diff options
Diffstat (limited to 'docs/customize-libc-config.txt')
-rw-r--r-- | docs/customize-libc-config.txt | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/docs/customize-libc-config.txt b/docs/customize-libc-config.txt new file mode 100644 index 000000000..075a272a0 --- /dev/null +++ b/docs/customize-libc-config.txt @@ -0,0 +1,33 @@ +// -*- mode:doc; -*- +// vim: set syntax=asciidoc: + +[[libc-custom]] +Customizing the libc configuration +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Just like xref:busybox-custom[BusyBox], http://www.uclibc.org/[uClibc] +offers a lot of configuration options. They allow you to select +various functionalities depending on your needs and limitations. +OpenADK chooses automatically the best configuration regarding +resulting code size, standard conformance, portability and GNU +libc compatibility. + +If you still have the requirements to change the default, regenerate +a new uClibc config from the existing one: + +---------------- + $ tar xvf dl/uClibc-x.y.z.tar.bz2 + $ cd uClibc-x.y.z && patch -p1 <../toolchain/uClibc/patches/uclibc-git*.patch + $ cp ../target/<arch>/uclibc.config .config + $ make menuconfig +---------------- + +Make all required changes. Then copy the newly created uClibc configuration back +and rebuild your targetsystem, including the toolchain components: + +---------------- + $ cp .config ../target/<arch>/uclibc.config + $ cd .. && make cleantarget && make +---------------- + +There are no customization options for GNU libc or musl available. |