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Fix RSS reporting on macOS #98384

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Merged
merged 1 commit into from
Jun 28, 2022
Merged

Fix RSS reporting on macOS #98384

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18 changes: 18 additions & 0 deletions compiler/rustc_data_structures/src/profiling.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -826,6 +826,24 @@ cfg_if! {
}
}
}
} else if #[cfg(target_os = "macos")] {
pub fn get_resident_set_size() -> Option<usize> {
use libc::{c_int, c_void, getpid, proc_pidinfo, proc_taskinfo, PROC_PIDTASKINFO};
use std::mem;
const PROC_TASKINFO_SIZE: c_int = mem::size_of::<proc_taskinfo>() as c_int;

unsafe {
let mut info: proc_taskinfo = mem::zeroed();
let info_ptr = &mut info as *mut proc_taskinfo as *mut c_void;
let pid = getpid() as c_int;
let ret = proc_pidinfo(pid, PROC_PIDTASKINFO, 0, info_ptr, PROC_TASKINFO_SIZE);
if ret == PROC_TASKINFO_SIZE {
Some(info.pti_resident_size as usize)
} else {
None
}
}
}
} else if #[cfg(unix)] {
pub fn get_resident_set_size() -> Option<usize> {
let field = 1;
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