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模拟器_simulator
[讨论贴] RT-Thread的模拟器实现(posix version running on linux)
发布于 2013-01-07 00:28:46 浏览：11662
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1. 谁在做模拟器？ 目前已经有了一个windows上的RTT模拟器，它叫simulator，在bsp/simulator下。目前只能使用visual studio编译，运行于windows平台。这个模拟器相对来说比较稳定，也已经支持了一部分RTT组件，但依然还有很多可以做的工作。 有不少网友希望开发一个linux下的RTT模拟器，即simulator的linux版本，其实这方面的工作很早之前就已经有人探索过了，参见 论坛网友parai的帖子：rtThread-posix [http://www.rt-thread.org/phpBB3/viewtopic.php?t=1719](http://www.rt-thread.org/phpBB3/viewtopic.php?t=1719) 这个只是内核的移植，并且还有一些bug，后来parai的兴趣转向其他方向，所以这个工作就荒废了，不过现在有另外一位网友 wizardxbl准备接手这个工作，感谢wizardxbl的热心参与。 2. 他山之石可以攻玉 其实这两份RTT模拟器的内核实现应该都来自对FreeRTOS的模拟器实现的参考，所以我提供一些FreeRTOS模拟器的资料，以飨读者。 1) FreeRTOS 的linux上的模拟器实现（有源码） 帖子地址： [http://www.freertos.org/FreeRTOS-simulator-for-Linux.html](http://www.freertos.org/FreeRTOS-simulator-for-Linux.html) 在这篇帖子中，给出了大致的说明，并给出了模拟器源码，注意在帖子的最后页说明了这个模拟器存在的问题，所以需要仔细阅读。 源码包我放在这里，大家可以直接下载： [attachment=-1] 2)[论文一篇 PDF文件] 一种符合POSIX规范的FreeRTOS模拟器的设计与实现 [attach]0[/attach] 3. 模拟器开发涉及哪些工作 关于模拟器开发涉及到的功能和组件，包括： 0. 稳定的内核 [必须] 1. 串口模拟+finsh组件 2. DFS+SD卡，nand flash，nor flash，以及各个文件系统的支持 3. RTGUI支持 4. LWIP 5. APP module支持 4. 如何开发？ 现在RTT的源码已经全面转向github，这个模拟器的开发也可以放在github上进行。放置于github上也有利于其他感兴趣的同学一起参与。（我看到grissiom兄在wizardxbl帖子里提及，所以这里算是引用grissiom的建议 [s:158] ）。 <br> 下载附件 [Posix_GCC_Simulator_6.0.4.zip](https://oss-club.rt-thread.org/uploads/3230_4e81ef83eabcd6f08e1f3fe5491825f5.zip) <a href="https://oss-club.rt-thread.org/uploads/3230_dc8718315450ec2897470c85aa3f711f.pdf" download="一种符合POSIX规范的FreeRTOS模拟器的设计与实现.pdf">下载附件[一种符合POSIX规范的FreeRTOS模拟器的设计与实现.pdf] </a><a href="https://oss-club.rt-thread.org/uploads/3230_5080a34392abca8f56d9d77209fa5997.7z" download="posix.7z">下载附件[posix.7z] </a> 下载附件 [simlinux.7z](https://oss-club.rt-thread.org/uploads/3230_ada2f7a3abc95c5ac32b1ab53403e719.7z)
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wizardxbl
2013-01-07
这家伙很懒，什么也没写！
目前我发现的情况是 `rt_system_scheduler_start()`开始之后 线程切换`test1->test2->tidle` 然后就一直停在`tidle`了 前面是根据线程优先级从高优先级到低优先级进行的。
prife
2013-01-10
这家伙很懒，什么也没写！
贴一个我写pthread测试程序，可以实现任意`suspend/resume`一个线程。 程序的效果： 主线程中创建多个pthead线程，一开始，所有的线程都被挂起（就像RTT中一样，每个被创建的线程一开始都是被挂起的，`rt_scheduler`才会真正将其调度运行） 按下CTRL+C键，可以会启动第一个创建的线程，再次按CTRL+C键就会阻塞这个线程，然后循环。 这个程序其实就是一个最简单的RTT内核的thread_switch过程的模拟。 ```c #include <pthread.h> #include <stdio.h> #include <stdlib.h> #include <signal.h> #include <unistd.h> #include <semaphore.h> #define TRACE printf //#define TRACE(...) #define NUM_THREADS 2 typedef struct _thread { pthread_t pthread; void (*task) (void *); void * para; void (*exit) (void); sem_t sem; } thread_t; static thread_t thread_table[NUM_THREADS]; #define THREAD_T(thread) ((thread_t *)thread) #define MSG_SUSPEND SIGUSR1 /* #define MSG_RESUME SIGUSR2 */ static void mainthread_signal_handler(int sig) { static int i; pthread_t tid; tid = pthread_self(); TRACE("thread <%x>! signal <%d> ", (unsigned int)tid, sig); i = 1-i; if (i) { /* resume the thread */ sem_post(&thread_table[0].sem); } else { /* suspend the thread */ pthread_kill(thread_table[0].pthread, MSG_SUSPEND); } } static void thread_switch_handler(int sig) { if (sig == MSG_SUSPEND) { sem_wait(&thread_table[0].sem); } } static void * thread_run(void * parameter) { //rt_thread_t tid; thread_t * thread; //tid = rt_thread_self(); thread = THREAD_T(parameter); TRACE("<%x> stop