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{ lib, stdenv, fetchurl, nasm }:
let
inherit (stdenv.hostPlatform.parsed.cpu) bits;
arch = "bandwidth${toString bits}";
in
stdenv.mkDerivation rec {
pname = "bandwidth";
version = "1.10.4";
src = fetchurl {
url = "https://zsmith.co/archives/${pname}-${version}.tar.gz";
sha256 = "sha256-e/eP2rA7ElFrh2Z4qTzRGR/cxY1UI6s+LQ9Og1x46/I=";
};
postPatch = ''
sed -i 's,ar ,$(AR) ,g' OOC/Makefile
# Remove unnecessary -m32 for 32-bit targets
sed -i 's,-m32,,g' OOC/Makefile
# Fix wrong comment character
sed -i 's,# 32,; 32,g' routines-x86-32bit.asm
# Fix missing symbol exports for macOS clang
echo global _VectorToVector128 >> routines-x86-64bit.asm
echo global _VectorToVector256 >> routines-x86-64bit.asm
'';
nativeBuildInputs = [ nasm ];
buildFlags = [
"AR=${stdenv.cc.targetPrefix}ar"
"CC=${stdenv.cc.targetPrefix}cc"
"ARM_AS=${stdenv.cc.targetPrefix}as"
"ARM_CC=$(CC)"
"UNAMEPROC=${stdenv.hostPlatform.parsed.cpu.name}"
"UNAMEMACHINE=${stdenv.hostPlatform.parsed.cpu.name}"
arch
];
installPhase = ''
mkdir -p $out/bin
cp ${arch} $out/bin/bandwidth
'';
meta = with lib; {
homepage = "https://zsmith.co/bandwidth.html";
description = "Artificial benchmark for identifying weaknesses in the memory subsystem";
license = licenses.gpl2Plus;
platforms = platforms.x86 ++ platforms.arm ++ platforms.aarch64;
maintainers = with maintainers; [ r-burns ];
};
}
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