open-source-silicon.dev

<https://github.com/The-OpenROAD-Project/OpenLane/issues/1935|#1935 TritonCTS crashes with multiple clocks>
Issue created by <https://github.com/mo-hosni|mo-hosni>
*Description*

TritonCTS fails crashes with no specific error.  
Defining the clocks `dll_clk` and `dll_clk90` causes the crash. I tried removing the `.lib` files of the DLL macro that produces these clocks and it still crashes.

*Expected Behavior*

CTS creating clock trees for `dll_clk` and `dll_clk90`.

*Environment report*

```
Kernel: Linux v6.2.0-26-generic
Distribution: ubuntu 23.04
Python: v3.11.4 (OK)
Container Engine: docker v24.0.5 (OK)
OpenLane Git Version: 01e67230f35aa4cd08ef33a9f8df8a83f578b710
pip: INSTALLED
python-venv: INSTALLED
---
PDK Version Verification Status: OK
---
Git Log (Last 3 Commits)

01e67230 2023-07-25T13:53:21+03:00 [BOT] Update magic (#1914) - Openlane Bot -  (HEAD -&gt; master, tag: 2023.07.26, origin/master, origin/HEAD)
157a6505 2023-07-25T13:02:39+03:00 Update Documentation (#1917) - Mohamed Gaber -  ()
f6e50abd 2023-07-24T15:20:03+03:00 PIP Version Ranges (#1916) - Mohamed Gaber -  (tag: 2023.07.25)
---
Git Remotes

origin  git@github.com:The-OpenROAD-Project/OpenLane.git (fetch)
origin  git@github.com:The-OpenROAD-Project/OpenLane.git (push)
```

*Reproduction material*

<https://github.com/The-OpenROAD-Project/OpenLane/files/12280117/issue_reproducible.part1.zip|issue_reproducible.part1.zip>  
<https://github.com/The-OpenROAD-Project/OpenLane/files/12280146/issue_reproducible.part2.zip|issue_reproducible.part2.zip>

*Relevant log output*

```
[INFO CTS-0007] Net "gpio_in[38]" found for clock "clk".
[INFO CTS-0010]  Clock net "gpio_in[38]" has 3 sinks.
[WARNING CTS-0041] Net "_02778_" has 1 sinks. Skipping...
[INFO CTS-0007] Net "dll_clk" found for clock "dll_clk".
Signal 11 received
Stack trace:
 0# 0x0000000000D429A7 in openroad
 1# 0x00007FABFB640400 in /lib64/libc.so.6
 2# odb::dbBTerm::getConstName() in openroad
 3# cts::TritonCTS::initClock(odb::dbNet*, std::string const&amp;, cts::TreeBuilder*) in openroad
 4# cts::TritonCTS::initOneClockTree(odb::dbNet*, std::string const&amp;, cts::TreeBuilder*) in openroad
 5# cts::TritonCTS::populateTritonCTS() in openroad
 6# cts::TritonCTS::runTritonCts() in openroad
 7# 0x000000000123E23F in openroad
 8# 0x00007FAC00174EB2 in /lib64/libtcl8.5.so
 9# 0x00007FAC001B936C in /lib64/libtcl8.5.so
```
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>

<https://github.com/The-OpenROAD-Project/OpenLane/issues/1935|#1935 TritonCTS crashes with multiple clocks>
Issue closed as completed by <https://github.com/maliberty|maliberty>
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>

<https://github.com/The-OpenROAD-Project/OpenLane/issues/1935|#1935 TritonCTS crashes with multiple clocks>
Issue reopened by <https://github.com/kareefardi|kareefardi>
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>

<https://github.com/The-OpenROAD-Project/OpenLane/issues/1935|#1935 TritonCTS crashes with multiple clocks>
Issue closed as completed by <https://github.com/donn|donn>
<https://github.com/The-OpenROAD-Project/OpenLane|The-OpenROAD-Project/OpenLane>