test_asm_inline_gcc.h

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/* GCC specific test inline assembler functions and macros */
 
/*
 * Copyright (c) 2015, Wind River Systems, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef _TEST_ASM_INLINE_GCC_H
#define _TEST_ASM_INLINE_GCC_H
 
#include <zephyr/sys/barrier.h>
 
#if !defined(__GNUC__)
#error test_asm_inline_gcc.h goes only with GCC
#endif
 
#if defined(CONFIG_X86)
static inline void timestamp_serialize(void)
{
        __asm__ __volatile__ (/* serialize */
        "xorl %%eax,%%eax;\n\t"
        "cpuid;\n\t"
        :
        :
        : "%eax", "%ebx", "%ecx", "%edx");
}
#elif defined(CONFIG_CPU_CORTEX_M) || \
        defined(CONFIG_CPU_AARCH32_CORTEX_R) || \
        defined(CONFIG_CPU_AARCH32_CORTEX_A) || \
        defined(CONFIG_CPU_CORTEX_A) || \
        defined(CONFIG_CPU_AARCH64_CORTEX_R)
static inline void timestamp_serialize(void)
{
        barrier_isync_fence_full();
}
#elif defined(CONFIG_ARC)
#define timestamp_serialize()
#elif defined(CONFIG_ARCH_POSIX)
#define timestamp_serialize()
#elif defined(CONFIG_XTENSA)
#define timestamp_serialize()
#elif defined(CONFIG_RISCV)
#define timestamp_serialize()
#elif defined(CONFIG_SPARC)
#define timestamp_serialize()
#elif defined(CONFIG_MIPS)
#define timestamp_serialize()
#elif defined(CONFIG_RX)
#define timestamp_serialize()
#else
#error implementation of timestamp_serialize() not provided for your CPU target
#endif
 
#endif /* _TEST_ASM_INLINE_GCC_H */