Perform function lifting and inlining in arch plugins

This change allows architecture plugins to override the LiftFunction
callback to iterate a function's basic block list and lift entire
functions at once. This is required for architectures such as TMS320
C6x, which have non-traditional "delay slots" in that branches, loads,
and other instructions take multiple cycles to complete, and branch
instructions can reside within the delay slots of other branches.

2 files changed, 66 insertions, 0 deletions

diff --git a/defaultarch/CMakeLists.txt b/defaultarch/CMakeLists.txt
new file mode 100644
index 00000000..d355f317
--- /dev/null
+++ b/defaultarch/CMakeLists.txt
@@ -0,0 +1,50 @@
+cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
+
+project(defaultarch)
+
+if(NOT BN_INTERNAL_BUILD)
+	add_subdirectory(${PROJECT_SOURCE_DIR}/../.. ${PROJECT_BINARY_DIR}/api)
+endif()
+
+file(GLOB SOURCES CONFIGURE_DEPENDS
+	*.cpp
+	*.h)
+
+if(DEMO)
+	add_library(defaultarch STATIC ${SOURCES})
+else()
+	add_library(defaultarch SHARED ${SOURCES})
+endif()
+
+target_include_directories(defaultarch
+	PRIVATE ${PROJECT_SOURCE_DIR}
+)
+
+if(WIN32)
+	target_link_directories(defaultarch
+		PRIVATE ${BN_INSTALL_DIR})
+	target_link_libraries(defaultarch binaryninjaapi)
+else()
+	target_link_libraries(defaultarch binaryninjaapi)
+endif()
+
+if(UNIX AND NOT APPLE)
+	target_link_options(defaultarch PRIVATE "LINKER:--exclude-libs,ALL")
+endif()
+
+set_target_properties(defaultarch PROPERTIES
+	CXX_STANDARD 20
+	CXX_VISIBILITY_PRESET hidden
+	CXX_STANDARD_REQUIRED ON
+	C_STANDARD 99
+	C_STANDARD_REQUIRED ON
+    C_VISIBILITY_PRESET hidden
+    VISIBILITY_INLINES_HIDDEN ON
+	POSITION_INDEPENDENT_CODE ON)
+
+if(BN_INTERNAL_BUILD)
+	plugin_rpath(defaultarch)
+	set_target_properties(defaultarch PROPERTIES
+		LIBRARY_OUTPUT_DIRECTORY ${BN_CORE_PLUGIN_DIR}
+		RUNTIME_OUTPUT_DIRECTORY ${BN_CORE_PLUGIN_DIR})
+endif()
diff --git a/defaultarch/plugin.cpp b/defaultarch/plugin.cpp
new file mode 100644
index 00000000..3e6e66a8
--- /dev/null
+++ b/defaultarch/plugin.cpp
@@ -0,0 +1,16 @@
+#include "binaryninjaapi.h"
+#include "binaryninjacore.h"
+
+using namespace BinaryNinja;
+
+extern "C"
+{
+	BN_DECLARE_CORE_ABI_VERSION
+	BINARYNINJAPLUGIN bool CorePluginInit()
+	{
+		if (!BNArchitectureSetDefaultAnalyzeBasicBlocksCallback((void*)Architecture::DefaultAnalyzeBasicBlocksCallback))
+			return false;
+
+		return BNArchitectureSetDefaultLiftFunctionCallback((void*)Architecture::DefaultLiftFunctionCallback);
+	}
+}