Re: [U-Boot] [PATCH v2] Makefile: fix parallel build

Dear Daniel Hobi,

In message 1260885106-3494-1-git-send-email-daniel.hobi@schmid-telecom.ch you wrote:

During parallel build, the top Makefile spawns multiple sub-makes for targets in cpu/$(CPU) and $(dir $(LDSCRIPT)). If the .depend files are not present in these directories, the sub-makes may end up generating these files simultaneously which leads to corrupted content.

...

diff --git a/Makefile b/Makefile index 19b5ac0..e9be7a5 100644 --- a/Makefile +++ b/Makefile @@ -400,7 +400,8 @@ env: $(MAKE) -C tools/env all MTD_VERSION=${MTD_VERSION} || exit 1

depend dep: $(TIMESTAMP_FILE) $(VERSION_FILE) $(obj)include/autoconf.mk

• for dir in $(SUBDIRS) ; do $(MAKE) -C $$dir _depend ; done
  

• for dir in $(SUBDIRS) cpu/$(CPU) $(dir $(LDSCRIPT)) ; do \
  

• 	$(MAKE) -C $$dir _depend ; done
  

I ageree with Mike: please add a comment here.

Best regards,

Wolfgang Denk