rename std.heap.direct_allocator to std.heap.page_allocator

std.heap.direct_allocator is still available for now but it is marked
deprecated.

doc/docgen.zig

@@ -16,7 +16,7 @@ const tmp_dir_name = "docgen_tmp";
 const test_out_path = tmp_dir_name ++ fs.path.sep_str ++ "test" ++ exe_ext;
 
 pub fn main() !void {
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
 
     const allocator = &arena.allocator;

doc/langref.html.in

@@ -6428,7 +6428,7 @@ fn amainWrap() void {
 }
 
 fn amain() !void {
-    const allocator = std.heap.direct_allocator;
+    const allocator = std.heap.page_allocator;
     var download_frame = async fetchUrl(allocator, "https://example.com/");
     var awaited_download_frame = false;
     errdefer if (!awaited_download_frame) {
@@ -6498,7 +6498,7 @@ fn amainWrap() void {
 }
 
 fn amain() !void {
-    const allocator = std.heap.direct_allocator;
+    const allocator = std.heap.page_allocator;
     var download_frame = async fetchUrl(allocator, "https://example.com/");
     var awaited_download_frame = false;
     errdefer if (!awaited_download_frame) {
@@ -7315,7 +7315,7 @@ test "field access by string" {
 const std = @import("std");
 
 test "heap allocated frame" {
-    const frame = try std.heap.direct_allocator.create(@Frame(func));
+    const frame = try std.heap.page_allocator.create(@Frame(func));
     frame.* = async func();
 }
 
@@ -9341,7 +9341,7 @@ fn concat(allocator: *Allocator, a: []const u8, b: []const u8) ![]u8 {
 const std = @import("std");
 
 pub fn main() !void {
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
 
     const allocator = &arena.allocator;

lib/std/atomic/queue.zig

@@ -152,8 +152,8 @@ const puts_per_thread = 500;
 const put_thread_count = 3;
 
 test "std.atomic.Queue" {
-    var plenty_of_memory = try std.heap.direct_allocator.alloc(u8, 300 * 1024);
-    defer std.heap.direct_allocator.free(plenty_of_memory);
+    var plenty_of_memory = try std.heap.page_allocator.alloc(u8, 300 * 1024);
+    defer std.heap.page_allocator.free(plenty_of_memory);
 
     var fixed_buffer_allocator = std.heap.ThreadSafeFixedBufferAllocator.init(plenty_of_memory);
     var a = &fixed_buffer_allocator.allocator;

lib/std/atomic/stack.zig

@@ -86,8 +86,8 @@ const puts_per_thread = 500;
 const put_thread_count = 3;
 
 test "std.atomic.stack" {
-    var plenty_of_memory = try std.heap.direct_allocator.alloc(u8, 300 * 1024);
-    defer std.heap.direct_allocator.free(plenty_of_memory);
+    var plenty_of_memory = try std.heap.page_allocator.alloc(u8, 300 * 1024);
+    defer std.heap.page_allocator.free(plenty_of_memory);
 
     var fixed_buffer_allocator = std.heap.ThreadSafeFixedBufferAllocator.init(plenty_of_memory);
     var a = &fixed_buffer_allocator.allocator;

lib/std/buf_map.zig

@@ -83,7 +83,7 @@ pub const BufMap = struct {
 };
 
 test "BufMap" {
-    var bufmap = BufMap.init(std.heap.direct_allocator);
+    var bufmap = BufMap.init(std.heap.page_allocator);
     defer bufmap.deinit();
 
     try bufmap.set("x", "1");

lib/std/buf_set.zig

@@ -65,7 +65,7 @@ pub const BufSet = struct {
 };
 
 test "BufSet" {
-    var bufset = BufSet.init(std.heap.direct_allocator);
+    var bufset = BufSet.init(std.heap.page_allocator);
     defer bufset.deinit();
 
     try bufset.put("x");

lib/std/build.zig

@@ -969,7 +969,7 @@ pub const Builder = struct {
 };
 
 test "builder.findProgram compiles" {
-    const builder = try Builder.create(std.heap.direct_allocator, "zig", "zig-cache", "zig-cache");
+    const builder = try Builder.create(std.heap.page_allocator, "zig", "zig-cache", "zig-cache");
     _ = builder.findProgram([_][]const u8{}, [_][]const u8{}) catch null;
 }
 

lib/std/debug.zig

@@ -2352,7 +2352,7 @@ var debug_info_arena_allocator: std.heap.ArenaAllocator = undefined;
 fn getDebugInfoAllocator() *mem.Allocator {
     if (debug_info_allocator) |a| return a;
 
