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/* SPDX-License-Identifier: GPL-2.0-only */
/* Macro to initialize stack, perform seeding if required and finally call the
* function provided
* @stack_top : First address above the stack
* @stack_bottom : Lowest address on the stack
* @seed : Stack seeding required (1=yes/otherwise=no)
* @func : Function to call after initializing stack
*/
.macro stack_init stack_top, stack_bottom, seed, func
/* Check if stack seeding is required */
mov r0, #\seed
cmp r0, #1
bne call_func
/* Stack seeding */
ldr r0, =\stack_bottom
ldr r1, =\stack_top
ldr r2, =0xdeadbeef
init_stack_loop:
str r2, [r0]
add r0, #4
cmp r0, r1
bne init_stack_loop
call_func:
ldr sp, =\stack_top /* Set up stack pointer */
bl \func
.endm
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