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Make linker backend more portable by adding /usr/sbin to PATH. #486

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Merged
bnaecker merged 1 commit into from
Nov 3, 2025
Merged

Make linker backend more portable by adding /usr/sbin to PATH. #486

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11 changes: 11 additions & 0 deletions usdt-impl/src/linker.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,7 @@ use quote::{format_ident, quote};
use std::{
collections::BTreeMap,
convert::TryFrom,
env,
io::Write,
process::{Command, Stdio},
};
Expand Down Expand Up @@ -315,7 +316,17 @@ fn contains_needle2<'a>(line: &'a str, needle: &str) -> Option<(&'a str, &'a str
}

fn build_header_from_provider(source: &str) -> Result<String, crate::Error> {
// Ensure that `/usr/sbin` is on the PATH, since that is the typical
// location for `dtrace`, but some build systems (such as Bazel) reset
// the environment variables.
let mut path = env::var_os("PATH").unwrap_or_default();
if !path.is_empty() {
path.push(":");
}
path.push("/usr/sbin");

let mut child = Command::new("dtrace")
.env("PATH", path)
.arg("-h")
.arg("-s")
.arg("/dev/stdin")
Expand Down