Diff: TARGET_NRF51_DK/TOOLCHAIN_IAR/section_vars.h

Revision:

171:3a7713b1edbc

Parent:

169:a7c7b631e539

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_NRF51_DK/TOOLCHAIN_IAR/section_vars.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,290 @@
+/* 
+ * Copyright (c) 2016 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 or object form under this license must not be reverse 
+ *      engineered, decompiled, modified and/or disassembled. 
+ * 
+ * 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 SECTION_VARS_H__
+#define SECTION_VARS_H__
+
+
+/**
+ * @defgroup section_vars Section variables
+ * @ingroup app_common
+ * @{
+ *
+ * @brief Section variables.
+ */
+
+#if defined(__ICCARM__)
+// Enable IAR language extensions
+#pragma language=extended
+#endif
+
+
+// Macro to delay macro expansion.
+#define NRF_PRAGMA(x)       _Pragma(#x)
+
+
+/**@brief   Macro to register a named section.
+ *
+ * @param[in]   section_name    Name of the section to register.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+// Not required by this compiler.
+#define NRF_SECTION_VARS_REGISTER_SECTION(section_name)
+
+#elif defined(__GNUC__)
+
+// Not required by this compiler.
+#define NRF_SECTION_VARS_REGISTER_SECTION(section_name)
+
+#elif defined(__ICCARM__)
+
+#define NRF_SECTION_VARS_REGISTER_SECTION(section_name)     NRF_PRAGMA(section = #section_name)
+
+#endif
+
+
+/*lint -save -e27 */
+
+/**@brief   Macro to obtain the linker symbol for the beginning of a given section.
+ *
+ * @details The symbol that this macro resolves to is used to obtain a section start address.
+ *
+ * @param[in]   section_name    Name of the section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+#define NRF_SECTION_VARS_START_SYMBOL(section_name)         section_name ## $$Base
+
+#elif defined(__GNUC__)
+
+#define NRF_SECTION_VARS_START_SYMBOL(section_name)         __start_ ## section_name
+
+#elif defined(__ICCARM__)
+
+#define NRF_SECTION_VARS_START_SYMBOL(section_name)         __section_begin(#section_name)
+
+#endif
+
+
+/**@brief   Macro to obtain the linker symbol for the end of a given section.
+ *
+ * @details The symbol that this macro resolves to is used to obtain a section end address.
+ *
+ * @param[in]   section_name    Name of the section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+#define NRF_SECTION_VARS_END_SYMBOL(section_name)           section_name ## $$Limit
+
+#elif defined(__GNUC__)
+
+#define NRF_SECTION_VARS_END_SYMBOL(section_name)           __stop_ ## section_name
+
+#elif defined(__ICCARM__)
+
+#define NRF_SECTION_VARS_END_SYMBOL(section_name)           __section_end(#section_name)
+
+#endif
+
+/*lint -restore */
+
+
+/**@brief   Macro for retrieving the length of a given section, in bytes.
+ *
+ * @param[in]   section_name    Name of the section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+#define NRF_SECTION_VARS_LENGTH(section_name) \
+    ((uint32_t)&NRF_SECTION_VARS_END_SYMBOL(section_name) - (uint32_t)&NRF_SECTION_VARS_START_SYMBOL(section_name))
+
+#elif defined(__GNUC__)
+
+ #define NRF_SECTION_VARS_LENGTH(section_name) \
+    ((uint32_t)&NRF_SECTION_VARS_END_SYMBOL(section_name) - (uint32_t)&NRF_SECTION_VARS_START_SYMBOL(section_name))
+
+#elif defined(__ICCARM__)
+
+ #define NRF_SECTION_VARS_LENGTH(section_name) \
+    ((uint32_t)NRF_SECTION_VARS_END_SYMBOL(section_name) - (uint32_t)NRF_SECTION_VARS_START_SYMBOL(section_name))
+
+#endif
+      
+
+/**@brief   Macro to obtain the start address of a named section.
+ *
+ * param[in]    section_name    Name of the section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+#define NRF_SECTION_VARS_START_ADDR(section_name)       (uint32_t)&NRF_SECTION_VARS_START_SYMBOL(section_name)
+
+#elif defined(__GNUC__)
+
+#define NRF_SECTION_VARS_START_ADDR(section_name)       (uint32_t)&NRF_SECTION_VARS_START_SYMBOL(section_name)
+
+#elif defined(__ICCARM__)
+
+#define NRF_SECTION_VARS_START_ADDR(section_name)       (uint32_t)iar_ ## section_name ## _start
+
+#endif
+
+      
+/*@brief    Macro to obtain the end address of a named section.
+ *
