diff options
Diffstat (limited to 'src/debug/gdbinit.py')
-rwxr-xr-x | src/debug/gdbinit.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/debug/gdbinit.py b/src/debug/gdbinit.py new file mode 100755 index 0000000..75ab5ca --- /dev/null +++ b/src/debug/gdbinit.py @@ -0,0 +1,28 @@ +class NextInstructionAddress(gdb.Command): + """ +Run until Next Instruction address. + +Usage: nia + +Put a temporary breakpoint at the address of the next instruction, and continue. + +Useful to step over int interrupts. + +See also: http://stackoverflow.com/questions/24491516/how-to-step-over-interrupt-calls-when-debugging-a-bootloader-bios-with-gdb-and-q +""" + def __init__(self): + super().__init__( + 'nia', + gdb.COMMAND_BREAKPOINTS, + gdb.COMPLETE_NONE, + False + ) + def invoke(self, arg, from_tty): + frame = gdb.selected_frame() + arch = frame.architecture() + pc = gdb.selected_frame().pc() + length = arch.disassemble(pc)[0]['length'] + gdb.Breakpoint('*' + str(pc + length), temporary = True) + gdb.execute('continue') + +NextInstructionAddress() |