diff --git a/cpu/msp430_common/include/stdatomic.h b/cpu/msp430_common/include/stdatomic.h new file mode 100644 index 0000000000..8efd6ea95f --- /dev/null +++ b/cpu/msp430_common/include/stdatomic.h @@ -0,0 +1,425 @@ +/*- + * Copyright (c) 2011 Ed Schouten + * David Chisnall + * 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. + * + * $FreeBSD$ + */ + +/* This file was imported into RIOT from newlib 2.3.0 */ + +#ifndef STDATOMIC_H_ +#define STDATOMIC_H_ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#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. + */ + +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) +{ + +#ifdef __CLANG_ATOMICS + __c11_atomic_thread_fence(__order); +#elif defined(__GNUC_ATOMICS) + __atomic_thread_fence(__order); +#else + (void) __order; + __sync_synchronize(); +#endif +} + +static __inline void +atomic_signal_fence(memory_order __order) +{ + +#ifdef __CLANG_ATOMICS + __c11_atomic_signal_fence(__order); +#elif defined(__GNUC_ATOMICS) + __atomic_signal_fence(__order); +#else + (void) __order; + __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) \ + __atomic_is_lock_free(sizeof(*(obj)), 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. + */ + +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 0 +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(0) } + +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 */ + +#ifdef __cplusplus +} +#endif + +#endif /* !_STDATOMIC_H_ */ diff --git a/cpu/msp430_common/include/sys/cdefs.h b/cpu/msp430_common/include/sys/cdefs.h new file mode 100644 index 0000000000..19c773b81c --- /dev/null +++ b/cpu/msp430_common/include/sys/cdefs.h @@ -0,0 +1,711 @@ +/* libc/sys/linux/sys/cdefs.h - Helper macros for K&R vs. ANSI C compat. */ + +/* Written 2000 by Werner Almesberger */ + +/*- + * Copyright (c) 1991, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Berkeley Software Design, Inc. + * + * 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. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * @(#)cdefs.h 8.8 (Berkeley) 1/9/95 + * $FreeBSD$ + */ + +/* This file was imported into RIOT from newlib 2.3.0 */ + +#ifndef _SYS_CDEFS_H_ +#define _SYS_CDEFS_H_ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +#define __PMT(args) args +#define __DOTS , ... +#define __THROW + +#ifdef __GNUC__ +# define __ASMNAME(cname) __XSTRING (__USER_LABEL_PREFIX__) cname +#endif + +#define __ptr_t void * +#define __long_double_t long double + +#define __attribute_malloc__ +#define __attribute_pure__ +#define __attribute_format_strfmon__(a,b) +#define __flexarr [0] + +#ifndef __BOUNDED_POINTERS__ +# define __bounded /* nothing */ +# define __unbounded /* nothing */ +# define __ptrvalue /* nothing */ +#endif + +/* + * Testing against Clang-specific extensions. + */ +#ifndef __has_attribute +#define __has_attribute(x) 0 +#endif +#ifndef __has_extension +#define __has_extension __has_feature +#endif +#ifndef __has_feature +#define __has_feature(x) 0 +#endif +#ifndef __has_include +#define __has_include(x) 0 +#endif +#ifndef __has_builtin +#define __has_builtin(x) 0 +#endif + +#if defined(__cplusplus) +#define __BEGIN_DECLS extern "C" { +#define __END_DECLS } +#else +#define __BEGIN_DECLS +#define __END_DECLS +#endif + +/* + * This code has been put in place to help reduce the addition of + * compiler specific defines in FreeBSD code. It helps to aid in + * having a compiler-agnostic source tree. + */ + +#if defined(__GNUC__) || defined(__INTEL_COMPILER) + +#if __GNUC__ >= 3 || defined(__INTEL_COMPILER) +#define __GNUCLIKE_ASM 3 +#define __GNUCLIKE_MATH_BUILTIN_CONSTANTS +#else +#define __GNUCLIKE_ASM 2 +#endif +#define __GNUCLIKE___TYPEOF 1 +#define __GNUCLIKE___OFFSETOF 1 +#define __GNUCLIKE___SECTION 1 + +#ifndef __INTEL_COMPILER +#define __GNUCLIKE_CTOR_SECTION_HANDLING 1 +#endif + +#define __GNUCLIKE_BUILTIN_CONSTANT_P 1 +#if defined(__INTEL_COMPILER) && defined(__cplusplus) && \ + __INTEL_COMPILER < 800 +#undef __GNUCLIKE_BUILTIN_CONSTANT_P +#endif + +#if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3) +#define __GNUCLIKE_BUILTIN_VARARGS 1 +#define __GNUCLIKE_BUILTIN_STDARG 1 +#define __GNUCLIKE_BUILTIN_VAALIST 1 +#endif + +#if defined(__GNUC__) +#define __GNUC_VA_LIST_COMPATIBILITY 1 +#endif + +/* + * Compiler memory barriers, specific to gcc and clang. + */ +#if defined(__GNUC__) +#define __compiler_membar() __asm __volatile(" " : : : "memory") +#endif + +#ifndef __INTEL_COMPILER +#define __GNUCLIKE_BUILTIN_NEXT_ARG 1 +#define __GNUCLIKE_MATH_BUILTIN_RELOPS +#endif + +#define __GNUCLIKE_BUILTIN_MEMCPY 1 + +/* XXX: if __GNUC__ >= 2: not tested everywhere originally, where replaced */ +#define __CC_SUPPORTS_INLINE 1 +#define __CC_SUPPORTS___INLINE 1 +#define __CC_SUPPORTS___INLINE__ 1 + +#define __CC_SUPPORTS___FUNC__ 1 +#define __CC_SUPPORTS_WARNING 1 + +#define __CC_SUPPORTS_VARADIC_XXX 1 /* see varargs.h */ + +#define __CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1 + +#endif /* __GNUC__ || __INTEL_COMPILER */ + +/* + * The __CONCAT macro is used to concatenate parts of symbol names, e.g. + * with "#define OLD(foo) __CONCAT(old,foo)", OLD(foo) produces oldfoo. + * The __CONCAT macro is a bit tricky to use if it must work in non-ANSI + * mode -- there must be no spaces between its arguments, and for nested + * __CONCAT's, all the __CONCAT's must be at the left. __CONCAT can also + * concatenate double-quoted strings produced by the __STRING macro, but + * this only works with ANSI C. + * + * __XSTRING is like __STRING, but it expands any macros in its argument + * first. It is only available with ANSI C. + */ +#if defined(__STDC__) || defined(__cplusplus) +#define __P(protos) protos /* full-blown ANSI C */ +#define __CONCAT1(x,y) x ## y +#define __CONCAT(x,y) __CONCAT1(x,y) +#define __STRING(x) #x /* stringify without expanding x */ +#define __XSTRING(x) __STRING(x) /* expand x, then stringify */ + +#define __const const /* define reserved names to standard */ +#define __signed signed +#define __volatile volatile +#if defined(__cplusplus) +#define __inline inline /* convert to C++ keyword */ +#else +#if !(defined(__CC_SUPPORTS___INLINE)) +#define __inline /* delete GCC keyword */ +#endif /* ! __CC_SUPPORTS___INLINE */ +#endif /* !__cplusplus */ + +#else /* !(__STDC__ || __cplusplus) */ +#define __P(protos) () /* traditional C preprocessor */ +#define __CONCAT(x,y) x/**/y +#define __STRING(x) "x" + +#if !defined(__CC_SUPPORTS___INLINE) +#define __const /* delete pseudo-ANSI C keywords */ +#define __inline +#define __signed +#define __volatile +/* + * In non-ANSI C environments, new programs will want ANSI-only C keywords + * deleted from the program and old programs will want them left alone. + * When using a compiler other than gcc, programs using the ANSI C keywords + * const, inline etc. as normal identifiers should define -DNO_ANSI_KEYWORDS. + * When using "gcc -traditional", we assume that this is the intent; if + * __GNUC__ is defined but __STDC__ is not, we leave the new keywords alone. + */ +#ifndef NO_ANSI_KEYWORDS +#define const /* delete ANSI C keywords */ +#define inline +#define signed +#define volatile +#endif /* !NO_ANSI_KEYWORDS */ +#endif /* !__CC_SUPPORTS___INLINE */ +#endif /* !(__STDC__ || __cplusplus) */ + +/* + * Compiler-dependent macros to help declare dead (non-returning) and + * pure (no side effects) functions, and unused variables. They are + * null except for versions of gcc that are known to support the features + * properly (old versions of gcc-2 supported the dead and pure features + * in a different (wrong) way). If we do not provide an implementation + * for a given compiler, let the compile fail if it is told to use + * a feature that we cannot live without. + */ +#ifdef lint +#define __dead2 +#define __pure2 +#define __unused +#define __packed +#define __aligned(x) +#define __alloc_align(x) +#define __alloc_size(x) +#define __section(x) +#define __weak_symbol +#else +#define __weak_symbol __attribute__((__weak__)) +#if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER) +#define __dead2 +#define __pure2 +#define __unused +#endif +#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER) +#define __dead2 __attribute__((__noreturn__)) +#define __pure2 __attribute__((__const__)) +#define __unused +/* XXX Find out what to do for __packed, __aligned and __section */ +#endif +#if __GNUC_PREREQ__(2, 7) || defined(__INTEL_COMPILER) +#define __dead2 __attribute__((__noreturn__)) +#define __pure2 __attribute__((__const__)) +#define __unused __attribute__((__unused__)) +#define __used __attribute__((__used__)) +#define __packed __attribute__((__packed__)) +#define __aligned(x) __attribute__((__aligned__(x))) +#define __section(x) __attribute__((__section__(x))) +#endif +#if __GNUC_PREREQ__(4, 3) || __has_attribute(__alloc_size__) +#define __alloc_size(x) __attribute__((__alloc_size__(x))) +#else +#define __alloc_size(x) +#endif +#if __GNUC_PREREQ__(4, 9) || __has_attribute(__alloc_align__) +#define __alloc_align(x) __attribute__((__alloc_align__(x))) +#else +#define __alloc_align(x) +#endif +#endif /* lint */ + +#if !__GNUC_PREREQ__(2, 95) +#define __alignof(x) __offsetof(struct { char __a; x __b; }, __b) +#endif + +/* + * Keywords added in C11. + */ + +#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 201112L || defined(lint) + +#if !__has_extension(c_alignas) +#if (defined(__cplusplus) && __cplusplus >= 201103L) || \ + __has_extension(cxx_alignas) +#define _Alignas(x) alignas(x) +#else +/* XXX: Only emulates _Alignas(constant-expression); not _Alignas(type-name). */ +#define _Alignas(x) __aligned(x) +#endif +#endif + +#if defined(__cplusplus) && __cplusplus >= 201103L +#define _Alignof(x) alignof(x) +#else +#define _Alignof(x) __alignof(x) +#endif + +#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 + +#if defined(__cplusplus) && __cplusplus >= 201103L +#define _Noreturn [[noreturn]] +#else +#define _Noreturn __dead2 +#endif + +#if !