zephyr/arch/riscv
Andrew Boie 618426d6e7 kernel: add Z_STACK_PTR_ALIGN ARCH_STACK_PTR_ALIGN
This operation is formally defined as rounding down a potential
stack pointer value to meet CPU and ABI requirments.

This was previously defined ad-hoc as STACK_ROUND_DOWN().

A new architecture constant ARCH_STACK_PTR_ALIGN is added.
Z_STACK_PTR_ALIGN() is defined in terms of it. This used to
be inconsistently specified as STACK_ALIGN or STACK_PTR_ALIGN;
in the latter case, STACK_ALIGN meant something else, typically
a required alignment for the base of a stack buffer.

STACK_ROUND_UP() only used in practice by Risc-V, delete
elsewhere.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2020-04-21 18:45:45 -04:00
..
core kernel: add Z_STACK_PTR_ALIGN ARCH_STACK_PTR_ALIGN 2020-04-21 18:45:45 -04:00
include kernel: interrupt/idle stacks/threads as array 2020-03-16 23:17:36 +02:00
CMakeLists.txt riscv: toolchain arguments for a 64-bit build 2019-08-09 09:11:45 -05:00
Kconfig RISCV compiler: Set mabi and march via Kconfig options 2020-04-06 21:54:07 -04:00