Watchpoint Length Specifier
The watchpoint length specifier syntax recognized by MDB is different from the syntax
described in adb(1). In particular, the adb watchpoint commands :w, :a, and :p
allow an integer length in bytes to be inserted between the colon and
the command character. In MDB, the count should be specified following the initial
address as a repeat count. Stated simply, these adb(1) commands:
are specified in MDB as
The MDB ::wp dcmd provides more complete facilities for creating user process watchpoints.
Similarly, the legacy kadb length modifier command $l is not supported. Therefore, the
watchpoint size should be specified to each ::wp command used in kmdb.