c99dd8fdf8
The bash-builtin 'pwd' command uses the 'st_dev' and 'st_ino' members of the 'stat' struct to compare the path from the 'PWD' environment variable with the path returned by 'getcwd()'. These members don't get set correctly in Noux and therefore the 'pwd' command sometimes returns wrong results when building Genode in Noux. With this patch the 'CURDIR' make variable gets used instead of calling 'pwd'. Fixes #454.
289 lines
8.8 KiB
Makefile
289 lines
8.8 KiB
Makefile
#
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# \brief Front end to the Genode build system
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# \author Norman Feske
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# \date 2011-08-04
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#
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#
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# The operation of the build system can be tuned using the following variables,
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# which can be specified at the command line or supplied via the
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# 'etc/build.conf' file.
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#
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# BASE_DIR - this directory points to Genode's 'base' repository
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# REPOSITORIES - list of directories incorporared into the build process
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# VERBOSE - variable that controls the verboseness of the build process
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#
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# By default, compiler messages are not displayed. If you are
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# interested in these messages set this variable to nothing.
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# ('VERBOSE=')
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#
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# VERBOSE_MK - variable that controls the verboseness of make invocations
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# VERBOSE_DIR - variable that controls the verboseness of changing directories
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#
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# Using this variable, you can enable the make messages printed
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# when changing directories. To enable the messages, set the
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# variable to nothing.
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#
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# LIB_CACHE_DIR - location of the library build cache
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#
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# This variable defines the place for the library build cache.
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# Normally, the libcache is located at 'var/libcache' and
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# there is no need to change it.
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#
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##
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## Define global configuration variables
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##
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-include etc/build.conf
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BUILD_BASE_DIR := $(CURDIR)
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INSTALL_DIR := $(CURDIR)/bin
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export BASE_DIR ?= ../base
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export REPOSITORIES ?= $(BASE_DIR:%base=%base-linux) $(BASE_DIR)
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export VERBOSE ?= @
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export VERBOSE_DIR ?= --no-print-directory
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export VERBOSE_MK ?= @
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export LIB_CACHE_DIR ?= $(BUILD_BASE_DIR)/var/libcache
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export LIB_PROGRESS_LOG ?= $(BUILD_BASE_DIR)/progress.log
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export LIB_DEP_FILE ?= var/libdeps
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export ECHO ?= echo -e
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#
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# Convert user-defined directories to absolute directories
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#
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# The 'echo' shell command expands '~' characters to the home directory,
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# 'realpath' converts relative path names to absolute.
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#
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REPOSITORIES := $(realpath $(shell echo $(REPOSITORIES)))
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BASE_DIR := $(realpath $(shell echo $(BASE_DIR)))
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#
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# Configure shell program before executing any shell commands. On Ubuntu the
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# standard shell is dash, which breaks colored output via its built-in echo
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# command.
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#
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export SHELL := $(shell which bash)
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select_from_repositories = $(firstword $(foreach REP,$(REPOSITORIES),$(wildcard $(REP)/$(1))))
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include $(BASE_DIR)/mk/global.mk
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export LIBGCC_INC_DIR = $(shell dirname `$(CUSTOM_CXX_LIB) -print-libgcc-file-name`)/include
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#
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# Find out about the target directories to build
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#
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DST_DIRS := $(filter-out all clean bin cleanall again run/%,$(MAKECMDGOALS))
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ifeq ($(MAKECMDGOALS),)
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DST_DIRS := *
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endif
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#
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# Default rule: build all directories specified as make arguments
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#
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all $(DST_DIRS): gen_deps_and_build_targets
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@true
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-include $(call select_from_repositories,etc/specs.conf)
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-include $(BUILD_BASE_DIR)/etc/specs.conf
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export SPEC_FILES := $(foreach SPEC,$(SPECS),$(call select_from_repositories,mk/spec-$(SPEC).mk))
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include $(SPEC_FILES)
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export SPECS
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##
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## First stage: generate library dependencies
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##
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#
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# Reset library-build log and library-dependency file
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#
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# The 'progress' file contains the names of the already processed libraries
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# of the current build process. Before considering to process any library,
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# the build system checks if the library is already present in the 'progress'
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# file and, if yes, skips it.
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#
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.PHONY: init_progress_log
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init_progress_log:
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@echo "#" > $(LIB_PROGRESS_LOG)
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@echo "# Library build progress log - generated by dep_prg.mk and dep_lib.mk" >> $(LIB_PROGRESS_LOG)
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@echo "#" >> $(LIB_PROGRESS_LOG)
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.PHONY: init_libdep_file
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init_libdep_file:
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@echo "checking library dependencies..."
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@(echo "#"; \
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echo "# Library dependencies for build '$(DST_DIRS)'"; \
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echo "#"; \
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echo ""; \
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echo "export SPEC_FILES := \\"; \
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for i in $(SPEC_FILES); do \
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echo " $$i \\"; done; \
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echo ""; \
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echo "LIB_CACHE_DIR = $(LIB_CACHE_DIR)"; \
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echo "BASE_DIR = $(realpath $(BASE_DIR))"; \
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echo "VERBOSE ?= $(VERBOSE)"; \
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echo "VERBOSE_MK ?= $(VERBOSE_MK)"; \
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echo "VERBOSE_DIR ?= $(VERBOSE_DIR)"; \
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echo "INSTALL_DIR ?= $(INSTALL_DIR)"; \
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echo "SHELL ?= $(SHELL)"; \
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echo "MKDIR ?= mkdir"; \
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echo ""; \
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echo "all:"; \
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echo " @true # prevent nothing-to-be-done message"; \
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echo "") > $(LIB_DEP_FILE)
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#
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# We check if any target.mk files exist in the specified directories within
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# any of the repositories listed in the 'REPOSITORIES' variable.
