mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-27 06:43:19 +08:00
List the executable's optional runtime units and defines in one table each
compileCInternal built the program's command line from a chain of conditional spreads, one per optional runtime unit, and wrote the optional -D flags out twice (the program build and the runtime-object flags). RUNTIME_UNITS now lists the optional runtime inputs in link order, one entry per unit: the sources and the condition that selects them, or a small function for the entries that add vendor objects, include directories or platform libraries. RUNTIME_DEFINES lists the optional definitions once, and both flag lists use it. The command lines keep their order, so the executables do not change. The comment fragment before the process-events unit, left from a removed zlib entry, is dropped.
This commit is contained in:
Chris Tate
@@ -98,6 +98,218 @@ import { CacheInputsChangedError } from "./session.js";
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import { ensureRuntimeObjects, stageRuntimeObjects, clearCcCaches } from "./runtime-objects.js";
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import { localizeLibraryObjects } from "./object-merge.js";
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/** What the runtime-unit table reads: the build options, the target driver,
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* the units other options imply, and the vendor inputs resolved for this
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* build. */
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interface RuntimeUnitContext {
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opts: CcOptions;
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driver: ReturnType<typeof resolveCc>;
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rt: (path: string) => string;
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rtDir: string;
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regex: boolean;
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nativeFetch: boolean;
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net: boolean;
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http: boolean;
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tls: boolean;
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tlsCa: boolean;
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cipher: boolean;
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lreObjects: readonly string[];
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zlibObjects: readonly string[];
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tlsArchive: string | null;
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}
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/** An optional runtime input: runtime sources compiled when `when` holds,
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* or command-line arguments computed from the build. */
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interface RuntimeUnit {
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when: (u: RuntimeUnitContext) => boolean | undefined;
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sources: readonly string[];
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args?: (u: RuntimeUnitContext) => readonly string[];
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}
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const unit = (when: RuntimeUnit["when"], ...sources: string[]): RuntimeUnit => ({ when, sources });
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const unitArgs = (args: (u: RuntimeUnitContext) => readonly string[]): RuntimeUnit => ({
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when: () => true,
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sources: [],
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args,
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});
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/** The optional runtime inputs, in link order. The order is part of the
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* executable: a new unit goes next to the units it references. */
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const RUNTIME_UNITS: readonly RuntimeUnit[] = [
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unit(
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(u) => u.opts.workers,
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"scr_worker.c",
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"scr_worker_events.c",
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"scr_mailbox.c",
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"scr_message.c",
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),
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unit((u) => u.opts.copying, "scr_copying.c"),
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unit((u) => u.opts.fileHandle, "scr_file_handle.c"),
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// win32 targets compile the libc-shim TU (stpcpy, arc4random_buf,
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// gmtime_r, strcasestr — the _WIN32 block in scr_runtime.h declares
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// them) and link advapi32 (the CSPRNG RtlGenRandom/SystemFunction036,
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// GetUserNameA), iphlpapi (GetAdaptersAddresses behind
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// os.networkInterfaces), and ws2_32 (inet_ntop there; the socket
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// units ride the same import). Never present on the default path, so
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// the historical line cannot change.
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unitArgs((u) =>
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targetPlatform(u.driver) === "win32"
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? [u.rt(join(u.rtDir, "scr_win.c")), "-ladvapi32", "-liphlpapi", "-lws2_32"]
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: [],
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),
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// musl deliberately has no libc-identification predefine; resolveCc's
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// SCR_MUSL flag and this target-selected TU travel together.
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unit((u) => isMuslTarget(u.driver), "scr_musl.c"),
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// scr_glob.c (path.matchesGlob) compiles its segments through the
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// regex unit and scr_idna.c (node:url's IDNA) normalizes through it,
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// so both ride the same switch; section GC drops them from binaries
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// that never use them.
