Change segment attributes

Change segment attributes

 Action    name: EditSegment

This command allows you to change segment attributes. You can change all attributes except the segment base. To change the segment base you have to delete the segment and create it again.

Please use the following links to learn about the segment attributes:

      How to change segment name
      How to change segment class
      How to change segment addressing mode (16/32)
      How to change segment alignment
      How to change segment combination

Changing the segment class may change the segment type.

MOVE ADJACENT SEGMENTS: means that previous and next segments will be shrunk or expanded filling appearing gaps between segments when you change the current segment. Click here for more information.

DISABLE ADDRESSES: when you shrink the segment, it completely removes all information about bytes going out of the segment. Otherwise IDA will discard information about instructions/data, comments etc, but retain byte values so that you will be able to create another segment afterwards.

If IDA creates 2 segments where only one segment must exist, you may try the following sequence:

        - delete one segment. Choose one with
          bad segment base value. Do not disable addresses occupied
          by the segment being deleted.
        - change bounds of another segment.

Note that the create segment command changes the boundaries of the overlapping segment automatically.

Segments with the 'debugger' attribute are the segments whose memory contents are not saved in the database. Usually these segments are created by the debugger to reflect the current memory state of the program.

However, the user can modify this attribute.

If it is cleared, then the segment will permanently stay in the database after closing the debugger session. The database will reflect the state of the segment which was at the time when the status is changed.

If it is set, then the segment will become a temporary segment and will be deleted at the end of the debugging session.

The "debugger segment" checbkox is available only during debugging sessions.

The 'loader' segments are the segment created by the file loader. The segment having this attribute are considered to be part of the input file.

A segment with the 'debugger' attribute set and the 'loader' attribute cleared is considered to be an ephemeral segment. Such segments are not analyzed automatically by IDA Pro.