~ Avoid using `/dev/null` for writing DEF files (it tries to create a temp file and fail)
~ PDK now has a default value of sky130A even outside the Makefile
~ PDK_ROOT now set automatically if Volare is installed
~ Upgrade to a newer version of OpenLane 2, which in turns uses `nix-eda`
~ Format nix packages using Alejandra
~ OpenROAD scripts now read liberty files before database files (they are linked together when the database is read)
~ Update Readme to remove Colab and add banner directing people to OpenLane 2
+ Repository is now a Nix flake
~ Change all invocations of `openroad -python` to use `run_odbpy_script` for consistency
~ Change build system from ad-hoc to Nix, still producing a Docker image as a final result
~ Update KLayout scripts to use `klayout-pymod` or properly parse commandline arguments
~ `open_pdks` -> `bdc9412` to match OpenLane 2
- Remove local installer; `nix run .` will run OpenLane natively
- Remove `cvc_rv` utility (upstream no longer willing to support it as part of the flow)
~ Fix bug with OpenLane docker image builder copying run folders
- Remove BM64 test design
~ Update a couple of CI designs enabling RUN_HEURISTIC_DIODE_INSERTION and DIODE_ON_PORTS
~ Move OpenROAD DPL logic and API calls to scripts/openroad/common/dpl.tcl and update scripts/openroad/dpl.tcl accordingly
~ Move OpenROAD GRT logic and API calls to scripts/openroad/common/grt.tcl and update scripts/openroad/grt.tcl accordingly
~ Use `repair_antennas.tcl` instead of running it inside GRT script
+ Add scripts/openroad/repair_antennas.tcl with the following flow:
* GRT - needed to run OR's repair antennas
* OR's repair antennas (with cell padding for diodes)
* DPL to legalize
* GRT to create new guides for legalized cells
~ generalize verilator variables:
QUIT_ON_VERILATOR_ERRORS -> QUIT_ON_LINTER_ERRORS
QUIT_ON_VERILATOR_WARNINGS -> QUIT_ON_LINTER_WARNINGS
VERILATOR_RELATIVE_INCLUDES -> LINTER_RELATIVE_INCLUDES
RUN_VERILATOR -> RUN_LINTER
+ add LINTER_INCLUDE_PDK_MODELS
+ add LINTER_DEFINES
+ include verilator in ci tool updater
- do not include pdk verilog models using -I
- remove workaround for verilator std error
- disallow timing constructs. Print an error to the user to remove or guard them.
+ Add verilator check before synthesis
+ Add QUIT_ON_VERILATOR_ERRORS
+ Add QUIT_ON_VERILATOR_WARNINGS
+ Add VERILATOR_RELATIVE_INCLUDES
+ Only load verilog models for selected PDKs and warn the user about unsupported PD
+ Create `RCX_SDC_FILE` as an optional SDC file to be used only for parasitics extraction (and consequent STA)
+ Document `SYNTH_ELABORATE_ONLY`, which only elaborates structured netlists without an attempt at logic mapping ~ Add translation behavior from previous, ambiguously named `SYNTH_TOP_LEVEL` to `SYNTH_ELABORATE_ONLY`
~ `scripts/yosys/synth_top.tcl` -> `elaborate.tcl`
~ Documentation consistency fixes
~ Fix wildcard in `docker/Makefile`
~ Documentation all moved under `docs/source`, arranged hierarchically according to the table of contents
~ `Klayout` changed to `KLayout` in all logging messages
~ Readme rewritten to just be concise, parts of it isolated into standalone documentation
~ RTD builds no longer use conda (saves some time)
~ Fixed all broken links
~ Update API endpoint for `test_manifest_exists` to use v2 of the Docker API
~ Comment out `tool.dependencies` behavior in `dependencies/installer.py`
~ Add deprecation notice for the local installer
+ Add feature to match PDK names using Python `fnmatch`, allowing wildcards in `config.json` `pdk::` statements
~ open_pdks -> `e8294524e5f67c533c5d0c3afa0bcc5b2a5fa066`
- Remove "dependencies" field from tool_metadata.yml
- Removed sky130 version from tool_metadata.yml, tracked through the open_pdks "sky130.json" file instead
- Removed CVC scripts, placed in the PDK
~ `docker/utils.py current-docker-platform` isolated into standalone `docker/current_platform.py` script that does not require any non-default Python libraries
Tested on Apple M1 and AWS Graviton.
