mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-06-01 13:56:18 +03:00
Andrew Kelley
1201 lines
50 KiB
Zig
1201 lines
50 KiB
Zig
/// Populated during the make phase when there is a long-lived compiler process.
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/// Managed by the build runner, not user build script.
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zig_process: ?*Step.ZigProcess,
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fn make(step: *Step, options: Step.MakeOptions) !void {
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const b = step.owner;
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const compile: *Compile = @fieldParentPtr("step", step);
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const zig_args = try getZigArgs(compile, false);
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const maybe_output_dir = step.evalZigProcess(
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zig_args,
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options.progress_node,
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(b.graph.incremental == true) and (options.watch or options.web_server != null),
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options.web_server,
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options.gpa,
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) catch |err| switch (err) {
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error.NeedCompileErrorCheck => {
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assert(compile.expect_errors != null);
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try checkCompileErrors(compile);
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return;
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},
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else => |e| return e,
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};
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// Update generated files
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if (maybe_output_dir) |output_dir| {
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if (compile.emit_directory) |lp| {
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lp.path = b.fmt("{f}", .{output_dir});
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}
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// zig fmt: off
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if (compile.generated_bin) |lp| lp.path = compile.outputPath(output_dir, .bin);
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if (compile.generated_pdb) |lp| lp.path = compile.outputPath(output_dir, .pdb);
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// hack for stage2_x86_64 + coff
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if (compile.generated_compiler_rt_dyn_lib) |lp| lp.path = compile.outputPath(output_dir, .compiler_rt_dyn_lib);
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if (compile.generated_implib) |lp| lp.path = compile.outputPath(output_dir, .implib);
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if (compile.generated_h) |lp| lp.path = compile.outputPath(output_dir, .h);
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if (compile.generated_docs) |lp| lp.path = compile.outputPath(output_dir, .docs);
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if (compile.generated_asm) |lp| lp.path = compile.outputPath(output_dir, .@"asm");
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if (compile.generated_llvm_ir) |lp| lp.path = compile.outputPath(output_dir, .llvm_ir);
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if (compile.generated_llvm_bc) |lp| lp.path = compile.outputPath(output_dir, .llvm_bc);
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// zig fmt: on
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}
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if (compile.kind == .lib and compile.linkage != null and compile.linkage.? == .dynamic and
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compile.version != null and compile.generated_bin != null and
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std.Build.wantSharedLibSymLinks(compile.rootModuleTarget()))
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{
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try doAtomicSymLinks(
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step,
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compile.getEmittedBin().getPath2(b, step),
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compile.major_only_filename.?,
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compile.name_only_filename.?,
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);
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}
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}
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fn getZigArgs(compile: *Compile, fuzz: bool) ![][]const u8 {
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const step = &compile.step;
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const b = step.owner;
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const arena = b.allocator;
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var zig_args = std.array_list.Managed([]const u8).init(arena);
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defer zig_args.deinit();
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try zig_args.append(b.graph.zig_exe);
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const cmd = switch (compile.kind) {
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.lib => "build-lib",
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.exe => "build-exe",
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.obj => "build-obj",
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.@"test" => "test",
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.test_obj => "test-obj",
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};
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try zig_args.append(cmd);
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if (b.reference_trace) |some| {
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try zig_args.append(try std.fmt.allocPrint(arena, "-freference-trace={d}", .{some}));
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}
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try addFlag(&zig_args, "allow-so-scripts", compile.allow_so_scripts orelse b.graph.allow_so_scripts);
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try addFlag(&zig_args, "llvm", compile.use_llvm);
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try addFlag(&zig_args, "lld", compile.use_lld);
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try addFlag(&zig_args, "new-linker", compile.use_new_linker);
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if (compile.root_module.resolved_target.?.query.ofmt) |ofmt| {
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try zig_args.append(try std.fmt.allocPrint(arena, "-ofmt={s}", .{@tagName(ofmt)}));
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}
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switch (compile.entry) {
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.default => {},
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.disabled => try zig_args.append("-fno-entry"),
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.enabled => try zig_args.append("-fentry"),
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.symbol_name => |entry_name| {
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try zig_args.append(try std.fmt.allocPrint(arena, "-fentry={s}", .{entry_name}));
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},
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}
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{
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for (compile.force_undefined_symbols.keys()) |symbol_name| {
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try zig_args.append("--force_undefined");
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try zig_args.append(symbol_name.*);
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}
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}
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if (compile.stack_size) |stack_size| {
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try zig_args.append("--stack");
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try zig_args.append(try std.fmt.allocPrint(arena, "{}", .{stack_size}));
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}
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if (fuzz) {
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try zig_args.append("-ffuzz");
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}
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{
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// Stores system libraries that have already been seen for at least one
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// module, along with any arguments that need to be passed to the
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// compiler for each module individually.
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var seen_system_libs: std.StringHashMapUnmanaged([]const []const u8) = .empty;
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var frameworks: std.StringArrayHashMapUnmanaged(Module.LinkFrameworkOptions) = .empty;
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var prev_has_cflags = false;
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var prev_has_rcflags = false;
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var prev_search_strategy: Module.SystemLib.SearchStrategy = .paths_first;
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var prev_preferred_link_mode: std.builtin.LinkMode = .dynamic;
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// Track the number of positional arguments so that a nice error can be
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// emitted if there is nothing to link.
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var total_linker_objects: usize = @intFromBool(compile.root_module.root_source_file != null);
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// Fully recursive iteration including dynamic libraries to detect
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// libc and libc++ linkage.
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for (compile.getCompileDependencies(true)) |some_compile| {
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for (some_compile.root_module.getGraph().modules) |mod| {
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if (mod.link_libc == true) compile.is_linking_libc = true;
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if (mod.link_libcpp == true) compile.is_linking_libcpp = true;
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}
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}
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var cli_named_modules = try CliNamedModules.init(arena, compile.root_module);
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// For this loop, don't chase dynamic libraries because their link
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// objects are already linked.
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for (compile.getCompileDependencies(false)) |dep_compile| {
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for (dep_compile.root_module.getGraph().modules) |mod| {
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// While walking transitive dependencies, if a given link object is
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// already included in a library, it should not redundantly be
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// placed on the linker line of the dependee.
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const my_responsibility = dep_compile == compile;
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const already_linked = !my_responsibility and dep_compile.isDynamicLibrary();
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// Inherit dependencies on darwin frameworks.
