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use crate::common::Config;
use std::env;
use std::ffi::OsStr;
use std::path::PathBuf;
use tracing::*;
#[cfg(test)]
mod tests;
/// Conversion table from triple OS name to Rust SYSNAME
const OS_TABLE: &[(&str, &str)] = &[
("android", "android"),
("androideabi", "android"),
("cuda", "cuda"),
("darwin", "macos"),
("dragonfly", "dragonfly"),
("emscripten", "emscripten"),
("freebsd", "freebsd"),
("fuchsia", "fuchsia"),
("haiku", "haiku"),
("hermit", "hermit"),
("illumos", "illumos"),
("ios", "ios"),
("l4re", "l4re"),
("linux", "linux"),
("mingw32", "windows"),
("none", "none"),
("netbsd", "netbsd"),
("openbsd", "openbsd"),
("redox", "redox"),
("sgx", "sgx"),
("solaris", "solaris"),
("watchos", "watchos"),
("win32", "windows"),
("windows", "windows"),
("vxworks", "vxworks"),
];
const ARCH_TABLE: &[(&str, &str)] = &[
("aarch64", "aarch64"),
("aarch64_be", "aarch64"),
("amd64", "x86_64"),
("arm", "arm"),
("arm64", "aarch64"),
("armv4t", "arm"),
("armv5te", "arm"),
("armv7", "arm"),
("armv7s", "arm"),
("asmjs", "asmjs"),
("avr", "avr"),
("bpfeb", "bpf"),
("bpfel", "bpf"),
("hexagon", "hexagon"),
("i386", "x86"),
("i586", "x86"),
("i686", "x86"),
("m68k", "m68k"),
("mips", "mips"),
("mips64", "mips64"),
("mips64el", "mips64"),
("mipsisa32r6", "mips"),
("mipsisa32r6el", "mips"),
("mipsisa64r6", "mips64"),
("mipsisa64r6el", "mips64"),
("mipsel", "mips"),
("mipsisa32r6", "mips"),
("mipsisa32r6el", "mips"),
("mipsisa64r6", "mips64"),
("mipsisa64r6el", "mips64"),
("msp430", "msp430"),
("nvptx64", "nvptx64"),
("powerpc", "powerpc"),
("powerpc64", "powerpc64"),
("powerpc64le", "powerpc64"),
("riscv64gc", "riscv64"),
("s390x", "s390x"),
("sparc", "sparc"),
("sparc64", "sparc64"),
("sparcv9", "sparc64"),
("thumbv6m", "thumb"),
("thumbv7em", "thumb"),
("thumbv7m", "thumb"),
("wasm32", "wasm32"),
("x86_64", "x86_64"),
("xcore", "xcore"),
];
pub const ASAN_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-apple-darwin",
"aarch64-fuchsia",
"aarch64-unknown-linux-gnu",
"x86_64-apple-darwin",
"x86_64-fuchsia",
"x86_64-unknown-freebsd",
"x86_64-unknown-linux-gnu",
];
// FIXME(rcvalle): More targets are likely supported.
pub const CFI_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-apple-darwin",
"aarch64-fuchsia",
"aarch64-linux-android",
"aarch64-unknown-freebsd",
"aarch64-unknown-linux-gnu",
"x86_64-apple-darwin",
"x86_64-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 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",
];
pub const MSAN_SUPPORTED_TARGETS: &[&str] =
&["aarch64-unknown-linux-gnu", "x86_64-unknown-freebsd", "x86_64-unknown-linux-gnu"];
pub const TSAN_SUPPORTED_TARGETS: &[&str] = &[
"aarch64-apple-darwin",
"aarch64-unknown-linux-gnu",
"x86_64-apple-darwin",
"x86_64-unknown-freebsd",
"x86_64-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"];
const BIG_ENDIAN: &[&str] = &[
"aarch64_be",
"armebv7r",
"mips",
"mips64",
"mipsisa32r6",
"mipsisa64r6",
"powerpc",
"powerpc64",
"s390x",
"sparc",
"sparc64",
"sparcv9",
];
static ASM_SUPPORTED_ARCHS: &[&str] = &[
"x86", "x86_64", "arm", "aarch64", "riscv32",
"riscv64",
// These targets require an additional asm_experimental_arch feature.
// "nvptx64", "hexagon", "mips", "mips64", "spirv", "wasm32",
];
pub fn has_asm_support(triple: &str) -> bool {
ASM_SUPPORTED_ARCHS.contains(&get_arch(triple))
}
pub fn matches_os(triple: &str, name: &str) -> bool {
// For the wasm32 bare target we ignore anything also ignored on emscripten
// and then we also recognize `wasm32-bare` as the os for the target
if triple == "wasm32-unknown-unknown" {
return name == "emscripten" || name == "wasm32-bare";
}
let triple: Vec<_> = triple.split('-').collect();
for &(triple_os, os) in OS_TABLE {
if triple.contains(&triple_os) {
return os == name;
}
}
panic!("Cannot determine OS from triple");
}
/// Determine the architecture from `triple`
pub fn get_arch(triple: &str) -> &'static str {
let triple: Vec<_> = triple.split('-').collect();
for &(triple_arch, arch) in ARCH_TABLE {
if triple.contains(&triple_arch) {
return arch;
}
}
panic!("Cannot determine Architecture from triple");
}
/// Determine the endianness from `triple`
pub fn is_big_endian(triple: &str) -> bool {
let triple_arch = triple.split('-').next().unwrap();
BIG_ENDIAN.contains(&triple_arch)
}
pub fn matches_env(triple: &str, name: &str) -> bool {
if let Some(env) = triple.split('-').nth(3) { env.starts_with(name) } else { false }
}
pub fn get_pointer_width(triple: &str) -> &'static str {
if (triple.contains("64") && !triple.ends_with("gnux32") && !triple.ends_with("gnu_ilp32"))
|| triple.starts_with("s390x")
{
"64bit"
} else if triple.starts_with("avr") {
"16bit"
} else {
"32bit"
}
}
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)
}
}
}
|
