OFC - Open Fortran Compiler
Overview
Currently OFC is a FORTRAN front-end capable of parsing and performing semantic analysis on Fortran. We're targeting legacy FORTRAN first, and can currently parse and semantically analyse most F77 and earlier, providing syntax and semantic warnings and errors.
Goals
- Produce a FORTRAN static code analysis tool.
- Produce a FORTRAN modernizer which can reprint legacy FORTRAN as F90 where possible.
- Produce an alternative FORTRAN front-end for open-source compilers.
Features
- Parse, semantically analyse and re-print ALL NIST F77 tests.
- Safe translation from F77 to F90 syntax where possible.
Usage
Cloning
It's recommended that you clone ofc recursively, as it has a submodule:
git clone https://github.com/CodethinkLabs/ofc.git --recurse-submodules
For git 2.12 or earlier use --recursive instead
Installation
To install ofc, do:
make install
Note that the ofc binary can be invoked locally without an install, and the tests will run using the locally built binary.
Execution
To invoke ofc currently, simply run it over a fortran file:
ofc tests/programs/nist/FM001.FOR
The compiler options will be automatically detected from the file name, but this can be overridden using commandline flags which are printed by invoking ofc with no source file.
To print the parse and semantic trees, use the --parse-tree and --sema-tree flags.
Testing
Dependencies
Test Suite: gfortran valgrind
Static Code Analysis: cppcheck clang, scanbuild
Test Suite
We run a test suite including the NIST F77 tests using:
make test
To make a html report (tests/out/report.html) use:
make test-report
The full report takes a long time to build as it runs valgrind over both the debug and optimized binaries. To make a quick report which does every step except valgrind, use:
make test-report-lite
Note: Tests run from the build directory will use the built ofc rather than the installed one.
CPPCheck
We run cppcheck over the tree using:
make cppcheck
scanbuild
We run scanbuild over the tree using:
make scan-build
Other
We also have a rule to compile all files at once to produce more warnings using:
make scan
Contact
You can contact us at #open-fortran-compiler on irc.freenode.net or via the e-mails used in our git commits.