Search for realpath in remote sessions.

gef.py

@@ -689,10 +689,30 @@ def size(self) -> int:
             raise AttributeError
         return self.page_end - self.page_start
 
+    def search_for_realpath(self) -> str:
+        # This function is a workaround for gdb bug #23764
+        # path might be wrong for remote sessions, so try a simple search for files
+        # that aren't found at the path indicated, which should be canonical.
+
+        # First, try the canonical path in the remote session root.
+        candidate1 = f"{gef.session.remote.root}/{self.path}"
+        if pathlib.Path(candidate1).is_file():
+            return candidate1
+
+        # On some systems, /lib(64) might be a symlink to /usr/lib(64), so try removing
+        # the /usr prefix.
+        if self.path.startswith("/usr"):
+            candidate = f"{gef.session.remote.root}/{self.path[4:]}"
+            if pathlib.Path(candidate).is_file():
+                return candidate
+
+        # Base case, return the original realpath
+        return candidate1
+
     @property
     def realpath(self) -> str:
         # when in a `gef-remote` session, realpath returns the path to the binary on the local disk, not remote
-        return self.path if gef.session.remote is None else f"{gef.session.remote.root}/{self.path}"
+        return self.path if gef.session.remote is None else self.search_for_realpath()
 
     def __str__(self) -> str:
         return (f"Section(start={self.page_start:#x}, end={self.page_end:#x}, "