Steps for finding external RENT variables

Before you begin: You need to know the WSA. To find this information see Locating the Writable Static Area (WSA). For this procedure's example, the address of writable static is X'02D66E40'.

Perform the following steps to find external RENT variables:

Find the offset of the external variable in the Prelinker Writable Static Map. In the example shown in Figure 1, the offset for DFHEIPTR is X'28'.

Figure 1. Writable static map produced by prelinker

========================================================================
|                         Writable Static Map                          |
========================================================================

  OFFSET    LENGTH  FILE ID  INPUT NAME

       0         1   00001   DFHC0011
       4         1   00001   DFHC0010
       8         2   00001   DFHDUMMY
       C         2   00001   DFHB0025
      10         2   00001   DFHB0024
      14         2   00001   DFHB0023
      18         2   00001   DFHB0022
      1C         2   00001   DFHB0021
      20         2   00001   DFHB0020
      24         2   00001   DFHEIB0
      28         4   00001   DFHEIPTR
      2C         4   00001   DFHCP011
      30         4   00001   DFHCP010
      34         4   00001   DFHBP025
      38         4   00001   DFHBP024
      3C         4   00001   DFHBP023
      40         4   00001   DFHBP022
      44         4   00001   DFHBP021
      48         4   00001   DFHBP020
      4C         4   00001   DFHEICB
      50         4   00001   DFHEID0
      54         4   00001   DFHLDVER
      58       420   00001   @STATIC

Add the offset of the external variable to the address of writable static, as shown below.
```
X'02D66E40' + X'28' = X'2D66E68'
```

When you are done, you have the address of the value of the external variable in the Language Environment dump.