-    debug_info_arena_allocator = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    debug_info_arena_allocator = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     debug_info_allocator = &debug_info_arena_allocator.allocator;
     return &debug_info_arena_allocator.allocator;
 }

lib/std/event/fs.zig

@@ -1306,7 +1306,7 @@ test "write a file, watch it, write it again" {
     // TODO provide a way to run tests in evented I/O mode
     if (!std.io.is_async) return error.SkipZigTest;
 
-    const allocator = std.heap.direct_allocator;
+    const allocator = std.heap.page_allocator;
 
     // TODO move this into event loop too
     try os.makePath(allocator, test_tmp_dir);

lib/std/event/group.zig

@@ -115,7 +115,7 @@ test "std.event.Group" {
     // TODO provide a way to run tests in evented I/O mode
     if (!std.io.is_async) return error.SkipZigTest;
 
-    const handle = async testGroup(std.heap.direct_allocator);
+    const handle = async testGroup(std.heap.page_allocator);
 }
 
 async fn testGroup(allocator: *Allocator) void {

lib/std/event/loop.zig

@@ -129,7 +129,7 @@ pub const Loop = struct {
     /// max(thread_count - 1, 0)
     pub fn initThreadPool(self: *Loop, thread_count: usize) !void {
         // TODO: https://github.com/ziglang/zig/issues/3539
-        const allocator = std.heap.direct_allocator;
+        const allocator = std.heap.page_allocator;
         self.* = Loop{
             .pending_event_count = 1,
             .allocator = allocator,

lib/std/event/rwlock.zig

@@ -220,7 +220,7 @@ test "std.event.RwLock" {
     var lock = RwLock.init();
     defer lock.deinit();
 
-    const handle = testLock(std.heap.direct_allocator, &lock);
+    const handle = testLock(std.heap.page_allocator, &lock);
 
     const expected_result = [1]i32{shared_it_count * @intCast(i32, shared_test_data.len)} ** shared_test_data.len;
     testing.expectEqualSlices(i32, expected_result, shared_test_data);

lib/std/hash/auto_hash.zig

@@ -235,8 +235,8 @@ test "hash pointer" {
 test "hash slice shallow" {
     // Allocate one array dynamically so that we're assured it is not merged
     // with the other by the optimization passes.
-    const array1 = try std.heap.direct_allocator.create([6]u32);
-    defer std.heap.direct_allocator.destroy(array1);
+    const array1 = try std.heap.page_allocator.create([6]u32);
+    defer std.heap.page_allocator.destroy(array1);
     array1.* = [_]u32{ 1, 2, 3, 4, 5, 6 };
     const array2 = [_]u32{ 1, 2, 3, 4, 5, 6 };
     const a = array1[0..];
@@ -251,8 +251,8 @@ test "hash slice shallow" {
 test "hash slice deep" {
     // Allocate one array dynamically so that we're assured it is not merged
     // with the other by the optimization passes.
-    const array1 = try std.heap.direct_allocator.create([6]u32);
-    defer std.heap.direct_allocator.destroy(array1);
+    const array1 = try std.heap.page_allocator.create([6]u32);
+    defer std.heap.page_allocator.destroy(array1);
     array1.* = [_]u32{ 1, 2, 3, 4, 5, 6 };
     const array2 = [_]u32{ 1, 2, 3, 4, 5, 6 };
     const a = array1[0..];
@@ -279,7 +279,7 @@ test "hash struct deep" {
         }
     };
 
