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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/experimental_section_vars/nrf_section.h')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/experimental_section_vars/nrf_section.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/experimental_section_vars/nrf_section.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/experimental_section_vars/nrf_section.h new file mode 100644 index 0000000..62eda64 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/experimental_section_vars/nrf_section.h @@ -0,0 +1,191 @@ +/** + * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA + * + * 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, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, 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 Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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 NRF_SECTION_H__ +#define NRF_SECTION_H__ + +#include "nordic_common.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup section_vars Section variables + * @ingroup app_common + * @{ + * + * @brief Section variables. + */ + +//lint -save -e27 -esym(526,*) + +#if defined(__ICCARM__) +// Enable IAR language extensions +#pragma language=extended +#endif + +/**@brief Macro for obtaining the address of the beginning of a section. + * + * param[in] section_name Name of the section. + * @hideinitializer + */ +#if defined(__CC_ARM) +#define NRF_SECTION_START_ADDR(section_name) &CONCAT_2(section_name, $$Base) + +#elif defined(__GNUC__) +#define NRF_SECTION_START_ADDR(section_name) &CONCAT_2(__start_, section_name) + +#elif defined(__ICCARM__) +#define NRF_SECTION_START_ADDR(section_name) __section_begin(STRINGIFY(section_name)) +#endif + + +/**@brief Macro for obtaining the address of the end of a section. + * + * @param[in] section_name Name of the section. + * @hideinitializer + */ +#if defined(__CC_ARM) +#define NRF_SECTION_END_ADDR(section_name) &CONCAT_2(section_name, $$Limit) + +#elif defined(__GNUC__) +#define NRF_SECTION_END_ADDR(section_name) &CONCAT_2(__stop_, section_name) + +#elif defined(__ICCARM__) +#define NRF_SECTION_END_ADDR(section_name) __section_end(STRINGIFY(section_name)) +#endif + + +/**@brief Macro for retrieving the length of a given section, in bytes. + * + * @param[in] section_name Name of the section. + * @hideinitializer + */ +#define NRF_SECTION_LENGTH(section_name) \ + ((size_t)NRF_SECTION_END_ADDR(section_name) - \ + (size_t)NRF_SECTION_START_ADDR(section_name)) + + +/**@brief Macro for creating a section. + * + * @param[in] section_name Name of the section. + * @param[in] data_type Data type of the variables to be registered in the section. + * + * @warning Data type must be word aligned to prevent padding. + * @hideinitializer + */ +#if defined(__CC_ARM) +#define NRF_SECTION_DEF(section_name, data_type) \ + extern data_type * CONCAT_2(section_name, $$Base); \ + extern void * CONCAT_2(section_name, $$Limit) + +#elif defined(__GNUC__) +#define NRF_SECTION_DEF(section_name, data_type) \ + extern data_type * CONCAT_2(__start_, section_name); \ + extern void * CONCAT_2(__stop_, section_name) + +#elif defined(__ICCARM__) +#define NRF_SECTION_DEF(section_name, data_type) \ + _Pragma(STRINGIFY(section = STRINGIFY(section_name))); + +#endif + + +/**@brief Macro for declaring a variable and registering it in a section. + * + * @details Declares a variable and registers it in a named section. This macro ensures that the + * variable is not stripped away when using optimizations. + * + * @note The order in which variables are placed in a section is dependent on the order in + * which the linker script encounters the variables during linking. + * + * @param[in] section_name Name of the section. + * @param[in] section_var Variable to register in the given section. + * @hideinitializer + */ +#if defined(__CC_ARM) +#define NRF_SECTION_ITEM_REGISTER(section_name, section_var) \ + section_var __attribute__ ((section(STRINGIFY(section_name)))) __attribute__((used)) + +#elif defined(__GNUC__) +#define NRF_SECTION_ITEM_REGISTER(section_name, section_var) \ + section_var __attribute__ ((section("." STRINGIFY(section_name)))) __attribute__((used)) + +#elif defined(__ICCARM__) +#define NRF_SECTION_ITEM_REGISTER(section_name, section_var) \ + __root section_var @ STRINGIFY(section_name) +#endif + + +/**@brief Macro for retrieving a variable from a section. + * + * @warning The stored symbol can only be resolved using this macro if the + * type of the data is word aligned. The operation of acquiring + * the stored symbol relies on the size of the stored type. No + * padding can exist in the named section in between individual + * stored items or this macro will fail. + * + * @param[in] section_name Name of the section. + * @param[in] data_type Data type of the variable. + * @param[in] i Index of the variable in section. + * @hideinitializer + */ +#define NRF_SECTION_ITEM_GET(section_name, data_type, i) \ + ((data_type*)NRF_SECTION_START_ADDR(section_name) + (i)) + + +/**@brief Macro for getting the number of variables in a section. + * + * @param[in] section_name Name of the section. + * @param[in] data_type Data type of the variables in the section. + * @hideinitializer + */ +#define NRF_SECTION_ITEM_COUNT(section_name, data_type) \ + NRF_SECTION_LENGTH(section_name) / sizeof(data_type) + +/** @} */ + +//lint -restore + +#ifdef __cplusplus +} +#endif + +#endif // NRF_SECTION_H__ |