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os current_exe using same approach as linux to get always the full absolute path

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but in case of failure (e.g. prcfs not mounted) still using
getexecname.
This commit is contained in:
David Carlier 2021-07-30 17:28:44 +01:00
parent b289bb7fdf
commit cb4519e59c
1 changed files with 17 additions and 13 deletions
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4
library/std/src/sys/unix/os.rs
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@ -368,6 +368,9 @@ pub fn current_exe() -> io::Result<PathBuf> {
#[cfg(any(target_os = "solaris", target_os = "illumos"))] #[cfg(any(target_os = "solaris", target_os = "illumos"))]
pub fn current_exe() -> io::Result<PathBuf> { pub fn current_exe() -> io::Result<PathBuf> {
if let Ok(path) = crate::fs::read_link("/proc/self/path/a.out") {
Ok(path)
} else {
extern "C" { extern "C" {
fn getexecname() -> *const c_char; fn getexecname() -> *const c_char;
} }
@ -384,6 +387,7 @@ pub fn current_exe() -> io::Result<PathBuf> {
if filename[0] == b'/' { Ok(path) } else { getcwd().map(|cwd| cwd.join(path)) } if filename[0] == b'/' { Ok(path) } else { getcwd().map(|cwd| cwd.join(path)) }
} }
} }
}
} }
#[cfg(target_os = "haiku")] #[cfg(target_os = "haiku")]