mirror of
https://github.com/genodelabs/genode.git
synced 2025-01-18 02:40:08 +00:00
77b0e10e88
This patch changes the unlink operation of the ram fs to defer the destruction of a file until it is no longer referenced by any VFS handle. When unlinked, the file no longer appears in the directory. But it can still be opened and accessed. With this change, a parent process of a Unix-like subsystem becomes able to pass the content of an unlinked file to a forked child process. This mechanism is required when using the 'exec' command in Tcl scripts. Another use case is the 'tmpfile()' function. Fixes #3577 |
||
|---|---|---|
| .. | ||
| doc | ||
| include | ||
| lib | ||
| ports | ||
| recipes | ||
| run | ||
| src | ||
| README | ||
This directory contains ports of 3rd-party libraries to Genode. Usage ----- The tool './tool/ports/prepare_port' in the toplevel directory automates the task of downloading and preparing the 3rd-party source codes. One can select individual ports 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 via the 'libc' port. The libc, in turn, depends on the 'os' repository for its back end.