initial buildroot for linux 5.15

package/micropython/Config.in

@@ -0,0 +1,14 @@
+config BR2_PACKAGE_MICROPYTHON
+	bool "micropython"
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_STATIC_LIBS
+	select BR2_PACKAGE_LIBFFI
+	help
+	  Micro Python is a lean and fast implementation of the Python
+	  3 programming language that is optimised to run on a
+	  microcontroller.
+
+	  http://micropython.org
+
+comment "micropython needs a toolchain w/ threads, dynamic library"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS

package/micropython/micropython.hash

@@ -0,0 +1,3 @@
+#locally computed
+sha256  c21dbf8144237b3dbe3847c9ad5264cd0f3104eb078c810b3986004cce8fcd70  micropython-1.17.tar.gz
+sha256  59b1f0947a87c90d0d29dbe2c8deb3d1f8263bbbd2fb5ebcc79a649cff6dfcba  LICENSE

package/micropython/micropython.mk

@@ -0,0 +1,55 @@
+################################################################################
+#
+# micropython
+#
+################################################################################
+
+MICROPYTHON_VERSION = 1.17
+MICROPYTHON_SITE = $(call github,micropython,micropython,v$(MICROPYTHON_VERSION))
+# Micropython has a lot of code copied from other projects, and also a number
+# of submodules for various libs. However, we don't even clone the submodules,
+# and most of the copied code is not used in the unix build.
+MICROPYTHON_LICENSE = MIT, BSD-1-Clause, BSD-3-Clause, Zlib
+MICROPYTHON_LICENSE_FILES = LICENSE
+MICROPYTHON_DEPENDENCIES = host-pkgconf libffi host-python3
+
+# Set GIT_DIR so package won't use buildroot's version number
+MICROPYTHON_MAKE_ENV = \
+	$(TARGET_MAKE_ENV) \
+	GIT_DIR=.
+
+# Use fallback implementation for exception handling on architectures that don't
+# have explicit support.
+ifeq ($(BR2_i386)$(BR2_x86_64)$(BR2_arm)$(BR2_armeb),)
+MICROPYTHON_CFLAGS = -DMICROPY_GCREGS_SETJMP=1
+endif
+
+# xtensa has problems with nlr_push, use setjmp based implementation instead
+ifeq ($(BR2_xtensa),y)
+MICROPYTHON_CFLAGS = -DMICROPY_NLR_SETJMP=1
+endif
+
+# When building from a tarball we don't have some of the dependencies that are in
+# the git repository as submodules
+MICROPYTHON_MAKE_OPTS += \
+	MICROPY_PY_BTREE=0 \
+	MICROPY_PY_USSL=0 \
+	CROSS_COMPILE=$(TARGET_CROSS) \
+	CFLAGS_EXTRA=$(MICROPYTHON_CFLAGS) \
+	CWARN=
+
+define MICROPYTHON_BUILD_CMDS
+	$(MICROPYTHON_MAKE_ENV) $(MAKE) -C $(@D)/mpy-cross
+	$(MICROPYTHON_MAKE_ENV) $(MAKE) -C $(@D)/ports/unix \
+		$(MICROPYTHON_MAKE_OPTS)
+endef
+
+define MICROPYTHON_INSTALL_TARGET_CMDS
+	$(MICROPYTHON_MAKE_ENV) $(MAKE) -C $(@D)/ports/unix \
+		$(MICROPYTHON_MAKE_OPTS) \
+		DESTDIR=$(TARGET_DIR) \
+		PREFIX=/usr \
+		install
+endef
+
+$(eval $(generic-package))