Add markup for libc++ dylib availability

Libc++ is used as a system library on macOS and iOS (amongst others). In order
for users to be able to compile a binary that is intended to be deployed to an
older version of the platform, clang provides the
availability attribute <https://clang.llvm.org/docs/AttributeReference.html#availability>_
that can be placed on declarations to describe the lifecycle of a symbol in the
library.

See docs/DesignDocs/AvailabilityMarkup.rst for more information.

Differential Revision: https://reviews.llvm.org/D31739

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@302172 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Mehdi Amini
2017-05-04 17:08:54 +00:00
parent 3320e88ab4
commit 907c1196a7
174 changed files with 1060 additions and 126 deletions

View File

@@ -12,6 +12,9 @@
// MODULES_DEFINES: _LIBCPP_DEBUG=1
// MODULES_DEFINES: _LIBCPP_DEBUG_USE_EXCEPTIONS
// Can't test the system lib because this test enables debug mode
// UNSUPPORTED: with_system_cxx_lib
// test container debugging
#define _LIBCPP_DEBUG 1