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authorBen Cheng <bccheng@android.com>2013-04-02 19:52:55 +0800
committerAndrew Hsieh <andrewhsieh@google.com>2013-04-02 20:36:40 +0800
commit4e9989f243cd0a5d51f76e6ce98828c7cb6b9246 (patch)
treef344226fc3e55b384d5fa9a2808ae0bc1449bdb8 /gcc-4.8
parent9c289590d1f9e5c75fc4e7ba33ab4a86244972a9 (diff)
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[4.8] Use default visibility for the __cxa functions in eh_arm.cc.
Change-Id: I6f4b9adba43aa366c5107c8644a7a2afc840d193
Diffstat (limited to 'gcc-4.8')
-rw-r--r--gcc-4.8/libstdc++-v3/libsupc++/eh_arm.cc12
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc-4.8/libstdc++-v3/libsupc++/eh_arm.cc b/gcc-4.8/libstdc++-v3/libsupc++/eh_arm.cc
index a91405ef4..03c157b52 100644
--- a/gcc-4.8/libstdc++-v3/libsupc++/eh_arm.cc
+++ b/gcc-4.8/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