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Optimize: Avoid spawning ldd if built with Glibc

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Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
This commit is contained in:
Jiahao XU 2022-08-04 17:35:24 +10:00
parent 888627ce87
commit 7997c73cb2
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GPG key ID: 591C0B03040416D6
1 changed files with 22 additions and 4 deletions
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26
src/target.rs
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@ -133,7 +133,20 @@ mod linux {
use super::{Command, Output, TARGET};
pub(super) async fn detect_targets_linux() -> Vec<String> {
let abi = parse_abi();
let (abi, libc) = parse_abi_and_libc();
match libc {
// Glibc can only be dynamically linked.
// If we can run this binary, then it means that the target
// supports both glibc and musl.
Libc::Glibc => {
return vec![
create_target_str("gnu", abi),
create_target_str("musl", abi),
]
}
_ => (),
}
if let Ok(Output {
status: _,
@ -173,13 +186,18 @@ mod linux {
}
}
fn parse_abi() -> &'static str {
enum Libc {
Glibc,
Musl,
}
fn parse_abi_and_libc() -> (&'static str, Libc) {
let last = TARGET.rsplit_once('-').unwrap().1;
if let Some(libc_version) = last.strip_prefix("musl") {
libc_version
(libc_version, Libc::Musl)
} else if let Some(libc_version) = last.strip_prefix("gnu") {
libc_version
(libc_version, Libc::Glibc)
} else {
panic!("Unrecognized libc")
}