From be2b34fa9be31c60a95989f984c9a5d40cd781b6 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 3 May 2022 13:55:02 -0700 Subject: randstruct: Move seed generation into scripts/basic/ To enable Clang randstruct support, move the structure layout randomization seed generation out of scripts/gcc-plugins/ into scripts/basic/ so it happens early enough that it can be used by either compiler implementation. The gcc-plugin still builds its own header file, but now does so from the common "randstruct.seed" file. Cc: linux-hardening@vger.kernel.org Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20220503205503.3054173-6-keescook@chromium.org --- Documentation/kbuild/reproducible-builds.rst | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'Documentation/kbuild') diff --git a/Documentation/kbuild/reproducible-builds.rst b/Documentation/kbuild/reproducible-builds.rst index 81ff30505d35..071f0151a7a4 100644 --- a/Documentation/kbuild/reproducible-builds.rst +++ b/Documentation/kbuild/reproducible-builds.rst @@ -100,8 +100,9 @@ Structure randomisation ----------------------- If you enable ``CONFIG_RANDSTRUCT``, you will need to pre-generate -the random seed in ``scripts/gcc-plugins/randomize_layout_seed.h`` -so the same value is used in rebuilds. +the random seed in ``scripts/basic/randstruct.seed`` so the same +value is used by each build. See ``scripts/gen-randstruct-seed.sh`` +for details. Debug info conflicts -------------------- -- cgit v1.2.3