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 ---
scripts/Makefile.lib | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 39f03398ed8..0aa8953a720 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -438,7 +438,8 @@ 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