package/environment-setup: new package
Install an helper script to setup a build environment based on Buildroot. It's useful when a developer wants to use a Buildroot generated SDK to build an external project. Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com> Tested-by: Michael Trimarchi <michael@amarulasolutions.com> Tested-by: Adam Duskett <aduskett@gmail.com> Signed-off-by: Maury Anderson <maury.anderson@collins.com> Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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@ -32,3 +32,16 @@ the tarball (e.g. because you will just be moving the +host+ directory,
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or will be generating the tarball on your own), Buildroot also allows
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you to just prepare the SDK with +make prepare-sdk+ without actually
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generating a tarball.
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For your convenience, by selecting the option
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+BR2_PACKAGE_HOST_ENVIRONMENT_SETUP+, you can get a
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+setup-environment+ script installed in +output/host/+ and therefore
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in your SDK. This script can be sourced with
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+. your/sdk/path/environment-setup+ to export a number of environment
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variables that will help cross-compile your projects using the
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Buildroot SDK: the +PATH+ will contain the SDK binaries, standard
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_autotools_ variables will be defined with the appropriate values, and
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+CONFIGURE_FLAGS+ will contain basic +./configure+ options to
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cross-compile _autotools_ projects. Note however that once this script
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is sourced, the environment is setup only for cross-compilation, and
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no longer for native compilation.
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@ -19,6 +19,7 @@ menu "Host utilities"
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source "package/dtc/Config.in.host"
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source "package/e2fsprogs/Config.in.host"
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source "package/e2tools/Config.in.host"
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source "package/environment-setup/Config.in.host"
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source "package/erofs-utils/Config.in.host"
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source "package/eudev/Config.in.host"
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source "package/exfatprogs/Config.in.host"
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package/environment-setup/Config.in.host
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package/environment-setup/Config.in.host
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@ -0,0 +1,6 @@
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config BR2_PACKAGE_HOST_ENVIRONMENT_SETUP
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bool "host environment-setup"
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help
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Install an helper script to setup a build environment
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based on Buildroot. It's useful when you export an sdk
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and want to use Buildroot to build an external project.
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package/environment-setup/environment-setup
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package/environment-setup/environment-setup
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cat <<'EOF'
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_ _ _ _ _
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| |__ _ _(_) | __| |_ __ ___ ___ | |_
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| '_ \| | | | | |/ _` | '__/ _ \ / _ \| __|
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| |_) | |_| | | | (_| | | | (_) | (_) | |_
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|_.__/ \__,_|_|_|\__,_|_| \___/ \___/ \__|
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Making embedded Linux easy!
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Some tips:
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* PATH now contains the SDK utilities
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* Standard autotools variables (CC, LD, CFLAGS) are exported
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* To configure do "./configure $CONFIGURE_FLAGS"
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EOF
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SDK_PATH=$(dirname $(realpath "${BASH_SOURCE[0]}"))
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package/environment-setup/environment-setup.mk
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package/environment-setup/environment-setup.mk
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################################################################################
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#
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# environment-setup
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#
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################################################################################
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ENVIRONMENT_SETUP_FILE = $(HOST_DIR)/environment-setup
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define HOST_ENVIRONMENT_SETUP_INSTALL_CMDS
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cp package/environment-setup/environment-setup $(ENVIRONMENT_SETUP_FILE)
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for var in $(TARGET_CONFIGURE_OPTS); do \
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printf "export \"$$var\"\n" >> $(ENVIRONMENT_SETUP_FILE); \
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done
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printf "export \"CROSS_COMPILE=$(TARGET_CROSS)\"\n" >> $(ENVIRONMENT_SETUP_FILE)
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printf "export \"CONFIGURE_FLAGS=--target=$(GNU_TARGET_NAME) \
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--host=$(GNU_TARGET_NAME) \
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--build=$(GNU_HOST_NAME) \
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--prefix=/usr \
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--exec-prefix=/usr \
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--sysconfdir=/etc \
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--localstatedir=/var \
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--program-prefix=\"\n" >> $(ENVIRONMENT_SETUP_FILE)
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$(SED) 's%$(HOST_DIR)%\$$SDK_PATH%g' \
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-e 's%$(HOST_DIR)/bin/%%g' \
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-e '/^export "PATH=/c\' \
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$(ENVIRONMENT_SETUP_FILE)
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printf "export \"PATH=\$$SDK_PATH/bin:\$$SDK_PATH/sbin:\$$PATH\"\n" \
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>> $(ENVIRONMENT_SETUP_FILE)
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endef
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$(eval $(host-generic-package))
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