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rt: Don't zero the unique box header

This commit is contained in:
Brian Anderson 2012-05-29 12:29:21 -07:00
parent a2bbdd3f52
commit b16bdd9ed0
1 changed files with 3 additions and 1 deletions
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4
src/rt/rust_upcall.cpp
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@ -164,14 +164,16 @@ exchange_malloc(rust_task *task, type_desc *td, uintptr_t size) {
size_t header_size = sizeof(rust_opaque_box);
size_t body_size = size;
size_t body_align = td->align;
// FIXME: This alignment calculation is suspicious. Is it right?
size_t total_size = align_to(header_size, body_align) + body_size;
void *p = task->kernel->malloc(total_size, "exchange malloc");
memset(p, '\0', total_size);
rust_opaque_box *header = static_cast<rust_opaque_box*>(p);
header->td = td;
memset(&header[1], '\0', body_size);
return (uintptr_t)header;
}