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{
description = "Vere build devshell";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
parts = {
url = "github:hercules-ci/flake-parts";
inputs.nixpkgs-lib.follows = "nixpkgs";
};
};
outputs = inputs@{ self, nixpkgs, parts }: parts.lib.mkFlake { inherit inputs; } (let
# map systems to the musl-cross-make target names; only
# x86_64-linux is tested though
toolchainTargets = {
"x86_64-linux" = "x86_64-linux-musl";
"aarch64-linux" = "aarch64-linux-musl";
};
# map dep urls to hashes
toolchainDeps = {
"https://ftpmirror.gnu.org/gnu/gcc/gcc-9.4.0/gcc-9.4.0.tar.xz" = "13l3p6g2krilaawbapmn9zmmrh3zdwc36mfr3msxfy038hps6pf9";
"https://ftpmirror.gnu.org/gnu/binutils/binutils-2.33.1.tar.xz" = "1grcf8jaw3i0bk6f9xfzxw3qfgmn6fgkr108isdkbh1y3hnzqrmb";
"https://musl.libc.org/releases/musl-1.2.3.tar.gz" = "196lrzw0qy5axiz9p5ay50q2mls8hbfckr4rw0klc7jjc9h0nnvx";
"https://ftpmirror.gnu.org/gnu/gmp/gmp-6.1.2.tar.bz2" = "1clg7pbpk6qwxj5b2mw0pghzawp2qlm3jf9gdd8i6fl6yh2bnxaj";
"https://ftpmirror.gnu.org/gnu/mpc/mpc-1.1.0.tar.gz" = "0biwnhjm3rx3hc0rfpvyniky4lpzsvdcwhmcn7f0h4iw2hwcb1b9";
"https://ftpmirror.gnu.org/gnu/mpfr/mpfr-4.0.2.tar.bz2" = "1k1s4p56272bggvyrxfn3zdycr4wy7h5ipac70cr03lys013ypn0";
"http://ftp.barfooze.de/pub/sabotage/tarballs//linux-headers-4.19.88-1.tar.xz" = "04r8k4ckqbklx9sfm07cr7vfw5ra4cic0rzanm9dfh0crxncfnwr";
"http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=3d5db9ebe860" = "75d5d255a2a273b6e651f82eecfabf6cbcd8eaeae70e86b417384c8f4a58d8d3";
};
in {
systems = builtins.attrNames toolchainTargets;
flake = {};
perSystem = { pkgs, system, ... }: let
target = toolchainTargets.${system};
# in order to make the toolchain derivation pure, spoof `wget`
# to use FODs for the dependencies that would otherwise be
# downloaded
pseudoWget = let
c = pkgs.coreutils;
in pkgs.writeScriptBin "wget" ''
#!${pkgs.stdenv.shell}
declare -A targets
${builtins.concatStringsSep "\n"
(builtins.map (url:
"targets[${nixpkgs.lib.escapeShellArg url}]=" + (nixpkgs.lib.escapeShellArg (pkgs.fetchurl {
inherit url;
sha256 = builtins.getAttr url toolchainDeps;
})))
(builtins.attrNames toolchainDeps))}
# -c -O target url
target="$3"
url="$4"
preFetched=${"$" + "{targets[$url]}"}
if [[ -z "$preFetched" ]]; then
${c}/bin/echo 1>&2 "$target ($url) is new or changed, nix-prefetch-url it and add or update the url and hash in toolchainDeps in flake.nix"
exit 1
fi
${c}/bin/cp --reflink=auto "$preFetched" "$target"
'';
toolchain = let
# keep in sync with `_musl_cross_make_version` in
# bazel/toolchain/BUILD.bazel
version = "fe915821b652a7fa37b34a596f47d8e20bc72338";
# `-g -O2` are the defaults (there's no way to add cflags via
# config.mak), `-Wno-format-security` is the interesting
# addition (without which gcc build fails in several places
# due to `-Werror=format-security` being on for some reason)
commonCFLAGS = "-g -O2 -Wno-format-security";
in pkgs.stdenv.mkDerivation {
name = "musl-cross-make";
inherit system version;
src = pkgs.fetchFromGitHub {
owner = "richfelker";
repo = "musl-cross-make";
rev = version;
sha256 = "sha256-FthfhZ+qGf2nWLICvjaO8fiP5+PYU7PqFCbPwXmJFes=";
};
nativeBuildInputs = [
pseudoWget
];
enableParallelBuilding = true;
configurePhase = ''
cat > config.mak <<EOF
TARGET = ${target}
OUTPUT = $out
COMMON_CONFIG += CFLAGS="${commonCFLAGS}" CXXFLAGS="${commonCFLAGS}"
EOF
'';
};
in {
devShells.default = (pkgs.buildFHSUserEnvBubblewrap {
name = "vere-devenv";
targetPkgs = pkgs: [
toolchain
]
++ (with pkgs; [
autoconf
autoconf-archive
automake
bazel_6
binutils # for `nm`
jdk11_headless
libtool
m4
pkg-config
git
perl
]);
extraBuildCommands = ''
chmod +w usr
mkdir -p usr/local
# symlinking breaks Bazel inclusion checks, so have to copy
cp -a --reflink=auto ${toolchain} usr/local/${target}
'';
}).env;
};
});
}
|
