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editors/openoffice-devel: make robust against __cxa_exception ABI changes
Patch openoffice to replace __cxa_get_globals()->caughtExceptions, which is a pointer to the start of a struct __cxa_exception, with __cxa_current_primary_exception(), which is a pointer to the end. This allows struct __cxa_exception to be extended at the start as was recently done in FreeBSD main and stable/13 on 64-bit architectures. Recently on FreeBSD main and stable/13 __attribute__((__aligned__)) was added to struct _Unwind_Exception which changes its size on 32-bit architectures, and that of __cxa_exception as well. Patch openoffice to detect this so packages built on 13.0 still work on 13.1. Add a build dependency on a recent version of devel/libunwind so we always build with an unwind.h that has the right definition of _Unwind_Exception. The dependency was already pulled in via gstreamer (with default options).
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@ -2,7 +2,7 @@
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PORTNAME= apache-openoffice
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PORTVERSION= ${AOOVERSION1}.${AOOVERSION2}.${TIMESTAMP}
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PORTREVISION= 0
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PORTREVISION= 1
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PORTEPOCH= 4
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CATEGORIES= editors java
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MASTER_SITES= https://dist.apache.org/repos/dist/dev/openoffice/${AOOVERSION}-${AOORC}-${TIMESTAMP}/source/ \
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@ -61,6 +61,7 @@ BUILD_DEPENDS= \
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epm:devel/epm \
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${LOCALBASE}/bin/gperf:devel/gperf \
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imake:devel/imake \
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libunwind>=20211201_1:devel/libunwind \
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gpatch:devel/patch \
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${LOCALBASE}/include/sane/sane.h:graphics/sane-backends \
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${JAVALIBDIR}/commons-lang3.jar:java/apache-commons-lang3 \
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@ -230,6 +231,13 @@ WITH= SDK
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.include <bsd.port.pre.mk>
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.if ${OPSYS} == FreeBSD && ( \
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(${OSVERSION} >= 1300525 && ${OSVERSION} < 1301000) || \
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(${OSVERSION} >= 1301500 && ${OSVERSION} < 1301502) || \
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(${OSVERSION} >= 1400051 && ${OSVERSION} < 1400057))
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BROKEN= please update FreeBSD base system first to fix an ABI incompatibility
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.endif
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.if defined(WITH_DEBUG)
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CONFIGURE_ARGS+= --enable-symbols
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.endif
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@ -0,0 +1,15 @@
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--- bridges/source/cpp_uno/gcc3_freebsd_intel/except.cxx.orig 2019-09-17 22:55:10 UTC
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+++ bridges/source/cpp_uno/gcc3_freebsd_intel/except.cxx
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@@ -220,6 +220,12 @@ static void deleteException( void * pExc )
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static void deleteException( void * pExc )
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{
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__cxa_exception const * header = ((__cxa_exception const *)pExc - 1);
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+ if (header->exceptionDestructor != &deleteException) {
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+ // _Unwind_Exception was made __aligned__ which
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+ // increased its size by 12 bytes
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+ header = reinterpret_cast<__cxa_exception const *>(
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+ reinterpret_cast<char const *>( header ) - 12 );
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+ }
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typelib_TypeDescription * pTD = 0;
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OUString unoName( toUNOname( header->exceptionType->name() ) );
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::typelib_typedescription_getByName( &pTD, unoName.pData );
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@ -0,0 +1,49 @@
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--- bridges/source/cpp_uno/gcc3_freebsd_intel/uno2cpp.cxx.orig 2019-09-17 22:55:10 UTC
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+++ bridges/source/cpp_uno/gcc3_freebsd_intel/uno2cpp.cxx
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@@ -44,9 +44,12 @@ using namespace ::com::sun::star::uno;
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using namespace ::rtl;
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using namespace ::com::sun::star::uno;
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#ifdef __GLIBCXX__
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+using CPPU_CURRENT_NAMESPACE::__cxa_exception;
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using CPPU_CURRENT_NAMESPACE::__cxa_get_globals;
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#else
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-using __cxxabiv1::__cxa_get_globals;
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+using __cxxabiv1::__cxa_exception;
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+using __cxxabiv1::__cxa_current_primary_exception;
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+using __cxxabiv1::__cxa_decrement_exception_refcount;
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#endif
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namespace
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@@ -313,8 +316,31 @@ static void cpp_call(
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}
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catch (...)
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{
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+ __cxa_exception *header;
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+#ifdef __GLIBCXX__
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+ header = __cxa_get_globals()->caughtExceptions;
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+#else
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+ header = reinterpret_cast<__cxa_exception *>( __cxa_current_primary_exception() );
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+ if (header) {
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+ __cxa_decrement_exception_refcount( header );
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+ header--;
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+ uint64_t exc_class = header->unwindHeader.exception_class
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+ & 0xffffffffffffff00;
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+ if (exc_class != /* "GNUCC++" */ 0x474e5543432b2b00) {
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+ // _Unwind_Exception was made __aligned__ which
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+ // increased its size by 12 bytes.