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#
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$(dir $(LIB_DEP_FILE)):
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@mkdir -p $@
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#
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# Find all 'target.mk' files located within any of the specified subdirectories
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# ('DST_DIRS') and any repository. The 'sort' is used to remove duplicates.
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#
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TARGETS_TO_VISIT := $(shell find $(REPOSITORIES:=/src) -false \
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$(foreach DST,$(DST_DIRS), \
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-or -path "*/src/$(DST)/**target.mk" \
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-printf " %P "))
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TARGETS_TO_VISIT := $(sort $(TARGETS_TO_VISIT))
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#
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# Perform sanity check for non-existing targets being specified at the command
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# line.
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#
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MISSING_TARGETS := $(strip \
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$(foreach DST,$(DST_DIRS),\
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$(if $(filter $(DST)/%,$(TARGETS_TO_VISIT)),,$(DST))))
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ifneq ($(MAKECMDGOALS),)
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ifneq ($(MISSING_TARGETS),)
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init_libdep_file: error_missing_targets
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error_missing_targets:
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@for target in $(MISSING_TARGETS); do \
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echo "Error: target '$$target' does not exist"; done
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@false;
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endif
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endif
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#
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# The procedure of collecting library dependencies is realized as a single
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# rule to gain maximum performance. If we invoked a rule for each target,
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# we would need to spawn one additional shell per target, which would take
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# 10-20 percent more time.
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#
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traverse_dependencies: $(dir $(LIB_DEP_FILE)) init_libdep_file init_progress_log
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$(VERBOSE_MK) \
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for target in $(TARGETS_TO_VISIT); do \
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for rep in $(REPOSITORIES); do \
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test -f $$rep/src/$$target || continue; \
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$(MAKE) $(VERBOSE_DIR) -f $(BASE_DIR)/mk/dep_prg.mk \
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REP_DIR=$$rep TARGET_MK=$$rep/src/$$target \
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BUILD_BASE_DIR=$(BUILD_BASE_DIR) \
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SHELL=$(SHELL) \
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DARK_COL="$(DARK_COL)" DEFAULT_COL="$(DEFAULT_COL)"; \
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break; \
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done; \
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done
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.PHONY: $(LIB_DEP_FILE)
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$(LIB_DEP_FILE): traverse_dependencies
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##
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## Second stage: build targets based on the result of the first stage
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##
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$(INSTALL_DIR):
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$(VERBOSE)mkdir -p $@
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.PHONY: gen_deps_and_build_targets
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gen_deps_and_build_targets: $(INSTALL_DIR) $(LIB_DEP_FILE)
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@$(VERBOSE_MK)$(MAKE) $(VERBOSE_DIR) -f $(LIB_DEP_FILE) all
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.PHONY: again
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again: $(INSTALL_DIR)
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@$(VERBOSE_MK)$(MAKE) $(VERBOSE_DIR) -f $(LIB_DEP_FILE) all
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##
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## Rules for running automated test cases
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##
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RUN_OPT ?=
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RUN_ENV := $(call select_from_repositories,run/env)
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ifeq ($(RUN_ENV),)
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run: run_no_env
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endif
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run_no_env:
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@echo "Error: There exists no execution environment this platform"
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@false
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# helper for run/% rule
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RUN_SCRIPT = $(call select_from_repositories,run/$*.run)
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#
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# Read tools configuration to obtain the cross-compiler prefix passed
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# to the run script.
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#
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-include $(call select_from_repositories,etc/tools.conf)
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run/%: $(call select_from_repositories,run/%.run) $(RUN_ENV)
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$(VERBOSE)test -f "$(RUN_SCRIPT)" || (echo "Error: No run script for $*"; exit -1)
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$(VERBOSE)$(GENODE_DIR)/tool/run --genode-dir $(GENODE_DIR) \
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--name $* \
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--specs "$(SPECS)" \
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--repositories "$(REPOSITORIES)" \
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--cross-dev-prefix "$(CROSS_DEV_PREFIX)" \
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--qemu-args "$(QEMU_OPT)" \
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--include $(RUN_ENV) $(RUN_OPT) \
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--include $(RUN_SCRIPT)
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##
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## Clean rules
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##
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#
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# For cleaning, visit each directory for that a corresponding target.mk
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# file exists in the source tree. For each such directory, we call
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# the single_target rule.
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#
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clean_targets:
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$(VERBOSE_MK)for d in `$(GNU_FIND) -mindepth 1 -type d | $(TAC) | sed "s/^..//"`; do \
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for r in $(REPOSITORIES); do \
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test -f $$r/src/$$d/target.mk && \
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$(MAKE) $(VERBOSE_DIR) clean \
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-C $$d \
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-f $(BASE_DIR)/mk/prg.mk \
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BUILD_BASE_DIR=$(BUILD_BASE_DIR) \
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PRG_REL_DIR=$$d \
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SHELL=$(SHELL) \
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REP_DIR=$$r || \
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true; \
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done; \
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done
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clean_libcache:
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$(VERBOSE)rm -rf var/libcache
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clean_run:
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$(VERBOSE)rm -rf var/run
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clean_gen_files:
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$(VERBOSE)rm -f $(LIB_PROGRESS_LOG)
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$(VERBOSE)rm -f $(LIB_DEP_FILE)
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clean_install_dir:
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$(VERBOSE)(test -d $(INSTALL_DIR) && find $(INSTALL_DIR) -type l -not -readable -delete) || true
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clean_empty_dirs: clean_targets clean_libcache clean_run clean_gen_files clean_install_dir
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$(VERBOSE)$(GNU_FIND) . -depth -type d -empty -delete
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clean cleanall: clean_empty_dirs
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