7611ed3484
closes #296
589 lines
19 KiB
Zig
589 lines
19 KiB
Zig
const io = @import("io.zig");
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const mem = @import("mem.zig");
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const debug = @import("debug.zig");
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const List = @import("list.zig").List;
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const HashMap = @import("hash_map.zig").HashMap;
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const Allocator = @import("mem.zig").Allocator;
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const os = @import("os/index.zig");
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const StdIo = os.ChildProcess.StdIo;
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const Term = os.ChildProcess.Term;
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const BufSet = @import("buf_set.zig").BufSet;
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error ExtraArg;
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error UncleanExit;
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pub const Builder = struct {
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allocator: &Allocator,
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exe_list: List(&Exe),
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lib_paths: List([]const u8),
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include_paths: List([]const u8),
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rpaths: List([]const u8),
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user_input_options: UserInputOptionsMap,
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available_options_map: AvailableOptionsMap,
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available_options_list: List(AvailableOption),
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verbose: bool,
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invalid_user_input: bool,
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const UserInputOptionsMap = HashMap([]const u8, UserInputOption, mem.hash_slice_u8, mem.eql_slice_u8);
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const AvailableOptionsMap = HashMap([]const u8, AvailableOption, mem.hash_slice_u8, mem.eql_slice_u8);
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const AvailableOption = struct {
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name: []const u8,
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type_id: TypeId,
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description: []const u8,
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};
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const UserInputOption = struct {
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name: []const u8,
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value: UserValue,
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used: bool,
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};
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const UserValue = enum {
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Flag,
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Scalar: []const u8,
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List: List([]const u8),
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};
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const TypeId = enum {
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Bool,
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Int,
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Float,
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String,
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List,
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};
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pub fn init(allocator: &Allocator) -> Builder {
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var self = Builder {
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.verbose = false,
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.invalid_user_input = false,
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.allocator = allocator,
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.exe_list = List(&Exe).init(allocator),
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.lib_paths = List([]const u8).init(allocator),
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.include_paths = List([]const u8).init(allocator),
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.rpaths = List([]const u8).init(allocator),
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.user_input_options = UserInputOptionsMap.init(allocator),
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.available_options_map = AvailableOptionsMap.init(allocator),
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.available_options_list = List(AvailableOption).init(allocator),
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};
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self.processNixOSEnvVars();
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return self;
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}
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pub fn deinit(self: &Builder) {
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self.exe_list.deinit();
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self.lib_paths.deinit();
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self.include_paths.deinit();
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self.rpaths.deinit();
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}
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pub fn addExe(self: &Builder, root_src: []const u8, name: []const u8) -> &Exe {
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return self.addExeErr(root_src, name) %% |err| handleErr(err);
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}
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pub fn addExeErr(self: &Builder, root_src: []const u8, name: []const u8) -> %&Exe {
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const exe = %return self.allocator.create(Exe);
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*exe = Exe {
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.verbose = false,
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.release = false,
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.root_src = root_src,
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.name = name,
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.target = Target.Native,
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.linker_script = LinkerScript.None,
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.link_libs = BufSet.init(self.allocator),
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};
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%return self.exe_list.append(exe);
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return exe;
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}
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pub fn addCIncludePath(self: &Builder, path: []const u8) {
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%%self.include_paths.append(path);
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}
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pub fn addRPath(self: &Builder, path: []const u8) {
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%%self.rpaths.append(path);
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}
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pub fn addLibPath(self: &Builder, path: []const u8) {
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%%self.lib_paths.append(path);
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}
