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gdbassemblycarryflag

gdb with assembler: Print status of carry flag

I've got an x86 assembler program which I'm debugging with gdb. Is there a way to print the status of the carry flag inside gdb with, like, "print $cf"?

Solution

  • You can use:

    info registers eflags

    to get the entire set of flags. You'll see a line like:

    eflags  0x41  [ CF ZF ]

    which means that the eflags register is set to 0x41, with the carry and zero flags set.