xcc.h

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/*
 * Copyright (c) 2017 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_XCC_H_
#define ZEPHYR_INCLUDE_TOOLCHAIN_XCC_H_
 
#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_H_
#error Please do not include toolchain-specific headers directly, use <zephyr/toolchain.h> instead
#endif
 
/*
 * XCC does not support using deprecated attribute in enum,
 * so just nullify it here to avoid compilation errors.
 */
#ifndef __deprecated
#define __deprecated
#endif
 
#define __in_section_unique(seg) \
        __attribute__((section("." STRINGIFY(seg) "." STRINGIFY(__COUNTER__))))
 
#define __in_section_unique_named(seg, name) \
        __attribute__((section("." STRINGIFY(seg) \
                               "." STRINGIFY(__COUNTER__) \
                               "." STRINGIFY(name))))
 
/* toolchain/gcc.h errors out if __BYTE_ORDER__ cannot be determined
 * there. However, __BYTE_ORDER__ is actually being defined later in
 * this file. So define __BYTE_ORDER__ to skip the check in gcc.h
 * and undefine after including gcc.h.
 *
 * Clang has it defined so there is no need to work around.
 */
#ifndef __clang__
#define __BYTE_ORDER__
#endif
 
#ifdef __clang__
#include <zephyr/toolchain/llvm.h>
#else
#include <zephyr/toolchain/gcc.h>
/* Cadence/Tensilica XCC pragma unroll support is unknown. */
#undef TOOLCHAIN_PRAGMA_UNROLL
#endif
 
#ifdef __clang__
/* For some reasons, xt-clang does not like "%hhd" or "%hd" (for example)
 * being fed int data (same goes for unsigned ones) and will always complain
 * about mismatched types. GCC and newer LLVM/Clang do not complain.
 * This could be due to xt-clang being based on older LLVM/Clang.
 * So skip the check.
 */
#ifdef __printf_like
#undef __printf_like
#define __printf_like(f, a)
#endif
#endif
 
#ifndef __clang__
#undef __BYTE_ORDER__
#endif
 
#include <stdbool.h>
 
#ifndef __INT8_C
#define __INT8_C(x)     x
#endif
 
#ifndef INT8_C
#define INT8_C(x)       __INT8_C(x)
#endif
 
#ifndef __UINT8_C
#define __UINT8_C(x)    x ## U
#endif
 
#ifndef UINT8_C
#define UINT8_C(x)      __UINT8_C(x)
#endif
 
#ifndef __INT16_C
#define __INT16_C(x)    x
#endif
 
#ifndef INT16_C
#define INT16_C(x)      __INT16_C(x)
#endif
 
#ifndef __UINT16_C
#define __UINT16_C(x)   x ## U
#endif
 
#ifndef UINT16_C
#define UINT16_C(x)     __UINT16_C(x)
#endif
 
#ifndef __INT32_C
#define __INT32_C(x)    x
#endif
 
#ifndef INT32_C
#define INT32_C(x)      __INT32_C(x)
#endif
 
#ifndef __UINT32_C
#define __UINT32_C(x)   x ## U
#endif
 
#ifndef UINT32_C
#define UINT32_C(x)     __UINT32_C(x)
#endif
 
#ifndef __INT64_C
#define __INT64_C(x)    x
#endif
 
#ifndef INT64_C
#define INT64_C(x)      __INT64_C(x)
#endif
 
#ifndef __UINT64_C
#define __UINT64_C(x)   x ## ULL
#endif
 
#ifndef UINT64_C
#define UINT64_C(x)     __UINT64_C(x)
#endif
 
#ifndef __INTMAX_C
#define __INTMAX_C(x)   x
#endif
 
#ifndef INTMAX_C
#define INTMAX_C(x)     __INTMAX_C(x)
#endif
 
#ifndef __UINTMAX_C
#define __UINTMAX_C(x)  x ## ULL
#endif
 
#ifndef UINTMAX_C
#define UINTMAX_C(x)    __UINTMAX_C(x)
#endif
 
#ifndef __COUNTER__
/* XCC (GCC-based compiler) doesn't support __COUNTER__
 * but this should be good enough
 */
#define __COUNTER__ __LINE__
#endif
 
#ifndef __GCC_LINKER_CMD__
#include <xtensa/config/core.h>
 
/*
 * XCC does not define the following macros with the expected names, but the
 * HAL defines similar ones. Thus we include it and define the missing macros
 * ourselves.
 */
#if XCHAL_MEMORY_ORDER == XTHAL_BIGENDIAN
#define __BYTE_ORDER__          __ORDER_BIG_ENDIAN__
#elif XCHAL_MEMORY_ORDER == XTHAL_LITTLEENDIAN
#define __BYTE_ORDER__          __ORDER_LITTLE_ENDIAN__
#else
#error "Cannot determine __BYTE_ORDER__"
#endif
 
#endif /* __GCC_LINKER_CMD__ */
 
#define __builtin_unreachable() __builtin_trap()
 
/* Not a full barrier, just a SW barrier */
#define __sync_synchronize() do { __asm__ __volatile__ ("" ::: "memory"); } \
        while (false)
 
#endif