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CONFIG_LD_DEAD_CODE_DATA_ELIMINATION

General informations

The Linux kernel configuration item CONFIG_LD_DEAD_CODE_DATA_ELIMINATION:

Help text

Select this if the architecture wants to do dead code and data elimination with the linker by compiling with -ffunction-sections -fdata-sections and linking with --gc-sections.

This requires that the arch annotates or otherwise protects its external entry points from being discarded. Linker scripts must also merge .text.*, .data.*, and .bss.* correctly into output sections. Care must be taken not to pull in unrelated sections (e.g., '.text.init'). Typically '.' in section names is used to distinguish them from label names / C identifiers.

Hardware

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