Qt sysroot. so，但是 FOO. If you're debugging locally, t...

Qt sysroot. so，但是 FOO. If you're debugging locally, this is just local filesystem access; but if you are debugging remotely and have a slow connection, this can be a bit painful. Qt is a powerful cross-platform application framework used to build desktop, mobile, embedded, and IoT applications. Cross-compiling often involves setting up a toolchain (the cross-compiler and linker) and a sysroot (a snapshot of the target device's libraries and headers). conf中的那些路径来自定义qmake，但仍然没有显示sysroot的路径。 而且我认为它不能指定sysroot。 您必须在qtcreator的Compiler标志中手动设置sysroot I'm trying to change the value of QT_SYSROOT because I moved the Qt5 installation. A critical step in using Qt is configuring the build environment to match your target platform—whether you’re building for your local machine, an embedded device, or a different architecture. By mirroring the target’s filesystem, it ensures your cross-compiler uses the right headers, libraries, and configurations. MacOS Mojave Version 10. Since you don't have such a directory, you should not use sysroot at all. You can use -make examples or -make tests to also build the examples or tests that come with Qt: pyqtdeploy comprises three different executables: pyqtdeploy-sysroot, pyqtdeploy-build and pyqtdeploy itself. py which can be used to create a basic system root directory containing a Qt installation, host and target Python installations and static versions of OpenSSL, sip, PyQt5, PyQt3D, PyQtChart, PyQtDataVisualization, PyQtPurchasing and QScintilla. Currently Sysroot是嵌入式Qt应用程序构建的基础，它包含了构建和运行Qt应用程序所需的文件和目录。使用Yocto项目创建Sysroot的方法包括安装工具链、创建构建目录、创建配置文件、初始化构建系统、编译根文件系统和安装根文件系统。为了使用Sysroot构建Qt应用程序，需要设置QTDIR环境变量指向Sysroot的位置 in conclusion, when build arm target qt tools on x86 host, I want sysroot be set to /mnt (where target root is mounted), and when build apps on arm target, I want sysroot be set to /. Hi All, After succesfully building Qt 5. : QtCreator中的Sysroot的含义及坑，程序员大本营，技术文章内容聚合第一站。 QMAKE_XSPEC:linux-oe-g++ QMAKE_VERSION:3. So i'm pretty puzzled by sysroot and why is it needed? I've the vendor's SDK for my embedd 文章浏览阅读2. so 引用到它，这个时候，会先从 -rpath-link 给的路径里找。 Configuring with the -prefix option means that the Qt binaries and libraries are installed into another directory, which is /opt/Qt6 in this case. 这些文件组织在一个目录结构中，这个结构模拟了目标设备上的 / （根）文件系统——这就是 sysroot。 例如，如果你在x86架构的PC上为ARM架构的开发板编译Qt，你需要有一个包含ARM库和头文件的 sysroot。 文章浏览阅读6. In the meantime the Mercurial repository contains a Python script called build-sysroot. When configuring Qt for cross-compilation, you must specify the sysroot correctly. First, read the last paragraph here: https:/ Recent versions of gdb default sysroot to target:, which means "fetch the files from the target". In Override SysRoot, specify the path to the sysroot to use instead of the default sysroot. As sysroot I need to select tmp-glibc/sysroots-components/cortexa7t2hf-neon-vfpv4/qtbase? 设置 sysroot 是否正确 当您拥有 一整套 目标库（包括 所有 系统库）时， sysroot 应该使用。 也就是说，如果您在 eg 下拥有目标库的完整镜像 /home/mark/target/，那么您将使用 set sysroot /home/mark/target. It will download, configure and build the parts specified by each component. For better results, use a properly configured project that has the sources of the crashed application. 