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pub fn make(self: &Builder, zig_exe: []const u8, targets: []const []const u8) -> %void {
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if (targets.len != 0) {
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debug.panic("TODO non default targets");
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}
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var env_map = %return os.getEnvMap(self.allocator);
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for (self.exe_list.toSlice()) |exe| {
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var zig_args = List([]const u8).init(self.allocator);
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defer zig_args.deinit();
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%return zig_args.append("build_exe");
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%return zig_args.append(exe.root_src);
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if (exe.verbose) {
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%return zig_args.append("--verbose");
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}
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if (exe.release) {
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%return zig_args.append("--release");
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}
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%return zig_args.append("--name");
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%return zig_args.append(exe.name);
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switch (exe.target) {
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Target.Native => {},
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Target.Cross => |cross_target| {
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%return zig_args.append("--target-arch");
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%return zig_args.append(targetArchName(cross_target.arch));
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%return zig_args.append("--target-os");
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%return zig_args.append(targetOsName(cross_target.os));
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%return zig_args.append("--target-environ");
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%return zig_args.append(targetEnvironName(cross_target.environ));
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},
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}
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switch (exe.linker_script) {
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LinkerScript.None => {},
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LinkerScript.Embed => |script| {
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const tmp_file_name = "linker.ld.tmp"; // TODO issue #298
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io.writeFile(tmp_file_name, script, self.allocator)
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%% |err| debug.panic("unable to write linker script: {}\n", @errorName(err));
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%return zig_args.append("--linker-script");
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%return zig_args.append(tmp_file_name);
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},
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LinkerScript.Path => |path| {
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%return zig_args.append("--linker-script");
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%return zig_args.append(path);
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},
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}
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{
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var it = exe.link_libs.iterator();
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while (true) {
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const entry = it.next() ?? break;
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%return zig_args.append("--library");
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%return zig_args.append(entry.key);
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}
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}
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for (self.include_paths.toSliceConst()) |include_path| {
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%return zig_args.append("-isystem");
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%return zig_args.append(include_path);
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}
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for (self.rpaths.toSliceConst()) |rpath| {
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%return zig_args.append("-rpath");
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%return zig_args.append(rpath);
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}
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for (self.lib_paths.toSliceConst()) |lib_path| {
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%return zig_args.append("--library-path");
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%return zig_args.append(lib_path);
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}
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if (self.verbose) {
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printInvocation(zig_exe, zig_args);
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}
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// TODO issue #301
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var child = os.ChildProcess.spawn(zig_exe, zig_args.toSliceConst(), &env_map,
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StdIo.Ignore, StdIo.Inherit, StdIo.Inherit, self.allocator)
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%% |err| debug.panic("Unable to spawn zig compiler: {}\n", @errorName(err));
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const term = %%child.wait();
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switch (term) {
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Term.Clean => |code| {
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if (code != 0) {
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return error.UncleanExit;
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}
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},
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else => {
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return error.UncleanExit;
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},
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};
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}
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}
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fn processNixOSEnvVars(self: &Builder) {
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if (const nix_cflags_compile ?= os.getEnv("NIX_CFLAGS_COMPILE")) {
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var it = mem.split(nix_cflags_compile, ' ');
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while (true) {
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const word = it.next() ?? break;
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if (mem.eql(u8, word, "-isystem")) {
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const include_path = it.next() ?? {
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%%io.stderr.printf("Expected argument after -isystem in NIX_CFLAGS_COMPILE\n");
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break;
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};
