首先,应该初始化C堆,初始化代码如下 #include"malloc.h"#pragmaimport (__use_realtime_heap)//这个函数在rt_heap.h中声明,需要用户自己去实现,返回任意值unsigned __rt_heap_extend(unsigned size,void**block) {return0; }voidMallocInit(void) { _init_alloc(MALLOC_HEAP_ADDRESS_START,MALLOC_HEAP_ADDRES...
frame->m_flags |= CLR_RT_StackFrame::c_AppDomainTransition; frame->m_flags &= ~CLR_RT_StackFrame::c_CallerIsCompatibleForRet;//Marshal the arguments from the caller (on the eval stack) to the callee, unitialized heapblocks that//are set up by the extra blocks in CLR_RT_StackFrame::...
HRESULT CLR_RT_HeapBlock_String::CreateInstance( CLR_RT_HeapBlock& reference, LPCSTR szText, CLR_RT_Assembly* assm ) { NATIVE_PROFILE_CLR_CORE(); TINYCLR_HEADER(); CLR_RT_HeapBlock_String* str; reference.SetObjectReference(NULL); str = (CLR_RT_HeapBlock_String*)g_CLR_RT_ExecutionEngine...
rt_object_delete((rt_object_t)thread); return RT_NULL; } rt_malloc call Mem.c里的heap management function,换句话说,RTT提供了heap的dynamic管理机制。同时在thread 退出时放置到defunct的list,然后再切出current thread状态,idle这个静态的thread常驻内存,定时会回收defunct list里的僵死thread,这样有效的防止...
rtthread提供的IO设备模型分为三层 IO设备管理层:提供一组通用的IO操作:open、read、control等,连接着应用程序和底层硬件。 设备驱动框架层:rtthread对同一类外设的抽象,对不同厂家的soc提供接口。 设备驱动层:soc外设驱动,操作底层硬件。 rtthread将设备抽象成rt_device。
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https://github.com/RT-Thread/rt-thread/blob/master/components/finsh/msh.c#L654 Details Unboundedrt_sprintf()in thedirectory_delete_for_msh()function could lead to a heap buffer overflow at the marked line: staticvoiddirectory_delete_for_msh(constchar*pathname,charf,charv) ...
Lack of length check in the the dfs_nolink_path() function could lead to heap buffer overflows at the marked lines: static char *dfs_nolink_path(struct dfs_mnt **mnt, char *fullpath, int mode) { int index = 0; char *path = RT_NULL; char link_fn[DFS_PATH_MAX] = {0}; stru...
RTPEG-32 RTUSB-32 Previous Next Heap Programs linked with a run-time system need a heap. Locate parameter Name is ignored. If parameter Size is not specified or 0, RTLoc will assign all unused memory of the region to the heap after all other entities have been located. If stack and ...
这种情况会调用 rt_hw_context_switch_interrupt()函数进行上下文切换,该函数跟 CPU 架构相关,不同 CPU 架构的实现方式有差异。 中断服务程序是一种需要特别注意的运行环境,它运行在非线程的执行环境下,在这个运行环境中不能使用挂起当前线程的操作,因为当前线程并不存在。