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| author |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-11-06 12:23:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-11-06 12:23:10 -0800 |
| commit | 35697d81a778223727c2a01a3480735cf51edd93 (patch) | |
| tree | 03d17c728136a483fe1137ef59d792d34475dc5e /Documentation | |
| parent | Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm (diff) | |
| parent | kconfig: fix segmentation fault in menuconfig search (diff) | |
| download | linux-dev-35697d81a778223727c2a01a3480735cf51edd93.tar.xz linux-dev-35697d81a778223727c2a01a3480735cf51edd93.zip | |
Merge tag 'kbuild-fixes-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Use POSIX-compatible grep options
- Document git-related tips for reproducible builds
- Fix a typo in the modpost rule
- Suppress SIGPIPE error message from gcc-ar and llvm-ar
- Fix segmentation fault in the menuconfig search
* tag 'kbuild-fixes-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: fix segmentation fault in menuconfig search
kbuild: fix SIGPIPE error message for AR=gcc-ar and AR=llvm-ar
kbuild: fix typo in modpost
Documentation: kbuild: Add description of git for reproducible builds
kbuild: use POSIX-compatible grep option
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kbuild/reproducible-builds.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/kbuild/reproducible-builds.rst b/Documentation/kbuild/reproducible-builds.rst index 071f0151a7a4..f2dcc39044e6 100644 --- a/Documentation/kbuild/reproducible-builds.rst +++ b/Documentation/kbuild/reproducible-builds.rst @@ -119,6 +119,16 @@ To avoid this, you can make the vDSO different for different kernel versions by including an arbitrary string of "salt" in it. This is specified by the Kconfig symbol ``CONFIG_BUILD_SALT``. +Git +--- + +Uncommitted changes or different commit ids in git can also lead +to different compilation results. For example, after executing +``git reset HEAD^``, even if the code is the same, the +``include/config/kernel.release`` generated during compilation +will be different, which will eventually lead to binary differences. +See ``scripts/setlocalversion`` for details. + .. _KBUILD_BUILD_TIMESTAMP: kbuild.html#kbuild-build-timestamp .. _KBUILD_BUILD_USER and KBUILD_BUILD_HOST: kbuild.html#kbuild-build-user-kbuild-build-host .. _KCFLAGS: kbuild.html#kcflags |