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self.addCIncludePath(include_path);
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} else {
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%%io.stderr.printf("Unrecognized C flag from NIX_CFLAGS_COMPILE: {}\n", word);
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break;
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}
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}
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}
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if (const nix_ldflags ?= os.getEnv("NIX_LDFLAGS")) {
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var it = mem.split(nix_ldflags, ' ');
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while (true) {
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const word = it.next() ?? break;
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if (mem.eql(u8, word, "-rpath")) {
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const rpath = it.next() ?? {
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%%io.stderr.printf("Expected argument after -rpath in NIX_LDFLAGS\n");
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break;
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};
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self.addRPath(rpath);
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} else if (word.len > 2 and word[0] == '-' and word[1] == 'L') {
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const lib_path = word[2...];
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self.addLibPath(lib_path);
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} else {
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%%io.stderr.printf("Unrecognized C flag from NIX_LDFLAGS: {}\n", word);
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break;
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}
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}
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}
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}
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pub fn option(self: &Builder, comptime T: type, name: []const u8, description: []const u8) -> ?T {
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const type_id = typeToEnum(T);
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const available_option = AvailableOption {
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.name = name,
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.type_id = type_id,
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.description = description,
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};
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if (const _ ?= %%self.available_options_map.put(name, available_option)) {
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debug.panic("Option '{}' declared twice", name);
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}
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%%self.available_options_list.append(available_option);
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const entry = self.user_input_options.get(name) ?? return null;
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entry.value.used = true;
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switch (type_id) {
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TypeId.Bool => switch (entry.value.value) {
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UserValue.Flag => return true,
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UserValue.Scalar => |s| {
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if (mem.eql(u8, s, "true")) {
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return true;
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} else if (mem.eql(u8, s, "false")) {
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return false;
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} else {
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%%io.stderr.printf("Expected -D{} to be a boolean, but received '{}'\n", name, s);
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self.markInvalidUserInput();
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return null;
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}
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},
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UserValue.List => {
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%%io.stderr.printf("Expected -D{} to be a boolean, but received a list.\n", name);
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self.markInvalidUserInput();
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return null;
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},
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},
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TypeId.Int => debug.panic("TODO integer options to build script"),
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TypeId.Float => debug.panic("TODO float options to build script"),
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TypeId.String => debug.panic("TODO string options to build script"),
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TypeId.List => debug.panic("TODO list options to build script"),
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}
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}
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pub fn addUserInputOption(self: &Builder, name: []const u8, value: []const u8) -> bool {
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if (var prev_value ?= %%self.user_input_options.put(name, UserInputOption {
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.name = name,
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.value = UserValue.Scalar { value },
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.used = false,
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})) {
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switch (prev_value.value) {
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UserValue.Scalar => |s| {
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var list = List([]const u8).init(self.allocator);
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%%list.append(s);
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%%list.append(value);
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%%self.user_input_options.put(name, UserInputOption {
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.name = name,
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.value = UserValue.List { list },
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.used = false,
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});
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},
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UserValue.List => |*list| {
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%%list.append(value);
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%%self.user_input_options.put(name, UserInputOption {
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.name = name,
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.value = UserValue.List { *list },
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.used = false,
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});
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},
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UserValue.Flag => {
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%%io.stderr.printf("Option '-D{}={}' conflicts with flag '-D{}'.\n", name, value, name);
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return true;
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},
