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Makefile: add support for top-level parallel make

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To be able to use top-level parallel make we must not depend in a rule
on the order of evaluation of the prerequisites, so instead of relyng on
the left to right ordering of evaluation of the prerequisites add an
explicit rule to describe the dependencies.

Add explicit rules to describe the following dependency chain:
$(TARGETS) -> target-finalize -> rootfs-* -> target-post-image

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Fabio Porcedda
2014-02-14 10:55:06 +01:00
committed by Peter Korsgaard
parent 6c5c08b854
commit a24877586a
2 changed files with 14 additions and 11 deletions
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4
fs/common.mk
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@@ -64,7 +64,7 @@ ROOTFS_$(2)_COMPRESS_EXT = .xz
ROOTFS_$(2)_COMPRESS_CMD = $$(XZ) -9 -C crc32 -c
endif
$$(BINARIES_DIR)/rootfs.$(1): $$(ROOTFS_$(2)_DEPENDENCIES)
$$(BINARIES_DIR)/rootfs.$(1): target-finalize $$(ROOTFS_$(2)_DEPENDENCIES)
@$$(call MESSAGE,"Generating root filesystem image rootfs.$(1)")
$$(foreach hook,$$(ROOTFS_$(2)_PRE_GEN_HOOKS),$$(call $$(hook))$$(sep))
rm -f $$(FAKEROOT_SCRIPT)
@@ -95,7 +95,7 @@ rootfs-$(1)-show-depends:
rootfs-$(1): $$(BINARIES_DIR)/rootfs.$(1) $$(ROOTFS_$(2)_POST_TARGETS)
ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
TARGETS += rootfs-$(1)
TARGETS_ROOTFS += rootfs-$(1)
endif
endef