__has_extension(c_static_assert) +#if (defined(__cplusplus) && __cplusplus >= 201103L) || \ + __has_extension(cxx_static_assert) +#define _Static_assert(x, y) static_assert(x, y) +#elif __GNUC_PREREQ__(4,6) +/* Nothing, gcc 4.6 and higher has _Static_assert built-in */ +#elif defined(__COUNTER__) +#define _Static_assert(x, y) __Static_assert(x, __COUNTER__) +#define __Static_assert(x, y) ___Static_assert(x, y) +#define ___Static_assert(x, y) typedef char __assert_ ## y[(x) ? 1 : -1] \ + __unused +#else +#define _Static_assert(x, y) struct __hack +#endif +#endif + +#if !__has_extension(c_thread_local) +/* + * XXX: Some compilers (Clang 3.3, GCC 4.7) falsely announce C++11 mode + * without actually supporting the thread_local keyword. Don't check for + * the presence of C++11 when defining _Thread_local. + */ +#if /* (defined(__cplusplus) && __cplusplus >= 201103L) || */ \ + __has_extension(cxx_thread_local) +#define _Thread_local thread_local +#else +#define _Thread_local __thread +#endif +#endif + +#endif /* __STDC_VERSION__ || __STDC_VERSION__ < 201112L */ + +/* + * Emulation of C11 _Generic(). Unlike the previously defined C11 + * keywords, it is not possible to implement this using exactly the same + * syntax. Therefore implement something similar under the name + * __generic(). Unlike _Generic(), this macro can only distinguish + * between a single type, so it requires nested invocations to + * distinguish multiple cases. + */ + +#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \ + __has_extension(c_generic_selections) +#define __generic(expr, t, yes, no) \ + _Generic(expr, t: yes, default: no) +#elif __GNUC_PREREQ__(3, 1) && !defined(__cplusplus) +#define __generic(expr, t, yes, no) \ + __builtin_choose_expr( \ + __builtin_types_compatible_p(__typeof(expr), t), yes, no) +#endif + +#if __GNUC_PREREQ__(2, 96) +#define __malloc_like __attribute__((__malloc__)) +#define __pure __attribute__((__pure__)) +#else +#define __malloc_like +#define __pure +#endif + +#if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800) +#define __always_inline __attribute__((__always_inline__)) +#else +#define __always_inline +#endif + +#if __GNUC_PREREQ__(3, 1) +#define __noinline __attribute__ ((__noinline__)) +#else +#define __noinline +#endif + +#if __GNUC_PREREQ__(3, 3) +#define __nonnull(x) __attribute__((__nonnull__(x))) +#define __nonnull_all __attribute__((__nonnull__)) +#else +#define __nonnull(x) +#define __nonnull_all +#endif + +#if __GNUC_PREREQ__(3, 4) +#define __fastcall __attribute__((__fastcall__)) +#define __result_use_check __attribute__((__warn_unused_result__)) +#else +#define __fastcall +#define __result_use_check +#endif + +#if __GNUC_PREREQ__(4, 1) +#define __returns_twice __attribute__((__returns_twice__)) +#else +#define __returns_twice +#endif + +#if __GNUC_PREREQ__(4, 6) || __has_builtin(__builtin_unreachable) +#define __unreachable() __builtin_unreachable() +#else +#define __unreachable() ((void)0) +#endif + +/* XXX: should use `#if __STDC_VERSION__ < 199901'. */ +#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) +#define __func__ NULL +#endif + +/* + * GCC 2.95 provides `__restrict' as an extension to C90 to support the + * C99-specific `restrict' type qualifier. We happen to use `__restrict' as + * a way to define the `restrict' type qualifier without disturbing older + * software that is unaware of C99 keywords. + */ +#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95) +#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901 || defined(lint) +#define __restrict +#else +#define __restrict restrict +#endif +#endif + +/* + * GNU C version 2.96 adds explicit branch prediction so that + * the CPU back-end can hint the processor and also so that + * code blocks can be reordered such that the predicted path + * sees a more linear flow, thus improving cache behavior, etc. + * + * The following two macros provide us with a way to utilize this + * compiler feature. Use __predict_true() if you expect the expression + * to evaluate to true, and __predict_false() if you expect the + * expression to evaluate to false. + * + * A few notes about usage: + * + * * Generally, __predict_false() error condition checks (unless + * you have some _strong_ reason to do otherwise, in which case + * document it), and/or __predict_true() `no-error' condition + * checks, assuming you want to optimize for the no-error case. + * + * * Other than that, if you don't know the likelihood of a test + * succeeding from empirical or other `hard' evidence, don't + * make