1 files changed, 66 insertions, 0 deletions
diff --git a/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cc b/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cc
new file mode 100644
index 000000000000..145cc5d05769
--- /dev/null
+++ b/test/sanitizer_common/TestCases/Linux/soft_rss_limit_mb_test.cc
@@ -0,0 +1,66 @@
+// Check soft_rss_limit_mb. Not all sanitizers implement it yet.
+// RUN: %clangxx -O2 %s -o %t
+//
+// Run with limit should fail:
+// RUN: %tool_options=soft_rss_limit_mb=220:quarantine_size=1:allocator_may_return_null=1     %run %t 2>&1 | FileCheck %s -check-prefix=CHECK_MAY_RETURN_1
+// RUN: %tool_options=soft_rss_limit_mb=220:quarantine_size=1:allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s -check-prefix=CHECK_MAY_RETURN_0
+
+// This run uses getrusage. We can only test getrusage when allocator_may_return_null=0
+// because getrusage gives us max-rss, not current-rss.
+// RUN: %tool_options=soft_rss_limit_mb=220:quarantine_size=1:allocator_may_return_null=0:can_use_proc_maps_statm=0 not %run %t 2>&1 | FileCheck %s -check-prefix=CHECK_MAY_RETURN_0
+
+// FIXME: make it work for other sanitizers.
+// XFAIL: lsan
+// XFAIL: tsan
+// XFAIL: msan
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+static const int kMaxNumAllocs = 1 << 9;
+static const int kAllocSize = 1 << 20;  // Large enough to go via mmap.
+
+static char *allocs[kMaxNumAllocs];
+
+int main() {
+  int num_allocs = kMaxNumAllocs / 4;
+  for (int i = 0; i < 3; i++, num_allocs *= 2) {
+    fprintf(stderr, "[%d] allocating %d times\n", i, num_allocs);
+    int zero_results = 0;
+    for (int j = 0; j < num_allocs; j++) {
+      if ((j % (num_allocs / 8)) == 0) {
+        usleep(100000);
+        fprintf(stderr, "  [%d]\n", j);
+      }
+      allocs[j] = (char*)malloc(kAllocSize);
+      if (allocs[j])
+        memset(allocs[j], -1, kAllocSize);
+      else
+        zero_results++;
+    }
+    if (zero_results)
+      fprintf(stderr, "Some of the malloc calls returned null: %d\n",
+              zero_results);
+    if (zero_results != num_allocs)
+      fprintf(stderr, "Some of the malloc calls returned non-null: %d\n",
+              num_allocs - zero_results);
+    for (int j = 0; j < num_allocs; j++) {
+      free(allocs[j]);
+    }
+  }
+}
+
+// CHECK_MAY_RETURN_1: allocating 128 times
+// CHECK_MAY_RETURN_1: Some of the malloc calls returned non-null: 128
+// CHECK_MAY_RETURN_1: allocating 256 times
+// CHECK_MAY_RETURN_1: Some of the malloc calls returned null:
+// CHECK_MAY_RETURN_1: Some of the malloc calls returned non-null:
+// CHECK_MAY_RETURN_1: allocating 512 times
+// CHECK_MAY_RETURN_1: Some of the malloc calls returned null:
+// CHECK_MAY_RETURN_1: Some of the malloc calls returned non-null:
+
+// CHECK_MAY_RETURN_0: allocating 128 times
+// CHECK_MAY_RETURN_0: Some of the malloc calls returned non-null: 128
+// CHECK_MAY_RETURN_0: allocating 256 times
+// CHECK_MAY_RETURN_0: allocator is terminating the process instead of returning