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Furquan Shaikh 3c3a0fa84c xcompile: Add CROSS_COMPILE_* variable
Add CROSS_COMPILE_* variable that can be passed to third-party
component compilations.

BUG=chrome-os-partner:40414
BRANCH=None
TEST=CROSS_COMPILE_* variable is passed in correctly.

Change-Id: I053325524601adf76ea35f7e74811fbc1c31781e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: c07bd66e25900d064d6c69bddada67112ba5f183
Original-Change-Id: I3e4a5262acd84830205f64ba9a935974dd36ebbd
Original-Signed-off-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/272372
Original-Tested-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Original-Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/10306
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
2015-05-27 08:20:41 +02:00
3rdparty 3rdparty/blobs: Move submodule marker forward 2015-05-13 22:55:50 +02:00
Documentation Remove address from GPLv2 headers 2015-05-21 20:50:25 +02:00
payloads Remove address from GPLv2 headers 2015-05-21 20:50:25 +02:00
src veyron_brain: Remove unused USB GPIOs 2015-05-27 08:20:34 +02:00
util xcompile: Add CROSS_COMPILE_* variable 2015-05-27 08:20:41 +02:00
.gitignore gitignore: Have multiple crossgcc versions 2015-05-25 21:26:02 +02:00
.gitmodules 3rdparty/vboot: Add vboot 2015-05-05 22:49:34 +02:00
.gitreview add .gitreview 2012-11-01 23:13:39 +01:00
COPYING update license template. 2006-08-12 22:03:36 +00:00
MAINTAINERS MAINTAINERS: grab build system responsibility 2015-05-22 22:47:03 +02:00
Makefile make: support absolute and relative obj= specifications 2015-05-08 19:47:11 +02:00
Makefile.inc build system: drop generic util/ %.c -> %.o rule 2015-05-25 18:05:06 +02:00
README Update README with newer version of the text from the web page 2011-06-15 10:16:33 +02:00
toolchain.inc build system: only query the compiler runtime's location once 2015-05-26 08:25:50 +02:00

README

-------------------------------------------------------------------------------
coreboot README
-------------------------------------------------------------------------------

coreboot is a Free Software project aimed at replacing the proprietary BIOS
(firmware) found in most computers.  coreboot performs a little bit of
hardware initialization and then executes additional boot logic, called a
payload.

With the separation of hardware initialization and later boot logic,
coreboot can scale from specialized applications that run directly
firmware, run operating systems in flash, load custom
bootloaders, or implement firmware standards, like PC BIOS services or
UEFI. This allows for systems to only include the features necessary
in the target application, reducing the amount of code and flash space
required.

coreboot was formerly known as LinuxBIOS.


Payloads
--------

After the basic initialization of the hardware has been performed, any
desired "payload" can be started by coreboot.

See http://www.coreboot.org/Payloads for a list of supported payloads.


Supported Hardware
------------------

coreboot supports a wide range of chipsets, devices, and mainboards.

For details please consult:

 * http://www.coreboot.org/Supported_Motherboards
 * http://www.coreboot.org/Supported_Chipsets_and_Devices


Build Requirements
------------------

 * gcc / g++
 * make

Optional:

 * doxygen (for generating/viewing documentation)
 * iasl (for targets with ACPI support)
 * gdb (for better debugging facilities on some targets)
 * ncurses (for 'make menuconfig')
 * flex and bison (for regenerating parsers)


Building coreboot
-----------------

Please consult http://www.coreboot.org/Build_HOWTO for details.


Testing coreboot Without Modifying Your Hardware
------------------------------------------------

If you want to test coreboot without any risks before you really decide
to use it on your hardware, you can use the QEMU system emulator to run
coreboot virtually in QEMU.

Please see http://www.coreboot.org/QEMU for details.


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

Further details on the project, a FAQ, many HOWTOs, news, development
guidelines and more can be found on the coreboot website:

  http://www.coreboot.org

You can contact us directly on the coreboot mailing list:

  http://www.coreboot.org/Mailinglist


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

The copyright on coreboot is owned by quite a large number of individual
developers and companies. Please check the individual source files for details.

coreboot is licensed under the terms of the GNU General Public License (GPL).
Some files are licensed under the "GPL (version 2, or any later version)",
and some files are licensed under the "GPL, version 2". For some parts, which
were derived from other projects, other (GPL-compatible) licenses may apply.
Please check the individual source files for details.

This makes the resulting coreboot images licensed under the GPL, version 2.