genode/repos/libports
Christian Helmuth 3d4bed3374 libc: unify semantic of sleep functions
sleep(), usleep(), and nanosleep() now return immediately on
zero-timeout. Also, non-zero timeouts sleep at least 1 ms (the current
minimal timeout in libc), which compensates rounding errors.

Issue #3550
2020-02-10 14:21:47 +01:00
..
doc tool: remove deprecated 'make prepare' mechanism 2016-03-17 17:02:04 +01:00
include Remove unused/redundant longlong.h 2020-01-03 14:21:41 +01:00
lib mesa: enable ARM-64 port 2020-02-04 16:10:28 +01:00
ports libports: update gcov port 2019-11-19 14:54:12 +01:00
recipes mesa: enable ARM-64 port 2020-02-04 16:10:28 +01:00
run Use ram-block in libc vfs tests on Rpi3 2019-12-19 17:01:42 +01:00
src libc: unify semantic of sleep functions 2020-02-10 14:21:47 +01:00
README README update 2016-08-30 17:24:00 +02:00

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.