2025-08-05 13:32:47 +02:00

85 lines
2.5 KiB
Nix

{
lib,
stdenv,
callPackage,
fetchFromGitHub,
pkg-config,
libftdi1,
python3,
pypy3,
# PyPy yields large improvements in build time and runtime performance, and
# IceStorm isn't intended to be used as a library other than by the nextpnr
# build process (which is also sped up by using PyPy), so we use it by default.
# See 18839e1 for more details.
#
# FIXME(aseipp, 3/1/2021): pypy seems a bit busted since stdenv upgrade to gcc
# 10/binutils 2.34, so short-circuit this for now in passthru below (done so
# that downstream overrides can't re-enable pypy and break their build somehow)
usePyPy ? stdenv.hostPlatform.system == "x86_64-linux",
}:
stdenv.mkDerivation (finalAttrs: {
pname = "icestorm";
version = "0-unstable-2025-06-03";
passthru = rec {
pythonPkg = if (false && usePyPy) then pypy3 else python3;
pythonInterp = pythonPkg.interpreter;
tests.examples = callPackage ./tests.nix {
inherit (finalAttrs) pname src;
icestorm = finalAttrs.finalPackage;
};
};
src = fetchFromGitHub {
owner = "YosysHQ";
repo = "icestorm";
rev = "f31c39cc2eadd0ab7f29f34becba1348ae9f8721";
hash = "sha256-SLSxqgVsYMUxv8YjY1iRLnVFiIAhk/GKmZr4Ido0A3o=";
};
nativeBuildInputs = [ pkg-config ];
buildInputs = [
finalAttrs.passthru.pythonPkg
libftdi1
];
makeFlags = [
"PREFIX=$(out)"
"PYTHON3=${finalAttrs.passthru.pythonInterp}"
];
enableParallelBuilding = true;
# fix up the path to the chosen Python interpreter. for pypy-compatible
# platforms, it offers significant performance improvements.
patchPhase = ''
for x in $(find . -type f -iname '*.py' -executable); do
substituteInPlace "$x" \
--replace-fail '/usr/bin/env python3' '${finalAttrs.passthru.pythonInterp}'
done
# We use GNU sed on Darwin, while icebox/Makefile assumed BSD sed (which
# requires a (potentially empty) argument for the -i flag).
substituteInPlace icebox/Makefile --replace-fail "sed -i '''" "sed -i"
'';
meta = {
description = "Documentation and tools for Lattice iCE40 FPGAs";
longDescription = ''
Project IceStorm aims at reverse engineering and
documenting the bitstream format of Lattice iCE40
FPGAs and providing simple tools for analyzing and
creating bitstream files.
'';
homepage = "https://github.com/YosysHQ/icestorm/";
license = lib.licenses.isc;
maintainers = with lib.maintainers; [
shell
thoughtpolice
];
platforms = lib.platforms.all;
};
})