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| author | Daniel Hobi <daniel.hobi@schmid-telecom.ch> | 2010-01-18 18:13:39 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2010-01-18 22:25:16 +0100 |
| commit | 2a9987935e3cdb61e7550c87cbc9f500a54f672d (patch) | |
| tree | c9ab6537d94eb5a3eebca80c9435e9b558e55250 | |
| parent | 88ffb2665cd066b6b20cfaade13929d4e8428dde (diff) | |
| download | blackbird-obmc-uboot-2a9987935e3cdb61e7550c87cbc9f500a54f672d.tar.gz blackbird-obmc-uboot-2a9987935e3cdb61e7550c87cbc9f500a54f672d.zip | |
Makefile: fix parallel build
During parallel build, the top Makefile spawns multiple sub-makes for
targets in cpu/$(CPU) and $(dir $(LDSCRIPT)). If the .depend files are
not present in these directories, the sub-makes may end up generating
these files simultaneously which leads to corrupted content.
A typical error message is:
.depend:39: *** multiple target patterns. Stop.
This patch serializes the creation of .depend in cpu/$(CPU) and
$(dir $(LDSCRIPT)) by adding these directories to the depend target
in the top Makefile.
Other directories in $(LIBS) are not affected since they contain only
one Make target and thus only one sub-make is spawned per directory.
Signed-off-by: Daniel Hobi <daniel.hobi@schmid-telecom.ch>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| -rw-r--r-- | Makefile | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -398,8 +398,11 @@ updater: env: $(MAKE) -C tools/env all MTD_VERSION=${MTD_VERSION} || exit 1 +# Explicitly make _depend in subdirs containing multiple targets to prevent +# parallel sub-makes creating .depend files simultaneously. 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 TAG_SUBDIRS = $(SUBDIRS) TAG_SUBDIRS += $(dir $(__LIBS)) |
