linux/arch/arm64/Kconfig.debug
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   1menu "Kernel hacking"
   2
   3source "lib/Kconfig.debug"
   4
   5config FRAME_POINTER
   6        bool
   7        default y
   8
   9config DEBUG_STACK_USAGE
  10        bool "Enable stack utilization instrumentation"
  11        depends on DEBUG_KERNEL
  12        help
  13          Enables the display of the minimum amount of free stack which each
  14          task has ever had available in the sysrq-T output.
  15
  16config EARLY_PRINTK
  17        bool "Early printk support"
  18        default y
  19        help
  20          Say Y here if you want to have an early console using the
  21          earlyprintk=<name>[,<addr>][,<options>] kernel parameter. It
  22          is assumed that the early console device has been initialised
  23          by the boot loader prior to starting the Linux kernel.
  24
  25config PID_IN_CONTEXTIDR
  26        bool "Write the current PID to the CONTEXTIDR register"
  27        help
  28          Enabling this option causes the kernel to write the current PID to
  29          the CONTEXTIDR register, at the expense of some additional
  30          instructions during context switch. Say Y here only if you are
  31          planning to use hardware trace tools with this kernel.
  32
  33endmenu
  34