interpreters: Add initial duktape support

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
Change-Id: I8909551d565ce9d1ae25607367a005eee13c3860

interpreters/duktape/.gitignore

@@ -0,0 +1 @@
+duktape-*

interpreters/duktape/Kconfig

@@ -0,0 +1,20 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config INTERPRETERS_DUKTAPE
+	tristate "Duktape JavaScript interpreter"
+	default n
+
+if INTERPRETERS_DUKTAPE
+
+config INTERPRETERS_DUKTAPE_PRIORITY
+	int "Duktape interpreter priority"
+	default 100
+
+config INTERPRETERS_DUKTAPE_STACKSIZE
+	int "Duktape interpreter stack size"
+	default 8192
+
+endif

interpreters/duktape/Make.defs

@@ -0,0 +1,23 @@
+############################################################################
+# interpreters/duktape/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+ifneq ($(CONFIG_INTERPRETERS_DUKTAPE),)
+CONFIGURED_APPS += $(APPDIR)/interpreters/duktape
+endif

interpreters/duktape/Makefile

@@ -0,0 +1,56 @@
+############################################################################
+# interpreters/duktape/Makefile
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(APPDIR)/Make.defs
+
+DUKTAPE_VERSION = 2.5.0
+DUKTAPE_UNPACK  = duktape-$(DUKTAPE_VERSION)
+DUKTAPE_TARBALL = duktape-$(DUKTAPE_VERSION).tar.xz
+DUKTAPE_URL     = https://github.com/svaarala/duktape/releases/ \
+                    download/v$(DUKTAPE_VERSION)/$(DUKTAPE_TARBALL)
+
+CSRCS = $(DUKTAPE_UNPACK)/src-noline/duktape.c
+
+MAINSRC = $(DUKTAPE_UNPACK)/examples/cmdline/duk_cmdline.c
+
+PROGNAME  = duk
+PRIORITY  = $(CONFIG_INTERPRETERS_DUKTAPE_PRIORITY)
+STACKSIZE = $(CONFIG_INTERPRETERS_DUKTAPE_STACKSIZE)
+MODULE    = $(CONFIG_INTERPRETERS_DUKTAPE)
+
+CFLAGS += -I$(DUKTAPE_UNPACK)/src-noline
+
+$(DUKTAPE_TARBALL):
+	@echo "Downloading $(DUKTAPE_TARBALL)"
+	@wget $(DUKTAPE_URL)
+
+$(DUKTAPE_UNPACK): $(DUKTAPE_TARBALL)
+	@echo "Unpacking $(DUKTAPE_TARBALL) to $(DUKTAPE_UNPACK)"
+	@tar xvfJ $(DUKTAPE_TARBALL)
+	@echo "Patching $(DUKTAPE_UNPACK)"
+	@patch -p0 < duk_cmdline.patch
+
+context:: $(DUKTAPE_UNPACK)
+
+distclean::
+	$(call DELDIR, $(DUKTAPE_UNPACK))
+	$(call DELFILE, $(DUKTAPE_TARBALL))
+
+include $(APPDIR)/Application.mk

interpreters/duktape/duk_cmdline.patch

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+diff --color -ur duktape-2.5.0/examples/cmdline/duk_cmdline.c duktape-2.5.0-modified/examples/cmdline/duk_cmdline.c
+--- duktape-2.5.0/examples/cmdline/duk_cmdline.c	2019-11-25 06:04:27.000000000 +0800
++++ duktape-2.5.0-modified/examples/cmdline/duk_cmdline.c	2020-08-06 17:03:30.630000000 +0800
+@@ -810,6 +810,8 @@
+ 
+ 		for (;;) {
+ 			int c = fgetc(stdin);
++			fputc(c, stdout);
++			fflush(stdout);
+ 			if (c == EOF) {
+ 				got_eof = 1;
+ 				break;