[PATCH] libstdc++ ABI issues with __int128
Jakub Jelinek
jakub@redhat.com
Mon Mar 21 19:16:00 GMT 2011
On Mon, Mar 21, 2011 at 07:32:14PM +0100, Benjamin Kosnik wrote:
> > Well, such stricter checking wouldn't be completely painless, e.g. currently
> > both current baseline_symbols.txt and the ones I've posted don't include the
> > two TLS: lines, because of the fear that not everyone has TLS enabled.
> > If baseline_symbols.txt right now miss some symbols, it is not a big deal
> > if it is not in the base version (with my patch base versions), but with
> > stricter checking it would complain. Â Either we'd just say that TLS is
> > assumed on these targets and add the TLS: lines, or we'd need to invent
> > some symbol conditionalizing or something.
>
> We will keep on doing the present solution for libstdc++.so.6 and
> invent something clever later.
After offline discussion with Benjamin I've committed
http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01175.html
http://gcc.gnu.org/ml/gcc-patches/2011-03/msg01246.html
and the attached two patches to trunk and 4.6 after regtesting
on x86_64-linux.
Jakub
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2011-03-21 Benjamin Kosnik <bkoz@redhat.com>
* config/abi/pre/gnu.ver: Remove typeinfo name exports for C++0x types.
--- libstdc++-v3/config/abi/pre/gnu.ver
+++ libstdc++-v3/config/abi/pre/gnu.ver
@@ -1231,7 +1231,6 @@ GLIBCXX_3.4.15 {
_ZNSt11regex_errorD*;
_ZNKSt11regex_error4whatEv;
- _ZTSSt11regex_error;
_ZTVSt11regex_error;
_ZTISt11regex_error;
_ZSt19__throw_regex_errorNSt15regex_constants10error_typeE;
@@ -1239,14 +1238,12 @@ GLIBCXX_3.4.15 {
# std::bad_weak_ptr
_ZNSt12bad_weak_ptrD*;
_ZNKSt12bad_weak_ptr4whatEv;
- _ZTSSt12bad_weak_ptr;
_ZTVSt12bad_weak_ptr;
_ZTISt12bad_weak_ptr;
# std::bad_function_call
_ZNSt17bad_function_callD*;
_ZTISt17bad_function_call;
- _ZTSSt17bad_function_call;
_ZTVSt17bad_function_call;
_ZNSt14error_categoryC*;
@@ -1255,12 +1252,10 @@ GLIBCXX_3.4.15 {
_ZNSt13__future_base12_Result_baseC*;
_ZNSt13__future_base12_Result_baseD*;
_ZTINSt13__future_base12_Result_baseE;
- _ZTSNSt13__future_base12_Result_baseE;
_ZTVNSt13__future_base12_Result_baseE;
_ZNSt13__future_base11_State_baseD*;
_ZTINSt13__future_base11_State_baseE;
- _ZTSNSt13__future_base11_State_baseE;
_ZTVNSt13__future_base11_State_baseE;
} GLIBCXX_3.4.14;
@@ -1444,7 +1439,6 @@ CXXABI_1.3.5 {
# std::nested_exception
_ZNSt16nested_exceptionD*;
_ZTISt16nested_exception;
- _ZTSSt16nested_exception;
_ZTVSt16nested_exception;
} CXXABI_1.3.4;
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