libresoc: centralize existing packages, fix bitrot, and enable all test suites

pkgs/by-name/libresoc-nmigen/bigfloat.nix

@@ -0,0 +1,23 @@
+{
+  lib,
+  python39Packages,
+  fetchPypi,
+  mpfr,
+}:
+python39Packages.buildPythonPackage rec {
+  pname = "bigfloat";
+  version = "0.4.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    hash = "sha256-WLlr3ocqylmJ0T2C66Os8qoblOIhF91yoWulkRsMDLg=";
+  };
+
+  propagatedBuildInputs = [mpfr] ++ (with python39Packages; [six]);
+
+  meta = {
+    description = "Arbitrary-precision correctly-rounded floating-point arithmetic, via MPFR.";
+    homepage = "http://github.com/mdickinson/bigfloat";
+    license = lib.licenses.lgpl3;
+  };
+}

pkgs/by-name/libresoc-nmigen/ieee754fpu.nix

@@ -0,0 +1,84 @@
+{
+  lib,
+  python39Packages,
+  fetchFromLibresoc,
+  bigfloat,
+  sfpy,
+  symbiyosys,
+  nmutil,
+  nmigen,
+  pytest-output-to-files,
+}:
+python39Packages.buildPythonPackage rec {
+  pname = "ieee754fpu";
+  version = "unstable-2024-03-31";
+
+  src = fetchFromLibresoc {
+    inherit pname;
+    hash = "sha256-Ghbvg2Y4YlmxVEa3EtcvEVai4hC4VU4q+XIQh4pQ7+c=";
+    rev = "829dfbc53ba38ec17bc544cb0b862e73cee223db"; # HEAD @ version date
+  };
+
+  prePatch = ''
+    touch ./src/ieee754/part{,_ass,_cat,_repl}/__init__.py
+  '';
+
+  propagatedBuildInputs = [nmutil];
+
+  nativeCheckInputs =
+    [pytest-output-to-files nmigen symbiyosys sfpy bigfloat]
+    ++ (with python39Packages; [pytestCheckHook pytest-xdist]);
+
+  disabledTests = [
+    "test_fadd_f16_rna_formal"
+    "test_fadd_f16_rne_formal"
+    "test_fadd_f16_rtn_formal"
+    "test_fadd_f16_rton_formal"
+    "test_fadd_f16_rtop_formal"
+    "test_fadd_f16_rtp_formal"
+    "test_fadd_f16_rtz_formal"
+    "test_fmadd_f8_rna_formal"
+    "test_fmadd_f8_rne_formal"
+    "test_fmadd_f8_rtn_formal"
+    "test_fmadd_f8_rton_formal"
+    "test_fmadd_f8_rtop_formal"
+    "test_fmadd_f8_rtp_formal"
+    "test_fmadd_f8_rtz_formal"
+    "test_fmsub_f8_rna_formal"
+    "test_fmsub_f8_rne_formal"
+    "test_fmsub_f8_rtn_formal"
+    "test_fmsub_f8_rton_formal"
+    "test_fmsub_f8_rtop_formal"
+    "test_fmsub_f8_rtp_formal"
+    "test_fmsub_f8_rtz_formal"
+    "test_fnmadd_f8_rna_formal"
+    "test_fnmadd_f8_rne_formal"
+    "test_fnmadd_f8_rtn_formal"
+    "test_fnmadd_f8_rton_formal"
+    "test_fnmadd_f8_rtop_formal"
+    "test_fnmadd_f8_rtp_formal"
+    "test_fnmadd_f8_rtz_formal"
+    "test_fnmsub_f8_rna_formal"
+    "test_fnmsub_f8_rne_formal"
+    "test_fnmsub_f8_rtn_formal"
+    "test_fnmsub_f8_rton_formal"
+    "test_fnmsub_f8_rtop_formal"
+    "test_fnmsub_f8_rtp_formal"
+    "test_fnmsub_f8_rtz_formal"
+    "test_fsub_f16_rna_formal"
+    "test_fsub_f16_rne_formal"
+    "test_fsub_f16_rtn_formal"
+    "test_fsub_f16_rton_formal"
+    "test_fsub_f16_rtop_formal"
+    "test_fsub_f16_rtp_formal"
+    "test_fsub_f16_rtz_formal"
+  ];
+
+  pythonImportsCheck = ["ieee754.part"];
+
+  meta = {
+    description = "A nmigen (HDL) IEEE754 Floating-Point library";
+    homepage = "https://git.libre-soc.org/?p=ieee754fpu.git;a=summary";
+    license = lib.licenses.gpl3Plus;
+  };
+}