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unitArgs((u) =>
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u.regex
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? [
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"-I",
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vendorEngineDir(),
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u.rt(join(u.rtDir, "scr_regex.c")),
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u.rt(join(u.rtDir, "scr_glob.c")),
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u.rt(join(u.rtDir, "scr_idna.c")),
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...u.lreObjects,
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]
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: [],
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),
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unit((u) => u.opts.assert || u.regex || u.opts.symbol, "scr_assert.c"),
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unit((u) => u.opts.inspect, "scr_inspect.c", "scr_console_native.c"),
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unit((u) => u.opts.dynInvoke || u.opts.workers || u.nativeFetch, "scr_dyn_invoke.c"),
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unit((u) => u.opts.dc, "scr_dc.c"),
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unit((u) => u.opts.dynTier, "scr_js_value.c"),
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unit((u) => u.opts.eventTarget || u.nativeFetch, "scr_event_target.c"),
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unit(
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(u) =>
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u.opts.dynAsync ||
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u.opts.dynInvoke ||
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u.opts.workers ||
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u.opts.dc ||
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u.opts.fileHandle ||
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u.nativeFetch,
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"scr_async_dyn.c",
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),
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// The performance timeline (every perf_hooks user-timing call selects
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// dynAsync, whose unit carries the timeline's buffer warning).
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unit((u) => u.opts.dynAsync, "scr_perf.c"),
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// Blob and File (every blob.* call selects dynAsync, whose unit boxes
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// their reads as dyn promises).
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unit((u) => u.opts.dynAsync, "scr_blob.c"),
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// The zlib UNIT (scr_zlib.c) gates on zlib.* IR use; the LINK (system
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// libz on the default host-clang build, vendored objects on Zig builds)
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// also serves the native fetch's gzip decoder — spread exactly once.
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unitArgs((u) =>
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u.opts.zlib
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? isZigDriver(u.driver)
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? ["-I", vendorZlibDir(), u.rt(join(u.rtDir, "scr_zlib.c")), ...u.zlibObjects]
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: [u.rt(join(u.rtDir, "scr_zlib.c"))]
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: u.nativeFetch
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? isZigDriver(u.driver)
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? ["-I", vendorZlibDir(), ...u.zlibObjects]
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: []
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: [],
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),
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unit((u) => u.opts.events, "scr_events.c", "scr_readline.c"),
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// readline's terminal mode: rl.terminal sets the regex unit it
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// measures with.
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unit((u) => u.opts.events && u.regex, "scr_readline_tty.c"),
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unit((u) => u.opts.emitter || u.opts.workers, "scr_events_emitter.c"),
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// The checked-dynamic HANDLE support unit (listener gate + runtime
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// adapter closures): every referencing unit is one of the emitter or
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// net families (http implies net), so handle-free binaries keep
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// their exact size class.
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unit((u) => u.opts.emitter || u.opts.workers || u.net, "scr_dyn_handle.c"),
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unit((u) => u.opts.symbol, "scr_symbol.c"),
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unit((u) => u.opts.assert && u.opts.bigint, "scr_bigint_assert.c"),
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unit((u) => u.opts.qs, "scr_qs.c"),
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// The legacy url unit references the regex, querystring and dyn-async
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// units; the url.parse family's IR sets all three.
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unit((u) => u.regex && u.opts.qs && u.opts.dynAsync, "scr_url_legacy.c"),
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unit((u) => u.opts.parseArgs, "scr_util.c"),
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unit((u) => u.opts.parseArgs && u.opts.symbol, "scr_util_compare.c"),
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unit((u) => u.opts.parseArgs && u.opts.inspect && u.opts.dynAsync, "scr_util_style.c"),
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unit(
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(u) => u.opts.parseArgs && u.opts.inspect && u.opts.dynAsync && u.opts.dynInvoke && u.regex,
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"scr_util_callable.c",
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),
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unit((u) => u.opts.stream, "scr_stream.c", "scr_fs_stream.c"),
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// The zlib stream classes reference both the zlib engine and the
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// stream unit.
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unit((u) => u.opts.zlib && u.opts.stream, "scr_zlib_stream.c"),
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unit((u) => u.opts.stream && u.opts.dynAsync, "scr_stream_ops.c"),
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// FileHandle streams reference both the stream unit and FileHandle.
