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-rw-r--r--gcc-4.6/libstdc++-v3/libsupc++/eh_arm.cc12
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc-4.6/libstdc++-v3/libsupc++/eh_arm.cc b/gcc-4.6/libstdc++-v3/libsupc++/eh_arm.cc
index f0acb70..0112d61 100644
--- a/gcc-4.6/libstdc++-v3/libsupc++/eh_arm.cc
+++ b/gcc-4.6/libstdc++-v3/libsupc++/eh_arm.cc
@@ -29,6 +29,16 @@
using namespace __cxxabiv1;
+// The GCC command-line option "-fvisibility=hidden" apparently fails to hide
+// the visibility of the inline assembly function "__cxa_end_cleanup".
+// We need to keep the visibility of the __cxa_* functions coherent otherwise
+// linking eh_arm.o to resolve __cxa_end_cleanup (eg needed by -frtti
+// -fexceptions) will disappoint the linker by exposing __cxa_type_match and
+// __cxa_begin_cleanup (eg needed by __aeabi_idiv from libgcc.a).
+// Therefore as a simple workaround we just force the visibility to default for
+// all these __cxa functions in this module.
+
+#pragma GCC visibility push(default)
// Given the thrown type THROW_TYPE, pointer to a variable containing a
// pointer to the exception object THROWN_PTR_P and a type CATCH_TYPE to
@@ -179,4 +189,6 @@ asm (" .pushsection .text.__cxa_end_cleanup\n"
" .popsection\n");
#endif
+#pragma GCC visibility pop
+
#endif