-    const allocator = std.heap.direct_allocator;
+    const allocator = std.heap.page_allocator;
     const foo = try Foo.init(allocator, 123, 1.0, true);
     const bar = try Foo.init(allocator, 123, 1.0, true);
     const baz = try Foo.init(allocator, 123, 1.0, false);

lib/std/hash_map.zig

@@ -414,7 +414,7 @@ pub fn HashMap(comptime K: type, comptime V: type, comptime hash: fn (key: K) u3
 }
 
 test "basic hash map usage" {
-    var map = AutoHashMap(i32, i32).init(std.heap.direct_allocator);
+    var map = AutoHashMap(i32, i32).init(std.heap.page_allocator);
     defer map.deinit();
 
     testing.expect((try map.put(1, 11)) == null);
@@ -458,7 +458,7 @@ test "basic hash map usage" {
 }
 
 test "iterator hash map" {
-    var reset_map = AutoHashMap(i32, i32).init(std.heap.direct_allocator);
+    var reset_map = AutoHashMap(i32, i32).init(std.heap.page_allocator);
     defer reset_map.deinit();
 
     try reset_map.putNoClobber(1, 11);
@@ -504,7 +504,7 @@ test "iterator hash map" {
 }
 
 test "ensure capacity" {
-    var map = AutoHashMap(i32, i32).init(std.heap.direct_allocator);
+    var map = AutoHashMap(i32, i32).init(std.heap.page_allocator);
     defer map.deinit();
 
     try map.ensureCapacity(20);

lib/std/heap.zig

@@ -33,13 +33,16 @@ fn cShrink(self: *Allocator, old_mem: []u8, old_align: u29, new_size: usize, new
 
 /// This allocator makes a syscall directly for every allocation and free.
 /// Thread-safe and lock-free.
-pub const direct_allocator = &direct_allocator_state;
-var direct_allocator_state = Allocator{
-    .reallocFn = DirectAllocator.realloc,
-    .shrinkFn = DirectAllocator.shrink,
+pub const page_allocator = &page_allocator_state;
+var page_allocator_state = Allocator{
+    .reallocFn = PageAllocator.realloc,
+    .shrinkFn = PageAllocator.shrink,
 };
 
-const DirectAllocator = struct {
+/// Deprecated. Use `page_allocator`.
+pub const direct_allocator = page_allocator;
+
+const PageAllocator = struct {
     fn alloc(allocator: *Allocator, n: usize, alignment: u29) error{OutOfMemory}![]u8 {
         if (n == 0) return &[0]u8{};
 
@@ -484,7 +487,7 @@ pub const FixedBufferAllocator = struct {
     }
 };
 
-// FIXME: Exposed LLVM intrinsics is a bug
+// TODO Exposed LLVM intrinsics is a bug
 // See: https://github.com/ziglang/zig/issues/2291
 extern fn @"llvm.wasm.memory.size.i32"(u32) u32;
 extern fn @"llvm.wasm.memory.grow.i32"(u32, u32) i32;
@@ -725,8 +728,8 @@ test "c_allocator" {
     }
 }
 
-test "DirectAllocator" {
-    const allocator = direct_allocator;
+test "PageAllocator" {
+    const allocator = page_allocator;
     try testAllocator(allocator);
     try testAllocatorAligned(allocator, 16);
     try testAllocatorLargeAlignment(allocator);
@@ -735,7 +738,7 @@ test "DirectAllocator" {
     if (builtin.os == .windows) {
         // Trying really large alignment. As mentionned in the implementation,
         // VirtualAlloc returns 64K aligned addresses. We want to make sure
-        // DirectAllocator works beyond that, as it's not tested by
+        // PageAllocator works beyond that, as it's not tested by
         // `testAllocatorLargeAlignment`.
         const slice = try allocator.alignedAlloc(u8, 1 << 20, 128);
         slice[0] = 0x12;
@@ -758,7 +761,7 @@ test "HeapAllocator" {
 }
 
 test "ArenaAllocator" {
-    var arena_allocator = ArenaAllocator.init(direct_allocator);
+    var arena_allocator = ArenaAllocator.init(page_allocator);
     defer arena_allocator.deinit();
 
     try testAllocator(&arena_allocator.allocator);

lib/std/mutex.zig

@@ -125,8 +125,8 @@ const TestContext = struct {
 };
 
 test "std.Mutex" {
-    var plenty_of_memory = try std.heap.direct_allocator.alloc(u8, 300 * 1024);
-    defer std.heap.direct_allocator.free(plenty_of_memory);
+    var plenty_of_memory = try std.heap.page_allocator.alloc(u8, 300 * 1024);
+    defer std.heap.page_allocator.free(plenty_of_memory);
 
