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build: log time taken by each packages/steps

Browse source 
The idea is to easily get the list of packages taking the most time to build,
and see if we can improve them

v1: Use SetupHostCommand as recommended by John
v2: add space after 'time:', remove useless /usr/bin/time from SetupHostCommand

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
This commit is contained in:
Etienne Champetier 2018-04-30 12:55:12 -07:00 committed by John Crispin
parent f87dff8f72
commit ff6e62b288
2 changed files with 5 additions and 0 deletions
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4
include/prereq-build.mk
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@ -138,6 +138,10 @@ $(eval $(call SetupHostCommand,bzip2,Please install 'bzip2', \
$(eval $(call SetupHostCommand,wget,Please install GNU 'wget', \
wget --version | grep GNU))
$(eval $(call SetupHostCommand,gtime,Please install GNU 'time', \
gtime --version 2>&1 | grep GNU, \
time --version 2>&1 | grep GNU))
$(eval $(call SetupHostCommand,perl,Please install Perl 5.x, \
perl --version | grep "perl.*v5"))

1
include/subdir.mk
View file

@ -43,6 +43,7 @@ log_make = \
$(if $(BUILD_LOG), \
set -o pipefail; \
mkdir -p $(BUILD_LOG_DIR)/$(1)$(if $(4),/$(4));) \
gtime -f "time: $(1)$(if $(4),/$(4))/$(if $(3),$(3)-)$(2)\#%U\#%S\#%e" -- \
$$(SUBMAKE) $(subdir_make_opts) $(if $(3),$(3)-)$(2) \
$(if $(BUILD_LOG),SILENT= 2>&1 | tee $(BUILD_LOG_DIR)/$(1)$(if $(4),/$(4))/$(if $(3),$(3)-)$(2).txt)