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openharmony_kernel_liteos_m/utils/los_compiler.h

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/*
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020-2023 Huawei Device Co., Ltd. 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.
*
* 3. Neither the name of the copyright holder 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 COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
*/
#ifndef _LOS_COMPILER_H
#define _LOS_COMPILER_H
/* for IAR Compiler */
#ifdef __ICCARM__
#include "iccarm_builtin.h"
#endif
#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */
/* for IAR Compiler */
#ifdef __ICCARM__
#ifndef ASM
#define ASM __asm
#endif
#ifndef INLINE
#define INLINE inline
#endif
#ifndef STATIC_INLINE
#define STATIC_INLINE static inline
#endif
#ifndef USED
#define USED __root
#endif
#ifndef WEAK
#define WEAK __weak
#endif
#ifndef CLZ
#define CLZ __iar_builtin_CLZ
#endif
#ifndef NORETURN
#define NORETURN __attribute__ ((__noreturn__))
#endif
#ifndef UNREACHABLE
#define UNREACHABLE while (1)
#endif
/* for ARM Compiler */
#elif defined(__CC_ARM)
#ifndef ASM
#define ASM __asm
#endif
#ifndef INLINE
#define INLINE __inline
#endif
#ifndef STATIC_INLINE
#define STATIC_INLINE static __inline
#endif
#ifndef USED
#define USED __attribute__((used))
#endif
#ifndef WEAK
#define WEAK __attribute__((weak))
#endif
#ifndef CLZ
#define CLZ __clz
#endif
#ifndef NORETURN
#define NORETURN __declspec(noreturn)
#endif
#ifndef UNREACHABLE
#define UNREACHABLE while (1)
#endif
#pragma anon_unions
/* for GNU Compiler */
#elif defined(__GNUC__)
#ifndef ASM
#define ASM __asm
#endif
#ifndef INLINE
#define INLINE inline
#endif
#ifndef STATIC_INLINE
#define STATIC_INLINE static inline
#endif
#ifndef USED
#define USED __attribute__((used))
#endif
#ifndef WEAK
#define WEAK __attribute__((weak))
#endif
#ifndef CLZ
#define CLZ __builtin_clz
#endif
#ifndef NORETURN
#define NORETURN __attribute__ ((__noreturn__))
#endif
#ifndef UNREACHABLE
#define UNREACHABLE __builtin_unreachable()
#endif
#else
#error Unknown compiler.
#endif
#ifndef STATIC
#define STATIC static
#endif
/**
* @ingroup los_builddef
* Define inline keyword
*/
#ifndef INLINE
#define INLINE static inline
#endif
/**
* @ingroup los_builddef
* Little endian
*/
#define OS_LITTLE_ENDIAN 0x1234
/**
* @ingroup los_builddef
* Big endian
*/
#define OS_BIG_ENDIAN 0x4321
/**
* @ingroup los_builddef
* Byte order
*/
#ifndef OS_BYTE_ORDER
#define OS_BYTE_ORDER OS_LITTLE_ENDIAN
#endif
/* Define OS code data sections */
/* The indicator function is inline */
/**
* @ingroup los_builddef
* Allow inline sections
*/
#ifndef LITE_OS_SEC_ALW_INLINE
#define LITE_OS_SEC_ALW_INLINE // __attribute__((always_inline))
#endif
/**
* @ingroup los_builddef
* Vector table section
*/
#ifndef LITE_OS_SEC_VEC
#define LITE_OS_SEC_VEC __attribute__ ((section(".vector")))
#endif
/**
* @ingroup los_builddef
* .Text section (Code section)
*/
#ifndef LITE_OS_SEC_TEXT
#define LITE_OS_SEC_TEXT // __attribute__((section(".sram.text")))
#endif
/**
* @ingroup los_builddef
* .Text.ddr section
*/
#ifndef LITE_OS_SEC_TEXT_MINOR
#define LITE_OS_SEC_TEXT_MINOR // __attribute__((section(".dyn.text")))
#endif
/**
* @ingroup los_builddef
* .Text.init section
*/
#ifndef LITE_OS_SEC_TEXT_INIT