     var fixed_buffer_allocator = std.heap.ThreadSafeFixedBufferAllocator.init(plenty_of_memory);
     var a = &fixed_buffer_allocator.allocator;

lib/std/os/test.zig

@@ -234,6 +234,6 @@ test "pipe" {
 }
 
 test "argsAlloc" {
-    var args = try std.process.argsAlloc(std.heap.direct_allocator);
-    std.heap.direct_allocator.free(args);
+    var args = try std.process.argsAlloc(std.heap.page_allocator);
+    std.process.argsFree(std.heap.page_allocator, args);
 }

lib/std/packed_int_array.zig

@@ -622,7 +622,7 @@ test "PackedIntArray at end of available memory" {
         p: PackedArray,
     };
 
-    const allocator = std.heap.direct_allocator;
+    const allocator = std.heap.page_allocator;
 
     var pad = try allocator.create(Padded);
     defer allocator.destroy(pad);
@@ -636,7 +636,7 @@ test "PackedIntSlice at end of available memory" {
     }
     const PackedSlice = PackedIntSlice(u11);
 
-    const allocator = std.heap.direct_allocator;
+    const allocator = std.heap.page_allocator;
 
     var page = try allocator.alloc(u8, std.mem.page_size);
     defer allocator.free(page);

lib/std/segmented_list.zig

@@ -339,7 +339,7 @@ pub fn SegmentedList(comptime T: type, comptime prealloc_item_count: usize) type
 }
 
 test "std.SegmentedList" {
-    var a = std.heap.direct_allocator;
+    var a = std.heap.page_allocator;
 
     try testSegmentedList(0, a);
     try testSegmentedList(1, a);

lib/std/special/build_runner.zig

@@ -17,7 +17,7 @@ pub fn main() !void {
     // one shot program. We don't need to waste time freeing memory and finding places to squish
     // bytes into. So we free everything all at once at the very end.
 
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
 
     const allocator = &arena.allocator;

lib/std/unicode/throughput_test.zig

@@ -4,7 +4,7 @@ const std = @import("std");
 pub fn main() !void {
     const stdout = &std.io.getStdOut().outStream().stream;
 
-    const args = try std.process.argsAlloc(std.heap.direct_allocator);
+    const args = try std.process.argsAlloc(std.heap.page_allocator);
 
     @fence(.SeqCst);
     var timer = try std.time.Timer.start();

src-self-hosted/dep_tokenizer.zig

@@ -837,7 +837,7 @@ test "error prereq - continuation expecting end-of-line" {
 
 // - tokenize input, emit textual representation, and compare to expect
 fn depTokenizer(input: []const u8, expect: []const u8) !void {
-    var arena_allocator = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena_allocator = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     const arena = &arena_allocator.allocator;
     defer arena_allocator.deinit();
 

test/cli.zig

@@ -8,7 +8,7 @@ const ChildProcess = std.ChildProcess;
 var a: *std.mem.Allocator = undefined;
 
 pub fn main() !void {
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
 
     var arg_it = process.args();

test/stage1/behavior/async_fn.zig

@@ -410,8 +410,8 @@ test "heap allocated async function frame" {
         var x: i32 = 42;
 
         fn doTheTest() !void {
-            const frame = try std.heap.direct_allocator.create(@Frame(someFunc));
-            defer std.heap.direct_allocator.destroy(frame);
+            const frame = try std.heap.page_allocator.create(@Frame(someFunc));
+            defer std.heap.page_allocator.destroy(frame);
 
             expect(x == 42);
             frame.* = async someFunc();
@@ -671,7 +671,7 @@ fn testAsyncAwaitTypicalUsage(
         }
 
         fn amain() !void {
-            const allocator = std.heap.direct_allocator; // TODO once we have the debug allocator, use that, so that this can detect leaks
+            const allocator = std.heap.page_allocator; // TODO once we have the debug allocator, use that, so that this can detect leaks
             var download_frame = async fetchUrl(allocator, "https://example.com/");
             var download_awaited = false;
             errdefer if (!download_awaited) {
@@ -935,12 +935,12 @@ fn recursiveAsyncFunctionTest(comptime suspending_implementation: bool) type {
                 _ = async amain(&result);
                 return result;
             } else {
-                return fib(std.heap.direct_allocator, 10) catch unreachable;
+                return fib(std.heap.page_allocator, 10) catch unreachable;
             }
         }
 