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unit((u) => u.opts.stream && u.opts.fileHandle, "scr_fs_stream_fh.c"),
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// The readiness-poller backends (scr_platform.h): kqueue on macOS/BSD,
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// epoll on Linux, WSAPoll on Windows — each TU is empty off its
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// platform, so all three link whenever a poller-using unit does and
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// the others cost nothing (ws2_32 rides the unconditional win32 libs
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// above).
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unit((u) => u.net || u.opts.dgram, "scr_loop_kqueue.c", "scr_loop_epoll.c", "scr_loop_wsapoll.c"),
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unit((u) => u.net, "scr_net.c"),
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unit((u) => u.http, "scr_http.c"),
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unit((u) => u.opts.http2, "scr_http2.c"),
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unit((u) => u.opts.dgram, "scr_dgram.c"),
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unit((u) => u.opts.watch, "scr_watch.c"),
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unit((u) => u.opts.foreignFfi, "scr_ffi_queue.c"),
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unit((u) => u.opts.nodeTest, "scr_test.c"),
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unit((u) => u.opts.webcrypto, "scr_webcrypto.c"),
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// The CA-store unit rides its own gate OR the tls one: scr_tls.c
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// references its default-set override unconditionally.
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unit((u) => u.tlsCa, "scr_tls_ca.c"),
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unitArgs((u) =>
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u.tlsArchive
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? [
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"-I",
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join(vendorTlsDir(), "include"),
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...(u.tls ? [u.rt(join(u.rtDir, "scr_tls.c"))] : []),
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...(u.cipher ? [u.rt(join(u.rtDir, "scr_cipher.c"))] : []),
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u.tlsArchive,
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// mbedTLS's win32 entropy poll is BCryptGenRandom (bcrypt.h).
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// The unconditional win32 libs above do not carry it.
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// Never present on the default path, so the historical TLS
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// link line cannot change.
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...(targetPlatform(u.driver) === "win32" ? ["-lbcrypt"] : []),
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]
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: [],
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),
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// scr_tls_ca.c enumerates and PEM-encodes Windows system-store entries.
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// This is independent of the mbedTLS archive: getCACertificates-only
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// programs need crypt32 too, while TLS programs imply the CA unit.
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unitArgs((u) => (u.tlsCa && targetPlatform(u.driver) === "win32" ? ["-lcrypt32"] : [])),
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// Fetch uses the native network, TLS, and HTTP runtime.
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unit((u) => u.nativeFetch, "scr_fetch.c"),
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];
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/** The arguments of the optional runtime inputs, in link order. */
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function runtimeUnitArgs(u: RuntimeUnitContext): string[] {
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return RUNTIME_UNITS.flatMap((entry) =>
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entry.args
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? [...entry.args(u)]
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: entry.when(u)
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? entry.sources.map((source) => u.rt(join(u.rtDir, source)))
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: [],
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);
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}
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/** The runtime's optional compile-time definitions, in command-line order.
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* Both the program build and the runtime-object flags use this list. */
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const RUNTIME_DEFINES: readonly {
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define: string;
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when: (opts: CcOptions) => boolean | undefined;
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}[] = [
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{ define: "SCR_TEXT_DECODER_LEGACY", when: (opts) => opts.textDecoderLegacy },
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{ define: "SCR_WARNING_REPLACE", when: (opts) => opts.warningReplace },
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{ define: "SCR_STDIO_EXTENDED", when: (opts) => opts.stdioExtended },
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{ define: "SCR_YIN", when: (opts) => opts.youngNursery },
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];
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function runtimeDefineArgs(opts: CcOptions): string[] {
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return RUNTIME_DEFINES.filter((d) => d.when(opts)).map((d) => `-D${d.define}`);
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}
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export async function compileCInternal(
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opts: CcOptions,
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cacheWarmOnly: boolean,
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@@ -444,10 +656,7 @@ export async function compileCInternal(
