#[cfg(not(cargobuild))]
extern {}
+// Note that the symbols here are prefixed by default on OSX (we don't
+// explicitly request it), and on Android we explicitly request it as
+// unprefixing cause segfaults (mismatches in allocators).
extern {
- fn je_mallocx(size: size_t, flags: c_int) -> *mut c_void;
- fn je_rallocx(ptr: *mut c_void, size: size_t, flags: c_int) -> *mut c_void;
- fn je_xallocx(ptr: *mut c_void, size: size_t, extra: size_t, flags: c_int) -> size_t;
- fn je_sdallocx(ptr: *mut c_void, size: size_t, flags: c_int);
- fn je_nallocx(size: size_t, flags: c_int) -> size_t;
+ #[cfg_attr(any(target_os = "macos", target_os = "android"),
+ link_name = "je_mallocx")]
+ fn mallocx(size: size_t, flags: c_int) -> *mut c_void;
+ #[cfg_attr(any(target_os = "macos", target_os = "android"),
+ 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"),
+ 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"),
+ 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"),
+ link_name = "je_nallocx")]
+ fn nallocx(size: size_t, flags: c_int) -> size_t;
}
// The minimum alignment guaranteed by the architecture. This value is used to
#[no_mangle]
pub extern "C" fn __rust_allocate(size: usize, align: usize) -> *mut u8 {
let flags = align_to_flags(align);
- unsafe { je_mallocx(size as size_t, flags) as *mut u8 }
+ unsafe { mallocx(size as size_t, flags) as *mut u8 }
}
#[no_mangle]
align: usize)
-> *mut u8 {
let flags = align_to_flags(align);
- unsafe { je_rallocx(ptr as *mut c_void, size as size_t, flags) as *mut u8 }
+ unsafe { rallocx(ptr as *mut c_void, size as size_t, flags) as *mut u8 }
}
#[no_mangle]
align: usize)
-> usize {
let flags = align_to_flags(align);
- unsafe { je_xallocx(ptr as *mut c_void, size as size_t, 0, flags) as usize }
+ 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 { je_sdallocx(ptr as *mut c_void, old_size as size_t, flags) }
+ 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 { je_nallocx(size as size_t, flags) as usize }
+ unsafe { nallocx(size as size_t, flags) as usize }
}
// These symbols are used by jemalloc on android but the really old android