[Bug 228574] GNU ld doesn't emit _end when linking with lld-linked libc.so

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Thu May 31 20:16:52 UTC 2018


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=228574

--- Comment #4 from Mark Johnston <markj at FreeBSD.org> ---
The solution proposed by the binutils developers is to emit _end, etc., only in
executables. To integrate that change, we'd have to remove _end from libc.so's
version map. However, this change would require lld to adopt the same
behaviour, since otherwise libc.so will use the internal definition of _end
when linked with lld, which will always be wrong. lld also needs to be tweaked
to emit _end if libc.so contains an undefined _end symbol. Currently it will
not emit _end in an executable if libc.so has an undefined reference to _end.

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