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authorKees Cook <keescook@chromium.org>2022-05-03 23:55:02 +0300
committerKees Cook <keescook@chromium.org>2022-05-08 11:33:07 +0300
commitbe2b34fa9be31c60a95989f984c9a5d40cd781b6 (patch)
treea1b5f247ac20de2866d52ea68930b47268366efc /Documentation/kbuild
parent613f4b3ed7902d1dbbc6ade6401e452a63dfbc21 (diff)
downloadlinux-be2b34fa9be31c60a95989f984c9a5d40cd781b6.tar.xz
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 <keescook@chromium.org> Link: https://lore.kernel.org/r/20220503205503.3054173-6-keescook@chromium.org
Diffstat (limited to 'Documentation/kbuild')
-rw-r--r--Documentation/kbuild/reproducible-builds.rst5
1 files changed, 3 insertions, 2 deletions
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
--------------------