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if (!already_linked) {
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for (mod.frameworks.keys(), mod.frameworks.values()) |name, info| {
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try frameworks.put(arena, name, info);
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}
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}
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// Inherit dependencies on system libraries and static libraries.
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for (mod.link_objects.items) |link_object| {
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switch (link_object) {
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.static_path => |static_path| {
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if (my_responsibility) {
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try zig_args.append(static_path.getPath2(mod.owner, step));
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total_linker_objects += 1;
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}
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},
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.system_lib => |system_lib| {
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const system_lib_gop = try seen_system_libs.getOrPut(arena, system_lib.name);
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if (system_lib_gop.found_existing) {
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try zig_args.appendSlice(system_lib_gop.value_ptr.*);
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continue;
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} else {
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system_lib_gop.value_ptr.* = &.{};
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}
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if (already_linked)
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continue;
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if ((system_lib.search_strategy != prev_search_strategy or
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system_lib.preferred_link_mode != prev_preferred_link_mode) and
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compile.linkage != .static)
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{
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switch (system_lib.search_strategy) {
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.no_fallback => switch (system_lib.preferred_link_mode) {
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.dynamic => try zig_args.append("-search_dylibs_only"),
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.static => try zig_args.append("-search_static_only"),
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},
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.paths_first => switch (system_lib.preferred_link_mode) {
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.dynamic => try zig_args.append("-search_paths_first"),
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.static => try zig_args.append("-search_paths_first_static"),
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},
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.mode_first => switch (system_lib.preferred_link_mode) {
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.dynamic => try zig_args.append("-search_dylibs_first"),
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.static => try zig_args.append("-search_static_first"),
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},
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}
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prev_search_strategy = system_lib.search_strategy;
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prev_preferred_link_mode = system_lib.preferred_link_mode;
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}
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const prefix: []const u8 = prefix: {
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if (system_lib.needed) break :prefix "-needed-l";
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if (system_lib.weak) break :prefix "-weak-l";
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break :prefix "-l";
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};
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switch (system_lib.use_pkg_config) {
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.no => try zig_args.append(b.fmt("{s}{s}", .{ prefix, system_lib.name })),
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.yes, .force => {
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if (compile.runPkgConfig(system_lib.name)) |result| {
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try zig_args.appendSlice(result.cflags);
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try zig_args.appendSlice(result.libs);
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try seen_system_libs.put(arena, system_lib.name, result.cflags);
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} else |err| switch (err) {
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error.PkgConfigInvalidOutput,
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error.PkgConfigCrashed,
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error.PkgConfigFailed,
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error.PkgConfigNotInstalled,
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error.PackageNotFound,
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=> switch (system_lib.use_pkg_config) {
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.yes => {
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// pkg-config failed, so fall back to linking the library
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// by name directly.
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try zig_args.append(b.fmt("{s}{s}", .{
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prefix,
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system_lib.name,
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}));
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},
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.force => {
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panic("pkg-config failed for library {s}", .{system_lib.name});
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},
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.no => unreachable,
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},
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else => |e| return e,
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}
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},
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}
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},
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.other_step => |other| {
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switch (other.kind) {
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.exe => return step.fail("cannot link with an executable build artifact", .{}),
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.@"test" => return step.fail("cannot link with a test", .{}),
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.obj, .test_obj => {
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const included_in_lib_or_obj = !my_responsibility and
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(dep_compile.kind == .lib or dep_compile.kind == .obj or dep_compile.kind == .test_obj);
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if (!already_linked and !included_in_lib_or_obj) {
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try zig_args.append(other.getEmittedBin().getPath2(b, step));
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total_linker_objects += 1;
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}
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},
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.lib => l: {
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const other_produces_implib = other.producesImplib();
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const other_is_static = other_produces_implib or other.isStaticLibrary();
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if (compile.isStaticLibrary() and other_is_static) {
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// Avoid putting a static library inside a static library.
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break :l;
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}
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// For DLLs, we must link against the implib.
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// For everything else, we directly link
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// against the library file.
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const full_path_lib = if (other_produces_implib)
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try other.getGeneratedFilePath("generated_implib", &compile.step)
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else
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try other.getGeneratedFilePath("generated_bin", &compile.step);
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try zig_args.append(full_path_lib);
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total_linker_objects += 1;
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if (other.linkage == .dynamic and
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compile.rootModuleTarget().os.tag != .windows)
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{
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if (fs.path.dirname(full_path_lib)) |dirname| {
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try zig_args.append("-rpath");
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try zig_args.append(dirname);
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}
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}
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},
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}
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},
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.assembly_file => |asm_file| l: {
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if (!my_responsibility) break :l;
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if (prev_has_cflags) {
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try zig_args.append("-cflags");
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try zig_args.append("--");
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prev_has_cflags = false;
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}
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try zig_args.append(asm_file.getPath2(mod.owner, step));
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total_linker_objects += 1;
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},
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.c_source_file => |c_source_file| l: {
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if (!my_responsibility) break :l;
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if (prev_has_cflags or c_source_file.flags.len != 0) {
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try zig_args.append("-cflags");
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for (c_source_file.flags) |arg| {
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try zig_args.append(arg);
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}
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try zig_args.append("--");
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}
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prev_has_cflags = (c_source_file.flags.len != 0);
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if (c_source_file.language) |lang| {
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try zig_args.append("-x");
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try zig_args.append(lang.internalIdentifier());
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}
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try zig_args.append(c_source_file.file.getPath2(mod.owner, step));
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if (c_source_file.language != null) {
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try zig_args.append("-x");
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try zig_args.append("none");
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}
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total_linker_objects += 1;
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},
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.c_source_files => |c_source_files| l: {
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if (!my_responsibility) break :l;
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if (prev_has_cflags or c_source_files.flags.len != 0) {
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try zig_args.append("-cflags");
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for (c_source_files.flags) |arg| {
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try zig_args.append(arg);
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}
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try zig_args.append("--");
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}
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prev_has_cflags = (c_source_files.flags.len != 0);
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if (c_source_files.language) |lang| {
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try zig_args.append("-x");
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try zig_args.append(lang.internalIdentifier());
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}
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const root_path = c_source_files.root.getPath2(mod.owner, step);
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for (c_source_files.files) |file| {
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try zig_args.append(b.pathJoin(&.{ root_path, file }));
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}
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if (c_source_files.language != null) {
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try zig_args.append("-x");
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try zig_args.append("none");
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}
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total_linker_objects += c_source_files.files.len;
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},
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.win32_resource_file => |rc_source_file| l: {
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if (!my_responsibility) break :l;
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if (rc_source_file.flags.len == 0 and rc_source_file.include_paths.len == 0) {
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if (prev_has_rcflags) {
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try zig_args.append("-rcflags");
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try zig_args.append("--");
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prev_has_rcflags = false;
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}
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} else {
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try zig_args.append("-rcflags");
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for (rc_source_file.flags) |arg| {
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try zig_args.append(arg);
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}
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for (rc_source_file.include_paths) |include_path| {
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try zig_args.append("/I");
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try zig_args.append(include_path.getPath2(mod.owner, step));
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}
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try zig_args.append("--");
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prev_has_rcflags = true;
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}
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try zig_args.append(rc_source_file.file.getPath2(mod.owner, step));
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total_linker_objects += 1;
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},
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}
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}
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// We need to emit the --mod argument here so that the above link objects
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// have the correct parent module, but only if the module is part of
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// this compilation.
