Add ElfWriter::GetStream().

This will be used for writing the OatHeader which is
currently oddly written through the .text stream.

Also move the error delaying output stream out of the
ElfBuilder<> to its own file and move all output stream
files to compiler/linker/.

Change-Id: I00db4e33ed80ac4757ec459946c7b5ae014a3a2e

1 files changed, 40 insertions, 0 deletions

diff --git a/compiler/linker/file_output_stream.cc b/compiler/linker/file_output_stream.cc
new file mode 100644
index 0000000000..bbfbdfdca8
--- /dev/null
+++ b/compiler/linker/file_output_stream.cc
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "file_output_stream.h"
+
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "base/unix_file/fd_file.h"
+
+namespace art {
+
+FileOutputStream::FileOutputStream(File* file) : OutputStream(file->GetPath()), file_(file) {}
+
+bool FileOutputStream::WriteFully(const void* buffer, size_t byte_count) {
+  return file_->WriteFully(buffer, byte_count);
+}
+
+off_t FileOutputStream::Seek(off_t offset, Whence whence) {
+  return lseek(file_->Fd(), offset, static_cast<int>(whence));
+}
+
+bool FileOutputStream::Flush() {
+  return file_->Flush() == 0;
+}
+
+}  // namespace art