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? ["-O1", "-fsanitize=address", "-DSCR_RC_AUDIT"]
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: [optimization === "dev" ? "-O0" : "-O2"]),
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...executableSectionFlags.compile,
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...(opts.textDecoderLegacy ? ["-DSCR_TEXT_DECODER_LEGACY"] : []),
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...(opts.warningReplace ? ["-DSCR_WARNING_REPLACE"] : []),
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...(opts.stdioExtended ? ["-DSCR_STDIO_EXTENDED"] : []),
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...(opts.youngNursery ? ["-DSCR_YIN"] : []),
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...runtimeDefineArgs(opts),
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"-fno-math-errno",
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// The runtime object model uses type-punned C: a hierarchy
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// upcast is a raw pointer cast, so one object's header (rc, vt) and
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@@ -465,146 +674,22 @@ export async function compileCInternal(
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"-I",
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rtDir,
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...runtimeSources.map((f) => rt(join(rtDir, f))),
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...(opts.workers
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? ["scr_worker.c", "scr_worker_events.c", "scr_mailbox.c", "scr_message.c"].map((f) =>
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rt(join(rtDir, f)),
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)
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: []),
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...(opts.copying ? [rt(join(rtDir, "scr_copying.c"))] : []),
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...(opts.fileHandle ? [rt(join(rtDir, "scr_file_handle.c"))] : []),
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// win32 targets compile the libc-shim TU (stpcpy, arc4random_buf,
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// gmtime_r, strcasestr — the _WIN32 block in scr_runtime.h declares
|
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// them) and link advapi32 (the CSPRNG RtlGenRandom/SystemFunction036,
|
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// GetUserNameA), iphlpapi (GetAdaptersAddresses behind
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// os.networkInterfaces), and ws2_32 (inet_ntop there; the socket
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// units ride the same import). Never present on the default path, so
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// the historical line cannot change.
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...(targetPlatform(driver) === "win32"
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? [rt(join(rtDir, "scr_win.c")), "-ladvapi32", "-liphlpapi", "-lws2_32"]
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: []),
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// musl deliberately has no libc-identification predefine; resolveCc's
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// SCR_MUSL flag and this target-selected TU travel together.
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...(isMuslTarget(driver) ? [rt(join(rtDir, "scr_musl.c"))] : []),
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// scr_glob.c (path.matchesGlob) compiles its segments through the
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// regex unit and scr_idna.c (node:url's IDNA) normalizes through it,
|
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// so both ride the same switch; section GC drops them from binaries
|
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// that never use them.
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...(regex
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? [
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"-I",
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vendorEngineDir(),
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rt(join(rtDir, "scr_regex.c")),
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rt(join(rtDir, "scr_glob.c")),
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rt(join(rtDir, "scr_idna.c")),
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...lreObjects,
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]
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: []),
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...(opts.assert || regex || opts.symbol ? [rt(join(rtDir, "scr_assert.c"))] : []),
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...(opts.inspect
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? [rt(join(rtDir, "scr_inspect.c")), rt(join(rtDir, "scr_console_native.c"))]
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: []),
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...(opts.dynInvoke || opts.workers || nativeFetch ? [rt(join(rtDir, "scr_dyn_invoke.c"))] : []),
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...(opts.dc ? [rt(join(rtDir, "scr_dc.c"))] : []),
|
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...(opts.dynTier === true ? [rt(join(rtDir, "scr_js_value.c"))] : []),
|
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...(opts.eventTarget || nativeFetch ? [rt(join(rtDir, "scr_event_target.c"))] : []),
|
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...(opts.dynAsync || opts.dynInvoke || opts.workers || opts.dc || opts.fileHandle || nativeFetch
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? [rt(join(rtDir, "scr_async_dyn.c"))]
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: []),
|
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// The performance timeline (every perf_hooks user-timing call selects
|
||||
// dynAsync, whose unit carries the timeline's buffer warning).
|
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...(opts.dynAsync ? [rt(join(rtDir, "scr_perf.c"))] : []),
|
||||
// Blob and File (every blob.* call selects dynAsync, whose unit boxes
|
||||
// their reads as dyn promises).
|
||||
...(opts.dynAsync ? [rt(join(rtDir, "scr_blob.c"))] : []),
|
||||
// The zlib UNIT (scr_zlib.c) gates on zlib.* IR use; the LINK (system
|
||||
// libz on the default host-clang build, vendored objects on Zig builds)
|
||||
// also serves the native fetch's gzip decoder — spread exactly once.
