80e3a2c246
We'd like these macros to simply do nothing if the feature isn't enabled rather than erroring out. Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
#ifndef ZEPHYR_INCLUDE_APP_MEMORY_APP_MEMDOMAIN_H_
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#define ZEPHYR_INCLUDE_APP_MEMORY_APP_MEMDOMAIN_H_
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#include <linker/linker-defs.h>
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#include <misc/dlist.h>
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#include <kernel.h>
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#ifdef CONFIG_APP_SHARED_MEM
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#if defined(CONFIG_X86)
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#define MEM_DOMAIN_ALIGN_SIZE _STACK_BASE_ALIGN
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#elif defined(STACK_ALIGN)
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#define MEM_DOMAIN_ALIGN_SIZE STACK_ALIGN
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#else
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#error "Not implemented for this architecture"
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#endif
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/**
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* @brief Name of the data section for a particular partition
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*
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* Useful for defining memory pools, or any other macro that takes a
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* section name as a parameter.
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*
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* @param id Partition name
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*/
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#define K_APP_DMEM_SECTION(id) data_smem_##id##_data
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/**
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* @brief Name of the bss section for a particular partition
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*
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* Useful for defining memory pools, or any other macro that takes a
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* section name as a parameter.
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*
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* @param id Partition name
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*/
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#define K_APP_BMEM_SECTION(id) data_smem_##id##_bss
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/**
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* @brief Place data in a partition's data section
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*
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* Globals tagged with this will end up in the data section for the
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* specified memory partition. This data should be initialized to some
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* desired value.
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*
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* @param id Name of the memory partition to associate this data
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*/
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#define K_APP_DMEM(id) _GENERIC_SECTION(K_APP_DMEM_SECTION(id))
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/**
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* @brief Place data in a partition's bss section
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*
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* Globals tagged with this will end up in the bss section for the
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* specified memory partition. This data will be zeroed at boot.
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*
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* @param id Name of the memory partition to associate this data
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*/
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#define K_APP_BMEM(id) _GENERIC_SECTION(K_APP_BMEM_SECTION(id))
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struct z_app_region {
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void *bss_start;
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size_t bss_size;
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};
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#define Z_APP_START(id) data_smem_##id##_start
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#define Z_APP_SIZE(id) data_smem_##id##_size
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#define Z_APP_BSS_START(id) data_smem_##id##_bss_start
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#define Z_APP_BSS_SIZE(id) data_smem_##id##_bss_size
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/**
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* @brief Define an application memory partition with linker support
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*
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* Defines a k_mem_paritition with the provided name.
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* This name may be used with the K_APP_DMEM and K_APP_BMEM macros to
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* place globals automatically in this partition.
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*
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* NOTE: placeholder char variable is defined here to prevent build errors
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* if a partition is defined but nothing ever placed in it.
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*
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* @param name Name of the k_mem_partition to declare
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*/
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#define K_APPMEM_PARTITION_DEFINE(name) \
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extern char Z_APP_START(name)[]; \
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extern char Z_APP_SIZE(name)[]; \
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struct k_mem_partition name = { \
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.start = (u32_t) &Z_APP_START(name), \
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.size = (u32_t) &Z_APP_SIZE(name), \
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.attr = K_MEM_PARTITION_P_RW_U_RW \
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}; \
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extern char Z_APP_BSS_START(name)[]; \
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extern char Z_APP_BSS_SIZE(name)[]; \
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_GENERIC_SECTION(.app_regions.name) \
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struct z_app_region name##_region = { \
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.bss_start = &Z_APP_BSS_START(name), \
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.bss_size = (size_t) &Z_APP_BSS_SIZE(name) \
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}; \
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K_APP_BMEM(name) char name##_placeholder;
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#else
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#define K_APP_BMEM(ptn)
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#define K_APP_DMEM(ptn)
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#define K_APP_DMEM_SECTION(ptn) .data
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#define K_APP_BMEM_SECTION(ptn) .bss
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#define K_APPMEM_PARTITION_DEFINE(name)
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#endif /* CONFIG_APP_SHARED_MEM */
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#endif /* ZEPHYR_INCLUDE_APP_MEMORY_APP_MEMDOMAIN_H_ */
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