riscv: add STRICT_KERNEL_RWX support

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The commit contains that make text section as non-writable, rodata
section as read-only, and data section as non-executable.

The init section should be changed to non-executable.

Signed-off-by: Zong Li <zong.li@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

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Zong Li 2020-03-10 00:55:41 +08:00 • committed by Palmer Dabbelt

parent 00cb41d5ad

commit d27c3c9081

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3 changed files with 53 additions and 0 deletions

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1

arch/riscv/Kconfig

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8

arch/riscv/include/asm/set_memory.h

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44

arch/riscv/mm/init.c

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