Add stdatomic.h to clang includes directly for the host.
Change-Id: I24710e8cf5f6751e1d88694a8bfac25dff937aeb
diff --git a/lib/clang/3.5/include/stdatomic.h b/lib/clang/3.5/include/stdatomic.h
new file mode 100644
index 0000000..adf60bb
--- /dev/null
+++ b/lib/clang/3.5/include/stdatomic.h
@@ -0,0 +1,521 @@
+/*-
+ * Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
+ * David Chisnall <theraven@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _STDATOMIC_H_
+#define _STDATOMIC_H_
+
+#include <sys/cdefs.h>
+
+#if defined(__cplusplus) && defined(_USING_LIBCXX) && \
+ (__has_feature(cxx_atomic) || _GNUC_VER >= 407)
+
+/* We have a usable C++ <atomic>; use it instead. */
+
+#include <atomic>
+
+#define _Atomic(t) std::atomic<t>
+
+using std::atomic_is_lock_free;
+using std::atomic_init;
+using std::atomic_store;
+using std::atomic_store_explicit;
+using std::atomic_load;
+using std::atomic_load_explicit;
+using std::atomic_exchange;
+using std::atomic_exchange_explicit;
+using std::atomic_compare_exchange_strong;
+using std::atomic_compare_exchange_strong_explicit;
+using std::atomic_compare_exchange_weak;
+using std::atomic_compare_exchange_weak_explicit;
+using std::atomic_fetch_add;
+using std::atomic_fetch_add_explicit;
+using std::atomic_fetch_sub;
+using std::atomic_fetch_sub_explicit;
+using std::atomic_fetch_or;
+using std::atomic_fetch_or_explicit;
+using std::atomic_fetch_xor;
+using std::atomic_fetch_xor_explicit;
+using std::atomic_fetch_and;
+using std::atomic_fetch_and_explicit;
+using std::atomic_thread_fence;
+using std::atomic_signal_fence;
+
+using std::memory_order;
+using std::memory_order_relaxed;
+using std::memory_order_consume;
+using std::memory_order_release;
+using std::memory_order_acq_rel;
+using std::memory_order_seq_cst;
+
+using std::atomic_bool;
+using std::atomic_char;
+using std::atomic_schar;
+using std::atomic_uchar;
+using std::atomic_short;
+using std::atomic_ushort;
+using std::atomic_int;
+using std::atomic_uint;
+using std::atomic_long;
+using std::atomic_ulong;
+using std::atomic_llong;
+using std::atomic_ullong;
+using std::atomic_char16_t;
+using std::atomic_char32_t;
+using std::atomic_wchar_t;
+using std::atomic_int_least8_t;
+using std::atomic_uint_least8_t;
+using std::atomic_int_least16_t;
+using std::atomic_uint_least16_t;
+using std::atomic_int_least32_t;
+using std::atomic_uint_least32_t;
+using std::atomic_int_least64_t;
+using std::atomic_uint_least64_t;
+using std::atomic_int_fast8_t;
+using std::atomic_uint_fast8_t;
+using std::atomic_int_fast16_t;
+using std::atomic_uint_fast16_t;
+using std::atomic_int_fast32_t;
+using std::atomic_uint_fast32_t;
+using std::atomic_int_fast64_t;
+using std::atomic_uint_fast64_t;
+using std::atomic_intptr_t;
+using std::atomic_uintptr_t;
+using std::atomic_size_t;
+using std::atomic_ptrdiff_t;
+using std::atomic_intmax_t;
+using std::atomic_uintmax_t;
+
+#else /* <atomic> unavailable, possibly because this is C, not C++ */
+
+#include <sys/types.h>
+#include <stdbool.h>
+
+/*
+ * C: Do it ourselves.
+ * Note that the runtime representation defined here should be compatible
+ * with the C++ one, i.e. an _Atomic(T) needs to contain the same
+ * bits as a T.
