(&self)
| 341 | } |
| 342 | |
| 343 | fn _check_compatible_with_native_host(&self) -> Result<(), String> { |
| 344 | use target_lexicon::Triple; |
| 345 | |
| 346 | let host = Triple::host(); |
| 347 | let target = self.config().compiler_target(); |
| 348 | |
| 349 | let target_matches_host = || { |
| 350 | // If the host target and target triple match, then it's valid |
| 351 | // to run results of compilation on this host. |
| 352 | if host == target { |
| 353 | return true; |
| 354 | } |
| 355 | |
| 356 | // If there's a mismatch and the target is a compatible pulley |
| 357 | // target, then that's also ok to run. |
| 358 | if cfg!(feature = "pulley") |
| 359 | && target.is_pulley() |
| 360 | && target.pointer_width() == host.pointer_width() |
| 361 | && target.endianness() == host.endianness() |
| 362 | { |
| 363 | return true; |
| 364 | } |
| 365 | |
| 366 | // ... otherwise everything else is considered not a match. |
| 367 | false |
| 368 | }; |
| 369 | |
| 370 | if !target_matches_host() { |
| 371 | return Err(format!( |
| 372 | "target '{target}' specified in the configuration does not match the host" |
| 373 | )); |
| 374 | } |
| 375 | |
| 376 | #[cfg(any(feature = "cranelift", feature = "winch"))] |
| 377 | { |
| 378 | if let Some(compiler) = self.compiler() { |
| 379 | // Also double-check all compiler settings |
| 380 | for (key, value) in compiler.flags().iter() { |
| 381 | self.check_compatible_with_shared_flag(key, value)?; |
| 382 | } |
| 383 | for (key, value) in compiler.isa_flags().iter() { |
| 384 | self.check_compatible_with_isa_flag(key, value)?; |
| 385 | } |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | // Double-check that this configuration isn't requesting capabilities |
| 390 | // that this build of Wasmtime doesn't support. |
| 391 | if !cfg!(has_native_signals) && self.tunables().signals_based_traps { |
| 392 | return Err("signals-based-traps disabled at compile time -- cannot be enabled".into()); |
| 393 | } |
| 394 | if !cfg!(has_virtual_memory) && self.tunables().memory_init_cow { |
| 395 | return Err("virtual memory disabled at compile time -- cannot enable CoW".into()); |
| 396 | } |
| 397 | if !cfg!(target_has_atomic = "64") && self.tunables().epoch_interruption { |
| 398 | return Err("epochs currently require 64-bit atomics".into()); |
| 399 | } |
| 400 |
no test coverage detected