1 files changed, 181 insertions, 0 deletions
diff --git a/externals/breakpad/src/common/dwarf/bytereader-inl.h b/externals/breakpad/src/common/dwarf/bytereader-inl.h
new file mode 100644
index 0000000000..2102648404
--- /dev/null
+++ b/externals/breakpad/src/common/dwarf/bytereader-inl.h
@@ -0,0 +1,181 @@
+// Copyright 2006 Google LLC
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google LLC nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef UTIL_DEBUGINFO_BYTEREADER_INL_H__
+#define UTIL_DEBUGINFO_BYTEREADER_INL_H__
+
+#include "common/dwarf/bytereader.h"
+
+#include <assert.h>
+#include <stdint.h>
+
+namespace google_breakpad {
+
+inline uint8_t ByteReader::ReadOneByte(const uint8_t* buffer) const {
+  return buffer[0];
+}
+
+inline uint16_t ByteReader::ReadTwoBytes(const uint8_t* buffer) const {
+  const uint16_t buffer0 = buffer[0];
+  const uint16_t buffer1 = buffer[1];
+  if (endian_ == ENDIANNESS_LITTLE) {
+    return buffer0 | buffer1 << 8;
+  } else {
+    return buffer1 | buffer0 << 8;
+  }
+}
+
+inline uint64_t ByteReader::ReadThreeBytes(const uint8_t* buffer) const {
+  const uint32_t buffer0 = buffer[0];
+  const uint32_t buffer1 = buffer[1];
+  const uint32_t buffer2 = buffer[2];
+  if (endian_ == ENDIANNESS_LITTLE) {
+    return buffer0 | buffer1 << 8 | buffer2 << 16;
+  } else {
+    return buffer2 | buffer1 << 8 | buffer0 << 16;
+  }
+}
+
+inline uint64_t ByteReader::ReadFourBytes(const uint8_t* buffer) const {
+  const uint32_t buffer0 = buffer[0];
+  const uint32_t buffer1 = buffer[1];
+  const uint32_t buffer2 = buffer[2];
+  const uint32_t buffer3 = buffer[3];
+  if (endian_ == ENDIANNESS_LITTLE) {
+    return buffer0 | buffer1 << 8 | buffer2 << 16 | buffer3 << 24;
+  } else {
+    return buffer3 | buffer2 << 8 | buffer1 << 16 | buffer0 << 24;
+  }
+}
+
+inline uint64_t ByteReader::ReadEightBytes(const uint8_t* buffer) const {
+  const uint64_t buffer0 = buffer[0];
+  const uint64_t buffer1 = buffer[1];
+  const uint64_t buffer2 = buffer[2];
+  const uint64_t buffer3 = buffer[3];
+  const uint64_t buffer4 = buffer[4];
+  const uint64_t buffer5 = buffer[5];
+  const uint64_t buffer6 = buffer[6];
+  const uint64_t buffer7 = buffer[7];
+  if (endian_ == ENDIANNESS_LITTLE) {
+    return buffer0 | buffer1 << 8 | buffer2 << 16 | buffer3 << 24 |
+      buffer4 << 32 | buffer5 << 40 | buffer6 << 48 | buffer7 << 56;
+  } else {
+    return buffer7 | buffer6 << 8 | buffer5 << 16 | buffer4 << 24 |
+      buffer3 << 32 | buffer2 << 40 | buffer1 << 48 | buffer0 << 56;
+  }
+}
+
+// Read an unsigned LEB128 number.  Each byte contains 7 bits of
+// information, plus one bit saying whether the number continues or
+// not.
+
+inline uint64_t ByteReader::ReadUnsignedLEB128(const uint8_t* buffer,
+                                             size_t* len) const {
+  uint64_t result = 0;
+  size_t num_read = 0;
+  unsigned int shift = 0;
+  uint8_t byte;
+
+  do {
+    byte = *buffer++;
+    num_read++;
+
+    result |= (static_cast<uint64_t>(byte & 0x7f)) << shift;
+
+    shift += 7;
+
+  } while (byte & 0x80);
+
+  *len = num_read;
+
+  return result;
+}
+
+// Read a signed LEB128 number.  These are like regular LEB128
+// numbers, except the last byte may have a sign bit set.
+
+inline int64_t ByteReader::ReadSignedLEB128(const uint8_t* buffer,
+                                          size_t* len) const {
+  int64_t result = 0;
+  unsigned int shift = 0;
+  size_t num_read = 0;
+  uint8_t byte;
+
+  do {
+      byte = *buffer++;
+      num_read++;
+      result |= (static_cast<uint64_t>(byte & 0x7f) << shift);
+      shift += 7;
+  } while (byte & 0x80);
+
+  if ((shift < 8 * sizeof (result)) && (byte & 0x40))
+    result |= -((static_cast<int64_t>(1)) << shift);
+  *len = num_read;
+  return result;
+}
+
+inline uint64_t ByteReader::ReadOffset(const uint8_t* buffer) const {
+  assert(this->offset_reader_);
+  return (this->*offset_reader_)(buffer);
+}
+
+inline uint64_t ByteReader::ReadAddress(const uint8_t* buffer) const {
+  assert(this->address_reader_);
+  return (this->*address_reader_)(buffer);
+}
+
+inline void ByteReader::SetCFIDataBase(uint64_t section_base,
+                                       const uint8_t* buffer_base) {
+  section_base_ = section_base;
+  buffer_base_ = buffer_base;
+  have_section_base_ = true;
+}
+
+inline void ByteReader::SetTextBase(uint64_t text_base) {
+  text_base_ = text_base;
+  have_text_base_ = true;
+}
+
+inline void ByteReader::SetDataBase(uint64_t data_base) {
+  data_base_ = data_base;
+  have_data_base_ = true;
+}
+
+inline void ByteReader::SetFunctionBase(uint64_t function_base) {
+  function_base_ = function_base;
+  have_function_base_ = true;
+}
+
+inline void ByteReader::ClearFunctionBase() {
+  have_function_base_ = false;
+}
+
+}  // namespace google_breakpad
+
+#endif  // UTIL_DEBUGINFO_BYTEREADER_INL_H__