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if (!my_responsibility) continue;
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if (cli_named_modules.modules.getIndex(mod)) |module_cli_index| {
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const module_cli_name = cli_named_modules.names.keys()[module_cli_index];
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try mod.appendZigProcessFlags(&zig_args, step);
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// --dep arguments
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try zig_args.ensureUnusedCapacity(mod.import_table.count() * 2);
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for (mod.import_table.keys(), mod.import_table.values()) |name, import| {
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const import_index = cli_named_modules.modules.getIndex(import).?;
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const import_cli_name = cli_named_modules.names.keys()[import_index];
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zig_args.appendAssumeCapacity("--dep");
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if (std.mem.eql(u8, import_cli_name, name)) {
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zig_args.appendAssumeCapacity(import_cli_name);
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} else {
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zig_args.appendAssumeCapacity(b.fmt("{s}={s}", .{ name, import_cli_name }));
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}
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}
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// When the CLI sees a -M argument, it determines whether it
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// implies the existence of a Zig compilation unit based on
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// whether there is a root source file. If there is no root
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// source file, then this is not a zig compilation unit - it is
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// perhaps a set of linker objects, or C source files instead.
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// Linker objects are added to the CLI globally, while C source
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// files must have a module parent.
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if (mod.root_source_file) |lp| {
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const src = lp.getPath2(mod.owner, step);
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try zig_args.append(b.fmt("-M{s}={s}", .{ module_cli_name, src }));
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} else if (moduleNeedsCliArg(mod)) {
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try zig_args.append(b.fmt("-M{s}", .{module_cli_name}));
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}
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}
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}
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}
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|
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if (total_linker_objects == 0) {
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return step.fail("the linker needs one or more objects to link", .{});
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}
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for (frameworks.keys(), frameworks.values()) |name, info| {
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if (info.needed) {
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try zig_args.append("-needed_framework");
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} else if (info.weak) {
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try zig_args.append("-weak_framework");
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} else {
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try zig_args.append("-framework");
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}
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try zig_args.append(name);
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}
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if (compile.is_linking_libcpp) {
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try zig_args.append("-lc++");
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}
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if (compile.is_linking_libc) {
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try zig_args.append("-lc");
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}
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}
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if (compile.win32_manifest) |manifest_file| {
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try zig_args.append(manifest_file.getPath2(b, step));
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}
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if (compile.win32_module_definition) |module_file| {
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try zig_args.append(module_file.getPath2(b, step));
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}
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if (compile.image_base) |image_base| {
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try zig_args.append("--image-base");
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try zig_args.append(b.fmt("0x{x}", .{image_base}));
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}
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|
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for (compile.filters) |filter| {
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try zig_args.append("--test-filter");
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try zig_args.append(filter);
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}
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|
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if (compile.test_runner) |test_runner| {
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try zig_args.append("--test-runner");
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try zig_args.append(test_runner.path.getPath2(b, step));
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}
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|
|
for (b.debug_log_scopes) |log_scope| {
|
|
try zig_args.append("--debug-log");
|
|
try zig_args.append(log_scope);
|
|
}
|
|
|
|
if (b.debug_compile_errors) {
|
|
try zig_args.append("--debug-compile-errors");
|
|
}
|
|
|
|
if (b.debug_incremental) {
|
|
try zig_args.append("--debug-incremental");
|
|
}
|
|
|
|
if (b.verbose_air) try zig_args.append("--verbose-air");
|
|
if (b.verbose_llvm_ir) |path| try zig_args.append(b.fmt("--verbose-llvm-ir={s}", .{path}));
|
|
if (b.verbose_llvm_bc) |path| try zig_args.append(b.fmt("--verbose-llvm-bc={s}", .{path}));
|
|
if (b.verbose_link or compile.verbose_link) try zig_args.append("--verbose-link");
|
|
if (b.verbose_cc or compile.verbose_cc) try zig_args.append("--verbose-cc");
