Added a simple TLS test app.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2361 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/kernel/apps/Jamfile

@@ -7,6 +7,7 @@ KernelObjects
 	true_main.c
 	sig_test.c
 	select_test.c
+	tls_test.c
 	;
 
 SubInclude OBOS_TOP src kernel apps cpuinfo ;

src/kernel/apps/tls_test.c

@@ -0,0 +1,93 @@
+/* tests TLS (thread locale storage) functionality */
+
+/* 
+** Copyright 2002, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <OS.h>
+#include <TLS.h>
+
+#include <stdio.h>
+#include <string.h>
+
+
+sem_id gWait;
+int32 gSlot;
+
+
+#if __INTEL__
+static void *
+read_fs_register(void)
+{
+	void *fs;
+
+	asm("movl %%fs, %0" : "=r" (fs));
+	return fs;
+}
+#endif
+
+
+static int32
+thread1_func(void *data)
+{
+	printf("1. stack at: %p\n", &data);
+	printf("1. TLS address = %p\n", tls_address(gSlot));
+	tls_set(gSlot, (void *)"thread 1");
+	printf("1. TLS get = %s (should be \"thread 1\")\n", (char *)tls_get(gSlot));
+
+	acquire_sem(gWait);
+
+	printf("1. TLS get = %s (should be \"thread 1\")\n", (char *)tls_get(gSlot));
+
+	return 0;
+}
+
+
+static int32
+thread2_func(void *data)
+{
+	printf("2. stack at: %p\n", &data);
+	printf("2. TLS address = %p\n", tls_address(gSlot));
+	printf("2. TLS get = %s (should be NULL)\n", (char *)tls_get(gSlot));
+
+	acquire_sem(gWait);
+
+	printf("2. TLS get = %s (should be NULL)\n", (char *)tls_get(gSlot));
+
+	return 0;
+}
+
+
+int
+main(int argc, char **argv)
+{
+	thread_id thread1, thread2;
+
+	gWait = create_sem(0, "waiter");
+	gSlot = tls_allocate();
+
+	printf("got slot %ld : %p\n", gSlot, &thread1);
+
+#if __INTEL__
+	printf("FS register is %p\n", read_fs_register());
+#endif
+	printf("TLS address in main = %p\n", tls_address(gSlot));
+
+	tls_set(gSlot, (void *)"main thread");
+
+	thread1 = spawn_thread(thread1_func, "Thread 1" , B_NORMAL_PRIORITY, NULL);
+	resume_thread(thread1);
+	thread2 = spawn_thread(thread2_func, "Thread 2" , B_NORMAL_PRIORITY, NULL);
+	resume_thread(thread2);
+
+	printf("TLS in main = %s (should be \"main thread\")\n", (char *)tls_get(gSlot));
+
+	// shut down
+	snooze(100000);
+	delete_sem(gWait);
+
+	return 0;
+}
+