large enough instead of creating one big via along the horizontal
cell power lines, we create one big VIA at each end. To avoid to
create too massive obstructions.
But the thresold was too high for cmos45, leading to short with
the clock tree trunk.
* Change: In bootstrap/coriolisEnv.py, when all tries to locate the
installation root in predefined locations, try the directory the
script is installed in.
This allows for a user to use an installation made in another
user's account.
* Bug: In Anabatic::_desaturate(), the set of invalidated GCells was never
cleared between iterations of desaturated GCells. This was not a
memory leak per se because, in the end, the set was freed. But it did
induce a gigantic bloating in memory. This finally explain the strange
slow down in that stage.
Detected in ls180+cmos45.
* Change: In Anabatic::GCell, add a flag for each depth to avoid
desaturating twice the same GCell (maybe not needed now that the
bug is corrected, but it ensure a no-looping).
* Bug: In cumulus/plugins.block.configuration.GaugeConf.expandMinArea(),
The minimal length of the segment intermediate wires where computed
for the minimal area using an integer division ( // ), which is
stupid for less than 1.0 values. They are real quantities at this
point...
This was making the DRC of ls180 failing.
Note: We don't suppress warnings due to unused variables or functions,
as we may need them later or in debug mode...
* Change: In Hurricane::DBo::~DBo, add a noexcept(false) because
constructed by default destructor of derived classes seems to
loosen it. The right solution whould be to explicitely define
all virtual destructors (too lazy for now).
* Change: In Viewer::Script, replace the deprecated
PyModule_GetFilename() by PyModule_GetFilenameObject(), Unicode
support again...
* Change: In bootstrap/coriolisEnv.py, the script was looking to
pythonX.Y (like "python2.7" or "python3.6") only. Now added
"major" only directories like "python2" or "python3".
* Bug: In Hurricane::Backtrace(), the std::regex supplied by gcc 4.8.5
seems to be buggy. So, for now, to compile on my reference system,
revert to C POSIX.
* Bug: In Anabatic::AntennaProtect, if the diode cell exists *but* the
maximum wire length for a diode is *not* defined (so zero) cancel
the diode protection instead of making a divide by zero.
* Change: In Isobar3::PyWrapper, C++ exceptions where not catcheds,
forgot to call exceptionWrapper().
* Change: In Isobar3, remove unused pyToC<>() flavor where T is a
simple pointer and the argument is also a simple pointer, does
not make sense.
* New: In hurricane/configuration, the Python/C template wrapper has
now all the needed features to mass-migrate Hurricane and the
ToolEngines.
The new Hurricane module is named Hurricane3 so it does not
collides with the old one which is still used. Will do the
same for all ToolEngines Python wrappers until migration is
complete.
* New: In unittests/python/, create very basic unit tests for the
Configuration & Hurricane new template wrapper.
Note: It is almost impossible to use valgrind on them because
it doesn't recognize correctly Python allocation mechanism.
To make it work, both valgrind & Python needs to be
recompiled with special options...
* New: Python/C++ API level:
* Write a new C++/template wrapper to get rid of boost::python
* The int & long Python type are now merged. So a C/C++ level,
it became "PyLong_X" (remove "PyInt_X") and at Python code
level, it became "int" (remove "long").
* Change: VLSISAPD finally defunct.
* Configuration is now integrated as a Hurricane component,
makes use of the new C++/template wrapper.
* vlsisapd is now defunct. Keep it in the source for now as
some remaining non essential code may have to be ported in
the future.
* Note: Python code (copy of the migration howto):
* New print function syntax print().
* Changed "dict.has_key(k)" for "k" in dict.
* Changed "except Exception, e" for "except Exception as e".
* The division "/" is now the floating point division, even if
both operand are integers. So 3/2 now gives 1.5 and no longer 1.
The integer division is now "//" : 1 = 3//2. So have to carefully
review the code to update. Most of the time we want to use "//".
We must never change to float for long that, in fact, represents
DbU (exposed as Python int type).
* execfile() must be replaced by exec(open("file").read()).
* iter().__next__() becomes iter(x).__next__().
* __getslice__() has been removed, integrated to __getitem__().
* The formating used for str(type(o)) has changed, so In Stratus,
have to update them ("<class 'MyClass'>" instead of "MyClass").
* the "types" module no longer supply values for default types
like str (types.StringType) or list (types.StringType).
Must use "isinstance()" where they were occuring.
* Remove the 'L' to indicate "long integer" (like "12L"), now
all Python integer are long.
* Change in bootstrap:
* Ported Coriolis builder (ccb) to Python3.
* Ported Coriolis socInstaller.py to Python3.
* Note: In PyQt4+Python3, QVariant no longer exists. Use None or
directly convert using the python syntax: bool(x), int(x), ...
By default, it is a string (str).
* Note: PyQt4 bindings & Python3 under SL7.
* In order to compile user's must upgrade to my own rebuild of
PyQt 4 & 5 bindings 4.19.21-1.el7.soc.
* Bug: In cumulus/plugins.block.htree.HTree.splitNet(), set the root
buffer of the H-Tree to the original signal (mainly: top clock).
Strangely, it was only done when working in full chip mode.
Jean-Paul Chaput
Las Safin