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| author |   Ovidiu Panait <ovidiu.panait@windriver.com> | 2020-12-23 15:08:51 +0200 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2021-01-12 17:43:05 +0000 |
| commit | 063b5de86624a42b0aa784db6dddc7552a6dee7f (patch) | |
| tree | 83dd3901b5f66e204095cb2f475f741cc119f0ff /meta | |
| parent | 5000aabe6ac336e7b424dafa1bf76271dee6a6f1 (diff) | |
| download | openembedded-core-063b5de86624a42b0aa784db6dddc7552a6dee7f.tar.gz | |
kernel-devicetree: Introduce KERNEL_DTC_FLAGS to pass dtc flags
Currently DTC_FLAGS kernel makefile parameter can be specified directly on the
command line by adding it to KERNEL_EXTRA_ARGS. However, this prevents
scripts/Makefile.lib logic from appending flags that silence dtc warnings (all
assignments done from within a makefile, to a variable specified on the command
line, are ignored).
Because of this, the do_compile log is cluttered with dtc warnings that should
only be printed when compiling with W="123":
...
/soc: node has a reg or ranges property, but no unit name
/soc/gpu: missing or empty reg/ranges property
/soc/firmware/gpio: missing or empty reg/ranges property
...
To fix this, introduce the dedicated KERNEL_DTC_FLAGS variable to hold
dtc flags and export DTC_FLAGS in the environment before generating the dtbs
(make allows "+=" operations on variables that come from the environment, so
the warnings are silenced properly).
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta')
| -rw-r--r-- | meta/classes/kernel-devicetree.bbclass | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/meta/classes/kernel-devicetree.bbclass b/meta/classes/kernel-devicetree.bbclass index 81dda8003f..d4f8864200 100644 --- a/meta/classes/kernel-devicetree.bbclass +++ b/meta/classes/kernel-devicetree.bbclass @@ -9,6 +9,9 @@ FILES_${KERNEL_PACKAGE_NAME}-image-zimage-bundle = "/${KERNEL_IMAGEDEST}/zImage- # Generate kernel+devicetree bundle KERNEL_DEVICETREE_BUNDLE ?= "0" +# dtc flags passed via DTC_FLAGS env variable +KERNEL_DTC_FLAGS ?= "" + normalize_dtb () { dtb="$1" if echo $dtb | grep -q '/dts/'; then @@ -50,6 +53,10 @@ do_configure_append() { } do_compile_append() { + if [ -n "${KERNEL_DTC_FLAGS}" ]; then + export DTC_FLAGS="${KERNEL_DTC_FLAGS}" + fi + for dtbf in ${KERNEL_DEVICETREE}; do dtb=`normalize_dtb "$dtbf"` oe_runmake $dtb CC="${KERNEL_CC} $cc_extra " LD="${KERNEL_LD}" ${KERNEL_EXTRA_ARGS} |