73 lines
2.2 KiB
Rust
73 lines
2.2 KiB
Rust
#![no_std]
|
|
#![unstable(feature = "panic_unwind", issue = "32837")]
|
|
#![feature(link_cfg)]
|
|
#![feature(nll)]
|
|
#![feature(staged_api)]
|
|
#![feature(unwind_attributes)]
|
|
#![feature(static_nobundle)]
|
|
#![cfg_attr(not(target_env = "msvc"), feature(libc))]
|
|
|
|
cfg_if::cfg_if! {
|
|
if #[cfg(target_env = "msvc")] {
|
|
// Windows MSVC no extra unwinder support needed
|
|
} else if #[cfg(any(
|
|
target_os = "l4re",
|
|
target_os = "none",
|
|
))] {
|
|
// These "unix" family members do not have unwinder.
|
|
// Note this also matches x86_64-linux-kernel.
|
|
} else if #[cfg(any(
|
|
unix,
|
|
windows,
|
|
target_os = "psp",
|
|
all(target_vendor = "fortanix", target_env = "sgx"),
|
|
))] {
|
|
mod libunwind;
|
|
pub use libunwind::*;
|
|
} else {
|
|
// no unwinder on the system!
|
|
// - wasm32 (not emscripten, which is "unix" family)
|
|
// - os=none ("bare metal" targets)
|
|
// - os=hermit
|
|
// - os=uefi
|
|
// - os=cuda
|
|
// - nvptx64-nvidia-cuda
|
|
// - Any new targets not listed above.
|
|
}
|
|
}
|
|
|
|
#[cfg(target_env = "musl")]
|
|
#[link(name = "unwind", kind = "static", cfg(target_feature = "crt-static"))]
|
|
#[link(name = "gcc_s", cfg(not(target_feature = "crt-static")))]
|
|
extern "C" {}
|
|
|
|
// When building with crt-static, we get `gcc_eh` from the `libc` crate, since
|
|
// glibc needs it, and needs it listed later on the linker command line. We
|
|
// don't want to duplicate it here.
|
|
#[cfg(all(
|
|
target_os = "linux",
|
|
target_env = "gnu",
|
|
not(feature = "llvm-libunwind"),
|
|
not(feature = "system-llvm-libunwind")
|
|
))]
|
|
#[link(name = "gcc_s", cfg(not(target_feature = "crt-static")))]
|
|
extern "C" {}
|
|
|
|
#[cfg(all(
|
|
target_os = "linux",
|
|
target_env = "gnu",
|
|
not(feature = "llvm-libunwind"),
|
|
feature = "system-llvm-libunwind"
|
|
))]
|
|
#[link(name = "unwind", cfg(not(target_feature = "crt-static")))]
|
|
extern "C" {}
|
|
|
|
#[cfg(target_os = "redox")]
|
|
#[link(name = "gcc_eh", kind = "static-nobundle", cfg(target_feature = "crt-static"))]
|
|
#[link(name = "gcc_s", cfg(not(target_feature = "crt-static")))]
|
|
extern "C" {}
|
|
|
|
#[cfg(all(target_vendor = "fortanix", target_env = "sgx"))]
|
|
#[link(name = "unwind", kind = "static-nobundle")]
|
|
extern "C" {}
|