bbe5e1e6eb
Namespaced the generated headers with `zephyr` to prevent potential conflict with other headers. Introduce a temporary Kconfig `LEGACY_GENERATED_INCLUDE_PATH` that is enabled by default. This allows the developers to continue the use of the old include paths for the time being until it is deprecated and eventually removed. The Kconfig will generate a build-time warning message, similar to the `CONFIG_TIMER_RANDOM_GENERATOR`. Updated the includes path of in-tree sources accordingly. Most of the changes here are scripted, check the PR for more info. Signed-off-by: Yong Cong Sin <ycsin@meta.com>
41 lines
1.1 KiB
ArmAsm
41 lines
1.1 KiB
ArmAsm
/*
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* Copyright (c) 2020 Espressif Systems (Shanghai) Co., Ltd.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <xtensa/coreasm.h>
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#include <xtensa/corebits.h>
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#include <xtensa/config/system.h>
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#include <xtensa/hal.h>
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#include <xtensa_asm2_context.h>
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#include <zephyr/offsets.h>
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.section .iram1, "ax"
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.align 4
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.global xtensa_backtrace_get_start
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.type xtensa_backtrace_get_start, @function
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xtensa_backtrace_get_start:
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entry a1, 32
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/* Spill registers onto stack (excluding this function) */
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call8 xthal_window_spill
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/* a2, a3, a4 should be out arguments for i PC, i SP, i-1 PC respectively.
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* Use a6 and a7 as scratch */
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/* Load address for interrupted stack */
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l32i a6, a5, 0
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/* Load i PC in a7 */
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l32i a7, a6, ___xtensa_irq_bsa_t_pc_OFFSET
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/* Store value of i PC in a2 */
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s32i a7, a2, 0
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/* Load value for (i-1) PC, which return address of i into a7 */
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l32i a7, a6, ___xtensa_irq_bsa_t_a0_OFFSET
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/* Store value of (i-1) PC in a4 */
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s32i a7, a4, 0
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/* Add base stack frame size in interrupted stack to get i SP */
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addi a6, a6, ___xtensa_irq_bsa_t_SIZEOF
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/* Store i SP in a3 */
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s32i a6, a3, 0
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retw
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