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Makefile: expose target 'graph-build' to generate the build-time graphs

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Generate the build-time graphs by calling:
    make graph-build

This generates the graphs in $(O)/graphs/

It is possible to use the alternate color-scheme by setting the variable
GRAPH_ALT=1 on the command line:
    make GRAPH_ALT=1 graph-build

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>
This commit is contained in:
Yann E. MORIN 2013-12-28 18:39:11 +01:00 committed by Thomas Petazzoni
parent 7d656636bd
commit e16bf92252
2 changed files with 14 additions and 0 deletions
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12
Makefile
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@ -631,6 +631,17 @@ legal-info: dirs legal-info-clean legal-info-prepare $(TARGETS_LEGAL_INFO) \
show-targets:
@echo $(TARGETS)
graph-build: $(O)/build/build-time.log
@install -d $(O)/graphs
$(foreach o,name build duration,./support/scripts/graph-build-time \
--type=histogram --order=$(o) --input=$(<) \
--output=$(O)/graphs/build.hist-$(o).pdf \
$(if $(GRAPH_ALT),--alternate-colors)$(sep))
$(foreach t,packages steps,./support/scripts/graph-build-time \
--type=pie-$(t) --input=$(<) \
--output=$(O)/graphs/build.pie-$(t).pdf \
$(if $(GRAPH_ALT),--alternate-colors)$(sep))
else # ifeq ($(BR2_HAVE_DOT_CONFIG),y)
all: menuconfig
@ -843,6 +854,7 @@ endif
@echo ' manual-pdf - build manual in PDF'
@echo ' manual-text - build manual in text'
@echo ' manual-epub - build manual in ePub'
@echo ' graph-build - generate graphs of the build times'
@echo
@echo 'Miscellaneous:'
@echo ' source - download all sources needed for offline-build'

2
docs/manual/common-usage.txt
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@ -86,6 +86,8 @@ to +make+ or set in the environment:
Note that the Buildroot download directory can also be set from the
configuration interface, so through the Buildroot +.config+ file; this
is the recommended way of setting it.
* +GRAPH_ALT+, if set and non-empty, to use an alternate color-scheme in
build-time graphs
An example that uses config files located in the toplevel directory and
in your $HOME: