2 // Pull in jemalloc when enabled.
4 // Note that we're pulling in a static copy of jemalloc which means that to
5 // pull it in we need to actually reference its symbols for it to get
6 // linked. The two crates we link to here, std and rustc_driver, are both
7 // dynamic libraries. That means to pull in jemalloc we need to actually
8 // reference allocation symbols one way or another (as this file is the only
9 // object code in the rustc executable).
10 #[cfg(feature = "jemalloc-sys")]
12 use std::os::raw::{c_void, c_int};
15 static _F1: unsafe extern fn(usize, usize) -> *mut c_void =
18 static _F2: unsafe extern fn(*mut *mut c_void, usize, usize) -> c_int =
19 jemalloc_sys::posix_memalign;
21 static _F3: unsafe extern fn(usize, usize) -> *mut c_void =
22 jemalloc_sys::aligned_alloc;
24 static _F4: unsafe extern fn(usize) -> *mut c_void =
27 static _F5: unsafe extern fn(*mut c_void, usize) -> *mut c_void =
28 jemalloc_sys::realloc;
30 static _F6: unsafe extern fn(*mut c_void) =
34 rustc_driver::set_sigpipe_handler();