CONFIG_STACK_ALIGN_DOUBLE_WORD:

This is needed to conform to AAPCS, the procedure call standard for the ARM. It wastes stack space.

Symbol:

STACK_ALIGN_DOUBLE_WORD

Type:

bool

Value:

“n”

User value:

(no user value)

Visibility:

“n”

Is choice item:

false

Is defined:

true

Is from env.:

false

Is special:

false

Prompts:

• “Align stacks on double-words (8 octets)”

Default values:

• y (value: “y”)
• Condition: (none)

Selects:

(no selects)

Reverse (select-related) dependencies:  

(no reverse dependencies)

Additional dependencies from enclosing menus and ifs:  

CPU_CORTEX_M && ARM && CPU_CORTEX_M (value: “n”)

Locations:

• ../arch/arm/core/cortex_m/Kconfig:124