[GitHub/mt8127/android_kernel_alcatel_ttab.git] / scripts / mkcompile_h

TARGET=$1
ARCH=$2
SMP=$3
PREEMPT=$4
CC=$5

# If compile.h exists already and we don't own autoconf.h
# (i.e. we're not the same user who did make *config), don't
# modify compile.h
# So "sudo make install" won't change the "compiled by <user>"
# do "compiled by root"

if [ -r $TARGET -a ! -O include/linux/autoconf.h ]; then
  echo "  SKIPPED $TARGET"
  exit 0
fi

# Do not expand names
set -f

# Fix the language to get consistent output
LC_ALL=C
export LC_ALL

if [ -z "$KBUILD_BUILD_VERSION" ]; then
	if [ -r .version ]; then
		VERSION=`cat .version`
	else
		VERSION=0
		echo 0 > .version
	fi
else
	VERSION=$KBUILD_BUILD_VERSION
fi

if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
	TIMESTAMP=`date`
else
	TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
fi

UTS_VERSION="#$VERSION"
CONFIG_FLAGS=""
if [ -n "$SMP" ] ; then CONFIG_FLAGS="SMP"; fi
if [ -n "$PREEMPT" ] ; then CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT"; fi
UTS_VERSION="$UTS_VERSION $CONFIG_FLAGS $TIMESTAMP"

# Truncate to maximum length

UTS_LEN=64
UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/"

# Generate a temporary compile.h

( 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 \"`echo $UTS_VERSION | $UTS_TRUNCATE`\"

  echo \#define LINUX_COMPILE_TIME \"`date +%T`\"
  echo \#define LINUX_COMPILE_BY \"`whoami`\"
  echo \#define LINUX_COMPILE_HOST \"`hostname | $UTS_TRUNCATE`\"

  if [ -x /bin/dnsdomainname ]; then
    echo \#define LINUX_COMPILE_DOMAIN \"`dnsdomainname | $UTS_TRUNCATE`\"
  elif [ -x /bin/domainname ]; then
    echo \#define LINUX_COMPILE_DOMAIN \"`domainname | $UTS_TRUNCATE`\"
  else
    echo \#define LINUX_COMPILE_DOMAIN
  fi

  echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | tail -n 1`\"
) > .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.
# 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 [ -r $TARGET ] && \
      grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' $TARGET > .tmpver.1 && \
      grep -v 'UTS_VERSION\|LINUX_COMPILE_TIME' .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
Commit	Line	Data
1da177e4 LT	1	TARGET=$1
	2	ARCH=$2
	3	SMP=$3
bd5bdd87 SR	4	PREEMPT=$4
bd5bdd87 SR	5	CC=$5
1da177e4 LT	6
	7	# If compile.h exists already and we don't own autoconf.h
	8	# (i.e. we're not the same user who did make *config), don't
	9	# modify compile.h
	10	# So "sudo make install" won't change the "compiled by <user>"
	11	# do "compiled by root"
	12
	13	if [ -r $TARGET -a ! -O include/linux/autoconf.h ]; then
	14	echo " SKIPPED $TARGET"
	15	exit 0
	16	fi
	17
	18	# Do not expand names
	19	set -f
	20
87c94bfb SR	21	# Fix the language to get consistent output
	22	LC_ALL=C
	23	export LC_ALL
	24
	25	if [ -z "$KBUILD_BUILD_VERSION" ]; then
	26	if [ -r .version ]; then
	27	VERSION=`cat .version`
	28	else
	29	VERSION=0
	30	echo 0 > .version
	31	fi
1da177e4	32	else
87c94bfb	33	VERSION=$KBUILD_BUILD_VERSION
1da177e4 LT	34	fi
1da177e4 LT	35
87c94bfb SR	36	if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then
	37	TIMESTAMP=`date`
	38	else
	39	TIMESTAMP=$KBUILD_BUILD_TIMESTAMP
	40	fi
1da177e4 LT	41
1da177e4 LT	42	UTS_VERSION="#$VERSION"
bd5bdd87 SR	43	CONFIG_FLAGS=""
	44	if [ -n "$SMP" ] ; then CONFIG_FLAGS="SMP"; fi
	45	if [ -n "$PREEMPT" ] ; then CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT"; fi
87c94bfb	46	UTS_VERSION="$UTS_VERSION $CONFIG_FLAGS $TIMESTAMP"
1da177e4 LT	47
	48	# Truncate to maximum length
	49
	50	UTS_LEN=64
	51	UTS_TRUNCATE="sed -e s/\(.\{1,$UTS_LEN\}\).*/\1/"
	52
	53	# Generate a temporary compile.h
	54
	55	( echo /\* This file is auto generated, version $VERSION \*/
bd5bdd87 SR	56	if [ -n "$CONFIG_FLAGS" ] ; then echo "/* $CONFIG_FLAGS */"; fi
bd5bdd87 SR	57
1da177e4 LT	58	echo \#define UTS_MACHINE \"$ARCH\"
	59
	60	echo \#define UTS_VERSION \"`echo $UTS_VERSION \| $UTS_TRUNCATE`\"
	61
87c94bfb	62	echo \#define LINUX_COMPILE_TIME \"`date +%T`\"
1da177e4 LT	63	echo \#define LINUX_COMPILE_BY \"`whoami`\"
	64	echo \#define LINUX_COMPILE_HOST \"`hostname \| $UTS_TRUNCATE`\"
	65
	66	if [ -x /bin/dnsdomainname ]; then
	67	echo \#define LINUX_COMPILE_DOMAIN \"`dnsdomainname \| $UTS_TRUNCATE`\"
	68	elif [ -x /bin/domainname ]; then
	69	echo \#define LINUX_COMPILE_DOMAIN \"`domainname \| $UTS_TRUNCATE`\"
	70	else
	71	echo \#define LINUX_COMPILE_DOMAIN
	72	fi
	73
87c94bfb	74	echo \#define LINUX_COMPILER \"`$CC -v 2>&1 \| tail -n 1`\"
1da177e4 LT	75	) > .tmpcompile
	76
	77	# Only replace the real compile.h if the new one is different,
	78	# in order to preserve the timestamp and avoid unnecessary
	79	# recompilations.
	80	# We don't consider the file changed if only the date/time changed.
	81	# A kernel config change will increase the generation number, thus
	82	# causing compile.h to be updated (including date/time) due to the
	83	# changed comment in the
	84	# first line.
	85
	86	if [ -r $TARGET ] && \
	87	grep -v 'UTS_VERSION\\|LINUX_COMPILE_TIME' $TARGET > .tmpver.1 && \
	88	grep -v 'UTS_VERSION\\|LINUX_COMPILE_TIME' .tmpcompile > .tmpver.2 && \
	89	cmp -s .tmpver.1 .tmpver.2; then
	90	rm -f .tmpcompile
	91	else
	92	echo " UPD $TARGET"
	93	mv -f .tmpcompile $TARGET
	94	fi
	95	rm -f .tmpver.1 .tmpver.2