acpi: Allow include files within the board directory

Some .asl files include others using the iasl 'include' directive. This
needs to be able to find the files referenced.

For an out-of-tree build the source directory is not the current
directory. Moreover, U-Boot preprocesses the input file and puts the
result in the output directory. So iasl does not know where the real
source file came from.

Add a -I option to produce the correct behaviour. We could add an option
to not preprocess the .asl source, but for now that seems unnecessary.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2021-12-01 09:02:44 -07:00
parent 437992d3a9
commit a16f488239

View file

@ -461,7 +461,8 @@ quiet_cmd_acpi_c_asl= ASL $<
cmd_acpi_c_asl= \
$(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -D__ACPI__ \
-P $(UBOOTINCLUDE) -o $(ASL_TMP) $< && \
iasl -p $@ -tc $(ASL_TMP) $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
iasl -p $@ -I $(srctree)/board/$(BOARDDIR) -tc $(ASL_TMP) \
$(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
mv $(patsubst %.c,%.hex,$@) $@
$(obj)/dsdt.c: $(src)/dsdt.asl