From: Ard Biesheuvel <ard.biesheuvel@linaro.org> maillist inclusion commit 857ddf520d76d6516d5cdca396461141b7ca921b category: feature feature: ARM kaslr support bugzilla: https://gitee.com/openeuler/kernel/issues/I8KNA9 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?h=arm... ------------------------------------------------- When running in PIC mode, the compiler will emit const structures containing runtime relocatable quantities into .data.rel.ro.* sections, so that the linker can be smart about placing them together in a segment that is read-write initially, and is remapped read-only afterwards. This is exactly what __ro_after_init aims to provide, so move these sections together. Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Cui GaoSheng <cuigaosheng1@huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Signed-off-by: Felix Fu <fuzhen5@huawei.com> --- include/asm-generic/vmlinux.lds.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 67d8dd2f1bde..5896b7bc981f 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -428,7 +428,7 @@ #define RO_AFTER_INIT_DATA \ . = ALIGN(8); \ __start_ro_after_init = .; \ - *(.data..ro_after_init) \ + *(.data..ro_after_init .data.rel.ro.*) \ JUMP_TABLE_DATA \ STATIC_CALL_DATA \ __end_ro_after_init = .; -- 2.34.1