src/libstd/sys_common/util.rs

   1 use crate::fmt;
   2 use crate::io::prelude::*;
   3 use crate::sys::stdio::panic_output;
   4 use crate::thread;
   5
   6 pub fn dumb_print(args: fmt::Arguments<'_>) {
   7     if let Some(mut out) = panic_output() {
   8         let _ = out.write_fmt(args);
   9     }
  10 }
  11
  12 // Other platforms should use the appropriate platform-specific mechanism for
  13 // aborting the process.  If no platform-specific mechanism is available,
  14 // crate::intrinsics::abort() may be used instead.  The above implementations cover
  15 // all targets currently supported by libstd.
  16
  17 pub fn abort(args: fmt::Arguments<'_>) -> ! {
  18     dumb_print(format_args!("fatal runtime error: {}\n", args));
  19     unsafe {
  20         crate::sys::abort_internal();
  21     }
  22 }
  23
  24 #[allow(dead_code)] // stack overflow detection not enabled on all platforms
  25 pub unsafe fn report_overflow() {
  26     dumb_print(format_args!(
  27         "\nthread '{}' has overflowed its stack\n",
  28         thread::current().name().unwrap_or("<unknown>")
  29     ));
  30 }