This is the documentation for the latest (main) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

CONFIG_ARCH

(No prompt – not directly user assignable.)

Type: string

Help

System architecture string.

Defaults

  • “arc”

  • “arm”

  • “arm64”

  • “nios2”

  • “posix”

  • “riscv64” if 64BIT

  • “riscv32”

  • “sparc”

  • “x86”

  • “xtensa”

Kconfig definitions

At arch/arc/Kconfig:9

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → ARC Options

config ARCH
    string
    default "arc"
    depends on ARC

At arch/arm/Kconfig:9

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → ARM Options

config ARCH
    string
    default "arm"
    depends on ARM

At arch/arm64/Kconfig:9

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → ARM64 Options

config ARCH
    string
    default "arm64"
    depends on ARM64

At arch/nios2/Kconfig:7

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → Nios II Options

config ARCH
    string
    default "nios2"
    depends on NIOS2

At arch/posix/Kconfig:9

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → POSIX (native) Options

config ARCH
    string
    default "posix"
    depends on ARCH_POSIX

At arch/riscv/Kconfig:7

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → RISCV Options

config ARCH
    string
    default "riscv64" if 64BIT
    default "riscv32"
    depends on RISCV

At arch/sparc/Kconfig:7

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → SPARC Options

config ARCH
    string
    default "sparc"
    depends on SPARC

At arch/x86/Kconfig:9

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → X86 Architecture Options

config ARCH
    string
    default "x86"
    depends on X86

At arch/xtensa/Kconfig:21

Included via Kconfig:8Kconfig.zephyr:37arch/Kconfig:12

Menu path: (Top) → XTENSA Options

config ARCH
    string
    default "xtensa"
    depends on XTENSA

At arch/Kconfig:945

Included via Kconfig:8Kconfig.zephyr:37

Menu path: (Top)

config ARCH
    string
    help
      System architecture string.

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