CONFIG_DEBUG_LL: Kernel low-level debugging functions (read help!)

General informations

The Linux kernel configuration item CONFIG_DEBUG_LL has multiple definitions:

Kernel low-level debugging functions (read help!) found in arch/arm/Kconfig.debug

The configuration item CONFIG_DEBUG_LL:

• prompt: Kernel low-level debugging functions (read help!)
• type: bool
• depends on: CONFIG_DEBUG_KERNEL
• defined in arch/arm/Kconfig.debug
• found in Linux kernels: 3.2–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.8, 6.9-rc+HEAD

Help text

Say Y here to include definitions of printascii, printch, printhex in the kernel. This is helpful if you are debugging code that executes before the console is initialized.

Note that selecting this option will limit the kernel to a single UART definition, as specified below. Attempting to boot the kernel image on a different platform *will not work*, so this option should not be enabled for kernels that are intended to be portable.

Kernel low-level debugging functions found in arch/unicore32/Kconfig.debug

The configuration item CONFIG_DEBUG_LL:

• prompt: Kernel low-level debugging functions
• type: bool
• depends on: CONFIG_DEBUG_KERNEL
• defined in arch/unicore32/Kconfig.debug
• found in Linux kernels: 2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.8

Help text

Say Y here to include definitions of printascii, printch, printhex in the kernel. This is helpful if you are debugging code that executes before the console is initialized.

Kernel low-level debugging functions found in arch/arm/Kconfig.debug

The configuration item CONFIG_DEBUG_LL:

• prompt: Kernel low-level debugging functions
• type: bool
• depends on: CONFIG_DEBUG_KERNEL
• defined in arch/arm/Kconfig.debug
• found in Linux kernels: 2.6.9–2.6.39, 3.0–3.1

Help text

Say Y here to include definitions of printascii, printch, printhex in the kernel. This is helpful if you are debugging code that executes before the console is initialized.

Kernel low-level debugging functions found in arch/arm26/Kconfig.debug

The configuration item CONFIG_DEBUG_LL:

• prompt: Kernel low-level debugging functions
• type: bool
• depends on: CONFIG_DEBUG_KERNEL
• defined in arch/arm26/Kconfig.debug
• found in Linux kernels: 2.6.9–2.6.22

Help text

Say Y here to include definitions of printascii, printchar, printhex in the kernel. This is helpful if you are debugging code that executes before the console is initialized.

Kernel low-level debugging functions found in arch/arm26/Kconfig

The configuration item CONFIG_DEBUG_LL:

• prompt: Kernel low-level debugging functions
• type: bool
• depends on: CONFIG_DEBUG_KERNEL
• defined in arch/arm26/Kconfig
• found in Linux kernels: 2.5.71–2.5.75, 2.6.0–2.6.8

Help text

Say Y here to include definitions of printascii, printchar, printhex in the kernel. This is helpful if you are debugging code that executes before the console is initialized.

Kernel low-level debugging functions found in arch/arm/Kconfig

The configuration item CONFIG_DEBUG_LL:

• prompt: Kernel low-level debugging functions
• type: bool
• depends on: CONFIG_DEBUG_KERNEL
• defined in arch/arm/Kconfig
• found in Linux kernels: 2.5.45–2.5.75, 2.6.0–2.6.8

Help text

Say Y here to include definitions of printascii, printchar, printhex in the kernel. This is helpful if you are debugging code that executes before the console is initialized.

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The data is retrived from:

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