|
||||
...(opts.zlib
|
||||
? isZigDriver(driver)
|
||||
? ["-I", vendorZlibDir(), rt(join(rtDir, "scr_zlib.c")), ...zlibObjects]
|
||||
: [rt(join(rtDir, "scr_zlib.c"))]
|
||||
: nativeFetch
|
||||
? isZigDriver(driver)
|
||||
? ["-I", vendorZlibDir(), ...zlibObjects]
|
||||
: []
|
||||
: []),
|
||||
|
||||
// through the native installation hooks — the emitted main calls its
|
||||
// installer exactly then.
|
||||
...(opts.events ? [rt(join(rtDir, "scr_events.c")), rt(join(rtDir, "scr_readline.c"))] : []),
|
||||
// readline's terminal mode: rl.terminal sets the regex unit it
|
||||
// measures with.
|
||||
...(opts.events && regex ? [rt(join(rtDir, "scr_readline_tty.c"))] : []),
|
||||
...(opts.emitter || opts.workers ? [rt(join(rtDir, "scr_events_emitter.c"))] : []),
|
||||
// The checked-dynamic HANDLE support unit (listener gate + runtime
|
||||
// adapter closures): every referencing unit is one of the emitter or
|
||||
// net families (http implies net), so handle-free binaries keep
|
||||
// their exact size class.
|
||||
...(opts.emitter || opts.workers || net ? [rt(join(rtDir, "scr_dyn_handle.c"))] : []),
|
||||
...(opts.symbol ? [rt(join(rtDir, "scr_symbol.c"))] : []),
|
||||
...(opts.assert && opts.bigint ? [rt(join(rtDir, "scr_bigint_assert.c"))] : []),
|
||||
...(opts.qs ? [rt(join(rtDir, "scr_qs.c"))] : []),
|
||||
// The legacy url unit references the regex, querystring and dyn-async
|
||||
// units; the url.parse family's IR sets all three.
|
||||
...(regex && opts.qs && opts.dynAsync ? [rt(join(rtDir, "scr_url_legacy.c"))] : []),
|
||||
...(opts.parseArgs ? [rt(join(rtDir, "scr_util.c"))] : []),
|
||||
...(opts.parseArgs && opts.symbol ? [rt(join(rtDir, "scr_util_compare.c"))] : []),
|
||||
...(opts.parseArgs && opts.inspect && opts.dynAsync
|
||||
? [rt(join(rtDir, "scr_util_style.c"))]
|
||||
: []),
|
||||
...(opts.parseArgs && opts.inspect && opts.dynAsync && opts.dynInvoke && regex
|
||||
? [rt(join(rtDir, "scr_util_callable.c"))]
|
||||
: []),
|
||||
...(opts.stream ? [rt(join(rtDir, "scr_stream.c")), rt(join(rtDir, "scr_fs_stream.c"))] : []),
|
||||
// The zlib stream classes reference both the zlib engine and the
|
||||
// stream unit.
|
||||
...(opts.zlib && opts.stream ? [rt(join(rtDir, "scr_zlib_stream.c"))] : []),
|
||||
...(opts.stream && opts.dynAsync ? [rt(join(rtDir, "scr_stream_ops.c"))] : []),
|
||||
// FileHandle streams reference both the stream unit and FileHandle.
|
||||
...(opts.stream && opts.fileHandle ? [rt(join(rtDir, "scr_fs_stream_fh.c"))] : []),
|
||||
// The readiness-poller backends (scr_platform.h): kqueue on macOS/BSD,
|
||||
// epoll on Linux, WSAPoll on Windows — each TU is empty off its
|
||||
// platform, so all three link whenever a poller-using unit does and
|
||||
// the others cost nothing (ws2_32 rides the unconditional win32 libs
|
||||
// above).
