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Use env::current_exe for libbacktrace on macOS

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This commit is contained in:
John Colanduoni
2017-08-09 22:09:59 -07:00
committed by kennytm
parent e3de40e72f
commit 09f572b7dc
1 changed files with 7 additions and 20 deletions
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27
src/libstd/sys/unix/backtrace/mod.rs
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@@ -104,28 +104,15 @@ pub mod gnu {
#[cfg(any(target_os = "macos", target_os = "ios"))] #[cfg(any(target_os = "macos", target_os = "ios"))]
pub fn get_executable_filename() -> io::Result<(Vec<c_char>, fs::File)> { pub fn get_executable_filename() -> io::Result<(Vec<c_char>, fs::File)> {
use ptr; use env;
use slice;
use ffi::OsStr;
use os::unix::ffi::OsStrExt; use os::unix::ffi::OsStrExt;
use libc::c_int;
extern { let filename = env::current_exe()?;
fn _NSGetExecutablePath(buf: *mut c_char, let file = fs::File::open(&filename)?;
bufsize: *mut u32) -> c_int; let mut filename_cstr: Vec<_> = filename.as_os_str().as_bytes().iter()
} .map(|&x| x as c_char).collect();
unsafe { filename_cstr.push(0); // Null terminate
let mut bufsize: u32 = 0; Ok((filename_cstr, file))
_NSGetExecutablePath(ptr::null_mut(), &mut bufsize);
if bufsize == 0 { return Err(io::Error::last_os_error()); }
let mut buffer: Vec<c_char> = Vec::with_capacity(bufsize as usize);
let ret = _NSGetExecutablePath(buffer.as_mut_ptr(), &mut bufsize);
if ret != 0 { return Err(io::Error::last_os_error()); }
buffer.set_len(bufsize as usize);
let file = fs::File::open(OsStr::from_bytes(
slice::from_raw_parts(buffer.as_ptr() as *const u8, buffer.len()-1)))?;
Ok((buffer, file))
}
} }
} }