Enable static builds

.github/workflows/build.yml

@@ -52,6 +52,7 @@ jobs:
       - uses: DeterminateSystems/flakehub-cache-action@main
       - run: nix build .#packages.${{ inputs.system }}.default .#packages.${{ inputs.system }}.binaryTarball --no-link -L
       - run: nix build .#packages.${{ inputs.system }}.binaryTarball --out-link tarball
+      - run: nix build .#packages.${{ inputs.system }}.nix-cli-static --no-link -L
       - uses: actions/upload-artifact@v4
         with:
           name: ${{ inputs.system }}

doc/manual/source/development/building.md

@@ -143,6 +143,7 @@ For historic reasons and backward-compatibility, some CPU and OS identifiers are
 |-----------------------------|-------------------------|---------------------|
 | `x86`                       |                         | `i686`              |
 | `arm`                       |                         | `host_machine.cpu()`|
+| `arm64`                     |                         | `host_machine.cpu()`|
 | `ppc`                       | `little`                | `powerpcle`         |
 | `ppc64`                     | `little`                | `powerpc64le`       |
 | `ppc`                       | `big`                   | `powerpc`           |

flake.nix

@@ -470,6 +470,9 @@
                     "${pkgName}-${crossSystem}" = nixpkgsFor.${system}.cross.${crossSystem}.nixComponents2.${pkgName};
                   }
                 )
+                // {
+                  "${pkgName}-static" = nixpkgsFor.${system}.native.pkgsStatic.nixComponents2.${pkgName};
+                }
               )
               // flatMapAttrs (lib.genAttrs stdenvs (_: { })) (
                 stdenvName:
@@ -479,6 +482,10 @@
                   "${pkgName}-${stdenvName}" =
                     nixpkgsFor.${system}.nativeForStdenv.${stdenvName}.nixComponents2.${pkgName};
                 }
+                // lib.optionalAttrs supportsCross {
+                  "${pkgName}-${stdenvName}-static" =
+                    nixpkgsFor.${system}.nativeForStdenv.${stdenvName}.pkgsStatic.nixComponents2.${pkgName};
+                }
               )
             )
         // lib.optionalAttrs (builtins.elem system linux64BitSystems) {

nix-meson-build-support/common/meson.build

@@ -65,5 +65,14 @@ endif
 # Darwin ld doesn't like "X.Y.ZpreABCD+W"
 nix_soversion = meson.project_version().split('+')[0].split('pre')[0]
 
+cxx = meson.get_compiler('cpp')
+
+# Clang does not support prelinking on static builds
+if cxx.get_id() == 'clang' and get_option('default_library') == 'static'
+  prelink = false
+else
+  prelink = true
+endif
+
 subdir('assert-fail')
 subdir('asan-options')

nix-meson-build-support/default-system-cpu/meson.build

@@ -14,6 +14,6 @@ if (host_machine.cpu_family() in [ 'ppc64', 'ppc' ]) and host_machine.endian() =
   nix_system_cpu += 'le'
 elif host_machine.cpu_family() in [ 'mips64', 'mips' ] and host_machine.endian() == 'little'
   nix_system_cpu += 'el'
-elif host_machine.cpu_family() == 'arm'
+elif host_machine.cpu_family() in [ 'arm', 'arm64' ]
   nix_system_cpu = host_machine.cpu()
 endif

packaging/dependencies.nix

@@ -16,9 +16,41 @@ in
 scope: {
   inherit stdenv;
 
