[LibOS] Test-cases for SPLRB (2)

* New adverserial ones

Signed-off-by: g2flyer <[email protected]>

libos/test/fs/gdb_helper.py

@@ -0,0 +1,18 @@
+import gdb
+import re
+import shutil
+
+def adversary_do(cmd):
+    # extract interesting info from context
+    test_function=gdb.selected_frame().older().name()
+    operation=gdb.selected_frame().name()
+    internal_path=gdb.selected_frame().read_var('path').string()
+    external_path=re.sub(r'/tmp/enc_input/', './tmp/enc_input/', internal_path)
+    external_path_saved=external_path+"._saved_"
+
+    # execute and report result for pytest digestion
+    try:
+        cmd(external_path, external_path_saved)
+        print(f"OK: {test_function} in {operation}({internal_path})")
+    except:
+        print(f"FAIL: {test_function} in {operation}({internal_path})")

libos/test/fs/meson.build

@@ -42,6 +42,7 @@ tests = {
     },
     'open_close': {},
     'open_flags': {},
+    'pf_rollback': {},
     'read_write': {},
     'read_write_mmap': {},
     'seek_tell': {},