+ */
+
+#include <stddef.h> /* For ptrdiff_t. */
+#include <stdint.h> /* TODO: Should pollute namespace less. */
+#if __STDC_VERSION__ >= 201112L
+# include <uchar.h> /* For char16_t and char32_t. */
+#endif
+
+#if __has_extension(c_atomic) || __has_extension(cxx_atomic)
+#define __CLANG_ATOMICS
+#elif __GNUC_PREREQ__(4, 7)
+#define __GNUC_ATOMICS
+#elif defined(__GNUC__)
+#define __SYNC_ATOMICS
+#else
+#error "stdatomic.h does not support your compiler"
+#endif
+
+/*
+ * 7.17.1 Atomic lock-free macros.
+ */
+
+#ifdef __GCC_ATOMIC_BOOL_LOCK_FREE
+#define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_CHAR_LOCK_FREE
+#define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_CHAR16_T_LOCK_FREE
+#define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_CHAR32_T_LOCK_FREE
+#define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_WCHAR_T_LOCK_FREE
+#define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_SHORT_LOCK_FREE
+#define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_INT_LOCK_FREE
+#define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_LONG_LOCK_FREE
+#define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_LLONG_LOCK_FREE
+#define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
+#endif
+#ifdef __GCC_ATOMIC_POINTER_LOCK_FREE
+#define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE
+#endif
+
+/*
+ * 7.17.2 Initialization.
+ */
+
+#if defined(__CLANG_ATOMICS)
+#define ATOMIC_VAR_INIT(value) (value)
+#define atomic_init(obj, value) __c11_atomic_init(obj, value)
+#else
+#define ATOMIC_VAR_INIT(value) { .__val = (value) }
+#define atomic_init(obj, value) ((void)((obj)->__val = (value)))
+#endif
+
+/*
+ * Clang and recent GCC both provide predefined macros for the memory
+ * orderings. If we are using a compiler that doesn't define them, use the
+ * clang values - these will be ignored in the fallback path.
+ */
+
+#ifndef __ATOMIC_RELAXED
+#define __ATOMIC_RELAXED 0
+#endif
+#ifndef __ATOMIC_CONSUME
+#define __ATOMIC_CONSUME 1
+#endif
+#ifndef __ATOMIC_ACQUIRE
+#define __ATOMIC_ACQUIRE 2
+#endif
+#ifndef __ATOMIC_RELEASE
+#define __ATOMIC_RELEASE 3
+#endif
+#ifndef __ATOMIC_ACQ_REL
+#define __ATOMIC_ACQ_REL 4
+#endif
+#ifndef __ATOMIC_SEQ_CST
+#define __ATOMIC_SEQ_CST 5
+#endif
+
+/*
+ * 7.17.3 Order and consistency.
+ *
+ * The memory_order_* constants that denote the barrier behaviour of the
+ * atomic operations.
+ * The enum values must be identical to those used by the
+ * C++ <atomic> header.
+ */
+
+typedef enum {
+ memory_order_relaxed = __ATOMIC_RELAXED,
+ memory_order_consume = __ATOMIC_CONSUME,
+ memory_order_acquire = __ATOMIC_ACQUIRE,
+ memory_order_release = __ATOMIC_RELEASE,
+ memory_order_acq_rel = __ATOMIC_ACQ_REL,
+ memory_order_seq_cst = __ATOMIC_SEQ_CST
+} memory_order;
+
+/*
+ * 7.17.4 Fences.
+ */
+
+static __inline void
+atomic_thread_fence(memory_order __order __attribute__((unused)))
+{
+
+#ifdef __CLANG_ATOMICS
+ __c11_atomic_thread_fence(__order);
+#elif defined(__GNUC_ATOMICS)
+ __atomic_thread_fence(__order);
+#else
+ __sync_synchronize();
+#endif
+}
+
+static __inline void
+atomic_signal_fence(memory_order __order __attribute__((unused)))
+{
+
+#ifdef __CLANG_ATOMICS
+ __c11_atomic_signal_fence(__order);
+#elif defined(__GNUC_ATOMICS)
+ __atomic_signal_fence(__order);
+#else
+ __asm volatile ("" ::: "memory");
+#endif
+}
+
+/*
+ * 7.17.5 Lock-free property.
