Add sandbox support for AsanCoverage.

content/common/sandbox_linux/sandbox_linux.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_COMMON_SANDBOX_LINUX_SANDBOX_LINUX_H_
 #define CONTENT_COMMON_SANDBOX_LINUX_SANDBOX_LINUX_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/common/sandbox_linux.h"
 
+#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
+    defined(LEAK_SANITIZER)
+#include <sanitizer/common_interface_defs.h>
+#endif
+
 template <typename T> struct DefaultSingletonTraits;
 namespace base {
 class Thread;
 }
 namespace sandbox { class SetuidSandboxClient; }
 
 namespace content {
 
 // A singleton class to represent and change our sandboxing state for the
 // three main Linux sandboxes.
@@ skipping 51 matching lines @@
 
   // Check the policy and eventually start the seccomp-bpf sandbox. This should
   // never be called with threads started. If we detect that threads have
   // started we will crash.
   bool StartSeccompBPF(const std::string& process_type);
 
   // Limit the address space of the current process (and its children).
   // to make some vulnerabilities harder to exploit.
   bool LimitAddressSpace(const std::string& process_type);
 
+#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
+    defined(LEAK_SANITIZER)
+  __sanitizer_sandbox_arguments* sanitizer_args() const {

[jln (very slow on Chromium), 2014/05/14 17:49:41]

Since this is a scoped_ptr and we're not doing a trivial accessor, could you
make this GetSanitizerArgs() instead?

But see the further discussion about ownership of the pointer first.

+    return sanitizer_args_.get();
+  };
+#endif
+
  private:
   friend struct DefaultSingletonTraits<LinuxSandbox>;
 
   // Some methods are static and get an instance of the Singleton. These
   // are the non-static implementations.
   bool InitializeSandboxImpl();
   void StopThreadImpl(base::Thread* thread);
   // We must have been pre_initialized_ before using this.
   bool seccomp_bpf_supported() const;
   // Returns true if it can be determined that the current process has open
@@ skipping 15 matching lines @@
   // ourselves sandboxed.
   int proc_fd_;
   bool seccomp_bpf_started_;
   // The value returned by GetStatus(). Gets computed once and then cached.
   int sandbox_status_flags_;
   // Did PreinitializeSandbox() run?
   bool pre_initialized_;
   bool seccomp_bpf_supported_;  // Accurate if pre_initialized_.
   bool yama_is_enforcing_;  // Accurate if pre_initialized_.
   scoped_ptr<sandbox::SetuidSandboxClient> setuid_sandbox_client_;
+#if defined(ADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || \
+    defined(LEAK_SANITIZER)
+  scoped_ptr<__sanitizer_sandbox_arguments> sanitizer_args_;
+#endif
 
   ~LinuxSandbox();
   DISALLOW_IMPLICIT_CONSTRUCTORS(LinuxSandbox);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_SANDBOX_LINUX_SANDBOX_LINUX_H_