[llvm-bugs] [Bug 46169] New: --wrap: don't leave __wrap_foo in .dynsym if it is unused

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=46169

            Bug ID: 46169
           Summary: --wrap: don't leave __wrap_foo in .dynsym if it is
                    unused
           Product: lld
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: ELF
          Assignee: unassignedbugs at nondot.org
          Reporter: i at maskray.me
                CC: llvm-bugs at lists.llvm.org, smithp352 at googlemail.com

I committed http://reviews.llvm.org/rGa6ae333a0c23fc9b0783ca45e2676abac00c6723
in a hurry to fix a regression after I landed https://reviews.llvm.org/D51283
to fix a Chrome problem
(https://bugs.chromium.org/p/chromium/issues/detail?id=1086636#c21 )

I noticed at least another incompatibility with GNU ld and gold

See lld/test/ELF/wrap-shlib-undefined.s

> ## FIXME GNU ld does not export __wrap_foo

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