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Re: [Patch] [libstdc++] [C++0x] Export std::string base object move constructor.

From: Jakub Jelinek <jakub at redhat dot com>
To: Adam Butcher <dev dot lists at jessamine dot co dot uk>, Benjamin Kosnik <bkoz at redhat dot com>
Cc: gcc-patches at gcc dot gnu dot org, libstdc++ at gcc dot gnu dot org
Date: Tue, 22 Mar 2011 14:39:51 +0100
Subject: Re: [Patch] [libstdc++] [C++0x] Export std::string base object move constructor.
References: <7db3e0ce41aacbeabd8c003deadabb98.squirrel@webmail.plus.net>
Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Tue, Mar 22, 2011 at 01:10:14PM -0000, Adam Butcher wrote:
> After a bit of poking around with nm in various objects I determined
> that the baseline_symbols files define what should be exported.  The
> following grep+sed combo adds the necessary export for any architecture
> that exports the C1 constructor symbol.
> 
>   grep _ZNSsC1EOSs libstdc++-v3/config/abi/post -R -l | xargs sed -i.bak
> '/_ZNSsC2EPKcRKSaIcE/ iFUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.14'
> 
> The result is attached as a patch against 4.6.0 20110321 (prerelease).

That's not the patch to export it, baseline_symbols.txt is just
for testing the ABI.
Furthermore, you can't add new symbols to GLIBCXX_3.4.14, which has
been already in gcc 4.5 and released almost a year ago, and lastly,
std::wstring has the same problem.

So, if Benjamin or other libstdc++ maintainers want it fixed for
4.6, you want a patch like attached, plus some testcases for both
std::string and std::wstring.

2011-03-22  Jakub Jelinek  <jakub@redhat.com>

	* config/abi/pre/gnu.ver (GLIBCXX_3.4.15): Export _ZNSsC2EOSs
	and _ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_.
	* config/abi/post/solaris2.8/baseline_symbols.txt: Regenerated.
	* config/abi/post/solaris2.8/sparcv9/baseline_symbols.txt: Likewise.
	* config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Likewise.
	* config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt:
	Likewise.
	* config/abi/post/solaris2.10/baseline_symbols.txt: Likewise.
	* config/abi/post/solaris2.10/amd64/baseline_symbols.txt: Likewise.
	* config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt: Likewise.
	* config/abi/post/i486-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/i386-linux-gnu/baseline_symbols.txt: Likewise.
	* config/abi/post/s390-linux-gnu/baseline_symbols.txt: Likewise.

--- libstdc++-v3/config/abi/pre/gnu.ver	2011-03-21 19:59:31.184763637 +0100
+++ libstdc++-v3/config/abi/pre/gnu.ver	2011-03-22 14:20:04.974402217 +0100
@@ -1202,6 +1202,10 @@ GLIBCXX_3.4.15 {
     _ZNSbIwSt11char_traitsIwESaIwEE4backEv;
     _ZNKSbIwSt11char_traitsIwESaIwEE4backEv;
 
+    # string|wstring move contructor.
+    _ZNSsC2EOSs;
+    _ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_;
+
     # basic_filebuf::_M_get_ext_pos
     _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE14_M_get_ext_pos*;
 
--- libstdc++-v3/config/abi/pre/gnu.ver.jj	2011-03-21 19:59:31.184763637 +0100
+++ libstdc++-v3/config/abi/pre/gnu.ver	2011-03-22 14:26:41.769399466 +0100
@@ -1202,6 +1202,10 @@ GLIBCXX_3.4.15 {
     _ZNSbIwSt11char_traitsIwESaIwEE4backEv;
     _ZNKSbIwSt11char_traitsIwESaIwEE4backEv;
 
+    # string|wstring move contructor.
+    _ZNSsC2EOSs;
+    _ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_;
+
     # basic_filebuf::_M_get_ext_pos
     _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE14_M_get_ext_pos*;
 
