forked from open-telemetry/opentelemetry-ebpf-profiler
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
interpreter: add support for Python 3.13 (open-telemetry#190)
Signed-off-by: Florian Lehner <dev@der-flo.net> Signed-off-by: Florian Lehner <florian.lehner@elastic.co>
- Loading branch information
Showing
2 changed files
with
89 additions
and
3 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| """ | ||
| gdb python script for dumping Python offsets. | ||
| """ | ||
|
|
||
| def no_member_to_none(fn): | ||
| """Decorator translating errors about missing field to `None`.""" | ||
| def wrap(*args, **kwargs): | ||
| try: | ||
| return fn(*args, **kwargs) | ||
| except gdb.error as e: | ||
| if 'no member named' in str(e): | ||
| return None | ||
| raise | ||
| return wrap | ||
|
|
||
| @no_member_to_none | ||
| def offset_of(ty, field): | ||
| for ns in ['', 'struct ', 'union ']: | ||
| try: | ||
| return int(gdb.parse_and_eval(f'(uintptr_t)(&(({ns}{ty}*)0)->{field})')) | ||
| except gdb.error: | ||
| pass | ||
| return None | ||
|
|
||
| @no_member_to_none | ||
| def size_of(ty): | ||
| for ns in ['', 'struct ', 'union ']: | ||
| try: | ||
| return int(gdb.parse_and_eval(f'sizeof({ns} {ty})')) | ||
| except gdb.error: | ||
| pass | ||
| return None | ||
|
|
||
| fields = { | ||
| 'PyTypeObject.BasicSize': offset_of('_typeobject', 'tp_basicsize'), | ||
| 'PyTypeObject.Members': offset_of('_typeobject', 'tp_members'), | ||
|
|
||
| 'PyMemberDef.Sizeof': size_of('PyMemberDef'), | ||
| 'PyMemberDef.Name': offset_of('PyMemberDef', 'name'), | ||
| 'PyMemberDef.Offset': offset_of('PyMemberDef', 'offset'), | ||
|
|
||
| 'PyASCIIObject.Data': offset_of('PyASCIIObject', 'data'), | ||
|
|
||
| 'PyCodeObject.Sizeof': size_of('PyCodeObject'), | ||
| 'PyCodeObject.ArgCount': offset_of('PyCodeObject', 'co_argcount'), | ||
| 'PyCodeObject.KwOnlyArgCount': offset_of('PyCodeObject', 'co_kwonlyargcount'), | ||
| 'PyCodeObject.Flags': offset_of('PyCodeObject', 'co_flags'), | ||
| 'PyCodeObject.FirstLineno': offset_of('PyCodeObject', 'co_firstlineno'), | ||
| 'PyCodeObject.Filename': offset_of('PyCodeObject', 'co_filename'), | ||
| 'PyCodeObject.Name': offset_of('PyCodeObject', 'co_name'), | ||
| 'PyCodeObject.Lnotab': offset_of('PyCodeObject', 'co_lnotab'), | ||
| 'PyCodeObject.Linetable': offset_of('PyCodeObject', 'co_linetable'), | ||
| 'PyCodeObject.QualName': offset_of('PyCodeObject', 'co_qualname'), | ||
|
|
||
| 'PyVarObject.ObSize': offset_of('PyVarObject', 'ob_size'), | ||
|
|
||
| 'PyBytesObject.Sizeof': size_of('PyBytesObject'), | ||
|
|
||
| 'PyThreadState.Frame': offset_of('_ts', 'frame'), | ||
| 'PyThreadState.cFrame': offset_of('_ts', 'current_frame'), | ||
|
|
||
| 'PyFrameObject.Back': offset_of('PyFrameObject', 'f_back'), | ||
| 'PyFrameObject.Code': offset_of('PyFrameObject', 'f_code'), | ||
| 'PyFrameObject.LastI': offset_of('PyFrameObject', 'f_lasti'), | ||
|
|
||
| 'PyInterpreterFrame.Previous': offset_of('_PyInterpreterFrame', 'previous'), | ||
| 'PyInterpreterFrame.Prev_Instr': offset_of('_PyInterpreterFrame', 'prev_instr'), | ||
| 'PyInterpreterFrame.Owner': offset_of('_PyInterpreterFrame', 'owner'), | ||
|
|
||
| 'PyCFrame.CurrentFrame': offset_of('_PyCFrame', 'current_frame'), | ||
| } | ||
|
|
||
| for field, value in fields.items(): | ||
| if value is None: | ||
| print(f"vms.{field}: <field not present>") | ||
| else: | ||
| print(f"vms.{field}: dec={value} hex=0x{value:x}") |