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foss-fpga-tools / third_party / Surelog / 8ffaa762b3da397f16f1130b92967cc537be4a44
commit8ffaa762b3da397f16f1130b92967cc537be4a44[log] [tgz]
authorAlain <alainmarcel@yahoo.com>Fri Nov 22 22:17:29 2019 -0800
committerAlain <alainmarcel@yahoo.com>Fri Nov 22 22:17:40 2019 -0800
tree355e28df0d6d038f863b299e67ca9e3fc443ed15
parent4d189dcbac1cabe904a955998abda005e6c78553 [diff]
README

Signed-off-by: Alain <alainmarcel@yahoo.com>
3 files changed
tree: 355e28df0d6d038f863b299e67ca9e3fc443ed15
  1. grammar/
  2. src/
  3. tests/
  4. third_party/
  5. .gitignore
  6. .gitmodules
  7. .nojekyll
  8. .travis.yml
  9. CMakeLists.txt
  10. INSTALL.md
  11. LICENSE
  12. Makefile
  13. NOTICE
  14. README.md
README.md

Surelog

System Verilog 2017 Pre-processor, Parser

Goal

This project aims at providing a complete System Verilog 2017 front-end: a preprocessor, a parser, an elaborator for both design and testbench.

Applications

Linter, Simulator, Synthesis tool, Formal tools can use this front-end. They either can be developed as plugins (linked with) or use this front-end as an intermediate step of their compilation flows using the on-disk serialized models.

Contributing to this project

This project is open to contributions from any users! From the commercial vendor to the Verilog enthousiast, all are welcome.

Features

  • The preprocessor and the parser use Antlr 4.72 as a parser generator.
  • The preprocessor and the parser ASTs are made persistent on disk using Google Flatbuffers, enabling incremental compilation.
  • The tool is built thread safe and performs multithread parsing.
  • Large files/modules/packages are splitted for multi-threading compilation.
  • Surelog accepts IEEE Simulator-compliant project specification.
  • Surelog issues Errors/Warning/Info/Notes about language compliance.
  • Surelog allows for pre-compiled packages (UVM,...).
  • A comprehensive Python API allows to:
    • listen or visit the Parser grammar and create custom linting rules
    • Visit the design data model and create custom linting rules
    • Customize the message formats
    • Waive messages

Build instructions and test:

make
make install (/usr/local/bin and /usr/local/lib/surelog by default, use DESTDIR= for alternative locations)

For more build/test options and system requirements for building see src/README file.

Surelog commands

  • The executable is located here (If not installed in:

    • build/dist/Release/surelog

  • STANDARD VERILOG COMMAND LINE:

    • -f Accepts a file containing command line arguments
    • -v Library file
    • -y Library directory
    • +incdir+[+...] Specifies include paths
    • -Idir Specifies include paths
    • +libext++... Specifies the library extensions
    • .v Verilog File
    • .sv System Verilog File
    • +liborder Lib Order option (ignored)
    • +librescan Lib Rescan option (ignored)
    • +libverbose Lib Verbose option (ignored)
    • +nolibcell No Lib Cell option (ignored)
    • +define+name=value[+name=value...] Defines a macro and optionally its value
    • -L Defines library compilation order
    • -map Specifies a library mapping file (multiple -map options supported)
    • -cfgfile Specifies a configuration file (multiple -cfgFile options supported)
    • -cfg Specifies a configuration to use (multiple -cfg options supported)
    • -Dvar=value Same as env var definition for -f files var substitution

  • FLOWS OPTIONS:

    • -fileunit Compiles each Verilog file as an independent compilation unit (under slpp_unit/ if -writepp used)
    • -diffcompunit Compiles both all files as a whole unit and separate compilation units to perform diffs
    • -parse Parse/Compile/Elaborate the files after pre-processing step
    • -nocomp Turns off Compilation & Elaboration
    • -noelab Turns off Elaboration
    • -pythonlistener Enables the Parser Python Listener
    • -pythonlistenerfile <script.py> Specifies the AST python listener file
    • -pythonevalscriptperfile <script.py> Eval the Python script on each source file (Multithreaded)
    • -pythonevalscript <script.py> Eval the Python script at the design level
    • -nopython Turns off all Python features, including waivers
    • -strictpythoncheck Turns on strict Python checks
    • -mt <nb_max_treads> 0 up to 512 max threads, 0 or 1 being single threaded, if “max” is given, the program will use one thread per core on the host
    • -split Split files or modules larger than specified line number for multi thread compilation
    • -timescale= Specifies the overall timescale
    • -nobuiltin Do not parse SV builtin classes (array...)

  • TRACES OPTIONS:

    • -d Debug 1-4, lib, ast, inst, incl
    • -nostdout Mutes Standard output
    • -verbose Gives verbose processing information
    • -profile Gives Profiling information
    • -l Specifies log file, default is surelog.log under output dir

  • OUTPUT OPTIONS:

    • -odir Specifies the output directory, default is ./
    • -writeppfile Writes out Preprocessor output in file (all compilation units will override this file)
    • -writepp Writes out Preprocessor output (all compilation units will generate files under slpp_all/ or slpp_unit/)
    • -lineoffsetascomments Writes the preprocessor line offsets as comments as opposed as parser directives
    • -nocache Default allows to create a cache for include files, this option prevents it
    • -cache Specifies the cache directory, default is slpp_all/cache or slpp_unit/cache
    • -createcache Create cache for precompiled packages
    • -filterdirectives Filters out simple directives like default_nettype in pre-processor's output
    • -filterprotected Filters out protected regions in pre-processor's output
    • -filtercomments Filters out comments in pre-processor's output
    • -outputlineinfo Outputs SLline directives in pre-processor's output
    • -pploc Output message location in terms of post preprocessor location
    • -noinfo Filters out INFO messages
    • -nonote Filters out NOTE messages
    • -nowarning Filters out WARNING messages
    • -o Turns on all compilation stages, produces all outputs under that path
    • --help This help
    • --version Surelog version and build date

  • RETURN CODE

    • Bit mask the return code, more than 1 bit can be on.
    • 0 - No issues
    • 0x1 - Fatal error(s)
    • 0x2 - Syntax error(s)
    • 0x4 - Error(s)

Python API

  • The file slformatmsg.py illustrates how messages can be reformated.

    • Place a modified version of this file either in the execution directory, or install directory /usr/local/lib/surelog/python

  • The file src/API/slSV3_1aPythonListener.py illustrates how a listener can be created to listen to the Parser AST.

    • Place a modified version of this file either in the execution directory, or install directory /usr/local/lib/surelog/python

  • A simple example of creating a new error message and generating errors can be found here: python_listener.py

  • The complete Python API is described in the following files: SLAPI.h vobjecttypes

  • Waivers can be installed in slwaivers.py files in the execution directory or install directory /usr/local/lib/surelog/python

Creating your own executable using libsurelog.a

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