From: Alexandre Torgue <alexandre.torgue@st.com>
To: <robh+dt@kernel.org>, Frank Rowand <frowand.list@gmail.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Michal Marek <michal.lkml@markovi.net>,
<david@gibson.dropbear.id.au>, <sjg@chromium.org>
Cc: <devicetree@vger.kernel.org>,
Alexandre Torgue <alexandre.torgue@st.com>,
<linux-kernel@vger.kernel.org>, <linux-kbuild@vger.kernel.org>,
<devicetree-compiler@vger.kernel.org>,
Ian Lepore <ian@freebsd.org>
Subject: [RFC PATCH v2 4/4] script: make automatic dtb build info generation
Date: Fri, 21 Feb 2020 17:12:17 +0100 [thread overview]
Message-ID: <20200221161217.20069-5-alexandre.torgue@st.com> (raw)
In-Reply-To: <20200221161217.20069-1-alexandre.torgue@st.com>
Append each "xxx.dtb.dts.tmp" file with "build-info" entry during dtb
build. It allows to get build information (date, source version, ...)
for each device tree without modify them manually.
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index a5af84ef4ffc..f084e78267b2 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -289,6 +289,7 @@ quiet_cmd_dtc = DTC $@
cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
$(DTB_GEN_INFO) $(src) ; \
$(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
+ $(DTB_GEN_INFO) $(src) $(dtc-tmp) ; \
$(DTC) -O $(2) -o $@ -b 0 \
$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
diff --git a/scripts/gen_dtb_build_info.sh b/scripts/gen_dtb_build_info.sh
index 0cd8bd98e410..72f31e386787 100755
--- a/scripts/gen_dtb_build_info.sh
+++ b/scripts/gen_dtb_build_info.sh
@@ -6,5 +6,7 @@ set -o nounset
DTB_DIR=$1
DTB_COMPILE_BY=$(whoami | sed 's/\\/\\\\/')
DTB_INFO="From Linux $KERNELRELEASE by $DTB_COMPILE_BY the $(date).\0"
+DTS_FILE=$2
-printf "$DTB_INFO" > "$DTB_DIR/dtb-build.txt"
+printf "$DTB_INFO" > "arch/arm/boot/dts/dtb-build.txt"
+echo "&{/} {build-info = /incbin/(\"dtb-build.txt\");};" >> $DTS_FILE
--
2.17.1
next prev parent reply other threads:[~2020-02-21 16:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-21 16:12 [RFC PATCH v2 0/4] Alexandre Torgue
2020-02-21 16:12 ` [RFC PATCH v2 1/4] scripts: Add script to generate dtb build information Alexandre Torgue
2020-02-24 17:45 ` Masahiro Yamada
2020-02-26 16:38 ` Frank Rowand
2020-02-21 16:12 ` [RFC PATCH v2 2/4] of: fdt: print " Alexandre Torgue
2020-02-21 16:12 ` [RFC PATCH v2 3/4] ARM: dts: stm32: Add dtb build information entry for stm32mp157c-dk2 Alexandre Torgue
2020-02-21 16:12 ` Alexandre Torgue [this message]
2020-02-21 16:14 [RFC PATCH v2 0/4] Add device tree build information Alexandre Torgue
2020-02-21 16:14 ` [RFC PATCH v2 4/4] script: make automatic dtb build info generation Alexandre Torgue
2020-02-21 17:59 ` Frank Rowand
2020-02-26 20:56 ` Rob Herring
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