diff options
Diffstat (limited to 'bridges/source/cpp_uno/gcc3_linux_x86-64')
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/abi.cxx | 305 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/abi.hxx | 67 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/call.hxx | 31 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/call.s | 142 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.cxx | 178 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.hxx | 37 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/cpp2uno.cxx | 532 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/except.cxx | 260 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.cxx | 274 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.hxx | 33 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/share.hxx | 191 | ||||
| -rw-r--r-- | bridges/source/cpp_uno/gcc3_linux_x86-64/uno2cpp.cxx | 437 |
12 files changed, 2487 insertions, 0 deletions
diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/abi.cxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/abi.cxx new file mode 100644 index 000000000..243e42d05 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/abi.cxx @@ -0,0 +1,305 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +// This is an implementation of the x86-64 ABI as described in 'System V +// Application Binary Interface, AMD64 Architecture Processor Supplement' +// (http://www.x86-64.org/documentation/abi-0.95.pdf) +// +// The code in this file is a modification of src/x86/ffi64.c from libffi +// (http://sources.redhat.com/libffi/) which is under the following license: + +/* ----------------------------------------------------------------------- + ffi.c - Copyright (c) 2002 Bo Thorsen <bo@suse.de> + + x86-64 Foreign Function Interface + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + ``Software''), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + IN NO EVENT SHALL CYGNUS SOLUTIONS BE LIABLE FOR ANY CLAIM, DAMAGES OR + OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + OTHER DEALINGS IN THE SOFTWARE. + ----------------------------------------------------------------------- */ + +#include <sal/config.h> + +#include "abi.hxx" + +#include <o3tl/unreachable.hxx> +#include <sal/log.hxx> + +using namespace x86_64; + +namespace { + +/* Register class used for passing given 64bit part of the argument. + These represent classes as documented by the PS ABI, with the exception + of SSESF, SSEDF classes, that are basically SSE class, just gcc will + use SF or DFmode move instead of DImode to avoid reformatting penalties. + + Similarly we play games with INTEGERSI_CLASS to use cheaper SImode moves + whenever possible (upper half does contain padding). + */ +enum x86_64_reg_class +{ + X86_64_NO_CLASS, + X86_64_INTEGER_CLASS, + X86_64_INTEGERSI_CLASS, + X86_64_SSE_CLASS, + X86_64_SSESF_CLASS, + X86_64_MEMORY_CLASS +}; + +} + +#define MAX_CLASSES 4 + +/* x86-64 register passing implementation. See x86-64 ABI for details. Goal + of this code is to classify each 8bytes of incoming argument by the register + class and assign registers accordingly. */ + +/* Return the union class of CLASS1 and CLASS2. + See the x86-64 PS ABI for details. */ + +static enum x86_64_reg_class +merge_classes (enum x86_64_reg_class class1, enum x86_64_reg_class class2) + noexcept +{ + /* Rule #1: If both classes are equal, this is the resulting class. */ + if (class1 == class2) + return class1; + + /* Rule #2: If one of the classes is NO_CLASS, the resulting class is + the other class. */ + if (class1 == X86_64_NO_CLASS) + return class2; + if (class2 == X86_64_NO_CLASS) + return class1; + + /* Rule #3: If one of the classes is MEMORY, the result is MEMORY. */ + if (class1 == X86_64_MEMORY_CLASS || class2 == X86_64_MEMORY_CLASS) + return X86_64_MEMORY_CLASS; + + /* Rule #4: If one of the classes is INTEGER, the result is INTEGER. */ + if ((class1 == X86_64_INTEGERSI_CLASS && class2 == X86_64_SSESF_CLASS) + || (class2 == X86_64_INTEGERSI_CLASS && class1 == X86_64_SSESF_CLASS)) + return X86_64_INTEGERSI_CLASS; + if (class1 == X86_64_INTEGER_CLASS || class1 == X86_64_INTEGERSI_CLASS + || class2 == X86_64_INTEGER_CLASS || class2 == X86_64_INTEGERSI_CLASS) + return X86_64_INTEGER_CLASS; + + /* Rule #6: Otherwise class SSE is used. */ + return X86_64_SSE_CLASS; +} + +/* Classify a parameter/return type. + CLASSES will be filled by the register class used to pass each word + of the operand. The number of words is returned. In case the operand + should be passed in memory, 0 is returned. + + See the x86-64 PS ABI for details. +*/ +static int +classify_argument( typelib_TypeDescriptionReference *pTypeRef, enum x86_64_reg_class classes[], int byteOffset ) noexcept +{ + switch ( pTypeRef->eTypeClass ) + { + case typelib_TypeClass_CHAR: + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + case typelib_TypeClass_ENUM: + if ( ( byteOffset % 8 + pTypeRef->pType->nSize ) <= 4 ) + classes[0] = X86_64_INTEGERSI_CLASS; + else + classes[0] = X86_64_INTEGER_CLASS; + return 1; + case typelib_TypeClass_FLOAT: + if ( ( byteOffset % 8 ) == 0 ) + classes[0] = X86_64_SSESF_CLASS; + else + classes[0] = X86_64_SSE_CLASS; + return 1; + case typelib_TypeClass_DOUBLE: + classes[0] = X86_64_SSE_CLASS; + return 1; + case typelib_TypeClass_STRING: + case typelib_TypeClass_TYPE: + case typelib_TypeClass_ANY: + case typelib_TypeClass_SEQUENCE: + case typelib_TypeClass_INTERFACE: + return 0; + case typelib_TypeClass_STRUCT: + { + typelib_TypeDescription * pTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pTypeDescr, pTypeRef ); + + const int UNITS_PER_WORD = 8; + int words = ( pTypeDescr->nSize + UNITS_PER_WORD - 1 ) / UNITS_PER_WORD; + enum x86_64_reg_class subclasses[MAX_CLASSES]; + + /* If the struct is larger than 16 bytes, pass it on the stack. */ + if ( pTypeDescr->nSize > 16 ) + { + TYPELIB_DANGER_RELEASE( pTypeDescr ); + return 0; + } + + for ( int i = 0; i < words; i++ ) + classes[i] = X86_64_NO_CLASS; + + const typelib_CompoundTypeDescription *pStruct = reinterpret_cast<const typelib_CompoundTypeDescription*>( pTypeDescr ); + + /* Merge the fields of structure. */ + for ( sal_Int32 nMember = 0; nMember < pStruct->nMembers; ++nMember ) + { + typelib_TypeDescriptionReference *pTypeInStruct = pStruct->ppTypeRefs[ nMember ]; + int offset = byteOffset + pStruct->pMemberOffsets[ nMember ]; + + int num = classify_argument( pTypeInStruct, subclasses, offset ); + + if ( num == 0 ) + { + TYPELIB_DANGER_RELEASE( pTypeDescr ); + return 0; + } + + for ( int i = 0; i < num; i++ ) + { + int pos = offset / 8; + classes[i + pos] = merge_classes( subclasses[i], classes[i + pos] ); + if (classes[i + pos] == X86_64_MEMORY_CLASS) { + TYPELIB_DANGER_RELEASE( pTypeDescr ); + return 0; + } + } + } + + TYPELIB_DANGER_RELEASE( pTypeDescr ); + + return words; + } + + default: + O3TL_UNREACHABLE; + } +} + +/* Examine the argument and return set number of register required in each + class. Return 0 iff parameter should be passed in memory. */ +bool x86_64::examine_argument( typelib_TypeDescriptionReference *pTypeRef, int &nUsedGPR, int &nUsedSSE ) noexcept +{ + enum x86_64_reg_class classes[MAX_CLASSES]; + // coverity[uninit_use_in_call : FALSE] + int n = classify_argument( pTypeRef, classes, 0 ); + + if ( n == 0 ) + return false; + + nUsedGPR = 0; + nUsedSSE = 0; + for ( n--; n >= 0; n-- ) + switch ( classes[n] ) + { + case X86_64_INTEGER_CLASS: + case X86_64_INTEGERSI_CLASS: + nUsedGPR++; + break; + case X86_64_SSE_CLASS: + case X86_64_SSESF_CLASS: + nUsedSSE++; + break; + default: + O3TL_UNREACHABLE; + } + return true; +} + +bool x86_64::return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ) noexcept +{ + if (pTypeRef->eTypeClass == typelib_TypeClass_VOID) { + return false; + } + enum x86_64_reg_class classes[MAX_CLASSES]; + // coverity[uninit_use_in_call : FALSE] + return classify_argument(pTypeRef, classes, 0) == 0; +} + +x86_64::ReturnKind x86_64::getReturnKind(typelib_TypeDescriptionReference * type) noexcept { + x86_64_reg_class classes[MAX_CLASSES]; + // coverity[uninit_use_in_call : FALSE] + auto const n = classify_argument(type, classes, 0); + if (n == 0) { + return ReturnKind::Memory; + } + if (n == 2 && (classes[0] == X86_64_SSE_CLASS || classes[0] == X86_64_SSESF_CLASS) + && (classes[1] == X86_64_INTEGER_CLASS || classes[1] == X86_64_INTEGERSI_CLASS)) + { + return ReturnKind::RegistersFpInt; + } + if (n == 2 && (classes[0] == X86_64_INTEGER_CLASS || classes[0] == X86_64_INTEGERSI_CLASS) + && (classes[1] == X86_64_SSE_CLASS || classes[1] == X86_64_SSESF_CLASS)) + { + return ReturnKind::RegistersIntFp; + } + return ReturnKind::RegistersGeneral; +} + +void x86_64::fill_struct( typelib_TypeDescriptionReference *pTypeRef, const sal_uInt64 *pGPR, const double *pSSE, void *pStruct ) noexcept +{ + enum x86_64_reg_class classes[MAX_CLASSES]; + // coverity[uninit_use_in_call : FALSE] + int n = classify_argument( pTypeRef, classes, 0 ); + + sal_uInt64 *pStructAlign = static_cast<sal_uInt64 *>( pStruct ); + for ( int i = 0; i != n; ++i ) + switch ( classes[i] ) + { + case X86_64_INTEGER_CLASS: + case X86_64_INTEGERSI_CLASS: + *pStructAlign++ = *pGPR++; + break; + case X86_64_SSE_CLASS: + case X86_64_SSESF_CLASS: + *pStructAlign++ = *reinterpret_cast<const sal_uInt64 *>( pSSE++ ); + break; + default: + O3TL_UNREACHABLE; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/abi.hxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/abi.hxx new file mode 100644 index 000000000..3ef80543a --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/abi.hxx @@ -0,0 +1,67 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +// This is an implementation of the x86-64 ABI as described in 'System V +// Application Binary Interface, AMD64 Architecture Processor Supplement' +// (http://www.x86-64.org/documentation/abi-0.95.pdf) + +#include <typelib/typedescription.hxx> + +namespace x86_64 +{ + +/* 6 general purpose registers are used for parameter passing */ +const sal_uInt32 MAX_GPR_REGS = 6; + +/* 8 SSE registers are used for parameter passing */ +const sal_uInt32 MAX_SSE_REGS = 8; + +/* Count number of required registers. + + Examine the argument and return set number of register required in each + class. + + Return false iff parameter should be passed in memory. +*/ +bool examine_argument( typelib_TypeDescriptionReference *pTypeRef, int &nUsedGPR, int &nUsedSSE ) noexcept; + +/** Does function that returns this type use a hidden parameter, or registers? + + The value can be returned either in a hidden 1st parameter (which is a + pointer to a structure allocated by the caller), or in registers (rax, rdx + for the integers, xmm0, xmm1 for the floating point numbers). +*/ +bool return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ) noexcept; + +enum class ReturnKind { + Memory, + RegistersGeneral, + RegistersFpInt, + RegistersIntFp +}; + +ReturnKind getReturnKind(typelib_TypeDescriptionReference * type) noexcept; + +void fill_struct( typelib_TypeDescriptionReference *pTypeRef, const sal_uInt64* pGPR, const double* pSSE, void *pStruct ) noexcept; + +} // namespace x86_64 + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/call.hxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/call.hxx new file mode 100644 index 000000000..08b19f06b --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/call.hxx @@ -0,0 +1,31 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <sal/config.h> + +#include <sal/types.h> + +extern "C" int cpp_vtable_call( + sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, + void ** gpreg, void ** fpreg, void ** ovrflw, + sal_uInt64 * pRegisterReturn /* space for register return */ ); + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/call.s b/bridges/source/cpp_uno/gcc3_linux_x86-64/call.s new file mode 100644 index 000000000..e7ff10624 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/call.s @@ -0,0 +1,142 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + .text + .align 2 +.globl privateSnippetExecutor + .type privateSnippetExecutor, @function +privateSnippetExecutor: +.LFB3: +#if defined(END_BRANCH_INS_SUPPORT) + endbr64 +#endif + pushq %rbp +.LCFI0: + movq %rsp, %rbp +.LCFI1: + subq $160, %rsp +.LCFI2: + movq %r10, -152(%rbp) # Save (nVtableOffset << 32) + nFunctionIndex + + movq %rdi, -112(%rbp) # Save GP registers + movq %rsi, -104(%rbp) + movq %rdx, -96(%rbp) + movq %rcx, -88(%rbp) + movq %r8 , -80(%rbp) + movq %r9 , -72(%rbp) + + movsd %xmm0, -64(%rbp) # Save FP registers + movsd %xmm1, -56(%rbp) + movsd %xmm2, -48(%rbp) + movsd %xmm3, -40(%rbp) + movsd %xmm4, -32(%rbp) + movsd %xmm5, -24(%rbp) + movsd %xmm6, -16(%rbp) + movsd %xmm7, -8(%rbp) + + leaq -144(%rbp), %r9 # 6th param: sal_uInt64 * pRegisterReturn + leaq 16(%rbp), %r8 # 5rd param: void ** ovrflw + leaq -64(%rbp), %rcx # 4th param: void ** fpreg + leaq -112(%rbp), %rdx # 3rd param: void ** gpreg + movl -148(%rbp), %esi # 2nd param: sal_int32 nVtableOffset + movl -152(%rbp), %edi # 1st param: sal_int32 nFunctionIndex + + call cpp_vtable_call + + testl %eax, %eax + je .Lfpint + jg .Lintfp + + movq -144(%rbp), %rax # Potential return value (general case) + movq -136(%rbp), %rdx # Potential return value (general case) + movq -144(%rbp), %xmm0 # Potential return value (general case) + movq -136(%rbp), %xmm1 # Potential return value (general case) + jmp .Lfinish +.Lfpint: + movq -144(%rbp), %xmm0 # Return value (special fp and integer case) + movq -136(%rbp), %rax # Return value (special fp and integer case) + jmp .Lfinish +.Lintfp: + movq -144(%rbp), %rax # Return value (special integer and fp case) + movq -136(%rbp), %xmm0 # Return value (special integer and fp case) + +.Lfinish: + leave + ret +.LFE3: + .size privateSnippetExecutor, .-privateSnippetExecutor + # see http://refspecs.linuxfoundation.org/LSB_3.0.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html + # for details of the .eh_frame, the "Common Information Entry" and "Frame Description Entry" formats + # and http://mentorembedded.github.io/cxx-abi/exceptions.pdf for more info + .section .eh_frame,"a",@unwind +.Lframe1: + .long .LECIE1-.LSCIE1 # CIE Length +.LSCIE1: + .long 0x0 # CIE ID + .byte 0x1 # CIE Version + .string "zR" # CIE Augmentation String + .uleb128 0x1 # CIE Code Alignment Factor + .sleb128 -8 # CIE Data Alignment Factor + .byte 0x10 # CIE Return Address Register: pseudo "Return Address RA" + .uleb128 0x1 # CIE Augmentation Data Length + .byte 0x1b # CIE Augmentation Data + # CIE Initial Instructions: + .byte 0xc # DW_CFA_def_cfa %rsp +8 + .uleb128 0x7 + .uleb128 0x8 + .byte 0x90 # DW_CFA_offset (pseudo "Return Address RA") +1 (i.e., -8) + .uleb128 0x1 + .align 8 +.LECIE1: +.LSFDE1: + .long .LEFDE1-.LASFDE1 # FDE Length +.LASFDE1: + .long .LASFDE1-.Lframe1 # FDE CIE Pointer + .long .LFB3-. # FDE PC Begin + .long .LFE3-.LFB3 # FDE PC Range + .uleb128 0x0 # FDE Augmentation Data Length + # FDE Call Frame Instructions: + .byte 0x4 # DW_CFA_advance_loc4 .LCFI0 + .long .LCFI0-.LFB3 + .byte 0xe # DW_CFA_def_cfa_offset +16 + .uleb128 0x10 + .byte 0x86 # DW_CFA_offset %rbp +2 (i.e., -16) + .uleb128 0x2 + .byte 0x4 # DW_CFA_advance_loc4 .LCFI1 + .long .LCFI1-.LCFI0 + .byte 0xd # DW_CFA_def_cfa_register %rbp + .uleb128 0x6 + .align 8 +.LEFDE1: + .section .note.GNU-stack,"",@progbits + .section .note.gnu.property,"a" + .p2align 3 + .long 1f - 0f + .long 4f - 1f + .long 5 +0: + .string "GNU" +1: + .p2align 3 + .long 0xc0000002 + .long 3f - 2f +2: + .long 0x3 +3: + .p2align 3 +4: diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.cxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.cxx new file mode 100644 index 000000000..680e8da81 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.cxx @@ -0,0 +1,178 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/config.h> + +#include <cstring> + +#include <cppu/macros.hxx> +#include <sal/types.h> +#include <typelib/typeclass.h> +#include <typelib/typedescription.h> + +#include "abi.hxx" +#include "callvirtualmethod.hxx" + +// The call instruction within the asm block of callVirtualMethod may throw +// exceptions. At least GCC 4.7.0 with -O0 would create (unnecessary) +// .gcc_exception_table call-site table entries around all other calls in this +// function that can throw, leading to std::terminate if the asm call throws an +// exception and the unwinding C++ personality routine finds the unexpected hole +// in the .gcc_exception_table. Therefore, make sure this function explicitly +// only calls nothrow-functions (so GCC 4.7.0 with -O0 happens to not create a +// .gcc_exception_table section at all for this function). For some reason, +// this also needs to be in a source file of its own. +// +// Also, this file should be compiled with -fnon-call-exceptions, and ideally +// there would be a way to tell the compiler that the asm block contains calls +// to functions that can potentially throw; see the mail thread starting at +// <http://gcc.gnu.org/ml/gcc/2012-03/msg00454.html> "C++: Letting compiler know +// asm block can call function that can throw?" + +void CPPU_CURRENT_NAMESPACE::callVirtualMethod( + void * pThis, sal_uInt32 nVtableIndex, void * pRegisterReturn, + typelib_TypeDescriptionReference * pReturnTypeRef, bool bSimpleReturn, + sal_uInt64 *pStack, sal_uInt32 nStack, sal_uInt64 *pGPR, double * pFPR) +{ + // Work around Clang -fsanitize=address "inline assembly requires more + // registers than available" error: + struct Data { + sal_uInt64 pMethod; + sal_uInt64 * pStack; + sal_uInt32 nStack; + sal_uInt64 * pGPR; + double * pFPR; + // Return values: + sal_uInt64 rax; + sal_uInt64 rdx; + double xmm0; + double xmm1; + } data; + data.pStack = pStack; + data.nStack = nStack; + data.pGPR = pGPR; + data.pFPR = pFPR; + + // Get