Get libc++ building for Android

This adds an Android makefile, aliases locale aware cctype and cwctype
functions, fixes broken configuration in libcxx, and stubs functions missing
from bionic.

Change-Id: I247372d87caabe0310bedc4540b68ab2ed1986c1

3 files changed, 105 insertions, 2 deletions

diff --git a/src/locale.cpp b/src/locale.cpp
index 4877f2b6a..afc96bd8f 100644
--- a/src/locale.cpp
+++ b/src/locale.cpp
@@ -30,6 +30,8 @@
 #include "__sso_allocator"
 #if defined(_LIBCPP_MSVCRT) || defined(__MINGW32__)
 #include <support/win32/locale_win32.h>
+#elif defined(__ANDROID__)
+#include <support/android/langinfo.h>
 #else // _LIBCPP_MSVCRT
 #include <langinfo.h>
 #endif // !_LIBCPP_MSVCRT
diff --git a/src/memory.cpp b/src/memory.cpp
index 666673fc6..02f6bf9dc 100644
--- a/src/memory.cpp
+++ b/src/memory.cpp
@@ -109,7 +109,7 @@ __shared_weak_count::lock() _NOEXCEPT
     return 0;
 }
 
-#ifndef _LIBCPP_NO_RTTI
+#if !defined(_LIBCPP_NO_RTTI) || !defined(_LIBCPP_BUILD_STATIC)
 
 const void*
 __shared_weak_count::__get_deleter(const type_info&) const _NOEXCEPT
@@ -117,7 +117,7 @@ __shared_weak_count::__get_deleter(const type_info&) const _NOEXCEPT
     return 0;
 }
 
-#endif  // _LIBCPP_NO_RTTI
+#endif  // !defined(_LIBCPP_NO_RTTI) || !defined(_LIBCPP_BUILD_STATIC)
 
 #if __has_feature(cxx_atomic)
 
diff --git a/src/stubs.cpp b/src/stubs.cpp
new file mode 100644
index 000000000..d8b1ecbcb
--- /dev/null
+++ b/src/stubs.cpp
@@ -0,0 +1,101 @@
+// -*- C++ -*-
+//===----------------------------- stubs.cpp ------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifdef __ANDROID__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <errno.h>
+#include <wchar.h>
+
+#include <support/android/nl_types.h>
+
+static void unimplemented_stub(const char* function) {
+    const char* fmt = "%s(3) is not implemented on Android\n";
+    fprintf(stderr, fmt, function);
+}
+
+#define UNIMPLEMENTED unimplemented_stub(__PRETTY_FUNCTION__)
+
+float wcstof(const wchar_t *, wchar_t **)
+{
+    UNIMPLEMENTED;
+    return 0;
+}
+
+double wcstod(const wchar_t *, wchar_t **)
+{
+    UNIMPLEMENTED;
+    return 0;
+}
+
+long double wcstold(const wchar_t *, wchar_t **)
+{
+    UNIMPLEMENTED;
+    return 0;
+}
+
+long long wcstoll(const wchar_t *, wchar_t **, int)
+{
+    UNIMPLEMENTED;
+    return 0;
+}
+
+unsigned long long wcstoull(const wchar_t *, wchar_t **, int)
+{
+    UNIMPLEMENTED;
+    return 0;
+}
+
+size_t wcsnrtombs(char *, const wchar_t **, size_t, size_t, mbstate_t *)
+{
+    UNIMPLEMENTED;
+    errno = EILSEQ;
+    return (size_t)-1;
+}
+
+size_t mbsnrtowcs(wchar_t *, const char **, size_t, size_t, mbstate_t *)
+{
+    UNIMPLEMENTED;
+    errno = EILSEQ;
+    return (size_t)-1;
+}
+
+int mbtowc(wchar_t *, const char *, size_t)
+{
+    UNIMPLEMENTED;
+    return -1;
+}
+
+nl_catd catopen(const char *, int)
+{
+    UNIMPLEMENTED;
+    return (nl_catd)-1;
+}
+
+int catclose(nl_catd)
+{
+    UNIMPLEMENTED;
+    return -1;
+}
+
+char *catgets(nl_catd, int, int, const char *message)
+{
+    UNIMPLEMENTED;
+    return (char *)message;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __ANDROID__