From: Antti Kantee <pooka@iki.fi>
Date: Tue, 20 Jan 2015 16:46:29 +0000 (+0100)
Subject: add @mato's tls tester, simplified+automated a bit
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=52dab0306643d5421aeeb6a3b13adce1cb7a359a;p=rumpuser-xen.git

add @mato's tls tester, simplified+automated a bit
---

diff --git a/Makefile b/Makefile
index 4436814..32a29ea 100644
--- a/Makefile
+++ b/Makefile
@@ -127,7 +127,8 @@ tests:
 httpd:
 	$(APP_TOOLS_MAKE) -C httpd -f Makefile.boot
 
-STDTESTS=tests/libstdtests/rumpkern_demo.c tests/libstdtests/pthread_test.c
+STDTESTS=tests/libstdtests/rumpkern_demo.c tests/libstdtests/pthread_test.c \
+	 tests/libstdtests/tls_test.c
 rump-kernel: ${STDTESTS} httpd
 	app-tools/rumpapp-xen-cc -o $@ ${STDTESTS} httpd/*.o
 
diff --git a/tests/libstdtests/rumpkern_demo.c b/tests/libstdtests/rumpkern_demo.c
index 0e45a18..96167c3 100644
--- a/tests/libstdtests/rumpkern_demo.c
+++ b/tests/libstdtests/rumpkern_demo.c
@@ -375,6 +375,7 @@ dohttpd(void)
 }
 
 void test_pthread(void);
+void test_tls(void);
 
 int
 main(int argc, char *argv[])
@@ -391,6 +392,8 @@ main(int argc, char *argv[])
 		dofs();
 	if (tests & 0x8)
 		test_pthread();
+	if (tests & 0x10)
+		test_tls();
 	if (tests & 0x2)
 		donet();
 	if (tests & 0x4)
diff --git a/tests/libstdtests/tls_test.c b/tests/libstdtests/tls_test.c
new file mode 100644
index 0000000..552a91b
--- /dev/null
+++ b/tests/libstdtests/tls_test.c
@@ -0,0 +1,69 @@
+/* Simple test for TLS support */
+#ifdef __x86_64__
+#include <sys/types.h>
+
+#include <err.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdio.h>
+
+#define NTHREADS 10
+#define LOOPCNT 1000
+#define IINITIAL 12345678
+
+static __thread unsigned long c;
+static __thread unsigned long i = IINITIAL;
+
+static void *
+wrkthread(void *arg)
+{
+
+	printf ("Thread %d starting\n", (int)(uintptr_t)arg);
+	if (i != IINITIAL) {
+		printf("initial i incorrect: %lu vs. %d\n", i, IINITIAL);
+		return NULL;
+	}
+	i++;
+
+	while (c < LOOPCNT) {
+		c++;
+		sched_yield();
+	}
+	return (void *)(uintptr_t)c;
+}
+
+void
+test_tls(void)
+{
+	pthread_t threads[NTHREADS];
+	int n, rc;
+
+	printf("TLS test\n");
+
+	for (n = 0; n < NTHREADS; n++) {
+		rc = pthread_create(&threads[n], NULL,
+		    wrkthread, (void *)(uintptr_t)n);
+		if (rc != 0) {
+			errx(1, "pthread_create[%d] failed", n);
+		}
+	}
+
+	for (n = NTHREADS-1; n >= 0; n--) {
+		void *ret;
+		int rv;
+
+		rc = pthread_join(threads[n], &ret);
+		if (rc != 0) {
+			err(1, "pthread_join[%d] failed", n);
+		}
+		rv = (int)(uintptr_t)ret;
+		if (rv != LOOPCNT)
+			errx(1, "thread[%d]: expected %d, got %d\n",
+			    n, LOOPCNT, rv);
+	}
+}
+
+#else
+void test_tls(void) {}
+#endif