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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /memory/jemalloc/src/test/unit/quarantine.c
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'memory/jemalloc/src/test/unit/quarantine.c')
-rw-r--r--memory/jemalloc/src/test/unit/quarantine.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/memory/jemalloc/src/test/unit/quarantine.c b/memory/jemalloc/src/test/unit/quarantine.c
new file mode 100644
index 000000000..bbd48a51d
--- /dev/null
+++ b/memory/jemalloc/src/test/unit/quarantine.c
@@ -0,0 +1,108 @@
+#include "test/jemalloc_test.h"
+
+#define QUARANTINE_SIZE 8192
+#define STRINGIFY_HELPER(x) #x
+#define STRINGIFY(x) STRINGIFY_HELPER(x)
+
+#ifdef JEMALLOC_FILL
+const char *malloc_conf = "abort:false,junk:true,redzone:true,quarantine:"
+ STRINGIFY(QUARANTINE_SIZE);
+#endif
+
+void
+quarantine_clear(void)
+{
+ void *p;
+
+ p = mallocx(QUARANTINE_SIZE*2, 0);
+ assert_ptr_not_null(p, "Unexpected mallocx() failure");
+ dallocx(p, 0);
+}
+
+TEST_BEGIN(test_quarantine)
+{
+#define SZ ZU(256)
+#define NQUARANTINED (QUARANTINE_SIZE/SZ)
+ void *quarantined[NQUARANTINED+1];
+ size_t i, j;
+
+ test_skip_if(!config_fill);
+
+ assert_zu_eq(nallocx(SZ, 0), SZ,
+ "SZ=%zu does not precisely equal a size class", SZ);
+
+ quarantine_clear();
+
+ /*
+ * Allocate enough regions to completely fill the quarantine, plus one
+ * more. The last iteration occurs with a completely full quarantine,
+ * but no regions should be drained from the quarantine until the last
+ * deallocation occurs. Therefore no region recycling should occur
+ * until after this loop completes.
+ */
+ for (i = 0; i < NQUARANTINED+1; i++) {
+ void *p = mallocx(SZ, 0);
+ assert_ptr_not_null(p, "Unexpected mallocx() failure");
+ quarantined[i] = p;
+ dallocx(p, 0);
+ for (j = 0; j < i; j++) {
+ assert_ptr_ne(p, quarantined[j],
+ "Quarantined region recycled too early; "
+ "i=%zu, j=%zu", i, j);
+ }
+ }
+#undef NQUARANTINED
+#undef SZ
+}
+TEST_END
+
+static bool detected_redzone_corruption;
+
+static void
+arena_redzone_corruption_replacement(void *ptr, size_t usize, bool after,
+ size_t offset, uint8_t byte)
+{
+
+ detected_redzone_corruption = true;
+}
+
+TEST_BEGIN(test_quarantine_redzone)
+{
+ char *s;
+ arena_redzone_corruption_t *arena_redzone_corruption_orig;
+
+ test_skip_if(!config_fill);
+
+ arena_redzone_corruption_orig = arena_redzone_corruption;
+ arena_redzone_corruption = arena_redzone_corruption_replacement;
+
+ /* Test underflow. */
+ detected_redzone_corruption = false;
+ s = (char *)mallocx(1, 0);
+ assert_ptr_not_null((void *)s, "Unexpected mallocx() failure");
+ s[-1] = 0xbb;
+ dallocx(s, 0);
+ assert_true(detected_redzone_corruption,
+ "Did not detect redzone corruption");
+
+ /* Test overflow. */
+ detected_redzone_corruption = false;
+ s = (char *)mallocx(1, 0);
+ assert_ptr_not_null((void *)s, "Unexpected mallocx() failure");
+ s[sallocx(s, 0)] = 0xbb;
+ dallocx(s, 0);
+ assert_true(detected_redzone_corruption,
+ "Did not detect redzone corruption");
+
+ arena_redzone_corruption = arena_redzone_corruption_orig;
+}
+TEST_END
+
+int
+main(void)
+{
+
+ return (test(
+ test_quarantine,
+ test_quarantine_redzone));
+}