on sem... ", (unsigned int)thread->pthread); sem_wait(&thread->sem); TRACE(" <%x> starts running... ", (unsigned int)thread->pthread); thread->task(thread->para); TRACE(" <%x> exit... ", (unsigned int)thread->pthread); thread->exit(); sem_destroy(&thread->sem); pthread_exit(NULL); } static int thread_create( thread_t * thread, void *task, void *parameter, void *pexit) { int res; pthread_attr_t attr; //thread_t * thread = THREAD_T(pt); thread->task = task; thread->para = parameter; thread->exit = pexit; signal_install(MSG_SUSPEND, thread_switch_handler); if (sem_init(&thread->sem, 0, 0) != 0) { printf("init thread->sem failed, exit "); exit(EXIT_FAILURE); } /* No need to join the threads. */ pthread_attr_init(&attr); pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); /* create a posix thread */ res = pthread_create(&thread->pthread, &attr, &thread_run, (void *)thread); if (res) { printf("pthread create faild, <%d> ", res); exit(EXIT_FAILURE); } } int signal_install(int sig, void (*func)(int)) { struct sigaction act; /* set the signal handler */ act.sa_handler = func ; sigemptyset(&act.sa_mask); act.sa_flags = 0; sigaction(sig, &act, 0); } static void *PrintHello(void *para) { pthread_t tid; tid = pthread_self(); for(;;) { printf("thread <%x>! Hello, world! ", (unsigned int)tid); sleep(1); //delay(1); } } static void *threadexit() { pthread_t tid; tid = pthread_self(); printf("thread <%x>! I'm leaving. ", (unsigned int)tid); } int main (int argc, char *argv[]) { int t; pthread_t tid; /* install signal handler of main thread */ signal_install(SIGINT, mainthread_signal_handler); /* just output the main thread's id */ tid = pthread_self(); printf("main thread <%x>! ", (unsigned int)tid); for(t=0; t<NUM_THREADS; t++) { thread_create(&thread_table[t], &PrintHello, NULL, &threadexit); TRACE("main: thread %x created ", (unsigned int)thread_table[t].pthread); } for(;;) { sleep(10); } TRACE("main exit... "); return 0; } ``` 编译： ```c prife@smart:~/git/pthreads$ cat cp.sh #!/bin/bash gcc -D_REENTRANT threadv1.c -o threadv1 -lpthread ``` 运行： ``` prife@smart:~/git/pthreads$ ./threadv1 main thread <b75426c0>! main: thread b7541b40 created <b7541b40> stop on sem... main: thread b6d40b40 created <b6d40b40> stop on sem... ^Cthread <b75426c0>! signal <2> <b7541b40> starts running... thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! ^Cthread <b75426c0>! signal <2> ^Cthread <b75426c0>! signal <2> thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! ^Cthread <b75426c0>! signal <2> ^Cthread <b75426c0>! signal <2> thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! ^Cthread <b75426c0>! signal <2> ^Cthread <b75426c0>! signal <2> thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! thread <b7541b40>! Hello, world! ^Cthread <b75426c0>! signal <2> ^退出 (核心已转储) ``` 参考资料： - https://computing.llnl.gov/tutorials/pthreads/ - http://cursuri.cs.pub.ro/~apc/2003/resources/pthreads/uguide/document.htm - Beginning Linux Programming, Ed4, 第11章，第12章 - http://bbs.csdn.net/topics/350025031
aozima
2013-01-10
调网络不抓包，调I2C等时序不上逻辑分析仪，就像电工不用万用表！多用整理的好的文字，比截图更省流量，还能在整理过程中思考。
前排。。学习。
wizardxbl
2013-01-11
这家伙很懒，什么也没写！
