add hello world test program

3 files changed, 48 insertions, 0 deletions

diff --git a/mrbgems/g/hello_world/Makefile b/mrbgems/g/hello_world/Makefile
new file mode 100644
index 000000000..50a92f03a
--- /dev/null
+++ b/mrbgems/g/hello_world/Makefile
@@ -0,0 +1,25 @@
+GEMNAME := hello_world
+MRUBY_ROOT = ../../../
+
+INCLUDES = -I$(MRUBY_ROOT)include -I$(MRUBY_ROOT)src -I.
+CFLAGS = $(INCLUDES) -O3 -g -Wall -Werror-implicit-function-declaration
+RM_F := rm -f
+AR := ar
+
+ifeq ($(strip $(LIBR)),)
+  # default mruby library
+  LIBR = $(MRUBY_ROOT)lib/libmruby.a
+endif
+
+.PHONY : all
+all : src/hello_world.o
+	@$(AR) rs $(LIBR) src/hello_world.o
+	@echo "Gem '$(GEMNAME)' is done"
+
+src/hello_world.o : src/hello_world.c
+	@gcc -c $(CFLAGS) src/hello_world.c -o src/hello_world.o
+
+.PHONY : clean
+clean :
+	-$(RM_F) src/*.o
+	@echo "Gem '$(GEMNAME)' is clean"
diff --git a/mrbgems/g/hello_world/README.md b/mrbgems/g/hello_world/README.md
new file mode 100644
index 000000000..d84bb9941
--- /dev/null
+++ b/mrbgems/g/hello_world/README.md
@@ -0,0 +1,6 @@
+mruby-md5
+=========
+
+MD5 digest function.
+
+This library comes original from mattn (http://github.com/mattn/mruby-md5)
diff --git a/mrbgems/g/hello_world/src/hello_world.c b/mrbgems/g/hello_world/src/hello_world.c
new file mode 100644
index 000000000..75d353542
--- /dev/null
+++ b/mrbgems/g/hello_world/src/hello_world.c
@@ -0,0 +1,17 @@
+#include <mruby.h>
+#include <stdio.h>
+
+static struct RClass *_class_hw;
+
+static mrb_value
+mrb_hello_world(mrb_state *mrb, mrb_value self)
+{
+  puts("Hello World");
+  return self;
+}
+
+void
+mrb_hello_world_gem_init(mrb_state* mrb) {
+  _class_hw = mrb_define_module(mrb, "HW");
+  mrb_define_class_method(mrb, _class_hw, "say", mrb_hello_world, ARGS_NONE());
+}