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//! Platform-dependent platform abstraction.
//!
//! The `std::sys` module is the abstracted interface through which
//! `std` talks to the underlying operating system. It has different
//! implementations for different operating system families, today
//! just Unix and Windows, and initial support for Redox.
//!
//! The centralization of platform-specific code in this module is
//! enforced by the "platform abstraction layer" tidy script in
//! `tools/tidy/src/pal.rs`.
//!
//! This module is closely related to the platform-independent system
//! integration code in `std::sys_common`. See that module's
//! documentation for details.
//!
//! In the future it would be desirable for the independent
//! implementations of this module to be extracted to their own crates
//! that `std` can link to, thus enabling their implementation
//! out-of-tree via crate replacement. Though due to the complex
//! inter-dependencies within `std` that will be a challenging goal to
//! achieve.
#![allow(missing_debug_implementations)]
pub mod common;
cfg_if::cfg_if! {
if #[cfg(unix)] {
mod unix;
pub use self::unix::*;
} else if #[cfg(windows)] {
mod windows;
pub use self::windows::*;
} else if #[cfg(target_os = "solid_asp3")] {
mod solid;
pub use self::solid::*;
} else if #[cfg(target_os = "hermit")] {
mod hermit;
pub use self::hermit::*;
} else if #[cfg(target_os = "wasi")] {
mod wasi;
pub use self::wasi::*;
} else if #[cfg(target_family = "wasm")] {
mod wasm;
pub use self::wasm::*;
} else if #[cfg(all(target_vendor = "fortanix", target_env = "sgx"))] {
mod sgx;
pub use self::sgx::*;
} else {
mod unsupported;
pub use self::unsupported::*;
}
}
cfg_if::cfg_if! {
// Fuchsia components default to full backtrace.
if #[cfg(target_os = "fuchsia")] {
pub const FULL_BACKTRACE_DEFAULT: bool = true;
} else {
pub const FULL_BACKTRACE_DEFAULT: bool = false;
}
}
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