9f5227d66b
Putting the privateSnippetExecutor() assembly code as inline asm inside an otherwise empty C++ function helps, for some reason. Use the actual _Unwnd_Exception and __cxa_exception definitions as used by Apple (from opensource.apple.com libunwind and libcppabi sources) instead of guessing. Change-Id: I1ef22a9c0c664d3a357b9a6474406141f53cc490
74 lines
2.9 KiB
C++
74 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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extern "C" void
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privateSnippetExecutor()
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{
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asm volatile
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(
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" subq $160, %rsp\n"
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" movq %r10, -152(%rbp) # Save (nVtableOffset << 32) + nFunctionIndex\n"
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" movq %rdi, -112(%rbp) # Save GP registers\n"
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" movq %rsi, -104(%rbp)\n"
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" movq %rdx, -96(%rbp)\n"
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" movq %rcx, -88(%rbp)\n"
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" movq %r8 , -80(%rbp)\n"
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" movq %r9 , -72(%rbp)\n"
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" movsd %xmm0, -64(%rbp) # Save FP registers\n"
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" movsd %xmm1, -56(%rbp)\n"
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" movsd %xmm2, -48(%rbp)\n"
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" movsd %xmm3, -40(%rbp)\n"
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" movsd %xmm4, -32(%rbp)\n"
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" movsd %xmm5, -24(%rbp)\n"
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" movsd %xmm6, -16(%rbp)\n"
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" movsd %xmm7, -8(%rbp)\n"
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" leaq -144(%rbp), %r9 # 6th param: sal_uInt64 * pRegisterReturn\n"
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" leaq 16(%rbp), %r8 # 5rd param: void ** ovrflw\n"
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" leaq -64(%rbp), %rcx # 4th param: void ** fpreg\n"
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" leaq -112(%rbp), %rdx # 3rd param: void ** gpreg\n"
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" movl -148(%rbp), %esi # 2nd param: sal_int32 nVtableOffset\n"
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" movl -152(%rbp), %edi # 1st param: sal_int32 nFunctionIndex\n"
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" call _cpp_vtable_call\n"
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" cmp $10, %rax # typelib_TypeClass_FLOAT\n"
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" je .Lfloat\n"
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" cmp $11, %rax # typelib_TypeClass_DOUBLE\n"
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" je .Lfloat\n"
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" movq -144(%rbp), %rax # Return value (int case)\n"
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" movq -136(%rbp), %rdx # Return value (int case)\n"
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" movq -144(%rbp), %xmm0 # Return value (int case)\n"
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" movq -136(%rbp), %xmm1 # Return value (int case)\n"
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" jmp .Lfinish\n"
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".Lfloat:\n"
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" movlpd -144(%rbp), %xmm0 # Return value (float/double case)\n"
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".Lfinish:\n"
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" addq $160, %rsp\n"
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);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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