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+ header = reinterpret_cast<__cxa_exception *>(
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+ reinterpret_cast<char *>( header ) - 12 );
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+ exc_class = header->unwindHeader.exception_class
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+ & 0xffffffffffffff00;
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+ if (exc_class != /* "GNUCC++" */ 0x474e5543432b2b00) {
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+ header = nullptr;
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+ }
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+ }
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+ }
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+#endif
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// fill uno exception
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- CPPU_CURRENT_NAMESPACE::fillUnoException( __cxa_get_globals()->caughtExceptions, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
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+ CPPU_CURRENT_NAMESPACE::fillUnoException( header, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
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// temporary params
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for ( ; nTempIndizes--; )
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@ -0,0 +1,43 @@
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--- bridges/source/cpp_uno/gcc3_freebsd_powerpc64/share.hxx.orig 2019-09-17 22:55:10 UTC
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+++ bridges/source/cpp_uno/gcc3_freebsd_powerpc64/share.hxx
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@@ -35,6 +35,7 @@ namespace CPPU_CURRENT_NAMESPACE
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// ----- following decl from libstdc++-v3/libsupc++/unwind-cxx.h and unwind.h
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+#ifdef __GLIBCXX__
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struct _Unwind_Exception
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{
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unsigned exception_class __attribute__((__mode__(__DI__)));
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@@ -63,18 +64,21 @@ struct __cxa_exception
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_Unwind_Exception unwindHeader;
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};
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+#endif /* __GLIBCXX__ */
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extern "C" void *__cxa_allocate_exception(
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std::size_t thrown_size ) throw();
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extern "C" void __cxa_throw (
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void *thrown_exception, std::type_info *tinfo, void (*dest) (void *) ) __attribute__((noreturn));
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+#ifdef __GLIBCXX__
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struct __cxa_eh_globals
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{
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__cxa_exception *caughtExceptions;
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unsigned int uncaughtExceptions;
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};
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extern "C" __cxa_eh_globals *__cxa_get_globals () throw();
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+#endif /* __GLIBCXX__ */
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// -----
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@@ -82,6 +86,10 @@ void raiseException(
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void raiseException(
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uno_Any * pUnoExc, uno_Mapping * pUno2Cpp );
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//==================================================================================================
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+#ifndef __GLIBCXX__
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+using __cxxabiv1:: __cxa_exception;
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+#endif /* __GLIBCXX__ */
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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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@ -0,0 +1,38 @@
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--- bridges/source/cpp_uno/gcc3_freebsd_powerpc64/uno2cpp.cxx.orig 2019-09-17 22:55:10 UTC
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+++ bridges/source/cpp_uno/gcc3_freebsd_powerpc64/uno2cpp.cxx
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@@ -42,6 +42,14 @@ using namespace ::com::sun::star::uno;
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using namespace ::rtl;
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using namespace ::com::sun::star::uno;
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+#ifdef __GLIBCXX__
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+using CPPU_CURRENT_NAMESPACE::__cxa_exception;
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+using CPPU_CURRENT_NAMESPACE::__cxa_get_globals;
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+#else
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+using __cxxabiv1::__cxa_exception;
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+using __cxxabiv1::__cxa_current_primary_exception;
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+using __cxxabiv1::__cxa_decrement_exception_refcount;
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+#endif
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void MapReturn(long r3, double dret, typelib_TypeClass eTypeClass, void *pRegisterReturn)
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{
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@@ -448,9 +456,18 @@ static void cpp_call(
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}
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catch (...)
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{
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+ __cxa_exception *header;
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+#ifdef __GLIBCXX__
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+ header = __cxa_get_globals()->caughtExceptions;
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+#else
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+ header = reinterpret_cast<__cxa_exception *>( __cxa_current_primary_exception() );
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+ if (header) {
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+ __cxa_decrement_exception_refcount( header );
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+ header--;
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+ }
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+#endif
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// fill uno exception
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- fillUnoException( CPPU_CURRENT_NAMESPACE::__cxa_get_globals()->caughtExceptions,
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- *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
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+ CPPU_CURRENT_NAMESPACE::fillUnoException( header, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
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// temporary params
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for ( ; nTempIndizes--; )
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@ -0,0 +1,36 @@
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--- bridges/source/cpp_uno/gcc3_freebsd_x86-64/uno2cpp.cxx.orig 2019-09-17 22:55:10 UTC
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+++ bridges/source/cpp_uno/gcc3_freebsd_x86-64/uno2cpp.cxx
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@@ -50,9 +50,12 @@ using namespace ::com::sun::star::uno;
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using namespace ::rtl;
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using namespace ::com::sun::star::uno;
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#ifdef __GLIBCXX__
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+using CPPU_CURRENT_NAMESPACE::__cxa_exception;
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using CPPU_CURRENT_NAMESPACE::__cxa_get_globals;
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#else
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-using __cxxabiv1::__cxa_get_globals;
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+using __cxxabiv1::__cxa_exception;
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+using __cxxabiv1::__cxa_current_primary_exception;
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+using __cxxabiv1::__cxa_decrement_exception_refcount;
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#endif
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//==================================================================================================
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@@ -452,8 +455,18 @@ static void cpp_call(
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}
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catch (...)
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{
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+ __cxa_exception *header;
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+#ifdef __GLIBCXX__
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+ header = __cxa_get_globals()->caughtExceptions;
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+#else
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+ header = reinterpret_cast<__cxa_exception *>( __cxa_current_primary_exception() );
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+ if (header) {
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+ __cxa_decrement_exception_refcount( header );
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+ header--;
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+ }
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+#endif
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// fill uno exception
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- CPPU_CURRENT_NAMESPACE::fillUnoException( __cxa_get_globals()->caughtExceptions, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
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+ CPPU_CURRENT_NAMESPACE::fillUnoException( header, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
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// temporary params
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for ( ; nTempIndizes--; )
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