+ Add support for multiple-architecture building
+ Support for amd64, ppc64le and arm64v8 added
+ amd64 and arm64v8 will be automatically built by the CI
~ Major CI Overhauls
~ Added composite actions for the Docker build and setting environment variables
~ pdk build is now its own job, and amd64/aarch64 have a job each
~ matrix -> design_matrix, designs only tested on amd64 for performance reasons
~ run/build base docker images now pushed to Docker Hub based on a hash of dependency lists (to work with the buildx `docker-container` driver)
- Remove pandas (overkill for what we're using it for)
- Remove `cugr`, `drcu` *for now* (they're x86-64 Linux-only utilities)
Please excuse the last commit lacking a changelog.
+ PDK installation uses Volare, transparently to the user: all they have to do is type "make", where it will get OpenLane and the PDK
+ CI now uses Volare to either **get** or **build** the PDK (if not found), which speeds up the fastest test set by around 60%.
+ Added rudimentary dependency installation instructions.
+ pyyaml folded into the repo, so users without pip can still run issue surveys
~ Open PDKs updated: Parasitics are now extracted using a rules file based on [spef-extractor](https://github.com/Cloud-V/spef-extractor) as a ***temporary*** measure
~ Issue survey no longer checks for click and pyyaml: a venv is used in those scenarios.
~ OpenLane build no longer uses the host filesystem as an intermediary, instead using a templated dockerfile with an N-stage build for N tools, saving IO operations (40% improvement measured)
~ Old PDK targets renamed to build-pdk-conda, includes SRAM by default
~ Replaced python3 ./env.py issue-survey with `make survey`
- Removed Fault from documentation (until I get the chance to work on it)
+ `-verbose` flag added with multiple levels, replacing `-disable_output` (which is now the default behavior)
+ New command `puts_verbose` added, to be used for extra pieces of information
+ ./flow.tcl header now includes version, copyright and licensing information
+ Added `-last_run` flag allowing you to quickly resume the last run (useful with -interactive)
+ Added `open_in_klayout` command that lets you open the CURRENT_DEF in Klayout
~ `env.py issue-survey` now detects whether it's running inside the container and warns accordingly
~ RUN_KLAYOUT, RUN_KLAYOUT_DRC, RUN_MAGIC_DRC, RUN_LVS now only control noninteractive flows
~ Full git hash added to containers
~ Various Documentation Updates
~ Changed verbosity of various output messages
- Removed `-disable_output` (now the default behavior)
- Removed OpenLane ASCII art
- Removed various "chatty" messages, including things succeeding (shut up unless something fails)
+ Warnings now printed by flow_fail and at the end of noninteractive flow runs
+ Created warnings.log, errors.log with all warnings and errors
+ Get Tag now returns a dummy tag if you're on a branch that's not `main` or `master`
~ Tarballing moved to run_tests.py
~ Restored `-u` permissions to run_test.py.
~ Version mismatches now cause the flow to fail, straight up
~ flow_summary.log -> openlane.log
~ Various warning messages updated
~ Version checking moved to `prep`
~ change .bashrc CWD color to green (black was not readable)
~ `return -code error` added to flow_fail, removed after all flow_fail invocations
~ `make pdk` fixed
- Removed `--tar_list` from run_designs.py - do your own tarring
+ Add a dependency system for tools, so some tools can be built first in local installs or have other repos and commits included in docker image builds
+ Add fully working `open_pdks` image that does NOT use Conda
+ Add options to list containerized tools in `dependencies/tool.py`, with a `--no-pdks` flag to exclude open_pdks
+ Add libraries/sky130_fd_pr/latest to the full PDK build (was missing)
~ Isolated PDK building stuff into `./dependencies/pdk.mk`
~ Final merge no longer uses a tarball, just uses a good 'ol copy
---
Caveat is this will not be enabled by default or used by the CI for now. The reason is the PDK adds another 3 gigabytes to the final image and takes positively forever to build.