--- libstdc++-v3/config/abi/post/solaris2.8/baseline_symbols.txt.jj	2010-12-13 15:56:01.001251812 +0100
+++ libstdc++-v3/config/abi/post/solaris2.8/baseline_symbols.txt	2011-03-22 14:32:12.433546348 +0100
@@ -815,6 +815,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwjRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1043,6 +1044,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcjRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/solaris2.8/sparcv9/baseline_symbols.txt.jj	2011-03-21 20:01:16.355388654 +0100
+++ libstdc++-v3/config/abi/post/solaris2.8/sparcv9/baseline_symbols.txt	2011-03-22 14:32:26.587402287 +0100
@@ -815,6 +815,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwmRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1043,6 +1044,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcmRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/s390x-linux-gnu/baseline_symbols.txt.jj	2011-03-21 20:01:16.359546090 +0100
+++ libstdc++-v3/config/abi/post/s390x-linux-gnu/baseline_symbols.txt	2011-03-22 14:32:37.942546488 +0100
@@ -978,6 +978,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwmRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1216,6 +1217,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcmRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/x86_64-linux-gnu/baseline_symbols.txt.jj	2011-03-21 20:01:16.369545261 +0100
+++ libstdc++-v3/config/abi/post/x86_64-linux-gnu/baseline_symbols.txt	2011-03-22 14:32:54.974546326 +0100
@@ -836,6 +836,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwmRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1070,6 +1071,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcmRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt.jj	2011-03-21 20:01:16.364545549 +0100
+++ libstdc++-v3/config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt	2011-03-22 14:33:04.707796477 +0100
@@ -836,6 +836,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwjRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1070,6 +1071,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcjRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/powerpc-linux-gnu/baseline_symbols.txt.jj	2011-03-21 20:01:16.375430896 +0100
+++ libstdc++-v3/config/abi/post/powerpc-linux-gnu/baseline_symbols.txt	2011-03-22 14:33:13.586546183 +0100
@@ -978,6 +978,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwjRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1216,6 +1217,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcjRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt.jj	2011-03-21 20:01:16.386428160 +0100
+++ libstdc++-v3/config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt	2011-03-22 14:33:21.905546032 +0100
@@ -978,6 +978,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwmRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1216,6 +1217,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcmRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt.jj	2011-03-21 20:01:16.380546242 +0100
+++ libstdc++-v3/config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt	2011-03-22 14:33:31.082796227 +0100
@@ -978,6 +978,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwjRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1216,6 +1217,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcjRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/solaris2.10/baseline_symbols.txt.jj	2010-12-13 15:56:01.123248763 +0100
+++ libstdc++-v3/config/abi/post/solaris2.10/baseline_symbols.txt	2011-03-22 14:33:38.879796360 +0100
@@ -816,6 +816,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwjRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1044,6 +1045,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcjRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/solaris2.10/amd64/baseline_symbols.txt.jj	2011-03-21 20:01:16.390546286 +0100
+++ libstdc++-v3/config/abi/post/solaris2.10/amd64/baseline_symbols.txt	2011-03-22 14:33:47.659545927 +0100
@@ -816,6 +816,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwmRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1044,6 +1045,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcmRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt.jj	2011-03-21 20:01:16.394546032 +0100
+++ libstdc++-v3/config/abi/post/solaris2.10/sparcv9/baseline_symbols.txt	2011-03-22 14:33:57.393796468 +0100
@@ -816,6 +816,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwmRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1044,6 +1045,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcmRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/i486-linux-gnu/baseline_symbols.txt.jj	2011-03-21 20:01:16.399547139 +0100
+++ libstdc++-v3/config/abi/post/i486-linux-gnu/baseline_symbols.txt	2011-03-22 14:34:07.314546078 +0100
@@ -836,6 +836,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwjRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1070,6 +1071,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcjRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/i386-linux-gnu/baseline_symbols.txt.jj	2011-03-21 20:01:16.404545759 +0100
+++ libstdc++-v3/config/abi/post/i386-linux-gnu/baseline_symbols.txt	2011-03-22 14:34:20.787547857 +0100
@@ -836,6 +836,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwjRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1070,6 +1071,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcjRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4
--- libstdc++-v3/config/abi/post/s390-linux-gnu/baseline_symbols.txt.jj	2011-03-21 20:01:16.409545303 +0100
+++ libstdc++-v3/config/abi/post/s390-linux-gnu/baseline_symbols.txt	2011-03-22 14:34:29.850796323 +0100
@@ -978,6 +978,7 @@ FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1Ev
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IN9__gnu_cxx17__normal_iteratorIPwS2_EEEET_S8_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPKwEET_S6_RKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC1IPwEET_S5_RKS1_@@GLIBCXX_3.4
+FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_@@GLIBCXX_3.4.15
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2EPKwmRKS1_@@GLIBCXX_3.4
 FUNC:_ZNSbIwSt11char_traitsIwESaIwEEC2ERKS1_@@GLIBCXX_3.4
@@ -1216,6 +1217,7 @@ FUNC:_ZNSsC1Ev@@GLIBCXX_3.4
 FUNC:_ZNSsC1IN9__gnu_cxx17__normal_iteratorIPcSsEEEET_S4_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPKcEET_S2_RKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC1IPcEET_S1_RKSaIcE@@GLIBCXX_3.4
+FUNC:_ZNSsC2EOSs@@GLIBCXX_3.4.15
 FUNC:_ZNSsC2EPKcRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2EPKcmRKSaIcE@@GLIBCXX_3.4
 FUNC:_ZNSsC2ERKSaIcE@@GLIBCXX_3.4

	Jakub
Follow-Ups:
- Re: [Patch] [libstdc++] [C++0x] Export std::string base object move constructor.
  - From: Paolo Carlini
- Re: [Patch] [libstdc++] [C++0x] Export std::string base object move constructor.
  - From: Adam Butcher
- Re: [Patch] [libstdc++] [C++0x] Export std::string base object move constructor.
  - From: Benjamin Kosnik
References:
- [Patch] [libstdc++] [C++0x] Export std::string base object move constructor.
  - From: Adam Butcher
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