predictions. + * + * * These are meant to be used in places that are run `a lot'. + * It is wasteful to make predictions in code that is run + * seldomly (e.g. at subsystem initialization time) as the + * basic block reordering that this affects can often generate + * larger code. + */ +#if __GNUC_PREREQ__(2, 96) +#define __predict_true(exp) __builtin_expect((exp), 1) +#define __predict_false(exp) __builtin_expect((exp), 0) +#else +#define __predict_true(exp) (exp) +#define __predict_false(exp) (exp) +#endif + +#if __GNUC_PREREQ__(4, 0) +#define __sentinel __attribute__((__sentinel__)) +#define __exported __attribute__((__visibility__("default"))) +#define __hidden __attribute__((__visibility__("hidden"))) +#else +#define __sentinel +#define __exported +#define __hidden +#endif + +#define __offsetof(type, field) offsetof(type, field) +#define __rangeof(type, start, end) \ + (__offsetof(type, end) - __offsetof(type, start)) + +/* + * Given the pointer x to the member m of the struct s, return + * a pointer to the containing structure. When using GCC, we first + * assign pointer x to a local variable, to check that its type is + * compatible with member m. + */ +#if __GNUC_PREREQ__(3, 1) +#define __containerof(x, s, m) ({ \ + const volatile __typeof(((s *)0)->m) *__x = (x); \ + __DEQUALIFY(s *, (const volatile char *)__x - __offsetof(s, m));\ +}) +#else +#define __containerof(x, s, m) \ + __DEQUALIFY(s *, (const volatile char *)(x) - __offsetof(s, m)) +#endif + +/* + * Compiler-dependent macros to declare that functions take printf-like + * or scanf-like arguments. They are null except for versions of gcc + * that are known to support the features properly (old versions of gcc-2 + * didn't permit keeping the keywords out of the application namespace). + */ +#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER) +#define __printflike(fmtarg, firstvararg) +#define __scanflike(fmtarg, firstvararg) +#define __format_arg(fmtarg) +#define __strfmonlike(fmtarg, firstvararg) +#define __strftimelike(fmtarg, firstvararg) +#else +#define __printflike(fmtarg, firstvararg) \ + __attribute__((__format__ (__printf__, fmtarg, firstvararg))) +#define __scanflike(fmtarg, firstvararg) \ + __attribute__((__format__ (__scanf__, fmtarg, firstvararg))) +#define __format_arg(fmtarg) __attribute__((__format_arg__ (fmtarg))) +#define __strfmonlike(fmtarg, firstvararg) \ + __attribute__((__format__ (__strfmon__, fmtarg, firstvararg))) +#define __strftimelike(fmtarg, firstvararg) \ + __attribute__((__format__ (__strftime__, fmtarg, firstvararg))) +#endif + +/* + * FORTIFY_SOURCE, and perhaps other compiler-specific features, require + * the use of non-standard inlining. In general we should try to avoid + * using these but GCC-compatible compilers tend to support the extensions + * well enough to use them in limited cases. + */ +#if defined(__GNUC_GNU_INLINE__) || defined(__GNUC_STDC_INLINE__) +#if __GNUC_PREREQ__(4, 3) || __has_attribute(__artificial__) +#define __gnu_inline __attribute__((__gnu_inline__, __artificial__)) +#else +#define __gnu_inline __attribute__((__gnu_inline__)) +#endif /* artificial */ +#else +#define __gnu_inline +#endif + +/* Compiler-dependent macros that rely on FreeBSD-specific extensions. */ +#if defined(__FreeBSD_cc_version) && __FreeBSD_cc_version >= 300001 && \ + defined(__GNUC__) && !defined(__INTEL_COMPILER) +#define __printf0like(fmtarg, firstvararg) \ + __attribute__((__format__ (__printf0__, fmtarg, firstvararg))) +#else +#define __printf0like(fmtarg, firstvararg) +#endif + +#if defined(__GNUC__) || defined(__INTEL_COMPILER) +#ifndef __INTEL_COMPILER +#define __strong_reference(sym,aliassym) \ + extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym))) +#endif +#ifdef __ELF__ +#ifdef __STDC__ +#define __weak_reference(sym,alias) \ + __asm__(".weak " #alias); \ + __asm__(".equ " #alias ", " #sym) +#define __warn_references(sym,msg) \ + __asm__(".section .gnu.warning." #sym); \ + __asm__(".asciz \"" msg "\""); \ + __asm__(".previous") +#define __sym_compat(sym,impl,verid) \ + __asm__(".symver " #impl ", " #sym "@" #verid) +#define __sym_default(sym,impl,verid) \ + __asm__(".symver " #impl ", " #sym "@@" #verid) +#else +#define __weak_reference(sym,alias) \ + __asm__(".weak alias"); \ + __asm__(".equ alias, sym") +#define __warn_references(sym,msg) \ + __asm__(".section .gnu.warning.sym"); \ + __asm__(".asciz \"msg\""); \ + __asm__(".previous") +#define __sym_compat(sym,impl,verid) \ + __asm__(".symver impl, sym@verid") +#define __sym_default(impl,sym,verid) \ + __asm__(".symver impl, sym@@verid") +#endif /* __STDC__ */ +#else /* !