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Use the native unwind function in miri where possible

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This commit is contained in:
bjorn3 2024-07-01 18:02:40 +00:00
parent 221e2741c3
commit 45b0f68e34
1 changed files with 13 additions and 21 deletions
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34
library/panic_unwind/src/lib.rs
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@ -36,18 +36,14 @@
cfg_if::cfg_if! {
if #[cfg(target_os = "emscripten")] {
#[path = "emcc.rs"]
mod real_imp;
mod imp;
} else if #[cfg(target_os = "hermit")] {
#[path = "hermit.rs"]
mod real_imp;
mod imp;
} else if #[cfg(target_os = "l4re")] {
// L4Re is unix family but does not yet support unwinding.
#[path = "dummy.rs"]
mod real_imp;
} else if #[cfg(all(target_env = "msvc", not(target_arch = "arm")))] {
// LLVM does not support unwinding on 32 bit ARM msvc (thumbv7a-pc-windows-msvc)
#[path = "seh.rs"]
mod real_imp;
mod imp;
} else if #[cfg(any(
all(target_family = "windows", target_env = "gnu"),
target_os = "psp",
@ -58,7 +54,16 @@
target_family = "wasm",
))] {
#[path = "gcc.rs"]
mod real_imp;
mod imp;
} else if #[cfg(miri)] {
// Use the Miri runtime on Windows as miri doesn't support funclet based unwinding,
// only landingpad based unwinding. Also use the Miri runtime on unsupported platforms.
#[path = "miri.rs"]
mod imp;
} else if #[cfg(all(target_env = "msvc", not(target_arch = "arm")))] {
// LLVM does not support unwinding on 32 bit ARM msvc (thumbv7a-pc-windows-msvc)
#[path = "seh.rs"]
mod imp;
} else {
// Targets that don't support unwinding.
// - os=none ("bare metal" targets)
@ -67,20 +72,7 @@
// - nvptx64-nvidia-cuda
// - arch=avr
#[path = "dummy.rs"]
mod real_imp;
}
}
cfg_if::cfg_if! {
if #[cfg(miri)] {
// Use the Miri runtime.
// We still need to also load the normal runtime above, as rustc expects certain lang
// items from there to be defined.
#[path = "miri.rs"]
mod imp;
} else {
// Use the real runtime.
use real_imp as imp;
}
}