[PATCH v2] malloc: Add pvalloc test.

[Will Newton <will dot newton at linaro dot org>]

ChangeLog:

2013-08-16  Will Newton  <will.newton@linaro.org>

    * malloc/Makefile: Add tst-pvalloc.
    * malloc/tst-pvalloc.c: New file.
---
 malloc/Makefile      |  3 +-
 malloc/tst-pvalloc.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 93 insertions(+), 1 deletion(-)
 create mode 100644 malloc/tst-pvalloc.c

Changes in v2:
 - Check errno for -pagesize failure case

diff --git a/malloc/Makefile b/malloc/Makefile
index 4903c13..17d146b 100644
--- a/malloc/Makefile
+++ b/malloc/Makefile
@@ -26,7 +26,8 @@ dist-headers := malloc.h
 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-malloc-usable tst-realloc tst-posix_memalign \
+	 tst-pvalloc
 test-srcs = tst-mtrace

 routines = malloc morecore mcheck mtrace obstack
diff --git a/malloc/tst-pvalloc.c b/malloc/tst-pvalloc.c
new file mode 100644
index 0000000..1126672
--- /dev/null
+++ b/malloc/tst-pvalloc.c
@@ -0,0 +1,91 @@
+/* Copyright (C) 2013 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 <errno.h>
+#include <malloc.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+static int errors = 0;
+
+static void
+merror (const char *msg)
+{
+  ++errors;
+  printf ("Error: %s\n", msg);
+}
+
+static int
+do_test (void)
+{
+  void *p;
+  unsigned long pagesize = getpagesize();
+  unsigned long ptrval;
+  int save;
+
+  errno = 0;
+
+  p = pvalloc (-1);
+
+  save = errno;
+
+  if (p != NULL)
+    merror ("pvalloc (-1) succeeded.");
+
+  if (p == NULL && save != ENOMEM)
+    merror ("pvalloc (-1) errno is not set correctly");
+
+  errno = 0;
+
+  p = pvalloc (-pagesize);
+
+  save = errno;
+
+  if (p != NULL)
+    merror ("pvalloc (-pagesize) succeeded.");
+
+  if (p == NULL && save != ENOMEM)
+    merror ("pvalloc (-pagesize) errno is not set correctly");
+
+  p = pvalloc (0);
+
+  if (p == NULL)
+    merror ("pvalloc (0) failed.");
+
+  free (p);
+
+  p = pvalloc (32);
+
+  if (p == NULL)
+    merror ("pvalloc (32) failed.");
+
+  ptrval = (unsigned long)p;
+
+  if (p == NULL)
+    merror ("pvalloc (32) failed.");
+
+  if ((ptrval & (pagesize - 1)) != 0)
+    merror ("returned pointer is not page aligned.");
+
+  free (p);
+
+  return errors != 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
-- 
1.8.1.4