Files
system76-coreboot/payloads/libpayload
Ulf Jordan 364317b199 Fix tinycurses color output on the VGA console.
The CGA compatible 16 color VGA text mode expects Intensity RGB color
specifications, in the order IRGB from most to least significant bit.
Curses COLOR_ macros follows ANSI X3.64/ISO 6429/ECMA-48, specifying
RGB color in the order BGR from most to least significant bit.
Consequently, it is necessary to swap the red and blue bits.

Signed-off-by: Ulf Jordan <jordan@chalmers.se>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3516 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2008-08-18 19:28:42 +00:00
..
2008-08-16 15:17:36 +00:00
2008-05-27 20:06:54 +00:00
2008-05-14 20:07:31 +00:00
2008-08-08 14:17:46 +00:00
2008-08-08 13:45:03 +00:00

-------------------------------------------------------------------------------
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.