win: Add more memory regions to gathering of PEB

snapshot/win/process_reader_win.h

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // 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,
@@ skipping 68 matching lines @@
   //! \return `true` on success, indicating that this object will respond
   //!     validly to further method calls. `false` on failure. On failure, no
   //!     further method calls should be made.
   //!
   //! \sa ScopedProcessSuspend
   bool Initialize(HANDLE process, ProcessSuspensionState suspension_state);
 
   //! \return `true` if the target task is a 64-bit process.
   bool Is64Bit() const { return process_info_.Is64Bit(); }
 
+  //! \brief Attempts to read \a num_bytes bytes from the target process
+  //!     starting at address \a at into \a into.
+  //!
+  //! \return `true` if the entire region could be read, or `false` with an
+  //!     error logged.
+  //!
+  //! \sa ReadAvailableMemory
   bool ReadMemory(WinVMAddress at, WinVMSize num_bytes, void* into) const;
 
+  //! \brief Attempts to read \a num_bytes bytes from the target process
+  //!     starting at address \a at into \a into. If some of the specified range
+  //!     is not accessible, reads up to the first inaccessible byte.
+  //!
+  //! \return The actual number of bytes read.
+  //!
+  //! \sa ReadMemory
+  WinVMSize ReadAvailableMemory(WinVMAddress at,
+                                WinVMSize num_bytes,
+                                void* into) const;
+
   //! \brief Determines the target process' start time.
   //!
   //! \param[out] start_time The time that the process started.
   //!
   //! \return `true` on success, `false` on failure, with a warning logged.
   bool StartTime(timeval* start_time) const;
 
   //! \brief Determines the target process' execution time.
   //!
   //! \param[out] user_time The amount of time the process has executed code in
@@ skipping 26 matching lines @@
   ProcessSuspensionState suspension_state_;
   bool initialized_threads_;
   InitializationStateDcheck initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(ProcessReaderWin);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_SNAPSHOT_WIN_PROCESS_READER_WIN_H_