u-boot.git/lib/lzma/LzmaTools.c, branch master

lzma: Update LZMA SDK code from 9.20 to 25.01

2026-01-06T20:44:21+00:00

Currently, we have a copy of the LZMA SDK code, version 9.20, with small
updates. The original import of the LZMA SDK included a script to update the
library. This is no longer possible, due to important local changes, so
remove it. We also remove a number of extra text files that should be
unchanged from upstream, but provide no direct value to the project.
Instead, have the help text for LZMA note that this comes from the LZMA
SDK.

Next, we move our code up to the current release, 25.01. There are a
number of new header files, and some performance improvements made to
the code, at the cost of between 2 to 3 kilobytes in binary size. As
there is now a Kconfig option to disable this and retain similar speed
to what we have currently, the default option is to make this trade-off.
Our changes to the code around calling schedule() to avoid the watchdog
being triggered are kept. We add __UBOOT__ guards in two places to
prevent conflict with our own usage of these words on MIPS.

Signed-off-by: Tom Rini

lib: Remove inclusion from these files

2023-12-21T13:54:37+00:00

After some header file cleanups to add missing include files, remove
common.h from all files in the lib directory. This primarily means just
dropping the line but in a few cases we need to add in other header
files now.

Reviewed-by: Simon Glass 
Signed-off-by: Tom Rini

cyclic: Use schedule() instead of WATCHDOG_RESET()

2022-09-18T08:26:33+00:00

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese 
Reviewed-by: Simon Glass 
Tested-by: Tom Rini  [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]

lzma: Tidy up the function prototype

2022-04-06T18:01:42+00:00

This should use a const pointer for the input stream. Fix this and also
add a proper comment.

Signed-off-by: Simon Glass

common: Drop log.h from common header

2020-05-19T01:19:18+00:00

Move this header out of the common header.

Signed-off-by: Simon Glass

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini

lzma: fix buffer bound check error further

2015-01-14T16:35:43+00:00

Commit 4d3b8a0d fixed a problem with lzma decompress where it would
run out of bytes to decompress. The algorithm needs to know how many
uncompressed bytes it is expected to produce.

However, the fix introduced a potential buffer overrun, and causes
the compression test to fail (test_compression command in sandbox).

The correct fix seems to be to use the minimum of the expected number
of uncompressed bytes and the amount of output space available. That
way things work normally when there is enough space, and return an
error (without overrunning available space) when there is not.

Signed-off-by: Antonios Vamporakis 
CC: Kees Cook 
CC: Simon Glass 
CC: Daniel Schwierzeck 
CC: Luka Perkov 

Signed-off-by: Simon Glass

LzmaTools: don't self assign values

2014-06-11T20:27:06+00:00

It seems the code tries to trick the compiler the argument
is actually used. However compilers became too smart to
fool them so easily an now warn. Gcc and clang don't seem
to emit a warning when the argument is unused. If so it
should be decorated with unused / (void).

Signed-off-by: Jeroen Hofstee

lzma: fix buffer bound check error

2014-01-14T14:01:05+00:00

Variable uncompressedSize references the space available, while outSizeFull is
the actual expected uncompressed size. Using the wrong value causes LzmaDecode
to return SZ_ERROR_INPUT_EOF. Problem was introduced in commit afca294. While
at it add additional debug message.

Signed-off-by: Antonios Vamporakis 
CC: Kees Cook 
CC: Simon Glass 
CC: Daniel Schwierzeck 
CC: Luka Perkov

lzma: correctly bounds-check output buffer

2013-09-03T19:30:21+00:00

The output buffer size must be correctly passed to the lzma decoder or
there is a risk of overflowing memory during decompression. Switching
to the LZMA_FINISH_END mode means nothing is left in an unknown state
once the buffer becomes full.

Signed-off-by: Kees Cook 
Acked-by: Simon Glass