__ELF__ */ +#ifdef __STDC__ +#define __weak_reference(sym,alias) \ + __asm__(".stabs \"_" #alias "\",11,0,0,0"); \ + __asm__(".stabs \"_" #sym "\",1,0,0,0") +#define __warn_references(sym,msg) \ + __asm__(".stabs \"" msg "\",30,0,0,0"); \ + __asm__(".stabs \"_" #sym "\",1,0,0,0") +#else +#define __weak_reference(sym,alias) \ + __asm__(".stabs \"_/**/alias\",11,0,0,0"); \ + __asm__(".stabs \"_/**/sym\",1,0,0,0") +#define __warn_references(sym,msg) \ + __asm__(".stabs msg,30,0,0,0"); \ + __asm__(".stabs \"_/**/sym\",1,0,0,0") +#endif /* __STDC__ */ +#endif /* __ELF__ */ +#endif /* __GNUC__ || __INTEL_COMPILER */ + +#ifndef __FBSDID +#define __FBSDID(s) struct __hack +#endif + +#ifndef __RCSID +#define __RCSID(s) struct __hack +#endif + +#ifndef __RCSID_SOURCE +#define __RCSID_SOURCE(s) struct __hack +#endif + +#ifndef __SCCSID +#define __SCCSID(s) struct __hack +#endif + +#ifndef __COPYRIGHT +#define __COPYRIGHT(s) struct __hack +#endif + +#ifndef __DECONST +#define __DECONST(type, var) ((type)(__uintptr_t)(const void *)(var)) +#endif + +#ifndef __DEVOLATILE +#define __DEVOLATILE(type, var) ((type)(__uintptr_t)(volatile void *)(var)) +#endif + +#ifndef __DEQUALIFY +#define __DEQUALIFY(type, var) ((type)(__uintptr_t)(const volatile void *)(var)) +#endif + +/* + * Type Safety Checking + * + * Clang provides additional attributes to enable checking type safety + * properties that cannot be enforced by the C type system. + */ + +#if __has_attribute(__argument_with_type_tag__) && \ + __has_attribute(__type_tag_for_datatype__) && !defined(lint) +#define __arg_type_tag(arg_kind, arg_idx, type_tag_idx) \ + __attribute__((__argument_with_type_tag__(arg_kind, arg_idx, type_tag_idx))) +#define __datatype_type_tag(kind, type) \ + __attribute__((__type_tag_for_datatype__(kind, type))) +#else +#define __arg_type_tag(arg_kind, arg_idx, type_tag_idx) +#define __datatype_type_tag(kind, type) +#endif + +/* + * Lock annotations. + * + * Clang provides support for doing basic thread-safety tests at + * compile-time, by marking which locks will/should be held when + * entering/leaving a functions. + * + * Furthermore, it is also possible to annotate variables and structure + * members to enforce that they are only accessed when certain locks are + * held. + */ + +#if __has_extension(c_thread_safety_attributes) +#define __lock_annotate(x) __attribute__((x)) +#else +#define __lock_annotate(x) +#endif + +/* Structure implements a lock. */ +#define __lockable __lock_annotate(lockable) + +/* Function acquires an exclusive or shared lock. */ +#define __locks_exclusive(...) \ + __lock_annotate(exclusive_lock_function(__VA_ARGS__)) +#define __locks_shared(...) \ + __lock_annotate(shared_lock_function(__VA_ARGS__)) + +/* Function attempts to acquire an exclusive or shared lock. */ +#define __trylocks_exclusive(...) \ + __lock_annotate(exclusive_trylock_function(__VA_ARGS__)) +#define __trylocks_shared(...) \ + __lock_annotate(shared_trylock_function(__VA_ARGS__)) + +/* Function releases a lock. */ +#define __unlocks(...) __lock_annotate(unlock_function(__VA_ARGS__)) + +/* Function asserts that an exclusive or shared lock is held. */ +#define __asserts_exclusive(...) \ + __lock_annotate(assert_exclusive_lock(__VA_ARGS__)) +#define __asserts_shared(...) \ + __lock_annotate(assert_shared_lock(__VA_ARGS__)) + +/* Function requires that an exclusive or shared lock is or is not held. */ +#define __requires_exclusive(...) \ + __lock_annotate(exclusive_locks_required(__VA_ARGS__)) +#define __requires_shared(...) \ + __lock_annotate(shared_locks_required(__VA_ARGS__)) +#define __requires_unlocked(...) \ + __lock_annotate(locks_excluded(__VA_ARGS__)) + +/* Function should not be analyzed. */ +#define __no_lock_analysis __lock_annotate(no_thread_safety_analysis) + +/* Guard variables and structure members by lock. */ +#define __guarded_by(x) __lock_annotate(guarded_by(x)) +#define __pt_guarded_by(x) __lock_annotate(pt_guarded_by(x)) + +#ifdef __cplusplus +} +#endif + +#endif /* !_SYS_CDEFS_H_ */ diff --git a/cpu/msp430_common/include/sys/features.h b/cpu/msp430_common/include/sys/features.h new file mode 100644 index 0000000000..ce4da2772b --- /dev/null +++ b/cpu/msp430_common/include/sys/features.h @@ -0,0 +1,514 @@ +/* + * Written by Joel Sherrill . + * + * COPYRIGHT (c) 1989-2014. + * + * On-Line Applications Research Corporation (OAR). + * + * Permission to use, copy, modify, and distribute this software for any + * purpose without fee is hereby granted, provided that this entire notice + * is included in all copies of any software which is or includes a copy + * or modification of this software. + * + * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED + * WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION + * OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS + * SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. + * + * $Id$ + */ + +/* This file was imported into RIOT from newlib 2.3.0 */ + +#ifndef _SYS_FEATURES_H +#define _SYS_FEATURES_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* Macro