[llvm-bugs] [Bug 48361] foo at v1 and foo@@v1 aren't handled properly

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48361

Fangrui Song <i at maskray.me> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED
           Assignee|unassignedbugs at nondot.org   |i at maskray.me

--- Comment #1 from Fangrui Song <i at maskray.me> ---
Fixed by https://reviews.llvm.org/D92259 (the title is not generic: actually
foo@@v1 and defined foo at v1 are also merged)

cc -o x main.o libfoo.so -Wl,-R,. -fuse-ld=lld; ./x => works

The resolution in the thread
https://sourceware.org/pipermail/binutils/2020-December/114400.html is that
weak foo@@v1 and strong foo at v1 is treated as the same symbol. @@ is a separate
attribute which can decorate the symbol, while STB_GLOBAL prevails STB_WEAK as
usual.

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