lol
1{ lib, stdenv, fetchurl, nasm }:
2
3let
4 inherit (stdenv.hostPlatform.parsed.cpu) bits;
5 arch = "bandwidth${toString bits}";
6in
7stdenv.mkDerivation rec {
8 pname = "bandwidth";
9 version = "1.11.2d";
10
11 src = fetchurl {
12 url = "https://zsmith.co/archives/${pname}-${version}.tar.gz";
13 hash = "sha256-7IrNiCXKf1vyRGl73Ccu3aYMqPVc4PpEr6lnSqIa4Q8=";
14 };
15
16 postPatch = ''
17 sed -i 's,ar ,$(AR) ,g' OOC/Makefile
18 # Remove unnecessary -m32 for 32-bit targets
19 sed -i 's,-m32,,g' OOC/Makefile
20 # Replace arm64 with aarch64
21 sed -i 's#,arm64#,aarch64#g' Makefile
22 # Fix wrong comment character
23 sed -i 's,# 32,; 32,g' routines-x86-32bit.asm
24 # Fix missing symbol exports for macOS clang
25 echo global _VectorToVector128 >> routines-x86-64bit.asm
26 echo global _VectorToVector256 >> routines-x86-64bit.asm
27 # Fix unexpected token on macOS
28 sed -i '/.section .note.GNU-stack/d' *-64bit.asm
29 sed -i '/.section code/d' *-arm-64bit.asm
30 sed -i 's#-Wl,-z,noexecstack##g' Makefile-arm64
31 '';
32
33 nativeBuildInputs = [ nasm ];
34
35 buildFlags = [
36 "AR=${stdenv.cc.targetPrefix}ar"
37 "CC=${stdenv.cc.targetPrefix}cc"
38 "ARM_AS=${stdenv.cc.targetPrefix}as"
39 "ARM_CC=$(CC)"
40 "UNAMEPROC=${stdenv.hostPlatform.parsed.cpu.name}"
41 "UNAMEMACHINE=${stdenv.hostPlatform.parsed.cpu.name}"
42 arch
43 ];
44
45 installPhase = ''
46 mkdir -p $out/bin
47 cp ${arch} $out/bin/bandwidth
48 '';
49
50 meta = with lib; {
51 homepage = "https://zsmith.co/bandwidth.html";
52 description = "Artificial benchmark for identifying weaknesses in the memory subsystem";
53 license = licenses.gpl2Plus;
54 platforms = platforms.x86 ++ platforms.arm ++ platforms.aarch64;
55 maintainers = with maintainers; [ r-burns ];
56 };
57}