|
||||
...(net || opts.dgram
|
||||
? [
|
||||
rt(join(rtDir, "scr_loop_kqueue.c")),
|
||||
rt(join(rtDir, "scr_loop_epoll.c")),
|
||||
rt(join(rtDir, "scr_loop_wsapoll.c")),
|
||||
]
|
||||
: []),
|
||||
...(net ? [rt(join(rtDir, "scr_net.c"))] : []),
|
||||
...(http ? [rt(join(rtDir, "scr_http.c"))] : []),
|
||||
...((opts.http2 ?? false) ? [rt(join(rtDir, "scr_http2.c"))] : []),
|
||||
...(opts.dgram ? [rt(join(rtDir, "scr_dgram.c"))] : []),
|
||||
...(opts.watch ? [rt(join(rtDir, "scr_watch.c"))] : []),
|
||||
...(opts.foreignFfi ? [rt(join(rtDir, "scr_ffi_queue.c"))] : []),
|
||||
...(opts.nodeTest ? [rt(join(rtDir, "scr_test.c"))] : []),
|
||||
...(opts.webcrypto ? [rt(join(rtDir, "scr_webcrypto.c"))] : []),
|
||||
// The CA-store unit rides its own gate OR the tls one: scr_tls.c
|
||||
// references its default-set override unconditionally.
|
||||
...(tlsCa ? [rt(join(rtDir, "scr_tls_ca.c"))] : []),
|
||||
...(tlsArchive
|
||||
? [
|
||||
"-I",
|
||||
join(vendorTlsDir(), "include"),
|
||||
...(tls ? [rt(join(rtDir, "scr_tls.c"))] : []),
|
||||
...(cipher ? [rt(join(rtDir, "scr_cipher.c"))] : []),
|
||||
tlsArchive,
|
||||
// mbedTLS's win32 entropy poll is BCryptGenRandom (bcrypt.h).
|
||||
// The unconditional win32 libs above do not carry it.
|
||||
// Never present on the default path, so the historical TLS
|
||||
// link line cannot change.
|
||||
...(targetPlatform(driver) === "win32" ? ["-lbcrypt"] : []),
|
||||
]
|
||||
: []),
|
||||
// scr_tls_ca.c enumerates and PEM-encodes Windows system-store entries.
|
||||
// This is independent of the mbedTLS archive: getCACertificates-only
|
||||
// programs need crypt32 too, while TLS programs imply the CA unit.
|
||||
...(tlsCa && targetPlatform(driver) === "win32" ? ["-lcrypt32"] : []),
|
||||
// Fetch uses the native network, TLS, and HTTP runtime.
|
||||
...(nativeFetch ? [rt(join(rtDir, "scr_fetch.c"))] : []),
|
||||
...runtimeUnitArgs({
|
||||
opts,
|
||||
driver,
|
||||
rt,
|
||||
rtDir,
|
||||
regex,
|
||||
nativeFetch,
|
||||
net,
|
||||
http,
|
||||
tls,
|
||||
tlsCa,
|
||||
cipher,
|
||||
lreObjects,
|
||||
zlibObjects,
|
||||
tlsArchive,
|
||||
}),
|
||||
// A .ll program TU (the LLVM backend) deliberately carries no target
|
||||
// triple (byte-stable output; clang supplies the host/SCRIPTC_TARGET
|
||||
// triple exactly as it does for .c) — silence the -Woverride-module
|
||||
@@ -647,10 +732,7 @@ export async function compileCInternal(
|
||||
? ["-O1", "-fsanitize=address", "-DSCR_RC_AUDIT"]
|
||||
: [optimization === "dev" ? "-O0" : "-O2"]),
|
||||
...executableSectionFlags.compile,
|
||||
...(opts.textDecoderLegacy ? ["-DSCR_TEXT_DECODER_LEGACY"] : []),
|
||||
...(opts.warningReplace ? ["-DSCR_WARNING_REPLACE"] : []),
|
||||
...(opts.stdioExtended ? ["-DSCR_STDIO_EXTENDED"] : []),
|
||||
...(opts.youngNursery ? ["-DSCR_YIN"] : []),
|
||||
...runtimeDefineArgs(opts),
|
||||
"-fno-math-errno",
|
||||
"-fno-strict-aliasing", // the emitted object model type-puns — see buildArgs
|
||||
"-Wno-deprecated-declarations",
|
||||
|
||||
Reference in New Issue
Block a user