13. Here interstingly, I get the warnings where it cannot find the linked libraries. These contain the appropriate compiler and linker flags for a certain device, also making sure the correct EGL and OpenGL ES libraries are picked up, in case they are in a non-standard location in the sysroot. Dec 5, 2025 · Qt is a powerful cross-platform application framework used to build desktop, mobile, embedded, and IoT applications. 3k次，点赞22次，收藏24次。RK3568 Qt5. 14 (18A389). 0 support. 2 from source files. Properties are a special kind of persistent variable. I followed the tutorial in the following guide QtCreator says: Qt version is not property installed, please run make install Why? I mean, what does this error imply? What is it looking for that it doesn't find? After fixing this (hopefully!) I need to create the Kit. 4. txt或使用. In QtCreator > Options > Build & Run > Kits I selected my sysroot folder, that look like this: sysroot li Provides information about how to configure an Embedded Linux device in Qt. Dec 3, 2025 · A sysroot is the cornerstone of reliable cross-compilation for embedded devices—especially for Qt apps. conf in mkspecs dir to use the sysroot path from Qt Creator. Let's list the properties of a native Linux Qt installed in /usr/local/Qt-5. That is, if you had the complete mirror of target libraries under e. I h Hello QT experts, I am having a hard time installing the QT with cross compile toolchain for beaglebone black. I'm at a loss for the proper way to call configure and make use of prefix, extprefix, sysroot, etc. sysroot只是一个目录用来存放开发板的各种库而已。 2. 2. 8/gcc_64 QT_INSTALL_ARCHDATA:/home/***/Qt5. Examples, Tests, and Tools By default, configure only configures Qt's libraries and tools. Additionally, some devices require vendor-specific adaptation code for EGL and OpenGL ES 2. The `configure` script is Qt’s gateway to setting up this environment, and two of I'm at a loss for the proper way to call configure and make use of prefix, extprefix, sysroot, etc. /home/mark/target/, then you would use set sysroot /home/mark/target. I created Kit for the cross compiler/QT4 and have setup sysroot path in the kit. However, I can't figure Hi, I want to cross-compile an application using Qt Creator. Hi all, For a few days, I am stuck with a weird problem which prevent me to build anything with QtCreator. Sysroot is needed for cross-compiling for other devices. 这些文件组织在一个目录结构中，这个结构模拟了目标设备上的 / （根）文件系统——这就是 sysroot。 例如，如果你在x86架构的PC上为ARM架构的开发板编译Qt，你需要有一个包含ARM库和头文件的 sysroot。 文章浏览阅读2k次。源码编译时使用-sysroot指向目标板根文件系统、因为需要使用依赖库；执行完make install后，是安装在以-sysroot为根目录下的，使用qtcreator添加qmake显示安装错误；之后可以识别qt版本；接着产生一个问题；构建工程可以使用cmake就是CMakeLists. rsync will let us sync any changes we make on the Raspberry Pi with our PC and vice versa as well. 1 qmake不使用sysroot参数，它具有所有路径。 您可以通过覆盖qt. ]prefix标志的每一个组合都试图在机上安装Qt。机上没有太多的磁盘空间，所以我希望在本地 配置方法 ~$ qmake -query QT_SYSROOT: QT_INSTALL_PREFIX:/home/***/Qt5. qmake修改默认qt库路径 sudo ln -s path/to/your/qmake /usr/bin/qmake 4. 8 (same with Qt5. You can set a property in qmake as follows: The appropriate property and value should be substituted for PROPERTY and VALUE. 创建sysroot目录 ¶ 我们交叉编译的程序是部署到板卡环境运行，需要构建和板卡一样的库环境，我们需要创建一个sysroot目录， 在编译时指定了 -sysroot=dir 该逻辑目录，编译过程中需要引用的库，头文件，就到 dir/xx 目录下去找。 创建sysroot目录下面提供了几种方法： 1 、 直接复制文件到sysroot After succesfully building Qt 5. The sysroot folder will then have all the necessary files to run a system, and therefore also compile for that system. 3 Sync our sysroot We now need to sync up our sysroot folder with the system files from the Raspberry Pi. Then I sync the sysroot using rsync -avz to my computer and try to configure the Qt 5. What is "Sysroot" field on Qt Creator Debug -> Start Debugging -> Start And Debugto Remote Application ? 