Add a new API to get the original image base of the binary view. Fix #4861

Author: xusheng6

binaryninjaapi.h

@@ -4274,13 +4274,27 @@ namespace BinaryNinja {
 		*/
 		uint64_t GetNextValidOffset(uint64_t offset) const;
 
+		/*! GetOriginalBase queries for the original image base in the BinaryView, unaffected by any rebasing operations
+
+		    \return the original image base of the BinaryView
+		*/
+		uint64_t GetOriginalBase() const;
+
+		/*! SetOriginalBase sets the original image base in the BinaryView, unaffected by any rebasing operations.
+		 * This is only intended to be used by Binary View implementations to provide this value. Regular users should
+		 * NOT change this value.
+
+		    \param base the original image base of the binary view
+		*/
+		void SetOriginalBase(uint64_t base);
+
 		/*! GetStart queries for the first valid virtual address in the BinaryView
 
 		    \return the start of the BinaryView
 		*/
 		uint64_t GetStart() const;
 
-		/*! GetEnd queries for the first valid virtual address in the BinaryView
+		/*! GetEnd queries for the end virtual address of the BinaryView
 
 		    \return the end of the BinaryView
 		*/

binaryninjacore.h

@@ -37,14 +37,14 @@
 // Current ABI version for linking to the core. This is incremented any time
 // there are changes to the API that affect linking, including new functions,
 // new types, or modifications to existing functions or types.
-#define BN_CURRENT_CORE_ABI_VERSION 44
+#define BN_CURRENT_CORE_ABI_VERSION 45
 
 // Minimum ABI version that is supported for loading of plugins. Plugins that
 // are linked to an ABI version less than this will not be able to load and
 // will require rebuilding. The minimum version is increased when there are
 // incompatible changes that break binary compatibility, such as changes to
 // existing types or functions.
-#define BN_MINIMUM_CORE_ABI_VERSION 44
+#define BN_MINIMUM_CORE_ABI_VERSION 45
 
 #ifdef __GNUC__
 	#ifdef BINARYNINJACORE_LIBRARY
@@ -3409,6 +3409,8 @@ extern "C"
 	BINARYNINJACOREAPI bool BNIsOffsetExternSemantics(BNBinaryView* view, uint64_t offset);
 	BINARYNINJACOREAPI bool BNIsOffsetWritableSemantics(BNBinaryView* view, uint64_t offset);
 	BINARYNINJACOREAPI uint64_t BNGetNextValidOffset(BNBinaryView* view, uint64_t offset);
+	BINARYNINJACOREAPI uint64_t BNGetOriginalBase(BNBinaryView* view);
+	BINARYNINJACOREAPI void BNSetOriginalBase(BNBinaryView* view, uint64_t base);
 	BINARYNINJACOREAPI uint64_t BNGetStartOffset(BNBinaryView* view);
 	BINARYNINJACOREAPI uint64_t BNGetEndOffset(BNBinaryView* view);
 	BINARYNINJACOREAPI uint64_t BNGetViewLength(BNBinaryView* view);

binaryview.cpp

@@ -1717,6 +1717,18 @@ uint64_t BinaryView::GetNextValidOffset(uint64_t offset) const
 }
 
 
+uint64_t BinaryView::GetOriginalBase() const
+{
+	return BNGetOriginalBase(m_object);
+}
+
+
+void BinaryView::SetOriginalBase(uint64_t base)
+{
+	return BNSetOriginalBase(m_object, base);
+}
+
+
 uint64_t BinaryView::GetStart() const
 {
 	return BNGetStartOffset(m_object);

python/binaryview.py

@@ -2509,6 +2509,16 @@ def file(self) -> 'filemetadata.FileMetadata':
 		""":py:class:`~binaryninja.filemetadata.FileMetadata` backing the BinaryView """
 		return self._file
 
+	@property
+	def original_base(self) -> int:
+		"""Original image base of the binary"""
+		return core.BNGetOriginalBase(self.handle)
+
+	@original_base.setter
+	def original_base(self, base: int) -> None:
+		"""Set original image base of the binary. Only intended for binary view implementations"""
+		return core.BNSetOriginalBase(self.handle, base)
+
 	@property
 	def start(self) -> int:
 		"""Start offset of the binary (read-only)"""