+ * @param[in]   section_name    Name of the section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+#define NRF_SECTION_VARS_END_ADDR(section_name)         (uint32_t)&NRF_SECTION_VARS_END_SYMBOL(section_name)
+
+#elif defined(__GNUC__)
+
+#define NRF_SECTION_VARS_END_ADDR(section_name)         (uint32_t)&NRF_SECTION_VARS_END_SYMBOL(section_name)
+
+#elif defined(__ICCARM__)
+
+#define NRF_SECTION_VARS_END_ADDR(section_name)         (uint32_t)iar_ ## section_name ## _end
+
+#endif
+
+
+/**@brief   Macro to extern a named section start and stop symbols.
+ *
+ * @note    These declarations are required for GCC and Keil linkers (but not for IAR's).
+ *
+ * @param[in]   type_name       Name of the type stored in the section.
+ * @param[in]   section_name    Name of the section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+#define NRF_SECTION_VARS_REGISTER_SYMBOLS(type_name, section_name)  \
+    extern type_name * NRF_SECTION_VARS_START_SYMBOL(section_name); \
+    extern void      * NRF_SECTION_VARS_END_SYMBOL(section_name)
+
+#elif defined(__GNUC__)
+
+#define NRF_SECTION_VARS_REGISTER_SYMBOLS(type_name, section_name)  \
+    extern type_name * NRF_SECTION_VARS_START_SYMBOL(section_name); \
+    extern void      * NRF_SECTION_VARS_END_SYMBOL(section_name)
+
+#elif defined(__ICCARM__)
+
+// No symbol registration required for IAR.
+#define NRF_SECTION_VARS_REGISTER_SYMBOLS(type_name, section_name)                  \
+    extern void * iar_ ## section_name ## _start = __section_begin(#section_name);  \
+    extern void * iar_ ## section_name ## _end   = __section_end(#section_name)
+
+#endif
+
+
+/**@brief   Macro to declare a variable to be placed in a named section.
+ *
+ * @details Declares a variable to be placed in a named section. This macro ensures that its symbol
+ *          is not stripped by the linker because of optimizations.
+ *
+ * @warning The order with which variables are placed in a section is implementation dependant.
+ *          Generally, variables are placed in a section depending on the order with which they
+ *          are found by the linker.
+ *
+ * @warning The symbols added in the named section must be word aligned to prevent padding.
+ *
+ * @param[in]   section_name    Name of the section.
+ * @param[in]   type_def        Datatype of the variable to place in the given section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+    
+#define NRF_SECTION_VARS_ADD(section_name, type_def) \
+    static type_def __attribute__ ((section(#section_name))) __attribute__((used))
+
+#elif defined(__GNUC__)
+
+#define NRF_SECTION_VARS_ADD(section_name, type_def) \
+    static type_def __attribute__ ((section("."#section_name))) __attribute__((used))
+
+#elif defined(__ICCARM__)
+
+#define NRF_SECTION_VARS_ADD(section_name, type_def) \
+    static __root type_def @ #section_name
+
+#endif
+
+
+/**@brief   Macro to get symbol from named 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 sizeof of the stored type, no 
+ *              padding can exist in the named section in between individual 
+ *              stored items or this macro will fail.
+ *
+ * @param[in]   i               Index of item in section.
+ * @param[in]   type_name       Type name of item in section.
+ * @param[in]   section_name    Name of the section.
+ */
+#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
+
+#define NRF_SECTION_VARS_GET(i, type_name, section_name) \
+    (type_name*)(NRF_SECTION_VARS_START_ADDR(section_name) + i * sizeof(type_name))
+      
+#elif defined(__GNUC__)
+
+#define NRF_SECTION_VARS_GET(i, type_name, section_name) \
+    (type_name*)(NRF_SECTION_VARS_START_ADDR(section_name) + i * sizeof(type_name))
+      
+#elif defined(__ICCARM__)
+
+#define NRF_SECTION_VARS_GET(i, type_name, section_name) \
+    (type_name*)(NRF_SECTION_VARS_START_ADDR(section_name) + i * sizeof(type_name))
+
+#endif
+
+
+/**@brief   Macro to get number of items in named section.
+ *
+ * @param[in]   type_name       Type name of item in section.
+ * @param[in]   section_name    Name of the section.
+ */
+#define NRF_SECTION_VARS_COUNT(type_name, section_name) \
+    NRF_SECTION_VARS_LENGTH(section_name) / sizeof(type_name)
+
+/** @} */
+
+#endif // SECTION_VARS_H__