leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

dts/Makefile: simplify dtc invocation

Browse Source 
The invocation of dtc is significantly more complex that it could be,
in order to work around an issue on old versions of dtc, which print
a message to stdout every time they run.

Remove this workaround, on the assumption that people have or will
upgrade to a newer version of dtc. This simplifies the build rule
significantly.

Related, split the invocation of cpp and dtc into separate commands
rather than a pipeline, so that if either fail, it is detected. This has
the nice benefit of saving off the result of the pre-processing step,
allowing it to be easily inspected.

Assuming a new enough dtc (which an earlier patch enforces), dtc will
parse #line directives in its input file, and generate correct file and
line numbers in error messages, even though cpp is unconditionally
applied to its input file.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Stephen Warren 2013-07-24 10:09:18 -07:00 committed by Tom Rini
parent 6697d55862
commit cc4f427bbd
2 changed files with 3 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
View File

@ -16,6 +16,7 @@
*.patch
*.bin
*.cfgtmp
*.dts.tmp
# Build tree
/build-*

9
dts/Makefile
View File

@ -35,13 +35,8 @@ all: $(obj).depend $(LIB)
DT_BIN := $(obj)dt.dtb
$(DT_BIN): $(TOPDIR)/board/$(VENDOR)/dts/$(DEVICE_TREE).dts
rc=$$( \
cat $< | $(CPP) -P $(DTS_CPPFLAGS) - | \
{ { $(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} - 2>&1 ; \
echo $$? >&3 ; } | \
grep -v '^DTC: dts->dtb on file' ; \
} 3>&1 1>&2 ) ; \
exit $$rc
$(CPP) -P $(DTS_CPPFLAGS) $< -o $(DT_BIN).dts.tmp
$(DTC) -R 4 -p 0x1000 -O dtb -o ${DT_BIN} $(DT_BIN).dts.tmp
process_lds = \
$(1) | sed -r -n 's/^OUTPUT_$(2)[ ("]*([^")]*).*/\1/p'