+ */
+
+#if defined(_KERNEL)
+/* Atomics in kernelspace are always lock-free. */
+#define atomic_is_lock_free(obj) \
+ ((void)(obj), (_Bool)1)
+#elif defined(__CLANG_ATOMICS)
+#define atomic_is_lock_free(obj) \
+ __c11_atomic_is_lock_free(sizeof(*(obj)))
+#elif defined(__GNUC_ATOMICS)
+#define atomic_is_lock_free(obj) \
+ __atomic_is_lock_free(sizeof((obj)->__val), &(obj)->__val)
+#else
+#define atomic_is_lock_free(obj) \
+ ((void)(obj), sizeof((obj)->__val) <= sizeof(void *))
+#endif
+
+/*
+ * 7.17.6 Atomic integer types.
+ */
+
+#if !__has_extension(c_atomic) && !__has_extension(cxx_atomic)
+/*
+ * No native support for _Atomic(). Place object in structure to prevent
+ * most forms of direct non-atomic access.
+ */
+#define _Atomic(T) struct { T volatile __val; }
+#endif
+
+typedef _Atomic(bool) atomic_bool;
+typedef _Atomic(char) atomic_char;
+typedef _Atomic(signed char) atomic_schar;
+typedef _Atomic(unsigned char) atomic_uchar;
+typedef _Atomic(short) atomic_short;
+typedef _Atomic(unsigned short) atomic_ushort;
+typedef _Atomic(int) atomic_int;
+typedef _Atomic(unsigned int) atomic_uint;
+typedef _Atomic(long) atomic_long;
+typedef _Atomic(unsigned long) atomic_ulong;
+typedef _Atomic(long long) atomic_llong;
+typedef _Atomic(unsigned long long) atomic_ullong;
+#if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L
+ typedef _Atomic(char16_t) atomic_char16_t;
+ typedef _Atomic(char32_t) atomic_char32_t;
+#endif
+typedef _Atomic(wchar_t) atomic_wchar_t;
+typedef _Atomic(int_least8_t) atomic_int_least8_t;
+typedef _Atomic(uint_least8_t) atomic_uint_least8_t;
+typedef _Atomic(int_least16_t) atomic_int_least16_t;
+typedef _Atomic(uint_least16_t) atomic_uint_least16_t;
+typedef _Atomic(int_least32_t) atomic_int_least32_t;
+typedef _Atomic(uint_least32_t) atomic_uint_least32_t;
+typedef _Atomic(int_least64_t) atomic_int_least64_t;
+typedef _Atomic(uint_least64_t) atomic_uint_least64_t;
+typedef _Atomic(int_fast8_t) atomic_int_fast8_t;
+typedef _Atomic(uint_fast8_t) atomic_uint_fast8_t;
+typedef _Atomic(int_fast16_t) atomic_int_fast16_t;
+typedef _Atomic(uint_fast16_t) atomic_uint_fast16_t;
+typedef _Atomic(int_fast32_t) atomic_int_fast32_t;
+typedef _Atomic(uint_fast32_t) atomic_uint_fast32_t;
+typedef _Atomic(int_fast64_t) atomic_int_fast64_t;
+typedef _Atomic(uint_fast64_t) atomic_uint_fast64_t;
+typedef _Atomic(intptr_t) atomic_intptr_t;
+typedef _Atomic(uintptr_t) atomic_uintptr_t;
+typedef _Atomic(size_t) atomic_size_t;
+typedef _Atomic(ptrdiff_t) atomic_ptrdiff_t;
+typedef _Atomic(intmax_t) atomic_intmax_t;
+typedef _Atomic(uintmax_t) atomic_uintmax_t;
+
+/*
+ * 7.17.7 Operations on atomic types.
+ */
+
+/*
+ * Compiler-specific operations.
