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| author | Reid Kleckner <rnk@google.com> | 2015-10-21 22:01:02 +0000 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2015-10-21 22:01:02 +0000 |
| commit | 7737bd9f9fb5d9cfd5717f36791036fa08d57b95 (patch) | |
| tree | bcf0b1cb3ad2bcee7078c277a068d354cb93b2db /clang/lib/Serialization/ModuleManager.cpp | |
| parent | 9dfde98d272d1b178eb3c99f8fb758cc3e5a92b5 (diff) | |
| download | llvm-7737bd9f9fb5d9cfd5717f36791036fa08d57b95.zip llvm-7737bd9f9fb5d9cfd5717f36791036fa08d57b95.tar.gz llvm-7737bd9f9fb5d9cfd5717f36791036fa08d57b95.tar.bz2 | |
[Driver] Alias -fvisibility=internal to -fvisibility=hidden
The ELF symbol visibilities are:
- internal: Not visibile across DSOs, cannot pass address across DSOs
- hidden: Not visibile across DSOs, can be called indirectly
- default: Usually visible across DSOs, possibly interposable
- protected: Visible across DSOs, not interposable
LLVM only supports the latter 3 visibilities. Internal visibility is in
theory useful, as it allows you to assume that the caller is maintaining
a PIC register for you in %ebx, or in some other pre-arranged location.
As far as LLVM is concerned, this isn't worth the trouble. Using hidden
visibility is always correct, so we can just do that.
Resolves PR9183.
llvm-svn: 250954
Diffstat (limited to 'clang/lib/Serialization/ModuleManager.cpp')
0 files changed, 0 insertions, 0 deletions