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From: Bastian Germann <bage@linutronix.de>
To: Masahiro Yamada <masahiroy@kernel.org>
Cc: Bastian Germann <bage@linutronix.de>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/1] kbuild: deb-pkg: Build parallely with current dpkg-buildpackage
Date: Wed, 15 Mar 2023 17:29:43 +0100	[thread overview]
Message-ID: <20230315162944.39542-2-bage@linutronix.de> (raw)
In-Reply-To: <20230315162944.39542-1-bage@linutronix.de>

With dpkg-buildpackage v1.21.10 or later, the only way to build the
deb-pkg generated package parallely is adding -j<N> to the MAKEFLAGS
environment variable or using the --jobs-force option. The package ignores
the usual parallel build option that is described in Debian Policy §4.9.1.

Derive make's -j parameter from the DEB_BUILD_OPTIONS environment variable
that ends up being set by dpkg-buildpackage -j<N>.

Link: https://www.debian.org/doc/debian-policy/ch-source.html
Signed-off-by: Bastian Germann <bage@linutronix.de>
---
 scripts/package/mkdebian | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/scripts/package/mkdebian b/scripts/package/mkdebian
index f74380036bb5..0217790e7a26 100755
--- a/scripts/package/mkdebian
+++ b/scripts/package/mkdebian
@@ -238,11 +238,15 @@ fi
 cat <<EOF > debian/rules
 #!$(command -v $MAKE) -f
 
+ifneq (,\$(filter parallel=%,\$(DEB_BUILD_OPTIONS)))
+	JOBS = -j\$(subst parallel=,,\$(filter parallel=%,\$(DEB_BUILD_OPTIONS)))
+endif
+
 srctree ?= .
 
 build-indep:
 build-arch:
-	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \
+	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \$(JOBS) \
 	\$(shell \$(srctree)/scripts/package/deb-build-option) \
 	olddefconfig all
 
@@ -250,10 +254,10 @@ build: build-arch
 
 binary-indep:
 binary-arch: build-arch
-	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} intdeb-pkg
+	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \$(JOBS) intdeb-pkg
 clean:
 	rm -rf debian/files debian/linux-*
-	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} clean
+	\$(MAKE) -f \$(srctree)/Makefile ARCH=${ARCH} \$(JOBS) clean
 
 binary: binary-arch
 EOF
-- 
2.39.2


  reply	other threads:[~2023-03-15 16:30 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-15 16:29 [PATCH v2 0/1] kbuild: deb-pkg: Build parallely with current dpkg-buildpackage Bastian Germann
2023-03-15 16:29 ` Bastian Germann [this message]
2023-03-15 16:51   ` [PATCH v2 1/1] " Masahiro Yamada
2023-03-15 16:52   ` Sedat Dilek

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