Help¶

Builds Zephyr with Address Sanitizer enabled. This is currently only supported by boards based on the posix architecture, and requires a recent-ish compiler with the -fsanitize=address command line option, and the libasan library.

Note that at exit leak detection is disabled for 64-bit boards when GCC is used due to potential risk of a deadlock in libasan. This behavior can be changes by adding leak_check_at_exit=1 to the environment variable ASAN_OPTIONS.

Direct dependencies¶

ARCH_POSIX

(Includes any dependencies from ifs and menus.)

Defaults¶

No defaults. Implicitly defaults to n.

Kconfig definition¶

At <Zephyr>/subsys/debug/Kconfig:102

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:34 → <Zephyr>/subsys/Kconfig:16

Menu path: (Top) → Sub Systems and OS Services → Debugging Options

config ASAN
    bool "Build with address sanitizer"
    depends on ARCH_POSIX
    help
      Builds Zephyr with Address Sanitizer enabled. This is currently
      only supported by boards based on the posix architecture, and requires a
      recent-ish compiler with the -fsanitize=address command line option,
      and the libasan library.

      Note that at exit leak detection is disabled for 64-bit boards when
      GCC is used due to potential risk of a deadlock in libasan.
      This behavior can be changes by adding leak_check_at_exit=1 to the
      environment variable ASAN_OPTIONS.

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