tree 8ffec83dcea5e401b3588268713070e8771ce53c
parent 580cde08e1f355bc310e07588a5209687ad1fc6f
author Louis Dionne <ldionne@apple.com> 1542817486 +0000
committer Louis Dionne <ldionne@apple.com> 1542817486 +0000

[libcxx] Make sure we can build with -fvisibility=hidden on Linux

Summary:
This commit marks a few functions as hidden and removes them from the ABI list
on Linux such that libc++ can be built with -fvisibility=hidden. The functions
marked as hidden by this patch were exported from the shared object only
because they were implicitly instantiated function templates. It is safe
to stop exporting those symbols from the shared object because nobody could
actually depend on them: implicit instantiations are not taken from shared
objects.

The symbols removed in this commit are basically the same that had been
removed in https://reviews.llvm.org/D53868, but that patch had to be reverted
because it broke the build (because the functions were not marked as hidden
like this patch does).

Reviewers: EricWF, mclow.lists

Subscribers: christof, jkorous, dexonsmith, libcxx-commits

Differential Revision: https://reviews.llvm.org/D54639

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@347395 91177308-0d34-0410-b5e6-96231b3b80d8