When device-tree compilation fails it is sometimes tricky to see which line is broken, since the input file to dtc is a pre-processed version of the device tree.
Add a line that points to the file that needs to be checked:
Output is something like this:
Error: arch/x86/dts/.chromebook_coral.dtb.pre.tmp:170.15-16 syntax error FATAL ERROR: Unable to parse input tree Check /tmp/b/chromebook_coral/arch/x86/dts/.chromebook_coral.dtb.pre.tmp for errors
Signed-off-by: Simon Glass sjg@chromium.org ---
scripts/Makefile.lib | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index ef116e0e0ae..c10cd83a0a3 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -300,7 +300,9 @@ cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \ $(DTC) -O dtb -o $@ -b 0 \ -i $(dir $<) $(DTC_FLAGS) \ - -d $(depfile).dtc.tmp $(dtc-tmp) ; \ + -d $(depfile).dtc.tmp $(dtc-tmp) || \ + (echo "Check $(shell pwd)/$(pre-tmp) for errors" && false) \ + ; \ cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) ; \ sed -i "s:$(pre-tmp):$(<):" $(depfile)