I got some evaluation board with uC STM32F405RG , this micro has ARM Cortext M4 core . Please find reference to the uC : http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1577/LN1035/PF252144# I'm using also arm-none-eabi toolchain for linux from below site: https://launchpad.net/gcc-arm-embedded After compiling and linking some project I've noticed that linker puts extra padding
我得到了一些带有uC STM32F405RG ,这款微型ARM Cortext M4 core具有ARM Cortext M4 core 。 请参考uC: http://www.st.com/web/catalog/mmc/FM141/SC1169/SS1577/LN1035/PF252144# 我也从下面的站点使用arm-none-eabi工具链for linux: https://launchpad.net/gcc-arm-embedded 编译和链接一些项目后,我注意到链接器在存储在.bss部分的全局变量之间放置了额外的填充字节。 请从地图文件中找到简短的片段: .bss.var
I am currently writing an application (very simple and basic hello world program in C) on a 64-bit Linux machine. I've compiled by application using an ARM embedded gcc toolchain by Linero to cross compile the application onto my board. For info, I'm using a FOX G20 V board with an ATMEL AT91SAM9G20 processor. So, I've compiled my application using: arm-none-eabi-gcc while adding
我目前正在64位Linux机器上编写一个应用程序(非常简单和基本的Hello World程序)。 我使用Linero的ARM嵌入式gcc工具链通过应用程序进行编译,将应用程序交叉编译到我的电路板上。 有关信息,我使用带ATMEL AT91SAM9G20处理器的FOX G20 V板。 所以,我使用arm-none-eabi-gcc编译了我的应用程序,同时添加了几个允许使用标准C函数(如printf等)的选项。 这编译成功,我能够获得二进制文件,准备加载到我的板上。 因此,下
How can I print all global variables/local variables? Is that possible in gdb? Type info variables to list "All global and static variable names". Type info locals to list "Local variables of current stack frame" (names and values), including static variables in that function. Type info args to list "Arguments of the current stack frame" (names and values).
我怎样才能打印所有的全局变量/局部变量? 这在gdb中可能吗? 输入info variables以列出“所有全局和静态变量名称”。 输入info locals以列出“当前堆栈帧的局部变量”(名称和值),包括该函数中的静态变量。 输入info args列出“当前栈帧的参数”(名称和值)。 如果你想查看调用函数的局部变量,请在info locals之前使用select-frame 例如: (gdb) bt #0 0xfec3c0b5 in _lwp_kill () from /lib/libc.so.1 #1 0xfec36f3
I'm currently working on a ASP.NET MVC web site, and I've come up to a point where I need to integrate a database into the website. Normally I would simply add the appropriate connection string to the Web.config file: <add name="MainDB" connectionString="Server=localhost; Database=TopSecretData; User Id=Joe; password=password" providerName="System.Data.SqlClient" /> But
我目前正在开发一个ASP.NET MVC网站,并且我已经到了需要将数据库集成到网站中的地步。 通常我只是简单地将相应的连接字符串添加到Web.config文件中: <add name="MainDB" connectionString="Server=localhost; Database=TopSecretData; User Id=Joe; password=password" providerName="System.Data.SqlClient" /> 但是,如果我将我的用户ID和密码直接放在Web.config ,尤其是在源代码控制之下,那么显然存在
I'm writing a device driver these days. User process get a virtual address through mmap and mapped with a physical address with remap_pfn_range. Now I need to implement the .access function in vm_operations_struct in kernel to get the mapped memory of the virtual address passed by user thread, which I met problem. int vm_access(struct vm_area_struct *vma, unsigned long addr, void *buf, in
我正在写一个设备驱动程序。 用户进程通过mmap获取虚拟地址,并通过remap_pfn_range与物理地址映射。 现在我需要在内核的vm_operations_struct中实现.access函数来获取用户线程传递的虚拟地址的映射内存,这是我遇到的问题。 int vm_access(struct vm_area_struct *vma, unsigned long addr, void *buf, int len, int write)我需要复制addr中的数据,这是由mmap分配的虚拟地址并映射到物理地址, BUF。 我试过copy_from_use
