| commit | 8d94b36eed2a182fab008e5477a4eddc4dd282df | [log] [tgz] |
|---|---|---|
| author | Angel Pons <th3fanbus@gmail.com> | Mon Nov 02 20:35:05 2020 +0100 |
| committer | Patrick Georgi <pgeorgi@google.com> | Wed Apr 21 08:58:31 2021 +0000 |
| tree | 3872a97b9593edc5fe91312f8f95453674dd9012 | |
| parent | 7ac11ca3d64615d1c77e48d31b1730bd67582168 [diff] |
option.h: Introduce {get,set}_int_option() functions
The {get,set}_option() functions are not type-safe: they take a pointer
to void, without an associated length/size. Moreover, cmos_get_option()
does not always fully initialise the destination value (it has no means
to know how large it is), which can cause issues if the caller does not
initialise the value beforehand.
The idea behind this patch series is to replace the current type-unsafe
API with a type-safe equivalent, and ultimately decouple the option API
from CMOS. This would allow using different storage mechanisms with the
same option system, maximising flexibility.
Most, if not all users of get_option() have a value to fall back to, in
case the option could not be read. Thus, get_int_option() takes a value
to fall back to, which avoids repeating the same logic on call-sites.
These new functions will be put to use in subsequent commits.
Change-Id: I6bbc51135216f34518cfd05c3dc90fb68404c1cc
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47107
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
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.
After the basic initialization of the hardware has been performed, any desired "payload" can be started by coreboot.
See https://www.coreboot.org/Payloads for a list of supported payloads.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).Optional:
make menuconfig and make nconfig)Please consult https://www.coreboot.org/Build_HOWTO for details.
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 https://www.coreboot.org/QEMU for details.
Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:
You can contact us directly on the coreboot mailing list:
https://www.coreboot.org/Mailinglist
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.