Introduce PID_ERROR as an invalid exec return value.
[pintos-anon] / src / lib / kernel /
2004-09-20 Ben PfaffAdd putbuf().
2004-09-13 Ben PfaffMake the bitmap responsible for allocation.
2004-09-13 Ben PfaffNeeds #include <console.h>.
2004-09-11 Ben PfaffDo console locking.
2004-09-07 Ben PfaffFirst stab at interrupt-driven serial.
2004-09-06 Ben PfaffFix up header guards.
2004-09-06 Ben PfaffRename printk() to printf().