文章浏览阅读551次，点赞7次，收藏5次。那么QtCreator的代码编辑器就能识别到这些头文件了，也就不会报错了。其实不加也能编译成功的，因为编译靠得是Makefile，而Makfefile中有相关的路径设置。注意：这些报错只是代码编辑器的报错，并不是编译时的报错，我实测过，不解决这个问题，也能成功 Building Qt for a given device requires a toolchain and a sysroot. According to the documentation I should be able to do that. So here's only a partial answer: -prefix tried and proven way to say /usr/lib instead of /usr/local/lib or similar for the entire installation of Qt when Qt is built for the platform it is currently running on (typical for desktop) -sysroot /path intends to build Qt for a system which isn't installed Nov 24, 2020 · 文章浏览阅读6. This option is useful when debugging with gdbserver. 0/gcc_64/lib中。运行Ubuntu 20. QT笔记--嵌入式QT交叉编译与移植 (含OpenGL ES2)，代码先锋网，一个为软件开发程序员提供代码片段和技术文章聚合的网站。 Hi @jsulm ! i'm trying to set my Qt Creator (3. I am using MacOs and Qt 5. You can retrieve this information back from qmake as follows: This information will b Apr 4, 2016 · These are options that are used when building embedded platforms. Attach to the latest core file On Linux systems, Qt Creator uses the coredumpctl command provided by the systemd crash handling to get core files. 5. Up to now I used an envir @embdev Hi! Where did you put the sysroot? What sysroot is it and for which device? Where did you get it from? If you're developing for the desktop you don't need any sysroot. 04和QtCreator的Dev机器。Qt库被安装到/home/mark/Qt/6. 3 for ARM64 I stumbled upon an issue in Qt Creator regarding the sysroot option for kit configurations. 2 in Qt Creator, with a custom build of LLVM / clang and a custom sysroot. toml file. 04的目标机器。Qt库被安装到/home/user 1. 我正在使用QT和嵌入式设备，在许多文档项目( )中，他们都在谈论sysroot。我已经在网上搜索过了，但是我找不到任何关于sysroot是什么的东西。不过，我有一个交叉编译器工具链。什么是sysroot，如何创建sysroot？ 我正在使用QT和嵌入式设备，在许多文档项目( )中，他们都在谈论sysroot。我已经在网上搜索过了，但是我找不到任何关于sysroot是什么的东西。不过，我有一个交叉编译器工具链。什么是sysroot，如何创建sysroot？ what I'm doing is an app that will run on both Raspberry Pi and on desktop - linux also so I can't use win32 { my stuff here } or linux { also other stuff h 使用-prefix -extprefix和-hostprefix选项交叉编译Qt5的正确方法是什么？我的手臂板有sysroot dir。我在交叉编译Qt for ARM方面没有问题，除了一个--我不知道如何在我的主机上指定到目录的安装路径(不是whitin sysroot)。-[. I want to modify the qmake. so 本身是需要 BAR. qmake has a system for persistent configuration, which allows you to set a property in qmake once, and query it each time qmake is invoked. pro file? I would like to specify library path on the target using the sysroot, e. Here is my situation (paths are shortened a bit to make this easier to read): I have a sysroot in /home/steve 文章浏览阅读1. . I always end up with a misconfigured system. The `configure` script is Qt’s gateway to setting up this environment, and two of I set up a cross-compile environment for Qt5. Currently I'm trying to cross compile my Qt application against arm64 using the configured kit. 12. Mistakes in these areas are usually the source of problems Dear Developer, I want to understand significance of – sysroot option while configuring QT5. pyqtdeploy-sysroot is a command line tool that creates a target-specific sysroot directory using a sysroot. 3: 配置嵌入式 Linux 设备上的 Qt 涉及到交叉编译 (Cross-compiling)，也就是在一个平台（比如你的 PC，称为宿主系统）上为另一个平台（你的嵌入式设备，称为目标系统）生成可执行代码。在配置 Qt 嵌入式 Linux 设备时，你可能会遇到一些常见问题。下面我为你整理了一些，并提供相应的解决方案和思路 在工具包的设置 (工具链和qmake设置在那里)中，有一个名为Sysroot:的字段。 ()由于QtCreator和Qmake最终负责生成Makefile，我的问题是，这个选项在Makefile中转换为什么，以及它如何被传递到工具链？ 提出问题的动机我让Sysroot:指向~/path-to-sysroot。 ~/path-to-sysroot包含为 I cross-compiled Qt 5. 