Seccomp sandbox changes (performance and correctness fixes, primarily targetting x86-32)

sandbox/linux/seccomp/sandbox_impl.h

+// Copyright (c) 2010 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 SANDBOX_IMPL_H__
 #define SANDBOX_IMPL_H__
 
 #include <asm/ldt.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
 #include <linux/prctl.h>
 #include <linux/unistd.h>
 #include <netinet/in.h>
@@ skipping 342 matching lines @@
         void* fake_ret;
       } regs64 __attribute__((packed));
     #elif defined(__i386__)
       struct {
         void* ebp;
         void* edi;
         void* esi;
         void* edx;
         void* ecx;
         void* ebx;
-        void* ret2;
       } regs32 __attribute__((packed));
     #else
     #error Unsupported target platform
     #endif
     void*     ret;
   } __attribute__((packed));
 
   struct Connect {
     int       sockfd;
     void*     addr;
@@ skipping 279 matching lines @@
   static ProtectedMap                  protectedMap_;
   static std::vector<SecureMem::Args*> secureMemPool_;
 };
 
 } // namespace
 
 using playground::Sandbox;
 #endif // __cplusplus
 
 #endif // SANDBOX_IMPL_H__