test malloc/realloc/free with some flag combo's

2 files changed, 122 insertions, 0 deletions

diff --git a/src/regress/lib/libc/malloc/malloc_general/Makefile b/src/regress/lib/libc/malloc/malloc_general/Makefile
new file mode 100644
index 0000000000..18151b1ea0
--- /dev/null
+++ b/src/regress/lib/libc/malloc/malloc_general/Makefile
@@ -0,0 +1,26 @@
+#       $OpenBSD: Makefile,v 1.1 2017/01/23 11:06:32 otto Exp $
+
+REGRESS_TARGETS=        t1 t2 t3 t4 t5 t6 t7
+
+.include <bsd.regress.mk>
+
+t1:     malloc_general
+        malloc_general ""
+
+t2:     malloc_general
+        malloc_general C
+
+t3:     malloc_general
+        malloc_general J
+
+t4:     malloc_general
+        malloc_general F
+
+t5:     malloc_general
+        malloc_general G
+
+t6:     malloc_general
+        malloc_general S
+
+t7:     malloc_general
+        malloc_general FGJ
diff --git a/src/regress/lib/libc/malloc/malloc_general/malloc_general.c b/src/regress/lib/libc/malloc/malloc_general/malloc_general.c
new file mode 100644
index 0000000000..336326bc57
--- /dev/null
+++ b/src/regress/lib/libc/malloc/malloc_general/malloc_general.c
@@ -0,0 +1,96 @@
+/*      $OpenBSD        */
+/*
+ * Copyright (c) 2017 Otto Moerbeek <otto@drijf.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* $define VERBOSE */
+
+#define N 1000
+
+size_t size(void)
+{
+        int p = arc4random_uniform(13) + 3;
+        return arc4random_uniform(1 << p);
+}
+
+void *a[N];
+
+extern char *malloc_options;
+
+int
+main(int argc, char *argv[])
+{
+        int count, p, i;
+        void * q;
+        size_t sz;
+
+        if (argc == 1)
+                errx(1, "usage: malloc_options");
+
+        malloc_options = argv[1];
+
+        for (count = 0; count < 800000; count++) {
+                if (count % 10000 == 0) {
+                        printf(".");
+                        fflush(stdout);
+                }
+                p = arc4random_uniform(2);
+                i = arc4random_uniform(N);
+                switch (p) {
+                case 0:
+                        if (a[i]) {
+#ifdef VERBOSE
+                                printf("F %p\n", a[i]);
+#endif
+                                free(a[i]);
+                                a[i] = NULL;
+                        }
+                        sz = size();
+#ifdef VERBOSE
+                        printf("M %zu=", sz);
+#endif
+                        a[i] = malloc(sz);
+#ifdef VERBOSE
+                        printf("%p\n", a[i]);
+#endif
+                        if (a[i])
+                                memset(a[i], 0xff, sz);
+                        break;
+                case 1:
+                        sz = size();
+#ifdef VERBOSE
+                        printf("R %p %zu=", a[i], sz);
+#endif
+                        q = realloc(a[i], sz);
+#ifdef VERBOSE
+                        printf("%p\n", q);
+#endif
+                        if (q) {
+                                a[i]= q;
+                                if (a[i])
+                                        memset(a[i], 0xff, sz);
+                        }
+                        break;
+                }
+        }
+        for (i = 0; i < N; i++)
+                free(a[i]);
+        printf("\n");
+        return 0;
+}