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app_shmem: overhaul partition specification

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* K_APP_DMEM_SECTION/K_MEM_BMEM_SECTION macros now exist
  to specifically define the name of the sections for data
  and bss respectively.

* All boards now use the gen_app_partitions.py script, the
  padding hacks for non-power-of-two arches didn't work right
  in all cases. Linker scripts have been updated.

* The defined k_mem_partition is now completely initialized
  at build time. The region data structures now only exist
  to zero BSS.

Based on some work submitted by Adithya Baglody
<adithya.baglody@intel.com>

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2019-01-30 13:44:54 -08:00 • committed by Anas Nashif
commit 7adff462e7
6 changed files with 94 additions and 148 deletions
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16
include/arch/arc/v2/linker.ld
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@ -139,22 +139,12 @@ SECTIONS {
#include <app_data_alignment.ld>
#if defined(CONFIG_APP_SHARED_MEM)
#if defined(CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT)
#define APP_SHARED_ALIGN MPU_MIN_SIZE_ALIGN
#include <app_smem.ld>
#else
SECTION_PROLOGUE(_APP_SMEM_SECTION_NAME, (OPTIONAL),)
{
MPU_MIN_SIZE_ALIGN
_image_ram_start = .;
_app_smem_start = .;
APP_SMEM_SECTION()
MPU_MIN_SIZE_ALIGN
_app_smem_end = .;
} GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION)
#define SMEM_PARTITION_ALIGN MPU_ALIGN
#endif /* CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT */
#include <app_smem.ld>
_image_ram_start = _app_smem_start;
_app_smem_size = _app_smem_end - _app_smem_start;
_app_smem_rom_start = LOADADDR(_APP_SMEM_SECTION_NAME);
#endif /* CONFIG_APP_SHARED_MEM */