Reset source dirs on load/attach

gui/TODO.txt

@@ -1,5 +1,3 @@
--Wipe source code dirs when attaching/loading file (otherwise unpredictable vuln.c)
-
 Test:
     -Shell spawn / multiple threads
     -Docker setup + attach

gui/pwndbg_gui.py

@@ -227,6 +227,9 @@ def select_file(self):
             # Before loading the file we want to set the correct tty for the inferior
             self.set_gdb_tty.emit(self.inferior_handler.tty)
             self.set_gdb_file_target_signal.emit([file_name])
+            # Reset dir so that GDB doesn't get confused when we load multiple programs with the same name / source
+            # file name
+            self.set_gdb_source_dir_signal.emit([""])
             # GDB only looks for source files in the cwd, so we additionally add the directory of the executable
             self.set_gdb_source_dir_signal.emit([str(Path(file_name).parent)])
             self.main_context.inferior_attached = False
@@ -341,6 +344,9 @@ def attach_to_pid(self, pid: int):
         Attach to the given (valid) PID. Also sets the search directories and updates the contexts after attaching
         :param pid: The PID of a running program
         """
+        # Reset dir so that GDB doesn't get confused when we load multiple programs with the same name / source
+        # file name
+        self.set_gdb_source_dir_signal.emit([""])
         # Add the directory of the executable as a search directory for source files for GDB
         process_path = Path(psutil.Process(pid).exe()).parent.resolve()
         self.set_gdb_source_dir_signal.emit([str(process_path)])