zephyr/include/linker/app_smem_aligned.ld

/* SPDX-License-Identifier: Apache-2.0 */

/* space holder  */
APP_SMEM_SECTION()
license: cleanup: add SPDX Apache-2.0 license identifier Update the files which contain no license information with the 'Apache-2.0' SPDX license identifier. Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of Zephyr, which is Apache version 2. Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2019-04-06 21:08:09 +08:00			`/* SPDX-License-Identifier: Apache-2.0 */`

linker: sort app shared mem partition by alignment If CONFIG_MPU_REQUIRES_POWER_OF_TWO_ALIGNMENT is enabled, the app shared memory partition may cause waste of memory due to the need for padding. For example, tests/subsys/jwt and board mps2_an385: z_test_mem_partition: addr 0x20000000, size 52 z_libc_partition : addr 0x20000040, size 4 k_mbedtls_partition : addr 0x20008000, size 32736 ending at 0x2000ffff, taking up 65536 bytes With power-of-two size and alignment requirement, k_mbedtls_partition takes up 32KB memory and needs to be aligned on 32KB boundary. If the above partitions are ordered as shown, there needs to be a lot of padding after z_libc_partition before k_mbedtls_partition can start. In order to minimize padding, these partitions need to be sort by size in descending order. After the changes here, the partitions are: k_mbedtls_partition : addr 0x20000000, size 32736 z_test_mem_partition: addr 0x20008000, size 52 z_libc_partition : addr 0x20008040, size 4 ending at 0x2000805f, taking up 32864 bytes With the above example, sorting results in a saving of 32672 bytes of saving. Fixes #14121 Signed-off-by: Daniel Leung <daniel.leung@intel.com> 2019-03-11 05:20:21 +08:00			`/* space holder */`
			`APP_SMEM_SECTION()`