与RTT内核相关的函数总共有6个 ``` rt_hw_stack_init() rt_hw_interrupt_disable() rt_hw_interrupt_enable() rt_hw_context_switch_to() rt_hw_context_switch() rt_hw_context_switch_interrupt() ``` 这里面分为4类函数 1 系统启动阶段 初始化阶段，每当建立一个rtt线程，就会调用rt_hw_stack_init()函数一次 2 系统开始调度阶段 调用rt_hw_context_switch_to()函数一次，以后不再调用，这个函数完成底部的线程第一次切换 3 调度器工作阶段 `rt_hw_context_switch()` `rt_hw_context_switch_interrupt()` 这两个函数调用，并且前期`rt_hw_context_switch()`函数被调用，后期`rt_hw_context_switch_interrupt()`函数被调用 4 其他 `rt_hw_interrupt_disable()` `rt_hw_interrupt_enable()` 这两个函数的具体功能我还说不好
prife
2013-01-12
这家伙很懒，什么也没写！
rt_hw_stack_init() rt_hw_context_switch_to() 以下两个函数效果一样。在支持硬件终端嵌套时，如果存在中断嵌套，就执行 switch_interrupt..模拟器上不会出现这种情况，所以这两个函数实现可以一致。 rt_hw_context_switch() rt_hw_context_switch_interrupt() 这两个函数是用来关中断，参考simulator for win32的设计，中断模拟执行是在主线程for循环代码。在windows版本中，使用wait multi object 实现，在linux上可以使用 pthread_mutex + phtread_cond(即互斥锁和条件变量），不过需要注意，pthread_mutex_init默认创建出来的互斥锁是NORMAL型，不支持递归。因为rt_hw_interrupt_disable在rtt中存在嵌套调用的情况，如果mutex不支持递归，则会导致deadlock）。因此需要设置mutex的为递归型mutex. rt_hw_interrupt_disable() rt_hw_interrupt_enable() 今天调了一天simulator for linux(非parai的内核代码，而是simulator win32的linux移植版本，参见附件）的内核移植代码。需要多运行几次，大部分时候会都爆段错误，不过偶尔可以正常运行实习线程切换及推退出后调用rt_thread_exit切换其他线程。原因就在于这种实现方式要求主进程（mainthread_schedulor所在的线程）的优先级比普通rtt线程高。但是在linux中，普通权限模式下创建的多线程程序的调度算法只能选择SCHED_OTHER模式，这种模式，多个线程的优先级相同。这就是导致段错误的元凶。 所以现在就有两个显然的思路： 1. 修改simulator linux的内核移植代码，修改线程调度模式，指定主线程优先级高于普通线程优先级，这样编译生成的模拟器需要使用sudo启动才行。 2. 修改simulator linux的实现机制。使之可以不依赖各个线程的优先级别即可实现稳定调度。 [attach]1707[/attach] [attach]1708[/attach]
grissiom
2013-01-13
这家伙很懒，什么也没写！
感觉上，还是不要依赖通用操作系统的优先级吧，这东西应该不靠谱…… 请教下，POSIX thread 里，signal 是 per thread 的么？每个 thread 有自己的信号处理函数？
prife
2013-01-14
这家伙很懒，什么也没写！
>感觉上，还是不要依赖通用操作系统的优先级吧，这东西应该不靠谱…… > >请教下，POSIX thread 里，signal 是 per thread 的么？每个 thread 有自己的信号处理函数？ 是啊，方法1不靠谱，我这边改了优先级也不行。方法2已经调试成功了。代码已经推送到github上了。 https://github.com/prife/rt-thread/commits/simposix 线程共享信号处理函数的。
wizardxbl
2013-01-14
这家伙很懒，什么也没写！
`[32m` 这种符号是在终端里调试方便加的颜色代码 ``` [32min rt_hw_board_init [0m[32min rt_hw_serial_init [0m[32mout rt_hw_serial_init [0m[32min rt_hw_serial_register [0m[32mout rt_hw_serial_register [0m[32min rt_serial_init [0m[32mout rt_serial_init [0m[32min rt_serial_open [0m[32mout rt_serial_open [0m[32mout rt_hw_board_init [0m-------------rt_show_version();38-------------- | / - RT - Thread Operating System / | 1.1.0 build Jan 10 2013 2006 - 2012 Copyright by rt-thread team -------------rt_system_tick_init()45-------------- -------------rt_system_object_init();51-------------- -------------rt_system_timer_init();57-------------- -------------rt_system_heap_init();63-------------- -------------rt_system_scheduler_init();71-------------- -------------rt_device_init_all();77-------------- -------------rt_application_init();84-------------- [32min rt_thread_create [0m[33m------------------ |-name |init |-entry |0x401995 (function address) |-parameter |(null) |-stack_size|0x800 |-priority |10 |-tick |20 ------------------ [0m[33m------------------ |-thread |0x629278(rt_object_allocate->thread) |-sizeof(thread) |0x8 |-sizeof(rt_thread) |0xf0 ------------------ [0m[33m------------------ |-stack_start |0x629380(rt_malloc(stack_size)->stack_start) ------------------ [0m-->in _rt_thread_init [init] [33m------------------ |-thread |0x629278 |-name |init |-entry |0x401995 |-parameter |(null) |-stack_start |0x629380 |-stack_size |0x800 |-priority |10 |-tick |20 ------------------ [0m[32mthread->stack_addr:0x6292c0 (addr) [0m[32mthread->stack_addr:0x629380 (data) [0mwill call rt_hw_stack_init [32m------------------ |-thread->sp |0x629b2c ------------------ [0m<--out _rt_thread_init [init] [32min rt_thread_create [0mwill rt_thread_startup(0x629278) in rt_thread_startup(0x629278) [32min rt_thread_resume [0m[32mout rt_thread_resume [0m-----finish creat init and startup----------------------------------------------- [32min rt_thread_create [0m[33m------------------ |-name |test1 |-entry |0x4019cb (function address) |-parameter |(null) |-stack_size|0x800 |-priority |10 |-tick |20 ------------------ [0m[33m------------------ |-thread |0x629b98(rt_object_allocate->thread) |-sizeof(thread) |0x8 |-sizeof(rt_thread) |0xf0 ------------------ [0mpid <9868a700> stop on sem... [33m------------------ |-stack_start |0x629ca0(rt_malloc(stack_size)->stack_start) ------------------ [0m-->in _rt_thread_init [test1] [33m------------------ |-thread |0x629b98 |-name |test1 |-entry |0x4019cb |-parameter |(null) |-stack_start |0x629ca0 |-stack_size |0x800 |-priority |10 |-tick |20 ------------------ [0m[32mthread->stack_addr:0x629be0 (addr) [0m[32mthread->stack_addr:0x629ca0 (data) [0mwill call rt_hw_stack_init [32m------------------ |-thread->sp |0x62a44c ------------------ [0m<--out _rt_thread_init [test1] [32min rt_thread_create [0mwill rt_thread_startup(0x629b98) pid <97e89700> stop on sem... in rt_thread_startup(0x629b98) [32min rt_thread_resume [0m[32mout rt_thread_resume [0m-----finish create test1 and startup----------------------------------------------- [32min rt_thread_create [0m[33m------------------ |-name |test2 |-entry |0x401a28 (function address) |-parameter |(null) |-stack_size|0x800 |-priority |20 |-tick |20 ------------------ [0m[33m------------------ |-thread |0x62a4b8(rt_object_allocate->thread) |-sizeof(thread) |0x8 |-sizeof(rt_thread) |0xf0 ------------------ [0m[33m------------------ |-stack_start |0x62a5c0(rt_malloc(stack_size)->stack_start) ------------------ [0m-->in _rt_thread_init [test2] [33m------------------ |-thread |0x62a4b8 |-name |test2 |-entry |0x401a28 |-parameter |(null) |-stack_start |0x62a5c0 |-stack_size |0x800 |-priority |20 |-tick |20 ------------------ [0m[32mthread->stack_addr:0x62a500 (addr) [0m[32mthread->stack_addr:0x62a5c0 (data) [0mwill call rt_hw_stack_init [32m------------------ |-thread->sp |0x62ad6c ------------------ [0mpid <97688700> stop on sem... <--out _rt_thread_init [test2] [32min rt_thread_create [0mwill rt_thread_startup(0x62a4b8) in rt_thread_startup(0x62a4b8) [32min rt_thread_resume [0m[32mout rt_thread_resume [0m------finish craete test2 and startup---------------------------------------------- -------------rt_system_timer_thread_init();90-------------- [32min rt_thread_init[timer] [0mthread[0x68d5e0] struct rt_thread[0x8] [32mout rt_thread_init [0m-->in _rt_thread_init [timer] [33m------------------ |-thread |0x68d5e0 |-name |timer |-entry |0x406566 |-parameter |(null) |-stack_start |0x68d6d0 |-stack_size |0x200 |-priority |4 |-tick |10 ------------------ [0m[32mthread->stack_addr:0x68d628 (addr) [0m[32mthread->stack_addr:0x68d6d0 (data) [0mwill call rt_hw_stack_init [32m------------------ |-thread->sp |0x68d87c ------------------ [0mpid <96e87700> stop on sem... <--out _rt_thread_init [timer] in rt_thread_startup(0x68d5e0) [32min rt_thread_resume [0m[32mout rt_thread_resume [0m-------------rt_thread_idle_init();96-------------- [32min rt_thread_init[tidle] [0mthread[0x68d280] struct