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[libc++] Fix _LIBCPP_EXPORTED_FROM_ABI when visibility annotations are disabled

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Fixes a bug where functions would get exported when building with
-fvisibility=hidden and defining _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS. No
visibility annotations should be added in this case.

The new logic for _LIBCPP_EXPORTED_FROM_ABI matches that of the other visibility
annotations around it.

Differential Revision: https://reviews.llvm.org/D55664



git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@349080 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Thomas Anderson
2018-12-13 20:06:14 +00:00
parent d3f2d5ec4e
commit e713cc0acf
1 changed files with 5 additions and 1 deletions
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6
include/__config
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@@ -715,7 +715,11 @@ typedef __char32_t char32_t;
#endif
#ifndef _LIBCPP_EXPORTED_FROM_ABI
# define _LIBCPP_EXPORTED_FROM_ABI __attribute__((__visibility__("default")))
# if !defined(_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS)
# define _LIBCPP_EXPORTED_FROM_ABI __attribute__((__visibility__("default")))
# else
# define _LIBCPP_EXPORTED_FROM_ABI
# endif
#endif
#ifndef _LIBCPP_OVERRIDABLE_FUNC_VIS