pointer to method + sal_uInt64 pMethod = *static_cast<sal_uInt64 *>(pThis); + pMethod += 8 * nVtableIndex; + data.pMethod = *reinterpret_cast<sal_uInt64 *>(pMethod); + + asm volatile ( + // Push arguments to stack + "movq %%rsp, %%r12\n\t" + "movl 16%0, %%ecx\n\t" + "jrcxz .Lpushed\n\t" + "xor %%rax, %%rax\n\t" + "leaq (%%rax, %%rcx, 8), %%rax\n\t" + "subq %%rax, %%rsp\n\t" + "andq $-9, %%rsp\n\t" // 16-bytes aligned + "movq 8%0, %%rsi\n\t" + "\n.Lpush:\n\t" + "decq %%rcx\n\t" + "movq (%%rsi, %%rcx, 8), %%rax\n\t" + "movq %%rax, (%%rsp, %%rcx, 8)\n\t" + "jnz .Lpush\n\t" + "\n.Lpushed:\n\t" + + // Fill the xmm registers + "movq 32%0, %%rax\n\t" + + "movsd (%%rax), %%xmm0\n\t" + "movsd 8(%%rax), %%xmm1\n\t" + "movsd 16(%%rax), %%xmm2\n\t" + "movsd 24(%%rax), %%xmm3\n\t" + "movsd 32(%%rax), %%xmm4\n\t" + "movsd 40(%%rax), %%xmm5\n\t" + "movsd 48(%%rax), %%xmm6\n\t" + "movsd 56(%%rax), %%xmm7\n\t" + + // Fill the general purpose registers + "movq 24%0, %%rax\n\t" + + "movq (%%rax), %%rdi\n\t" + "movq 8(%%rax), %%rsi\n\t" + "movq 16(%%rax), %%rdx\n\t" + "movq 24(%%rax), %%rcx\n\t" + "movq 32(%%rax), %%r8\n\t" + "movq 40(%%rax), %%r9\n\t" + + // Perform the call + "movq 0%0, %%r11\n\t" + "call *%%r11\n\t" + + // Fill the return values + "movq %%rax, 40%0\n\t" + "movq %%rdx, 48%0\n\t" + "movsd %%xmm0, 56%0\n\t" + "movsd %%xmm1, 64%0\n\t" + + // Reset %rsp + "movq %%r12, %%rsp\n\t" + :: "o" (data) + : "rax", "rdi", "rsi", "rdx", "rcx", "r8", "r9", "r10", "r11", "r12", + "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7", + "xmm8", "xmm9", "xmm10", "xmm11", "xmm12", "xmm13", "xmm14", "xmm15", + "memory" + ); + + switch (pReturnTypeRef->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + *static_cast<sal_uInt64 *>( pRegisterReturn ) = data.rax; + break; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + case typelib_TypeClass_ENUM: + *static_cast<sal_uInt32 *>( pRegisterReturn ) = *reinterpret_cast<sal_uInt32*>( &data.rax ); + break; + case typelib_TypeClass_CHAR: + case typelib_TypeClass_SHORT: + case typelib_TypeClass_UNSIGNED_SHORT: + *static_cast<sal_uInt16 *>( pRegisterReturn ) = *reinterpret_cast<sal_uInt16*>( &data.rax ); + break; + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + *static_cast<sal_uInt8 *>( pRegisterReturn ) = *reinterpret_cast<sal_uInt8*>( &data.rax ); + break; + case typelib_TypeClass_FLOAT: + case typelib_TypeClass_DOUBLE: + *static_cast<double *>( pRegisterReturn ) = data.xmm0; + break; + default: + { + sal_Int32 const nRetSize = pReturnTypeRef->pType->nSize; + if (bSimpleReturn && nRetSize <= 16 && nRetSize > 0) + { + sal_uInt64 longs[2]; + longs[0] = data.rax; + longs[1] = data.rdx; + + double doubles[2]; + doubles[0] = data.xmm0; + doubles[1] = data.xmm1; + x86_64::fill_struct( pReturnTypeRef, &longs[0], &doubles[0], pRegisterReturn); + } + break; + } + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.hxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.hxx new file mode 100644 index 000000000..ac87c1c85 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/callvirtualmethod.hxx @@ -0,0 +1,37 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <sal/config.h> + +#include <cppu/macros.hxx> +#include <sal/types.h> +#include <typelib/typedescription.h> + +namespace CPPU_CURRENT_NAMESPACE { + +void callVirtualMethod( + void * pThis, sal_uInt32 nVtableIndex, void * pRegisterReturn, + typelib_TypeDescriptionReference * pReturnTypeRef, bool bSimpleReturn, + sal_uInt64 *pStack, sal_uInt32 nStack, sal_uInt64 *pGPR, double * pFPR); + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/cpp2uno.cxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/cpp2uno.cxx new file mode 100644 index 000000000..f400c766a --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/cpp2uno.cxx @@ -0,0 +1,532 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#include <stdio.h> +#include <stdlib.h> + +#include <rtl/alloc.h> +#include <sal/log.hxx> + +#include <com/sun/star/uno/genfunc.hxx> +#include <com/sun/star/uno/RuntimeException.hpp> +#include <config_options.h> +#include <uno/data.h> +#include <typelib/typedescription.hxx> + +#include <bridge.hxx> +#include <cppinterfaceproxy.hxx> +#include <types.hxx> +#include <vtablefactory.hxx> + +#include "abi.hxx" +#include "call.hxx" +#include "rtti.hxx" +#include "share.hxx" + +using namespace ::com::sun::star::uno; + +// Perform the UNO call +// +// We must convert the parameters stored in gpreg, fpreg and ovrflw to UNO +// arguments and call pThis->getUnoI()->pDispatcher. +// +// gpreg: [ret *], this, [gpr params] +// fpreg: [fpr params] +// ovrflw: [gpr or fpr params (properly aligned)] +// +// [ret *] is present when we are returning a structure bigger than 16 bytes +// Simple types are returned in rax, rdx (int), or xmm0, xmm1 (fp). +// Similarly structures <= 16 bytes are in rax, rdx, xmm0, xmm1 as necessary. +// +// The return value is the same as for cpp_vtable_call. +static int cpp2uno_call( + bridges::cpp_uno::shared::CppInterfaceProxy * pThis, + const typelib_TypeDescription * pMemberTypeDescr, + typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return + sal_Int32 nParams, typelib_MethodParameter * pParams, + void ** gpreg, void ** fpreg, void ** ovrflw, + sal_uInt64 * pRegisterReturn /* space for register return */ ) +{ + unsigned int nr_gpr = 0; //number of gpr registers used + unsigned int nr_fpr = 0; //number of fpr registers used + + // return + typelib_TypeDescription * pReturnTypeDescr = nullptr; + if (pReturnTypeRef) + TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); + x86_64::ReturnKind returnKind + = (pReturnTypeRef == nullptr || pReturnTypeRef->eTypeClass == typelib_TypeClass_VOID) + ? x86_64::ReturnKind::RegistersGeneral : x86_64::getReturnKind(pReturnTypeRef); + + void * pUnoReturn = nullptr; + void * pCppReturn = nullptr; // complex return ptr: if != 0 && != pUnoReturn, reconversion need + + if ( pReturnTypeDescr ) + { + if ( returnKind == x86_64::ReturnKind::Memory ) + { + pCppReturn = *gpreg++; + nr_gpr++; + + pUnoReturn = ( bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr ) + ? alloca( pReturnTypeDescr->nSize ) + : pCppReturn ); // direct way + } + else + pUnoReturn = pRegisterReturn; // direct way for simple types + } + + // pop this + gpreg++; + nr_gpr++; + + // stack space + // parameters + void ** pUnoArgs = static_cast<void **>(alloca( 4 * sizeof(void *) * nParams )); + void ** pCppArgs = pUnoArgs + nParams; + // indices of values this have to be converted (interface conversion cpp<=>uno) + sal_Int32 * pTempIndices = reinterpret_cast<sal_Int32 *>(pUnoArgs + (2 * nParams)); + // type descriptions for reconversions + typelib_TypeDescription ** ppTempParamTypeDescr = reinterpret_cast<typelib_TypeDescription **>(pUnoArgs + (3 * nParams)); + + sal_Int32 nTempIndices = 0; + + for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) + { + const typelib_MethodParameter & rParam = pParams[nPos]; + + if ( !rParam.bOut && bridges::cpp_uno::shared::isSimpleType( rParam.pTypeRef ) ) // value + { + int nUsedGPR = 0; + int nUsedSSE = 0; + bool bFitsRegisters = x86_64::examine_argument( rParam.pTypeRef, nUsedGPR, nUsedSSE ); + + // Simple types must fit exactly one register on x86_64 + assert( bFitsRegisters && ( ( nUsedSSE == 1 && nUsedGPR == 0 ) || ( nUsedSSE == 0 && nUsedGPR == 1 ) ) ); (void)bFitsRegisters; + + if ( nUsedSSE == 1 ) + { + if ( nr_fpr < x86_64::MAX_SSE_REGS ) + { + pCppArgs[nPos] = pUnoArgs[nPos] = fpreg++; + nr_fpr++; + } + else + pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++; + } + else if ( nUsedGPR == 1 ) + { + if ( nr_gpr < x86_64::MAX_GPR_REGS ) + { + pCppArgs[nPos] = pUnoArgs[nPos] = gpreg++; + nr_gpr++; + } + else + pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw++; + } + } + else // ref + { + typelib_TypeDescription * pParamTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); + + void *pCppStack; + if ( nr_gpr < x86_64::MAX_GPR_REGS ) + { + pCppArgs[nPos] = pCppStack = *gpreg++; + nr_gpr++; + } + else + pCppArgs[nPos] = pCppStack = *ovrflw++; + + if (! rParam.bIn) // is pure out + { + // uno out is unconstructed mem! + pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ); + pTempIndices[nTempIndices] = nPos; + // will be released at reconversion + ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; + } + else if ( bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ) ) // is in/inout + { + pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ); + uno_copyAndConvertData( pUnoArgs[nPos], + pCppStack, pParamTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + pTempIndices[nTempIndices] = nPos; // has to be reconverted + // will be released at reconversion + ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; + } + else // direct way + { + pUnoArgs[nPos] = pCppStack; + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + } + } + + // ExceptionHolder + uno_Any aUnoExc; // Any will be constructed by callee + uno_Any * pUnoExc = &aUnoExc; + + // invoke uno dispatch call + (*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc ); + + // in case an exception occurred... + if ( pUnoExc ) + { + // destruct temporary in/inout params + for ( ; nTempIndices--; ) + { + sal_Int32 nIndex = pTempIndices[nTempIndices]; + + if (pParams[nIndex].bIn) // is in/inout => was constructed + uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndices], nullptr ); + TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] ); + } + if (pReturnTypeDescr) + TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); + + CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() ); // has to destruct the any + // is here for dummy + return 0; + } + else // else no exception occurred... + { + // temporary params + for ( ; nTempIndices--; ) + { + sal_Int32 nIndex = pTempIndices[nTempIndices]; + typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices]; + + if ( pParams[nIndex].bOut ) // inout/out + { + // convert and assign + uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); + uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr, + pThis->getBridge()->getUno2Cpp() ); + } + // destroy temp uno param + uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, nullptr ); + + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + // return + if ( pCppReturn ) // has complex return + { + if ( pUnoReturn != pCppReturn ) // needs reconversion + { + uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr, + pThis->getBridge()->getUno2Cpp() ); + // destroy temp uno return + uno_destructData( pUnoReturn, pReturnTypeDescr, nullptr ); + } + // complex return ptr is set to return reg + *reinterpret_cast<void **>(pRegisterReturn) = pCppReturn; + } + if ( pReturnTypeDescr ) + { + TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); + } + switch (returnKind) { + case x86_64::ReturnKind::RegistersFpInt: + return 0; + case x86_64::ReturnKind::RegistersIntFp: + return 1; + default: + return -1; + } + } +} + +// Returns -1 for the general case where potential return values from privateSnippetExecutor can be +// copied from pRegisterReturn to both %rax and %rdx (in that order) and to %xmm0 and %xmm1 (in that +// order)---each specific return type will only require a subset of that copy operations, but the +// other copies to those non--callee-saved registers will be redundant and harmless. Returns 0 for +// the special case where return values from privateSnippetExecutor must be copied from +// pRegisterReturn to %xmm0 and %rax (in that order). Returns 1 for the special case where return +// privateSnippetExecutor must be copied from pRegisterReturn to %rax and %xmm0 (in that order). +int cpp_vtable_call( + sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, + void ** gpreg, void ** fpreg, void ** ovrflw, + sal_uInt64 * pRegisterReturn /* space for register return */ ) +{ + // gpreg: [ret *], this, [other gpr params] + // fpreg: [fpr params] + // ovrflw: [gpr or fpr params (properly aligned)] + void * pThis; + if ( nFunctionIndex & 0x80000000 ) + { + nFunctionIndex &= 0x7fffffff; + pThis = gpreg[1]; + } + else + { + pThis = gpreg[0]; + } + pThis = static_cast<char *>( pThis ) - nVtableOffset; + + bridges::cpp_uno::shared::CppInterfaceProxy * pCppI = + bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy( pThis ); + + typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr(); + + if ( nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex ) + { + SAL_WARN( + "bridges", + "illegal " << OUString::unacquired(&pTypeDescr->aBase.pTypeName) + << " vtable index " << nFunctionIndex << "/" + << pTypeDescr->nMapFunctionIndexToMemberIndex); + throw RuntimeException( + ("illegal " + OUString::unacquired(&pTypeDescr->aBase.pTypeName) + + " vtable index " + OUString::number(nFunctionIndex) + "/" + + OUString::number(pTypeDescr->nMapFunctionIndexToMemberIndex)), + reinterpret_cast<XInterface *>( pCppI ) ); + } + + // determine called method + sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex]; + assert(nMemberPos < pTypeDescr->nAllMembers); + + TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] ); + + int eRet; + switch ( aMemberDescr.get()->eTypeClass ) + { + case typelib_TypeClass_INTERFACE_ATTRIBUTE: + { + typelib_TypeDescriptionReference *pAttrTypeRef = + reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( aMemberDescr.get() )->pAttributeTypeRef; + + if ( pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex ) + { + // is GET method + eRet = cpp2uno_call( pCppI, aMemberDescr.get(), pAttrTypeRef, + 0, nullptr, // no params + gpreg, fpreg, ovrflw, pRegisterReturn ); + } + else + { + // is SET method + typelib_MethodParameter aParam; + aParam.pTypeRef = pAttrTypeRef; + aParam.bIn = true; + aParam.bOut = false; + + eRet = cpp2uno_call( pCppI, aMemberDescr.get(), + nullptr, // indicates void return + 1, &aParam, + gpreg, fpreg, ovrflw, pRegisterReturn ); + } + break; + } + case typelib_TypeClass_INTERFACE_METHOD: + { + // is METHOD + switch ( nFunctionIndex ) + { + case 1: // acquire() + pCppI->acquireProxy(); // non virtual call! + eRet = 0; + break; + case 2: // release() + pCppI->releaseProxy(); // non virtual call! + eRet = 0; + break; + case 0: // queryInterface() opt + { + typelib_TypeDescription * pTD = nullptr; + TYPELIB_DANGER_GET( &pTD, static_cast<Type *>( gpreg[2] )->getTypeLibType() ); + if ( pTD ) + { + XInterface * pInterface = nullptr; + (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface) + ( pCppI->getBridge()->getCppEnv(), + reinterpret_cast<void **>(&pInterface), + pCppI->getOid().pData, + reinterpret_cast<typelib_InterfaceTypeDescription *>( pTD ) ); + + if ( pInterface ) + { + ::uno_any_construct( static_cast<uno_Any *>( gpreg[0] ), + &pInterface, pTD, cpp_acquire ); + + pInterface->release(); + TYPELIB_DANGER_RELEASE( pTD ); + + reinterpret_cast<void **>( pRegisterReturn )[0] = gpreg[0]; + eRet = 0; + break; + } + TYPELIB_DANGER_RELEASE( pTD ); + } + [[fallthrough]]; // else perform queryInterface() + } + default: + { + typelib_InterfaceMethodTypeDescription *pMethodTD = + reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( aMemberDescr.get() ); + + eRet = cpp2uno_call( pCppI, aMemberDescr.get(), + pMethodTD->pReturnTypeRef, + pMethodTD->nParams, + pMethodTD->pParams, + gpreg, fpreg, ovrflw, pRegisterReturn ); + } + } + break; + } + default: + { + throw RuntimeException("no member description found!", + reinterpret_cast<XInterface *>( pCppI ) ); + } + } + + return eRet; +} + +const int codeSnippetSize = 24; + +// Generate a trampoline that redirects method calls to +// privateSnippetExecutor(). +// +// privateSnippetExecutor() saves all the registers that are used for +// parameter passing on x86_64, and calls the cpp_vtable_call(). +// When it returns, privateSnippetExecutor() sets the return value. +// +// Note: The code snippet we build here must not create a stack frame, +// otherwise the UNO exceptions stop working thanks to non-existing +// unwinding info. +static unsigned char * codeSnippet( unsigned char * code, + sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, + bool bHasHiddenParam ) +{ + sal_uInt64 nOffsetAndIndex = ( static_cast<sal_uInt64>(nVtableOffset) << 32 ) | static_cast<sal_uInt64>(nFunctionIndex); + + if ( bHasHiddenParam ) + nOffsetAndIndex |= 0x80000000; + + // movq $<nOffsetAndIndex>, %r10 + *reinterpret_cast<sal_uInt16 *>( code ) = 0xba49; + *reinterpret_cast<sal_uInt16 *>( code + 2 ) = nOffsetAndIndex & 0xFFFF; + *reinterpret_cast<sal_uInt32 *>( code + 4 ) = nOffsetAndIndex >> 16; + *reinterpret_cast<sal_uInt16 *>( code + 8 ) = nOffsetAndIndex >> 48; + + // movq $<address of the privateSnippetExecutor>, %r11 + *reinterpret_cast<sal_uInt16 *>( code + 10 ) = 0xbb49; + *reinterpret_cast<sal_uInt32 *>( code + 12 ) + = reinterpret_cast<sal_uInt64>(privateSnippetExecutor); + *reinterpret_cast<sal_uInt32 *>( code + 16 ) + = reinterpret_cast<sal_uInt64>(privateSnippetExecutor) >> 32; + + // jmpq *%r11 + *reinterpret_cast<sal_uInt32 *>( code + 20 ) = 0x00e3ff49; + + return code + codeSnippetSize; +} + +struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; }; + +bridges::cpp_uno::shared::VtableFactory::Slot * +bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block) +{ + return static_cast< Slot * >(block) + 2; +} + +std::size_t bridges::cpp_uno::shared::VtableFactory::getBlockSize( + sal_Int32 slotCount) +{ + return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize; +} + +bridges::cpp_uno::shared::VtableFactory::Slot * +bridges::cpp_uno::shared::VtableFactory::initializeBlock( + void * block, sal_Int32 slotCount, sal_Int32 vtableNumber, + typelib_InterfaceTypeDescription * type) +{ + Slot * slots = mapBlockToVtable(block); + slots[-2].fn = reinterpret_cast<void *>(-(vtableNumber * sizeof (void *))); +#if ENABLE_RUNTIME_OPTIMIZATIONS + slots[-1].fn = nullptr; + (void)type; +#else + slots[-1].fn = x86_64::getRtti(type->aBase); +#endif + return slots + slotCount; +} + + +unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions( + Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff, + typelib_InterfaceTypeDescription const * type, sal_Int32 nFunctionOffset, + sal_Int32 functionCount, sal_Int32 nVtableOffset ) +{ + (*slots) -= functionCount; + Slot * s = *slots; + for ( sal_Int32 nPos = 0; nPos < type->nMembers; ++nPos ) + { + typelib_TypeDescription * pTD = nullptr; + + TYPELIB_DANGER_GET( &pTD, type->ppMembers[ nPos ] ); + assert(pTD); + + if ( pTD->eTypeClass == typelib_TypeClass_INTERFACE_ATTRIBUTE ) + { + typelib_InterfaceAttributeTypeDescription *pAttrTD = + reinterpret_cast<typelib_InterfaceAttributeTypeDescription *>( pTD ); + + // get method + (s++)->fn = code + writetoexecdiff; + code = codeSnippet( code, nFunctionOffset++, nVtableOffset, + x86_64::return_in_hidden_param( pAttrTD->pAttributeTypeRef ) ); + + if ( ! pAttrTD->bReadOnly ) + { + // set method + (s++)->fn = code + writetoexecdiff; + code = codeSnippet( code, nFunctionOffset++, nVtableOffset, false ); + } + } + else if ( pTD->eTypeClass == typelib_TypeClass_INTERFACE_METHOD ) + { + typelib_InterfaceMethodTypeDescription *pMethodTD = + reinterpret_cast<typelib_InterfaceMethodTypeDescription *>( pTD ); + + (s++)->fn = code + writetoexecdiff; + code = codeSnippet( code, nFunctionOffset++, nVtableOffset, + x86_64::return_in_hidden_param( pMethodTD->pReturnTypeRef ) ); + } + else + assert(false); + + TYPELIB_DANGER_RELEASE( pTD ); + } + return code; +} + +void bridges::cpp_uno::shared::VtableFactory::flushCode( + SAL_UNUSED_PARAMETER unsigned char const *, + SAL_UNUSED_PARAMETER unsigned char const * ) +{} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/except.cxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/except.cxx new file mode 100644 index 000000000..2a92dba37 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/except.cxx @@ -0,0 +1,260 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#include <stdio.h> +#include <string.h> + +#include <rtl/ustrbuf.hxx> +#include <sal/log.hxx> + +#include <com/sun/star/uno/genfunc.hxx> +#include <com/sun/star/uno/RuntimeException.hpp> +#include <typelib/typedescription.hxx> +#include <uno/any2.h> + +#include "rtti.hxx" +#include "share.hxx" + + +using namespace ::std; +using namespace ::com::sun::star::uno; +using namespace ::__cxxabiv1; + + +namespace CPPU_CURRENT_NAMESPACE +{ + +static OUString toUNOname( char const * p ) +{ +#if OSL_DEBUG_LEVEL > 1 + char const * start = p; +#endif + + // example: N3com3sun4star4lang24IllegalArgumentExceptionE + + OUStringBuffer buf( 64 ); + assert( *p == 'N' ); + ++p; // skip N + + while (*p != 'E') + { + // read chars count + int n = *p++ - '0'; + while ('0' <= *p && '9' >= *p) + { + n *= 10; + n += (*p++ - '0'); + } + buf.appendAscii( p, n ); + p += n; + if (*p != 'E') + buf.append( '.' ); + } + +#if OSL_DEBUG_LEVEL > 1 + OUString ret( buf.makeStringAndClear() ); + OString c_ret( OUStringToOString( ret, RTL_TEXTENCODING_ASCII_US ) ); + fprintf( stderr, "> toUNOname(): %s => %s\n", start, c_ret.getStr() ); + return ret; +#else + return buf.makeStringAndClear(); +#endif +} + +extern "C" { +static void _GLIBCXX_CDTOR_CALLABI deleteException( void * pExc ) +{ + __cxxabiv1::__cxa_exception const * header = static_cast<__cxxabiv1::__cxa_exception const *>(pExc) - 1; +#if defined _LIBCPPABI_VERSION // detect libc++abi + // First, the libcxxabi commit + // <http://llvm.org/viewvc/llvm-project?view=revision&revision=303175> + // "[libcxxabi] Align unwindHeader on a double-word boundary" towards + // LLVM 5.0 changed the size of __cxa_exception by adding + // + // __attribute__((aligned)) + // + // to the final member unwindHeader, on x86-64 effectively adding a hole of + // size 8 in front of that member (changing its offset from 88 to 96, + // sizeof(__cxa_exception) from 120 to 128, and alignof(__cxa_exception) + // from 8 to 16); the "header1" hack below to dynamically determine whether we run against a + // LLVM 5 libcxxabi is to look at the exceptionDestructor member, which must + // point to this function (the use of __cxa_exception in fillUnoException is + // unaffected, as it only accesses members towards the start of the struct, + // through a pointer known to actually point at the start). The libcxxabi commit + // <https://github.com/llvm/llvm-project/commit/9ef1daa46edb80c47d0486148c0afc4e0d83ddcf> + // "Insert padding before the __cxa_exception header to ensure the thrown" in LLVM 6 + // removes the need for this hack, so the "header1" hack can be removed again once we can be + // sure that we only run against libcxxabi from LLVM >= 6. + // + // Second, the libcxxabi commit + // <https://github.com/llvm/llvm-project/commit/674ec1eb16678b8addc02a4b0534ab383d22fa77> + // "[libcxxabi] Insert padding in __cxa_exception struct for compatibility" in LLVM 10 changed + // the layout of the start of __cxa_exception to + // + // [8 byte void *reserve] + // 8 byte size_t referenceCount + // + // so the "header2" hack below to dynamically determine whether we run against a LLVM >= 10 + // libcxxabi is to look whether the exceptionDestructor (with its known value) has increased its + // offset by 8. As described in the definition of __cxa_exception + // (bridges/source/cpp_uno/gcc3_linux_x86-64/share.hxx), the "header2" hack (together with the + // "#if 0" in the definition of __cxa_exception and the corresponding hack in fillUnoException) + // can be dropped once we can be sure that we only run against new libcxxabi that has the + // reserve member. + if (header->exceptionDestructor != &deleteException) { + auto const header1 = reinterpret_cast<__cxa_exception const *>( + reinterpret_cast<char const *>(header) - 8); + if (header1->exceptionDestructor == &deleteException) { + header = header1; + } else { + auto const header2 = reinterpret_cast<__cxa_exception const *>( + reinterpret_cast<char const *>(header) + 8); + if (header2->exceptionDestructor == &deleteException) { + header = header2; + } else { + assert(false); + } + } + } +#endif + assert(header->exceptionDestructor == &deleteException); + typelib_TypeDescription * pTD = nullptr; + OUString unoName( toUNOname( header->exceptionType->name() ) ); + ::typelib_typedescription_getByName( &pTD, unoName.pData ); + assert(pTD && "### unknown exception type! leaving out destruction => leaking!!!"); + if (pTD) + { + ::uno_destructData( pExc, pTD, cpp_release ); + ::typelib_typedescription_release( pTD ); + } +} +} + +void raiseException( uno_Any * pUnoExc, uno_Mapping * pUno2Cpp ) +{ +#if OSL_DEBUG_LEVEL > 1 + OString cstr( + OUStringToOString( + OUString::unacquired( &pUnoExc->pType->pTypeName ), + RTL_TEXTENCODING_ASCII_US ) ); + fprintf( stderr, "> uno exception occurred: %s\n", cstr.getStr() ); +#endif + void * pCppExc; + type_info * rtti; + + { + // construct cpp exception object + typelib_TypeDescription * pTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pTypeDescr, pUnoExc->pType ); + assert(pTypeDescr); + if (! pTypeDescr) + { + throw RuntimeException( + "cannot get typedescription for type " + + OUString::unacquired( &pUnoExc->pType->pTypeName ) ); + } + + pCppExc = __cxxabiv1::__cxa_allocate_exception( pTypeDescr->nSize ); + ::uno_copyAndConvertData( pCppExc, pUnoExc->pData, pTypeDescr, pUno2Cpp ); + + // destruct uno exception + ::uno_any_destruct( pUnoExc, nullptr ); + // avoiding locked counts + rtti = x86_64::getRtti(*pTypeDescr); + TYPELIB_DANGER_RELEASE( pTypeDescr ); + assert(rtti && "### no rtti for throwing exception!"); + if (! rtti) + { + throw RuntimeException( + "no rtti for type " + + OUString::unacquired( &pUnoExc->pType->pTypeName ) ); + } + } + + __cxxabiv1::__cxa_throw( pCppExc, rtti, deleteException ); +} + +void fillUnoException(uno_Any * pUnoExc, uno_Mapping * pCpp2Uno) +{ + __cxxabiv1::__cxa_exception * header = __cxxabiv1::__cxa_get_globals()->caughtExceptions; + if (! header) + { + RuntimeException aRE( "no exception header!" ); + Type const & rType = cppu::UnoType<decltype(aRE)>::get(); + uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); + SAL_WARN("bridges", aRE.Message); + return; + } + +#if defined _LIBCPPABI_VERSION // detect libc++abi + // Very bad HACK to find out whether we run against a libcxxabi that has a new + // __cxa_exception::reserved member at the start, introduced with LLVM 10 + // <https://github.com/llvm/llvm-project/commit/674ec1eb16678b8addc02a4b0534ab383d22fa77> + // "[libcxxabi] Insert padding in __cxa_exception struct for compatibility". The layout of the + // start of __cxa_exception is + // + // [8 byte void *reserve] + // 8 byte size_t referenceCount + // + // where the (bad, hacky) assumption is that reserve (if present) is null + // (__cxa_allocate_exception in at least LLVM 11 zero-fills the object, and nothing actively + // sets reserve) while referenceCount is non-null (__cxa_throw sets it to 1, and + // __cxa_decrement_exception_refcount destroys the exception as soon as it drops to 0; for a + // __cxa_dependent_exception, the referenceCount member is rather + // + // 8 byte void* primaryException + // + // but which also will always be set to a non-null value in __cxa_rethrow_primary_exception). + // As described in the definition of __cxa_exception + // (bridges/source/cpp_uno/gcc3_linux_x86-64/share.hxx), this hack (together with the "#if 0" + // there) can be dropped once we can be sure that we only run against new libcxxabi that has the + // reserve member: + if (*reinterpret_cast<void **>(header) == nullptr) { + header = reinterpret_cast<__cxxabiv1::__cxa_exception*>(reinterpret_cast<void **>(header) + 1); + } +#endif + + std::type_info *exceptionType = __cxxabiv1::__cxa_current_exception_type(); + + typelib_TypeDescription * pExcTypeDescr = nullptr; + OUString unoName( toUNOname( exceptionType->name() ) ); +#if OSL_DEBUG_LEVEL > 1 + OString cstr_unoName( OUStringToOString( unoName, RTL_TEXTENCODING_ASCII_US ) ); + fprintf( stderr, "> c++ exception occurred: %s\n", cstr_unoName.getStr() ); +#endif + typelib_typedescription_getByName( &pExcTypeDescr, unoName.pData ); + if (pExcTypeDescr == nullptr) + { + RuntimeException aRE( "exception type not found: " + unoName ); + Type const & rType = cppu::UnoType<decltype(aRE)>::get(); + uno_type_any_constructAndConvert( pUnoExc, &aRE, rType.getTypeLibType(), pCpp2Uno ); + SAL_WARN("bridges", aRE.Message); + } + else + { + // construct uno exception any + uno_any_constructAndConvert( pUnoExc, header->adjustedPtr, pExcTypeDescr, pCpp2Uno ); + typelib_typedescription_release( pExcTypeDescr ); + } +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.cxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.cxx new file mode 100644 index 000000000..f36ca6431 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.cxx @@ -0,0 +1,274 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/config.h> + +#include <cassert> +#include <memory> +#include <mutex> +#include <typeinfo> +#include <unordered_map> +#include <utility> +#include <vector> + +#include <dlfcn.h> + +#include <rtl/strbuf.hxx> +#include <rtl/ustring.hxx> +#include <sal/log.hxx> +#include <typelib/typedescription.h> +#include <o3tl/string_view.hxx> + +#include "rtti.hxx" +#include "share.hxx" + +namespace { + +class Generated { +public: + virtual ~Generated() {}; + + virtual std::type_info * get() const = 0; +}; + +class GeneratedPlain: public Generated { +public: + GeneratedPlain(std::unique_ptr<std::type_info> && info): info_(std::move(info)) {}; + + std::type_info * get() const override { return info_.get(); } + +private: + std::unique_ptr<std::type_info> info_; +}; + +class GeneratedPad: public Generated { +public: + GeneratedPad(std::unique_ptr<char[]> && pad): pad_(std::move(pad)) {}; + + ~GeneratedPad() override { get()->~type_info(); } + + std::type_info * get() const override final + { return reinterpret_cast<std::type_info *>(pad_.get()); } + +private: + std::unique_ptr<char[]> pad_; +}; + +class RTTI +{ + typedef std::unordered_map< OUString, std::type_info * > t_rtti_map; + + t_rtti_map m_rttis; + std::vector<OString> m_rttiNames; + std::unordered_map<OUString, std::unique_ptr<Generated>> m_generatedRttis; + +#if !defined ANDROID + void * m_hApp; +#endif + +public: + RTTI(); + ~RTTI(); + + std::type_info * getRTTI(typelib_TypeDescription const &); +}; + +RTTI::RTTI() +#if !defined ANDROID + : m_hApp( dlopen( nullptr, RTLD_LAZY ) ) +#endif +{ +} + +RTTI::~RTTI() +{ +#if !defined ANDROID + dlclose( m_hApp ); +#endif +} + +std::type_info * RTTI::getRTTI(typelib_TypeDescription const & pTypeDescr) +{ + OUString const & unoName = OUString::unacquired(&pTypeDescr.pTypeName); + + t_rtti_map::const_iterator iFind( m_rttis.find( unoName ) ); + if (iFind != m_rttis.end()) + return iFind->second; + + std::type_info * rtti; + + // RTTI symbol + OStringBuffer buf( 64 ); + buf.append( "_ZTIN" ); + sal_Int32 index = 0; + do + { + std::u16string_view token( o3tl::getToken(unoName, 0, '.', index ) ); + buf.append( static_cast<sal_Int32>(token.size()) ); + OString c_token( OUStringToOString( token, RTL_TEXTENCODING_ASCII_US ) ); + buf.append( c_token ); + } + while (index >= 0); + buf.append( 'E' ); + + OString symName( buf.makeStringAndClear() ); +#if !defined ANDROID + rtti = static_cast<std::type_info *>(dlsym( m_hApp, symName.getStr() )); +#else + rtti = static_cast<std::type_info *>(dlsym( RTLD_DEFAULT, symName.getStr() )); +#endif + + if (rtti) + { + std::pair< t_rtti_map::iterator, bool > insertion ( + m_rttis.insert( t_rtti_map::value_type( unoName, rtti ) ) ); + SAL_WARN_IF( !insertion.second, "bridges", "key " << unoName << " already in rtti map" ); + return rtti; + } + + // try to lookup the symbol in the generated rtti map + auto iFind2( m_generatedRttis.find( unoName ) ); + if (iFind2 != m_generatedRttis.end()) + { + // taking already generated rtti + rtti = iFind2->second->get(); + return rtti; + } + + // we must generate it ! + // symbol and rtti-name is nearly identical, + // the symbol is prefixed with _ZTI + char const * rttiName = symName.getStr() +4; + + SAL_INFO("bridges", "Generated rtti for" << rttiName); + + std::unique_ptr<Generated> newRtti; + switch (pTypeDescr.eTypeClass) { + case typelib_TypeClass_EXCEPTION: + { + typelib_CompoundTypeDescription const & ctd + = reinterpret_cast< + typelib_CompoundTypeDescription const &>( + pTypeDescr); + if (ctd.pBaseTypeDescription) + { + // ensure availability of base + std::type_info * base_rtti = getRTTI( + ctd.pBaseTypeDescription->aBase); + m_rttiNames.emplace_back(OString(rttiName)); + std::unique_ptr<std::type_info> info( + new __cxxabiv1::__si_class_type_info( + m_rttiNames.back().getStr(), static_cast<__cxxabiv1::__class_type_info *>(base_rtti) )); + newRtti.reset(new GeneratedPlain(std::move(info))); + } + else + { + // this class has no base class + m_rttiNames.emplace_back(OString(rttiName)); + std::unique_ptr<std::type_info> info( + new __cxxabiv1::__class_type_info(m_rttiNames.back().getStr())); + newRtti.reset(new GeneratedPlain(std::move(info))); + } + break; + } + case typelib_TypeClass_INTERFACE: + { + typelib_InterfaceTypeDescription const & itd + = reinterpret_cast< + typelib_InterfaceTypeDescription const &>( + pTypeDescr); + std::vector<std::type_info *> bases; + for (sal_Int32 i = 0; i != itd.nBaseTypes; ++i) { + bases.push_back(getRTTI(itd.ppBaseTypes[i]->aBase)); + } + switch (itd.nBaseTypes) { + case 0: + { + m_rttiNames.emplace_back(OString(rttiName)); + std::unique_ptr<std::type_info> info( + new __cxxabiv1::__class_type_info( + m_rttiNames.back().getStr())); + newRtti.reset(new GeneratedPlain(std::move(info))); + break; + } + case 1: + { + m_rttiNames.emplace_back(OString(rttiName)); + std::unique_ptr<std::type_info> info( + new __cxxabiv1::__si_class_type_info( + m_rttiNames.back().getStr(), + static_cast< + __cxxabiv1::__class_type_info *>( + bases[0]))); + newRtti.reset(new GeneratedPlain(std::move(info))); + break; + } + default: + { + m_rttiNames.emplace_back(OString(rttiName)); + auto pad = std::make_unique<char[]>( + sizeof (__cxxabiv1::__vmi_class_type_info) + + ((itd.nBaseTypes - 1) + * sizeof ( + __cxxabiv1::__base_class_type_info))); + __cxxabiv1::__vmi_class_type_info * info + = new(pad.get()) + __cxxabiv1::__vmi_class_type_info( + m_rttiNames.back().getStr(), + __cxxabiv1::__vmi_class_type_info::__flags_unknown_mask); + info->__base_count = itd.nBaseTypes; + for (sal_Int32 i = 0; i != itd.nBaseTypes; ++i) + { + info->__base_info[i].__base_type + = static_cast< + __cxxabiv1::__class_type_info *>( + bases[i]); + info->__base_info[i].