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General informations

The Linux kernel configuration item CONFIG_TOOLCHAIN_NEEDS_OLD_ISA_SPEC:

Help text

Certain versions of clang do not support zicsr and zifencei via -march but newer versions of binutils require it for the reasons noted in the help text of TOOLCHAIN_NEEDS_EXPLICIT_ZICSR_ZIFENCEI. This option causes an older ISA spec compatible with these older versions of clang to be passed to GAS, which has the same result as passing zicsr and zifencei to -march.



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