我使用的源代码：

/// \file

/**
 * @brief   Obtains the current time tick of the OS.
 *          This is a weak function and is intended to be overridden.
 * @return  In the weak version always 0. Otherwise should return the current
 *          OS time tick.
 */
__attribute__((__weak__)) osalUint_t osal_tickGetCurrent(void)
{
    return 0;
}

作为doxygen设置文件（Doxyfile）：

QUIET = YES
ENABLE_PREPROCESSING   = YES
MACRO_EXPANSION        = YES
PREDEFINED             = __attribute__(x)=

其结果是：