mirror of
https://github.com/genodelabs/genode.git
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cbae9bc1c8
This patch simplifies the use of ccache with the build system. Up until now, each developer had to set up the ccache hooks manually, adjust the PATH variable, and customize the etc/tools.conf in each build directory. With the patch, ccache can be enabled by un-commenting a single line in the etc/build.conf file. Fixes #4004
154 lines
4.1 KiB
Makefile
Executable File
154 lines
4.1 KiB
Makefile
Executable File
#!/usr/bin/make -f
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#
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# \brief Prepare Genode build directory
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# \author Christian Helmuth, Norman Feske
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# \date 2008-08-14
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#
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MAKEOVERRIDES =
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PLATFORM = $(MAKECMDGOALS)
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PLATFORMS = arm_v6 arm_v7a arm_v8a riscv x86_32 x86_64 linux
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usage:
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@echo
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@echo "Tool for preparing Genode build directories"
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@echo
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@echo "usage:"
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@echo
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@echo " create_builddir <platform> [BUILD_DIR=<build-dir>]"
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@echo
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@echo " <platform> can be:"
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@$(foreach PLAT,$(PLATFORMS), \
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echo " '$(PLAT)'";)
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@echo
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@echo " The definition of BUILD_DIR is optional. If specified,"
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@echo " <build-dir> is the location of the build directory to create."
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@echo " If not specified, the build directory will be created at"
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@echo " <genode-dir>/build/<platform>."
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@echo
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#
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# Determine Genode base directory based on the known location of the
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# 'create_builddir' tool within the Genode source tree
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#
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GENODE_DIR ?= $(realpath $(dir $(MAKEFILE_LIST))/..)
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#
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# Define default location of the build directory if not explicitly specified
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#
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BUILD_DIR ?= $(GENODE_DIR)/build/$(PLATFORM)
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#
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# Sanity checks
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#
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ifneq ($(PLATFORM),)
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#
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# Check if platform is unknown
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#
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ifeq ($(filter $(PLATFORM),$(PLATFORMS)),)
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$(error Bad platform argument '$(PLATFORM)')
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endif
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#
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# Check if build directory exists already
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#
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ifneq ($(wildcard $(BUILD_DIR)),)
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$(error Build directory '$(BUILD_DIR)' already exists)
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endif
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endif
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SHELL := bash
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#
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# Convert GENODE_DIR to an absolute directory because the user
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# may have specified a '~'-relative location or a pwd-relative
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# location.
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#
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GENODE_ABS_DIR := $(realpath $(shell echo $(GENODE_DIR)))
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#
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# Define absolute path to the contrib directory as written to the
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# 'etc/build.conf' file. We use 'abs_path' instead of 'realpath' because the
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# contrib directory may not exist when the build directory is created. In this
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# case, 'realpath' would return an empty string.
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#
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ifeq ($(CONTRIB_DIR),)
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CONTRIB_ABS_DIR := $$(GENODE_DIR)/contrib
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else
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CONTRIB_ABS_DIR := $(abspath $(shell echo $(CONTRIB_DIR)))
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endif
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$(BUILD_DIR)/etc:
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@mkdir -p $@
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BUILD_CONF_X86 := run_x86 run_boot_dir repos repos_x86
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BUILD_CONF_ARM_V6 := run_arm_v6 run_boot_dir repos
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BUILD_CONF_ARM_V7 := run_arm_v7 run_boot_dir repos
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BUILD_CONF(arm_v6) := $(BUILD_CONF_ARM_V6)
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BUILD_CONF(arm_v7a) := $(BUILD_CONF_ARM_V7)
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BUILD_CONF(arm_v8a) := run_arm_v8 run_boot_dir repos
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BUILD_CONF(riscv) := run_riscv run_boot_dir repos
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BUILD_CONF(x86_32) := run_x86_32 $(BUILD_CONF_X86)
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BUILD_CONF(x86_64) := run_x86_64 $(BUILD_CONF_X86)
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BUILD_CONF(linux) := run_kernel_linux repos
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message: $(BUILD_DIR)/etc/build.conf
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$(BUILD_DIR)/etc/build.conf:
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@echo "GENODE_DIR := $(GENODE_ABS_DIR)" > $@
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@echo 'BASE_DIR := $$(GENODE_DIR)/repos/base' >> $@
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@echo 'CONTRIB_DIR := $(CONTRIB_ABS_DIR)' >> $@
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@echo >> $@
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@for i in make_j ccache run; do \
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cat $(GENODE_DIR)/tool/builddir/build.conf/$$i; done >> $@
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@for i in ${BUILD_CONF(${PLATFORM})}; do \
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cat $(GENODE_DIR)/tool/builddir/build.conf/$$i; done >> $@
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message: $(BUILD_DIR)/Makefile
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$(BUILD_DIR)/Makefile:
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@ln -sf $(GENODE_ABS_DIR)/tool/builddir/build.mk $@
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$(BUILD_DIR)/etc/build.conf: $(BUILD_DIR)/etc
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$(BUILD_DIR)/etc/specs.conf: $(BUILD_DIR)/etc
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#
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# Detect host CPU architecture (needed for creating Linux build directory that
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# matches the host system)
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#
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UNAME_MACHINE := $(shell uname -m)
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SPEC_ARCH(i686) := x86_32
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SPEC_ARCH(x86_64) := x86_64
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SPEC_ARCH(armv6l) := armv_v6
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SPEC_ARCH(armv7l) := armv_v7
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HOST_SPEC_ARCH := ${SPEC_ARCH(${UNAME_MACHINE})}
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#
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# SPECS definitions
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#
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SPECS(arm_v6) := arm_v6
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SPECS(arm_v7a) := arm_v7a
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SPECS(arm_v8a) := arm_v8a
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SPECS(riscv) := riscv
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SPECS(x86_32) := x86_32
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SPECS(x86_64) := x86_64
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SPECS(linux) := $(HOST_SPEC_ARCH)
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ifneq (${SPECS(${PLATFORM})},)
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message: $(BUILD_DIR)/etc/specs.conf
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$(BUILD_DIR)/etc/specs.conf:
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@echo "SPECS += ${SPECS(${PLATFORM})}" > $@
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endif
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$(PLATFORM): message
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message:
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@echo "Successfully created build directory at $(BUILD_DIR)."
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@echo "Please adjust $(BUILD_DIR)/etc/build.conf according to your needs."
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.PHONY: $(PLATFORM)
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