"
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".seh_save_regp x25, 64\n\t"
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"stp x27, x28, [sp, #80]\n\t"
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".seh_save_regp x27, 80\n\t"
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"str x1, [sp, #-16]!\n\t"
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".seh_stackalloc 16\n\t"
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".seh_endprologue\n\t"
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"ldp x19, x20, [x3, #0]\n\t" /* nonvolatile regs */
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"ldp x21, x22, [x3, #16]\n\t"
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"ldp x23, x24, [x3, #32]\n\t"
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"ldp x25, x26, [x3, #48]\n\t"
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"ldp x27, x28, [x3, #64]\n\t"
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"ldr x29, [x3, #80]\n\t"
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"blr x0\n\t"
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"add sp, sp, 16\n\t"
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"ldp x19, x20, [sp, #16]\n\t"
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"ldp x21, x22, [sp, #32]\n\t"
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"ldp x23, x24, [sp, #48]\n\t"
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"ldp x25, x26, [sp, #64]\n\t"
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"ldp x27, x28, [sp, #80]\n\t"
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"ldp x29, x30, [sp], #96\n\t"
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"ret" )
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/*******************************************************************
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* call_catch_handler
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*/
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void *call_catch_handler( EXCEPTION_RECORD *rec )
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{
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ULONG_PTR frame = rec->ExceptionInformation[1];
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void *handler = (void *)rec->ExceptionInformation[5];
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BYTE *nonvol_regs = (BYTE *)rec->ExceptionInformation[10];
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TRACE( "calling %p frame %Ix\n", handler, frame );
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return call_exc_handler( handler, frame, 0x100, nonvol_regs );
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}
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/*******************************************************************
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* call_unwind_handler
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*/
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void *call_unwind_handler( void *handler, ULONG_PTR frame, DISPATCHER_CONTEXT *dispatch )
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{
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TRACE( "calling %p frame %Ix\n", handler, frame );
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return call_exc_handler( handler, frame, 0x100, dispatch->NonVolatileRegisters );
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}
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/*******************************************************************
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* get_exception_pc
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*/
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ULONG_PTR get_exception_pc( DISPATCHER_CONTEXT *dispatch )
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{
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ULONG_PTR pc = dispatch->ControlPc;
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if (dispatch->ControlPcIsUnwound) pc -= 4;
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return pc;
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}
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/*******************************************************************
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* _setjmp (MSVCRT.@)
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*/
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__ASM_GLOBAL_FUNC( _setjmp, "b _setjmpex" );
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/*********************************************************************
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* handle_fpieee_flt
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*/
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int handle_fpieee_flt( __msvcrt_ulong exception_code, EXCEPTION_POINTERS *ep,
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int (__cdecl *handler)(_FPIEEE_RECORD*) )
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{
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FIXME("(%lx %p %p)\n", exception_code, ep, handler);
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return EXCEPTION_CONTINUE_SEARCH;
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}
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#endif /* __aarch64__ */
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