rt_thread[0x8] [32mout rt_thread_init [0m-->in _rt_thread_init [tidle] [33m------------------ |-thread |0x68d280 |-name |tidle |-entry |0x4022e2 |-parameter |(null) |-stack_start |0x68d370 |-stack_size |0x100 |-priority |31 |-tick |32 ------------------ [0m[32mthread->stack_addr:0x68d2c8 (addr) [0m[32mthread->stack_addr:0x68d370 (data) [0mwill call rt_hw_stack_init [32m------------------ |-thread->sp |0x68d41c ------------------ [0m<--out _rt_thread_init [tidle] in rt_thread_startup(0x68d280) [32min rt_thread_resume [0m[32mout rt_thread_resume [0mpid <96686700> stop on sem... -------------rt_system_scheduler_start();102-------------- in rt_system_scheduler_start() rt_thread_ready_priority_group = 0x80100410 number = 4 highest_ready_priority = 4 [33m------------------ |-name | timer ------------------- [0mpid <990af700> mainthread start system tick! pid <96e87700> tid <timer> starts... [42;37min rt_thread_timer_entry[0m[32m [0m[32min rt_thread_suspend [0m[33mthread suspend: timer [0m[32mout rt_thread_suspend [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[0]switch from priority#10 thread:timer [0m[36m[0]switch to priority#10 thread:init [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mfrome_thread->sp:0x68d87c [0m[36mto_thread->sp:0x629b2c [0mconswitch: P in pid<96e87700> ,suspend <timer>, resume <(null)>! pid <9868a700> tid <init> starts... in rt_init_thread_entry out rt_init_thread_entry pid <9868a700> tid <init> exit... [32min rt_thread_exit [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[0]switch from priority#10 thread:init [0m[36m[0]switch to priority#10 thread:test1 [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mfrome_thread->sp:0x629b2c [0m[36mto_thread->sp:0x62a44c [0mconswitch: P in pid<9868a700> ,suspend <init>, resume <(null)>! pid <97e89700> tid <test1> starts... in rt_test1_thread_entry thread-01:0 [32mint rt_thread_sleep [0m[32min rt_thread_suspend [0m[33mthread suspend: test1 [0m[32mout rt_thread_suspend [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[0]switch from priority#20 thread:test1 [0m[36m[0]switch to priority#20 thread:test2 [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mfrome_thread->sp:0x62a44c [0m[36mto_thread->sp:0x62ad6c [0mconswitch: P in pid<97e89700> ,suspend <test1>, resume <(null)>! pid <97688700> tid <test2> starts... thread-02:0 [32mint rt_thread_sleep [0m[32min rt_thread_suspend [0m[33mthread suspend: test2 [0m[32mout rt_thread_suspend [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[0]switch from priority#31 thread:test2 [0m[36m[0]switch to priority#31 thread:tidle [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mfrome_thread->sp:0x62ad6c [0m[36mto_thread->sp:0x68d41c [0mconswitch: P in pid<97688700> ,suspend <test2>, resume <(null)>! pid <96686700> tid <tidle> starts... pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! [32min rt_thread_timeout [0m[32m---->[test2] remove frome suspend list insert to ready list [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[1]switch from priority#20 thread:tidle [0m[36m[1]switch to priority#20 thread:test2 [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mswitch in interrupt [0m[36m<-----out rt_schedule [0m[32mout rt_thread_timeout [0m[32min rt_thread_timeout [0m[32m---->[test1] remove frome suspend list insert to ready list [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[1]switch