Reentrant data items are represented by a zero-length PR ESD record with the binding scope set to Import-Export. Non-reentrant data items (supported for XPLINK only) are represented by an ER ESD record with the binding scope set to Import-Export and the 'executable' bit set to 'non-executable'. The addressing mode and linkage type fields should match those of the exported data you wish to use.
The binder builds data descriptors and import information only if the ESD record for the imported data item is the target (R Pointer) of at least one RLD entry.