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目前基本功能已经可以在QEMU上跑起来，但是pthread和内核signal选中会报冲突。先合并一版本，后续解决这些问题。
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[Kernel] Add nested mutex feature
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* [compiler] 增加SConscript依赖标志 AddDepend
* RT_USING_NEWLIB->RT_USING_NEWLIBC RT_USING_ARM_LIBC->RT_USING_ARMLIBC
* 删除过时的板载测试例程
* [gd32] 移除无用的反汇编文件
* [bsp]移除老旧bsp中对RT_USING_NEWLIBC的手动宏定义
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enable zero-latency isr for critical interrupts.
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版本控制规范：https://semver.org/
目前的版本子号不是很规范，其中RT_VERSION甚至和VS那边造成了冲突
```c
/* RT-Thread version information */
#define RT_VERSION 4L /**< major version number */
#define RT_SUBVERSION 1L /**< minor version number */
#define RT_REVISION 1L /**< revise version number */
```
参考ESP32：
```c
/** Major version number (X.x.x) */
#define ESP_ARDUINO_VERSION_MAJOR 2
/** Minor version number (x.X.x) */
#define ESP_ARDUINO_VERSION_MINOR 0
/** Patch version number (x.x.X) */
#define ESP_ARDUINO_VERSION_PATCH 3
```
建议改成：
```c
/* Major version number (X.x.x) */
#define RT_VERSION_MAJOR 4
/* Minor version number (x.X.x) */
#define RT_VERSION_MINOR 2
/* Patch version number (x.x.X) */
#define RT_VERSION_PATCH 0
```
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解决 tms320f28379d bsp 启动的问题。主要改动如下。
修正context.s中汇编代码错误。在旧版的代码中，操作数为32位而汇编命令却使用了针对16位数据的命令MOV，导致程序在某些情况无法正常启动线程。
由于C28x的平台下，SP只支持16bit寻址，所以用于线程空间存放的heap以及ebss段都需要放在低16位的空间，针对这个问题修改了CMD文件。此外还增加基于CMD文件基于RAM的支持，方便调试。
新增rtdef.h中RT_SECTION，RT_USED，ALIGN和RT_WEAK的定义。旧版bsp中这些定义为空，导致INIT_EXPORT注册的函数失效。
修改程序启动代码，在程序入口直接调用原生启动代码
以上改动在LAUNCHXL-F28379D 通过了测试。
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* [fix] the risk for function exit() when open pthread support.
* [update] modify annotation from "user data" to "pthread_data".
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This reverts commit 6a05ddf63d1202456a37e970e5a9ab58370ed093.
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统一kernel内置rt_xxx的libc和标准libc库，防止割裂越来越大
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* [enhancement]Add string information for error
* Update src/kservice.c
* Update src/kservice.c
Co-authored-by: Man, Jianting (Meco) <[email protected]>
* remove %m
Signed-off-by: a1012112796 <[email protected]>
Co-authored-by: Meco Man <[email protected]>
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add __STDC_LIMIT_MACROS macro in Keil
add RT_USING_LIBC in simulator
add _DLIB_ADD_EXTRA_SYMBOLS=0 in IAR
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types (#5961)
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kservice.c
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default (#5778)
* [kconfig] add 64bit default value for stack size. set tick HZ as 1000 by default
* 用RT_KSERVICE_USING_STDLIB_MEMXXX代替RT_KSERVICE_USING_STDLIB_MEMCP/MEMSET
将RT_KSERVICE_USING_STDLIB设置为默认开启
* 优化rt_kprintf支持longlong的能力，默认在64位CPU为开启状态
RT_PRINTF_LONGLONG命名不规范，更改为RT_KPRINTF_USING_LONGLONG
* fix commit error
* fix error
* 优化 system 函数
* RT_KSERVICE_USING_STDLIB_MEMXXX->RT_KSERVICE_USING_STDLIB_MEMORY
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* [libcpu/aarch64] add smp support
* [libcpu/aarch64] rt_hw_trap_irq get irq instead of iar when using gicv2
* [libcpu/aarch64] disable irq/fiq when switch thread
* [libcpu/aarch64] add gtimer frq set and stack align
* [libcpu/aarch64] add gicv3 support and bsp/rockchip/rk3568
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* [add] src/clock.c add hook for rt_tick_increase
* [fix] clock.c rt_tick_incerase hook function
* Update clock.c
Co-authored-by: guo <[email protected]>
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* [add] the function realization of signal for posix.
* [update] the posix support for armclang.
* [add] the new macro "RT_USING_POSIX_TIMER".
* [modify] select "RT_USING_SOFT_TIMER" when use posix'timer.
* [bug] optimize the logic for the "time_xxx" functions.
* [modify] use "RT_USING_POSIX_TIMER" to protect the macro definition.
* [modify] error code when except happened.
* [delete] the "environ" is useless at this time.
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[kernel] remove .init_priority
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update notes
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- Backward compatible with existing function-pointer based hooking method
- Using RT_USING_HOOK as an on/off switch
- Introducing a new low-overhead macro-based hooking method
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