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authorOlivier Matz <olivier.matz@6wind.com>2017-03-24 14:21:31 +0100
committerThomas Monjalon <thomas.monjalon@6wind.com>2017-03-27 23:28:43 +0200
commitfeb9f680cd2c1df3d47bf4c05dc872467176e1e3 (patch)
treecaef9798533f2249ad24668b4e6d21d247c792a1 /mk/rte.bsdmodule.mk
parent5b2976c718e0717f5e1b39b50ac71fb2ce80e47c (diff)
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mk: optimize directory dependencies
Before this patch, the management of dependencies between directories had several issues: - the generation of .depdirs, done at configuration is slow: it can take more than one minute on some slow targets (usually ~10s on a standard PC without -j). - for instance, it is possible to express a dependency like: - app/foo depends on lib/librte_foo - and lib/librte_foo depends on app/bar But this won't work because the directories are traversed with a depth-first algorithm, so we have to choose between doing 'app' before or after 'lib'. - the script depdirs-rule.sh is too complex. - we cannot use "make -d" for debug, because the output of make is used for the generation of .depdirs. This patch moves the DEPDIRS-* variables in the upper Makefile, making the dependencies much easier to calculate. A DEPDIRS variable is still used to process library dependencies in LDLIBS. After this commit, "make config" is almost immediate. Signed-off-by: Olivier Matz <olivier.matz@6wind.com> Tested-by: Robin Jarry <robin.jarry@6wind.com> Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Diffstat (limited to 'mk/rte.bsdmodule.mk')
-rw-r--r--mk/rte.bsdmodule.mk2
1 files changed, 0 insertions, 2 deletions
diff --git a/mk/rte.bsdmodule.mk b/mk/rte.bsdmodule.mk
index 86b92ff..6fc137a 100644
--- a/mk/rte.bsdmodule.mk
+++ b/mk/rte.bsdmodule.mk
@@ -43,7 +43,6 @@ else
include $(RTE_SDK)/mk/internal/rte.install-pre.mk
include $(RTE_SDK)/mk/internal/rte.clean-pre.mk
include $(RTE_SDK)/mk/internal/rte.build-pre.mk
-include $(RTE_SDK)/mk/internal/rte.depdirs-pre.mk
# DPDK uses a more up-to-date gcc, so clear the override here.
unexport CC
@@ -111,7 +110,6 @@ doclean:
include $(RTE_SDK)/mk/internal/rte.install-post.mk
include $(RTE_SDK)/mk/internal/rte.clean-post.mk
include $(RTE_SDK)/mk/internal/rte.build-post.mk
-include $(RTE_SDK)/mk/internal/rte.depdirs-post.mk
.PHONY: FORCE
FORCE: