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-rwxr-xr-xscripts/mkcompile_h96
1 files changed, 11 insertions, 85 deletions
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index ca40a5258c87..2596f78e52ef 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -1,33 +1,10 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
-TARGET=$1
-ARCH=$2
-SMP=$3
-PREEMPT=$4
-PREEMPT_DYNAMIC=$5
-PREEMPT_RT=$6
-CC_VERSION="$7"
-LD=$8
+UTS_MACHINE=$1
+CC_VERSION="$2"
+LD=$3
-# Do not expand names
-set -f
-
-# Fix the language to get consistent output
-LC_ALL=C
-export LC_ALL
-
-if [ -z "$KBUILD_BUILD_VERSION" ]; then
- VERSION=$(cat .version 2>/dev/null || echo 1)
-else
- VERSION=$KBUILD_BUILD_VERSION
-fi
-
-if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
- TIMESTAMP=`date`
-else
- TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
-fi
if test -z "$KBUILD_BUILD_USER"; then
LINUX_COMPILE_BY=$(whoami | sed 's/\\/\\\\/')
else
@@ -39,63 +16,12 @@ else
LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST
fi
-UTS_VERSION="#$VERSION"
-CONFIG_FLAGS=""
-if [ -n "$SMP" ] ; then CONFIG_FLAGS="SMP"; fi
-
-if [ -n "$PREEMPT_RT" ] ; then
- CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT_RT"
-elif [ -n "$PREEMPT_DYNAMIC" ] ; then
- CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT_DYNAMIC"
-elif [ -n "$PREEMPT" ] ; then
- CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT"
-fi
-
-# Truncate to maximum length
-UTS_LEN=64
-UTS_VERSION="$(echo $UTS_VERSION $CONFIG_FLAGS $TIMESTAMP | cut -b -$UTS_LEN)"
-
-# Generate a temporary compile.h
+LD_VERSION=$(LC_ALL=C $LD -v | head -n1 |
+ sed -e 's/(compatible with [^)]*)//' -e 's/[[:space:]]*$//')
-{ echo /\* This file is auto generated, version $VERSION \*/
- if [ -n "$CONFIG_FLAGS" ] ; then echo "/* $CONFIG_FLAGS */"; fi
-
- echo \#define UTS_MACHINE \"$ARCH\"
-
- echo \#define UTS_VERSION \"$UTS_VERSION\"
-
- printf '#define LINUX_COMPILE_BY "%s"\n' "$LINUX_COMPILE_BY"
- echo \#define LINUX_COMPILE_HOST \"$LINUX_COMPILE_HOST\"
-
- LD_VERSION=$($LD -v | head -n1 | sed 's/(compatible with [^)]*)//' \
- | sed 's/[[:space:]]*$//')
- printf '#define LINUX_COMPILER "%s"\n' "$CC_VERSION, $LD_VERSION"
-} > .tmpcompile
-
-# Only replace the real compile.h if the new one is different,
-# in order to preserve the timestamp and avoid unnecessary
-# recompilations.
-# We don't consider the file changed if only the date/time changed,
-# unless KBUILD_BUILD_TIMESTAMP was explicitly set (e.g. for
-# reproducible builds with that value referring to a commit timestamp).
-# A kernel config change will increase the generation number, thus
-# causing compile.h to be updated (including date/time) due to the
-# changed comment in the
-# first line.
-
-if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
- IGNORE_PATTERN="UTS_VERSION"
-else
- IGNORE_PATTERN="NOT_A_PATTERN_TO_BE_MATCHED"
-fi
-
-if [ -r $TARGET ] && \
- grep -v $IGNORE_PATTERN $TARGET > .tmpver.1 && \
- grep -v $IGNORE_PATTERN .tmpcompile > .tmpver.2 && \
- cmp -s .tmpver.1 .tmpver.2; then
- rm -f .tmpcompile
-else
- echo " UPD $TARGET"
- mv -f .tmpcompile $TARGET
-fi
-rm -f .tmpver.1 .tmpver.2
+cat <<EOF
+#define UTS_MACHINE "${UTS_MACHINE}"
+#define LINUX_COMPILE_BY "${LINUX_COMPILE_BY}"
+#define LINUX_COMPILE_HOST "${LINUX_COMPILE_HOST}"
+#define LINUX_COMPILER "${CC_VERSION}, ${LD_VERSION}"
+EOF