+ */
+
+#if defined(__CLANG_ATOMICS)
+#define atomic_compare_exchange_strong_explicit(object, expected, \
+ desired, success, failure) \
+ __c11_atomic_compare_exchange_strong(object, expected, desired, \
+ success, failure)
+#define atomic_compare_exchange_weak_explicit(object, expected, \
+ desired, success, failure) \
+ __c11_atomic_compare_exchange_weak(object, expected, desired, \
+ success, failure)
+#define atomic_exchange_explicit(object, desired, order) \
+ __c11_atomic_exchange(object, desired, order)
+#define atomic_fetch_add_explicit(object, operand, order) \
+ __c11_atomic_fetch_add(object, operand, order)
+#define atomic_fetch_and_explicit(object, operand, order) \
+ __c11_atomic_fetch_and(object, operand, order)
+#define atomic_fetch_or_explicit(object, operand, order) \
+ __c11_atomic_fetch_or(object, operand, order)
+#define atomic_fetch_sub_explicit(object, operand, order) \
+ __c11_atomic_fetch_sub(object, operand, order)
+#define atomic_fetch_xor_explicit(object, operand, order) \
+ __c11_atomic_fetch_xor(object, operand, order)
+#define atomic_load_explicit(object, order) \
+ __c11_atomic_load(object, order)
+#define atomic_store_explicit(object, desired, order) \
+ __c11_atomic_store(object, desired, order)
+#elif defined(__GNUC_ATOMICS)
+#define atomic_compare_exchange_strong_explicit(object, expected, \
+ desired, success, failure) \
+ __atomic_compare_exchange_n(&(object)->__val, expected, \
+ desired, 0, success, failure)
+#define atomic_compare_exchange_weak_explicit(object, expected, \
+ desired, success, failure) \
+ __atomic_compare_exchange_n(&(object)->__val, expected, \
+ desired, 1, success, failure)
+#define atomic_exchange_explicit(object, desired, order) \
+ __atomic_exchange_n(&(object)->__val, desired, order)
+#define atomic_fetch_add_explicit(object, operand, order) \
+ __atomic_fetch_add(&(object)->__val, operand, order)
+#define atomic_fetch_and_explicit(object, operand, order) \
+ __atomic_fetch_and(&(object)->__val, operand, order)
+#define atomic_fetch_or_explicit(object, operand, order) \
+ __atomic_fetch_or(&(object)->__val, operand, order)
+#define atomic_fetch_sub_explicit(object, operand, order) \
+ __atomic_fetch_sub(&(object)->__val, operand, order)
+#define atomic_fetch_xor_explicit(object, operand, order) \
+ __atomic_fetch_xor(&(object)->__val, operand, order)
+#define atomic_load_explicit(object, order) \
+ __atomic_load_n(&(object)->__val, order)
+#define atomic_store_explicit(object, desired, order) \
+ __atomic_store_n(&(object)->__val, desired, order)
+#else
+#define __atomic_apply_stride(object, operand) \
+ (((__typeof__((object)->__val))0) + (operand))
+#define atomic_compare_exchange_strong_explicit(object, expected, \
+ desired, success, failure) __extension__ ({ \
+ __typeof__(expected) __ep = (expected); \
+ __typeof__(*__ep) __e = *__ep; \
+ (void)(success); (void)(failure); \
+ (bool)((*__ep = __sync_val_compare_and_swap(&(object)->__val, \
+ __e, desired)) == __e); \
+})
+#define atomic_compare_exchange_weak_explicit(object, expected, \
+ desired, success, failure) \
+ atomic_compare_exchange_strong_explicit(object, expected, \
+ desired, success, failure)
+#if __has_builtin(__sync_swap)
+/* Clang provides a full-barrier atomic exchange - use it if available. */
+#define atomic_exchange_explicit(object, desired, order) \
+ ((void)(order), __sync_swap(&(object)->__val, desired))
+#else
+/*
+ * __sync_lock_test_and_set() is only an acquire barrier in theory (although in
+ * practice it is usually a full barrier) so we need an explicit barrier before
+ * it.
+ */
+#define atomic_exchange_explicit(object, desired, order) \
+__extension__ ({ \
+ __typeof__(object) __o = (object); \
+ __typeof__(desired) __d = (desired); \
+ (void)(order); \
+ __sync_synchronize(); \
+ __sync_lock_test_and_set(&(__o)->__val, __d); \
+})
+#endif
+#define atomic_fetch_add_explicit(object, operand, order) \
+ ((void)(order), __sync_fetch_and_add(&(object)->__val, \
+ __atomic_apply_stride(object, operand)))
+#define atomic_fetch_and_explicit(object, operand, order) \
+ ((void)(order), __sync_fetch_and_and(&(object)->__val, operand))
+#define atomic_fetch_or_explicit(object, operand, order) \
+ ((void)(order), __sync_fetch_and_or(&(object)->__val, operand))
+#define atomic_fetch_sub_explicit(object, operand, order) \
+ ((void)(order), __sync_fetch_and_sub(&(object)->__val, \
+ __atomic_apply_stride(object, operand)))
+#define atomic_fetch_xor_explicit(object, operand, order) \
+ ((void)(order), __sync_fetch_and_xor(&(object)->__val, operand))
+#define atomic_load_explicit(object, order) \
+ ((void)(order), __sync_fetch_and_add(&(object)->__val, 0))
+#define atomic_store_explicit(object, desired, order) \
+ ((void)atomic_exchange_explicit(object, desired, order))
+#endif
+
+/*
+ * Convenience functions.
