On Tue, Apr 30, 2019 at 12:02:18PM +0100, Jonathan Wakely wrote:
> > So, that indeed fails with -O0 -std=c++17 -Wl,--no-demangle
> > https://paste.fedoraproject.org/paste/wvIxqaH37DYNn4b4Cfua~w
> >
> > Unfortunately, at least judging from the libstdc++*debug symbols on riscv64
> > I've posted, it probably isn't just a matter of following, because while
> > some symbols like that are in, most of them are not.
I've populated a riscv64-linux-gnu fedora sysroot and built a
cross-compiler, on which I've managed to reproduce it too.
The issue with seemingly missing STB_LOCAL symbols from the list I was
expecting is most likely due to -ffunction-sections -Wl,--gc-sections
way of how is libstdc++.so linked.
With the following patch they are now all included and the patch also
adjusts the riscv64 baseline to match that.
Ok for trunk/9.1?
2019-04-30 Jakub Jelinek
* config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Change _Lock_policyE2 exports
to _Lock_policyE[012].
* config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
--- libstdc++-v3/config/abi/pre/gnu.ver.jj 2019-04-30 10:55:31.118223843
+0200
+++ libstdc++-v3/config/abi/pre/gnu.ver 2019-04-30 13:27:23.810663072 +0200
@@ -2234,17 +2234,17 @@ GLIBCXX_3.4.26 {
_ZNSt10filesystem7__cxx1128recursive_directory_iteratoraSEOS1_;
_ZNSt10filesystem7__cxx1128recursive_directory_iteratorppEv;
-
_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EEC1Ev;
-
_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EEC1EOS4_;
-
_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE2EEaSEOS4_;
-
_ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EEC1Ev;
-
_ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EEC1EOS5_;
+
_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
+
_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS4_;
+
_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEaSEOS4_;
+
_ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
+
_ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS5_;
-
_ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE2EEC1Ev;
-
_ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE2EEC1EOS5_;
-
_ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE2EEaSEOS5_;
-
_ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EEC1Ev;
-
_ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE2EEC1EOS6_;
+
_ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
+
_ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS5_;
+
_ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEaSEOS5_;
+
_ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
+
_ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS6_;
# basic_ostream::operator<<(nullptr_t)
_ZNSolsEDn;
--- libstdc++-v3/config/abi/post/riscv64-linux-gnu/baseline_symbols.txt.jj
2019-04-30 10:55:39.878083876 +0200
+++ libstdc++-v3/config/abi/post/riscv64-linux-gnu/baseline_symbols.txt
2019-04-30 13:27:50.897230866 +0200
@@ -2058,6 +2058,16 @@ FUNC:_ZNSt12__basic_fileIcEC1EP15pthread
FUNC:_ZNSt12__basic_fileIcEC2EP15pthread_mutex_t@@GLIBCXX_3.4
FUNC:_ZNSt12__basic_fileIcED1Ev@@GLIBCXX_3.4
FUNC:_ZNSt12__basic_fileIcED2Ev@@GLIBCXX_3.4
+FUNC:_ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE1EEC1EOS5_@@GLIBCXX_3.4.26
+FUNC:_ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE1EEC1Ev@@GLIBCXX_3.4.26
+FUNC:_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE1EEC1EOS4_@@GLIBCXX_3.4.26
+FUNC:_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE1EEC1Ev@@GLIBCXX_3.4.26
+FUNC:_ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE1EEaSEOS4_@@GLIBCXX_3.4.26
+FUNC:_ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE1EEC1EOS6_@@GLIBCXX_3.4.26
+FUNC:_ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE1EEC1Ev@@GLIBCXX_3.4.26
+FUNC:_ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE1EEC1EOS5_@@GLIBCXX_3.4.26