to test version of GCC. Returns 0 for non-GCC or too old GCC. */ +#ifndef __GNUC_PREREQ +# if defined __GNUC__ && defined __GNUC_MINOR__ +# define __GNUC_PREREQ(maj, min) \ + ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) +# else +# define __GNUC_PREREQ(maj, min) 0 +# endif +#endif /* __GNUC_PREREQ */ +/* Version with trailing underscores for BSD compatibility. */ +#define __GNUC_PREREQ__(ma, mi) __GNUC_PREREQ(ma, mi) + + +/* + * Feature test macros control which symbols are exposed by the system + * headers. Any of these must be defined before including any headers. + * + * __STRICT_ANSI__ (defined by gcc -ansi, -std=c90, -std=c99, or -std=c11) + * ISO C + * + * _POSIX_SOURCE (deprecated by _POSIX_C_SOURCE=1) + * _POSIX_C_SOURCE >= 1 + * POSIX.1-1990 + * + * _POSIX_C_SOURCE >= 2 + * POSIX.2-1992 + * + * _POSIX_C_SOURCE >= 199309L + * POSIX.1b-1993 Real-time extensions + * + * _POSIX_C_SOURCE >= 199506L + * POSIX.1c-1995 Threads extensions + * + * _POSIX_C_SOURCE >= 200112L + * POSIX.1-2001 and C99 + * + * _POSIX_C_SOURCE >= 200809L + * POSIX.1-2008 + * + * _XOPEN_SOURCE + * POSIX.1-1990 and XPG4 + * + * _XOPEN_SOURCE_EXTENDED + * SUSv1 (POSIX.2-1992 plus XPG4v2) + * + * _XOPEN_SOURCE >= 500 + * SUSv2 (POSIX.1c-1995 plus XSI) + * + * _XOPEN_SOURCE >= 600 + * SUSv3 (POSIX.1-2001 plus XSI) and C99 + * + * _XOPEN_SOURCE >= 700 + * SUSv4 (POSIX.1-2008 plus XSI) + * + * _ISOC99_SOURCE or gcc -std=c99 or g++ + * ISO C99 + * + * _ISOC11_SOURCE or gcc -std=c11 or g++ -std=c++11 + * ISO C11 + * + * _ATFILE_SOURCE (implied by _POSIX_C_SOURCE >= 200809L) + * "at" functions + * + * _LARGEFILE_SOURCE (deprecated by _XOPEN_SOURCE >= 500) + * fseeko, ftello + * + * _GNU_SOURCE + * All of the above plus GNU extensions + * + * _BSD_SOURCE (deprecated by _DEFAULT_SOURCE) + * _SVID_SOURCE (deprecated by _DEFAULT_SOURCE) + * _DEFAULT_SOURCE (or none of the above) + * POSIX-1.2008 with BSD and SVr4 extensions + */ + +#ifdef _GNU_SOURCE +#undef _ATFILE_SOURCE +#define _ATFILE_SOURCE 1 +#undef _DEFAULT_SOURCE +#define _DEFAULT_SOURCE 1 +#undef _ISOC99_SOURCE +#define _ISOC99_SOURCE 1 +#undef _ISOC11_SOURCE +#define _ISOC11_SOURCE 1 +#undef _POSIX_SOURCE +#define _POSIX_SOURCE 1 +#undef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#undef _XOPEN_SOURCE +#define _XOPEN_SOURCE 700 +#undef _XOPEN_SOURCE_EXTENDED +#define _XOPEN_SOURCE_EXTENDED 1 +#endif /* _GNU_SOURCE */ + +#if defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || \ + (!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE) && \ + !defined(_ISOC99_SOURCE) && !defined(_POSIX_SOURCE) && \ + !defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)) +#undef _DEFAULT_SOURCE +#define _DEFAULT_SOURCE 1 +#endif + +#if defined(_DEFAULT_SOURCE) +#undef _POSIX_SOURCE +#define _POSIX_SOURCE 1 +#undef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif + +#if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) && \ + ((!defined(__STRICT_ANSI__) && !defined(_ANSI_SOURCE)) || \ + (_XOPEN_SOURCE - 0) >= 500) +#define _POSIX_SOURCE 1 +#if !defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE - 0) >= 700 +#define _POSIX_C_SOURCE 200809L +#elif (_XOPEN_SOURCE - 0) >= 600 +#define _POSIX_C_SOURCE 200112L +#elif (_XOPEN_SOURCE - 0) >= 500 +#define _POSIX_C_SOURCE 199506L +#elif (_XOPEN_SOURCE - 0) < 500 +#define _POSIX_C_SOURCE 2 +#endif +#endif + +#if defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200809 +#undef _ATFILE_SOURCE +#define _ATFILE_SOURCE 1 +#endif + +/* + * The following private macros are used throughout the headers to control + * which symbols should be exposed. They are for internal use only, as + * indicated by the leading double underscore, and must never be used outside + * of these headers. + * + * __POSIX_VISIBLE + * any version of POSIX.1; enabled by default, or with _POSIX_SOURCE, + * any value of _POSIX_C_SOURCE, or _XOPEN_SOURCE >= 500. + * + * __POSIX_VISIBLE >= 2 + * POSIX.2-1992; enabled by default, with _POSIX_C_SOURCE >= 2, + * or _XOPEN_SOURCE >= 500. + * + * __POSIX_VISIBLE >= 199309 + * POSIX.1b-1993; enabled by default, with _POSIX_C_SOURCE >= 199309L, + * or _XOPEN_SOURCE >= 500. + * + * __POSIX_VISIBLE >= 199506 + * POSIX.1c-1995; enabled by default, with _POSIX_C_SOURCE >= 199506L, + * or _XOPEN_SOURCE >= 500. + * + * __POSIX_VISIBLE >= 200112 + * POSIX.1-2001; enabled by default, with _POSIX_C_SOURCE >= 200112L, + * or _XOPEN_SOURCE >= 600. + * + * __POSIX_VISIBLE >= 200809 + * POSIX.1-2008; enabled by default, with _POSIX_C_SOURCE >= 200809L, + * or _XOPEN_SOURCE >= 700. + * + * __XSI_VISIBLE + * XPG4 XSI extensions; enabled with any version of _XOPEN_SOURCE. + * + * __XSI_VISIBLE >= 4 + * SUSv1 XSI extensions; enabled with both _XOPEN_SOURCE and + * _XOPEN_SOURCE_EXTENDED together. + * + * __XSI_VISIBLE >= 500 + * SUSv2 XSI