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-rw-r--r--include/bcinfo/BitcodeWrapper.h91
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diff --git a/include/bcinfo/BitcodeWrapper.h b/include/bcinfo/BitcodeWrapper.h
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+/*
+ * Copyright 2011, 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.
+ */
+
+#ifndef __ANDROID_BCINFO_BITCODEWRAPPER_H__
+#define __ANDROID_BCINFO_BITCODEWRAPPER_H__
+
+#include <cstddef>
+#include <stdint.h>
+
+namespace bcinfo {
+
+struct BCWrapperHeader {
+ uint32_t Magic;
+ uint32_t Version;
+ uint32_t BitcodeOffset;
+ uint32_t BitcodeSize;
+ uint32_t HeaderVersion;
+ uint32_t TargetAPI;
+};
+
+enum BCFileType {
+ BC_NOT_BC = 0,
+ BC_WRAPPER = 1,
+ BC_RAW = 2
+};
+
+class BitcodeWrapper {
+ private:
+ enum BCFileType mFileType;
+ const char *mBitcode;
+ const char *mBitcodeEnd;
+ size_t mBitcodeSize;
+
+ struct BCWrapperHeader mBCHeader;
+
+ public:
+ /**
+ * Reads wrapper information from \p bitcode.
+ *
+ * \param bitcode - input bitcode string.
+ * \param bitcodeSize - length of \p bitcode string (in bytes).
+ */
+ BitcodeWrapper(const char *bitcode, size_t bitcodeSize);
+
+ ~BitcodeWrapper();
+
+ /**
+ * Attempt to unwrap the target bitcode.
+ *
+ * \return true on success and false if an error occurred.
+ */
+ bool unwrap();
+
+ /**
+ * \return type of bitcode file.
+ */
+ enum BCFileType getBCFileType() const {
+ return mFileType;
+ }
+
+ /**
+ * \return header version of bitcode wrapper. This can only be 0 currently.
+ */
+ uint32_t getHeaderVersion() const {
+ return mBCHeader.HeaderVersion;
+ }
+
+ /**
+ * \return target API version of this script.
+ */
+ uint32_t getTargetAPI() const {
+ return mBCHeader.TargetAPI;
+ }
+};
+
+} // namespace bcinfo
+
+#endif // __ANDROID_BCINFO_BITCODEWRAPPER_H__