This is probably more of a problem with my lack of C knowledge, but I'm hoping someone might be able to offer a possible solution. In a nutshell, I'm trying to read a struct that is stored in memory, and I have it's physical memory address. Also this is being done on a 64-bit Linux system (Debian (Wheezy) Kernel 3.6.6), and I'd like to use C as the language. For example the cu
这可能是我缺乏C知识的更多问题,但我希望有人能够提供可能的解决方案。 简而言之,我试图读取存储在内存中的结构,并且我有它的物理内存地址。 这也是在64位Linux系统(Debian(Wheezy)Kernel 3.6.6)上完成的,我想用C语言。 例如,所讨论的结构体的当前地址是物理地址:0x3f5e16000 现在我最初尝试通过使用指向/ dev / mem的指针访问此地址。 但是,我从那以后就知道,不允许访问任何大于1024MB的地址,并且我在var /
I have a setup with 2GB of memory and I would like to map 1GB (or more) of physical memory into user space virtual address. It is in theory possible since with 32bits setup, 3GB of virtual address is available to user land apps. I updated the kernel command line with the following parameters: mem=1G memmap=1G$1G to force the kernel to see 1GB of RAM and to reserve the last 1GB. I have my cus
我有一个2GB内存的设置,我想将1GB(或更多)的物理内存映射到用户空间虚拟地址。 理论上可以使用32位设置,3GB的虚拟地址可用于用户登陆应用程序。 我使用以下参数更新了内核命令行:mem = 1G memmap = 1G $ 1G强制内核查看1GB内存并保留最后1GB。 我有我的自定义驱动程序,它将处理用户空间mmap()调用,并使用函数remap_pfn_range()将物理地址0x40000000(1G)映射到用户空间地址。 但是该函数会在remap_pte_range(
Recently I've picked up one of my old projects and restarted it, pretty much from scratch. I've been sick for awhile, so I've had time to crack down hard and implement tons of functionality. However one thing that I feel would be a good idea to implement is module loading. I want to do kernel mode dynamic loading of modules. The word modules is a bit ambiguous, the correct term w
最近我选择了一个旧项目并重新启动它,几乎从零开始。 我已经病了一段时间,所以我有时间严厉打击并实施大量功能。 然而,我认为有一件事是实现模块加载的好主意。 我想做内核模式动态加载模块。 单词模块有点模棱两可,正确的术语只是加载库,例如内核模式驱动程序的C库的最小实现或IRQ 0和1上的PIT和键盘等标准事物。 我试图实现的方法有点自持, 在内核将加载的模块方面,内核本身将使用它来进入用户模式 。 举个例
I'm just beginning to study Ember.js and SPA's. I have a background in ASP.Net MVC/C#/Razor. How does authentication work? In a regular website I just use an Oauth provider, and when it comes back with authenticated info, create a forms auth ticket. I haven't found any good tuts/articles covering auth... Particularly on ASP.Net. I can't wait to really start digging into em
我刚开始学习Ember.js和SPA。 我在ASP.Net MVC / C#/ Razor中有一个背景。 认证如何工作? 在常规网站中,我只使用Oauth提供程序,当它返回经过身份验证的信息时,请创建表单身份验证票证。 我还没有找到任何关于auth的好内容/文章......特别是在ASP.Net上。 我迫不及待地想开始挖掘ember.js,但我知道这对我来说从一开始就很重要。 谢谢! 一般来说,在大多数Web应用程序中,Ember应用程序中的身份验证与身份验证
Hi Stack Overflow members, I'm a newbie to C# programming. I am developing a basic camera streaming and still capture application. Once user takes still, I will be displaying it on overlay using VMR9's bitmap mixing concept. What I did? I am making use of C# direct show library from here First I get all required filters interfaces. Find the attached capture device. Called Rend
嗨堆栈溢出成员, 我是C#编程的新手。 我正在开发基本的照相机流媒体并仍然捕获应用程序。 一旦用户静止,我将使用VMR9的位图混合概念在叠加层上显示它。 我做了什么? 我正在使用这里的C#直接显示库 首先我得到所有必需的过滤器接口。 找到附加的捕捉设备。 称为Render流与源过滤器和vmr9 PREVIEW引脚。 STILL PIN的源过滤器,采样器和空呈现器。 我有三个菜单按钮 - >静止,显示覆盖和隐藏覆盖。 我正在