|
|
if (b.verbose_llvm_cpu_features) try zig_args.append("--verbose-llvm-cpu-features");
|
|
if (b.graph.time_report) try zig_args.append("--time-report");
|
|
|
|
if (compile.generated_asm != null) try zig_args.append("-femit-asm");
|
|
if (compile.generated_bin == null) try zig_args.append("-fno-emit-bin");
|
|
if (compile.generated_docs != null) try zig_args.append("-femit-docs");
|
|
if (compile.generated_implib != null) try zig_args.append("-femit-implib");
|
|
if (compile.generated_llvm_bc != null) try zig_args.append("-femit-llvm-bc");
|
|
if (compile.generated_llvm_ir != null) try zig_args.append("-femit-llvm-ir");
|
|
if (compile.generated_h != null) try zig_args.append("-femit-h");
|
|
|
|
try addFlag(&zig_args, "formatted-panics", compile.formatted_panics);
|
|
|
|
switch (compile.compress_debug_sections) {
|
|
.none => {},
|
|
.zlib => try zig_args.append("--compress-debug-sections=zlib"),
|
|
.zstd => try zig_args.append("--compress-debug-sections=zstd"),
|
|
}
|
|
|
|
if (compile.link_eh_frame_hdr) {
|
|
try zig_args.append("--eh-frame-hdr");
|
|
}
|
|
if (compile.link_emit_relocs) {
|
|
try zig_args.append("--emit-relocs");
|
|
}
|
|
if (compile.link_function_sections) {
|
|
try zig_args.append("-ffunction-sections");
|
|
}
|
|
if (compile.link_data_sections) {
|
|
try zig_args.append("-fdata-sections");
|
|
}
|
|
if (compile.link_gc_sections) |x| {
|
|
try zig_args.append(if (x) "--gc-sections" else "--no-gc-sections");
|
|
}
|
|
if (!compile.linker_dynamicbase) {
|
|
try zig_args.append("--no-dynamicbase");
|
|
}
|
|
if (compile.linker_allow_shlib_undefined) |x| {
|
|
try zig_args.append(if (x) "-fallow-shlib-undefined" else "-fno-allow-shlib-undefined");
|
|
}
|
|
if (compile.link_z_notext) {
|
|
try zig_args.append("-z");
|
|
try zig_args.append("notext");
|
|
}
|
|
if (!compile.link_z_relro) {
|
|
try zig_args.append("-z");
|
|
try zig_args.append("norelro");
|
|
}
|
|
if (compile.link_z_lazy) {
|
|
try zig_args.append("-z");
|
|
try zig_args.append("lazy");
|
|
}
|
|
if (compile.link_z_common_page_size) |size| {
|
|
try zig_args.append("-z");
|
|
try zig_args.append(b.fmt("common-page-size={d}", .{size}));
|
|
}
|
|
if (compile.link_z_max_page_size) |size| {
|
|
try zig_args.append("-z");
|
|
try zig_args.append(b.fmt("max-page-size={d}", .{size}));
|
|
}
|
|
if (compile.link_z_defs) {
|
|
try zig_args.append("-z");
|
|
try zig_args.append("defs");
|
|
}
|
|
|
|
if (compile.libc_file) |libc_file| {
|
|
try zig_args.append("--libc");
|
|
try zig_args.append(libc_file.getPath2(b, step));
|
|
} else if (b.libc_file) |libc_file| {
|
|
try zig_args.append("--libc");
|
|
try zig_args.append(libc_file);
|
|
}
|
|
|
|
try zig_args.append("--cache-dir");
|
|
try zig_args.append(b.cache_root.path orelse ".");
|
|
|
|
try zig_args.append("--global-cache-dir");
|
|
try zig_args.append(b.graph.global_cache_root.path orelse ".");
|
|
|
|
if (b.graph.debug_compiler_runtime_libs) |mode|
|
|
try zig_args.append(b.fmt("--debug-rt={t}", .{mode}));
|
|
|
|
try zig_args.append("--name");
|
|
try zig_args.append(compile.name);
|
|
|
|
if (compile.linkage) |some| switch (some) {
|
|
.dynamic => try zig_args.append("-dynamic"),
|
|
.static => try zig_args.append("-static"),
|
|
};
|
|
if (compile.kind == .lib and compile.linkage != null and compile.linkage.? == .dynamic) {
|
|
if (compile.version) |version| {
|
|
try zig_args.append("--version");
|
|
try zig_args.append(b.fmt("{f}", .{version}));
|
|
}
|
|
|
|
if (compile.rootModuleTarget().os.tag.isDarwin()) {
|
|
const install_name = compile.install_name orelse b.fmt("@rpath/{s}{s}{s}", .{
|
|
compile.rootModuleTarget().libPrefix(),
|
|
compile.name,
|
|
compile.rootModuleTarget().dynamicLibSuffix(),
|
|
});
|
|
try zig_args.append("-install_name");
|
|
try zig_args.append(install_name);
|
|
}
|
|
}
|
|
|
|
if (compile.entitlements) |entitlements| {
|
|
try zig_args.appendSlice(&[_][]const u8{ "--entitlements", entitlements });
|
|
}
|
|
if (compile.pagezero_size) |pagezero_size| {
|
|
const size = try std.fmt.allocPrint(arena, "{x}", .{pagezero_size});
|
|
try zig_args.appendSlice(&[_][]const u8{ "-pagezero_size", size });
|
|
}
|
|
if (compile.headerpad_size) |headerpad_size| {
|
|
const size = try std.fmt.allocPrint(arena, "{x}", .{headerpad_size});
|
|
try zig_args.appendSlice(&[_][]const u8{ "-headerpad", size });
|
|
}
|
|
if (compile.headerpad_max_install_names) {
|
|
try zig_args.append("-headerpad_max_install_names");
|
|
}
|
|
if (compile.dead_strip_dylibs) {
|
|
try zig_args.append("-dead_strip_dylibs");
|
|
}
|
|
if (compile.force_load_objc) {
|
|
try zig_args.append("-ObjC");
|
|
}
|
|
if (compile.discard_local_symbols) {
|
|
try zig_args.append("--discard-all");
|
|
}
|
|
|
|
try addFlag(&zig_args, "compiler-rt", compile.bundle_compiler_rt);
|
|
try addFlag(&zig_args, "ubsan-rt", compile.bundle_ubsan_rt);
|
|
try addFlag(&zig_args, "dll-export-fns", compile.dll_export_fns);
|
|
if (compile.rdynamic) {
|
|
try zig_args.append("-rdynamic");
|
|
}
|
|
if (compile.import_memory) {
|
|
try zig_args.append("--import-memory");
|
|
}
|
|
if (compile.export_memory) {
|
|
try zig_args.append("--export-memory");
|
|
}
|
|
if (compile.import_symbols) {
|
|
try zig_args.append("--import-symbols");
|
|
}
|
|
if (compile.import_table) {
|
|
try zig_args.append("--import-table");
|
|
}
|
|
if (compile.export_table) {
|
|
try zig_args.append("--export-table");
|
|
}
|
|
if (compile.initial_memory) |initial_memory| {
|
|
try zig_args.append(b.fmt("--initial-memory={d}", .{initial_memory}));
|
|
}
|
|
if (compile.max_memory) |max_memory| {
|
|
try zig_args.append(b.fmt("--max-memory={d}", .{max_memory}));
|
|
}
|
|
if (compile.shared_memory) {
|
|
try zig_args.append("--shared-memory");
|
|
}
|
|
if (compile.global_base) |global_base| {
|
|
try zig_args.append(b.fmt("--global-base={d}", .{global_base}));
|
|
}
|
|
|
|
if (compile.wasi_exec_model) |model| {
|
|
try zig_args.append(b.fmt("-mexec-model={s}", .{@tagName(model)}));
|
|
}
|
|
if (compile.linker_script) |linker_script| {
|
|
try zig_args.append("--script");
|
|
try zig_args.append(linker_script.getPath2(b, step));
|
|
}
|
|
|
|
if (compile.version_script) |version_script| {
|
|
try zig_args.append("--version-script");
|
|
try zig_args.append(version_script.getPath2(b, step));
|
|
}
|
|
if (compile.linker_allow_undefined_version) |x| {
|
|
try zig_args.append(if (x) "--undefined-version" else "--no-undefined-version");
|
|
}
|
|
|
|
if (compile.linker_enable_new_dtags) |enabled| {
|
|
try zig_args.append(if (enabled) "--enable-new-dtags" else "--disable-new-dtags");
|
|
}
|
|
|
|
if (compile.kind == .@"test") {
|
|
if (compile.exec_cmd_args) |exec_cmd_args| {
|
|
for (exec_cmd_args) |cmd_arg| {
|
|
if (cmd_arg) |arg| {
|
|
try zig_args.append("--test-cmd");
|
|
try zig_args.append(arg);
|
|
} else {
|
|
try zig_args.append("--test-cmd-bin");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (b.sysroot) |sysroot| {
|
|
try zig_args.appendSlice(&[_][]const u8{ "--sysroot", sysroot });
|
|
}
|
|
|
|
// -I and -L arguments that appear after the last --mod argument apply to all modules.
|
|
const cwd: Io.Dir = .cwd();
|
|
const io = b.graph.io;
|
|
|
|
for (b.search_prefixes.items) |search_prefix| {
|
|
var prefix_dir = cwd.openDir(io, search_prefix, .{}) catch |err| {
|
|
return step.fail("unable to open prefix directory '{s}': {s}", .{
|
|
search_prefix, @errorName(err),
|
|
});
|
|
};
|
|
defer prefix_dir.close(io);
|
|
|
|
// Avoid passing -L and -I flags for nonexistent directories.
|
|
// This prevents a warning, that should probably be upgraded to an error in Zig's
|
|
// CLI parsing code, when the linker sees an -L directory that does not exist.
|
|
|
|
if (prefix_dir.access(io, "lib", .{})) |_| {
|
|
try zig_args.appendSlice(&.{
|
|
"-L", b.pathJoin(&.{ search_prefix, "lib" }),
|
|
});
|
|
} else |err| switch (err) {
|
|
error.FileNotFound => {},
|
|
else => |e| return step.fail("unable to access '{s}/lib' directory: {s}", .{
|
|
search_prefix, @errorName(e),
|
|
}),
|
|
}
|
|
|
|
if (prefix_dir.access(io, "include", .{})) |_| {
|
|
try zig_args.appendSlice(&.{
|
|
"-I", b.pathJoin(&.{ search_prefix, "include" }),
|
|
});
|
|
} else |err| switch (err) {
|
|
error.FileNotFound => {},
|
|
else => |e| return step.fail("unable to access '{s}/include' directory: {s}", .{
|
|
search_prefix, @errorName(e),
|
|
}),
|
|
}
|
|
}
|
|
|
|
if (compile.rc_includes != .any) {
|
|
try zig_args.append("-rcincludes");
|
|
try zig_args.append(@tagName(compile.rc_includes));
|
|
}
|
|
|
|
try addFlag(&zig_args, "each-lib-rpath", compile.each_lib_rpath);
|
|
|
|
if (compile.build_id orelse b.build_id) |build_id| {
|
|
try zig_args.append(switch (build_id) {
|
|
.hexstring => |hs| b.fmt("--build-id=0x{x}", .{hs.toSlice()}),
|
|
.none, .fast, .uuid, .sha1, .md5 => b.fmt("--build-id={s}", .{@tagName(build_id)}),
|
|
});
|
|
}
|
|
|
|
const opt_zig_lib_dir = if (compile.zig_lib_dir) |dir|
|
|
dir.getPath2(b, step)
|
|
else if (b.graph.zig_lib_directory.path) |_|
|
|
b.fmt("{f}", .{b.graph.zig_lib_directory})
|
|
else
|
|
null;
|
|
|
|
if (opt_zig_lib_dir) |zig_lib_dir| {
|
|
try zig_args.append("--zig-lib-dir");
|
|
try zig_args.append(zig_lib_dir);
|
|
}
|
|
|
|
try addFlag(&zig_args, "PIE", compile.pie);
|
|
|
|
if (compile.lto) |lto| {
|
|
try zig_args.append(switch (lto) {
|
|
.full => "-flto=full",
|
|
.thin => "-flto=thin",
|
|
.none => "-fno-lto",
|
|
});
|
|
}
|
|
|
|
try addFlag(&zig_args, "sanitize-coverage-trace-pc-guard", compile.sanitize_coverage_trace_pc_guard);
|
|
|
|
if (compile.subsystem) |subsystem| {
|
|
try zig_args.append("--subsystem");
|
|
try zig_args.append(@tagName(subsystem));
|
|
}
|
|
|
|
if (compile.mingw_unicode_entry_point) {
|
|
try zig_args.append("-municode");
|
|
}
|
|
|
|
if (compile.error_limit) |err_limit| try zig_args.appendSlice(&.{
|
|
"--error-limit", b.fmt("{d}", .{err_limit}),
|
|
});
|
|
|
|
try addFlag(&zig_args, "incremental", b.graph.incremental);
|
|
|
|
try zig_args.append("--listen=-");
|
|
|
|
// Windows has an argument length limit of 32,766 characters, macOS 262,144 and Linux
|
|
// 2,097,152. If our args exceed 30 KiB, we instead write them to a "response file" and
|
|
// pass that to zig, e.g. via 'zig build-lib @args.rsp'
|
|
// See @file syntax here: https://gcc.gnu.org/onlinedocs/gcc/Overall-Options.html
|
|
var args_length: usize = 0;
|
|
for (zig_args.items) |arg| {
|
|
args_length += arg.len + 1; // +1 to account for null terminator
|
|
}
|
|
if (args_length >= 30 * 1024) {
|
|
try b.cache_root.handle.createDirPath(io, "args");
|
|
|
|
const args_to_escape = zig_args.items[2..];
|
|
var escaped_args = try std.array_list.Managed([]const u8).initCapacity(arena, args_to_escape.len);
|
|
arg_blk: for (args_to_escape) |arg| {
|
|
for (arg, 0..) |c, arg_idx| {
|
|
if (c == '\\' or c == '"') {
|
|
// Slow path for arguments that need to be escaped. We'll need to allocate and copy
|
|
var escaped: std.ArrayList(u8) = .empty;
|
|
try escaped.ensureTotalCapacityPrecise(arena, arg.len + 1);
|
|
try escaped.appendSlice(arena, arg[0..arg_idx]);
|
|
for (arg[arg_idx..]) |to_escape| {
|
|
if (to_escape == '\\' or to_escape == '"') try escaped.append(arena, '\\');
|
|
try escaped.append(arena, to_escape);
|
|
}
|
|
escaped_args.appendAssumeCapacity(escaped.items);
|
|
continue :arg_blk;
|
|
}
|
|
}
|
|
escaped_args.appendAssumeCapacity(arg); // no escaping needed so just use original argument
|
|
}
|
|
|
|
// Write the args to zig-cache/args/<SHA256 hash of args> to avoid conflicts with
|
|
// other zig build commands running in parallel.
