* malloc/Makefile (tests): Add tst-trim1.
(mTRIm): Additionally iterate over all free blocks and use madvise
to free memory for all those blocks which contain at least one
memory page.
+ * malloc/tst-trim1.c: New file.
+ * malloc/Makefile (tests): Add tst-trim1.
* malloc/malloc.c (do_check_malloc_state): Minimal cleanups.
-# Copyright (C) 1991-1999, 2000, 2001, 2002, 2003, 2005, 2006
+# Copyright (C) 1991-1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007
# Free Software Foundation, Inc.
# This file is part of the GNU C Library.
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-mallocstate tst-mcheck tst-mallocfork tst-trim1
test-srcs = tst-mtrace
distribute = thread-m.h mtrace.pl mcheck-init.c stackinfo.h memusage.h \
--- /dev/null
+#include <malloc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define N 10000
+
+static void *arr[N];
+
+static int
+do_test (void)
+{
+ for (int i = 0; i < N; ++i)
+ {
+ size_t size = random () % 16384;
+
+ if ((arr[i] = malloc (size)) == NULL)
+ {
+ nomem:
+ puts ("not enough memory");
+ return 0;
+ }
+
+ memset (arr[i], size, size);
+ }
+
+ void *p = malloc (256);
+ if (p == NULL)
+ goto nomem;
+ memset (p, 1, 256);
+
+ puts ("==================================================================");
+
+ for (int i = 0; i < N; ++i)
+ if (i % 13 != 0)
+ free (arr[i]);
+
+ puts ("==================================================================");
+
+ malloc_trim (0);
+
+ puts ("==================================================================");
+
+ p = malloc (30000);
+ if (p == NULL)
+ goto nomem;
+
+ memset (p, 2, 30000);
+
+ malloc_trim (0);
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"