user/sven/linux.git/scripts/mkcompile_h, branch v4.4.295

kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set

2021-07-28T07:12:34Z

[ Upstream commit a979522a1a88556e42a22ce61bccc58e304cb361 ] 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 Signed-off-by: Sasha Levin

kbuild: trivial - remove trailing spaces

2014-04-30T15:34:32Z

Signed-off-by: Masahiro Yamada Signed-off-by: Michal Marek

kbuild: LLVMLinux: Fix LINUX_COMPILER definition script for compilation with clang

2014-04-09T20:44:35Z

When building the LINUX_COMPILER definition, instead of merely taking the last line from "$(CC) -v", grep for ' version ' in the output. This supports both gcc and clang. Signed-off-by: Jan-Simon Möller Signed-off-by: Behan Webster Signed-off-by: Mark Charlebois Cc: PaX Team

Fix handling of backlash character in LINUX_COMPILE_BY name

2011-04-29T13:55:45Z

When using a domain login, `whoami` returns the login in user\domain format. This leads to either warnings on unrecognised escape sequences or escaped characters being generated for the user. This patch ensures that any backslash is escaped to a double-backslash to make sure the name is preserved correctly. This patch does not enforce escaping on the KBUILD_BUILD_USER variable, as this is something the user has control of and can escape if required. Signed-off-by: Marcin Nowakowski Signed-off-by: Michal Marek

kbuild: Allow to override LINUX_COMPILE_BY and LINUX_COMPILE_HOST macros

2011-04-18T12:26:55Z

Make it possible to override the user@host string displayed during boot and in /proc/version by the environment variables KBUILD_BUILD_USER and KBUILD_BUILD_HOST. Several distributions patch scripts/mkcompile_h to achieve this, so let's provide an official way. Also, document the KBUILD_BUILD_TIMESTAMP variable while at it. Signed-off-by: Michal Marek

kbuild: Drop unused LINUX_COMPILE_TIME and LINUX_COMPILE_DOMAIN macros

2011-04-18T12:25:51Z

Signed-off-by: Michal Marek

scripts/mkcompile_h: don't test for hardcoded paths

2010-02-02T13:33:56Z

Don't test for /bin/{dnsdomainname,domainname}, simply try to execute the command and check if it returned something. Reported-by: Glenn Sommer Acked-by: WANG Cong Tested-by: Glenn Sommer Signed-off-by: Michal Marek

kbuild: move autoconf.h to include/generated

2009-12-12T12:08:15Z

Signed-off-by: Sam Ravnborg Signed-off-by: Michal Marek

kbuild: mkcompile_h: trivial cleanups

2009-10-11T21:21:25Z

UTS_TRUNCATTE is simpler this way, and now editors idetify this as a shell script. Signed-off-by: Felipe Contreras Acked-by: WANG Cong Signed-off-by: Sam Ravnborg

kbuild: fix warning when domainname is not available

2009-10-11T21:21:25Z

Otherwise we get: "dnsdomainname: Unknown host" Signed-off-by: Felipe Contreras Acked-by: WANG Cong Signed-off-by: Sam Ravnborg