+  libblake3 =
+    (pkgs.libblake3.override {
+      inherit stdenv;
+      # Nixpkgs disables tbb on static
+      useTBB = !stdenv.hostPlatform.isStatic;
+    })
+    # For some reason that is not clear, it is wanting to use libgcc_eh which is not available.
+    # Force this to be built with compiler-rt & libunwind over libgcc_eh works.
+    # Issue: https://github.com/NixOS/nixpkgs/issues/177129
+    .overrideAttrs
+      (
+        attrs:
+        lib.optionalAttrs
+          (
+            stdenv.cc.isClang
+            && stdenv.hostPlatform.isStatic
+            && stdenv.cc.libcxx != null
+            && stdenv.cc.libcxx.isLLVM
+          )
+          {
+            NIX_CFLAGS_COMPILE = [
+              "-rtlib=compiler-rt"
+              "-unwindlib=libunwind"
+            ];
+
+            buildInputs = [
+              pkgs.llvmPackages.libunwind
+            ];
+          }
+      );
+
   boehmgc =
     (pkgs.boehmgc.override {
       enableLargeConfig = true;
+      inherit stdenv;
     }).overrideAttrs
       (attrs: {
         # Increase the initial mark stack size to avoid stack
@@ -27,7 +59,33 @@ scope: {
         # small, run Nix with GC_PRINT_STATS=1 and look for messages
         # such as `Mark stack overflow`, `No room to copy back mark
         # stack`, and `Grew mark stack to ... frames`.
-        NIX_CFLAGS_COMPILE = "-DINITIAL_MARK_STACK_SIZE=1048576";
+        NIX_CFLAGS_COMPILE = [
+          "-DINITIAL_MARK_STACK_SIZE=1048576"
+        ]
+        # For some reason that is not clear, it is wanting to use libgcc_eh which is not available.
+        # Force this to be built with compiler-rt & libunwind over libgcc_eh works.
+        # Issue: https://github.com/NixOS/nixpkgs/issues/177129
+        ++
+          lib.optionals
+            (
+              stdenv.cc.isClang
+              && stdenv.hostPlatform.isStatic
+              && stdenv.cc.libcxx != null
+              && stdenv.cc.libcxx.isLLVM
+            )
+            [
+              "-rtlib=compiler-rt"
+              "-unwindlib=libunwind"
+            ];
+
+        buildInputs =
+          (attrs.buildInputs or [ ])
+          ++ lib.optional (
+            stdenv.cc.isClang
+            && stdenv.hostPlatform.isStatic
+            && stdenv.cc.libcxx != null
+            && stdenv.cc.libcxx.isLLVM
+          ) pkgs.llvmPackages.libunwind;
       });
 
   lowdown =
@@ -74,6 +132,7 @@ scope: {
         "--with-thread"
       ];
       enableIcu = false;
+      inherit stdenv;
     }).overrideAttrs
       (old: {
         # Need to remove `--with-*` to use `--with-libraries=...`
@@ -82,4 +141,10 @@ scope: {
       });
 
   wasmtime = pkgs.callPackage ./wasmtime.nix { };
+
+  curl = pkgs.curl.override {
+    # libpsl uses a data file needed at runtime, not useful for nix.
+    pslSupport = !stdenv.hostPlatform.isStatic;
+    idnSupport = !stdenv.hostPlatform.isStatic;
+  };
 }

src/libcmd/meson.build

@@ -99,7 +99,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
   cpp_pch : do_pch ? [ 'pch/precompiled-headers.hh' ] : [],
 )

src/libexpr-c/meson.build

@@ -54,7 +54,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )
 

src/libexpr-test-support/meson.build

@@ -50,7 +50,7 @@ this_library = library(
   # TODO: Remove `-lrapidcheck` when https://github.com/emil-e/rapidcheck/pull/326
   #       is available. See also ../libutil/build.meson
   link_args : linker_export_flags + [ '-lrapidcheck' ],
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )
 

src/libexpr/meson.build

@@ -7,6 +7,8 @@ project(
     # TODO(Qyriad): increase the warning level
     'warning_level=1',
     'errorlogs=true', # Please print logs for tests that fail
+    'unity=on',
+    'unity_size=1024',
   ],
   meson_version : '>= 1.1',
   license : 'LGPL-2.1-or-later',
@@ -77,6 +79,17 @@ endif
 # Used in public header. Affects ABI!
 configdata_pub.set('NIX_USE_BOEHMGC', bdw_gc.found().to_int())
 
+link_args = []
+
+wasmtime_required = get_option('wasm').disable_if(
+  get_option('default_library') == 'static',
+  error_message : 'Building with wasmtime and static linking is not supported',
+)
+
+if wasmtime_required.enabled()
+  link_args += '-lwasmtime'
+endif
+
 toml11 = dependency(
   'toml11',
   version : '>=3.7.0',
@@ -156,14 +169,12 @@ sources = files(
   'eval-cache.cc',
   'eval-error.cc',
   'eval-gc.cc',
-  'eval-profiler-settings.cc',
   'eval-profiler.cc',
   'eval-settings.cc',
   'eval.cc',
   'function-trace.cc',
   'get-drvs.cc',
   'json-to-value.cc',
-  'lexer-helpers.cc',
   'nixexpr.cc',
   'parallel-eval.cc',
   'paths.cc',
@@ -216,6 +227,8 @@ parser_library = static_library(
   'nixexpr-parser',
   parser_tab,
   lexer_tab,
+  # Putting eval-profiler-settings.cc here to work around an inscrutable gcc compiler error when doing a unity build.
+  files('eval-profiler-settings.cc', 'lexer-helpers.cc'),
   cpp_args : parser_library_cpp_args,
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
@@ -226,6 +239,7 @@ parser_library = static_library(
   override_options : [
     'b_ndebug=@0@'.format(not get_option('debug')),
     'b_lto=@0@'.format(get_option('b_lto') and cxx.get_id() != 'gcc'),
+    'unity=off',
   ],
 )
 
@@ -239,9 +253,9 @@ this_library = library(
   soversion : nix_soversion,
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
-  link_args : linker_export_flags + [ '-lwasmtime' ],
+  link_args : linker_export_flags + link_args,
   link_whole : [ parser_library ],
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
   cpp_pch : do_pch ? [ 'pch/precompiled-headers.hh' ] : [],
 )

src/libexpr/meson.options

@@ -3,3 +3,9 @@ option(
   type : 'feature',
   description : 'enable garbage collection in the Nix expression evaluator (requires Boehm GC)',
 )
+
+option(
+  'wasm',
+  type : 'feature',
+  description : 'enable wasmtime integration into the Nix expression evaluator',
+)

src/libexpr/package.nix

@@ -30,6 +30,11 @@
   # Temporarily disabled on Windows because the `GC_throw_bad_alloc`
   # symbol is missing during linking.
   enableGC ? !stdenv.hostPlatform.isWindows,
+
+  # Whether to use wasmtime for wasm integration in the Nix language evaluator
+  #
+  # Temporarily disabled when static linking due to Rust not compiling
+  enableWasm ? !stdenv.hostPlatform.isStatic,
 }:
 
 let
@@ -65,8 +70,8 @@ mkMesonLibrary (finalAttrs: {
 
   buildInputs = [
     toml11
-    wasmtime
-  ];
+  ]
+  ++ lib.optional enableWasm wasmtime;
 
   propagatedBuildInputs = [
     nix-util
@@ -79,8 +84,20 @@ mkMesonLibrary (finalAttrs: {
 
   mesonFlags = [
     (lib.mesonEnable "gc" enableGC)
+    (lib.mesonEnable "wasm" enableWasm)
   ];
 
+  # Fixes a problem with the "nix-expr-libcxxStdenv-static" package output.
+  # For some reason that is not clear, it is wanting to use libgcc_eh which is not available.
+  # Force this to be built with compiler-rt over libgcc_eh works.
+  # Issue: https://github.com/NixOS/nixpkgs/issues/177129
+  NIX_CFLAGS_COMPILE = lib.optional (
+    stdenv.cc.isClang
+    && stdenv.hostPlatform.isStatic
+    && stdenv.cc.libcxx != null
+    && stdenv.cc.libcxx.isLLVM
+  ) "-rtlib=compiler-rt";
+
   meta = {
     platforms = lib.platforms.unix ++ lib.platforms.windows;
   };

src/libexpr/primops/meson.build

@@ -9,5 +9,8 @@ sources += files(
   'fetchMercurial.cc',
   'fetchTree.cc',
   'fromTOML.cc',
-  'wasm.cc',
 )
+
+if wasmtime_required.enabled()
+  sources += files('wasm.cc')
+endif

src/libfetchers-c/meson.build

@@ -57,7 +57,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )
 

src/libfetchers/include/nix/fetchers/input-cache.hh

@@ -1,3 +1,5 @@
+#pragma once
+
 #include "nix/fetchers/fetchers.hh"
 
 namespace nix::fetchers {

src/libfetchers/meson.build

@@ -7,6 +7,8 @@ project(
     # TODO(Qyriad): increase the warning level
     'warning_level=1',
     'errorlogs=true', # Please print logs for tests that fail
+    'unity=on',
+    'unity_size=1024',
   ],
   meson_version : '>= 1.1',
   license : 'LGPL-2.1-or-later',
@@ -72,7 +74,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
   cpp_pch : do_pch ? [ 'pch/precompiled-headers.hh' ] : [],
 )

src/libflake-c/meson.build

@@ -57,7 +57,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )
 

src/libflake/meson.build

@@ -62,7 +62,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )
 

src/libmain-c/meson.build

@@ -49,7 +49,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )
 

src/libmain/meson.build

@@ -81,7 +81,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )
 

src/libstore-c/meson.build

@@ -52,7 +52,7 @@ this_library = library(
   dependencies : deps_public + deps_private + deps_other,
   include_directories : include_dirs,
   link_args : linker_export_flags,
-  prelink : true, # For C++ static initializers
+  prelink : prelink, # For C++ static initializers
   install : true,
 )