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Stop relying on linking details of std’s default allocator

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We’ve been bitten before by symbol names changing:
https://github.com/servo/heapsize/pull/46
and upstream is planning to stop using jemalloc by default:
https://github.com/rust-lang/rust/issues/33082#issuecomment-309781465

So use the (relatively) new `#[global_allocator]` attribute
to explicitly select the system allocator on Windows
and jemalloc (now in an external crate) on other platforms.
This choice matches current defaults.
This commit is contained in:
Simon Sapin 2017-10-18 13:38:07 +02:00
parent 4c538b642e
commit 959ce482dd
20 changed files with 158 additions and 62 deletions
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7
components/profile/lib.rs
View file

@ -2,17 +2,14 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#![cfg_attr(all(feature = "unstable", not(target_os = "windows")), feature(alloc_jemalloc))]
#![deny(unsafe_code)]
#[allow(unused_extern_crates)]
#[cfg(all(feature = "unstable", not(target_os = "windows")))]
extern crate alloc_jemalloc;
extern crate heartbeats_simple;
extern crate influent;
extern crate ipc_channel;
#[allow(unused_extern_crates)]
#[cfg(all(feature = "unstable", not(target_os = "windows")))]
extern crate jemalloc_sys;
#[cfg(not(target_os = "windows"))]
extern crate libc;
#[macro_use]