pkgs/by-name/libresoc-nmigen/lib.nix

@@ -0,0 +1,15 @@
+{fetchgit}: {
+  # given recent poor availability of upstream https://git.libre-soc.org/,
+  # define a dedicated fetcher for current mirror source
+  # (currently github.com/Libre-SOC-mirrors, cc @jleightcap @albertchae)
+  fetchFromLibresoc = {
+    pname,
+    hash,
+    rev,
+    fetchSubmodules ? true,
+  }:
+    fetchgit {
+      url = "https://github.com/Libre-SOC-mirrors/${pname}.git";
+      inherit rev hash fetchSubmodules;
+    };
+}

pkgs/by-name/libresoc-nmigen/libresoc-c4m-jtag.nix

@@ -0,0 +1,36 @@
+{
+  lib,
+  fetchFromLibresoc,
+  python39,
+  python39Packages,
+  nmigen-soc,
+  nmigen,
+}:
+python39Packages.buildPythonPackage rec {
+  pname = "c4m-jtag";
+  version = "unstable-2024-03-31";
+  realVersion = "0.3.dev243+g${lib.substring 0 7 src.rev}";
+
+  src = fetchFromLibresoc {
+    inherit pname;
+    rev = "f5322d804e8228a2a5715c77185c60148ff96da8"; # HEAD @ version date
+    hash = "sha256-0yF/yqcknCq1fre5pnKux4V7guu2oDa6duPO9mU46n8=3";
+  };
+
+  prePatch = ''
+    export SETUPTOOLS_SCM_PRETEND_VERSION="${realVersion}"
+  '';
+
+  nativeBuildInputs = with python39Packages; [setuptools-scm];
+  propagatedBuildInputs = [nmigen-soc];
+
+  nativeCheckInputs = with python39Packages; [nose];
+  checkPhase = "nosetests";
+
+  pythonImportsCheck = ["c4m.nmigen.jtag.tap"];
+
+  meta = {
+    description = "Chip4Makers nmigen JTAG implementation";
+    homepage = "https://git.libre-soc.org/?p=c4m-jtag.git;a=summary";
+  };
+}

pkgs/by-name/libresoc-nmigen/libresoc-pyelftools.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  python39Packages,
+  fetchFromGitHub,
+}:
+python39Packages.pyelftools.overrideAttrs (_: rec {
+  name = "pyelftools";
+  version = "unstable-2024-03-31";
+
+  # upstream Libre-SOC uses a mirror,
+  # and while this would be best handled as github.com/Libre-SOC-mirrors copy,
+  # an included GitHub workflow interferes with the automated mirror.
+  # instead,
+  src = fetchFromGitHub {
+    owner = "eliben";
+    repo = name;
+    rev = "8b97f5da6838791fd5c6b47b1623fb414daed2f0";
+    hash = "sha256-E+grMrl0NJMl+yUzRyzTVIb/MjMOUOgq6YynGJhnMZg=";
+  };
+
+  meta = {
+    description = "Library for analyzing ELF files and DWARF debugging information";
+    homepage = "https://git.libre-soc.org/?p=pyelftools.git;a=summary";
+    license = lib.licenses.unlicense;
+  };
+})

pkgs/by-name/libresoc-nmigen/mdis.nix

@@ -0,0 +1,20 @@
+{
+  lib,
+  python39Packages,
+  fetchPypi,
+}:
+python39Packages.buildPythonPackage rec {
+  pname = "mdis";
+  version = "0.5.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-gvXtP8NO5XPDAs0XMbGknG79FscN/7lxqmF1kg3nhxg=";
+  };
+
+  meta = {
+    description = "Python dispatching library";
+    homepage = "https://git.libre-soc.org/?p=mdis.git";
+    license = lib.licenses.bsd3;
+  };
+}

pkgs/by-name/libresoc-nmigen/nmigen-soc.nix

@@ -0,0 +1,39 @@
+{
+  lib,
+  python39Packages,
+  fetchFromGitLab,
+  nmigen,
+}:
+python39Packages.buildPythonPackage rec {
+  pname = "nmigen-soc";
+  version = "unstable-2024-03-31";
+  # python setup.py --version
+  realVersion = "0.1.dev243+g${lib.substring 0 7 src.rev}";
+
+  # NOTE(jleightcap): libresoc's nmigen-soc fork has been renamed to https://github.com/amaranth-lang/amaranth-soc.
+  # suffers from the same rename issue as the previous commit with renaming issue as nmigen/amaranth
+  # NOTE(jleightcap): while libre-soc project does have local forks of nmigen* projects,
+  # HEADs of repos are incompatible.
+  # dev-env-setup implies that these forks are unused in build process, so using upstream.
+  src = fetchFromGitLab {
+    owner = "nmigen";
+    repo = "nmigen-soc";
+    hash = "sha256-RI481chXiD9kP/6vNLzYGOfcbwHH0Cvhk+CgloCY9JU=";
+    rev = "fd2aaa336283cff2e46f489bf3897780cd217b8b"; # HEAD @ version date
+  };
+
+  nativeBuildInputs = with python39Packages; [setuptools-scm];
+  propagatedBuildInputs = with python39Packages; [nmigen setuptools];
+
+  preBuild = ''
+    export SETUPTOOLS_SCM_PRETEND_VERSION="${realVersion}"
+  '';
+
+  nativeCheckInputs = with python39Packages; [pytestCheckHook];
+
+  meta = {
+    description = "Python toolbox for building complex digital hardware";
+    license = lib.licenses.bsd3;
+    homepage = "https://git.libre-soc.org/?p=nmigen.git;a=summary";
+  };
+}

pkgs/by-name/libresoc-nmigen/nmigen.nix

@@ -0,0 +1,58 @@
+{
+  lib,
+  fetchFromGitLab,
+  git,
+  python39Packages,
+  symbiyosys,
+  yices,
+  yosys,
+}:
+python39Packages.buildPythonPackage rec {
+  pname = "nmigen";
+  version = "unstable-2024-03-31";
+  realVersion = "0.3.dev243+g${lib.substring 0 7 src.rev}";
+
+  # libresoc's nmigen fork has been renamed to https://github.com/amaranth-lang/amaranth
+  # amaranth is packaged in nixpkgs but we can't just override a few of the attributes the way we did for pyelftools,
+  # because the names are different, so much of this is copied from the amaranth build recipe
+  src = fetchFromGitLab {
+    owner = "nmigen";
+    repo = "nmigen";
+    hash = "sha256-tpcA+FFHhm4gF37Z+rB/uZopSRtAtNxU8j5IXnSGeCg=";
+    rev = "29dec30f628356828aa2aa2b91ce205a570d664e"; # HEAD @ version date
+  };
+
+  preBuild = ''
+    export SETUPTOOLS_SCM_PRETEND_VERSION="${realVersion}"
+  '';
+
+  nativeBuildInputs = [git] ++ (with python39Packages; [setuptools-scm]);
+
+  propagatedBuildInputs =
+    [yosys]
+    ++ (with python39Packages; [
+      jinja2
+      pyvcd
+    ]);
+
+  nativeCheckInputs =
+    [
+      symbiyosys
+      yices
+      yosys
+    ]
+    ++ (with python39Packages; [pytestCheckHook]);
+
+  # TODO: upstream nixpkgs Amaranth package uses a patch for Python >3.8 compatibility in setuptools:
+  # https://github.com/amaranth-lang/amaranth/commit/64771a065a280fa683c1e6692383bec4f59f20fa.patch
+  # without this upgraded version, the C/C++ compiler used in tests via setuptools.distutils.ccompiler breaks.
+  # Given the pre-fork nmigen release being used in Libre-SOC, this patch isn't directly portable to this package,
+  # so disabling the test suite for now.
+  doCheck = false;
+
+  meta = {
+    description = "Python toolbox for building complex digital hardware";
+    homepage = "https://git.libre-soc.org/?p=nmigen.git;a=summary";
+    license = lib.licenses.mit;
+  };
+}

pkgs/by-name/libresoc-nmigen/nmutil.nix

@@ -0,0 +1,48 @@
+{
+  lib,
+  fetchFromLibresoc,
+  python39Packages,
+  symbiyosys,
+  yices,
+  nmigen,
+  pytest-output-to-files,
+}:
+python39Packages.buildPythonPackage rec {
+  pname = "libresoc-nmutil"; # Libre-SOC's bespoke fork
+  version = "unstable-2024-03-31";
+
+  src = fetchFromLibresoc {
+    pname = "nmutil";
+    rev = "4bf2f20bddc057df1597d14e0b990c0b9bdeb10e"; # HEAD @ version date
+    hash = "sha256-8jXQGO4IeB6WjGtjuHO8UBh9n3ei7LukmRoXSbNJ1vM=";
+  };
+
+  propagatedNativeBuildInputs =
+    [
+      symbiyosys
+      yices
+    ]
+    ++ (with python39Packages; [
+      pyvcd
+    ]);
+
+  nativeCheckInputs =
+    [
+      nmigen
+      symbiyosys
+      yices
+    ]
+    ++ (with python39Packages; [
+      pytestCheckHook
+      pytest-xdist
+      pytest-output-to-files
+    ]);
+
+  pythonImportsCheck = ["nmutil"];
+
+  meta = {
+    description = "A nmigen utility library";
+    homepage = "https://git.libre-soc.org/?p=nmutil.git;a=summary";
+    license = lib.licenses.lgpl3Plus;
+  };
+}