client.mk

   1 # -*- makefile -*-
   2 # vim:set ts=8 sw=8 sts=8 noet:
   3 # This Source Code Form is subject to the terms of the Mozilla Public
   4 # License, v. 2.0. If a copy of the MPL was not distributed with this
   5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   6
   7 # Defines main targets for driving the Firefox build system.
   8 #
   9 # This make file should not be invoked directly. Instead, use
  10 # `mach` (likely `mach build`) for invoking the build system.
  11 #
  12 # Options:
  13 #   MOZ_OBJDIR           - Destination object directory
  14 #   MOZ_MAKE_FLAGS       - Flags to pass to $(MAKE)
  15 #
  16 #######################################################################
  17 # Defines
  18
  19 ifdef MACH
  20 ifndef NO_BUILDSTATUS_MESSAGES
  21 define BUILDSTATUS
  22 @echo 'BUILDSTATUS $1'
  23
  24 endef
  25 endif
  26 endif
  27
  28
  29 CWD := $(CURDIR)
  30
  31 ifeq "$(CWD)" "/"
  32 CWD   := /.
  33 endif
  34
  35 PYTHON ?= $(shell which python2.7 > /dev/null 2>&1 && echo python2.7 || echo python)
  36
  37 ####################################
  38 # Load mozconfig Options
  39
  40 include $(OBJDIR)/.mozconfig-client-mk
  41
  42 ifdef MOZ_PARALLEL_BUILD
  43   MOZ_MAKE_FLAGS := $(filter-out -j%,$(MOZ_MAKE_FLAGS))
  44   MOZ_MAKE_FLAGS += -j$(MOZ_PARALLEL_BUILD)
  45 endif
  46
  47 # Automatically add -jN to make flags if not defined. N defaults to number of cores.
  48 ifeq (,$(findstring -j,$(MOZ_MAKE_FLAGS)))
  49   cores=$(shell $(PYTHON) -c 'import multiprocessing; print(multiprocessing.cpu_count())')
  50   MOZ_MAKE_FLAGS += -j$(cores)
  51 endif
  52
  53 ifdef MOZ_AUTOMATION
  54 ifeq (4.0,$(firstword $(sort 4.0 $(MAKE_VERSION))))
  55 MOZ_MAKE_FLAGS += --output-sync=line
  56 endif
  57 endif
  58
  59 MOZ_MAKE = $(MAKE) $(MOZ_MAKE_FLAGS) -C $(OBJDIR)
  60
  61 # 'configure' scripts generated by autoconf.
  62 CONFIGURES := $(TOPSRCDIR)/configure
  63 CONFIGURES += $(TOPSRCDIR)/js/src/configure
  64
  65 #######################################################################
  66 # Rules
  67
  68 # The default rule is build
  69 build::
  70
  71 ifndef MACH
  72 $(error client.mk must be used via `mach`. Try running \
  73 `./mach $(firstword $(MAKECMDGOALS) $(.DEFAULT_GOAL))`)
  74 endif
  75
  76 # In automation, manage an sccache daemon. The starting of the server
  77 # needs to be in a make file so sccache inherits the jobserver.
  78 ifdef MOZBUILD_MANAGE_SCCACHE_DAEMON
  79 build::
  80         # Terminate any sccache server that might still be around.
  81         -$(MOZBUILD_MANAGE_SCCACHE_DAEMON) --stop-server > /dev/null 2>&1
  82         # Start a new server, ensuring it gets the jobserver file descriptors
  83         # from make (but don't use the + prefix when make -n is used, so that
  84         # the command doesn't run in that case)
  85         mkdir -p $(UPLOAD_PATH)
  86         $(if $(findstring n,$(filter-out --%, $(MAKEFLAGS))),,+)env RUST_LOG=sccache=debug SCCACHE_ERROR_LOG=$(UPLOAD_PATH)/sccache.log $(MOZBUILD_MANAGE_SCCACHE_DAEMON) --start-server
  87 endif
  88
  89 ####################################
  90 # Configure
  91
  92 $(CONFIGURES): %: %.in
  93         @echo Generating $@
  94         cp -f $< $@
  95         chmod +x $@
  96
  97 CONFIGURE_ENV_ARGS += \
  98   MAKE='$(MAKE)' \
  99   $(NULL)
 100
 101 # configure uses the program name to determine @srcdir@. Calling it without
 102 #   $(TOPSRCDIR) will set @srcdir@ to "."; otherwise, it is set to the full
 103 #   path of $(TOPSRCDIR).
 104 ifeq ($(TOPSRCDIR),$(OBJDIR))
 105   CONFIGURE = ./configure
 106 else
 107   CONFIGURE = $(TOPSRCDIR)/configure
 108 endif
 109
 110 configure:: $(CONFIGURES)
 111         $(call BUILDSTATUS,TIERS configure)
 112         $(call BUILDSTATUS,TIER_START configure)
 113         @echo cd $(OBJDIR);
 114         @echo $(CONFIGURE) $(CONFIGURE_ARGS)
 115         @cd $(OBJDIR) && $(CONFIGURE_ENV_ARGS) $(CONFIGURE) $(CONFIGURE_ARGS) \
 116           || ( echo '*** Fix above errors and then restart with\
 117                "./mach build"' && exit 1 )
 118         @touch $(OBJDIR)/Makefile
 119         $(call BUILDSTATUS,TIER_FINISH configure)
 120
 121 ####################################
 122 # Build it
 123
 124 build::
 125         +$(MOZ_MAKE)
 126
 127 ifdef MOZ_AUTOMATION
 128 build::
 129         +$(MOZ_MAKE) automation/build
 130 endif
 131
 132 # This makefile doesn't support parallel execution. It does pass
 133 # MOZ_MAKE_FLAGS to sub-make processes, so they will correctly execute
 134 # in parallel.
 135 .NOTPARALLEL:
 136
 137 .PHONY: \
 138     build \
 139     configure