kasjer opened a new pull request, #3150:
URL: https://github.com/apache/mynewt-core/pull/3150
When there is no config store defined there is little need to have config
support in boot/split.
When config is NOT present even if boot/split is present final code size can
be significantly reduced that is important when bootloader has functionality to
confirm images:
```
newt size nucleo-g491re-boot
Size of Application Image: app
BOOT SLOT0 RAM
66 0 490 *fill*
79 0 38 @apache-mynewt-core_boot_split.a
586 0 0 @apache-mynewt-core_boot_startup.a
1172 0 4 @apache-mynewt-core_crypto_mbedtls.a
132 0 0 @apache-mynewt-core_hw_bsp_nucleo-g491re.a
398 0 0 @apache-mynewt-core_hw_drivers_uart_uart_hal.a
672 0 13 @apache-mynewt-core_hw_hal.a
3074 0 160 @apache-mynewt-core_hw_mcu_stm_stm32_common.a
4090 0 40 @apache-mynewt-core_hw_mcu_stm_stm32g4xx.a
26 0 0 @apache-mynewt-core_hw_usb_tinyusb.a
4345 0 404 @apache-mynewt-core_hw_usb_tinyusb_msc_fat_view.a
248 0 76 @apache-mynewt-core_hw_usb_tinyusb_std_descriptors.a
190 0 0
@apache-mynewt-core_hw_usb_tinyusb_stm32_fsdev_stm32g4.a
9868 0 1309 @apache-mynewt-core_hw_usb_tinyusb_tinyusb_sdk.a
1452 0 46 @apache-mynewt-core_kernel_os.a
1810 0 0 @apache-mynewt-core_libc_baselibc.a
359 0 20 @apache-mynewt-core_sys_config.a
536 0 8 @apache-mynewt-core_sys_flash_map.a
6 0 4 @apache-mynewt-core_sys_sysinit.a
182 0 0 @apache-mynewt-core_util_scfg.a
174 0 4 @apache-mynewt-mcumgr_cmd_img_mgmt.a
74 0 0 @apache-mynewt-mcumgr_cmd_img_mgmt_port_mynewt.a
4958 0 6012 @mcuboot_boot_bootutil.a
80 0 0 @mcuboot_boot_mynewt.a
16 0 0 @mcuboot_boot_mynewt_flash_map_backend.a
84 0 0 nucleo-g491re-boot-sysinit-app.a
1660 0 0 libgcc.a
objsize
text data bss dec hex filename
35865 720 8424 45009 afd1
targets/nucleo-g491re-boot/app/@mcuboot/boot/mynewt/mynewt.elf
```
--------------------------------------------
```
newt size nucleo-g491re-boot
Size of Application Image: app
BOOT SLOT0 RAM
61 0 487 *fill*
32 0 2 @apache-mynewt-core_boot_split.a
586 0 0 @apache-mynewt-core_boot_startup.a
1172 0 4 @apache-mynewt-core_crypto_mbedtls.a
132 0 0 @apache-mynewt-core_hw_bsp_nucleo-g491re.a
398 0 0 @apache-mynewt-core_hw_drivers_uart_uart_hal.a
672 0 13 @apache-mynewt-core_hw_hal.a
3074 0 160 @apache-mynewt-core_hw_mcu_stm_stm32_common.a
4090 0 40 @apache-mynewt-core_hw_mcu_stm_stm32g4xx.a
26 0 0 @apache-mynewt-core_hw_usb_tinyusb.a
4345 0 404 @apache-mynewt-core_hw_usb_tinyusb_msc_fat_view.a
248 0 76 @apache-mynewt-core_hw_usb_tinyusb_std_descriptors.a
190 0 0
@apache-mynewt-core_hw_usb_tinyusb_stm32_fsdev_stm32g4.a
9868 0 1309 @apache-mynewt-core_hw_usb_tinyusb_tinyusb_sdk.a
534 0 29 @apache-mynewt-core_kernel_os.a
1724 0 0 @apache-mynewt-core_libc_baselibc.a
536 0 8 @apache-mynewt-core_sys_flash_map.a
6 0 4 @apache-mynewt-core_sys_sysinit.a
174 0 4 @apache-mynewt-mcumgr_cmd_img_mgmt.a
74 0 0 @apache-mynewt-mcumgr_cmd_img_mgmt_port_mynewt.a
4958 0 6012 @mcuboot_boot_bootutil.a
80 0 0 @mcuboot_boot_mynewt.a
16 0 0 @mcuboot_boot_mynewt_flash_map_backend.a
84 0 0 nucleo-g491re-boot-sysinit-app.a
772 0 0 libgcc.a
objsize
text data bss dec hex filename
33380 676 8392 42448 a5d0
bin/targets/nucleo-g491re-boot/app/@mcuboot/boot/mynewt/mynewt.elf
```
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