| Summary: | hidden symbol warnings may fire even if a visible symbol is available | ||
|---|---|---|---|
| Product: | binutils | Reporter: | Dan Albert <danalbert> |
| Component: | gold | Assignee: | Cary Coutant <ccoutant> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | normal | CC: | dimitry, ian, jsweval |
| Priority: | P2 | ||
| Version: | 2.24 | ||
| Target Milestone: | --- | ||
| Host: | Target: | ||
| Build: | Last reconfirmed: | ||
| Attachments: | minimized test case | ||
Created attachment 8391 [details] minimized test case Test case attached. Essentially the problem occurs when there is a symbol `foo` that is hidden in the main executable, used in liba, and public in libb when liba is linked before libb. Note that this does actually only occur for the main executable; it won't happen when linking a library. $ make clang++ -fuse-ld=gold -fPIC -shared -o libbar.so bar.cpp clang++ -fuse-ld=gold -fPIC -shared -o libfoo.so foo.cpp -L. -lbar clang++ -fuse-ld=gold -Wl,--fatal-warnings -shared -o baz baz.cpp -L. -lfoo -lbar /usr/bin/ld.gold: warning: hidden symbol 'foo()' in /tmp/baz-6c2f17.o is referenced by DSO ./libfoo.so /usr/bin/ld.gold: error: treating warnings as errors clang-3.6: error: linker command failed with exit code 1 (use -v to see invocation) make: *** [baz] Error 1 `foo` is hidden in the main executable, but is public in libbar.so.