Fix recursive loop on architectures where flags register is a dynam…

…ic value (#1065)

## Description

For (at least) ARM and ARM64`$arch.ptrsize` is calculated dynamically from CSPR flags, and invokes `parse_address`. However, `parse_address` requires `ptrsize` to be set to determine the alignment. So we end up in an infinite loop. Which breaks almost everything.

This commit fixes it by simply replacing `to_unsigned_long` with `int` is perfectly fine for this situation, which is what the PR does.

gef.py

@@ -3841,7 +3841,7 @@ def parse_address(address: str) -> int:
     """Parse an address and return it as an Integer."""
     if is_hex(address):
         return int(address, 16)
-    return to_unsigned_long(gdb.parse_and_eval(address))
+    return int(gdb.parse_and_eval(address))
 
 
 def is_in_x86_kernel(address: int) -> bool:

tests/commands/entry_break.py

@@ -13,9 +13,12 @@ def test_cmd_entry_break(self):
         gdb = self._gdb
 
         # run once (ok)
-        res = gdb.execute("entry-break", to_string=True).strip()
-        assert res.startswith("[+] Breaking at")
+        lines = (gdb.execute("entry-break", to_string=True) or "").strip().splitlines()
+
+        # expect the entry point string pattern
+        assert len(lines) >= 2
+        assert any(line.startswith("[+] Breaking at entry-point") for line in lines)
 
         # re-run while session running (nok)
-        res = gdb.execute("entry-break", to_string=True).strip()
+        res = (gdb.execute("entry-break", to_string=True) or "").strip()
         assert "gdb is already running" in res

tests/commands/highlight.py

@@ -13,22 +13,22 @@ class HighlightCommand(RemoteGefUnitTestGeneric):
     def test_cmd_highlight(self):
         gdb = self._gdb
 
+        gdb.execute("start")
+
         gdb.execute("gef config context.layout stack")
         gdb.execute("gef config gef.disable_color 0")
-        gdb.execute("start")
 
         for cmd in [
             "highlight add 41414141 yellow",
             "highlight add 42424242 blue",
             "highlight add 43434343 green",
             "highlight add 44444444 pink",
             'patch string $sp "AAAABBBBCCCCDDDD"',
-            "hexdump qword $sp -s 2",
         ]:
             gdb.execute(cmd)
 
-        res = gdb.execute("context", to_string=True)
-        self.assertIn(f"{Color.YELLOW.value}41414141{Color.NORMAL.value}", res)
-        self.assertIn(f"{Color.BLUE.value}42424242{Color.NORMAL.value}", res)
-        self.assertIn(f"{Color.GREEN.value}43434343{Color.NORMAL.value}", res)
-        self.assertIn(f"{Color.PINK.value}44444444{Color.NORMAL.value}", res)
+        res: str = (gdb.execute("hexdump qword $sp -s 2", to_string=True) or "").strip()
+        assert f"{Color.YELLOW.value}41414141{Color.NORMAL.value}" in res
+        assert f"{Color.BLUE.value}42424242{Color.NORMAL.value}" in res
+        assert f"{Color.GREEN.value}43434343{Color.NORMAL.value}" in res
+        assert f"{Color.PINK.value}44444444{Color.NORMAL.value}" in res