This is useful for e.g. HP EliteBook 2560p.

In coreboot config, enable e.g. (for lbmk blobutil):

CONFIG_KBC1126_FW1="../../ec/hp2560p/ec.bin.fw1"
CONFIG_KBC1126_FW2="../../ec/hp2560p/ec.bin.fw2"

In resources/blobs/sources you would have these entries:

EC_url
EC_url_bkup
EC_hash

Reviewed-on: https://codeberg.org/libreboot/lbmk/pulls/8

In cases where the vendor update file contains a full
ROM image encompassing IFD+GbE+ME+BIOS, blobutil was
saving the *entire* ROM containing those, as me.bin.
For example, if it's an 8MB ROM, blobutil would create
a me.bin file that is actually the whole ROM containing:

* Vendor IFD region
* Vendor GbE(if it has one)
* Vendor ME region
* Vendor BIOS region

This fix tries with -M and -O first. In this combination,
me_cleaner shall extract me.bin (neutered) and save it.

If that fails, then the normal method with just -O is
tried, which by this logic would always be a lone ME
image if it succeeds.

I tested downloading ME images on existing boards with
this, and it didn't break them, and this fixes the bug.

This is done for HP 8200 SFF which Riku_V is adding to
lbmk. I'm on IRC with Riku_V as I write this commit
message! Super hot hotfix patch.

At the end of each line is an errant space.

Fix that.

This fixes errors when running that script.

bl1 bootloader blobs needed, and lbmk doesn't currently
auto-download these for insertion, so their presence in
the build system is problematic because people might build
these and think they work - they don't, due to the lack of
those bl1 blobs

notes about this are included in lbwww, on the compatibility
list. these can be re-added and tested later, when lbmk handles
those bl1 bootloader blobs

u-boot is known broken on these, last revision
known working is 2021.01

can bisect and find the fix. i'm putting this on
the issue tracker (new one on codeberg)

don't download it. keep it in lbmk.

libreboot moved to codeberg for git hosting,
and i didn't want to keep lugging around an
extra git repo just for one tiny project.

not just sloccount, but compiled binary size as
tested with tcc on an x86_64 host

i went too hard on the sloc reductions

a check inside a for loop could cause
incomplete reading of gbe images

revert that

also removed some unnecessary checks

fixed the check of pwrite's return value
(it should check for -1)

added a few that were more useful

deleted a few obnoxious ones

the byteswap() function is used for big endian host
compatibility, but it can also be used to swap words
in the stored mac address

these were put in when i was testing the feature to
limit read/written bytes in loading/saving of files

the code is smaller

word/setWord no longer mitigates endianness. instead,
all bytes are swapped after reading and before writing the
file, and only if the host is big endian

this improves performance on little endian hosts, which is
most machines, and the code is much simpler, so it's more
robust and less likely to break

mac address endianness made more clear in code, including
with a comment that explains it

(the nvm section contains little endian words, *except* the
mac address whose words are stored big endian)

it was resetting the total for each nibble. absolute
epic fail on my part.

fixed now.

i overlooked this one. the normal one was removed,
due to boot issues with the board. i need to look
at this board before re-adding it to libreboot

always use tabs

yeah and don't hardcode me.bin. just don't show any me.bin in git

Bruteforce it. Some executables are just using inno
archival but some are simple LZMA. This patch handles
both of them, and also the event where you have LZMA
compressed files (even LZMA compressed files within
LZMA compressed archives) within any inno/lzma compressed
executable.

It recursively scans inside a vendor update, to find
a me.bin files for neutering with me_cleaner.

This is in preparation for two new ports in Libreboot:

* HP EliteBook 8560w
* Apple MacBook Air 4,2 (2011)

This script can literally be used with multiple vendors now.
It is no longer specific just to Lenovo. I originally did
this and other recent commits to the file, as one big
commit, but I decided to split it all up into small commits.

This patch makes it easier to determine which part does what.

Basically, I really like OpenBSD coding style, and I want to
replicate this, somewhat, in shell scripts.