[NaCl SDK] nacl_io: Change default root filesystem type from passthroughfs to memfs

native_client_sdk/src/libraries/nacl_io/kernel_proxy.cc

 // 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.
 
 #include "nacl_io/kernel_proxy.h"
 
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
@@ skipping 59 matching lines @@
     delete i->second;
   }
 }
 
 Error KernelProxy::Init(PepperInterface* ppapi) {
   Error rtn = 0;
   ppapi_ = ppapi;
   dev_ = 1;
 
   factories_["memfs"] = new TypedFsFactory<MemFs>;
+  factories_["devfs"] = new TypedFsFactory<DevFs>;
+  // 'devfs' used to be known as simply 'dev'
   factories_["dev"] = new TypedFsFactory<DevFs>;
   factories_["html5fs"] = new TypedFsFactory<Html5Fs>;
   factories_["httpfs"] = new TypedFsFactory<HttpFs>;
   factories_["passthroughfs"] = new TypedFsFactory<PassthroughFs>;
 
   ScopedFilesystem root_fs;
-  rtn = MountInternal("", "/", "passthroughfs", 0, NULL, false, &root_fs);
+  rtn = MountInternal("", "/", "memfs", 0, NULL, false, &root_fs);
+  if (rtn != 0)
+    return rtn;
+  rtn = this->mkdir("/dev", 0777);
   if (rtn != 0)
     return rtn;
 
   ScopedFilesystem fs;
-  rtn = MountInternal("", "/dev", "dev", 0, NULL, false, &fs);
+  rtn = MountInternal("", "/dev", "devfs", 0, NULL, false, &fs);
   if (rtn != 0)
     return rtn;
   dev_fs_ = sdk_util::static_scoped_ref_cast<DevFs>(fs);
 
   // Create the filesystem nodes for / and /dev afterward. They can't be
   // created the normal way because the dev filesystem didn't exist yet.
   rtn = CreateFsNode(root_fs);
   if (rtn != 0)
     return rtn;
 
   rtn = CreateFsNode(dev_fs_);
   if (rtn != 0)
     return rtn;
 
   // Open the first three in order to get STDIN, STDOUT, STDERR
   int fd;
-  fd = open("/dev/stdin", O_RDONLY, 0);
+  fd = this->open("/dev/stdin", O_RDONLY, 0);
   if (fd < 0) {
     LOG_ERROR("failed to open /dev/stdin: %s", strerror(errno));
     return errno;
   }
   assert(fd == 0);
 
-  fd = open("/dev/stdout", O_WRONLY, 0);
+  fd = this->open("/dev/stdout", O_WRONLY, 0);
   if (fd < 0) {
     LOG_ERROR("failed to open /dev/stdout: %s", strerror(errno));
     return errno;
   }
   assert(fd == 1);
 
-  fd = open("/dev/stderr", O_WRONLY, 0);
+  fd = this->open("/dev/stderr", O_WRONLY, 0);
   if (fd < 0) {
     LOG_ERROR("failed to open /dev/sterr: %s", strerror(errno));
     return errno;
   }
   assert(fd == 2);
 
 #ifdef PROVIDES_SOCKET_API
   host_resolver_.Init(ppapi_);
 #endif
 
@@ skipping 1685 matching lines @@
     errno = ENOTSOCK;
     return -1;
   }
 
   return 0;
 }
 
 #endif  // PROVIDES_SOCKET_API
 
 }  // namespace_nacl_io