from priority#10 thread:test2 [0m[36m[1]switch to priority#10 thread:test1 [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mswitch in interrupt [0m[36m<-----out rt_schedule [0m[32mout rt_thread_timeout [0mconswitch: S in pid<990af700> ,suspend <test2>, resume <test1>! signal: SIGSUSPEND suspend <test2> conswitch: S in pid<990af700> ,suspend <test2>, resume <test1>! isr: systick leave! pid <990af700> signal: SIGALRM leave! [36m<-----out rt_schedule [0m[32mout rt_thread_sleep [0mthread-01:1 [32mint rt_thread_sleep [0m[32min rt_thread_suspend [0m[33mthread suspend: test1 [0m[32mout rt_thread_suspend [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[0]switch from priority#20 thread:test1 [0m[36m[0]switch to priority#20 thread:test2 [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mfrome_thread->sp:0x62a44c [0m[36mto_thread->sp:0x62ad6c [0mconswitch: P in pid<97e89700> ,suspend <test1>, resume <test2>! [36m<-----out rt_schedule [0m[32mout rt_thread_sleep [0mthread-01:2 [32mint rt_thread_sleep [0m[32min rt_thread_suspend [0m[33mthread suspend: test2 [0m[32mout rt_thread_suspend [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[0]switch from priority#31 thread:test2 [0m[36m[0]switch to priority#31 thread:tidle [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mfrome_thread->sp:0x62ad6c [0m[36mto_thread->sp:0x68d41c [0mconswitch: P in pid<97e89700> ,suspend <test2>, resume <tidle>! signal: SIGSUSPEND resume <test2> signal: SIGSUSPEND suspend <test2> pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! [32min rt_thread_timeout [0m[32m---->[test2] remove frome suspend list insert to ready list [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[1]switch from priority#20 thread:tidle [0m[36m[1]switch to priority#20 thread:test2 [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mswitch in interrupt [0m[36m<-----out rt_schedule [0m[32mout rt_thread_timeout [0m[32min rt_thread_timeout [0m[32m---->[test1] remove frome suspend list insert to ready list [0m[36m----->in rt_schedule [0m[36mrt_scheduler_lock_nest:0 [0m[36m[1]switch from priority#10 thread:test2 [0m[36m[1]switch to priority#10 thread:test1 [0m[32min _rt_scheduler_stack_check [0m[32mout _rt_scheduler_stack_check [0m[36mswitch in interrupt [0m[36m<-----out rt_schedule [0m[32mout rt_thread_timeout [0mconswitch: S in pid<990af700> ,suspend <test2>, resume <test1>! conswitch: S in pid<990af700> ,suspend <test2>, resume <test1>! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <990af700> signal: SIGALRM leave! pid <990af700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! ```
wizardxbl
2013-01-15
这家伙很懒，什么也没写！
``` @wizard:~/git/rt-thread/rt-thread-prife/bsp/simlinux$ ./rtthread | / - RT - Thread Operating System / | 1.2.0 build Jan 15 2013 2006 - 2012 Copyright by rt-thread team pid <fc48c700> stop on sem... pid <fd630700> mainthread pid <fb48a700> stop on sem... start system tick! pid <fc48c700> tid <init> starts... pid <fbc8b700> stop on sem... pid <fac89700> stop on sem... pid <fc48c700> tid <init> exit... conswitch: P in pid<fc48c700> ,suspend <init>, resume <(null)>! pid <fac89700> tid <tshell> starts... finsh>>conswitch: P in pid<fac89700> ,suspend <tshell>, resume <(null)>! pid <fbc8b700> tid <test> starts... hello, world conswitch: P in pid<fbc8b700> ,suspend <test>, resume <(null)>! pid <fb48a700> tid <tidle> starts... pid <fd630700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <fd630700> signal: SIGALRM leave! pid <fd630700> signal: SIGALRM enter! isr: systick enter! conswitch: S in pid<fd630700> ,suspend <tidle>, resume <test>! signal: SIGSUSPEND suspend <tidle> hello, world isr: systick leave! pid <fd630700> signal: SIGALRM leave! conswitch: P in pid<fbc8b700> ,suspend <test>, resume <tidle>! signal: SIGSUSPEND resume <tidle> pid <fd630700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <fd630700> signal: SIGALRM leave! pid <fd630700> signal: SIGALRM enter! isr: systick enter! conswitch: S in pid<fd630700> ,suspend <tidle>, resume <test>! isr: systick leave! pid <fd630700> signal: SIGALRM leave! signal: SIGSUSPEND suspend <tidle> hello, world conswitch: P in pid<fbc8b700> ,suspend <test>, resume <tidle>! signal: SIGSUSPEND resume <tidle> conswitch: S in pid<fcc8d700> ,suspend <tidle>, resume <tshell>! finsh>>signal: SIGSUSPEND suspend <tidle> conswitch: P in pid<fac89700> ,suspend <tshell>, resume <tidle>! signal: SIGSUSPEND resume <tidle> pid <fd630700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <fd630700> signal: SIGALRM leave! conswitch: S in pid<fcc8d700> ,suspend <tidle>, resume <tshell>! signal: SIGSUSPEND suspend <tidle> aconswitch: P in pid<fac89700> ,suspend <tshell>, resume <tidle>! signal: SIGSUSPEND resume <tidle> conswitch: S in pid<fcc8d700> ,suspend <tidle>, resume <tshell>! signal: SIGSUSPEND suspend <tidle> ``` 段错误
wizardxbl
2013-01-15
这家伙很懒，什么也没写！
``` | / - RT - Thread Operating System / | 1.2.0 build Jan 15 2013 2006 - 2012 Copyright by rt-thread team [New Thread 0x7ffff6e37700 (LWP 3839)] pid <f6e37700> stop on sem... [New Thread 0x7ffff6636700 (LWP 3840)] pid <f6636700> stop on sem... [New Thread 0x7ffff5e35700 (LWP 3841)] pid <f7fda700> mainthread pid <f5e35700> stop on sem... start system tick! pid <f6e37700> tid <init> starts... [New Thread 0x7ffff5634700 (LWP 3842)] pid <f6e37700> tid <init> exit... conswitch: P in pid<f6e37700> ,suspend <init>, resume <(null)>! pid <f5634700> stop on sem... pid <f5634700> tid <tshell> starts... finsh>>conswitch: P in pid<f5634700> ,suspend <tshell>, resume <(null)>! pid <f6636700> tid <test> starts... hello, world conswitch: P in pid<f6636700> ,suspend <test>, resume <(null)>! pid <f5e35700> tid <tidle> starts... pid <f7fda700> signal: SIGALRM enter! isr: systick enter! isr: systick leave! pid <f7fda700> signal: SIGALRM leave! conswitch: S in pid<f7638700> ,suspend <tidle>, resume <tshell>! aconswitch: P in pid<f5634700> ,suspend <tshell>, resume <tidle>! signal: SIGSUSPEND suspend <tshell> pid <f7fda700> signal: SIGALRM enter! isr: systick enter! conswitch: S in pid<f7fda700> ,suspend <tidle>, resume <test>! isr: systick leave! pid <f7fda700> signal: SIGALRM leave! hello, world conswitch: P in pid<f6636700> ,suspend <test>, resume <tidle>! conswitch: S in pid<f7638700> ,suspend <tidle>, resume <tshell>! Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7ffff5634700 (LWP 3842)] 0x00000000004117e8 in strcmp (s1=0x0, s2=0x7ffff5633af0 "a") at /home/yangyang/git/rt-thread/rt-thread/components/finsh/shell.c:42 42 /home/yangyang/git/rt-thread/rt-thread/components/finsh/shell.c: 没有那个文件或目录. in /home/yangyang/git/rt-thread/rt-thread/components/finsh/shell.c (gdb) ```
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