Merge pull request #132538 from sternenseemann/has-gold

binutils-unwrapped: expose if built with ld.gold

pkgs/development/compilers/ghc/8.10.4.nix

@@ -122,7 +122,8 @@ let
   # Use gold either following the default, or to avoid the BFD linker due to some bugs / perf issues.
   # But we cannot avoid BFD when using musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
   # see #84670 and #49071 for more background.
-  useLdGold = targetPlatform.linker == "gold" || (targetPlatform.linker == "bfd" && !targetPlatform.isMusl);
+  useLdGold = targetPlatform.linker == "gold" ||
+    (targetPlatform.linker == "bfd" && (targetPackages.stdenv.cc.bintools.bintools.hasGold or false) && !targetPlatform.isMusl);
 
   runtimeDeps = [
     targetPackages.stdenv.cc.bintools

pkgs/development/compilers/ghc/8.8.4.nix

@@ -131,7 +131,8 @@ let
   # Use gold either following the default, or to avoid the BFD linker due to some bugs / perf issues.
   # But we cannot avoid BFD when using musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
   # see #84670 and #49071 for more background.
-  useLdGold = targetPlatform.linker == "gold" || (targetPlatform.linker == "bfd" && !targetPlatform.isMusl);
+  useLdGold = targetPlatform.linker == "gold" ||
+    (targetPlatform.linker == "bfd" && (targetPackages.stdenv.cc.bintools.bintools.hasGold or false) && !targetPlatform.isMusl);
 
   runtimeDeps = [
     targetPackages.stdenv.cc.bintools

pkgs/development/compilers/ghc/9.0.1.nix

@@ -123,7 +123,8 @@ let
   # Use gold either following the default, or to avoid the BFD linker due to some bugs / perf issues.
   # But we cannot avoid BFD when using musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
   # see #84670 and #49071 for more background.
-  useLdGold = targetPlatform.linker == "gold" || (targetPlatform.linker == "bfd" && !targetPlatform.isMusl);
+  useLdGold = targetPlatform.linker == "gold" ||
+    (targetPlatform.linker == "bfd" && (targetPackages.stdenv.cc.bintools.bintools.hasGold or false) && !targetPlatform.isMusl);
 
   runtimeDeps = [
     targetPackages.stdenv.cc.bintools

pkgs/development/compilers/ghc/head.nix

@@ -133,7 +133,8 @@ let
   # Use gold either following the default, or to avoid the BFD linker due to some bugs / perf issues.
   # But we cannot avoid BFD when using musl libc due to https://sourceware.org/bugzilla/show_bug.cgi?id=23856
   # see #84670 and #49071 for more background.
-  useLdGold = targetPlatform.linker == "gold" || (targetPlatform.linker == "bfd" && !targetPlatform.isMusl);
+  useLdGold = targetPlatform.linker == "gold" ||
+    (targetPlatform.linker == "bfd" && (targetPackages.stdenv.cc.bintools.bintools.hasGold or false) && !targetPlatform.isMusl);
 
   runtimeDeps = [
     targetPackages.stdenv.cc.bintools

pkgs/development/tools/misc/binutils/default.nix

@@ -1,16 +1,24 @@
+let
+  execFormatIsELF = platform: platform.parsed.kernel.execFormat.name == "elf";
+in
+
 { stdenv, lib, buildPackages
 , fetchFromGitHub, fetchurl, zlib, autoreconfHook, gettext
 # Enabling all targets increases output size to a multiple.
 , withAllTargets ? false, libbfd, libopcodes
 , enableShared ? !stdenv.hostPlatform.isStatic
 , noSysDirs
-, gold ? true
+, gold ? execFormatIsELF stdenv.targetPlatform
 , bison ? null
 , flex
 , texinfo
 , perl
 }:
 
+# configure silently disables ld.gold if it's unsupported,
+# so we need to make sure that intent matches result ourselves.
+assert gold -> execFormatIsELF stdenv.targetPlatform;
+
 # Note: this package is used for bootstrapping fetchurl, and thus
 # cannot use fetchpatch! All mutable patches (generated by GitHub or
 # cgit) that are needed here should be included directly in Nixpkgs as
@@ -168,6 +176,7 @@ stdenv.mkDerivation {
 
   passthru = {
     inherit targetPrefix;
+    hasGold = gold;
     isGNU = true;
   };