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Diffstat (limited to 'build-0.3/bootstrap.make')
| -rw-r--r-- | build-0.3/bootstrap.make | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/build-0.3/bootstrap.make b/build-0.3/bootstrap.make new file mode 100644 index 0000000..44eb57e --- /dev/null +++ b/build-0.3/bootstrap.make @@ -0,0 +1,385 @@ +# file : build/bootstrap.make +# copyright : Copyright (c) 2004-2012 Code Synthesis Tools CC +# license : GNU GPL v2; see accompanying LICENSE file + +# First time bootstrap.make is read +# +ifndef %makefile% + +# Configure make. +# + +# Forces make to delete targets whos rebuild commands failed but +# updated the target. +# +.DELETE_ON_ERROR: + +# Remove all built-in rules. +# +.SUFFIXES: + +ifeq ($(filter -r,$(MAKEFLAGS)),) +MAKEFLAGS += -r +endif + + +# Disable implicit phony misfeature. +# +#ifeq ($(filter --no-implicit-phony,$(MAKEFLAGS)),) +#MAKEFLAGS += --no-implicit-phony +#endif + +# Enable second expansion. +# +.SECONDEXPANSION: + +# Force target. Used to force rule executions. +# +.PHONY: FORCE + + +# Export variables that could be useful for configuration scripts. +# +export bld_root +export MAKE + +%replica% := +%foreign% := +%interactive% := t + +# List of realpath'ed include-once files. +# +%included_files% := + +#$(warning init %included_files%: $(%included_files%)) + +# @@ maybe I should set makefile to bootstrap and restore it at the end. +# This way I will be able to use %makefile% below (instead of _self) and +# also it will be consistent. +# + +# By convention, the makefile name is the second or third last word from +# the end. If it is the third, then the second one should be end with +# bootstrap.make +# +%makefile% := $(subst $(lastword $(MAKEFILE_LIST)),,$(MAKEFILE_LIST)) +ifneq ($(filter %bootstrap.make,$(lastword $(%makefile%))),) +%makefile% := $(subst $(lastword $(%makefile%)),,$(%makefile%)) +endif +%makefile% := $(abspath $(lastword $(%makefile%))) + +%makefile_realpath% := $(realpath $(%makefile%)) + + +# +# include facility +# + +# Execute makefile search algorithm. Return abspath of the makefile if found +# and empty string otherwise. +# +%frame_exclude% += include-find-makefile +define include-find-makefile +$(if $(wildcard $1),\ +$(abspath $1),\ +$(if $(filter-out /%,$1),\ +$(call include-search-dirs,$1,$(.INCLUDE_DIRS)))) +endef + +# Search for $1 in the list of directoris $2 +# +%frame_exclude% += include-search-dirs +define include-search-dirs +$(if $(strip $2),\ +$(if $(wildcard $(firstword $2)/$1),\ +$(abspath $(firstword $2)/$1),\ +$(call include-search-dirs,$1,$(wordlist 2,$(words $2),$2)))) +endef + +# Test if $1 is a 'foreign' makefile, i.e., does not reside in +# src_root, out_root, or bld_root. Use shadows for src and out +# roots to catch cases where these were reset before inclusion. +# This happens in import stubs. +# +%frame_exclude% += include-test-foreign +define include-test-foreign +$(if $(%foreign%),t,$(if $(filter $(bld_root)/% $(src_root_shadow)/% $(out_root_shadow)/%,$1),,t)) +endef + +%frame_exclude% += include-body +define include-body +%interactive% := +%makefile% := $(call include-find-makefile,$2) +%makefile_realpath% := $$(realpath $$(%makefile%)) +%foreign% := $$(call include-test-foreign,$$(%makefile%)) + +$1 $$(if $$(%makefile%),$$(%makefile%),$2) + +%makefile_realpath% := $3 +%makefile% := $4 +%interactive% := $5 +%foreign% := $6 +endef + +%frame_exclude% += include +define include +$(eval $(foreach f,$1,\ + $(call include-body,\ + include,$f,$(%makefile_realpath%),$(%makefile%),$(%interactive%),$(%foreign%)))) +endef + +%frame_exclude% += -include +define -include +$(eval $(foreach f,$1,\ + $(call include-body,\ + -include,$f,$(%makefile_realpath%),$(%makefile%),$(%interactive%),$(%foreign%)))) +endef + + +# +# include-once +# + +# This one simply delegates to the include directive to get the +# error message. +# +# $1 : include/-include +# $2 : file +# +%frame_exclude% += include-once-failed-body +define include-once-failed-body +$1 $2 +endef + +# +# $1 : include/-include +# $2 : file +# +%frame_exclude% += include-once-file-body +define include-once-file-body +%interactive% := +%makefile% := $2 +%makefile_realpath% := $(realpath $2) +%foreign% := $$(call include-test-foreign,$$(%makefile%)) + +%included_files% += $$(%makefile_realpath%) + +$1 $2 + +%makefile_realpath% := $3 +%makefile% := $4 +%interactive% := $5 +%foreign% := $6 +endef + + +%frame_exclude% += include-once-file-filter +define include-once-file-filter +$(if $(filter $(realpath $2),$(%included_files%)),,\ + $(call include-once-file-body,\ + $1,$2,$(%makefile_realpath%),$(%makefile%),$(%interactive%),$(%foreign%))) +endef + +# +# $1 : include/-include +# $2 : file +# $6 : value +# + +%frame_exclude% += include-once-value-body +define include-once-value-body +%interactive% := +%makefile% := $2 +%makefile_realpath% := $(realpath $2) +%foreign% := $$(call include-test-foreign,$$(%makefile%)) + +%include_once_$$(%makefile_realpath%)% += $7 + +$1 $2 + +%makefile_realpath% := $3 +%makefile% := $4 +%interactive% := $5 +%foreign% := $6 +endef + + +%frame_exclude% += include-once-value-filter +define include-once-value-filter +$(if $(filter $3,$(value %include_once_$(realpath $2)%)),,\ + $(call include-once-value-body,\ + $1,$2,$(%makefile_realpath%),$(%makefile%),$(%interactive%),$(%foreign%),$3)) +endef + + +# $1 - include/-include +# $2 - abspath or empty if not found +# $3 - orginal path +# $4 - value [optional] +# +%frame_exclude% += include-once-filter +define include-once-filter +$(if $2,\ +$(if $4,\ +$(call include-once-value-filter,$1,$2,$4),\ +$(call include-once-file-filter,$1,$2)),\ +$(call include-once-failed-body,$1,$3)) +endef + +%frame_exclude% += include-once +define include-once +$(eval $(call include-once-filter,\ +include,$(call include-find-makefile,$1),$1,$(strip $2))) +endef + +%frame_exclude% += -include-once +define -include-once +$(eval $(call include-once-filter,\ +-include,$(call include-find-makefile,$1),$1,$(strip $2))) +endef + + +#$(warning include facility is up) + +endif # %makefile% + +# +# +bld_root := $(abspath $(dir $(lastword $(MAKEFILE_LIST)))) + + +# initialize {src,out}_{root,base} +# +%frame_exclude% += find-bootstrap-base +define find-bootstrap-base +$(if $(findstring $(abspath $(lastword $1)),$(%makefile%)),$2,\ +$(call find-bootstrap-base,\ +$(wordlist 1,$(words $(wordlist 2,$(words $1),$1)),$1),\ +$(lastword $1))) +endef + +src_root := $(abspath $(dir $(call find-bootstrap-base,$(MAKEFILE_LIST)))..) +src_base := $(abspath $(dir $(%makefile%))) + +ifneq ($(src_root),$(src_base)) + +# In recursive make invocation, out_root may come from the environment +# in which case we need to override it. +# +ifneq ($(origin out_root),file) + out_root := $(abspath $(patsubst \ + %$(subst $(src_root)/,,$(src_base)),%,$(CURDIR))) +endif + +out_base := $(out_root)/$(subst $(src_root)/,,$(src_base)) + +else + +# In recursive make invocation, out_root may come from the environment +# in which case we need to override it. +# +ifneq ($(origin out_root),file) + out_root := $(abspath $(CURDIR)) +endif + +out_base := $(out_root) + +endif + +scf_root := $(src_root)/build +dcf_root := $(out_root)/build + +src_root_shadow := $(src_root) +out_root_shadow := $(out_root) + +$(out_root)/%: export out_root := $(out_root) +$(out_root)/%: export src_root := $(src_root) +$(out_root)/%: export scf_root := $(scf_root) +$(out_root)/%: export dcf_root := $(dcf_root) +$(out_root)/%: export project_name := $(project_name) + +# @@ Why do I need out_root here? +# +$(out_base)/%: out_root := $(out_root) +$(out_base)/%: export out_base := $(out_base) +$(out_base)/%: export src_base := $(src_base) + +ifdef build_debug + +$(warning "bld root: $(bld_root)") +$(warning "scf root: $(scf_root)") +$(warning "dcf root: $(dcf_root)") +$(warning "src root: $(src_root)") +$(warning "src base: $(src_base)") +$(warning "out root: $(out_root)") +$(warning "out base: $(out_base)") + +endif + +#$(warning paths are set) + +# frame facility +# +$(call include-once,$(bld_root)/frame.make) + +# import facility +# +$(call include-once,$(bld_root)/import.make) + +# Load some common facilities. +# +$(call include-once,$(bld_root)/literals.make) +$(call include-once,$(bld_root)/message.make) +$(call include-once,$(bld_root)/dir.make) + + +# Static configuration. +# +$(call include,$(bld_root)/configuration-static.make) + +ifneq ($(bld_root),$(scf_root)) +$(call -include,$(scf_root)/configuration-static.make) +endif + +# `disfigure' target. +# +.PHONY: disfigure +.PHONY: $(dcf_root)/.disfigure $(out_root)/.disfigure + +disfigure:: $(build_absolute_clean_target) +disfigure:: $(dcf_root)/.disfigure +disfigure:: $(out_root)/.disfigure + +ifneq ($(out_root),$(out_base)) +.PHONY: $(out_base)/.disfigure +$(out_root)/.disfigure:: $(out_base)/.disfigure +endif + +# Clean up generated makefiles. +# +ifndef %foreign% +ifneq ($(out_root),$(src_root)) +$(out_base)/.disfigure:: + $(call message, rm $$1,rm -f $$1,$(out_base)/makefile) +endif +endif + +# Dynamic configuration (interactive check is to make sure we only do +# this once). +# +ifdef %interactive% +ifneq ($(out_root),$(src_root)) + +$(call -include,$(dcf_root)/bootstrap-dynamic.make) + +$(dcf_root)/bootstrap-dynamic.make: | $(dcf_root)/. + $(call message,,echo "src_root := $(src_root)" >$@) + +$(dcf_root)/.disfigure:: + $(call message, rm $$1,rm -f $$1,$(dcf_root)/bootstrap-dynamic.make) +endif +endif + +ifeq ($(.DEFAULT_GOAL),disfigure) +.DEFAULT_GOAL := +endif |