| /* |
| * msvcrt C++ exception handling |
| * |
| * Copyright 2011 Alexandre Julliard |
| * Copyright 2013 André Hentschel |
| * Copyright 2017 Martin Storsjo |
| * |
| * 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 |
| */ |
| |
| #include "config.h" |
| #include "wine/port.h" |
| |
| #ifdef __aarch64__ |
| |
| #include <stdarg.h> |
| |
| #include "ntstatus.h" |
| #define WIN32_NO_STATUS |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winternl.h" |
| #include "msvcrt.h" |
| #include "wine/exception.h" |
| #include "excpt.h" |
| #include "wine/debug.h" |
| |
| #include "cppexcept.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(seh); |
| |
| struct _DISPATCHER_CONTEXT; |
| |
| typedef LONG (WINAPI *PC_LANGUAGE_EXCEPTION_HANDLER)( EXCEPTION_POINTERS *ptrs, ULONG64 frame ); |
| typedef EXCEPTION_DISPOSITION (WINAPI *PEXCEPTION_ROUTINE)( EXCEPTION_RECORD *rec, |
| ULONG64 frame, |
| CONTEXT *context, |
| struct _DISPATCHER_CONTEXT *dispatch ); |
| |
| typedef struct _DISPATCHER_CONTEXT |
| { |
| DWORD64 ControlPc; |
| DWORD64 ImageBase; |
| PRUNTIME_FUNCTION FunctionEntry; |
| DWORD64 EstablisherFrame; |
| DWORD64 TargetPc; |
| PCONTEXT ContextRecord; |
| PEXCEPTION_ROUTINE LanguageHandler; |
| PVOID HandlerData; |
| PUNWIND_HISTORY_TABLE HistoryTable; |
| DWORD ScopeIndex; |
| BOOLEAN ControlPcIsUnwound; |
| PBYTE NonVolatileRegisters; |
| } DISPATCHER_CONTEXT; |
| |
| /********************************************************************* |
| * __CxxExceptionFilter (MSVCRT.@) |
| */ |
| int CDECL __CxxExceptionFilter( PEXCEPTION_POINTERS ptrs, |
| const type_info *ti, int flags, void **copy ) |
| { |
| FIXME( "%p %p %x %p: not implemented\n", ptrs, ti, flags, copy ); |
| return EXCEPTION_CONTINUE_SEARCH; |
| } |
| |
| /********************************************************************* |
| * __CxxFrameHandler (MSVCRT.@) |
| */ |
| EXCEPTION_DISPOSITION CDECL __CxxFrameHandler(EXCEPTION_RECORD *rec, DWORD frame, CONTEXT *context, |
| DISPATCHER_CONTEXT *dispatch) |
| { |
| FIXME("%p %x %p %p: not implemented\n", rec, frame, context, dispatch); |
| return ExceptionContinueSearch; |
| } |
| |
| |
| /********************************************************************* |
| * __CppXcptFilter (MSVCRT.@) |
| */ |
| int CDECL __CppXcptFilter(NTSTATUS ex, PEXCEPTION_POINTERS ptr) |
| { |
| /* only filter c++ exceptions */ |
| if (ex != CXX_EXCEPTION) return EXCEPTION_CONTINUE_SEARCH; |
| return _XcptFilter(ex, ptr); |
| } |
| |
| |
| /********************************************************************* |
| * __CxxDetectRethrow (MSVCRT.@) |
| */ |
| BOOL CDECL __CxxDetectRethrow(PEXCEPTION_POINTERS ptrs) |
| { |
| PEXCEPTION_RECORD rec; |
| |
| if (!ptrs) |
| return FALSE; |
| |
| rec = ptrs->ExceptionRecord; |
| |
| if (rec->ExceptionCode == CXX_EXCEPTION && |
| rec->NumberParameters == 3 && |
| rec->ExceptionInformation[0] == CXX_FRAME_MAGIC_VC6 && |
| rec->ExceptionInformation[2]) |
| { |
| ptrs->ExceptionRecord = msvcrt_get_thread_data()->exc_record; |
| return TRUE; |
| } |
| return (msvcrt_get_thread_data()->exc_record == rec); |
| } |
| |
| |
| /********************************************************************* |
| * __CxxQueryExceptionSize (MSVCRT.@) |
| */ |
| unsigned int CDECL __CxxQueryExceptionSize(void) |
| { |
| return sizeof(cxx_exception_type); |
| } |
| |
| |
| /******************************************************************* |
| * _setjmp (MSVCRT.@) |
| */ |
| __ASM_GLOBAL_FUNC(MSVCRT__setjmp, |
| "mov x1, #0\n\t" /* frame */ |
| "b " __ASM_NAME("MSVCRT__setjmpex")); |
| |
| /******************************************************************* |
| * _setjmpex (MSVCRT.@) |
| */ |
| __ASM_GLOBAL_FUNC(MSVCRT__setjmpex, |
