coreboot-kgpe-d16/payloads/libpayload
T Michael Turney 0ce7f4da70 libpayload: Support herobrine
BUG=b:182963902
TEST= validated on qualcomm sc7280 developement board

Change-Id: Ic28f02cdf5c0e4c2458aee0ad7c74383c88d8874
Signed-off-by: Ravi Kumar Bokka <rbokka@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Shelley Chen <shchen@google.com>
2021-04-15 19:08:23 +00:00
..
arch payloads/libpayload/arch/arm64/mmu.c: Fix typo in comment 2021-02-05 09:40:39 +00:00
bin libpayload/lpgcc: Drop redundant linker path 2021-01-11 23:33:03 +00:00
configs libpayload: Support herobrine 2021-04-15 19:08:23 +00:00
crypto payloads: Drop unneeded empty lines 2020-09-21 16:20:57 +00:00
curses libpayload/curses: Use <stdbool.h> 2020-10-26 06:57:21 +00:00
drivers libpayload/storage: Add NVMe driver 2021-04-07 10:58:04 +00:00
gdb
include libpayload/storage: Add NVMe driver 2021-04-07 10:58:04 +00:00
libc coreboot tables: Add SPI flash memory map windows to coreboot tables 2020-12-08 22:56:09 +00:00
libcbfs
liblz4
liblzma payloads: Drop unneeded empty lines 2020-09-21 16:20:57 +00:00
libpci libpayload/libpci: Introduce device class attribute in pci_dev 2020-10-17 16:33:55 +00:00
sample libpayload: Move .xcompile into $(obj) 2021-01-01 21:30:44 +00:00
tests
.gitignore .gitignore: Split into subdirectory files 2020-10-30 07:05:27 +00:00
Doxyfile
Kconfig libpayload/keyboard: Revise scancode set and translation config 2020-12-23 03:29:32 +00:00
LICENSES
LICENSE_GPL
Makefile libpayload: Move .xcompile into $(obj) 2021-01-01 21:30:44 +00:00
Makefile.inc libpayload: Keep a copy of .config in the build dir 2021-01-01 21:31:29 +00:00
Makefile.payload libpayload: Add a Makefile for in-tree payloads 2021-02-07 16:22:45 +00:00
README

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 https://www.coreboot.org for details on coreboot.


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

 $ git clone https://review.coreboot.org/coreboot.git

 $ cd coreboot/payloads/libpayload

 $ make menuconfig

 $ make

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

On x86 systems, libpayload will always be 32-bit even if your host OS runs
in 64-bit, so you might have to install the 32-bit libgcc version.
On Debian systems you'd do 'apt-get install gcc-multilib' for example.

Run 'make distclean' before switching boards. This command will remove
your current .config file, so you need 'make menuconfig' again or
'make defconfig' in order to set up configuration. Default configuration
is based on 'configs/defconfig'. See the configs/ directory for examples
of configuration.


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 https://www.coreboot.org/Libpayload.

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


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

See LICENSES.