fix bsd bridges
(cherry picked from commit a5ac1c19ca78b6549d2dc7381ddd31ae839288ec)
This commit is contained in:
Caolán McNamara
parent
96411be554
commit
992d8305dd
3 changed files with 105 additions and 15 deletions
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@ -68,7 +68,7 @@ void cpp2uno_call(
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if (pReturnTypeDescr)
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{
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if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
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if (x86::isSimpleReturnType( pReturnTypeDescr ))
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{
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pUnoReturn = pReturnValue; // direct way for simple types
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}
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@ -359,15 +359,39 @@ extern "C" typedef void (*PrivateSnippetExecutor)();
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int const codeSnippetSize = 16;
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#if defined (FREEBSD) || defined(NETBSD) || defined(OPENBSD) || defined(MACOSX)
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namespace
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{
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PrivateSnippetExecutor returnsInRegister(typelib_TypeDescriptionReference * pReturnTypeRef)
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{
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//These archs apparently are returning small structs in registers, while Linux
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//doesn't
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PrivateSnippetExecutor exec=NULL;
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typelib_TypeDescription * pReturnTypeDescr = 0;
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TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
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const bool bSimpleReturnStruct = x86::isSimpleReturnType(pReturnTypeDescr);
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const sal_Int32 nRetSize = pReturnTypeDescr->nSize;
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TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
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if (bSimpleReturnStruct)
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{
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exec = privateSnippetExecutorGeneral; // fills eax
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if (nRetSize > 4)
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exec = privateSnippetExecutorHyper; // fills eax/edx
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}
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return exec;
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}
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}
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#endif
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unsigned char * codeSnippet(
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unsigned char * code, sal_PtrDiff writetoexecdiff, sal_Int32 functionIndex, sal_Int32 vtableOffset,
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typelib_TypeClass returnTypeClass)
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typelib_TypeDescriptionReference * pReturnTypeRef)
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{
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if (!bridges::cpp_uno::shared::isSimpleType(returnTypeClass)) {
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functionIndex |= 0x80000000;
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}
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PrivateSnippetExecutor exec;
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switch (returnTypeClass) {
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typelib_TypeClass eReturnClass = pReturnTypeRef ? pReturnTypeRef->eTypeClass : typelib_TypeClass_VOID;
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switch (eReturnClass)
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{
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case typelib_TypeClass_VOID:
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exec = privateSnippetExecutorVoid;
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break;
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@ -381,13 +405,24 @@ unsigned char * codeSnippet(
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case typelib_TypeClass_DOUBLE:
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exec = privateSnippetExecutorDouble;
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break;
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case typelib_TypeClass_STRUCT:
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case typelib_TypeClass_EXCEPTION:
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#if defined (FREEBSD) || defined(NETBSD) || defined(OPENBSD) || defined(MACOSX)
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exec = returnsInRegister(pReturnTypeRef);
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if (!exec)
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{
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exec = privateSnippetExecutorClass;
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functionIndex |= 0x80000000;
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}
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break;
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#endif
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case typelib_TypeClass_STRING:
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case typelib_TypeClass_TYPE:
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case typelib_TypeClass_ANY:
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case typelib_TypeClass_SEQUENCE:
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case typelib_TypeClass_STRUCT:
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case typelib_TypeClass_INTERFACE:
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exec = privateSnippetExecutorClass;
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functionIndex |= 0x80000000;
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break;
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default:
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exec = privateSnippetExecutorGeneral;
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@ -455,7 +490,7 @@ unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
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code = codeSnippet(
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code, writetoexecdiff, functionOffset++, vtableOffset,
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reinterpret_cast< typelib_InterfaceAttributeTypeDescription * >(
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member)->pAttributeTypeRef->eTypeClass);
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member)->pAttributeTypeRef);
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// Setter:
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if (!reinterpret_cast<
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typelib_InterfaceAttributeTypeDescription * >(
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@ -464,7 +499,7 @@ unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
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(s++)->fn = code + writetoexecdiff;
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code = codeSnippet(
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code, writetoexecdiff, functionOffset++, vtableOffset,
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typelib_TypeClass_VOID);
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NULL);
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}
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break;
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@ -473,7 +508,7 @@ unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
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code = codeSnippet(
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code, writetoexecdiff, functionOffset++, vtableOffset,
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reinterpret_cast< typelib_InterfaceMethodTypeDescription * >(
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member)->pReturnTypeRef->eTypeClass);
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member)->pReturnTypeRef);
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break;
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default:
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@ -88,6 +88,12 @@ void raiseException(
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//==================================================================================================
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void fillUnoException(
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__cxa_exception * header, uno_Any *, uno_Mapping * pCpp2Uno );
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}
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namespace x86