| "str x1, [x0]\n\t" /* jmp_buf->Frame */ |
| "str x19, [x0, #0x10]\n\t" /* jmp_buf->X19 */ |
| "str x20, [x0, #0x18]\n\t" /* jmp_buf->X20 */ |
| "str x21, [x0, #0x20]\n\t" /* jmp_buf->X21 */ |
| "str x22, [x0, #0x28]\n\t" /* jmp_buf->X22 */ |
| "str x23, [x0, #0x30]\n\t" /* jmp_buf->X23 */ |
| "str x24, [x0, #0x38]\n\t" /* jmp_buf->X24 */ |
| "str x25, [x0, #0x40]\n\t" /* jmp_buf->X25 */ |
| "str x26, [x0, #0x48]\n\t" /* jmp_buf->X26 */ |
| "str x26, [x0, #0x50]\n\t" /* jmp_buf->X27 */ |
| "str x28, [x0, #0x58]\n\t" /* jmp_buf->X28 */ |
| "str x29, [x0, #0x60]\n\t" /* jmp_buf->Fp */ |
| "str x30, [x0, #0x68]\n\t" /* jmp_buf->Lr */ |
| "mov x2, sp\n\t" |
| "str x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */ |
| "mrs x2, fpcr\n\t" |
| "str w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */ |
| "mrs x2, fpsr\n\t" |
| "str w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */ |
| "str d8, [x0, #0x80]\n\t" /* jmp_buf->D[0] */ |
| "str d9, [x0, #0x88]\n\t" /* jmp_buf->D[1] */ |
| "str d10, [x0, #0x90]\n\t" /* jmp_buf->D[2] */ |
| "str d11, [x0, #0x98]\n\t" /* jmp_buf->D[3] */ |
| "str d12, [x0, #0xa0]\n\t" /* jmp_buf->D[4] */ |
| "str d13, [x0, #0xa8]\n\t" /* jmp_buf->D[5] */ |
| "str d14, [x0, #0xb0]\n\t" /* jmp_buf->D[6] */ |
| "str d15, [x0, #0xb8]\n\t" /* jmp_buf->D[7] */ |
| "mov x0, #0\n\t" |
| "ret"); |
| |
| |
| extern void DECLSPEC_NORETURN CDECL longjmp_set_regs(struct MSVCRT___JUMP_BUFFER *jmp, int retval); |
| __ASM_GLOBAL_FUNC(longjmp_set_regs, |
| "ldr x19, [x0, #0x10]\n\t" /* jmp_buf->X19 */ |
| "ldr x20, [x0, #0x18]\n\t" /* jmp_buf->X20 */ |
| "ldr x21, [x0, #0x20]\n\t" /* jmp_buf->X21 */ |
| "ldr x22, [x0, #0x28]\n\t" /* jmp_buf->X22 */ |
| "ldr x23, [x0, #0x30]\n\t" /* jmp_buf->X23 */ |
| "ldr x24, [x0, #0x38]\n\t" /* jmp_buf->X24 */ |
| "ldr x25, [x0, #0x40]\n\t" /* jmp_buf->X25 */ |
| "ldr x26, [x0, #0x48]\n\t" /* jmp_buf->X26 */ |
| "ldr x26, [x0, #0x50]\n\t" /* jmp_buf->X27 */ |
| "ldr x28, [x0, #0x58]\n\t" /* jmp_buf->X28 */ |
| "ldr x29, [x0, #0x60]\n\t" /* jmp_buf->Fp */ |
| "ldr x30, [x0, #0x68]\n\t" /* jmp_buf->Lr */ |
| "ldr x2, [x0, #0x70]\n\t" /* jmp_buf->Sp */ |
| "mov sp, x2\n\t" |
| "ldr w2, [x0, #0x78]\n\t" /* jmp_buf->Fpcr */ |
| "msr fpcr, x2\n\t" |
| "ldr w2, [x0, #0x7c]\n\t" /* jmp_buf->Fpsr */ |
| "msr fpsr, x2\n\t" |
| "ldr d8, [x0, #0x80]\n\t" /* jmp_buf->D[0] */ |
| "ldr d9, [x0, #0x88]\n\t" /* jmp_buf->D[1] */ |
| "ldr d10, [x0, #0x90]\n\t" /* jmp_buf->D[2] */ |
| "ldr d11, [x0, #0x98]\n\t" /* jmp_buf->D[3] */ |
| "ldr d12, [x0, #0xa0]\n\t" /* jmp_buf->D[4] */ |
| "ldr d13, [x0, #0xa8]\n\t" /* jmp_buf->D[5] */ |
| "ldr d14, [x0, #0xb0]\n\t" /* jmp_buf->D[6] */ |
| "ldr d15, [x0, #0xb8]\n\t" /* jmp_buf->D[7] */ |
| "mov x0, x1\n\t" /* retval */ |
| "ret"); |
| |
| /******************************************************************* |
| * longjmp (MSVCRT.@) |
| */ |
| void __cdecl MSVCRT_longjmp(struct MSVCRT___JUMP_BUFFER *jmp, int retval) |
| { |
| EXCEPTION_RECORD rec; |
| |
| if (!retval) retval = 1; |
| if (jmp->Frame) |
| { |
| rec.ExceptionCode = STATUS_LONGJUMP; |
| rec.ExceptionFlags = 0; |
| rec.ExceptionRecord = NULL; |
| rec.ExceptionAddress = NULL; |
| rec.NumberParameters = 1; |
| rec.ExceptionInformation[0] = (DWORD_PTR)jmp; |
| RtlUnwind((void *)jmp->Frame, (void *)jmp->Lr, &rec, IntToPtr(retval)); |
| } |
| longjmp_set_regs(jmp, retval); |
| } |
| |
| /********************************************************************* |
| * _fpieee_flt (MSVCRT.@) |
| */ |
| int __cdecl _fpieee_flt(ULONG exception_code, EXCEPTION_POINTERS *ep, |
| int (__cdecl *handler)(_FPIEEE_RECORD*)) |
| { |
| FIXME("(%x %p %p)\n", exception_code, ep, handler); |
| return EXCEPTION_CONTINUE_SEARCH; |
| } |
| |
| #endif /* __aarch64__ */ |
