From 5087d28b8ad629faa0575f76a60a6247f2f8bc71 Mon Sep 17 00:00:00 2001
From: Stefan Lankes <slankes@eonerc.rwth-aachen.de>
Date: Sun, 9 Aug 2015 14:24:24 +0200
Subject: [PATCH] add thread demo

---
 hermit/newlib/examples/Makefile    | 15 +++++++++++----
 hermit/newlib/examples/thr_hello.c | 30 ++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 4 deletions(-)
 create mode 100644 hermit/newlib/examples/thr_hello.c

diff --git a/hermit/newlib/examples/Makefile b/hermit/newlib/examples/Makefile
index c07dd35fd..a576b73a7 100644
--- a/hermit/newlib/examples/Makefile
+++ b/hermit/newlib/examples/Makefile
@@ -1,7 +1,7 @@
 ARCH = x86
 TARGET=x86_64-hermit
 MAKE = make
-STRIP_DEBUG = --strip-debug
+override STRIP_DEBUG = --strip-unneeded --strip-debug
 KEEP_DEBUG = --only-keep-debug
 
 # Set your own cross compiler tool chain prefix here
@@ -37,7 +37,7 @@ endif
 
 default: all
 
-all: hello jacobi stream
+all: hello jacobi stream thr_hello
 
 stream: stream.o
 	@echo [LD] $@
@@ -60,13 +60,20 @@ jacobi: jacobi.o
 	$Q$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $@
 	$Qchmod a-x $@.sym
 
+thr_hello: thr_hello.o
+	@echo [LD] $@
+	$Q$(CC_FOR_TARGET) $(LDFLAGS) $(CFLAGS) -o $@ $< -lpthread
+	$Q$(OBJCOPY_FOR_TARGET) $(KEEP_DEBUG) $@ $@.sym
+	$Q$(OBJCOPY_FOR_TARGET) $(STRIP_DEBUG) $@
+	$Qchmod a-x $@.sym
+
 clean:
 	@echo Cleaning examples
-	$Q$(RM) hello jacobi *.sym *.o *~ 
+	$Q$(RM) hello jacobi stream thr_hello *.sym *.o *~
 
 veryclean:
 	@echo Propper cleaning examples
-	$Q$(RM) hello jacobi stream *.sym *.o *~
+	$Q$(RM) hello jacobi stream thr_hello *.sym *.o *~
 
 depend:
 	$Q$(CC_FOR_TARGET) -MM $(CFLAGS) *.c > Makefile.dep
diff --git a/hermit/newlib/examples/thr_hello.c b/hermit/newlib/examples/thr_hello.c
new file mode 100644
index 000000000..dfc1c47fe
--- /dev/null
+++ b/hermit/newlib/examples/thr_hello.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <pthread.h>
+
+#define MAX_THREADS 2
+
+void* thread_func(void* arg)
+{
+	int id = *((int*) arg);
+
+	printf("Hello Thread!!! id = %d\n", id);
+
+	return 0;
+}
+
+int main(int argc, char** argv)
+{
+	pthread_t threads[MAX_THREADS];
+	int i, param[MAX_THREADS];
+
+	for(i=0; i<MAX_THREADS; i++) {
+		param[i] = i;
+		pthread_create(threads+i, NULL, thread_func, param+i);
+	}
+
+	/* wait until all threads have terminated */
+	for(i=0; i<MAX_THREADS; i++)
+		pthread_join(threads[i], NULL);	
+
+	return 0;
+}