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linker: Add flash end ROM offset

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Reduces the size of an image in the linker script by using the
ROM end offset Kconfig value

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
This commit is contained in:
Jamie McCrae 2023-10-30 17:17:40 +00:00 • committed by Carles Cufí
commit 2522a78566
7 changed files with 51 additions and 16 deletions
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4
cmake/linker_script/arm/linker.cmake
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@ -18,12 +18,12 @@ math(EXPR FLASH_ADDR
if(CONFIG_FLASH_LOAD_SIZE GREATER 0)
math(EXPR FLASH_SIZE
"(${CONFIG_FLASH_LOAD_SIZE} + 0)"
"(${CONFIG_FLASH_LOAD_SIZE} + 0) - (${CONFIG_ROM_END_OFFSET} + 0)"
OUTPUT_FORMAT HEXADECIMAL
)
else()
math(EXPR FLASH_SIZE
"(${CONFIG_FLASH_SIZE} + 0) * 1024 - (${CONFIG_FLASH_LOAD_OFFSET} + 0)"
"(${CONFIG_FLASH_SIZE} + 0) * 1024 - (${CONFIG_FLASH_LOAD_OFFSET} + 0) - (${CONFIG_ROM_END_OFFSET} + 0)"
OUTPUT_FORMAT HEXADECIMAL
)
endif()