| /* |
| * Copyright 2017, Data61 |
| * Commonwealth Scientific and Industrial Research Organisation (CSIRO) |
| * ABN 41 687 119 230. |
| * |
| * This software may be distributed and modified according to the terms of |
| * the BSD 2-Clause license. Note that NO WARRANTY is provided. |
| * See "LICENSE_BSD2.txt" for details. |
| * |
| * @TAG(DATA61_BSD) |
| */ |
| |
| /* See trampoline.h for an explanation of this functionality. */ |
| |
| .global debug_trampoline |
| .text |
| |
| #ifdef CONFIG_ARCH_AARCH32 |
| debug_trampoline: |
| /* Give ourselves a stack. */ |
| ldr sp, =debug_stack_top |
| |
| /* Shuffle the (up to) three arguments. */ |
| mov r4, r0 |
| mov r0, r1 |
| mov r1, r2 |
| mov r2, r3 |
| |
| /* bl so, if the caller had set the lr, the callee can return through to |
| * it. |
| */ |
| blx r4 |
| bx lr |
| |
| .bss |
| .align 8 |
| .space 4096 |
| debug_stack_top: |
| #endif /* CONFIG_ARCH_AARCH64 */ |