__offset_flags + = (__cxxabiv1::__base_class_type_info::__public_mask + | ((8 * i) << __cxxabiv1::__base_class_type_info::__offset_shift)); + } + newRtti.reset(new GeneratedPad(std::move(pad))); + break; + } + } + break; + } + default: + assert(false); // cannot happen + } + rtti = newRtti->get(); + if (newRtti) { + auto insertion ( + m_generatedRttis.emplace(unoName, std::move(newRtti))); + SAL_WARN_IF( !insertion.second, "bridges", "key " << unoName << " already in generated rtti map" ); + } + + return rtti; +} + +} + +std::type_info * x86_64::getRtti(typelib_TypeDescription const & type) { + static RTTI theRttiFactory; + static std::mutex theMutex; + std::lock_guard aGuard(theMutex); + return theRttiFactory.getRTTI(type); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.hxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.hxx new file mode 100644 index 000000000..b056f2e64 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/rtti.hxx @@ -0,0 +1,33 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#include <sal/config.h> + +#include <typeinfo> + +#include <typelib/typedescription.h> + +namespace x86_64 +{ +std::type_info* getRtti(typelib_TypeDescription const& type); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/share.hxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/share.hxx new file mode 100644 index 000000000..d7657bcc0 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/share.hxx @@ -0,0 +1,191 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/config.h> + +#include <typeinfo> +#include <exception> +#include <cstddef> + +#include <cxxabi.h> +#ifndef _GLIBCXX_CDTOR_CALLABI // new in GCC 4.7 cxxabi.h +#define _GLIBCXX_CDTOR_CALLABI +#endif +#include <unwind.h> + +#include <config_cxxabi.h> +#include <uno/any2.h> +#include <uno/mapping.h> + +#if !HAVE_CXXABI_H_CLASS_TYPE_INFO +// <https://mentorembedded.github.io/cxx-abi/abi.html>, +// libstdc++-v3/libsupc++/cxxabi.h: +namespace __cxxabiv1 { +class __class_type_info: public std::type_info { +public: + explicit __class_type_info(char const * n): type_info(n) {} + ~__class_type_info() override; +}; +} +#endif + +#if !HAVE_CXXABI_H_SI_CLASS_TYPE_INFO +// <https://mentorembedded.github.io/cxx-abi/abi.html>, +// libstdc++-v3/libsupc++/cxxabi.h: +namespace __cxxabiv1 { +class __si_class_type_info: public __class_type_info { +public: + __class_type_info const * __base_type; + explicit __si_class_type_info( + char const * n, __class_type_info const *base): + __class_type_info(n), __base_type(base) {} + ~__si_class_type_info() override; +}; +} +#endif + +#if !HAVE_CXXABI_H_BASE_CLASS_TYPE_INFO +// <https://mentorembedded.github.io/cxx-abi/abi.html>, +// libstdc++-v3/libsupc++/cxxabi.h: +namespace __cxxabiv1 { +struct __base_class_type_info { + __class_type_info const * __base_type; +#if defined _GLIBCXX_LLP64 + long long __offset_flags; +#else + long __offset_flags; +#endif + enum __offset_flags_masks { + __virtual_mask = 0x1, + __public_mask = 0x2, + __offset_shift = 8 + }; +}; +} +#endif + +#if !HAVE_CXXABI_H_VMI_CLASS_TYPE_INFO +// <https://mentorembedded.github.io/cxx-abi/abi.html>, +// libstdc++-v3/libsupc++/cxxabi.h: +namespace __cxxabiv1 { +class __vmi_class_type_info: public __class_type_info { +public: + unsigned int __flags; + unsigned int __base_count; + __base_class_type_info __base_info[1]; + enum __flags_masks { + __non_diamond_repeat_mask = 0x1, + __diamond_shaped_mask = 0x2, + __flags_unknown_mask = 0x10 + }; + explicit __vmi_class_type_info(char const * n, int flags): + __class_type_info(n), __flags(flags), __base_count(0) {} + ~__vmi_class_type_info() override; +}; +} +#endif + +#if !HAVE_CXXABI_H_CXA_EXCEPTION +// <https://mentorembedded.github.io/cxx-abi/abi-eh.html>, +// libcxxabi/src/cxa_exception.hpp: +namespace __cxxabiv1 { +struct __cxa_exception { +#if defined _LIBCPPABI_VERSION // detect libc++abi +#if defined __LP64__ || LIBCXXABI_ARM_EHABI +#if 0 + // This is a new field added with LLVM 10 + // <https://github.com/llvm/llvm-project/commit/674ec1eb16678b8addc02a4b0534ab383d22fa77> + // "[libcxxabi] Insert padding in __cxa_exception struct for compatibility". The HACK in + // fillUnoException (bridges/source/cpp_uno/gcc3_linux_x86-64/except.cxx) tries to find out at + // runtime whether a __cxa_exception has this member. Once we can be sure that we only run + // against new libcxxabi that has this member, we can drop the "#if 0" here and drop the hack + // in fillUnoException. + + // Now _Unwind_Exception is marked with __attribute__((aligned)), + // which implies __cxa_exception is also aligned. Insert padding + // in the beginning of the struct, rather than before unwindHeader. + void *reserve; +#endif + std::size_t referenceCount; +#endif +#endif + std::type_info * exceptionType; + void (* exceptionDestructor)(void *); + void (*unexpectedHandler)(); // std::unexpected_handler dropped from C++17 + std::terminate_handler terminateHandler; + __cxa_exception * nextException; + int handlerCount; + int handlerSwitchValue; + char const * actionRecord; + char const * languageSpecificData; + void * catchTemp; + void * adjustedPtr; + _Unwind_Exception unwindHeader; +}; +} +#endif + +#if !HAVE_CXXABI_H_CXA_EH_GLOBALS +// <https://mentorembedded.github.io/cxx-abi/abi-eh.html>: +namespace __cxxabiv1 { +struct __cxa_eh_globals { + __cxa_exception * caughtExceptions; + unsigned int uncaughtExceptions; +}; +} +#endif + +#if !HAVE_CXXABI_H_CXA_GET_GLOBALS +namespace __cxxabiv1 { +extern "C" __cxa_eh_globals * __cxa_get_globals() noexcept; +} +#endif + +#if !HAVE_CXXABI_H_CXA_CURRENT_EXCEPTION_TYPE +namespace __cxxabiv1 { +extern "C" std::type_info *__cxa_current_exception_type() noexcept; +} +#endif + +#if !HAVE_CXXABI_H_CXA_ALLOCATE_EXCEPTION +namespace __cxxabiv1 { +extern "C" void * __cxa_allocate_exception(std::size_t thrown_size) noexcept; +} +#endif + +#if !HAVE_CXXABI_H_CXA_THROW +namespace __cxxabiv1 { +extern "C" void __cxa_throw( + void * thrown_exception, void * tinfo, void (* dest)(void *)) + __attribute__((noreturn)); +} +#endif + +extern "C" void privateSnippetExecutor( ... ); + +namespace CPPU_CURRENT_NAMESPACE +{ + +void raiseException( + uno_Any * pUnoExc, uno_Mapping * pUno2Cpp ); + +void fillUnoException(uno_Any *, uno_Mapping * pCpp2Uno); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/bridges/source/cpp_uno/gcc3_linux_x86-64/uno2cpp.cxx b/bridges/source/cpp_uno/gcc3_linux_x86-64/uno2cpp.cxx new file mode 100644 index 000000000..496702120 --- /dev/null +++ b/bridges/source/cpp_uno/gcc3_linux_x86-64/uno2cpp.cxx @@ -0,0 +1,437 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/alloca.h> + +#include <exception> +#include <typeinfo> + +#include <rtl/alloc.h> + +#include <com/sun/star/uno/genfunc.hxx> +#include <com/sun/star/uno/RuntimeException.hpp> +#include <o3tl/runtimetooustring.hxx> +#include <uno/data.h> + +#include <bridge.hxx> +#include <types.hxx> +#include <unointerfaceproxy.hxx> +#include <vtables.hxx> + +#include "abi.hxx" +#include "callvirtualmethod.hxx" +#include "share.hxx" + +using namespace ::com::sun::star::uno; + +namespace { + +// Functions for easier insertion of values to registers or stack +// pSV - pointer to the source +// nr - order of the value [will be increased if stored to register] +// pFPR, pGPR - pointer to the registers +// pDS - pointer to the stack [will be increased if stored here] + +// The value in %xmm register is already prepared to be retrieved as a float, +// thus we treat float and double the same +void INSERT_FLOAT_DOUBLE( + void const * pSV, sal_uInt32 & nr, double * pFPR, sal_uInt64 *& pDS) +{ + if ( nr < x86_64::MAX_SSE_REGS ) + pFPR[nr++] = *static_cast<double const *>( pSV ); + else + *pDS++ = *static_cast<sal_uInt64 const *>( pSV ); // verbatim! +} + +void INSERT_INT64( + void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS) +{ + if ( nr < x86_64::MAX_GPR_REGS ) + pGPR[nr++] = *static_cast<sal_uInt64 const *>( pSV ); + else + *pDS++ = *static_cast<sal_uInt64 const *>( pSV ); +} + +void INSERT_INT32( + void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS) +{ + if ( nr < x86_64::MAX_GPR_REGS ) + pGPR[nr++] = *static_cast<sal_uInt32 const *>( pSV ); + else + *pDS++ = *static_cast<sal_uInt32 const *>( pSV ); +} + +void INSERT_INT16( + void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS) +{ + if ( nr < x86_64::MAX_GPR_REGS ) + pGPR[nr++] = *static_cast<sal_uInt16 const *>( pSV ); + else + *pDS++ = *static_cast<sal_uInt16 const *>( pSV ); +} + +void INSERT_INT8( + void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS) +{ + if ( nr < x86_64::MAX_GPR_REGS ) + pGPR[nr++] = *static_cast<sal_uInt8 const *>( pSV ); + else + *pDS++ = *static_cast<sal_uInt8 const *>( pSV ); +} + +} + +static void cpp_call( + bridges::cpp_uno::shared::UnoInterfaceProxy * pThis, + bridges::cpp_uno::shared::VtableSlot aVtableSlot, + typelib_TypeDescriptionReference * pReturnTypeRef, + sal_Int32 nParams, typelib_MethodParameter * pParams, + void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc ) +{ + // Maximum space for [complex ret ptr], values | ptr ... + // (but will be used less - some of the values will be in pGPR and pFPR) + sal_uInt64 *pStack = static_cast<sal_uInt64 *>(__builtin_alloca( (nParams + 3) * sizeof(sal_uInt64) )); + sal_uInt64 *pStackStart = pStack; + + sal_uInt64 pGPR[x86_64::MAX_GPR_REGS]; + sal_uInt32 nGPR = 0; + + double pFPR[x86_64::MAX_SSE_REGS]; + sal_uInt32 nFPR = 0; + + // Return + typelib_TypeDescription * pReturnTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef ); + assert(pReturnTypeDescr); + + void * pCppReturn = nullptr; // if != 0 && != pUnoReturn, needs reconversion (see below) + + bool bSimpleReturn = true; + if ( pReturnTypeDescr ) + { + if ( x86_64::return_in_hidden_param( pReturnTypeRef ) ) + bSimpleReturn = false; + + if ( bSimpleReturn ) + pCppReturn = pUnoReturn; // direct