Commit cccd5048 authored Jul 11, 2025 by Ilya Tagunov Committed by Anas Nashif Sep 13, 2025

linker: arc: add .rodata_in_data section to avoid unexpected placement



The .rodata_in_data section is produced by MWDT toolchain with -Hccm
option enabled. This option moves read-only data from the executable
memory (ICCM) to the data memory (DCCM), improving performance by
reducing conflicts between instruction fetches and data fetches.

Signed-off-by: Ilya Tagunov <Ilya.Tagunov@synopsys.com>
(cherry picked from commit 708c1dc4)

parent 4b84d556

include/zephyr/arch/arc/v2/linker.ld

+4 −0

Original line number	Diff line number	Diff line
		@@ -222,6 +222,10 @@ SECTIONS {
		(".data.")
		(".kernel.")

		/* This is an MWDT-specific section, created when -Hccm option is enabled */
		*(".rodata_in_data")
		(".rodata_in_data.")

		/* Located in generated directory. This file is populated by the
		* zephyr_linker_sources() Cmake function.
		*/

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