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| author | Yann E. MORIN <yann.morin.1998@free.fr> | 2017-04-02 15:03:38 +0200 |
|---|---|---|
| committer | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2017-04-13 23:09:08 +0200 |
| commit | 75fcebb7a300a4973592c7870f6f85fb8623335f (patch) | |
| tree | 9b0f9891b5a5c54fe74134d721c27973a3e6cf21 | |
| parent | d996cb9d8abbc2393b4b0fb429df12a03ac0cd19 (diff) | |
| download | buildroot-75fcebb7a300a4973592c7870f6f85fb8623335f.tar.gz buildroot-75fcebb7a300a4973592c7870f6f85fb8623335f.zip | |
core: add rule to dump packages' build order
When debugging hidden dependencies, the build order is very important.
Most notably, it is interesting to identify potential culprits.
Add a new top-level rule, show-biuld-order, that dumps all the packages
in the order they would get built.
Note that there are a few differences with show-targets:
- more packages are reported, becasue show-targets does not report
host packages that have no prompt;
- the output is line-based, because we're using $(info $(1)); getting
a single output line like show-targets would require we use an
actual command, like printf '%s ' $(1); but that takes a lot of
time, while $(info $(1)) is almost instantaneous (the time to parse
the Makefiles);
- rootfs targets are not reported.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | package/pkg-generic.mk | 3 |
2 files changed, 5 insertions, 0 deletions
@@ -757,6 +757,8 @@ legal-info: dirs legal-info-clean legal-info-prepare $(foreach p,$(PACKAGES),$(p show-targets: @echo $(PACKAGES) $(TARGETS_ROOTFS) +show-build-order: $(patsubst %,%-show-build-order,$(PACKAGES)) + graph-build: $(O)/build/build-time.log @install -d $(GRAPHS_DIR) $(foreach o,name build duration,./support/scripts/graph-build-time \ diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk index 31dbc54557..3b26e6b483 100644 --- a/package/pkg-generic.mk +++ b/package/pkg-generic.mk @@ -737,6 +737,9 @@ $(1)-show-depends: $(1)-show-rdepends: @echo $$($(2)_RDEPENDENCIES) +$(1)-show-build-order: $$(patsubst %,%-show-build-order,$$($(2)_FINAL_ALL_DEPENDENCIES)) + $$(info $(1)) + $(1)-graph-depends: graph-depends-requirements $(call pkg-graph-depends,$(1),--direct) |