#define LITE_OS_SEC_TEXT_INIT // __attribute__((section(".dyn.text")))
#endif
/**
* @ingroup los_builddef
* .Data section
*/
#ifndef LITE_OS_SEC_DATA
#define LITE_OS_SEC_DATA // __attribute__((section(".dyn.data")))
#endif
/**
* @ingroup los_builddef
* .Data.init section
*/
#ifndef LITE_OS_SEC_DATA_INIT
#define LITE_OS_SEC_DATA_INIT // __attribute__((section(".dyn.data")))
#endif
/**
* @ingroup los_builddef
* Not initialized variable section
*/
#ifndef LITE_OS_SEC_BSS
#define LITE_OS_SEC_BSS // __attribute__((section(".sym.bss")))
#endif
/**
* @ingroup los_builddef
* .bss.ddr section
*/
#ifndef LITE_OS_SEC_BSS_MINOR
#define LITE_OS_SEC_BSS_MINOR
#endif
/**
* @ingroup los_builddef
* .bss.init sections
*/
#ifndef LITE_OS_SEC_BSS_INIT
#define LITE_OS_SEC_BSS_INIT
#endif
#ifndef LITE_OS_SEC_TEXT_DATA
#define LITE_OS_SEC_TEXT_DATA // __attribute__((section(".dyn.data")))
#define LITE_OS_SEC_TEXT_BSS // __attribute__((section(".dyn.bss")))
#define LITE_OS_SEC_TEXT_RODATA // __attribute__((section(".dyn.rodata")))
#endif
#ifndef LITE_OS_SEC_SYMDATA
#define LITE_OS_SEC_SYMDATA // __attribute__((section(".sym.data")))
#endif
#ifndef LITE_OS_SEC_SYMBSS
#define LITE_OS_SEC_SYMBSS // __attribute__((section(".sym.bss")))
#endif
#ifndef LITE_OS_SEC_KEEP_DATA_DDR
#define LITE_OS_SEC_KEEP_DATA_DDR // __attribute__((section(".keep.data.ddr")))
#endif
#ifndef LITE_OS_SEC_KEEP_TEXT_DDR
#define LITE_OS_SEC_KEEP_TEXT_DDR // __attribute__((section(".keep.text.ddr")))
#endif
#ifndef LITE_OS_SEC_KEEP_DATA_SRAM
#define LITE_OS_SEC_KEEP_DATA_SRAM // __attribute__((section(".keep.data.sram")))
#endif
#ifndef LITE_OS_SEC_KEEP_TEXT_SRAM
#define LITE_OS_SEC_KEEP_TEXT_SRAM // __attribute__((section(".keep.text.sram")))
#endif
#ifndef LITE_OS_SEC_BSS_MINOR
#define LITE_OS_SEC_BSS_MINOR
#endif
/* type definitions */
typedef unsigned char UINT8;
typedef unsigned short UINT16;
typedef unsigned int UINT32;
typedef signed char INT8;
typedef signed short INT16;
typedef signed int INT32;
typedef float FLOAT;
typedef double DOUBLE;
typedef char CHAR;
typedef unsigned long long UINT64;
typedef signed long long INT64;
typedef unsigned int UINTPTR;
typedef signed int INTPTR;
typedef volatile INT32 Atomic;
typedef volatile INT64 Atomic64;
#ifndef DEFINED_BOOL
typedef unsigned int BOOL;
#define DEFINED_BOOL
#endif
#ifndef VOID
#define VOID void
#endif
#ifndef FALSE
#define FALSE ((BOOL)0)
#endif
#ifndef TRUE
#define TRUE ((BOOL)1)
#endif
#ifndef NULL
#ifdef __cplusplus
#define NULL 0L
#else
#define NULL ((void*)0)
#endif
#endif
#define OS_NULL_BYTE ((UINT8)0xFF)
#define OS_NULL_SHORT ((UINT16)0xFFFF)
#define OS_NULL_INT ((UINT32)0xFFFFFFFF)
#ifndef LOS_OK
#define LOS_OK 0U
#endif
#ifndef LOS_NOK
#define LOS_NOK (UINT32)(-1)
#endif
#define OS_FAIL 1
#define OS_ERROR (UINT32)(-1)
#define OS_INVALID (UINT32)(-1)
#define OS_64BIT_MAX (0xFFFFFFFFFFFFFFFFULL)
#define asm __asm
#ifdef typeof
#undef typeof
#endif
#define typeof __typeof__
#define SIZE(a) (a)
#define LOS_ASSERT_COND(expression)
/**
* @ingroup los_base
* Align the beginning of the object with the base address addr,
* with boundary bytes being the smallest unit of alignment.
*/
#ifndef ALIGN
#define ALIGN(addr, boundary) LOS_Align(addr, boundary)
#endif
/**
* @ingroup los_base
* Align the tail of the object with the base address addr, with size bytes being the smallest unit of alignment.
*/
#define TRUNCATE(addr, size) ((addr) & ~((size) - 1))
/**
* @ingroup los_base
* @brief Align the value (addr) by some bytes (boundary) you specify.
*
* @par Description:
* This API is used to align the value (addr) by some bytes (boundary) you specify.
*
* @attention
* <ul>
* <li>the value of boundary usually is 4,8,16,32.</li>
* </ul>
*
* @param addr [IN] The variable what you want to align.
* @param boundary [IN] The align size what you want to align.
*
* @retval #UINT32 The variable what have been aligned.
* @par Dependency:
* <ul><li>los_base.h: the header file that contains the API declaration.</li></ul>
* @see
*/
static inline UINT32 LOS_Align(UINT32 addr, UINT32 boundary)
{
return (addr + (((addr + (boundary - 1)) > addr) ? (boundary - 1) : 0)) & ~(boundary - 1);
}
#define OS_GOTO_ERREND() \
do { \
goto LOS_ERREND; \
} while (0)
#ifndef UNUSED
#define UNUSED(X) (void)X
#endif
#if defined(__GNUC__)
#ifndef __XTENSA_LX6__
static inline void maybe_release_fence(int model)
{
switch (model) {
case __ATOMIC_RELEASE:
__atomic_thread_fence (__ATOMIC_RELEASE);
break;
case __ATOMIC_ACQ_REL:
__atomic_thread_fence (__ATOMIC_ACQ_REL);
break;
case __ATOMIC_SEQ_CST:
__atomic_thread_fence (__ATOMIC_SEQ_CST);
break;
default:
break;
}
}
static inline void maybe_acquire_fence(int model)
{
switch (model) {
case __ATOMIC_ACQUIRE:
__atomic_thread_fence (__ATOMIC_ACQUIRE);
break;
case __ATOMIC_ACQ_REL:
__atomic_thread_fence (__ATOMIC_ACQ_REL);
break;
case __ATOMIC_SEQ_CST:
__atomic_thread_fence (__ATOMIC_SEQ_CST);
break;
default:
break;
}
}
#define __LIBATOMIC_N_LOCKS (1 << 4) /* 4, 1<<4 locks num */
static inline BOOL *__libatomic_flag_for_address(void *addr)
{
static BOOL flag_table[__LIBATOMIC_N_LOCKS] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
UINTPTR p = (UINTPTR)(UINTPTR *)addr;
p += (p >> 2) + (p << 4); /* 2, 4, hash data */
p += (p >> 7) + (p << 5); /* 7, 5, hash data */
p += (p >> 17) + (p << 13); /* 17, 13, hash data */
if (sizeof(void *) > 4) { /* 4, sizeof int in 32bit system */
p += (p >> 31); /* 31, for hash high bits data */
}
p &= (__LIBATOMIC_N_LOCKS - 1);
return flag_table + p;
}
static inline void get_lock(void *addr, int model)
{
BOOL *lock_ptr = __libatomic_flag_for_address (addr);
maybe_release_fence (model);
while (__atomic_test_and_set (lock_ptr, __ATOMIC_ACQUIRE) == 1) {
;
}
}
static inline void free_lock(void *addr, int model)
{
BOOL *lock_ptr = __libatomic_flag_for_address (addr);
__atomic_clear (lock_ptr, __ATOMIC_RELEASE);
maybe_acquire_fence (model);
}
static inline UINT64 __atomic_load_8(const volatile void *mem, int model)
{
UINT64 ret;
void *memP = (void *)mem;
get_lock (memP, model);
ret = *(UINT64 *)mem;
free_lock (memP, model);
return ret;
}
static inline void __atomic_store_8(volatile void *mem, UINT64 val, int model)
{
void *memP = (void *)mem;
get_lock (memP, model);
*(UINT64 *)mem = val;
free_lock (memP, model);
}
static inline UINT64 __atomic_exchange_8(volatile void *mem, UINT64 val, int model)
{
UINT64 ret;
void *memP = (void *)mem;
get_lock (memP, model);
ret = *(UINT64 *)mem;
*(UINT64 *)mem = val;
free_lock (memP, model);
return ret;
}
#endif /* __XTENSA_LX6__ */
#define ALIAS_OF(of) __attribute__((alias(#of)))
#define FUNC_ALIAS(real_func, new_alias, args_list, return_type) \
return_type new_alias args_list ALIAS_OF(real_func)
#else
#define FUNC_ALIAS(real_func, new_alias, args_list, return_type)
#endif /* __GNUC__ */
#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */
#endif /* _LOS_COMPILER_H */
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