         fn amain(result: *u32) void {
-            var x = async fib(std.heap.direct_allocator, 10);
+            var x = async fib(std.heap.page_allocator, 10);
             result.* = (await x) catch unreachable;
         }
     };
@@ -1132,7 +1132,9 @@ test "await used in expression after a fn call" {
         async fn add(a: i32, b: i32) i32 {
             return a + b;
         }
-        fn foo() i32 { return 1; }
+        fn foo() i32 {
+            return 1;
+        }
     };
     _ = async S.atest();
 }
@@ -1147,7 +1149,9 @@ test "async fn call used in expression after a fn call" {
         async fn add(a: i32, b: i32) i32 {
             return a + b;
         }
-        fn foo() i32 { return 1; }
+        fn foo() i32 {
+            return 1;
+        }
     };
     _ = async S.atest();
 }
@@ -1201,14 +1205,13 @@ test "correctly spill when returning the error union result of another async fn"
     resume S.global_frame;
 }
 
-
 test "spill target expr in a for loop" {
     const S = struct {
         var global_frame: anyframe = undefined;
 
         fn doTheTest() void {
             var foo = Foo{
-                .slice = [_]i32{1, 2},
+                .slice = [_]i32{ 1, 2 },
             };
             expect(atest(&foo) == 3);
         }
@@ -1239,7 +1242,7 @@ test "spill target expr in a for loop, with a var decl in the loop body" {
 
         fn doTheTest() void {
             var foo = Foo{
-                .slice = [_]i32{1, 2},
+                .slice = [_]i32{ 1, 2 },
             };
             expect(atest(&foo) == 3);
         }

test/standalone/brace_expansion/main.zig

@@ -182,7 +182,7 @@ pub fn main() !void {
     const stdin_file = io.getStdIn();
     const stdout_file = io.getStdOut();
 
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
 
     global_allocator = &arena.allocator;

tools/merge_anal_dumps.zig

@@ -6,7 +6,7 @@ const fieldIndex = std.meta.fieldIndex;
 const TypeId = builtin.TypeId;
 
 pub fn main() anyerror!void {
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     defer arena.deinit();
 
     const allocator = &arena.allocator;

