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mold: wrap with ld-wrapper #172452

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mold: wrap with ld-wrapper
tobim May 10, 2022
29ab3b7
Update pkgs/development/tools/mold/default.nix
tobim Aug 16, 2022
6708c94
Explain variable definitions
tobim Aug 16, 2022
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30 changes: 30 additions & 0 deletions pkgs/development/tools/mold/default.nix
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
{ stdenv
, fetchFromGitHub
, lib
, coreutils
, autoPatchelfHook
, cmake
, llvmPackages_latest
Expand Down Expand Up @@ -30,6 +31,35 @@ stdenv.mkDerivation rec {
LTO = 1;
makeFlags = [ "PREFIX=${placeholder "out"}" ];

suffixSalt = lib.replaceStrings ["-" "."] ["_" "_"] stdenv.targetPlatform.config;
wrapperName = "MOLD_WRAPPER";
coreutils_bin = lib.getBin coreutils;
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postInstall = let
targetPrefix = lib.optionalString (stdenv.targetPlatform != stdenv.hostPlatform)
(stdenv.targetPlatform.config + "-");
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in ''
mkdir -p $out/nix-support

mv $out/bin/mold $out/bin/.mold

export prog=$out/bin/.mold
Comment on lines +47 to +49

@SuperSandro2000 SuperSandro2000 Aug 15, 2022

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Why not use wrapProgram or makeWrapper?

@tobim tobim Aug 16, 2022

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i don't understand how those tools would help solve the problem in a better way.

@Mic92 Mic92 Sep 14, 2022

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I don't think this would help here.

substituteAll \
${../../../build-support/bintools-wrapper/ld-wrapper.sh} \
"$out/bin/${targetPrefix}mold"
chmod +x "$out/bin/${targetPrefix}mold"
ln -s $out/bin/${targetPrefix}mold $out/bin/${targetPrefix}ld

substituteAll \
${../../../build-support/bintools-wrapper/add-flags.sh} \
$out/nix-support/add-flags.sh
substituteAll \
${../../../build-support/bintools-wrapper/add-hardening.sh} \
$out/nix-support/add-hardening.sh
substituteAll \
${../../../build-support/wrapper-common/utils.bash} \
$out/nix-support/utils.bash
'';

passthru = {
updateScript = nix-update-script {
attrPath = pname;
Expand Down