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-rw-r--r--test/nptl/tst-basic7.c75
1 files changed, 75 insertions, 0 deletions
diff --git a/test/nptl/tst-basic7.c b/test/nptl/tst-basic7.c
new file mode 100644
index 000000000..15b618786
--- /dev/null
+++ b/test/nptl/tst-basic7.c
@@ -0,0 +1,75 @@
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+
+static void use_stack (size_t needed);
+
+void (*use_stack_ptr) (size_t) = use_stack;
+
+static void
+use_stack (size_t needed)
+{
+ size_t sz = sysconf (_SC_PAGESIZE);
+ char *buf = alloca (sz);
+ memset (buf, '\0', sz);
+
+ if (needed > sz)
+ use_stack_ptr (needed - sz);
+}
+
+static void
+use_up_memory (void)
+{
+ struct rlimit rl;
+ getrlimit (RLIMIT_AS, &rl);
+ rl.rlim_cur = 10 * 1024 * 1024;
+ setrlimit (RLIMIT_AS, &rl);
+
+ char *c;
+ int PAGESIZE = getpagesize ();
+ while (1)
+ {
+ c = mmap (NULL, PAGESIZE, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);
+ if (c == MAP_FAILED)
+ break;
+ }
+}
+
+static void *
+child (void *arg)
+{
+ sleep (1);
+ return arg;
+}
+
+static int
+do_test (void)
+{
+ int err;
+ pthread_t tid;
+
+ /* Allocate the memory needed for the stack. */
+ use_stack_ptr (PTHREAD_STACK_MIN);
+
+ use_up_memory ();
+
+ err = pthread_create (&tid, NULL, child, NULL);
+ if (err != 0)
+ {
+ printf ("pthread_create returns %d: %s\n", err,
+ err == EAGAIN ? "OK" : "FAIL");
+ return err != EAGAIN;
+ }
+
+ /* We did not fail to allocate memory despite the preparation. Oh well. */
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"