Help¶

Enable and use the null pointer exception option.
This is a debug feature in Cortex-M, allowing for
detecting null pointer dereferencing (raising a
CPU fault). Supporting the feature results in an
increased code footprint, determined by option
CORTEX_M_DEBUG_NULL_POINTER_EXCEPTION_PAGE_SIZE.

Note: this hidden option is selected by the choice
symbols corresponding to the DWT-based or to the
MPU-based solution.

Direct dependencies¶

CPU_CORTEX_M && ARM

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Symbols that select this symbol¶

Kconfig definition¶

At <Zephyr>/arch/arm/core/aarch32/cortex_m/Kconfig:395

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:29 → <Zephyr>/arch/Kconfig:12 → <Zephyr>/arch/arm/Kconfig:57 → <Zephyr>/arch/arm/core/aarch32/Kconfig:260

Menu path: (Top) → ARM Options

config CORTEX_M_DEBUG_NULL_POINTER_EXCEPTION
    bool
    depends on CPU_CORTEX_M && ARM
    help
      Enable and use the null pointer exception option.
      This is a debug feature in Cortex-M, allowing for
      detecting null pointer dereferencing (raising a
      CPU fault). Supporting the feature results in an
      increased code footprint, determined by option
      CORTEX_M_DEBUG_NULL_POINTER_EXCEPTION_PAGE_SIZE.

      Note: this hidden option is selected by the choice
      symbols corresponding to the DWT-based or to the
      MPU-based solution.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)