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use crate::common::Config;
use std::env;
use std::ffi::OsStr;
use std::path::PathBuf;
use std::process::Command;
use tracing::*;
#[cfg(test)]
mod tests;
pub const ASAN_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-apple-darwin",
"aarch64-apple-ios",
"aarch64-apple-ios-sim",
"aarch64-unknown-fuchsia",
"aarch64-linux-android",
"aarch64-unknown-linux-gnu",
"arm-linux-androideabi",
"armv7-linux-androideabi",
"i686-linux-android",
"i686-unknown-linux-gnu",
"x86_64-apple-darwin",
"x86_64-apple-ios",
"x86_64-unknown-fuchsia",
"x86_64-linux-android",
"x86_64-unknown-freebsd",
"x86_64-unknown-linux-gnu",
"s390x-unknown-linux-gnu",
];
// FIXME(rcvalle): More targets are likely supported.
pub const CFI_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-apple-darwin",
"aarch64-unknown-fuchsia",
"aarch64-linux-android",
"aarch64-unknown-freebsd",
"aarch64-unknown-linux-gnu",
"x86_64-apple-darwin",
"x86_64-unknown-fuchsia",
"x86_64-pc-solaris",
"x86_64-unknown-freebsd",
"x86_64-unknown-illumos",
"x86_64-unknown-linux-gnu",
"x86_64-unknown-linux-musl",
"x86_64-unknown-netbsd",
];
pub const KCFI_SUPPORTED_TARGETS: &[&str] = &["aarch64-linux-none", "x86_64-linux-none"];
pub const KASAN_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-unknown-none",
"riscv64gc-unknown-none-elf",
"riscv64imac-unknown-none-elf",
"x86_64-unknown-none",
];
pub const LSAN_SUPPORTED_TARGETS: &[&str] = &[
// FIXME: currently broken, see #88132
// "aarch64-apple-darwin",
"aarch64-unknown-linux-gnu",
"x86_64-apple-darwin",
"x86_64-unknown-linux-gnu",
"s390x-unknown-linux-gnu",
];
pub const MSAN_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-unknown-linux-gnu",
"x86_64-unknown-freebsd",
"x86_64-unknown-linux-gnu",
"s390x-unknown-linux-gnu",
];
pub const TSAN_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-apple-darwin",
"aarch64-apple-ios",
"aarch64-apple-ios-sim",
"aarch64-unknown-linux-gnu",
"x86_64-apple-darwin",
"x86_64-apple-ios",
"x86_64-unknown-freebsd",
"x86_64-unknown-linux-gnu",
"s390x-unknown-linux-gnu",
];
pub const HWASAN_SUPPORTED_TARGETS: &[&str] =
&["aarch64-linux-android", "aarch64-unknown-linux-gnu"];
pub const MEMTAG_SUPPORTED_TARGETS: &[&str] =
&["aarch64-linux-android", "aarch64-unknown-linux-gnu"];
pub const SHADOWCALLSTACK_SUPPORTED_TARGETS: &[&str] = &["aarch64-linux-android"];
pub const XRAY_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-linux-android",
"aarch64-unknown-linux-gnu",
"aarch64-unknown-linux-musl",
"x86_64-linux-android",
"x86_64-unknown-freebsd",
"x86_64-unknown-linux-gnu",
"x86_64-unknown-linux-musl",
"x86_64-unknown-netbsd",
"x86_64-unknown-none-linuxkernel",
"x86_64-unknown-openbsd",
];
pub fn make_new_path(path: &str) -> String {
assert!(cfg!(windows));
// Windows just uses PATH as the library search path, so we have to
// maintain the current value while adding our own
match env::var(lib_path_env_var()) {
Ok(curr) => format!("{}{}{}", path, path_div(), curr),
Err(..) => path.to_owned(),
}
}
pub fn lib_path_env_var() -> &'static str {
"PATH"
}
fn path_div() -> &'static str {
";"
}
pub fn logv(config: &Config, s: String) {
debug!("{}", s);
if config.verbose {
println!("{}", s);
}
}
pub trait PathBufExt {
/// Append an extension to the path, even if it already has one.
fn with_extra_extension<S: AsRef<OsStr>>(&self, extension: S) -> PathBuf;
}
impl PathBufExt for PathBuf {
fn with_extra_extension<S: AsRef<OsStr>>(&self, extension: S) -> PathBuf {
if extension.as_ref().is_empty() {
self.clone()
} else {
let mut fname = self.file_name().unwrap().to_os_string();
if !extension.as_ref().to_str().unwrap().starts_with('.') {
fname.push(".");
}
fname.push(extension);
self.with_file_name(fname)
}
}
}
/// The name of the environment variable that holds dynamic library locations.
pub fn dylib_env_var() -> &'static str {
if cfg!(windows) {
"PATH"
} else if cfg!(target_os = "macos") {
"DYLD_LIBRARY_PATH"
} else if cfg!(target_os = "haiku") {
"LIBRARY_PATH"
} else {
"LD_LIBRARY_PATH"
}
}
/// Adds a list of lookup paths to `cmd`'s dynamic library lookup path.
/// If the dylib_path_var is already set for this cmd, the old value will be overwritten!
pub fn add_dylib_path(cmd: &mut Command, paths: impl Iterator<Item = impl Into<PathBuf>>) {
let path_env = env::var_os(dylib_env_var());
let old_paths = path_env.as_ref().map(env::split_paths);
let new_paths = paths.map(Into::into).chain(old_paths.into_iter().flatten());
cmd.env(dylib_env_var(), env::join_paths(new_paths).unwrap());
}
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