|
|
const partially_quoted = try std.mem.join(arena, "\" \"", escaped_args.items);
|
|
const args = try std.mem.concat(arena, u8, &[_][]const u8{ "\"", partially_quoted, "\"" });
|
|
|
|
var args_hash: [Sha256.digest_length]u8 = undefined;
|
|
Sha256.hash(args, &args_hash, .{});
|
|
var args_hex_hash: [Sha256.digest_length * 2]u8 = undefined;
|
|
_ = try std.fmt.bufPrint(&args_hex_hash, "{x}", .{&args_hash});
|
|
|
|
const args_file = "args" ++ fs.path.sep_str ++ args_hex_hash;
|
|
if (b.cache_root.handle.access(io, args_file, .{})) |_| {
|
|
// The args file is already present from a previous run.
|
|
} else |err| switch (err) {
|
|
error.FileNotFound => {
|
|
var af = b.cache_root.handle.createFileAtomic(io, args_file, .{
|
|
.replace = false,
|
|
.make_path = true,
|
|
}) catch |e| return step.fail("failed creating tmp args file {f}{s}: {t}", .{
|
|
b.cache_root, args_file, e,
|
|
});
|
|
defer af.deinit(io);
|
|
|
|
af.file.writeStreamingAll(io, args) catch |e| {
|
|
return step.fail("failed writing args data to tmp file {f}{s}: {t}", .{
|
|
b.cache_root, args_file, e,
|
|
});
|
|
};
|
|
// Note we can't clean up this file, not even after build
|
|
// success, because that might interfere with another build
|
|
// process that needs the same file.
|
|
af.link(io) catch |e| switch (e) {
|
|
error.PathAlreadyExists => {
|
|
// The args file was created by another concurrent build process.
|
|
},
|
|
else => |other_err| return step.fail("failed linking tmp file {f}{s}: {t}", .{
|
|
b.cache_root, args_file, other_err,
|
|
}),
|
|
};
|
|
},
|
|
else => |other_err| return other_err,
|
|
}
|
|
|
|
const resolved_args_file = try mem.concat(arena, u8, &.{
|
|
"@",
|
|
try b.cache_root.join(arena, &.{args_file}),
|
|
});
|
|
|
|
zig_args.shrinkRetainingCapacity(2);
|
|
try zig_args.append(resolved_args_file);
|
|
}
|
|
|
|
return try zig_args.toOwnedSlice();
|
|
}
|
|
|
|
pub fn rebuildInFuzzMode(c: *Compile, gpa: Allocator, progress_node: std.Progress.Node) !Path {
|
|
c.step.result_error_msgs.clearRetainingCapacity();
|
|
c.step.result_stderr = "";
|
|
|
|
c.step.result_error_bundle.deinit(gpa);
|
|
c.step.result_error_bundle = std.zig.ErrorBundle.empty;
|
|
|
|
if (c.step.result_failed_command) |cmd| {
|
|
gpa.free(cmd);
|
|
c.step.result_failed_command = null;
|
|
}
|
|
|
|
const zig_args = try getZigArgs(c, true);
|
|
const maybe_output_bin_path = try c.step.evalZigProcess(zig_args, progress_node, false, null, gpa);
|
|
return maybe_output_bin_path.?;
|
|
}
|
|
|
|
pub fn doAtomicSymLinks(
|
|
step: *Step,
|
|
output_path: []const u8,
|
|
filename_major_only: []const u8,
|
|
filename_name_only: []const u8,
|
|
) !void {
|
|
const b = step.owner;
|
|
const io = b.graph.io;
|
|
const out_dir = fs.path.dirname(output_path) orelse ".";
|
|
const out_basename = fs.path.basename(output_path);
|
|
// sym link for libfoo.so.1 to libfoo.so.1.2.3
|
|
const major_only_path = b.pathJoin(&.{ out_dir, filename_major_only });
|
|
const cwd: Io.Dir = .cwd();
|
|
cwd.symLinkAtomic(io, out_basename, major_only_path, .{}) catch |err| {
|
|
return step.fail("unable to symlink {s} -> {s}: {s}", .{
|
|
major_only_path, out_basename, @errorName(err),
|
|
});
|
|
};
|
|
// sym link for libfoo.so to libfoo.so.1
|
|
const name_only_path = b.pathJoin(&.{ out_dir, filename_name_only });
|
|
cwd.symLinkAtomic(io, filename_major_only, name_only_path, .{}) catch |err| {
|
|
return step.fail("Unable to symlink {s} -> {s}: {s}", .{
|
|
name_only_path, filename_major_only, @errorName(err),
|
|
});
|
|
};
|
|
}
|
|
|
|
fn execPkgConfigList(b: *std.Build, out_code: *u8) (PkgConfigError || RunError)![]const PkgConfigPkg {
|
|
const pkg_config_exe = b.graph.environ_map.get("PKG_CONFIG") orelse "pkg-config";
|
|
const stdout = try b.runAllowFail(&[_][]const u8{ pkg_config_exe, "--list-all" }, out_code, .ignore);
|
|
var list = std.array_list.Managed(PkgConfigPkg).init(b.allocator);
|
|
errdefer list.deinit();
|
|
var line_it = mem.tokenizeAny(u8, stdout, "\r\n");
|
|
while (line_it.next()) |line| {
|
|
if (mem.trim(u8, line, " \t").len == 0) continue;
|
|
var tok_it = mem.tokenizeAny(u8, line, " \t");
|
|
try list.append(PkgConfigPkg{
|
|
.name = tok_it.next() orelse return error.PkgConfigInvalidOutput,
|
|
.desc = tok_it.rest(),
|
|
});
|
|
}
|
|
return list.toOwnedSlice();
|
|
}
|
|
|
|
fn getPkgConfigList(b: *std.Build) ![]const PkgConfigPkg {
|
|
if (b.pkg_config_pkg_list) |res| {
|
|
return res;
|
|
}
|
|
var code: u8 = undefined;
|
|
if (execPkgConfigList(b, &code)) |list| {
|
|
b.pkg_config_pkg_list = list;
|
|
return list;
|
|
} else |err| {
|
|
const result = switch (err) {
|
|
error.ProcessTerminated => error.PkgConfigCrashed,
|
|
error.ExecNotSupported => error.PkgConfigFailed,
|
|
error.ExitCodeFailure => error.PkgConfigFailed,
|
|
error.FileNotFound => error.PkgConfigNotInstalled,
|
|