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}
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}
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return false;
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}
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pub fn addUserInputFlag(self: &Builder, name: []const u8) -> bool {
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if (const prev_value ?= %%self.user_input_options.put(name, UserInputOption {
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.name = name,
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.value = UserValue.Flag,
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.used = false,
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})) {
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switch (prev_value.value) {
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UserValue.Scalar => |s| {
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%%io.stderr.printf("Flag '-D{}' conflicts with option '-D{}={}'.\n", name, name, s);
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return true;
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},
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UserValue.List => {
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%%io.stderr.printf("Flag '-D{}' conflicts with multiple options of the same name.\n", name);
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return true;
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},
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UserValue.Flag => {},
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}
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}
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return false;
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}
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fn typeToEnum(comptime T: type) -> TypeId {
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if (@isInteger(T)) {
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TypeId.Int
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} else if (@isFloat(T)) {
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TypeId.Float
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} else switch (T) {
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bool => TypeId.Bool,
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[]const u8 => TypeId.String,
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[]const []const u8 => TypeId.List,
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else => @compileError("Unsupported type: " ++ @typeName(T)),
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}
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}
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fn markInvalidUserInput(self: &Builder) {
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self.invalid_user_input = true;
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}
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pub fn typeIdName(id: TypeId) -> []const u8 {
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return switch (id) {
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TypeId.Bool => "bool",
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TypeId.Int => "int",
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TypeId.Float => "float",
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TypeId.String => "string",
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TypeId.List => "list",
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};
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}
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pub fn validateUserInputDidItFail(self: &Builder) -> bool {
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// make sure all args are used
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var it = self.user_input_options.iterator();
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while (true) {
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const entry = it.next() ?? break;
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if (!entry.value.used) {
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%%io.stderr.printf("Invalid option: -D{}\n\n", entry.key);
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self.markInvalidUserInput();
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}
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}
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return self.invalid_user_input;
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}
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};
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const CrossTarget = struct {
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arch: Arch,
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os: Os,
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environ: Environ,
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};
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const Target = enum {
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Native,
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Cross: CrossTarget,
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};
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const LinkerScript = enum {
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None,
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Embed: []const u8,
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Path: []const u8,
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};
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const Exe = struct {
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root_src: []const u8,
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name: []const u8,
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target: Target,
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linker_script: LinkerScript,
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link_libs: BufSet,
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verbose: bool,
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release: bool,
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pub fn deinit(self: &Exe) {
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self.link_libs.deinit();
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}
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pub fn setTarget(self: &Exe, target_arch: Arch, target_os: Os, target_environ: Environ) {
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self.target = Target.Cross {
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CrossTarget {
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.arch = target_arch,
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.os = target_os,
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.environ = target_environ,
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}
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};
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}
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/// Exe keeps a reference to script for its lifetime or until this function
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/// is called again.
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pub fn setLinkerScriptContents(self: &Exe, script: []const u8) {
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self.linker_script = LinkerScript.Embed { script };
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}
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pub fn setLinkerScriptPath(self: &Exe, path: []const u8) {
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self.linker_script = LinkerScript.Path { path };
