The id of an object is not necessarily related in any way to the address
of an object in Python.
In RPython, you can convert a function to a low-level function pointer
with llhelper() from rpython.rtyper.annlowlevel. You can call it like
this:
fptr_type = lltype.Ptr(lltype.FuncType([], lltype.Void))
fptr = llhelper(fptr_type, func)
Depending on what you want to do with the function address exactly, you
might need to cast the function pointer to a RPython "Address" with
cast_ptr_to_adr() from rpython.rtyper.lltypesystem.llmemory.
On 2016-12-30 14:42, Shubha Ramani via pypy-dev wrote:
It's not a bad idea for me. I'm hooking up to a tool made by intel
called "vtune" which requires the function name, function size and
function address from the original python script code. I got the first
two from Python reflection (the way VmProf does it) but I need the
third (original script function address). Is __repr__ supported in
Rpython ? The string returned by __repr__ contains the Python address
at least in Python. If id() doesn't work but __repr__ does then I can
use it in the overloaded execute_frame and that should be fine.
Shubha
On Dec 29, 2016, at 4:29 PM, Ryan Gonzalez <rym...@gmail.com> wrote:
What exactly are you trying to do. Using id to get the address of a
function is usually a bad idea...
--
Ryan (ライアン)
Yoko Shimomura > ryo (supercell/EGOIST) > Hiroyuki Sawano >> everyone
else
http://kirbyfan64.github.io/
On Dec 29, 2016 1:19 PM, "Shubha Ramani via pypy-dev"
<pypy-dev@python.org> wrote:
What can I use then ? I need the address of the function ?
[translation:ERROR] Exception: cannot use id() in RPython; see
objectmodel.compute_xxx()
Processing block:
block@19 is a <class 'rpython.flowspace.flowcontext.SpamBlock'>
in (pypy.module._vtune.interp_vtune:28)_get_full_name
containing the following operations:
buf_0 = simple_call((type RStringIO))
v943 = getattr(buf_0, ('write'))
v944 = getattr(pycode_0, ('co_code'))
v945 = simple_call(v943, v944)
v946 = getattr(buf_0, ('getsize'))
size_code_0 = simple_call(v946)
v947 = getattr(pycode_0, ('co_name'))
id_func_0 = id(v947)
v948 = getattr(pycode_0, ('co_name'))
v949 = simple_call((function _safe), v948)
v950 = getattr(pycode_0, ('co_firstlineno'))
v951 = getattr(pycode_0, ('co_filename'))
v952 = simple_call((function _safe), v951)
v953 = newtuple(v949, v950, v952, size_code_0, id_func_0)
v954 = mod(('vtune:%s:%d:%s:%d:%d'), v953)
--end--
[translation] start debugger...
> /opt/shubha_vtune_pypy/rpython/annotator/unaryop.py(188)id()
-> raise Exception("cannot use id() in RPython; "
(Pdb+)
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