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#![crate_name = "alloc_jemalloc"]
#![crate_type = "rlib"]
#![no_std]
#![allocator]
#![unstable(feature = "alloc_jemalloc",
reason = "this library is unlikely to be stabilized in its current \
form or name",
issue = "27783")]
#![cfg_attr(not(stage0), deny(warnings))]
#![feature(allocator)]
#![feature(libc)]
#![feature(staged_api)]
extern crate libc;
use libc::{c_int, c_void, size_t};
#[link(name = "jemalloc", kind = "static")]
#[cfg_attr(target_os = "android", link(name = "gcc"))]
#[cfg_attr(all(not(windows),
not(target_os = "android"),
not(target_env = "musl")),
link(name = "pthread"))]
#[cfg(not(cargobuild))]
extern "C" {}
extern "C" {
#[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
target_os = "dragonfly", target_os = "windows"),
link_name = "je_mallocx")]
fn mallocx(size: size_t, flags: c_int) -> *mut c_void;
#[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
target_os = "dragonfly", target_os = "windows"),
link_name = "je_rallocx")]
fn rallocx(ptr: *mut c_void, size: size_t, flags: c_int) -> *mut c_void;
#[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
target_os = "dragonfly", target_os = "windows"),
link_name = "je_xallocx")]
fn xallocx(ptr: *mut c_void, size: size_t, extra: size_t, flags: c_int) -> size_t;
#[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
target_os = "dragonfly", target_os = "windows"),
link_name = "je_sdallocx")]
fn sdallocx(ptr: *mut c_void, size: size_t, flags: c_int);
#[cfg_attr(any(target_os = "macos", target_os = "android", target_os = "ios",
target_os = "dragonfly", target_os = "windows"),
link_name = "je_nallocx")]
fn nallocx(size: size_t, flags: c_int) -> size_t;
}
#[cfg(all(any(target_arch = "arm",
target_arch = "mips",
target_arch = "powerpc")))]
const MIN_ALIGN: usize = 8;
#[cfg(all(any(target_arch = "x86",
target_arch = "x86_64",
target_arch = "aarch64",
target_arch = "powerpc64")))]
const MIN_ALIGN: usize = 16;
fn mallocx_align(a: usize) -> c_int {
a.trailing_zeros() as c_int
}
fn align_to_flags(align: usize) -> c_int {
if align <= MIN_ALIGN {
0
} else {
mallocx_align(align)
}
}
#[no_mangle]
pub extern "C" fn __rust_allocate(size: usize, align: usize) -> *mut u8 {
let flags = align_to_flags(align);
unsafe { mallocx(size as size_t, flags) as *mut u8 }
}
#[no_mangle]
pub extern "C" fn __rust_reallocate(ptr: *mut u8,
_old_size: usize,
size: usize,
align: usize)
-> *mut u8 {
let flags = align_to_flags(align);
unsafe { rallocx(ptr as *mut c_void, size as size_t, flags) as *mut u8 }
}
#[no_mangle]
pub extern "C" fn __rust_reallocate_inplace(ptr: *mut u8,
_old_size: usize,
size: usize,
align: usize)
-> usize {
let flags = align_to_flags(align);
unsafe { xallocx(ptr as *mut c_void, size as size_t, 0, flags) as usize }
}
#[no_mangle]
pub extern "C" fn __rust_deallocate(ptr: *mut u8, old_size: usize, align: usize) {
let flags = align_to_flags(align);
unsafe { sdallocx(ptr as *mut c_void, old_size as size_t, flags) }
}
#[no_mangle]
pub extern "C" fn __rust_usable_size(size: usize, align: usize) -> usize {
let flags = align_to_flags(align);
unsafe { nallocx(size as size_t, flags) as usize }
}
#[no_mangle]
#[cfg(target_os = "android")]
pub extern "C" fn pthread_atfork(_prefork: *mut u8,
_postfork_parent: *mut u8,
_postfork_child: *mut u8)
-> i32 {
0
}