[Buildroot] [PATCH] package/environment-setup: add better kernel handling
From: Angelo Compagnucci <hidden>
Date: 2020-11-09 16:58:03
Exporting ARCH and KERNELDIR makes easier to compile an external kernel or out of tree kernel modules. Signed-off-by: Angelo Compagnucci <redacted> --- package/environment-setup/environment-setup | 1 + package/environment-setup/environment-setup.mk | 5 +++++ 2 files changed, 6 insertions(+)
diff --git a/package/environment-setup/environment-setup b/package/environment-setup/environment-setup
index 813aa01c7a..e9bc36fdd0 100644
--- a/package/environment-setup/environment-setup
+++ b/package/environment-setup/environment-setup@@ -10,6 +10,7 @@ cat <<'EOF' Some tips: * PATH now contains the SDK utilities * Standard autotools variables (CC, LD, CFLAGS) are exported +* Kernel compilation variables (ARCH, CROSS_COMPILE, KERNELDIR) are exported * To configure do "./configure $CONFIGURE_FLAGS" or use the "configure" alias * To build CMake-based projects, use the "cmake" alias
diff --git a/package/environment-setup/environment-setup.mk b/package/environment-setup/environment-setup.mk
index fb87c6f0b7..fcad013f0d 100644
--- a/package/environment-setup/environment-setup.mk
+++ b/package/environment-setup/environment-setup.mk@@ -11,6 +11,7 @@ define HOST_ENVIRONMENT_SETUP_INSTALL_CMDS for var in $(TARGET_CONFIGURE_OPTS); do \ printf "export \"$$var\"\n" >> $(ENVIRONMENT_SETUP_FILE); \ done + printf "export \"ARCH=$(KERNEL_ARCH)\"\n" >> $(ENVIRONMENT_SETUP_FILE) printf "export \"CROSS_COMPILE=$(TARGET_CROSS)\"\n" >> $(ENVIRONMENT_SETUP_FILE) printf "export \"CONFIGURE_FLAGS=--target=$(GNU_TARGET_NAME) \ --host=$(GNU_TARGET_NAME) \
@@ -31,6 +32,10 @@ define HOST_ENVIRONMENT_SETUP_INSTALL_CMDS $(ENVIRONMENT_SETUP_FILE) printf "export \"PATH=\$$SDK_PATH/bin:\$$SDK_PATH/sbin:\$$PATH\"\n" \ >> $(ENVIRONMENT_SETUP_FILE) + + $(if $(BR2_LINUX_KERNEL),\ + printf "export \"KERNELDIR=$(LINUX_BUILDDIR)\"\n" \ + >> $(ENVIRONMENT_SETUP_FILE),) endef $(eval $(host-generic-package))
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2.25.1