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authorBen Cheng <bccheng@google.com>2013-03-05 16:34:56 -0800
committerBen Cheng <bccheng@google.com>2013-03-05 16:38:25 -0800
commit811925038a83c20dad6250957e3082e1039c0c77 (patch)
tree54f21cfc2f17ea0f1c7a2a68ea5bda2d6583d3d3 /gcc-4.7/libstdc++-v3
parent67a559de3736deb9b9912d89ca22149922a4894c (diff)
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Use default visibility for the __cxa functions in eh_arm.cc.
Change-Id: I45ecaa7c20aece451664c631c01a3fefe054293a
Diffstat (limited to 'gcc-4.7/libstdc++-v3')
-rw-r--r--gcc-4.7/libstdc++-v3/libsupc++/eh_arm.cc12
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc-4.7/libstdc++-v3/libsupc++/eh_arm.cc b/gcc-4.7/libstdc++-v3/libsupc++/eh_arm.cc
index 0f0b02671..a03dd13ea 100644
--- a/gcc-4.7/libstdc++-v3/libsupc++/eh_arm.cc
+++ b/gcc-4.7/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, exception object UE_HEADER and a
// type CATCH_TYPE to compare against, return whether or not there is
@@ -224,4 +234,6 @@ asm (" .pushsection .text.__cxa_end_cleanup\n"
#endif
#endif
+#pragma GCC visibility pop
+
#endif