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-rw-r--r--js/src/gdb/tests/test-unwind.py58
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/gdb/tests/test-unwind.py b/js/src/gdb/tests/test-unwind.py
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+++ b/js/src/gdb/tests/test-unwind.py
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+# Test the unwinder and the frame filter.
+
+import platform
+
+def do_unwinder_test():
+ # The unwinder is disabled by default for the moment. Turn it on to check
+ # that the unwinder works as expected.
+ import gdb
+ gdb.execute("enable unwinder .* SpiderMonkey")
+
+ run_fragment('unwind.simple', 'Something')
+
+ first = True
+ # The unwinder is a bit flaky still but should at least be able to
+ # recognize one set of entry and exit frames. This also tests to
+ # make sure we didn't end up solely in the interpreter.
+ found_entry = False
+ found_exit = False
+ found_main = False
+ found_inner = False
+ found_outer = False
+ frames = list(gdb.frames.execute_frame_filters(gdb.newest_frame(), 0, -1))
+ for frame in frames:
+ print("examining " + frame.function())
+ if first:
+ assert_eq(frame.function().startswith("Something"), True)
+ first = False
+ elif frame.function() == "<<JitFrame_Exit>>":
+ found_exit = True
+ elif frame.function() == "<<JitFrame_Entry>>":
+ found_entry = True
+ elif frame.function() == "main":
+ found_main = True
+ elif "unwindFunctionInner" in frame.function():
+ found_inner = True
+ elif "unwindFunctionOuter" in frame.function():
+ found_outer = True
+
+ # Had to have found a frame.
+ assert_eq(first, False)
+ # Had to have found main.
+ assert_eq(found_main, True)
+ # Had to have found the entry and exit frames.
+ assert_eq(found_exit, True)
+ assert_eq(found_entry, True)
+ # Had to have found the names of the two JS functions.
+ assert_eq(found_inner, True)
+ assert_eq(found_outer, True)
+
+# Only on the right platforms.
+if platform.machine() == 'x86_64' and platform.system() == 'Linux':
+ # Only test when gdb has the unwinder feature.
+ try:
+ import gdb.unwinder
+ import gdb.frames
+ do_unwinder_test()
+ except:
+ pass