libs/rt-thread-official
libs
/
rt-thread-official
mirror of https://github.com/RT-Thread/rt-thread.git
4
0
Fork 0
Code Issues Releases Wiki Activity
rt-thread-official/libcpu/aarch64/common/stack_gcc.S

30 lines
594 B
ArmAsm
Raw Normal View History

[format] cleanup libcpu/aarch64 (#8950) * [dfs] fixup compiler warning Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate context switching codes Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate vector Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate context_gcc.S Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: moving headers to include directory Signed-off-by: Shell <smokewood@qq.com> * style: replace tab with space --------- Signed-off-by: Shell <smokewood@qq.com>
2024-06-28 00:23:09 +08:00
/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-05-18 Jesven the first version
* 2023-06-24 Shell Support debug frame for user thread
*/
#ifndef __ASSEMBLY__
#define __ASSEMBLY__
#endif
#include "rtconfig.h"
#include "asm-generic.h"
#include "asm-fpu.h"
#include "armv8.h"
.section .text
START_POINT(_thread_start)
[libcpu/arm64] feat: Trimming General Context This patch focuses on the ARM64 general context handling code. The modifications are aimed at enhancing performance by simplifying context save/restore operations. Changes include: - Adjusted stack alignment in `arch_set_thread_context` function. - Updated `lwp_gcc.S` to reset frame pointer and link register. - Refined `rt_hw_backtrace_frame_unwind` to handle user space address checks. - Added `GET_THREAD_SELF` macro in `asm-generic.h`. - Simplified context saving/restoring in `context_gcc.h` and related files. - Optimized `rt_hw_context_switch_interrupt` and related assembly routines. Signed-off-by: Shell <smokewood@qq.com>
2024-04-18 17:12:10 +08:00
mov x0, x21
[format] cleanup libcpu/aarch64 (#8950) * [dfs] fixup compiler warning Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate context switching codes Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate vector Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: separate context_gcc.S Signed-off-by: Shell <smokewood@qq.com> * [format] libcpu/arm64: moving headers to include directory Signed-off-by: Shell <smokewood@qq.com> * style: replace tab with space --------- Signed-off-by: Shell <smokewood@qq.com>
2024-06-28 00:23:09 +08:00
blr x19
mov x29, #0
blr x20
b . /* never here */
START_POINT_END(_thread_start)