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Fix destructor return value in emcc.rs

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This commit is contained in:
Amanieu d'Antras 2020-01-13 00:39:41 +00:00
parent 8f60db8da8
commit 4f163afed6
1 changed files with 14 additions and 6 deletions
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20
src/libpanic_unwind/emcc.rs
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@ -76,12 +76,20 @@ pub unsafe fn panic(data: Box<dyn Any + Send>) -> u32 {
}
ptr::write(exception, Exception { data: Some(data) });
__cxa_throw(exception as *mut _, &EXCEPTION_TYPE_INFO, exception_cleanup);
}
extern "C" fn exception_cleanup(ptr: *mut libc::c_void) {
unsafe {
ptr::drop_in_place(ptr as *mut Exception);
super::__rust_drop_panic();
}
// On WASM and ARM, the destructor returns the pointer to the object.
cfg_if::cfg_if! {
if #[cfg(any(target_arch = "arm", target_arch = "wasm32"))] {
type DestructorRet = *mut libc::c_void;
} else {
type DestructorRet = ();
}
}
extern "C" fn exception_cleanup(ptr: *mut libc::c_void) -> DestructorRet {
unsafe {
ptr::drop_in_place(ptr as *mut Exception);
super::__rust_drop_panic();
}
}
@ -104,7 +112,7 @@ extern "C" {
fn __cxa_throw(
thrown_exception: *mut libc::c_void,
tinfo: *const TypeInfo,
dest: extern "C" fn(*mut libc::c_void),
dest: extern "C" fn(*mut libc::c_void) -> DestructorRet,
) -> !;
fn __gxx_personality_v0(
version: c_int,