How to place the custom linker section in the .data section?

[AlphaBeta]

Hi,

I am working with nrf5340 with the Zephyr OS. I created a custom data section in a custom linker file.

.my_data_section :
{
PROVIDE(__my_data_section_start = .);
KEEP(*(.my_data_section))
PROVIDE(__my_data_section_end = .);
} > RAM AT > FLASH

I want to place "my_data_section"  under ".data" section in the final linker file. How can I do that?

[Hieu]

Hi AlphaBeta,

I see you created this case How can I add postbuild options to compute a checksum and add it at an address in Flash? .

From that case's text, it seems you already figured out how to create your own custom section in Flash.

If you already have the answer, it would be great if you could share it here for future readers.

Hieu

[AlphaBeta]

Both questions have different context.

In this question, I am able to create my own data section in RAM. However, the global variables I place in this section do not have the correct initial values that I expect. This is because they should be placed under ".data" section for the compiler to recognize about correct initialization.

In the final linker.cmd, I am expecting it to appear like the following (I just manually added this line for explanation purpose).

I do not know how to automatically do this since linker.cmd is automatically generated.