[Buildroot] [git commit] Makefile: expose 'graph-depends' to generate a graph of the dependency tree

[Buildroot] [git commit] Makefile: expose 'graph-depends' to generate a graph of the dependency tree

[Thomas Petazzoni]

commit: http://git.buildroot.net/buildroot/commit/?id=0cfe3ab88c6e1410ca719801147b1ba566c86d0d
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master

Generate the graph of the complete dependency tree by calling:
    make graph-depends

It's also possible to generate the graph-depends for a single package:
    make PKG-graph-depends

The graphs are generated in $(O)/graphs/

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 Makefile               |    7 +++++++
 package/pkg-generic.mk |    5 +++++
 2 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/Makefile b/Makefile
index 98ca798..8107865 100644
--- a/Makefile
+++ b/Makefile
@@ -642,6 +642,11 @@ graph-build: $(O)/build/build-time.log
 				   --output=$(O)/graphs/build.pie-$(t).pdf \
 				   $(if $(GRAPH_ALT),--alternate-colors)$(sep))
 
+graph-depends:
+	@$(INSTALL) -d $(O)/graphs
+	@./support/scripts/graph-depends \
+	|dot -Tpdf -o $(O)/graphs/$(@).pdf
+
 else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
 
 all: menuconfig
@@ -814,6 +819,7 @@ help:
 	@echo '  toolchain              - build toolchain'
 	@echo '  <package>-rebuild      - force recompile <package>'
 	@echo '  <package>-reconfigure  - force reconfigure <package>'
+	@echo '  <package>-graph-depends    - generate graph of the dependency tree for package'
 	@echo
 	@echo 'Configuration:'
 	@echo '  menuconfig             - interactive curses-based configurator'
@@ -855,6 +861,7 @@ endif
 	@echo '  manual-text            - build manual in text'
 	@echo '  manual-epub            - build manual in ePub'
 	@echo '  graph-build            - generate graphs of the build times'
+	@echo '  graph-depends          - generate graph of the dependency tree'
 	@echo
 	@echo 'Miscellaneous:'
 	@echo '  source                 - download all sources needed for offline-build'
diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index 66034ba..8005ce9 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -468,6 +468,11 @@ endif
 $(1)-show-depends:
 			@echo $$($(2)_DEPENDENCIES)
 
+$(1)-graph-depends:
+			@$(INSTALL) -d $(O)/graphs
+			@./support/scripts/graph-depends $(1) \
+			|dot -Tpdf -o $(O)/graphs/$$(@).pdf
+
 $(1)-dirclean:		$$($(2)_TARGET_DIRCLEAN)
 
 $(1)-clean-for-rebuild:

[Buildroot] [git commit] Makefile: expose 'graph-depends' to generate a graph of the dependency tree

[Thomas Petazzoni]

Yann,

On Sun, 29 Dec 2013 12:13:19 +0100, Thomas Petazzoni wrote:

> Generate the graph of the complete dependency tree by calling:
>     make graph-depends
> 
> It's also possible to generate the graph-depends for a single package:
>     make PKG-graph-depends

I just tested this in an out-of-tree situation... and it doesn't work.
It generates the dependency graph of the configuration that is in the
Buildroot source tree (I happened to have one) and not the one of the
Buildroot build tree.

To reproduce:

	cd buildroot-sources/
	make menuconfig
	# create some configuration 1
	mkdir ../buildroot-build
	cd ../buildroot-build
	make -C ../buildroot-sources O=$(pwd) menuconfig
	# create some configuration 2
	make graph-depends

The generated graph will correspond to "configuration 1" and not the
expected "configuration 2".

I suspect it's a problem in the graph-depends script itself rather than
the integration you made, but I haven't looked in detail.

Cheers,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

[Buildroot] [git commit] Makefile: expose 'graph-depends' to generate a graph of the dependency tree

[Yann E. MORIN]

Thomas, All,

On 2014-01-07 08:37 +0800, Thomas Petazzoni spake thusly:
> On Sun, 29 Dec 2013 12:13:19 +0100, Thomas Petazzoni wrote:
> 
> > Generate the graph of the complete dependency tree by calling:
> >     make graph-depends
> > 
> > It's also possible to generate the graph-depends for a single package:
> >     make PKG-graph-depends
> 
> I just tested this in an out-of-tree situation... and it doesn't work.
> It generates the dependency graph of the configuration that is in the
> Buildroot source tree (I happened to have one) and not the one of the
> Buildroot build tree.

It is evven broken when there is no configuration in the Buildroot
source tree.

I'll see what I can do...

Regards,
Yann E. MORIN.

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