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| author | Kees Cook <keescook@chromium.org> | 2022-05-03 13:55:02 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2022-05-08 01:33:07 -0700 |
| commit | be2b34fa9be31c60a95989f984c9a5d40cd781b6 (patch) | |
| tree | a1b5f247ac20de2866d52ea68930b47268366efc /Documentation/kbuild | |
| parent | 613f4b3ed7902d1dbbc6ade6401e452a63dfbc21 (diff) | |
| download | lwn-be2b34fa9be31c60a95989f984c9a5d40cd781b6.tar.gz lwn-be2b34fa9be31c60a95989f984c9a5d40cd781b6.zip | |
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.rst | 5 |
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 -------------------- |