Adapt to the new libc++/libc++abi update.

C++17 removed a handful of things that are used in the libclang
headers, which are used by the versioner. Enable the flag that
re-exposes these until we have a C++17 compatible libclang.

Add a stub posix_memalign to the linker. libc++abi uses posix_memalign
when allocating exceptions, which the linker does not use.

Test: make checkbuild
Bug: None
Change-Id: I32f9d0591ef99a610f27efed90a5c9fd150f0d3e

1 files changed, 4 insertions, 0 deletions

diff --git a/linker/linker_libcxx_support.cpp b/linker/linker_libcxx_support.cpp
index 41ed8bcd6..3d15b3398 100644
--- a/linker/linker_libcxx_support.cpp
+++ b/linker/linker_libcxx_support.cpp
@@ -35,3 +35,7 @@ void* __find_icu_symbol(const char* symbol_name __attribute__((__unused__))) {
 extern "C" int __cxa_type_match() {
   async_safe_fatal("__cxa_type_match is not implemented in the linker");
 }
+
+int posix_memalign(void**, size_t, size_t) {
+  async_safe_fatal("posix_memalign is not implemented in the linker");
+}