Method add_patchable_call_site

cranelift/codegen/src/machinst/buffer.rs:1780–1785

Add a patchable call record at the current offset The actual call is expected to have been emitted; the VCodeInst trait specifies how to NOP it out, and we carry that information to the finalized Machbuffer.

(&mut self, len: u32)

    /// specifies how to NOP it out, and we carry that information to
    /// the finalized Machbuffer.
    pub fn add_patchable_call_site(&mut self, len: u32) {
        self.patchable_call_sites.push(MachPatchableCallSite {
            ret_addr: self.cur_offset(),
            len,
        });
    }

    /// Add an unwind record at the current offset.
    pub fn add_unwind(&mut self, unwind: UnwindInst) {