4k次，点赞3次，收藏12次。本文探讨了如何通过DESTDIR和sysroot在软件编译和运行时解决路径不一致的问题，重点讲解了如何配置sysroot来指定资源搜索路径，以及取消Shadowbuild设置的重要性。 in conclusion, when build arm target qt tools on x86 host, I want sysroot be set to /mnt (where target root is mounted), and when build apps on arm target, I want sysroot be set to /. 4. 9. Description When cross-compiling using a sysroot, the packaging step fails because the qmake install steps are installing all files in a wrong location. 2 obtaining a qmake (used for configuring a "Qt version" in QtCreator) which has hardcoded the value of QT_SYSROOT depending on the absolute path of the PC on which I've compiled Qt. 4k次，点赞3次，收藏12次。本文探讨了如何通过DESTDIR和sysroot在软件编译和运行时解决路径不一致的问题，重点讲解了如何配置sysroot来指定资源搜索路径，以及取消Shadowbuild设置的重要性。 Nov 2, 2025 · Reason The compiler/linker is looking for libraries/headers on your host machine (your PC) instead of the sysroot of the target device. The set sysroot command specifies the local directory that contains copies of target libraries in the corresponding subdirectories. Today I updated Xcode to version 10. Yes they are a royal mess. 由于您没有这样的目录，因此您根本不应该 sysroot 使用. 0 QT_VERSION:5. qmake -query 可以查看qt安装信息3. The full documentation can be found here. 1. 9移植_rk3568 qt5 Here's a friendly breakdown of common troubles and some alternative approaches with sample code examples. 12，包括搭建sysroot环境、安装依赖库、配置编译工具链等步骤。 This page explains the set sysroot command. And I have no problems with cross compiling Qt for ARM except on Everyone who has written QMake project files touched variables, functions and maybe even properties. so 的，后者你并没有指定，而是 FOO. 交叉编译QT6源码，cmake --build 阶段遇. 8/5. 场景运行Ubuntu20. Here is my s Is it correct to set sysroot The sysroot should be used when you have a complete set of target libraries (including all system ones). End when I try to build my Qt project I get an error: clang: warning: no such sysroot directory: '/Applications/ 对于交叉编译，只有配合 --sysroot 选项才能起作用。 -rpath_link （或者 -rpath-link）：这个也是用于“链接”的时候的，例如你显示指定的需要 FOO. So i'm pretty puzzled by sysroot and why is it needed? I've the vendor's SDK for my embedded Linux target board that contains the toolchain as well. 1 source for cross compiling for Beaglebone black platform. 1 enterprise) in Ubuntu 32-bit, host PC so that I can perform my developments on host for my target embedded board. g. Is sysroot accessible via some predefined environment variable in the . Alternative Method/Solution Ensure your Qt configuration and cross-compiler are correctly pointing to the target's sysroot. 0 (10A255). 8/gcc_64 QT_INSTALL_DATA:/ I'm trying to set up a custom toolchain for compiling Qt 6. A Qt installation has several built-in properties. In Qt 5, you would typically use a device spec under the qtbase/mkspecs/devices directory. pro文件，使用默认工程编译报错 What is the correct way to use -prefix -extprefix and -hostprefix options to cross compile Qt5? I have sysroot dir for my arm board. 8k次。本文介绍如何为性能较弱的Arm32设备交叉编译带QtWebEngine的Qt5. 15. 9 b3) A Hi @jsulm ! i'm trying to set my Qt Creator (3. But here what 那么 -extprefix 的意义是什么呢？ 他们是在说，如果我同时使用 -sysroot 和 -extprefix，就能把好的地方重定向到什么地方？ 我想使用 -no-gcc-sysroot 的原因是什么？ 如果我希望我的Qt库安装在" sysroot“中，为什么我不希望 gcc 使用/知道相同的sysroot呢？ Preparing the sysroot on Raspberry Pi OS with both 32-bit and 64-bit libraries To cross-compile for a system, you need to have all the system libraries and header files of the target copied into the host. rooo, oagd, abobi, rug3n, 9yniw, hclq, vbtetd, bcmogz, 5tkkg2, 1nfn,