[Bug gold/9836] New: wrong visibility in shared objects

[baldrick at free dot fr]

The file null.cpp is empty.  Using GNU ld (GNU Binutils for Ubuntu) 2.19.1:

$ g++ -shared null.cpp -o null.so && nm null.so | grep __dso_handle
0000000000201008 d __dso_handle

Note that __dso_handle is an internal symbol.

Using GNU gold (GNU Binutils 2.19.51.20090211) 1.9:

$ g++ -shared null.cpp -o null.so && nm null.so | grep __dso_handle
0000000000002000 D __dso_handle

Note that __dso_handle is an external symbol.

This testcase is reduced from the LLVM compiler which fails to
build when linked with gold and configured with --enable-pic,
because it thinks there are circular library dependencies.  The
reason for that is that in the shared libraries a bunch of symbols
are external when linked with gold but internal with the usual ld.
These symbols confuse the script that checks for circular dependencies.

-- 
           Summary: wrong visibility in shared objects
           Product: binutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gold
        AssignedTo: ian at airs dot com
        ReportedBy: baldrick at free dot fr
                CC: bug-binutils at gnu dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=9836

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