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| author | volth <volth@volth.com> | 2019-09-18 22:34:41 +0000 |
|---|---|---|
| committer | volth <volth@volth.com> | 2019-09-18 22:41:52 +0000 |
| commit | af665d822a166ae62547c1c310207f11acaded17 (patch) | |
| tree | 14c814401499b87b744b2e2b0c8beccea1625c8f /nixos/modules/system | |
| parent | e598c4001fda0088506cdc12bf8053705c46676d (diff) | |
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add config.environment.ld-linux
Add option to install symlink to ld-linux(8) system-wide to allow running unmodified ELF binaries. It might be useful to run games or executables distributed inside jar files as discussed https://discourse.nixos.org/t/runtime-alternative-to-patchelf-set-interpreter/3539 https://discourse.nixos.org/t/running-binaries-without-fhs-and-patchelf/1828 It is the third concession to FHS after `/bin/sh` and `/usr/bin/env` but it is disabled by default unlike those two
Diffstat (limited to 'nixos/modules/system')
| -rw-r--r-- | nixos/modules/system/activation/activation-script.nix | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/nixos/modules/system/activation/activation-script.nix b/nixos/modules/system/activation/activation-script.nix index ddfd1af4a319..9141c8222b73 100644 --- a/nixos/modules/system/activation/activation-script.nix +++ b/nixos/modules/system/activation/activation-script.nix @@ -162,6 +162,16 @@ in <literal>/usr/bin/env</literal>. ''; }; + + environment.ld-linux = mkOption { + default = false; + type = types.bool; + visible = false; + description = '' + Install symlink to ld-linux(8) system-wide to allow running unmodified ELF binaries. + It might be useful to run games or executables distributed inside jar files. + ''; + }; }; @@ -198,6 +208,27 @@ in rmdir --ignore-fail-on-non-empty /usr/bin /usr ''; + system.activationScripts.ld-linux = + concatStrings ( + mapAttrsToList + (target: source: + if config.environment.ld-linux then '' + mkdir -m 0755 -p $(dirname ${target}) + ln -sfn ${escapeShellArg source} ${target}.tmp + mv -f ${target}.tmp ${target} # atomically replace + '' else '' + rm -f ${target} + rmdir --ignore-fail-on-non-empty $(dirname ${target}) + '') + { + "i686-linux" ."/lib/ld-linux.so.2" = "${pkgs.glibc.out}/lib/ld-linux.so.2"; + "x86_64-linux" ."/lib/ld-linux.so.2" = "${pkgs.pkgsi686Linux.glibc.out}/lib/ld-linux.so.2"; + "x86_64-linux" ."/lib64/ld-linux-x86-64.so.2" = "${pkgs.glibc.out}/lib64/ld-linux-x86-64.so.2"; + "aarch64-linux"."/lib/ld-linux-aarch64.so.1" = "${pkgs.glibc.out}/lib/ld-linux-aarch64.so.1"; + "armv7l-linux" ."/lib/ld-linux-armhf.so.3" = "${pkgs.glibc.out}/lib/ld-linux-armhf.so.3"; + }.${pkgs.stdenv.system} or {} + ); + system.activationScripts.specialfs = '' specialMount() { |