Change stdatomic.h to symlink
Change-Id: Id2f549748fb851db7dfd032744f32a4015d2f493
diff --git a/sysroot/usr/include/stdatomic.h b/sysroot/usr/include/stdatomic.h
deleted file mode 100644
index adf60bb..0000000
--- a/sysroot/usr/include/stdatomic.h
+++ /dev/null
@@ -1,521 +0,0 @@
-/*-
- * 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/sysroot/usr/include/stdatomic.h b/sysroot/usr/include/stdatomic.h
new file mode 120000
index 0000000..b79fbfe
--- /dev/null
+++ b/sysroot/usr/include/stdatomic.h
@@ -0,0 +1 @@
+../../../../../../../../bionic/libc/include/stdatomic.h
\ No newline at end of file
