1 files changed, 47 insertions, 0 deletions
diff --git a/test/sanitizer_common/TestCases/Linux/pvalloc-overflow.cc b/test/sanitizer_common/TestCases/Linux/pvalloc-overflow.cc
new file mode 100644
index 000000000000..537c57e1a69f
--- /dev/null
+++ b/test/sanitizer_common/TestCases/Linux/pvalloc-overflow.cc
@@ -0,0 +1,47 @@
+// RUN: %clangxx %collect_stack_traces -O0 %s -o %t
+// RUN: %env_tool_opts=allocator_may_return_null=0 not %run %t m1 2>&1 | FileCheck %s
+// RUN: %env_tool_opts=allocator_may_return_null=1     %run %t m1 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
+// RUN: %env_tool_opts=allocator_may_return_null=0 not %run %t psm1 2>&1 | FileCheck %s
+// RUN: %env_tool_opts=allocator_may_return_null=1     %run %t psm1 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
+
+// REQUIRES: stable-runtime
+
+// UNSUPPORTED: android, freebsd, netbsd, ubsan
+
+// Checks that pvalloc overflows are caught. If the allocator is allowed to
+// return null, the errno should be set to ENOMEM.
+
+#include <assert.h>
+#include <errno.h>
+#include <malloc.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[]) {
+  assert(argc == 2);
+  const char *action = argv[1];
+
+  const size_t page_size = sysconf(_SC_PAGESIZE);
+
+  void *p = nullptr;
+  if (!strcmp(action, "m1")) {
+    p = pvalloc((uintptr_t)-1);
+  } else if (!strcmp(action, "psm1")) {
+    p = pvalloc((uintptr_t)-(page_size - 1));
+  } else {
+    assert(0);
+  }
+  // CHECK: {{ERROR: .*Sanitizer: pvalloc parameters overflow: size .* rounded up to system page size .* cannot be represented in type size_t}}
+  // CHECK: {{#0 .*pvalloc}}
+  // CHECK: {{#1 .*main .*pvalloc-overflow.cc:}}
+  // CHECK: {{SUMMARY: .*Sanitizer: pvalloc-overflow}}
+
+  // The NULL pointer is printed differently on different systems, while (long)0
+  // is always the same.
+  fprintf(stderr, "errno: %d, p: %lx\n", errno, (long)p);
+  // CHECK-NULL: errno: 12, p: 0
+
+  return 0;
+}