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}
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pub fn linkLibrary(self: &Exe, name: []const u8) {
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%%self.link_libs.put(name);
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}
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pub fn setVerbose(self: &Exe, value: bool) {
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self.verbose = value;
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}
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pub fn setRelease(self: &Exe, value: bool) {
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self.release = value;
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}
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};
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fn handleErr(err: error) -> noreturn {
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debug.panic("error: {}\n", @errorName(err));
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}
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fn printInvocation(exe_name: []const u8, args: &const List([]const u8)) {
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%%io.stderr.printf("{}", exe_name);
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for (args.toSliceConst()) |arg| {
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%%io.stderr.printf(" {}", arg);
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}
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%%io.stderr.printf("\n");
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}
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// TODO issue #299
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fn targetOsName(target_os: Os) -> []const u8 {
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return switch (target_os) {
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Os.freestanding => "freestanding",
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Os.cloudabi => "cloudabi",
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Os.darwin => "darwin",
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Os.dragonfly => "dragonfly",
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Os.freebsd => "freebsd",
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Os.ios => "ios",
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Os.kfreebsd => "kfreebsd",
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Os.linux => "linux",
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Os.lv2 => "lv2",
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Os.macosx => "macosx",
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Os.netbsd => "netbsd",
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Os.openbsd => "openbsd",
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Os.solaris => "solaris",
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Os.windows => "windows",
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Os.haiku => "haiku",
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Os.minix => "minix",
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Os.rtems => "rtems",
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Os.nacl => "nacl",
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Os.cnk => "cnk",
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Os.bitrig => "bitrig",
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Os.aix => "aix",
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Os.cuda => "cuda",
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Os.nvcl => "nvcl",
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Os.amdhsa => "amdhsa",
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Os.ps4 => "ps4",
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Os.elfiamcu => "elfiamcu",
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Os.tvos => "tvos",
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Os.watchos => "watchos",
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Os.mesa3d => "mesa3d",
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};
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}
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// TODO issue #299
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fn targetArchName(target_arch: Arch) -> []const u8 {
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return switch (target_arch) {
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Arch.armv8_2a => "armv8_2a",
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Arch.armv8_1a => "armv8_1a",
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Arch.armv8 => "armv8",
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Arch.armv8m_baseline => "armv8m_baseline",
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Arch.armv8m_mainline => "armv8m_mainline",
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Arch.armv7 => "armv7",
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Arch.armv7em => "armv7em",
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Arch.armv7m => "armv7m",
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Arch.armv7s => "armv7s",
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Arch.armv7k => "armv7k",
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Arch.armv6 => "armv6",
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Arch.armv6m => "armv6m",
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Arch.armv6k => "armv6k",
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Arch.armv6t2 => "armv6t2",
|
|
Arch.armv5 => "armv5",
|
|
Arch.armv5te => "armv5te",
|
|
Arch.armv4t => "armv4t",
|
|
Arch.armeb => "armeb",
|
|
Arch.aarch64 => "aarch64",
|
|
Arch.aarch64_be => "aarch64_be",
|
|
Arch.avr => "avr",
|
|
Arch.bpfel => "bpfel",
|
|
Arch.bpfeb => "bpfeb",
|
|
Arch.hexagon => "hexagon",
|
|
Arch.mips => "mips",
|
|
Arch.mipsel => "mipsel",
|
|
Arch.mips64 => "mips64",
|
|
Arch.mips64el => "mips64el",
|
|
Arch.msp430 => "msp430",
|
|
Arch.powerpc => "powerpc",
|
|
Arch.powerpc64 => "powerpc64",
|
|
Arch.powerpc64le => "powerpc64le",
|
|
Arch.r600 => "r600",
|
|
Arch.amdgcn => "amdgcn",
|
|
Arch.sparc => "sparc",
|
|
Arch.sparcv9 => "sparcv9",
|
|
Arch.sparcel => "sparcel",
|
|
Arch.s390x => "s390x",
|
|
Arch.tce => "tce",
|
|
Arch.thumb => "thumb",
|
|
Arch.thumbeb => "thumbeb",
|
|
Arch.i386 => "i386",
|
|
Arch.x86_64 => "x86_64",
|
|
Arch.xcore => "xcore",
|
|
Arch.nvptx => "nvptx",
|
|
Arch.nvptx64 => "nvptx64",
|
|
Arch.le32 => "le32",
|
|
Arch.le64 => "le64",
|
|
Arch.amdil => "amdil",
|
|
Arch.amdil64 => "amdil64",
|
|
Arch.hsail => "hsail",
|
|
Arch.hsail64 => "hsail64",
|
|
Arch.spir => "spir",
|
|
Arch.spir64 => "spir64",
|
|
Arch.kalimbav3 => "kalimbav3",
|
|
Arch.kalimbav4 => "kalimbav4",
|
|
Arch.kalimbav5 => "kalimbav5",
|
|
Arch.shave => "shave",
|
|
Arch.lanai => "lanai",
|
|
Arch.wasm32 => "wasm32",
|
|
Arch.wasm64 => "wasm64",
|
|
Arch.renderscript32 => "renderscript32",
|
|
Arch.renderscript64 => "renderscript64",
|
|
};
|
|
}
|
|
|
|
// TODO issue #299
|
|
fn targetEnvironName(target_environ: Environ) -> []const u8 {
|
|
return switch (target_environ) {
|
|
Environ.gnu => "gnu",
|
|
Environ.gnuabi64 => "gnuabi64",
|
|
Environ.gnueabi => "gnueabi",
|
|
Environ.gnueabihf => "gnueabihf",
|
|
Environ.gnux32 => "gnux32",
|
|
Environ.code16 => "code16",
|
|
Environ.eabi => "eabi",
|
|
Environ.eabihf => "eabihf",
|
|
Environ.android => "android",
|
|
Environ.musl => "musl",
|
|
Environ.musleabi => "musleabi",
|
|
Environ.musleabihf => "musleabihf",
|
|
Environ.msvc => "msvc",
|
|
Environ.itanium => "itanium",
|
|
Environ.cygnus => "cygnus",
|
|
Environ.amdopencl => "amdopencl",
|
|
Environ.coreclr => "coreclr",
|
|
};
|
|
}
|
|
|