To use an internally built PDK, you need to export two variables:
export EXTERNAL_PDK_INSTALLATION=0
export NO_PDKS=0
Then you'd `make openlane` as normal.
To finally enable this, we'd need to rewrite make_timing to not take forever (probably in Rust/Swift/Go/whatever) and Open_PDKs would need to be updated so it gzips the liberty files. We'd also need to ensure that all tools can load .lib.gz files.
Co-authored-by: Olof Kindgren <olof.kindgren@gmail.com>
Tool images no longer include source code or build artifacts, but they are still runnable. The result images are a lot smaller, but can still be run independently.
This entailed the creation of a common base image for runnable images.
The images still contain tarballs for backwards compatibility with older versions of OpenLane.
+ Add llvm-devtoolset-7-clang to CentOS 7 dependencies, just in case (OpenROAD was being funny with GCC for a second there)
~ Updates OpenROAD SWIG to 4.0.1
~ Update scripts to support changes in newer versions of OpenROAD
~ Onus of building images moved to the OpenLane CI proper instead of the tool update flow, which now just basically edits one file
+ Binaries can now either be built or fetched from Docker, not checked into repo history
+ Tool updater pushes docker images
+ Added git as a tool (the one in centos repos is very out of date)
+ Fixed Docker bashrc
~ Fixed cugr, drcu, and vlogtoverilog builds
~ Update CentOS 7 dependencies
~ Folded fetch_submodules into utils.py
~ Assorted Makefile Tweaks
+ .bashrc now also copied to image root
+ klayout def2gds now supports a lef file
~ klayout def2gds fix by manually specifying a lef file
~ magic manifest updated to match actual tarball
- removed klayout def2gds shell script (worthless)
- .bashrc no longer sources /etc/bashrc
~ CI now uploads each run tarball individually
~ Updated READMEs
~ `save_views` now always executed
- Removed `run_power_pins_insertion_step`: `write_powered_verilog` now run right before LVS
* Report Generation Bugfixes
+ Added `-override_env` option to flow.tcl to override certain environment variables on a per-run basis
+ Added option to extract inverter cells into the metrics behind an env var (so as not to break compatibility)
+ Klayout requirements added to runtime
~ Regression test outputs renamed, design report now in yaml
~ CI now runs on ubuntu-20.04 specifically, installs pyyaml
~ Fixed `make test`
~ Rewrote compare_regression_reports in click
~ Fixed compare_regression_design (typo made it not run, aliasing failures!!)
~ Changes to variable names: FINAL_TIMING_REPORT_TAG is now LAST_TIMING_REPORT_TAG, ran every STA
~ Fixed yosys gate type extraction
* Fix Odd Antenna Issue By Reverting OpenROAD
* Non-fixed layer count for GLB RT adjustments
Remember this kids, nothing is more permanent than a temporary solution.
* GLB_RT_LX_ADJUSTMENT variables consolidated into GLB_RT_LAYER_ADJUSTMENTS, a comma-delimited set of values
* GLB_RT_LX_ADJUSTMENT will continue to be accepted but display a deprecation warning, and will be removed in a later version of OpenLane.
* GLB_RT_L1_ADJUSTMENT value from the PDK is now ignored.
* Bashrc fix (Line wrap problem), or_issue fix
* Only `read_verilog` if there's no CURRENT_DEF: see https://github.com/The-OpenROAD-Project/OpenROAD/issues/1305#issuecomment-968336079 (Practically didn't cause an issue as all DEFs are used without the standalone flag)
* or_issue now supports netlist inputs and no longer generates tarballs: encourages inspecting and running the code before uploading a tarball
* or_issue now also creates tcl, gdb and lldb files
* OpenROAD commit now sedded in instead of GITDIR-NOTFOUND: See last paragraph of https://github.com/Cloud-V/DFFRAM/issues/115
