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cdebugginggdbgnu

Displaying struct values in GDB

In GDB, given a variable that points to a struct, print will display the raw pointer value and x will display the raw bytes pointed to. Is there any way to display the data pointed to as that struct, i.e. a list of fields and their values?

Solution 
  • print *variable

    If you do that it will display the value of that variable in GDB.
    You also have an option to display the struct with indentation and new lines:

    $1 = {
  next = 0x0,
  flags = {
    sweet = 1,
    sour = 1
  },
  meat = 0x54 "Pork"
}

    For that you need to set the pretty print:

    set print pretty on

    If you want to print an array of values you do:

    print *array@len