b22a714840
The JIT that runs makepad apps from source: lexer, front end, type checker, lazy borrow checker (Gandalf; `--check-first` opts in), codegen, session and warm/cold caches keyed by compiler stamp, provided crates bound late, startup images, live patching. User-facing name is `makepad run` (binary `makepad`, MAKEPAD_RUN_* env, ~/.makepad-run); libs/relax stays the internal library name. `makepad check` reports rustc-style diagnostics with rustc error codes and checks a whole workspace (`--workspace`). Runs on macOS, Linux, Windows and Android. makepad-remote: one tool schema for apps and the WM (app/1): grabs, captures, traces, frame profiles and tweaks. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
23 lines
773 B
Rust
23 lines
773 B
Rust
// CommandExt::exec replaces the process (here a forked child): its exit status is the new
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// program's; a failed exec returns the error. "| " lines must equal real std's.
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use std::os::unix::process::CommandExt;
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use std::process::Command;
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extern "C" {
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fn fork() -> i32;
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fn waitpid(pid: i32, status: *mut i32, options: i32) -> i32;
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fn _exit(code: i32) -> !;
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}
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#[test]
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fn a01_exec() {
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let pid = unsafe { fork() };
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if pid == 0 {
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let _ = Command::new("sh").args(["-c", "exit $X"]).env("X", "7").exec();
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unsafe { _exit(99) };
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}
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let mut st = 0;
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unsafe { waitpid(pid, &mut st, 0) };
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println!("| exec exit {}", (st >> 8) & 0xff);
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let e = Command::new("/nonexistent/prog").exec();
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println!("| missing {:?}", e.kind());
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}
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