RE: nrf9160 region `FLASH' overflowed

fatalfeel — Thu, 10 Jun 2021 04:00:26 GMT

search *.cmake, Kconfig*.*, Kconfig
found ~/ncs/bootloader/mcuboot/boot/zephyr/Kconfig

partition=MCUBOOT
partition-size=0xc000
source "${ZEPHYR_BASE}/../nrf/subsys/partition_manager/Kconfig.template.partition_size"

RE: nrf9160 region `FLASH' overflowed

fatalfeel — Mon, 10 May 2021 17:25:48 GMT

I got solve this is because mcuboot .text overflow

when I use CONFIG_DEBUG=y

in non-secure mode will hapen

from Map=/root/ncs/nrf/applications/serial_lte_modem/build_nrf9160dk_nrf9160ns/mcuboot/zephyr/zephyr_prebuilt.map -Wl,--whole-archive app/libapp.a zephyr/libzephyr.a zephyr/arch/common/libarch__common.a

check
~/ncs/zephyr/samples/hello_world/build_nrf9160dk_nrf9160ns/mcuboot/zephyr/zephyr_prebuilt.map

_flash_used = (LOADADDR (.last_section) - _image_rom_start)

_image_rom_start = 0x0
.last_section = 0x0000000000012fd4

~/ncs/zephyr/samples/hello_world/build_nrf9160dk_nrf9160ns/partitions.yml
mcuboot:
address: 0x0
end_address: 0xc000

12fd4 - c000 = 6FD4 = 28628

#also can use this tool
python3 /root/ncs/nrf/scripts/partition_manager_report.py --input /root/ncs/zephyr/samples/hello_world/build_nrf9160dk_nrf9160ns/partitions.yml

flash_primary (0x100000 - 1024kB):
+--------------------------------------------------+
| 0x0: mcuboot (0xc000 - 48kB) |
| 0xc000: EMPTY_0 (0x4000 - 16kB) |
+---0x10000: mcuboot_primary (0x78000 - 480kB)-----+
| 0x10000: mcuboot_pad (0x200 - 512B) |
+---0x10200: mcuboot_primary_app (0x77e00 - 479kB)-+
| 0x10200: spm (0x10000 - 64kB) |
| 0x20200: app (0x67e00 - 415kB) |
+--------------------------------------------------+
| 0x88000: mcuboot_secondary (0x78000 - 480kB) |
+--------------------------------------------------+

otp (0x2f4 - 756B):
+------------------------------+
| 0xff8108: otp (0x2f4 - 756B) |
+------------------------------+

sram_primary (0x40000 - 256kB):
+------------------------------------------------+
+---0x20000000: sram_secure (0x10000 - 64kB)-----+
| 0x20000000: spm_sram (0x10000 - 64kB) |
+---0x20010000: sram_nonsecure (0x30000 - 192kB)-+
| 0x20010000: sram_primary (0x30000 - 192kB) |
+------------------------------------------------+

//////////////////////////////////solve way

~/ncs/zephyr/samples/hello_world/prj.conf

# enable mcuboot/boot/zephyr project add this
CONFIG_BOOTLOADER_MCUBOOT=y

becuase it use another config

~/ncs/bootloader/mcuboot/boot/zephyr/prj.conf

and make .config in ~/ncs/zephyr/samples/hello_world/build_nrf9160dk_nrf9160ns/mcuboot/zephyr/.config

also can check this, see gcc use -Os

~/ncs/zephyr/cmake/compiler/gcc/compiler_flags.cmake

final make file in ses is ~/ncs/zephyr/samples/hello_world/build_nrf9160dk_nrf9160ns/build.emProject

///////////////////////////additional
someone may ask EMPTY_0 for what to use
in ~/ncs/nrf/samples/zigbee/ncp/configuration/nrf52840dongle_nrf52840/pm_static.yml

# Flash reserved for MBR
EMPTY_0:

# Flash reserved for nRF5 Bootloader
EMPTY_1:

# SRAM reserved to be used by the nRF5 Bootloader
EMPTY_2:

explain mbr
www.freecodecamp.org/.../

RE: nrf9160 region `FLASH' overflowed

Øivind — Mon, 10 May 2021 12:28:15 GMT

Hi,

You might be seeing the same issue as this case. Try to apply the changes in PR 4103, and see if that solves your issue.