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comparison: config/makefiles/autotargets.mk
config/makefiles/autotargets.mk
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:6faefeb9fb42 |
|---|---|
| 1 # -*- makefile -*- | |
| 2 # vim:set ts=8 sw=8 sts=8 noet: | |
| 3 # | |
| 4 # This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 # License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 6 # You can obtain one at http://mozilla.org/MPL/2.0/. | |
| 7 # | |
| 8 | |
| 9 ifndef INCLUDED_AUTOTARGETS_MK #{ | |
| 10 | |
| 11 # Conditional does not wrap the entire file so multiple | |
| 12 # includes will be able to accumulate dependencies. | |
| 13 | |
| 14 ########################################################################### | |
| 15 # AUTO_DEPS - A list of deps/targets drived from other macros. | |
| 16 ########################################################################### | |
| 17 | |
| 18 MKDIR ?= mkdir -p | |
| 19 TOUCH ?= touch | |
| 20 | |
| 21 # declare for local use, rules.mk may not have been loaded | |
| 22 space = $(NULL) $(NULL) | |
| 23 | |
| 24 # Deps will be considered intermediate when used as a pre-requisite for | |
| 25 # wildcard targets. Inhibit their removal, mkdir -p is a standalone op. | |
| 26 .PRECIOUS: %/.mkdir.done | |
| 27 | |
| 28 ######################### | |
| 29 ##---] FUNCTIONS [---## | |
| 30 ######################### | |
| 31 | |
| 32 # Squeeze can be overzealous, restore root for abspath | |
| 33 getPathPrefix =$(if $(filter /%,$(1)),/) | |
| 34 | |
| 35 # Squeeze '//' from the path, easily created by string functions | |
| 36 _slashSqueeze =$(foreach val,$(getargv),$(call getPathPrefix,$(val))$(subst $(space),/,$(strip $(subst /,$(space),$(val))))) | |
| 37 | |
| 38 # Squeeze extraneous directory slashes from the path | |
| 39 # o protect embedded spaces within the path | |
| 40 # o replace //+ sequences with / | |
| 41 slash_strip = \ | |
| 42 $(strip \ | |
| 43 $(subst <--[**]-->,$(space),\ | |
| 44 $(call _slashSqueeze,\ | |
| 45 $(subst $(space),<--[**]-->,$(1))\ | |
| 46 ))) | |
| 47 | |
| 48 # Extract directory path from a dependency file. | |
| 49 mkdir_stem =$(foreach val,$(getargv),$(subst /.mkdir.done,$(NULL),$(val))) | |
| 50 | |
| 51 ## Generate timestamp file for threadsafe directory creation | |
| 52 mkdir_deps =$(foreach dir,$(getargv),$(call slash_strip,$(dir)/.mkdir.done)) | |
| 53 | |
| 54 ####################### | |
| 55 ##---] TARGETS [---## | |
| 56 ####################### | |
| 57 | |
| 58 %/.mkdir.done: # mkdir -p -p => mkdir -p | |
| 59 $(subst $(space)-p,$(null),$(MKDIR)) -p '$(dir $@)' | |
| 60 # Make the timestamp old enough for not being a problem with symbolic links | |
| 61 # targets depending on it. Use Jan 3, 1980 to accomodate any timezone where | |
| 62 # 198001010000 would translate to something older than FAT epoch. | |
| 63 @$(TOUCH) -t 198001030000 '$@' | |
| 64 | |
| 65 # A handful of makefiles are attempting "mkdir dot". | |
| 66 # tbpl/valgrind builds are using this target | |
| 67 # https://bugzilla.mozilla.org/show_bug.cgi?id=837754 | |
| 68 .mkdir.done: | |
| 69 @echo 'WARNING: $(MKDIR) -dot- requested by $(MAKE) -C $(CURDIR) $(MAKECMDGOALS)' | |
| 70 @$(TOUCH) -t 198001030000 '$@' | |
| 71 | |
| 72 INCLUDED_AUTOTARGETS_MK = 1 | |
| 73 endif #} | |
| 74 | |
| 75 | |
| 76 ## Accumulate deps and cleanup | |
| 77 ifneq (,$(GENERATED_DIRS)) | |
| 78 GENERATED_DIRS := $(strip $(sort $(GENERATED_DIRS))) | |
| 79 tmpauto :=$(call mkdir_deps,GENERATED_DIRS) | |
| 80 GENERATED_DIRS_DEPS +=$(tmpauto) | |
| 81 GARBAGE_DIRS +=$(GENERATED_DIRS) | |
| 82 endif | |
| 83 | |
| 84 ################################################################# | |
| 85 # One ring/dep to rule them all: | |
| 86 # config/rules.mk::all target is available by default | |
| 87 # Add $(AUTO_DEPS) as an explicit target dependency when needed. | |
| 88 ################################################################# | |
| 89 | |
| 90 AUTO_DEPS +=$(GENERATED_DIRS_DEPS) | |
| 91 AUTO_DEPS := $(strip $(sort $(AUTO_DEPS))) | |
| 92 | |
| 93 # Complain loudly if deps have not loaded so getargv != $(NULL) | |
| 94 $(call requiredfunction,getargv) |