tools/process_headers.zig

@@ -56,113 +56,113 @@ const MultiAbi = union(enum) {
 const glibc_targets = [_]LibCTarget{
     LibCTarget{
         .name = "aarch64_be-linux-gnu",
-        .arch = MultiArch {.specific = Arch.aarch64_be},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.aarch64_be },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "aarch64-linux-gnu",
-        .arch = MultiArch {.specific = Arch.aarch64},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.aarch64 },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "armeb-linux-gnueabi",
-        .arch = MultiArch {.specific = Arch.armeb},
-        .abi = MultiAbi {.specific = Abi.gnueabi},
+        .arch = MultiArch{ .specific = Arch.armeb },
+        .abi = MultiAbi{ .specific = Abi.gnueabi },
     },
     LibCTarget{
         .name = "armeb-linux-gnueabihf",
-        .arch = MultiArch {.specific = Arch.armeb},
-        .abi = MultiAbi {.specific = Abi.gnueabihf},
+        .arch = MultiArch{ .specific = Arch.armeb },
+        .abi = MultiAbi{ .specific = Abi.gnueabihf },
     },
     LibCTarget{
         .name = "arm-linux-gnueabi",
-        .arch = MultiArch {.specific = Arch.arm},
-        .abi = MultiAbi {.specific = Abi.gnueabi},
+        .arch = MultiArch{ .specific = Arch.arm },
+        .abi = MultiAbi{ .specific = Abi.gnueabi },
     },
     LibCTarget{
         .name = "arm-linux-gnueabihf",
-        .arch = MultiArch {.specific = Arch.arm},
-        .abi = MultiAbi {.specific = Abi.gnueabihf},
+        .arch = MultiArch{ .specific = Arch.arm },
+        .abi = MultiAbi{ .specific = Abi.gnueabihf },
     },
     LibCTarget{
         .name = "i686-linux-gnu",
-        .arch = MultiArch {.specific = Arch.i386},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.i386 },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "mips64el-linux-gnu-n32",
-        .arch = MultiArch {.specific = Arch.mips64el},
-        .abi = MultiAbi {.specific = Abi.gnuabin32},
+        .arch = MultiArch{ .specific = Arch.mips64el },
+        .abi = MultiAbi{ .specific = Abi.gnuabin32 },
     },
     LibCTarget{
         .name = "mips64el-linux-gnu-n64",
-        .arch = MultiArch {.specific = Arch.mips64el},
-        .abi = MultiAbi {.specific = Abi.gnuabi64},
+        .arch = MultiArch{ .specific = Arch.mips64el },
+        .abi = MultiAbi{ .specific = Abi.gnuabi64 },
     },
     LibCTarget{
         .name = "mips64-linux-gnu-n32",
-        .arch = MultiArch {.specific = Arch.mips64},
-        .abi = MultiAbi {.specific = Abi.gnuabin32},
+        .arch = MultiArch{ .specific = Arch.mips64 },
+        .abi = MultiAbi{ .specific = Abi.gnuabin32 },
     },
     LibCTarget{
         .name = "mips64-linux-gnu-n64",
-        .arch = MultiArch {.specific = Arch.mips64},
-        .abi = MultiAbi {.specific = Abi.gnuabi64},
+        .arch = MultiArch{ .specific = Arch.mips64 },
+        .abi = MultiAbi{ .specific = Abi.gnuabi64 },
     },
     LibCTarget{
         .name = "mipsel-linux-gnu",
-        .arch = MultiArch {.specific = Arch.mipsel},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.mipsel },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "mips-linux-gnu",
-        .arch = MultiArch {.specific = Arch.mips},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.mips },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "powerpc64le-linux-gnu",
-        .arch = MultiArch {.specific = Arch.powerpc64le},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.powerpc64le },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "powerpc64-linux-gnu",
-        .arch = MultiArch {.specific = Arch.powerpc64},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.powerpc64 },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "powerpc-linux-gnu",
-        .arch = MultiArch {.specific = Arch.powerpc},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.powerpc },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "riscv64-linux-gnu-rv64imac-lp64",
-        .arch = MultiArch {.specific = Arch.riscv64},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.riscv64 },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "s390x-linux-gnu",
-        .arch = MultiArch {.specific = Arch.s390x},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.s390x },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "sparc64-linux-gnu",
-        .arch = MultiArch {.specific = Arch.sparc},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.sparc },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "sparcv9-linux-gnu",
-        .arch = MultiArch {.specific = Arch.sparcv9},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.sparcv9 },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "x86_64-linux-gnu",
-        .arch = MultiArch {.specific = Arch.x86_64},
-        .abi = MultiAbi {.specific = Abi.gnu},
+        .arch = MultiArch{ .specific = Arch.x86_64 },
+        .abi = MultiAbi{ .specific = Abi.gnu },
     },
     LibCTarget{
         .name = "x86_64-linux-gnu-x32",
-        .arch = MultiArch {.specific = Arch.x86_64},
-        .abi = MultiAbi {.specific = Abi.gnux32},
+        .arch = MultiArch{ .specific = Arch.x86_64 },
+        .abi = MultiAbi{ .specific = Abi.gnux32 },
     },
 };
 
@@ -258,7 +258,7 @@ const LibCVendor = enum {
 };
 
 pub fn main() !void {
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     const allocator = &arena.allocator;
     const args = try std.process.argsAlloc(allocator);
     var search_paths = std.ArrayList([]const u8).init(allocator);

tools/update_glibc.zig

@@ -131,7 +131,7 @@ const Function = struct {
 };
 
 pub fn main() !void {
-    var arena = std.heap.ArenaAllocator.init(std.heap.direct_allocator);
+    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
     const allocator = &arena.allocator;
     const args = try std.process.argsAlloc(allocator);
     const in_glibc_dir = args[1]; // path to the unzipped tarball of glibc, e.g. ~/downloads/glibc-2.25