# git rev-parse -q --verify a979522a1a88556e42a22ce61bccc58e304cb361^{commit} # git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next warning: The last gc run reported the following. Please correct the root cause and remove .git/gc.log. Automatic cleanup will not be performed until the file is removed. warning: There are too many unreachable loose objects; run 'git prune' to remove them. # git rev-parse -q --verify a979522a1a88556e42a22ce61bccc58e304cb361^{commit} a979522a1a88556e42a22ce61bccc58e304cb361 # git checkout -q -f -B kisskb a979522a1a88556e42a22ce61bccc58e304cb361 # git clean -qxdf # < git log -1 # commit a979522a1a88556e42a22ce61bccc58e304cb361 # Author: Matthias Maennich # Date: Sat Jun 12 15:18:38 2021 +0100 # # kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set # # To avoid unnecessary recompilations, mkcompile_h does not regenerate # compile.h if just the timestamp changed. # Though, if KBUILD_BUILD_TIMESTAMP is set, an explicit timestamp for the # build was requested, in which case we should not ignore it. # # If a user follows the documentation for reproducible builds [1] and # defines KBUILD_BUILD_TIMESTAMP as the git commit timestamp, a clean # build will have the correct timestamp. A subsequent cherry-pick (or # amend) changes the commit timestamp and if an incremental build is done # with a different KBUILD_BUILD_TIMESTAMP now, that new value is not taken # into consideration. But it should for reproducibility. # # Hence, whenever KBUILD_BUILD_TIMESTAMP is explicitly set, do not ignore # UTS_VERSION when making a decision about whether the regenerated version # of compile.h should be moved into place. # # [1] https://www.kernel.org/doc/html/latest/kbuild/reproducible-builds.html # # Signed-off-by: Matthias Maennich # Signed-off-by: Masahiro Yamada # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 a979522a1a88556e42a22ce61bccc58e304cb361 # < make -s -j 8 ARCH=x86_64 O=/kisskb/build/kbuild_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux- allnoconfig # < make -s -j 8 ARCH=x86_64 O=/kisskb/build/kbuild_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 8 ARCH=x86_64 O=/kisskb/build/kbuild_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 8 ARCH=x86_64 O=/kisskb/build/kbuild_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/kbuild_x86_64-allnoconfig_x86_64-gcc4.9 # Build took: 0:00:51.886658