bjoernager/rust
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use jemallocator in rustc/rustdoc

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This commit is contained in:
Gus Wynn 2021-04-04 14:07:56 -07:00
parent 8ad6a443cf
commit 3965773ae7
7 changed files with 107 additions and 17 deletions
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15
compiler/rustc/src/main.rs
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@ -1,3 +1,16 @@
// Configure jemalloc as the `global_allocator` when configured. This is
// so that we use the sized deallocation apis jemalloc provides
// (namely `sdallocx`).
//
// The symbol overrides documented below are also performed so that we can
// ensure that we use a consistent allocator across the rustc <-> llvm boundary
#[cfg(feature = "jemalloc")]
#[global_allocator]
static ALLOC: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
#[cfg(feature = "tikv-jemalloc-sys")]
use tikv_jemalloc_sys as jemalloc_sys;
fn main() {
// Pull in jemalloc when enabled.
//
@ -7,7 +20,7 @@ fn main() {
// dynamic libraries. That means to pull in jemalloc we actually need to
// reference allocation symbols one way or another (as this file is the only
// object code in the rustc executable).
#[cfg(feature = "jemalloc-sys")]
#[cfg(feature = "tikv-jemalloc-sys")]
{
use std::os::raw::{c_int, c_void};