Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 331 insertions, 0 deletions

diff --git a/bridges/source/cpp_uno/gcc3_macosx_x86-64/abi.cxx b/bridges/source/cpp_uno/gcc3_macosx_x86-64/abi.cxx
new file mode 100644
index 000000000..ceed901f9
--- /dev/null
+++ b/bridges/source/cpp_uno/gcc3_macosx_x86-64/abi.cxx
@@ -0,0 +1,331 @@
+/* -*- 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 <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_SSEDF_CLASS,
+    X86_64_SSEUP_CLASS,
+    X86_64_X87_CLASS,
+    X86_64_X87UP_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)
+    throw ()
+{
+    /* 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 #5: If one of the classes is X87 or X87UP class, MEMORY is used.  */
+    if (class1 == X86_64_X87_CLASS || class1 == X86_64_X87UP_CLASS
+            || class2 == X86_64_X87_CLASS || class2 == X86_64_X87UP_CLASS)
+        return X86_64_MEMORY_CLASS;
+
+    /* Rule #6: Otherwise class SSE is used.  */
+    return X86_64_SSE_CLASS;
+}
+
+/* Classify the argument of type TYPE and mode MODE.
+   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 parameter
+   should be passed in memory, 0 is returned. As a special case for zero
+   sized containers, classes[0] will be NO_CLASS and 1 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 ) throw ()
+{
+    switch ( pTypeRef->eTypeClass )
+    {
+        case typelib_TypeClass_VOID:
+            classes[0] = X86_64_NO_CLASS;
+            return 1;
+        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_SSEDF_CLASS;
+            return 1;
+        /*case LONGDOUBLE:
+            classes[0] = X86_64_X87_CLASS;
+            classes[1] = X86_64_X87UP_CLASS;
+            return 2;*/
+        case typelib_TypeClass_STRING:
+        case typelib_TypeClass_TYPE:
+        case typelib_TypeClass_ANY:
+        case typelib_TypeClass_TYPEDEF:
+        case typelib_TypeClass_SEQUENCE:
+        case typelib_TypeClass_INTERFACE:
+            return 0;
+        case typelib_TypeClass_STRUCT:
+        case typelib_TypeClass_EXCEPTION:
+            {
+                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] );
+                    }
+                }
+
+                TYPELIB_DANGER_RELEASE( pTypeDescr );
+
+                /* Final merger cleanup.  */
+                for ( int i = 0; i < words; i++ )
+                {
+                    /* If one class is MEMORY, everything should be passed in
+                       memory.  */
+                    if ( classes[i] == X86_64_MEMORY_CLASS )
+                        return 0;
+
+                    /* The X86_64_SSEUP_CLASS should be always preceded by
+                       X86_64_SSE_CLASS.  */
+                    if ( classes[i] == X86_64_SSEUP_CLASS
+                            && ( i == 0 || classes[i - 1] != X86_64_SSE_CLASS ) )
+                        classes[i] = X86_64_SSE_CLASS;
+
+                    /*  X86_64_X87UP_CLASS should be preceded by X86_64_X87_CLASS.  */
+                    if ( classes[i] == X86_64_X87UP_CLASS
+                            && ( i == 0 || classes[i - 1] != X86_64_X87_CLASS ) )
+                        classes[i] = X86_64_SSE_CLASS;
+                }
+                return words;
+            }
+
+        default:
+            SAL_WARN("bridges", "Unhandled case: pType->eTypeClass == "
+                    << pTypeRef->eTypeClass);
+            assert(false);
+    }
+    return 0; /* Never reached.  */
+}
+
+/* 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, bool bInReturn, int &nUsedGPR, int &nUsedSSE ) throw ()
+{
+    enum x86_64_reg_class classes[MAX_CLASSES];
+    int n;
+
+    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:
+            case X86_64_SSEDF_CLASS:
+                nUsedSSE++;
+                break;
+            case X86_64_NO_CLASS:
+            case X86_64_SSEUP_CLASS:
+                break;
+            case X86_64_X87_CLASS:
+            case X86_64_X87UP_CLASS:
+                if ( !bInReturn )
+                    return false;
+                break;
+            default:
+            SAL_WARN("bridges", "Unhandled case: classes[n] == " << classes[n]);
+            assert(false);
+        }
+    return true;
+}
+
+bool x86_64::return_in_hidden_param( typelib_TypeDescriptionReference *pTypeRef ) throw ()
+{
+    int g, s;
+
+    return !examine_argument( pTypeRef, true, g, s );
+}
+
+void x86_64::fill_struct( typelib_TypeDescriptionReference *pTypeRef, const sal_uInt64 *pGPR, const double *pSSE, void *pStruct ) throw ()
+{
+    enum x86_64_reg_class classes[MAX_CLASSES];
+    int n;
+
+    n = classify_argument( pTypeRef, classes, 0 );
+
+    sal_uInt64 *pStructAlign = static_cast<sal_uInt64 *>( pStruct );
+    for ( n--; n >= 0; n-- )
+        switch ( classes[n] )
+        {
+            case X86_64_INTEGER_CLASS:
+            case X86_64_INTEGERSI_CLASS:
+                *pStructAlign++ = *pGPR++;
+                break;
+            case X86_64_SSE_CLASS:
+            case X86_64_SSESF_CLASS:
+            case X86_64_SSEDF_CLASS:
+                *pStructAlign++ = *reinterpret_cast<const sal_uInt64 *>( pSSE++ );
+                break;
+            default:
+                break;
+        }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */