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

12 files changed, 427 insertions, 4 deletions

diff --git a/Android.mk b/Android.mk
new file mode 100644
index 00000000..92ecddca
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,71 @@
+#
+# Copyright (C) 2014 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+LIBCXX_SRC_FILES := \
+	src/algorithm.cpp \
+	src/bind.cpp \
+	src/chrono.cpp \
+	src/condition_variable.cpp \
+	src/debug.cpp \
+	src/exception.cpp \
+	src/future.cpp \
+	src/hash.cpp \
+	src/ios.cpp \
+	src/iostream.cpp \
+	src/locale.cpp \
+	src/memory.cpp \
+	src/mutex.cpp \
+	src/new.cpp \
+	src/optional.cpp \
+	src/random.cpp \
+	src/regex.cpp \
+	src/shared_mutex.cpp \
+	src/stdexcept.cpp \
+	src/string.cpp \
+	src/strstream.cpp \
+	src/system_error.cpp \
+	src/thread.cpp \
+	src/typeinfo.cpp \
+	src/utility.cpp \
+	src/valarray.cpp \
+	src/stubs.cpp \
+
+LIBCXX_CPPFLAGS := \
+	-I$(LOCAL_PATH)/include/ \
+	-Iexternal/libcxxabi/include \
+	-std=c++11 \
+	-nostdlib \
+	-fexceptions \
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libc++
+LOCAL_CLANG := true
+LOCAL_SRC_FILES := $(LIBCXX_SRC_FILES)
+LOCAL_CPPFLAGS := $(LIBCXX_CPPFLAGS)
+LOCAL_SYSTEM_SHARED_LIBRARIES := libc
+LOCAL_SHARED_LIBRARIES := libcxxabi
+include $(BUILD_SHARED_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libc++
+LOCAL_CLANG := true
+LOCAL_SRC_FILES := $(LIBCXX_SRC_FILES)
+LOCAL_CPPFLAGS := $(LIBCXX_CPPFLAGS)
+LOCAL_LDFLAGS := -lrt -pthread
+LOCAL_SHARED_LIBRARIES := libcxxabi
+include $(BUILD_HOST_SHARED_LIBRARY)
diff --git a/include/__config b/include/__config
index 33254e98..b64e4b0b 100644
--- a/include/__config
+++ b/include/__config
@@ -317,7 +317,7 @@ typedef __char32_t char32_t;
 #if defined(__FreeBSD__)
 #define _LIBCPP_HAS_QUICK_EXIT
 #define _LIBCPP_HAS_C11_FEATURES
-#elif defined(__linux__)
+#elif defined(__linux__) && defined(__GLIBC__)
 #include <features.h>
 #if __GLIBC_PREREQ(2, 15)
 #define _LIBCPP_HAS_QUICK_EXIT
@@ -577,7 +577,7 @@ template <unsigned> struct __static_assert_check {};
 #define _LIBCPP_LOCALE__L_EXTENSIONS 1
 #endif
 
-#ifdef __FreeBSD__
+#if defined(__FreeBSD__) || defined(__ANDROID__)
 #define _DECLARE_C99_LDBL_MATH 1
 #endif
 
diff --git a/include/__locale b/include/__locale
index fb5b196c..2d994fd6 100644
--- a/include/__locale
+++ b/include/__locale
@@ -23,6 +23,8 @@
 # include <support/win32/locale_win32.h>
 #elif defined(_AIX)
 # include <support/ibm/xlocale.h>
+#elif defined(__ANDROID__)
+# include <support/android/locale_bionic.h>
 #elif (defined(__GLIBC__) || defined(__APPLE__) || defined(__FreeBSD__) || defined(__sun__)) || defined(__EMSCRIPTEN__) || defined(__IBMCPP__)
 # include <xlocale.h>
 #endif  // _WIN32 || __GLIBC__ || __APPLE__ || __FreeBSD__ || __sun__ || __EMSCRIPTEN__ || __IBMCPP__
diff --git a/include/cwchar b/include/cwchar
index 9f51587c..01f7cf16 100644
--- a/include/cwchar
+++ b/include/cwchar
@@ -109,6 +109,9 @@ size_t wcsrtombs(char* restrict dst, const wchar_t** restrict src, size_t len,
 #if defined(_LIBCPP_MSVCRT) || defined(__MINGW32__)
 #include <support/win32/support.h> // pull in *swprintf defines
 #endif // _LIBCPP_MSVCRT
+#ifdef __ANDROID__
+#include <support/android/wchar_bionic.h>
+#endif // __ANDROID__
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #pragma GCC system_header
diff --git a/include/locale b/include/locale
index cdfe120e..3f0fa4d1 100644
--- a/include/locale
+++ b/include/locale
@@ -193,6 +193,8 @@ template <class charT> class messages_byname;
 #include <ctime>
 #if defined(_LIBCPP_MSVCRT) || defined(__MINGW32__)
 #include <support/win32/locale_win32.h>
+#elif defined(__ANDROID__)
+#include <support/android/nl_types.h>
 #else // _LIBCPP_MSVCRT
 #include <nl_types.h>
 #endif  // !_LIBCPP_MSVCRT
diff --git a/include/support/android/langinfo.h b/include/support/android/langinfo.h
new file mode 100644
index 00000000..c706c5dc
--- /dev/null
+++ b/include/support/android/langinfo.h
@@ -0,0 +1,104 @@
+// -*- C++ -*-
+//===--------------------- support/android/langinfo.h ---------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+#ifndef _LIBCPP_SUPPORT_ANDROID_LANGINFO_H_
+#define _LIBCPP_SUPPORT_ANDROID_LANGINFO_H_
+
+#ifdef __ANDROID__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <support/android/nl_types.h>
+
+#define _NL_ITEM(category,index)  (((category) << 10) | (index))
+
+#define _NL_ITEM_CATEGORY(nl)  ((nl) >> 10)
+#define _NL_ITEM_INDEX(nl)     ((nl) & 0x3ff)
+
+#define CODESET _NL_ITEM(LC_CTYPE, 0)
+
+/* Abbreviated days of the week */
+#define ABDAY_1 _NL_ITEM(LC_TIME,1)
+#define ABDAY_2 _NL_ITEM(LC_TIME,2)
+#define ABDAY_3 _NL_ITEM(LC_TIME,3)
+#define ABDAY_4 _NL_ITEM(LC_TIME,4)
+#define ABDAY_5 _NL_ITEM(LC_TIME,5)
+#define ABDAY_6 _NL_ITEM(LC_TIME,6)
+#define ABDAY_7 _NL_ITEM(LC_TIME,7)
+
+/* Long names of the week */
+#define DAY_1   _NL_ITEM(LC_TIME,11)
+#define DAY_2   _NL_ITEM(LC_TIME,12)
+#define DAY_3   _NL_ITEM(LC_TIME,13)
+#define DAY_4   _NL_ITEM(LC_TIME,14)
+#define DAY_5   _NL_ITEM(LC_TIME,15)
+#define DAY_6   _NL_ITEM(LC_TIME,16)
+#define DAY_7   _NL_ITEM(LC_TIME,17)
+
+/* Abbreviated month names */
+#define ABMON_1  _NL_ITEM(LC_TIME,21)
+#define ABMON_2  _NL_ITEM(LC_TIME,22)
+#define ABMON_3  _NL_ITEM(LC_TIME,23)
+#define ABMON_4  _NL_ITEM(LC_TIME,24)
+#define ABMON_5  _NL_ITEM(LC_TIME,25)
+#define ABMON_6  _NL_ITEM(LC_TIME,26)
+#define ABMON_7  _NL_ITEM(LC_TIME,27)
+#define ABMON_8  _NL_ITEM(LC_TIME,28)
+#define ABMON_9  _NL_ITEM(LC_TIME,29)
+#define ABMON_10 _NL_ITEM(LC_TIME,30)
+#define ABMON_11 _NL_ITEM(LC_TIME,31)
+#define ABMON_12 _NL_ITEM(LC_TIME,32)
+
+/* Long month names */
+#define MON_1    _NL_ITEM(LC_TIME,41)
+#define MON_2    _NL_ITEM(LC_TIME,42)
+#define MON_3    _NL_ITEM(LC_TIME,43)
+#define MON_4    _NL_ITEM(LC_TIME,44)
+#define MON_5    _NL_ITEM(LC_TIME,45)
+#define MON_6    _NL_ITEM(LC_TIME,46)
+#define MON_7    _NL_ITEM(LC_TIME,47)
+#define MON_8    _NL_ITEM(LC_TIME,48)
+#define MON_9    _NL_ITEM(LC_TIME,49)
+#define MON_10   _NL_ITEM(LC_TIME,50)
+#define MON_11   _NL_ITEM(LC_TIME,51)
+#define MON_12   _NL_ITEM(LC_TIME,52)
+
+#define AM_STR      _NL_ITEM(LC_TIME,53)
+#define PM_STR      _NL_ITEM(LC_TIME,54)
+#define D_T_FMT     _NL_ITEM(LC_TIME,55)
+#define D_FMT       _NL_ITEM(LC_TIME,56)
+#define T_FMT       _NL_ITEM(LC_TIME,57)
+#define T_FMT_AMPM  _NL_ITEM(LC_TIME,58)
+#define ERA         _NL_ITEM(LC_TIME,59)
+#define ERA_D_FMT   _NL_ITEM(LC_TIME,60)
+#define ERA_D_T_FMT _NL_ITEM(LC_TIME,61)
+#define ERA_T_FMT   _NL_ITEM(LC_TIME,62)
+#define ALT_DIGITS  _NL_ITEM(LC_TIME,70)
+
+#define INT_CURRENCY_SYMBOL     _NL_ITEM(LC_MONETARY,0)
+#define CURRENCY_SYMBOL         _NL_ITEM(LC_MONETARY,1)
+#define MON_DECIMAL_POINT       _NL_ITEM(LC_MONETARY,2)
+#define MON_THOUSANDS_SEP       _NL_ITEM(LC_MONETARY,3)
+#define MON_GROUPING            _NL_ITEM(LC_MONETARY,4)
+#define POSITIVE_SIGN           _NL_ITEM(LC_MONETARY,5)
+#define NEGATIVE_SIGN           _NL_ITEM(LC_MONETARY,6)
+#define INT_FRAC_DIGITS         _NL_ITEM(LC_MONETARY,7)
+#define FRAC_DIGITS             _NL_ITEM(LC_MONETARY,8)
+
+char *nl_langinfo(nl_item);
+char *nl_langinfo_l(nl_item, locale_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __ANDROID__
+#endif  /* _LIBCPP_SUPPORT_ANDROID_LANGINFO_H_ */
diff --git a/include/support/android/locale_bionic.h b/include/support/android/locale_bionic.h
new file mode 100644
index 00000000..fa15b167
--- /dev/null
+++ b/include/support/android/locale_bionic.h
@@ -0,0 +1,68 @@
+// -*- C++ -*-
+//===------------------- support/android/locale_bionic.h ------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_SUPPORT_ANDROID_LOCALE_BIONIC_H
+#define _LIBCPP_SUPPORT_ANDROID_LOCALE_BIONIC_H
+
+#if defined(__ANDROID__)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <xlocale.h>
+
+#define isalnum_l(c, locale)                   isalnum(c)
+#define isalpha_l(c, locale)                   isalpha(c)
+#define isascii_l(c, locale)                   isascii(c)
+#define isblank_l(c, locale)                   isblank(c)
+#define iscntrl_l(c, locale)                   iscntrl(c)
+#define isdigit_l(c, locale)                   isdigit(c)
+#define isgraph_l(c, locale)                   isgraph(c)
+#define islower_l(c, locale)                   islower(c)
+#define isprint_l(c, locale)                   isprint(c)
+#define ispunct_l(c, locale)                   ispunct(c)
+#define isspace_l(c, locale)                   isspace(c)
+#define isupper_l(c, locale)                   isupper(c)
+#define isxdigit_l(c, locale)                  isxdigit(c)
+#define iswalnum_l(c, locale)                  iswalnum(c)
+#define iswalpha_l(c, locale)                  iswalpha(c)
+#define iswascii_l(c, locale)                  iswascii(c)
+#define iswblank_l(c, locale)                  iswblank(c)
+#define iswcntrl_l(c, locale)                  iswcntrl(c)
+#define iswdigit_l(c, locale)                  iswdigit(c)
+#define iswgraph_l(c, locale)                  iswgraph(c)
+#define iswlower_l(c, locale)                  iswlower(c)
+#define iswprint_l(c, locale)                  iswprint(c)
+#define iswpunct_l(c, locale)                  iswpunct(c)
+#define iswspace_l(c, locale)                  iswspace(c)
+#define iswupper_l(c, locale)                  iswupper(c)
+#define iswxdigit_l(c, locale)                 iswxdigit(c)
+#define toupper_l(c, locale)                   toupper(c)
+#define tolower_l(c, locale)                   tolower(c)
+#define towupper_l(c, locale)                  towupper(c)
+#define towlower_l(c, locale)                  towlower(c)
+#define strcoll_l(s1, s2, locale)              strcoll(s1, s2)
+#define strxfrm_l(dest, src, n, locale)        strxfrm(dest, src, n)
+#define strftime_l(s, max, format, tm, locale) strftime(s, max, format, tm)
+#define wcscoll_l(s1, s2, locale)              wcscoll(s1, s2)
+#define wcsxfrm_l(dest, src, n, locale)        wcsxfrm(dest, src, n)
+#define strtold_l(nptr, endptr, locale)        strtold(nptr, endptr)
+#define strtoll_l(nptr, endptr, base, locale)  strtoll(nptr, endptr, base)
+#define strtoull_l(nptr, endptr, base, locale) strtoull(nptr, endptr, base)
+#define wcstoll_l(nptr, endptr, locale)        wcstoll(nptr, endptr)
+#define wcstoull_l(nptr, endptr, locale)       wcstoull(nptr, endptr)
+#define wcstold_l(nptr, endptr, locale)        wcstold(nptr, endptr)
+
+#ifdef __cplusplus
+}
+#endif
+#endif // defined(__ANDROID__)
+#endif // _LIBCPP_SUPPORT_ANDROID_LOCALE_BIONIC_H
diff --git a/include/support/android/nl_types.h b/include/support/android/nl_types.h
new file mode 100644
index 00000000..e1eb63f6
--- /dev/null
+++ b/include/support/android/nl_types.h
@@ -0,0 +1,34 @@
+// -*- C++ -*-
+//===--------------------- support/android/nl_types.h ---------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+#ifndef _LIBCPP_SUPPORT_ANDROID_NL_TYPES_H
+#define _LIBCPP_SUPPORT_ANDROID_NL_TYPES_H
+
+#ifdef __ANDROID__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define NL_SETD       1
+#define NL_CAT_LOCALE 1
+
+typedef void *nl_catd;
+typedef int nl_item;
+
+nl_catd catopen(const char *, int);
+int catclose(nl_catd);
+char *catgets(nl_catd, int, int, const char *);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __ANDROID__
+#endif // _LIBCPP_SUPPORT_ANDROID_NL_TYPES_H
diff --git a/include/support/android/wchar_bionic.h b/include/support/android/wchar_bionic.h
new file mode 100644
index 00000000..91985e4d
--- /dev/null
+++ b/include/support/android/wchar_bionic.h
@@ -0,0 +1,36 @@
+// -*- C++ -*-
+//===------------------- support/android/wchar_bionic.h -------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _LIBCPP_SUPPORT_ANDROID_WCHAR_BIONIC_H
+#define _LIBCPP_SUPPORT_ANDROID_WCHAR_BIONIC_H
+
+#ifdef __ANDROID__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int vfwscanf(FILE *, const wchar_t *, va_list);
+int vswscanf(const wchar_t *, const wchar_t *, va_list);
+int vwscanf(const wchar_t *, va_list);
+float wcstof(const wchar_t *, wchar_t **);
+double wcstod(const wchar_t *, wchar_t **);
+long double wcstold(const wchar_t *, wchar_t **);
+long long wcstoll(const wchar_t *, wchar_t **, int);
+unsigned long long wcstoull(const wchar_t *, wchar_t **, int);
+size_t wcsnrtombs(char *, const wchar_t **, size_t, size_t, mbstate_t *);
+size_t mbsnrtowcs(wchar_t *, const char **, size_t, size_t, mbstate_t *);
+int mbtowc(wchar_t *, const char *, size_t);
+
+#ifdef __cplusplus
+}
+#endif
+#endif // __ANDROID__
+#endif // _LIBCPP_SUPPORT_ANDROID_WCHAR_BIONIC_H
diff --git a/src/locale.cpp b/src/locale.cpp
index 4877f2b6..afc96bd8 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 666673fc..02f6bf9d 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 00000000..d8b1ecbc
--- /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__