error.InvalidName => error.PkgConfigNotInstalled,
|
|
error.PkgConfigInvalidOutput => error.PkgConfigInvalidOutput,
|
|
else => return err,
|
|
};
|
|
b.pkg_config_pkg_list = result;
|
|
return result;
|
|
}
|
|
}
|
|
|
|
fn addFlag(args: *std.array_list.Managed([]const u8), comptime name: []const u8, opt: ?bool) !void {
|
|
const cond = opt orelse return;
|
|
try args.ensureUnusedCapacity(1);
|
|
if (cond) {
|
|
args.appendAssumeCapacity("-f" ++ name);
|
|
} else {
|
|
args.appendAssumeCapacity("-fno-" ++ name);
|
|
}
|
|
}
|
|
|
|
const PkgConfigResult = struct {
|
|
cflags: []const []const u8,
|
|
libs: []const []const u8,
|
|
};
|
|
|
|
/// Run pkg-config for the given library name and parse the output, returning the arguments
|
|
/// that should be passed to zig to link the given library.
|
|
fn runPkgConfig(compile: *Compile, lib_name: []const u8) !PkgConfigResult {
|
|
const wl_rpath_prefix = "-Wl,-rpath,";
|
|
|
|
const b = compile.step.owner;
|
|
const arena = b.allocator;
|
|
const pkg_name = match: {
|
|
// First we have to map the library name to pkg config name. Unfortunately,
|
|
// there are several examples where this is not straightforward:
|
|
// -lSDL2 -> pkg-config sdl2
|
|
// -lgdk-3 -> pkg-config gdk-3.0
|
|
// -latk-1.0 -> pkg-config atk
|
|
// -lpulse -> pkg-config libpulse
|
|
const pkgs = try getPkgConfigList(b);
|
|
|
|
// Exact match means instant winner.
|
|
for (pkgs) |pkg| {
|
|
if (mem.eql(u8, pkg.name, lib_name)) {
|
|
break :match pkg.name;
|
|
}
|
|
}
|
|
|
|
// Next we'll try ignoring case.
|
|
for (pkgs) |pkg| {
|
|
if (std.ascii.eqlIgnoreCase(pkg.name, lib_name)) {
|
|
break :match pkg.name;
|
|
}
|
|
}
|
|
|
|
// Prefixed "lib" or suffixed ".0".
|
|
for (pkgs) |pkg| {
|
|
if (std.ascii.findIgnoreCase(pkg.name, lib_name)) |pos| {
|
|
const prefix = pkg.name[0..pos];
|
|
const suffix = pkg.name[pos + lib_name.len ..];
|
|
if (prefix.len > 0 and !mem.eql(u8, prefix, "lib")) continue;
|
|
if (suffix.len > 0 and !mem.eql(u8, suffix, ".0")) continue;
|
|
break :match pkg.name;
|
|
}
|
|
}
|
|
|
|
// Trimming "-1.0".
|
|
if (mem.endsWith(u8, lib_name, "-1.0")) {
|
|
const trimmed_lib_name = lib_name[0 .. lib_name.len - "-1.0".len];
|
|
for (pkgs) |pkg| {
|
|
if (std.ascii.eqlIgnoreCase(pkg.name, trimmed_lib_name)) {
|
|
break :match pkg.name;
|
|
}
|
|
}
|
|
}
|
|
|
|
return error.PackageNotFound;
|
|
};
|
|
|
|
var code: u8 = undefined;
|
|
const pkg_config_exe = b.graph.environ_map.get("PKG_CONFIG") orelse "pkg-config";
|
|
const stdout = if (b.runAllowFail(&[_][]const u8{
|
|
pkg_config_exe,
|
|
pkg_name,
|
|
"--cflags",
|
|
"--libs",
|
|
}, &code, .ignore)) |stdout| stdout else |err| switch (err) {
|
|
error.ProcessTerminated => return error.PkgConfigCrashed,
|
|
error.ExecNotSupported => return error.PkgConfigFailed,
|
|
error.ExitCodeFailure => return error.PkgConfigFailed,
|
|
error.FileNotFound => return error.PkgConfigNotInstalled,
|
|
else => return err,
|
|
};
|
|
|
|
var zig_cflags: std.ArrayList([]const u8) = .empty;
|
|
defer zig_cflags.deinit(arena);
|
|
var zig_libs: std.ArrayList([]const u8) = .empty;
|
|
defer zig_libs.deinit(arena);
|
|
|
|
var arg_it = mem.tokenizeAny(u8, stdout, " \r\n\t");
|
|
while (arg_it.next()) |arg| {
|
|
if (mem.eql(u8, arg, "-I")) {
|
|
const dir = arg_it.next() orelse return error.PkgConfigInvalidOutput;
|
|
try zig_cflags.appendSlice(arena, &.{ "-I", dir });
|
|
} else if (mem.startsWith(u8, arg, "-I")) {
|
|
try zig_cflags.append(arena, arg);
|
|
} else if (mem.eql(u8, arg, "-L")) {
|
|
const dir = arg_it.next() orelse return error.PkgConfigInvalidOutput;
|
|
try zig_libs.appendSlice(arena, &.{ "-L", dir });
|
|
} else if (mem.startsWith(u8, arg, "-L")) {
|
|
try zig_libs.append(arena, arg);
|
|
} else if (mem.eql(u8, arg, "-l")) {
|
|
const lib = arg_it.next() orelse return error.PkgConfigInvalidOutput;
|
|
try zig_libs.appendSlice(arena, &.{ "-l", lib });
|
|
} else if (mem.startsWith(u8, arg, "-l")) {
|
|
try zig_libs.append(arena, arg);
|
|
} else if (mem.eql(u8, arg, "-D")) {
|
|
const macro = arg_it.next() orelse return error.PkgConfigInvalidOutput;
|
|
try zig_cflags.appendSlice(arena, &.{ "-D", macro });
|
|
} else if (mem.startsWith(u8, arg, "-D")) {
|
|
try zig_cflags.append(arena, arg);
|
|
} else if (mem.startsWith(u8, arg, wl_rpath_prefix)) {
|
|
try zig_cflags.appendSlice(arena, &.{ "-rpath", arg[wl_rpath_prefix.len..] });
|
|
} else if (b.debug_pkg_config) {
|
|
return compile.step.fail("unknown pkg-config flag '{s}'", .{arg});
|
|
}
|
|
}
|
|
|
|
try zig_cflags.shrinkToLen(arena);
|
|
try zig_libs.shrinkToLen(arena);
|
|
|
|
return .{
|
|
.cflags = zig_cflags.toOwnedSliceAssert(),
|
|
.libs = zig_libs.toOwnedSliceAssert(),
|
|
};
|
|
}
|
|
|
|
fn checkCompileErrors(compile: *Compile) !void {
|
|
// Clear this field so that it does not get printed by the build runner.
