coreboot-kgpe-d16/payloads/libpayload
Patrick Georgi cacf7234af libpayload: retire LAR support
Who knows it still?

Change-Id: If6e36569cd9a1ba3da8b3fe84264cd2a6dfd634b
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/10443
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
2015-06-08 10:21:30 +02:00
..
arch Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
bin libpayload: arch/mips: Add basic MIPS architecture support 2015-03-21 11:07:50 +01:00
configs cygnus: enable serial driver for depthcharge 2015-04-21 08:25:54 +02:00
crypto libpayload: Change CONFIG_* to CONFIG_LP_* in the kconfig. 2014-08-05 18:44:08 +02:00
curses Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
drivers Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
gdb Remove address from GPLv2 headers 2015-05-21 20:50:25 +02:00
include libpayload: retire LAR support 2015-06-08 10:21:30 +02:00
libc libpayload: retire LAR support 2015-06-08 10:21:30 +02:00
libcbfs Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
liblzma Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
libpci Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
sample Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
tests Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
util Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
Config.in libpayload: retire LAR support 2015-06-08 10:21:30 +02:00
Doxyfile
LICENSES libpayload: Introduce new Kconfig to explicitly allow GPL code 2015-01-09 07:06:27 +01:00
LICENSE_GPL libpayload: Introduce new Kconfig to explicitly allow GPL code 2015-01-09 07:06:27 +01:00
Makefile libpayload: arch/mips: Add basic MIPS architecture support 2015-03-21 11:07:50 +01:00
Makefile.inc Remove empty lines at end of file 2015-06-08 00:55:07 +02:00
README Remove empty lines at end of file 2015-06-08 00:55:07 +02:00

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
------------

 $ git clone http://review.coreboot.org/p/coreboot.git

 $ cd coreboot/payloads/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.