| commit | 80d6b0c2eed2a504f6740cd1f5ea76dc50abfc4d | [log] [tgz] |
|---|---|---|
| author | Kees Cook <keescook@chromium.org> | Thu Apr 03 13:29:50 2014 -0700 |
| committer | Kees Cook <keescook@chromium.org> | Thu Oct 16 14:38:54 2014 -0700 |
| tree | 32f6d8a1c5a2250cc3f303df545dfbf52da62d19 | |
| parent | 1e6b48116a95046ec51f3d40f83aff8b006674d7 [diff] |
ARM: mm: allow text and rodata sections to be read-only This introduces CONFIG_DEBUG_RODATA, making kernel text and rodata read-only. Additionally, this splits rodata from text so that rodata can also be NX, which may lead to wasted memory when aligning to SECTION_SIZE. The read-only areas are made writable during ftrace updates and kexec. Signed-off-by: Kees Cook <keescook@chromium.org> Tested-by: Laura Abbott <lauraa@codeaurora.org> Acked-by: Nicolas Pitre <nico@linaro.org>