https://sourceware.org/bugzilla/show_bug.cgi?id=18596
Bug ID: 18596
Summary: hidden symbol warnings may fire even if a visible
symbol is available
Product: binutils
Version: 2.24
Status: NEW
Severity: normal
Priority: P2
Component: gold
Assignee: ccoutant at gmail dot com
Reporter: danalbert at google dot com
CC: ian at airs dot com
Target Milestone: ---
Created attachment 8391
--> https://sourceware.org/bugzilla/attachment.cgi?id=8391&action=edit
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.
--
You are receiving this mail because:
You are on the CC list for the bug.
_______________________________________________
bug-binutils mailing list
bug-binutils@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-binutils
