malloc: Add mallopt test.

ChangeLog:

2014-05-12  Will Newton  <will.newton@linaro.org>

	* malloc/Makefile (tests): Add tst-mallopt.
	* malloc/tst-mallopt.c: New file.

ChangeLog

@@ -1,3 +1,8 @@
+2014-05-12  Will Newton  <will.newton@linaro.org>
+
+	* malloc/Makefile (tests): Add tst-mallopt.
+	* malloc/tst-mallopt.c: New file.
+
 2014-05-09  Roland McGrath  <roland@hack.frob.com>
 
 	* sysdeps/arm/armv7/strcmp.S: Use sfi_breg prefix on loads not from sp.

malloc/Makefile

@@ -27,7 +27,7 @@ headers := $(dist-headers) obstack.h mcheck.h
 tests := mallocbug tst-malloc tst-valloc tst-calloc tst-obstack \
 	 tst-mallocstate tst-mcheck tst-mallocfork tst-trim1 \
 	 tst-malloc-usable tst-realloc tst-posix_memalign \
-	 tst-pvalloc tst-memalign
+	 tst-pvalloc tst-memalign tst-mallopt
 test-srcs = tst-mtrace
 
 routines = malloc morecore mcheck mtrace obstack

malloc/tst-mallopt.c

@@ -0,0 +1,75 @@
+/* Copyright (C) 2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <malloc.h>
+#include <stdio.h>
+#include <string.h>
+
+static int errors = 0;
+
+static void
+merror (const char *msg)
+{
+  ++errors;
+  printf ("Error: %s\n", msg);
+}
+
+static int
+do_test (void)
+{
+  int ret;
+
+  ret = mallopt(M_CHECK_ACTION, 1);
+
+  if (ret != 1)
+    merror ("mallopt (M_CHECK_ACTION, 1) failed.");
+
+  ret = mallopt(M_MMAP_MAX, 64*1024);
+
+  if (ret != 1)
+    merror ("mallopt (M_MMAP_MAX, 64*1024) failed.");
+
+  ret = mallopt(M_MMAP_THRESHOLD, 64*1024);
+
+  if (ret != 1)
+    merror ("mallopt (M_MMAP_THRESHOLD, 64*1024) failed.");
+
+  ret = mallopt(M_MXFAST, 0);
+
+  if (ret != 1)
+    merror ("mallopt (M_MXFAST, 0) failed.");
+
+  ret = mallopt(M_PERTURB, 0xa5);
+
+  if (ret != 1)
+    merror ("mallopt (M_PERTURB, 0xa5) failed.");
+
+  ret = mallopt(M_TOP_PAD, 64*1024);
+
+  if (ret != 1)
+    merror ("mallopt (M_TOP_PAD, 64*1024) failed.");
+
+  ret = mallopt(M_TRIM_THRESHOLD, -1);
+
+  if (ret != 1)
+    merror ("mallopt (M_TRIM_THRESHOLD, -1) failed.");
+
+  return errors != 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"