arch: arm: cortex_m: Consolidate bss/noinit sections for kernel/user mode #83721
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…mode Userspace originally required bss to precede kobject_data, as kobject_data size was not known until the final linking stage (zephyrproject-rtos#21747). zephyrproject-rtos#33687 reserved space for kobject_data, allowing bss to now be after kobject_data. Placing bss/noinit at the end of the linker script reduces the size of a "zephyr.bin" file, as the NOLOAD sections can be excluded. It also keeps the code common between kernel/user mode Signed-off-by: Grant Ramsay <gramsay@enphaseenergy.com>
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Could you please have a look at this comment. I think we might have introduced an issue with __kernel_ram_start already in #74042 but I am not sure what the impact is since there is no test failure. |
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Userspace originally required bss to precede kobject_data, as kobject_data size was not known until the final linking stage (#21747).
#33687 reserved space for kobject_data, allowing bss to now be after kobject_data.
Placing bss/noinit at the end of the linker script reduces the size of a "zephyr.bin" file, as the NOLOAD sections can be excluded. It also keeps the code common between kernel/user mode
@tejlmand as discussed here: #74042 (comment)