+ *
+ * Don't provide these in kernel space. In kernel space, we should be
+ * disciplined enough to always provide explicit barriers.
+ */
+
+#ifndef _KERNEL
+#define atomic_compare_exchange_strong(object, expected, desired) \
+ atomic_compare_exchange_strong_explicit(object, expected, \
+ desired, memory_order_seq_cst, memory_order_seq_cst)
+#define atomic_compare_exchange_weak(object, expected, desired) \
+ atomic_compare_exchange_weak_explicit(object, expected, \
+ desired, memory_order_seq_cst, memory_order_seq_cst)
+#define atomic_exchange(object, desired) \
+ atomic_exchange_explicit(object, desired, memory_order_seq_cst)
+#define atomic_fetch_add(object, operand) \
+ atomic_fetch_add_explicit(object, operand, memory_order_seq_cst)
+#define atomic_fetch_and(object, operand) \
+ atomic_fetch_and_explicit(object, operand, memory_order_seq_cst)
+#define atomic_fetch_or(object, operand) \
+ atomic_fetch_or_explicit(object, operand, memory_order_seq_cst)
+#define atomic_fetch_sub(object, operand) \
+ atomic_fetch_sub_explicit(object, operand, memory_order_seq_cst)
+#define atomic_fetch_xor(object, operand) \
+ atomic_fetch_xor_explicit(object, operand, memory_order_seq_cst)
+#define atomic_load(object) \
+ atomic_load_explicit(object, memory_order_seq_cst)
+#define atomic_store(object, desired) \
+ atomic_store_explicit(object, desired, memory_order_seq_cst)
+#endif /* !_KERNEL */
+
+/*
+ * 7.17.8 Atomic flag type and operations.
+ *
+ * XXX: Assume atomic_bool can be used as an atomic_flag. Is there some
+ * kind of compiler built-in type we could use?
+ */
+
+typedef struct {
+ atomic_bool __flag;
+} atomic_flag;
+
+#define ATOMIC_FLAG_INIT { ATOMIC_VAR_INIT(false) }
+
+static __inline bool
+atomic_flag_test_and_set_explicit(volatile atomic_flag *__object,
+ memory_order __order)
+{
+ return (atomic_exchange_explicit(&__object->__flag, 1, __order));
+}
+
+static __inline void
+atomic_flag_clear_explicit(volatile atomic_flag *__object, memory_order __order)
+{
+
+ atomic_store_explicit(&__object->__flag, 0, __order);
+}
+
+#ifndef _KERNEL
+static __inline bool
+atomic_flag_test_and_set(volatile atomic_flag *__object)
+{
+
+ return (atomic_flag_test_and_set_explicit(__object,
+ memory_order_seq_cst));
+}
+
+static __inline void
+atomic_flag_clear(volatile atomic_flag *__object)
+{
+
+ atomic_flag_clear_explicit(__object, memory_order_seq_cst);
+}
+#endif /* !_KERNEL */
+
+#endif /* <atomic> unavailable */
+
+#endif /* !_STDATOMIC_H_ */
diff --git a/update.sh b/update.sh
index 1a4d856..f44d9f3 100755
--- a/update.sh
+++ b/update.sh
@@ -24,6 +24,10 @@
cp -a $i lib/clang/*/include/
done
+# Copy over stdatomic.h from bionic
+echo Copying stdatomic.h
+cp -a ${ANDROID_BUILD_TOP}/bionic/libc/include/stdatomic.h lib/clang/*/include/
+
echo Copying arm_neon.h
cp -a `find ${ANDROID_PRODUCT_OUT} -name arm_neon.h` lib/clang/*/include
