coreboot-kgpe-d16/payloads/libpayload
Stefan Reinauer c753926a01 accidently backed out r3598. Sorry Ulf, will pay more attention next time.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3611 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-09-26 19:37:16 +00:00
..
bin fix cross compilationor libpayload / coreinfo by honoring 2008-08-07 15:22:01 +00:00
configs Add default config file to libpayload so that one can do make defconfig 2008-09-26 11:21:21 +00:00
crypto No really, _these_ should be the last occurences of CONFIG_ without 2008-08-11 17:10:58 +00:00
curses accidently backed out r3598. Sorry Ulf, will pay more attention next time. 2008-09-26 19:37:16 +00:00
drivers Use a block cursor on VGA console :-) 2008-09-26 18:40:06 +00:00
i386 Various Doxygen-related fixes in libpayload (trivial). 2008-08-31 22:10:35 +00:00
include * Add strsep (since strtok is considered obsolete) 2008-09-26 18:42:40 +00:00
lib libpayload: Add PAYLOAD_INFO macro 2008-05-27 20:06:54 +00:00
libc * Add strsep (since strtok is considered obsolete) 2008-09-26 18:42:40 +00:00
sample libpayload: Fix the putc function 2008-05-14 20:07:31 +00:00
util/kconfig 1. 2008-09-23 21:29:53 +00:00
Config.in * add keyboard layout support to libpayload 2008-09-26 18:37:26 +00:00
Doxyfile [PATCH]: Libpayload: Remove static variables from the doxygen output 2008-08-28 23:10:25 +00:00
LICENSES Document all of the external code we use in libpayload (trivial). 2008-08-11 20:34:50 +00:00
Makefile 1. 2008-09-23 21:29:53 +00:00
README Add more information to the libpayload README (trivial). 2008-08-18 18:55:33 +00:00

README

-------------------------------------------------------------------------------
libpayload README
-------------------------------------------------------------------------------

libpayload is a minimal library to support standalone payloads
that can be booted with firmware like coreboot. It handles the setup
code, and provides common C library symbols such as malloc() and printf().

Note: This is _not_ a standard library for use with an operating system,
rather it's only useful for coreboot payload development!
See http://coreboot.org for details on coreboot.


Installation
------------

 $ svn co svn://coreboot.org/repos/trunk/payloads/libpayload

 $ cd libpayload

 $ make menuconfig

 $ make

 $ sudo make install (optional, will install into /opt per default)

As libpayload is for 32bit x86 systems only, you might have to install the
32bit libgcc version, otherwise your payloads will fail to compile.
On Debian systems you'd do 'apt-get install gcc-multilib' for example.


Usage
-----

Here's an example of a very simple payload (hello.c) and how to build it:

 #include <libpayload.h>

 int main(void)
 {
     printf("Hello, world!\n");
     return 0;
 }

Building the payload using the 'lpgcc' compiler wrapper:

 $ lpgcc -o hello.elf hello.c

Please see the sample/ directory for details.


Website and Mailing List
------------------------

The main website is http://www.coreboot.org/Libpayload.

For additional information, patches, and discussions, please join the
coreboot mailing list at http://coreboot.org/Mailinglist, where most
libpayload developers are subscribed.


Copyright and License
---------------------

See LICENSES.