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{
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bool isSimpleReturnType(typelib_TypeDescription * pTD, bool recursive = false);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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@ -59,7 +59,7 @@ void callVirtualMethod(
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void * pAdjustedThisPtr,
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sal_Int32 nVtableIndex,
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void * pRegisterReturn,
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typelib_TypeClass eReturnType,
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typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn,
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sal_Int32 * pStackLongs,
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sal_Int32 nStackLongs ) __attribute__((noinline));
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@ -67,7 +67,7 @@ void callVirtualMethod(
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void * pAdjustedThisPtr,
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sal_Int32 nVtableIndex,
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void * pRegisterReturn,
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typelib_TypeClass eReturnType,
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typelib_TypeDescription * pReturnTypeDescr, bool bSimpleReturn,
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sal_Int32 * pStackLongs,
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sal_Int32 nStackLongs )
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{
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@ -120,8 +120,10 @@ void callVirtualMethod(
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: "m"(nStackLongs), "m"(pStackLongs), "m"(pAdjustedThisPtr),
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"m"(nVtableIndex), "m"(eax), "m"(edx), "m"(stackptr)
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: "eax", "edx" );
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switch( eReturnType )
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switch( pReturnTypeDescr->eTypeClass )
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{
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case typelib_TypeClass_VOID:
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break;
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case typelib_TypeClass_HYPER:
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case typelib_TypeClass_UNSIGNED_HYPER:
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((long*)pRegisterReturn)[1] = edx;
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@ -146,9 +148,22 @@ void callVirtualMethod(
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asm ( "fstpl %0\n\t" : : "m"(*(char *)pRegisterReturn) );
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break;
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default:
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{
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#if defined (FREEBSD) || defined(NETBSD) || defined(OPENBSD) || defined(MACOSX)
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sal_Int32 const nRetSize = pReturnTypeDescr->nSize;
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if (bSimpleReturn && nRetSize <= 8 && nRetSize > 0)
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{
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if (nRetSize > 4)
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static_cast<long *>(pRegisterReturn)[1] = edx;
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static_cast<long *>(pRegisterReturn)[0] = eax;
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}
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#else
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(void)bSimpleReturn;
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#endif
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break;
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}
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}
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}
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//==================================================================================================
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static void cpp_call(
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@ -169,10 +184,12 @@ static void cpp_call(
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OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" );
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void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
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bool bSimpleReturn = true;
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if (pReturnTypeDescr)
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{
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if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
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bSimpleReturn = x86::isSimpleReturnType(pReturnTypeDescr);
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if (bSimpleReturn)
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{
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pCppReturn = pUnoReturn; // direct way for simple types
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}
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@ -269,7 +286,7 @@ static void cpp_call(
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OSL_ENSURE( !( (pCppStack - pCppStackStart ) & 3), "UNALIGNED STACK !!! (Please DO panic)" );
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callVirtualMethod(
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pAdjustedThisPtr, aVtableSlot.index,
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pCppReturn, pReturnTypeDescr->eTypeClass,
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pCppReturn, pReturnTypeDescr, bSimpleReturn,
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(sal_Int32 *)pCppStackStart, (pCppStack - pCppStackStart) / sizeof(sal_Int32) );
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// NO exception occured...
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*ppUnoExc = 0;
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@ -328,6 +345,38 @@ static void cpp_call(
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}
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namespace x86
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{
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bool isSimpleReturnType(typelib_TypeDescription * pTD, bool recursive)
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{
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if (bridges::cpp_uno::shared::isSimpleType( pTD ))
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return true;
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#if defined (FREEBSD) || defined(NETBSD) || defined(OPENBSD) || defined(MACOSX)
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// Only structs of exactly 1, 2, 4, or 8 bytes are returned through
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// registers, see <http://developer.apple.com/documentation/DeveloperTools/
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// Conceptual/LowLevelABI/Articles/IA32.html>:
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if (pTD->eTypeClass == typelib_TypeClass_STRUCT &&
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(recursive || pTD->nSize <= 2 || pTD->nSize == 4 || pTD->nSize == 8))
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{
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typelib_CompoundTypeDescription *const pCompTD =
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(typelib_CompoundTypeDescription *) pTD;
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for ( sal_Int32 pos = pCompTD->nMembers; pos--; ) {
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typelib_TypeDescription * pMemberTD = 0;
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TYPELIB_DANGER_GET( &pMemberTD, pCompTD->ppTypeRefs[pos] );
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bool const b = isSimpleReturnType(pMemberTD, true);
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TYPELIB_DANGER_RELEASE( pMemberTD );
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if (! b)
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return false;
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}
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return true;
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}
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#else
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(void)recursive;
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#endif
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return false;
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}
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}
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namespace bridges { namespace cpp_uno { namespace shared {
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void unoInterfaceProxyDispatch(
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