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scripts/dtc: dtx_diff - add info to error message

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If kernel config options are not properly set, "make scripts" will not
compile dtc.  Update the unable to find dtc error message to check
the kernel config and give better advice on how to create dtc.

Reword another error message to increase clarity.

Signed-off-by: Frank Rowand <frank.rowand@sonymobile.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Frank Rowand 2016-02-02 11:02:35 -08:00 committed by Rob Herring
parent 10eadc253d
commit 60c7f4cb1f
1 changed files with 10 additions and 4 deletions
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14
scripts/dtc/dtx_diff
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@ -136,8 +136,7 @@ compile_to_dts() {
echo "" >&2
echo " architecture ${dtx_arch} is in file path," >&2
echo " but does not match shell variable \$ARCH" >&2
echo " (${ARCH}) does not match shell variable" >&2
echo " \$ARCH (${ARCH})" >&2
echo " >>\$ARCH<< is: >>${ARCH}<<" >&2
fi
if [ ! -d ${srctree}/arch/${ARCH} ] ; then
@ -267,6 +266,14 @@ DTC="${__KBUILD_OUTPUT}/scripts/dtc/dtc"
if [ ! -x ${DTC} ] ; then
__DTC="dtc"
if grep -q "^CONFIG_DTC=y" ${__KBUILD_OUTPUT}/.config ; then
make_command='
make scripts'
else
make_command='
Enable CONFIG_DTC in the kernel configuration
make scripts'
fi
if ( ! which ${__DTC} >/dev/null ) ; then
# use spaces instead of tabs in the error message
@ -280,8 +287,7 @@ ERROR: unable to find a 'dtc' program
'dtc' is: ${DTC}
If it does not exist, create it from the root of the Linux source tree:
'make scripts'.
${make_command}
If not at the root of the Linux kernel source tree -s SRCTREE or -S
may need to be specified to find 'dtc'.