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Rollup merge of #82642 - sfackler:jemalloc-zone, r=pnkfelix 

Fix jemalloc usage on OSX

Closes #82423
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Dylan DPC 2021-03-08 13:13:22 +01:00 committed by GitHub
parent 0681951287 1b4860ab2a
commit 7b78d86d6a
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1 changed files with 14 additions and 0 deletions
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compiler/rustc/src/main.rs
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@ -24,6 +24,20 @@ fn main() {
static _F5: unsafe extern "C" fn(*mut c_void, usize) -> *mut c_void = jemalloc_sys::realloc;
#[used]
static _F6: unsafe extern "C" fn(*mut c_void) = jemalloc_sys::free;
// On OSX, jemalloc doesn't directly override malloc/free, but instead
// registers itself with the allocator's zone APIs in a ctor. However,
// the linker doesn't seem to consider ctors as "used" when statically
// linking, so we need to explicitly depend on the function.
#[cfg(target_os = "macos")]
{
extern "C" {
fn _rjem_je_zone_register();
}
#[used]
static _F7: unsafe extern "C" fn() = _rjem_je_zone_register;
}
}
rustc_driver::set_sigpipe_handler();