From: Szabolcs Nagy <nsz@port70.net>
Date: Wed, 25 Nov 2015 23:03:59 +0000 (+0000)
Subject: add __tls_get_new regression test
X-Git-Url: http://nsz.repo.hu/git/?p=libc-test;a=commitdiff_plain;h=79af0fbbf1e6b52196c55f0adc4fd4395a91f00a

add __tls_get_new regression test
---

diff --git a/src/regression/tls_get_new-dtv.c b/src/regression/tls_get_new-dtv.c
new file mode 100644
index 0000000..a183fff
--- /dev/null
+++ b/src/regression/tls_get_new-dtv.c
@@ -0,0 +1,38 @@
+// __tls_get_new did not allocate new dtv for threads properly
+#include <pthread.h>
+#include <dlfcn.h>
+#include "test.h"
+
+#define N 10
+
+#define T(c) ((c) || (t_error(#c " failed\n"),0))
+
+static pthread_barrier_t b;
+static void *mod;
+
+static void *start(void *a)
+{
+	void *(*f)(void);
+
+	pthread_barrier_wait(&b);
+	T(f = dlsym(mod, "f"));
+	f();
+	return 0;
+}
+
+int main()
+{
+	pthread_t td[N];
+	int i;
+
+	pthread_barrier_init(&b, 0, N+1);
+	for (i=0; i<N; i++)
+		T(!pthread_create(td+i, 0, start, 0));
+
+	T(mod = dlopen("tls_get_new-dtv_dso.so", RTLD_NOW));
+	pthread_barrier_wait(&b);
+
+	for (i=0; i<N; i++)
+		T(!pthread_join(td[i], 0));
+	return t_status;
+}
diff --git a/src/regression/tls_get_new-dtv_dso.c b/src/regression/tls_get_new-dtv_dso.c
new file mode 100644
index 0000000..eb4be9b
--- /dev/null
+++ b/src/regression/tls_get_new-dtv_dso.c
@@ -0,0 +1,13 @@
+__thread char v[123];
+__thread int x = 42;
+__thread long double y;
+
+void *f()
+{
+	int i;
+	for (i=0; i<sizeof v; i++)
+		v[i] = i%16;
+	return v;
+}
+void *g() {return &x;}
+void *h() {return &y;}