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Fix jemalloc usage on OSX

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Closes #82423
This commit is contained in:
Steven Fackler 2021-02-28 14:50:03 -05:00
parent 573a697a61
commit 6e52b23fa9
1 changed files with 14 additions and 0 deletions
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14
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();