28 # Setup common utility functions.
29 #
30 ################################################################
31
32 ifndef _MAKEBASE_GMK
33 _MAKEBASE_GMK := 1
34
35 ifeq ($(wildcard $(SPEC)),)
36 $(error MakeBase.gmk needs SPEC set to a proper spec.gmk)
37 endif
38
39 # By defining this pseudo target, make will automatically remove targets
40 # if their recipe fails so that a rebuild is automatically triggered on the
41 # next make invocation.
42 .DELETE_ON_ERROR:
43
44 ##############################
45 # Functions
46 ##############################
47
48
49 ### Functions for timers
50
51 # Store the build times in this directory.
52 BUILDTIMESDIR=$(OUTPUT_ROOT)/make-support/build-times
53
54 # Record starting time for build of a sub repository.
55 define RecordStartTime
56 $(MKDIR) -p $(BUILDTIMESDIR)
57 $(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)
58 $(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)_human_readable
59 endef
60
61 # Record ending time and calculate the difference and store it in a
62 # easy to read format. Handles builds that cross midnight. Expects
63 # that a build will never take 24 hours or more.
64 define RecordEndTime
65 $(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)
66 $(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)_human_readable
67 $(ECHO) `$(CAT) $(BUILDTIMESDIR)/build_time_start_$(strip $1)` `$(CAT) $(BUILDTIMESDIR)/build_time_end_$(strip $1)` $1 | \
540 ################################################################################
541 # Convenience functions for working around make's limitations with $(filter ).
542 containing = \
543 $(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),$v)))
544 not-containing = \
545 $(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),,$v)))
546
547 # Filter out duplicate sub strings while preserving order. Keeps the first occurance.
548 uniq = \
549 $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
550
551 # Return a list of all string elements that are duplicated in $1.
552 dups = \
553 $(strip $(foreach v, $(sort $1), $(if $(filter-out 1, \
554 $(words $(filter $v, $1))), $v)))
555
556 # String equals
557 equals = \
558 $(and $(findstring $(strip $1),$(strip $2)),\
559 $(findstring $(strip $2),$(strip $1)))
560
561 ################################################################################
562
563 ifneq ($(DISABLE_CACHE_FIND), true)
564 # In Cygwin, finds are very costly, both because of expensive forks and because
565 # of bad file system caching. Find is used extensively in $(shell) commands to
566 # find source files. This makes rerunning make with no or few changes rather
567 # expensive. To speed this up, these two macros are used to cache the results
568 # of simple find commands for reuse.
569 #
570 # Runs a find and stores both the directories where it was run and the results.
571 # This macro can be called multiple times to add to the cache. Only finds files
572 # with no filters.
573 #
574 # Needs to be called with $(eval )
575 #
576 # Even if the performance benifit is negligible on other platforms, keep the
577 # functionality active unless explicitly disabled to exercise it more.
578 #
579 # Initialize FIND_CACHE_DIRS with := to make it a non recursively-expanded variable
|
28 # Setup common utility functions.
29 #
30 ################################################################
31
32 ifndef _MAKEBASE_GMK
33 _MAKEBASE_GMK := 1
34
35 ifeq ($(wildcard $(SPEC)),)
36 $(error MakeBase.gmk needs SPEC set to a proper spec.gmk)
37 endif
38
39 # By defining this pseudo target, make will automatically remove targets
40 # if their recipe fails so that a rebuild is automatically triggered on the
41 # next make invocation.
42 .DELETE_ON_ERROR:
43
44 ##############################
45 # Functions
46 ##############################
47
48 ### Debug functions
49
50 # Prints the name and value of a variable
51 PrintVar = \
52 $(info $(strip $1) >$($(strip $1))<)
53
54 ### Functions for timers
55
56 # Store the build times in this directory.
57 BUILDTIMESDIR=$(OUTPUT_ROOT)/make-support/build-times
58
59 # Record starting time for build of a sub repository.
60 define RecordStartTime
61 $(MKDIR) -p $(BUILDTIMESDIR)
62 $(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)
63 $(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_start_$(strip $1)_human_readable
64 endef
65
66 # Record ending time and calculate the difference and store it in a
67 # easy to read format. Handles builds that cross midnight. Expects
68 # that a build will never take 24 hours or more.
69 define RecordEndTime
70 $(DATE) '+%Y %m %d %H %M %S' | $(NAWK) '{ print $$1,$$2,$$3,$$4,$$5,$$6,($$4*3600+$$5*60+$$6) }' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)
71 $(DATE) '+%Y-%m-%d %H:%M:%S' > $(BUILDTIMESDIR)/build_time_end_$(strip $1)_human_readable
72 $(ECHO) `$(CAT) $(BUILDTIMESDIR)/build_time_start_$(strip $1)` `$(CAT) $(BUILDTIMESDIR)/build_time_end_$(strip $1)` $1 | \
545 ################################################################################
546 # Convenience functions for working around make's limitations with $(filter ).
547 containing = \
548 $(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),$v)))
549 not-containing = \
550 $(strip $(foreach v,$(strip $2),$(if $(findstring $(strip $1),$v),,$v)))
551
552 # Filter out duplicate sub strings while preserving order. Keeps the first occurance.
553 uniq = \
554 $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1)))
555
556 # Return a list of all string elements that are duplicated in $1.
557 dups = \
558 $(strip $(foreach v, $(sort $1), $(if $(filter-out 1, \
559 $(words $(filter $v, $1))), $v)))
560
561 # String equals
562 equals = \
563 $(and $(findstring $(strip $1),$(strip $2)),\
564 $(findstring $(strip $2),$(strip $1)))
565
566 # Remove a whole list of prefixes
567 # $1 - List of prefixes
568 # $2 - List of elements to process
569 remove-prefixes = \
570 $(strip $(if $1,$(patsubst $(firstword $1)%,%,\
571 $(call remove-prefixes,$(filter-out $(firstword $1),$1),$2)),$2))
572
573 ################################################################################
574
575 ifneq ($(DISABLE_CACHE_FIND), true)
576 # In Cygwin, finds are very costly, both because of expensive forks and because
577 # of bad file system caching. Find is used extensively in $(shell) commands to
578 # find source files. This makes rerunning make with no or few changes rather
579 # expensive. To speed this up, these two macros are used to cache the results
580 # of simple find commands for reuse.
581 #
582 # Runs a find and stores both the directories where it was run and the results.
583 # This macro can be called multiple times to add to the cache. Only finds files
584 # with no filters.
585 #
586 # Needs to be called with $(eval )
587 #
588 # Even if the performance benifit is negligible on other platforms, keep the
589 # functionality active unless explicitly disabled to exercise it more.
590 #
591 # Initialize FIND_CACHE_DIRS with := to make it a non recursively-expanded variable
|