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Support posix_spawn() for Linux glibc 2.24+.

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The relevant support was added in https://sourceware.org/bugzilla/show_bug.cgi?id=10354#c12
This commit is contained in:
Bryan Drewery
2018-03-02 13:02:38 -08:00
parent 5ba6b3a728
commit d740083fc8
1 changed files with 16 additions and 2 deletions
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18
src/libstd/sys/unix/process/process_unix.rs
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@@ -235,7 +235,8 @@ impl Command {
io::Error::last_os_error()
}
#[cfg(not(any(target_os = "macos", target_os = "freebsd")))]
#[cfg(not(any(target_os = "macos", target_os = "freebsd",
all(target_os = "linux", target_env = "gnu"))))]
fn posix_spawn(&mut self, _: &ChildPipes, _: Option<&CStringArray>)
-> io::Result<Option<Process>>
{
@@ -244,7 +245,8 @@ impl Command {
// Only support platforms for which posix_spawn() can return ENOENT
// directly.
#[cfg(any(target_os = "macos", target_os = "freebsd"))]
#[cfg(any(target_os = "macos", target_os = "freebsd",
all(target_os = "linux", target_env = "gnu")))]
fn posix_spawn(&mut self, stdio: &ChildPipes, envp: Option<&CStringArray>)
-> io::Result<Option<Process>>
{
@@ -258,6 +260,18 @@ impl Command {
return Ok(None)
}
// Only glibc 2.24+ posix_spawn() supports returning ENOENT directly.
#[cfg(all(target_os = "linux", target_env = "gnu"))]
{
if let Some(version) = sys::os::glibc_version() {
if version < (2, 24) {
return Ok(None)
}
} else {
return Ok(None)
}
}
let mut p = Process { pid: 0, status: None };
struct PosixSpawnFileActions(libc::posix_spawn_file_actions_t);