+ Add yosys to `run_tcl_script`, enabling the automatic production of reproducibles
~ yosys -> f109fa3d4c56fe33bc626c298e04d45ae510dd0e
~ Cleaned up LEC script a bit (thanks @emjunaid for initial work)
~ Fix bug where cell_count was not extracted properly
- Removed `get_yosys_bin`: It's been deprecated forever
\+ Add PDK variable `WIRE_LENGTH_THRESHOLD` which wires with lengths >= said value are flagged
\+ Add `QUIT_ON_LONG_WIRE` which fails the flow if any wires are flagged for length
~ Update all `$::env(OPENROAD_BIN) -exit -python` invocations to include `-no_init` to suppress message about rc file
~ Replace ill-fitting `$::env(OPENROAD_BIN) -exit -python` invocations with just `python3`
~ Replace local install check with a simple git directory check
+ Formalized concept of "exposed variables", environment variables that are exposed to `config.json` during processing
+ `dir::` is no longer a special case: all `ref::` prefices referencing a path now have the ability to glob inside said path
+ Made `dir::`, `pdk_dir::` and `scl_dir::` short-hands for various `ref::`s
+ Add `-exit` to all `openroad -python` invocations, which otherwise causes hangs when stdin is hooked up
~ openroad_app -> 389a1f09821c0f57e3bf8e88f4ab43c76ec5f5c4
~ update tests to use DEFs as input files once again
Co-authored-by: Mohamed Gaber <donn@efabless.com>
+ Add `proc erase_box` to OpenLane
+ Add two new config variables for magic def reads: `MAGIC_DEF_NO_BLOCKAGES` and `MAGIC_DEF_LABELS`
~ Magic scripts hierachically organized by input format
~ `erase_box.sh` deprecated
~ More decisively separate LVS logs from reports
+ Add flag to enable/disable timing model generation after STA
+ Add both powered and unpowered netlists to `save_views`
+ Add multi-corner SDF and SPEF files to `save_views`
~ Fix#1413 and add regression test
~ Move `./run_issue_regressions.py` inside `tests` as a modular main function
+ 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`
+ Add calls to `set_dont_touch` and then `unset_dont_touch` at the beginning and end of every resizer script respectively ~ Reorganize config variables
+ Added undocumented variable `RSZ_USE_OLD_REMOVER` to continue to use the old `remove_buffers.py` script instead
~ `LIB_RESIZER_OPT` -> `RSZ_LIB` (with translation behavior)
~ `UNBUFFER_NETS` -> `RSZ_DONT_TOUCH_RX` (with translation behavior)
~ Made timing models only get written after CTS by checking for `STA_PRE_CTS` as well
+ add missing call for `getConstName`
+ add the buffer output net name to the logging message
~ Connect the load pin of cell driving the removed buffer to all cells that it is connected to. Previously, it was only connecting to the direct load of the removed buffer.
~ `scripts/odbpy/reader.py:click_odb` updated to properly decorate the wrapper function
Explanation given by @proppy: this is required as otherwise the function name returned by the `@click` decorator ends up being `wrapper` rather than being named after the command (in that case `place`).
===
Flow Scripts
===
+ Support OpenROAD ODB format as the primary format in which data is stored after placement
+ Create `manipulate_layout` to centralize calling odbpy scripts
+ Add `CURRENT_POWERED_NETLIST` to list of "current" variables, separate from
`CURRENT_NETLIST` to avoid confusion
~ Update `scripts/odbpy/reader.py:OdbReader` and *all dependent scripts* now to use `odb` inputs and outputs. Add new `--output-def` flag to continue saving a DEF layout of the result.
~ Verbosity now a global variable, not an environment variable
~ Streamline saving using `scripts/utils/utils.tcl:run_openroad_script`: new `-save` option added that will automatically handle setting and unsetting `SAVE_` variables and `CURRENT_` variables
~ Rewrite Diode Insertion Strategy 3 iterations to be readable by human beings
~ `scripts/tcl_commands/all.tcl:heal_antenna_violators` now only uses `CURRENT_DEF`
~ `scripts/tcl_commands/all.tcl:set_netlist` updated to support flags and arguments properly, `-lec` now only works if `LEC_ENABLE` is set to `1`. Invocations updated
~ Usage of `scripts/tcl_commands/all.tcl:trim_lib` updated: no longer has any optional arguments. Documentation updated.
~ `scripts/tcl_commands/all.tcl:write_verilog` now uses `write_views.tcl` with the `-save` option. Documentation updated to reflect the fact it no longer calls `set_netlist`.
~ Fix various python invocations
~ Move `scripts/tcl_commands/routing.tcl:gen_pdn` to `floorplan`
~ Update `scripts/or_issue.py` to handle `odb` inputs and outputs
~ Update `scripts/tcl_commands/lvs.tcl:write_powered_verilog`, `scripts/tcl_commands/routing.tcl:power_routing` to use `-odb` as an input instead of `-def` (and, if applicable, `-output_odb` *alongside* `-output_def`)
- Remove various scripts that rely on text manipulation (incl. `scripts/simple_cts.py`- thank you for your service)
- Remove vestiges of site widening
- Remove `-canonical` optional from `scripts/tcl_commands/all.tcl:write_verilog` (dubious/undocumented utility)
- Remove `verilog_to_verilogPower` (unused)
- Remove `zeroize_origin_lef`
- Remove `PREV_NETLIST` variable
- Remove various invocations of `scripts/tcl_commands/utils.tcl:write_verilog`, replace with `-save` arguments
## OpenROAD Scripts
+ Create OpenROAD script `common` folder, isolating common code into a folder instead of the preceding chaos
+ OpenROAD scripts now use a unified script for reading and writing views: `scripts/openroad/common/io.tcl`: `read` reads the `.odb` database + relevant liberty and sdc files and `write` writes any views specified as `SAVE_` variables: see the file for documentation
~ Update Copyright & Licensing for all OpenROAD scripts
~ Rewrite `scripts/odbpy/defutil.py:merge_components` to use odb
~ `scripts/odbpy/defutil.py:replace_pins` -> `relocate_pins`, with a partial rewrite and re-documentation.
~ `scripts/odbpy/defutil.py:add_def_obstructions` -> `add_obstructions`
~ `scripts/openroad/write_verilog.tcl` -> `write_view.tcl`, since it is literally just a "read" and a "write" call now
~ Partially rewrite `scripts/odbpy/power_utils.py:write_powered_def`, the most disgusting function in the codebase
- Remove `scripts/odbpy/defutil.py:merge_pins` (unused)
+ Added new script to import certain variables from `STD_CELL_LIBRARY_OPT` postfixed with `_OPT`
+ Added validation for `DIE_AREA` and `CORE_AREA`
~ Fixed `-init_design_config` by adjusting the location of the DESIGN_DIR check
~ 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
+ Add new feature to extract just the PDK and SCL info from config files and `-override_env`
~ Reshuffle `scripts/tcl_commands/all.tcl:prep`:
verify_versions is now one of the first things to run
config load order documented and more guardrails added
~ Update bug report template
- Remove `CURRENT_STAGE` environment variable: nothing used it
