build: add busybox support to time prereq-check

Busybox time supports the GNU time '-f' syntax used by the build time
logging implemented in ff6e62b288, however the prerequisite check added
only works with GNU time installed as `time` or `gtime`.

As busybox is a multicall binary, the name of the symlink setup by
SetupHostCommand also must be changed from `gtime` to `time` to fix the
value of argv[0]. This causes a number of shells (including bash) to use
their builtin impelementation of time, so the sole invocation has been
changed to use `env time` to use the value found on the $PATH.

Signed-off-by: Andy Boyett <agb@agb.io>
This commit is contained in:
Andy Boyett 2018-05-16 22:09:57 -07:00 committed by John Crispin
parent b1a173d7c3
commit 591780615b
2 changed files with 4 additions and 3 deletions

View file

@ -138,9 +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', \
$(eval $(call SetupHostCommand,time,Please install GNU 'time' or BusyBox 'time', \
gtime --version 2>&1 | grep GNU, \
time --version 2>&1 | grep GNU))
time --version 2>&1 | grep GNU, \
busybox time 2>&1 | grep BusyBox))
$(eval $(call SetupHostCommand,perl,Please install Perl 5.x, \
perl --version | grep "perl.*v5"))

View file

@ -43,7 +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" -- \
env time -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)