diff options
| author | Olivier Matz <olivier.matz@6wind.com> | 2017-03-24 14:21:31 +0100 |
|---|---|---|
| committer | Thomas Monjalon <thomas.monjalon@6wind.com> | 2017-03-27 23:28:43 +0200 |
| commit | feb9f680cd2c1df3d47bf4c05dc872467176e1e3 (patch) | |
| tree | caef9798533f2249ad24668b4e6d21d247c792a1 /lib/librte_efd | |
| parent | 5b2976c718e0717f5e1b39b50ac71fb2ce80e47c (diff) | |
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 'lib/librte_efd')
| -rw-r--r-- | lib/librte_efd/Makefile | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/lib/librte_efd/Makefile b/lib/librte_efd/Makefile index a442c6260c..b9277bc5d7 100644 --- a/lib/librte_efd/Makefile +++ b/lib/librte_efd/Makefile @@ -47,9 +47,4 @@ SRCS-$(CONFIG_RTE_LIBRTE_EFD) := rte_efd.c # install this header file SYMLINK-$(CONFIG_RTE_LIBRTE_EFD)-include := rte_efd.h -# this lib depends upon: -DEPDIRS-$(CONFIG_RTE_LIBRTE_EFD) += lib/librte_eal -DEPDIRS-$(CONFIG_RTE_LIBRTE_EFD) += lib/librte_ring -DEPDIRS-$(CONFIG_RTE_LIBRTE_EFD) += lib/librte_hash - include $(RTE_SDK)/mk/rte.lib.mk |