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| author | Hans Wennborg <hans@hanshq.net> | 2018-09-06 08:09:39 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2018-09-06 08:09:39 +0000 |
| commit | f3e3e0682c76f3e027ce0e21c05049ff48ccdd6f (patch) | |
| tree | 8ede0a3a1eb209654eed4a2774073d6e594e2c0f | |
| parent | 958eec8d4243933d2323eac954a7ca14bd64710a (diff) | |
ReleaseNotes: libc++ _LIBCPP_HIDE_FROM_ABI_PER_TU
git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_70@341521 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | docs/ReleaseNotes.rst | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/docs/ReleaseNotes.rst b/docs/ReleaseNotes.rst index c44acc734b..fc91228786 100644 --- a/docs/ReleaseNotes.rst +++ b/docs/ReleaseNotes.rst @@ -390,8 +390,15 @@ The following methods have been added: - ... -Significant Known Problems -========================== +libc++ Changes +============== +Users that wish to link together translation units built with different +versions of libc++'s headers into the same final linked image should define the +`_LIBCPP_HIDE_FROM_ABI_PER_TU` macro to `1` when building those translation +units. In a future release, not defining `_LIBCPP_HIDE_FROM_ABI_PER_TU` to `1` +and linking translation units built with different versions of libc++'s headers +together may lead to ODR violations and ABI issues. + Additional Information ====================== |