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BREAKS CONFIG COMPATIBILITY: This commit changes the configuration interface of the NIC router in a way that may break systems that use the component without proper adjustment! HOW TO ADJUST: At each occurrence of the '<uplink ...>' tag in a NIC router configuration replace the tag name 'uplink' with 'nic-client'. The rest of the tag stays the same. The term "uplink" for network interfaces in the router that have a NIC session client as back end was introduced in a time when Uplink sessions didn't yet exist. Now, they do and, although both an uplink and an Uplink session normally describe a network session between router and network device driver, they are based on two different service types (NIC and Uplink). This can easily cause confusion when integrating the router (the <uplink> is not related to Uplink sessions) or trying to understand its functioning (an 'Uplink' object has nothing to do with the Uplink service). Therefore, this commit introduces the more specific term "NIC client" for an interface that is based on a NIC session requested by the router. This doesn't imply any semantic changes at the NIC router. However, the commit also brings a broader update of the router's README and removes the term "downlink" that was used only in documentation to refer to interfaces backed by a NIC session provided by the router. The term was only associated with this meaning because it is the natural counterpart to an uplink. This isn't appropriate anymore as the terms for interface types have moved to a more technical level. The commit adjusts all scenarios in the basic Genode repositories properly. Fixes #4238 |
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This directory contains ports of popular 3rd-party software to Genode. Usage ----- The tool './tool/ports/prepare_port' in the toplevel directory automates the task of downloading and preparing the library source codes. You can select individual packages that have to be prepared by specifying their base names (without the version number) as command-line argument. For example, the following command prepares both the C library and the Freetype library: ! ./tool/ports/prepare_port libc freetype To compile and link against 3rd-party libraries of the 'libports' repository, you have to include the repository into the build process by appending it to the 'REPOSITORIES' declaration of your '<build-dir>/etc/build.conf' file. Under the hood -------------- For each library, there is a file contained in the 'libports/ports/' subdirectory. The file is named after the library and contains the library-specific rules for downloading the source code and installing header files. How does 'libports' relate to the other repositories? ----------------------------------------------------- Most libraries hosted in the 'libports' repository expect a complete C library, which is provided with the 'libc' package. Please do not forget to prepare the libc package when using any of the other libports packages. The libc, in turn, depends on the 'os' repository for its back end. Because the 'os' repository is the home of the dynamic linker, libraries contained in 'libports' are safe to assume the presence of the dynamic linker and, thus, should be built as shared libraries.