disable auto arch detect

src/patcherex2/targets/elf_arm_mimxrt1052.py

@@ -103,6 +103,10 @@ def finalize(self):
 
 
 class ElfArmMimxrt1052(ElfArmLinux):
+    @staticmethod
+    def detect_target(binary_path):
+        return False
+
     def get_binfmt_tool(self, binfmt_tool):
         binfmt_tool = binfmt_tool or "default"
         if binfmt_tool == "default":

src/patcherex2/targets/elf_leon3_bare.py

@@ -34,27 +34,12 @@ def _init_memory_analysis(self):
         unused_funcs = self.p.binary_analyzer.get_unused_funcs()
 
         for func in unused_funcs:
-            file_offset = self.p.binary_analyzer.mem_addr_to_file_offset(func["addr"])
-            block = MappedBlock(
-                file_offset,
-                func["addr"],
-                func["size"],
-                is_free=True,
-                flag=MemoryFlag.RX,
-            )
-            self.p.allocation_manager.add_block(block)
+            self.p.allocation_manager.add_free_space(func["addr"], func["size"], "RX")
 
 
 class ElfLeon3Bare(Target):
     @staticmethod
     def detect_target(binary_path):
-        with open(binary_path, "rb") as f:
-            magic = f.read(0x14)
-            # NOTE: probably should not default sparc to this target, but it's fine for now
-            if magic.startswith(b"\x7fELF") and magic.startswith(
-                b"\x00\x02", 0x12
-            ):  # EM_SPARC
-                return True
         return False
 
     def get_assembler(self, assembler):