extensions; enabled with _XOPEN_SOURCE >= 500. + * + * __XSI_VISIBLE >= 600 + * SUSv3 XSI extensions; enabled with _XOPEN_SOURCE >= 600. + * + * __XSI_VISIBLE >= 700 + * SUSv4 XSI extensions; enabled with _XOPEN_SOURCE >= 700. + * + * __ISO_C_VISIBLE >= 1999 + * ISO C99; enabled with gcc -std=c99 or newer (on by default since GCC 5), + * any version of C++, or with _ISOC99_SOURCE, _POSIX_C_SOURCE >= 200112L, + * or _XOPEN_SOURCE >= 600. + * + * __ISO_C_VISIBLE >= 2011 + * ISO C11; enabled with gcc -std=c11 or newer (on by default since GCC 5), + * g++ -std=c++11 or newer (on by default since GCC 6), or with + * _ISOC11_SOURCE. + * + * __ATFILE_VISIBLE + * "at" functions; enabled by default, with _ATFILE_SOURCE, + * _POSIX_C_SOURCE >= 200809L, or _XOPEN_SOURCE >= 700. + * + * __LARGEFILE_VISIBLE + * fseeko, ftello; enabled with _LARGEFILE_SOURCE or _XOPEN_SOURCE >= 500. + * + * __BSD_VISIBLE + * BSD extensions; enabled by default, or with _BSD_SOURCE. + * + * __SVID_VISIBLE + * SVr4 extensions; enabled by default, or with _SVID_SOURCE. + * + * __MISC_VISIBLE + * Extensions found in both BSD and SVr4 (shorthand for + * (__BSD_VISIBLE || __SVID_VISIBLE)), or newlib-specific + * extensions; enabled by default. + * + * __GNU_VISIBLE + * GNU extensions; enabled with _GNU_SOURCE. + * + * In all cases above, "enabled by default" means either by defining + * _DEFAULT_SOURCE, or by not defining any of the public feature test macros. + * Defining _GNU_SOURCE makes all of the above avaliable. + */ + +#ifdef _ATFILE_SOURCE +#define __ATFILE_VISIBLE 1 +#else +#define __ATFILE_VISIBLE 0 +#endif + +#ifdef _DEFAULT_SOURCE +#define __BSD_VISIBLE 1 +#else +#define __BSD_VISIBLE 0 +#endif + +#ifdef _GNU_SOURCE +#define __GNU_VISIBLE 1 +#else +#define __GNU_VISIBLE 0 +#endif + +#if defined(_ISOC11_SOURCE) || \ + (__STDC_VERSION__ - 0) >= 201112L || (__cplusplus - 0) >= 201103L +#define __ISO_C_VISIBLE 2011 +#elif defined(_ISOC99_SOURCE) || (_POSIX_C_SOURCE - 0) >= 200112L || \ + (__STDC_VERSION__ - 0) >= 199901L || defined(__cplusplus) +#define __ISO_C_VISIBLE 1999 +#else +#define __ISO_C_VISIBLE 1990 +#endif + +#if defined(_LARGEFILE_SOURCE) || (_XOPEN_SOURCE - 0) >= 500 +#define __LARGEFILE_VISIBLE 1 +#else +#define __LARGEFILE_VISIBLE 0 +#endif + +#ifdef _DEFAULT_SOURCE +#define __MISC_VISIBLE 1 +#else +#define __MISC_VISIBLE 0 +#endif + +#if (_POSIX_C_SOURCE - 0) >= 200809L +#define __POSIX_VISIBLE 200809 +#elif (_POSIX_C_SOURCE - 0) >= 200112L +#define __POSIX_VISIBLE 200112 +#elif (_POSIX_C_SOURCE - 0) >= 199506L +#define __POSIX_VISIBLE 199506 +#elif (_POSIX_C_SOURCE - 0) >= 199309L +#define __POSIX_VISIBLE 199309 +#elif (_POSIX_C_SOURCE - 0) >= 2 || defined(_XOPEN_SOURCE) +#define __POSIX_VISIBLE 199209 +#elif defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) +#define __POSIX_VISIBLE 199009 +#else +#define __POSIX_VISIBLE 0 +#endif + +#ifdef _DEFAULT_SOURCE +#define __SVID_VISIBLE 1 +#else +#define __SVID_VISIBLE 0 +#endif + +#if (_XOPEN_SOURCE - 0) >= 700 +#define __XSI_VISIBLE 700 +#elif (_XOPEN_SOURCE - 0) >= 600 +#define __XSI_VISIBLE 600 +#elif (_XOPEN_SOURCE - 0) >= 500 +#define __XSI_VISIBLE 500 +#elif defined(_XOPEN_SOURCE) && defined(_XOPEN_SOURCE_EXTENDED) +#define __XSI_VISIBLE 4 +#elif defined(_XOPEN_SOURCE) +#define __XSI_VISIBLE 1 +#else +#define __XSI_VISIBLE 0 +#endif + +/* RTEMS adheres to POSIX -- 1003.1b with some features from annexes. */ + +#ifdef __rtems__ +#define _POSIX_JOB_CONTROL 1 +#define _POSIX_SAVED_IDS 1 +#define _POSIX_VERSION 199309L +#define _POSIX_ASYNCHRONOUS_IO 1 +#define _POSIX_FSYNC 1 +#define _POSIX_MAPPED_FILES 1 +#define _POSIX_MEMLOCK 1 +#define _POSIX_MEMLOCK_RANGE 1 +#define _POSIX_MEMORY_PROTECTION 1 +#define _POSIX_MESSAGE_PASSING 1 +#define _POSIX_MONOTONIC_CLOCK 200112L +#define _POSIX_PRIORITIZED_IO 1 +#define _POSIX_PRIORITY_SCHEDULING 1 +#define _POSIX_REALTIME_SIGNALS 1 +#define _POSIX_SEMAPHORES 1 +/* #define _POSIX_SHARED_MEMORY_OBJECTS 1 */ +#define _POSIX_SYNCHRONIZED_IO 1 +#define _POSIX_TIMERS 1 +#define _POSIX_BARRIERS 200112L +#define _POSIX_READER_WRITER_LOCKS 200112L +#define _POSIX_SPIN_LOCKS 200112L + + +/* In P1003.1b but defined by drafts at least as early as P1003.1c/D10 */ +#define _POSIX_THREADS 1 +#define _POSIX_THREAD_ATTR_STACKADDR 1 +#define _POSIX_THREAD_ATTR_STACKSIZE 1 +#define _POSIX_THREAD_PRIORITY_SCHEDULING 1 +#define _POSIX_THREAD_PRIO_INHERIT 1 +#define _POSIX_THREAD_PRIO_PROTECT 1 +#define _POSIX_THREAD_PROCESS_SHARED 1 +#define _POSIX_THREAD_SAFE_FUNCTIONS 1 + +/* P1003.4b/D8 defines the constants below this comment. */ +#define _POSIX_SPAWN 1 +#define _POSIX_TIMEOUTS 1 +#define _POSIX_CPUTIME 1 +#define _POSIX_THREAD_CPUTIME 1 +#define _POSIX_SPORADIC_SERVER 1 +#define _POSIX_THREAD_SPORADIC_SERVER 1 +#define _POSIX_DEVICE_CONTROL 1 +#define _POSIX_DEVCTL_DIRECTION 1 +#define _POSIX_INTERRUPT_CONTROL 1 +#define _POSIX_ADVISORY_INFO 1 + +/* UNIX98 added some new pthread mutex attributes */ +#define _UNIX98_THREAD_MUTEX_ATTRIBUTES 1 + +#endif + +/* XMK loosely adheres to POSIX -- 1003.1 */ +#ifdef __XMK__ +#define _POSIX_THREADS 1 +#define _POSIX_THREAD_PRIORITY_SCHEDULING 1 +#endif + + +#ifdef __svr4__ +# define _POSIX_JOB_CONTROL 1 +# define _POSIX_SAVED_IDS 1 +# define _POSIX_VERSION 199009L +#endif + +#ifdef __CYGWIN__ + +#if __POSIX_VISIBLE >= 200809 +#define _POSIX_VERSION 200809L +#define _POSIX2_VERSION 200809L +#elif __POSIX_VISIBLE >= 200112 +#define _POSIX_VERSION 200112L +#define _POSIX2_VERSION 200112L +#elif __POSIX_VISIBLE >= 199506 +#define _POSIX_VERSION 199506L +#define _POSIX2_VERSION 199506L +#elif __POSIX_VISIBLE >= 199309 +#define _POSIX_VERSION 199309L +#define _POSIX2_VERSION 199209L +#elif __POSIX_VISIBLE >= 199209 +#define _POSIX_VERSION 199009L +#define _POSIX2_VERSION 199209L +#elif __POSIX_VISIBLE +#define _POSIX_VERSION 199009L +#endif +#if __XSI_VISIBLE >= 4 +#define _XOPEN_VERSION __XSI_VISIBLE +#endif + +#define _POSIX_ADVISORY_INFO 200809L +/* #define _POSIX_ASYNCHRONOUS_IO -1 */ +#define _POSIX_BARRIERS 200809L +#define _POSIX_CHOWN_RESTRICTED 1 +#define _POSIX_CLOCK_SELECTION 200809L +#define _POSIX_CPUTIME 200809L +#define _POSIX_FSYNC 200809L +#define _POSIX_IPV6 200809L +#define _POSIX_JOB_CONTROL 1 +#define _POSIX_MAPPED_FILES 200809L +/* #define _POSIX_MEMLOCK -1 */ +#define _POSIX_MEMLOCK_RANGE 200809L +#define _POSIX_MEMORY_PROTECTION 200809L +#define _POSIX_MESSAGE_PASSING 200809L +#define _POSIX_MONOTONIC_CLOCK 200809L +#define _POSIX_NO_TRUNC 1 +/* #define _POSIX_PRIORITIZED_IO -1 */ +#define _POSIX_PRIORITY_SCHEDULING 200809L +#define _POSIX_RAW_SOCKETS 200809L +#define _POSIX_READER_WRITER_LOCKS 200809L +#define _POSIX_REALTIME_SIGNALS 200809L +#define _POSIX_REGEXP 1 +#define _POSIX_SAVED_IDS 1 +#define _POSIX_SEMAPHORES 200809L +#define _POSIX_SHARED_MEMORY_OBJECTS 200809L +#define _POSIX_SHELL 1 +#define _POSIX_SPAWN 200809L +#define _POSIX_SPIN_LOCKS 200809L +/* #define _POSIX_SPORADIC_SERVER -1 */ +#define _POSIX_SYNCHRONIZED_IO 200809L +#define _POSIX_THREAD_ATTR_STACKADDR 200809L +#define _POSIX_THREAD_ATTR_STACKSIZE 200809L +#define _POSIX_THREAD_CPUTIME 200809L +/* #define _POSIX_THREAD_PRIO_INHERIT -1 */ +/* #define _POSIX_THREAD_PRIO_PROTECT -1 */ +#define _POSIX_THREAD_PRIORITY_SCHEDULING 200809L +#define _POSIX_THREAD_PROCESS_SHARED 200809L +#define _POSIX_THREAD_SAFE_FUNCTIONS 200809L +/* #define _POSIX_THREAD_SPORADIC_SERVER -1 */ +#define _POSIX_THREADS 200809L +/* #define _POSIX_TIMEOUTS -1 */ +#define _POSIX_TIMERS 200809L +/* #define _POSIX_TRACE -1 */ +/* #define _POSIX_TRACE_EVENT_FILTER -1 */ +/* #define _POSIX_TRACE_INHERIT -1 */ +/* #define _POSIX_TRACE_LOG -1 */ +/* #define _POSIX_TYPED_MEMORY_OBJECTS -1 */ +#define _POSIX_VDISABLE '\0' + +#if __POSIX_VISIBLE >= 2 +#define _POSIX2_C_VERSION _POSIX2_VERSION +#define _POSIX2_C_BIND _POSIX2_VERSION +#define _POSIX2_C_DEV _POSIX2_VERSION +#define _POSIX2_CHAR_TERM _POSIX2_VERSION +/* #define _POSIX2_FORT_DEV -1 */ +/* #define _POSIX2_FORT_RUN -1 */ +/* #define _POSIX2_LOCALEDEF -1 */ +/* #define _POSIX2_PBS -1 */ +/* #define _POSIX2_PBS_ACCOUNTING -1 */ +/* #define _POSIX2_PBS_CHECKPOINT -1 */ +/* #define _POSIX2_PBS_LOCATE -1 */ +/* #define _POSIX2_PBS_MESSAGE -1 */ +/* #define _POSIX2_PBS_TRACK -1 */ +#define _POSIX2_SW_DEV _POSIX2_VERSION +#define _POSIX2_UPE _POSIX2_VERSION +#endif /* __POSIX_VISIBLE >= 2 */ + +#define _POSIX_V6_ILP32_OFF32 -1 +#ifdef __LP64__ +#define _POSIX_V6_ILP32_OFFBIG -1 +#define _POSIX_V6_LP64_OFF64 1 +#define _POSIX_V6_LPBIG_OFFBIG 1 +#else +#define _POSIX_V6_ILP32_OFFBIG 1 +#define _POSIX_V6_LP64_OFF64 -1 +#define _POSIX_V6_LPBIG_OFFBIG -1 +#endif +#define _POSIX_V7_ILP32_OFF32 _POSIX_V6_ILP32_OFF32 +#define _POSIX_V7_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG +#define _POSIX_V7_LP64_OFF64 _POSIX_V6_LP64_OFF64 +#define _POSIX_V7_LPBIG_OFFBIG _POSIX_V6_LPBIG_OFFBIG +#define _XBS5_ILP32_OFF32 _POSIX_V6_ILP32_OFF32 +#define _XBS5_ILP32_OFFBIG _POSIX_V6_ILP32_OFFBIG +#define _XBS5_LP64_OFF64 _POSIX_V6_LP64_OFF64 +#define _XBS5_LPBIG_OFFBIG _POSIX_V6_LPBIG_OFFBIG + +#if __XSI_VISIBLE +#define _XOPEN_CRYPT 1 +#define _XOPEN_ENH_I18N 1 +/* #define _XOPEN_LEGACY -1 */ +/* #define _XOPEN_REALTIME -1 */ +/* #define _XOPEN_REALTIME_THREADS -1 */ +#define _XOPEN_SHM 1 +/* #define _XOPEN_STREAMS -1 */ +/* #define _XOPEN_UNIX -1 */ +#endif /* __XSI_VISIBLE */ + +/* The value corresponds to UNICODE version 4.0, which is the version + supported by XP. Newlib supports 5.2 (2011) but so far Cygwin needs + the MS conversions for double-byte charsets. */ +#define __STDC_ISO_10646__ 200305L + +#endif /* __CYGWIN__ */ + +#ifdef __cplusplus +} +#endif +#endif /* _SYS_FEATURES_H */