std/sys/pal/
mod.rs

1//! Platform-dependent platform abstraction.
2//!
3//! The `std::sys` module is the abstracted interface through which
4//! `std` talks to the underlying operating system. It has different
5//! implementations for different operating system families, today
6//! just Unix and Windows, and initial support for Redox.
7//!
8//! The centralization of platform-specific code in this module is
9//! enforced by the "platform abstraction layer" tidy script in
10//! `tools/tidy/src/pal.rs`.
11//!
12//! This module is closely related to the platform-independent system
13//! integration code in `std::sys_common`. See that module's
14//! documentation for details.
15//!
16//! In the future it would be desirable for the independent
17//! implementations of this module to be extracted to their own crates
18//! that `std` can link to, thus enabling their implementation
19//! out-of-tree via crate replacement. Though due to the complex
20//! inter-dependencies within `std` that will be a challenging goal to
21//! achieve.
22
23#![allow(missing_debug_implementations)]
24
25pub mod common;
26
27cfg_select! {
28    unix => {
29        mod unix;
30        pub use self::unix::*;
31    }
32    windows => {
33        mod windows;
34        pub use self::windows::*;
35    }
36    target_os = "solid_asp3" => {
37        mod solid;
38        pub use self::solid::*;
39    }
40    target_os = "hermit" => {
41        mod hermit;
42        pub use self::hermit::*;
43    }
44    target_os = "trusty" => {
45        mod trusty;
46        pub use self::trusty::*;
47    }
48    all(target_os = "wasi", target_env = "p2") => {
49        mod wasip2;
50        pub use self::wasip2::*;
51    }
52    target_os = "wasi" => {
53        mod wasi;
54        pub use self::wasi::*;
55    }
56    target_family = "wasm" => {
57        mod wasm;
58        pub use self::wasm::*;
59    }
60    target_os = "xous" => {
61        mod xous;
62        pub use self::xous::*;
63    }
64    target_os = "uefi" => {
65        mod uefi;
66        pub use self::uefi::*;
67    }
68    all(target_vendor = "fortanix", target_env = "sgx") => {
69        mod sgx;
70        pub use self::sgx::*;
71    }
72    target_os = "teeos" => {
73        mod teeos;
74        pub use self::teeos::*;
75    }
76    target_os = "zkvm" => {
77        mod zkvm;
78        pub use self::zkvm::*;
79    }
80    _ => {
81        mod unsupported;
82        pub use self::unsupported::*;
83    }
84}
85
86pub const FULL_BACKTRACE_DEFAULT: bool = cfg_select! {
87    // Fuchsia components default to full backtrace.
88    target_os = "fuchsia" => true,
89    _ => false,
90};
91
92#[cfg(not(target_os = "uefi"))]
93pub type RawOsError = i32;
std/sys/pal/mod.rs

std/sys/pal/
mod.rs