|
|
const actual_eb = compile.step.result_error_bundle;
|
|
compile.step.result_error_bundle = .empty;
|
|
|
|
const arena = compile.step.owner.allocator;
|
|
|
|
const actual_errors = ae: {
|
|
var aw: std.Io.Writer.Allocating = .init(arena);
|
|
defer aw.deinit();
|
|
try actual_eb.renderToWriter(.{
|
|
.include_reference_trace = false,
|
|
.include_source_line = false,
|
|
}, &aw.writer);
|
|
break :ae try aw.toOwnedSlice();
|
|
};
|
|
|
|
// Render the expected lines into a string that we can compare verbatim.
|
|
var expected_generated: std.ArrayList(u8) = .empty;
|
|
const expect_errors = compile.expect_errors.?;
|
|
|
|
var actual_line_it = mem.splitScalar(u8, actual_errors, '\n');
|
|
|
|
// TODO merge this with the testing.expectEqualStrings logic, and also CheckFile
|
|
switch (expect_errors) {
|
|
.starts_with => |expect_starts_with| {
|
|
if (std.mem.startsWith(u8, actual_errors, expect_starts_with)) return;
|
|
return compile.step.fail(
|
|
\\
|
|
\\========= should start with: ============
|
|
\\{s}
|
|
\\========= but not found: ================
|
|
\\{s}
|
|
\\=========================================
|
|
, .{ expect_starts_with, actual_errors });
|
|
},
|
|
.contains => |expect_line| {
|
|
while (actual_line_it.next()) |actual_line| {
|
|
if (!matchCompileError(actual_line, expect_line)) continue;
|
|
return;
|
|
}
|
|
|
|
return compile.step.fail(
|
|
\\
|
|
\\========= should contain: ===============
|
|
\\{s}
|
|
\\========= but not found: ================
|
|
\\{s}
|
|
\\=========================================
|
|
, .{ expect_line, actual_errors });
|
|
},
|
|
.stderr_contains => |expect_line| {
|
|
const actual_stderr: []const u8 = if (compile.step.result_error_msgs.items.len > 0)
|
|
compile.step.result_error_msgs.items[0]
|
|
else
|
|
&.{};
|
|
compile.step.result_error_msgs.clearRetainingCapacity();
|
|
|
|
var stderr_line_it = mem.splitScalar(u8, actual_stderr, '\n');
|
|
|
|
while (stderr_line_it.next()) |actual_line| {
|
|
if (!matchCompileError(actual_line, expect_line)) continue;
|
|
return;
|
|
}
|
|
|
|
return compile.step.fail(
|
|
\\
|
|
\\========= should contain: ===============
|
|
\\{s}
|
|
\\========= but not found: ================
|
|
\\{s}
|
|
\\=========================================
|
|
, .{ expect_line, actual_stderr });
|
|
},
|
|
.exact => |expect_lines| {
|
|
for (expect_lines) |expect_line| {
|
|
const actual_line = actual_line_it.next() orelse {
|
|
try expected_generated.appendSlice(arena, expect_line);
|
|
try expected_generated.append(arena, '\n');
|
|
continue;
|
|
};
|
|
if (matchCompileError(actual_line, expect_line)) {
|
|
try expected_generated.appendSlice(arena, actual_line);
|
|
try expected_generated.append(arena, '\n');
|
|
continue;
|
|
}
|
|
try expected_generated.appendSlice(arena, expect_line);
|
|
try expected_generated.append(arena, '\n');
|
|
}
|
|
|
|
if (mem.eql(u8, expected_generated.items, actual_errors)) return;
|
|
|
|
return compile.step.fail(
|
|
\\
|
|
\\========= expected: =====================
|
|
\\{s}
|
|
\\========= but found: ====================
|
|
\\{s}
|
|
\\=========================================
|
|
, .{ expected_generated.items, actual_errors });
|
|
},
|
|
}
|
|
}
|
|
|
|
fn matchCompileError(actual: []const u8, expected: []const u8) bool {
|
|
if (mem.endsWith(u8, actual, expected)) return true;
|
|
if (mem.startsWith(u8, expected, ":?:?: ")) {
|
|
if (mem.endsWith(u8, actual, expected[":?:?: ".len..])) return true;
|
|
}
|
|
// We scan for /?/ in expected line and if there is a match, we match everything
|
|
// up to and after /?/.
|
|
const expected_trim = mem.trim(u8, expected, " ");
|
|
if (mem.find(u8, expected_trim, "/?/")) |index| {
|
|
const actual_trim = mem.trim(u8, actual, " ");
|
|
const lhs = expected_trim[0..index];
|
|
const rhs = expected_trim[index + "/?/".len ..];
|
|
if (mem.startsWith(u8, actual_trim, lhs) and mem.endsWith(u8, actual_trim, rhs)) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
fn moduleNeedsCliArg(mod: *const Module) bool {
|
|
return for (mod.link_objects.items) |o| switch (o) {
|
|
.c_source_file, .c_source_files, .assembly_file, .win32_resource_file => break true,
|
|
else => continue,
|
|
} else false;
|
|
}
|
|
|