way for simple types + else + { + // complex return via ptr + pCppReturn = bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )? + __builtin_alloca( pReturnTypeDescr->nSize ) : pUnoReturn; + INSERT_INT64( &pCppReturn, nGPR, pGPR, pStack ); + } + } + + // Push "this" pointer + void * pAdjustedThisPtr = reinterpret_cast< void ** >( pThis->getCppI() ) + aVtableSlot.offset; + INSERT_INT64( &pAdjustedThisPtr, nGPR, pGPR, pStack ); + + // Args + void ** pCppArgs = static_cast<void **>(alloca( 3 * sizeof(void *) * nParams )); + // Indices of values this have to be converted (interface conversion cpp<=>uno) + sal_Int32 * pTempIndices = reinterpret_cast<sal_Int32 *>(pCppArgs + nParams); + // Type descriptions for reconversions + typelib_TypeDescription ** ppTempParamTypeDescr = reinterpret_cast<typelib_TypeDescription **>(pCppArgs + (2 * nParams)); + + sal_Int32 nTempIndices = 0; + + for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos ) + { + const typelib_MethodParameter & rParam = pParams[nPos]; + typelib_TypeDescription * pParamTypeDescr = nullptr; + TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef ); + + if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) + { + pCppArgs[nPos] = alloca( 8 ); + uno_copyAndConvertData( pCppArgs[nPos], pUnoArgs[nPos], pParamTypeDescr, + pThis->getBridge()->getUno2Cpp() ); + + switch (pParamTypeDescr->eTypeClass) + { + case typelib_TypeClass_HYPER: + case typelib_TypeClass_UNSIGNED_HYPER: + INSERT_INT64( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_LONG: + case typelib_TypeClass_UNSIGNED_LONG: + case typelib_TypeClass_ENUM: + INSERT_INT32( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_SHORT: + case typelib_TypeClass_CHAR: + case typelib_TypeClass_UNSIGNED_SHORT: + INSERT_INT16( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_BOOLEAN: + case typelib_TypeClass_BYTE: + INSERT_INT8( pCppArgs[nPos], nGPR, pGPR, pStack ); + break; + case typelib_TypeClass_FLOAT: + case typelib_TypeClass_DOUBLE: + INSERT_FLOAT_DOUBLE( pCppArgs[nPos], nFPR, pFPR, pStack ); + break; + default: + break; + } + + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + else // ptr to complex value | ref + { + if (! rParam.bIn) // is pure out + { + // cpp out is constructed mem, uno out is not! + pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ); + uno_constructData( pCppArgs[nPos], pParamTypeDescr ); + pTempIndices[nTempIndices] = nPos; // default constructed for cpp call + // will be released at reconversion + ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; + } + // is in/inout + else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr )) + { + pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ); + uno_copyAndConvertData( + pCppArgs[nPos], pUnoArgs[nPos], pParamTypeDescr, pThis->getBridge()->getUno2Cpp() ); + + pTempIndices[nTempIndices] = nPos; // has to be reconverted + // will be released at reconversion + ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr; + } + else // direct way + { + pCppArgs[nPos] = pUnoArgs[nPos]; + // no longer needed + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + INSERT_INT64( &(pCppArgs[nPos]), nGPR, pGPR, pStack ); + } + } + + try + { + try { + CPPU_CURRENT_NAMESPACE::callVirtualMethod( + pAdjustedThisPtr, aVtableSlot.index, + pCppReturn, pReturnTypeRef, bSimpleReturn, + pStackStart, ( pStack - pStackStart ), + pGPR, pFPR ); + } catch (const Exception &) { + throw; + } catch (const std::exception & e) { + throw RuntimeException( + "C++ code threw " + o3tl::runtimeToOUString(typeid(e).name()) + + ": " + o3tl::runtimeToOUString(e.what())); + } catch (...) { + throw RuntimeException("C++ code threw unknown exception"); + } + + *ppUnoExc = nullptr; + + // reconvert temporary params + for ( ; nTempIndices--; ) + { + sal_Int32 nIndex = pTempIndices[nTempIndices]; + typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices]; + + if (pParams[nIndex].bIn) + { + if (pParams[nIndex].bOut) // inout + { + uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, nullptr ); // destroy uno value + uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + } + } + else // pure out + { + uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + } + // destroy temp cpp param => cpp: every param was constructed + uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release ); + + TYPELIB_DANGER_RELEASE( pParamTypeDescr ); + } + // return value + if (pCppReturn && pUnoReturn != pCppReturn) + { + uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr, + pThis->getBridge()->getCpp2Uno() ); + uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release ); + } + } + catch (...) + { + // fill uno exception + CPPU_CURRENT_NAMESPACE::fillUnoException(*ppUnoExc, pThis->getBridge()->getCpp2Uno()); + + // temporary params + for ( ; nTempIndices--; ) + { + sal_Int32 nIndex = pTempIndices[nTempIndices]; + // destroy temp cpp param => cpp: every param was constructed + uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndices], cpp_release ); + TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] ); + } + // return type + if (pReturnTypeDescr) + TYPELIB_DANGER_RELEASE( pReturnTypeDescr ); + } +} + + +namespace bridges::cpp_uno::shared { + +void unoInterfaceProxyDispatch( + uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr, + void * pReturn, void * pArgs[], uno_Any ** ppException ) +{ + // is my surrogate + bridges::cpp_uno::shared::UnoInterfaceProxy * pThis + = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI); + + switch (pMemberDescr->eTypeClass) + { + case typelib_TypeClass_INTERFACE_ATTRIBUTE: + { + assert( + (reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberDescr) + ->nPosition) + < pThis->pTypeDescr->nAllMembers); + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast< + typelib_InterfaceAttributeTypeDescription const * >( + pMemberDescr))); + + if (pReturn) + { + // dependent dispatch + cpp_call( + pThis, aVtableSlot, + reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(pMemberDescr)->pAttributeTypeRef, + 0, nullptr, // no params + pReturn, pArgs, ppException ); + } + else + { + // is SET + typelib_MethodParameter aParam; + aParam.pTypeRef = + reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(pMemberDescr)->pAttributeTypeRef; + aParam.bIn = true; + aParam.bOut = false; + + typelib_TypeDescriptionReference * pReturnTypeRef = nullptr; + OUString aVoidName("void"); + typelib_typedescriptionreference_new( + &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData ); + + // dependent dispatch + aVtableSlot.index += 1; // get, then set method + cpp_call( + pThis, aVtableSlot, // get, then set method + pReturnTypeRef, + 1, &aParam, + pReturn, pArgs, ppException ); + + typelib_typedescriptionreference_release( pReturnTypeRef ); + } + + break; + } + case typelib_TypeClass_INTERFACE_METHOD: + { + assert( + (reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberDescr) + ->nPosition) + < pThis->pTypeDescr->nAllMembers); + VtableSlot aVtableSlot( + getVtableSlot( + reinterpret_cast< + typelib_InterfaceMethodTypeDescription const * >( + pMemberDescr))); + + switch (aVtableSlot.index) + { + // standard calls + case 1: // acquire uno interface + (*pUnoI->acquire)( pUnoI ); + *ppException = nullptr; + break; + case 2: // release uno interface + (*pUnoI->release)( pUnoI ); + *ppException = nullptr; + break; + case 0: // queryInterface() opt + { + typelib_TypeDescription * pTD = nullptr; + TYPELIB_DANGER_GET( &pTD, static_cast< Type * >( pArgs[0] )->getTypeLibType() ); + if (pTD) + { + uno_Interface * pInterface = nullptr; + (*pThis->getBridge()->getUnoEnv()->getRegisteredInterface)( + pThis->getBridge()->getUnoEnv(), + reinterpret_cast<void **>(&pInterface), pThis->oid.pData, reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD) ); + + if (pInterface) + { + ::uno_any_construct( + static_cast< uno_Any * >( pReturn ), + &pInterface, pTD, nullptr ); + (*pInterface->release)( pInterface ); + TYPELIB_DANGER_RELEASE( pTD ); + *ppException = nullptr; + break; + } + TYPELIB_DANGER_RELEASE( pTD ); + } + [[fallthrough]]; // else perform queryInterface() + } + default: + // dependent dispatch + cpp_call( + pThis, aVtableSlot, + reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberDescr)->pReturnTypeRef, + reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberDescr)->nParams, + reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberDescr)->pParams, + pReturn, pArgs, ppException ); + } + break; + } + default: + { + ::com::sun::star::uno::RuntimeException aExc( + "illegal member type description!", + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() ); + + Type const & rExcType = cppu::UnoType<decltype(aExc)>::get(); + // binary identical null reference + ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), nullptr ); + } + } +} + +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |