Some more tweaks of the libbacktrace zstd decompressor to make
decompressing slightly faster: unpack all the literal data into the
output buffer, rather than using scratch space. Bootstrapped and ran
libbacktrace tests on x86_64-pc-linux-gnu. Committed to mainline.
Ian
* elf.c
On Wed, Dec 7, 2022 at 4:22 PM Ian Lance Taylor wrote:
>
> This patch adds zstd support to libbacktrace, to support the new
> linker option --compress-debug-sections=zstd.
This patch rewrites and simplifies the main zstd decompression loop
using some ideas from the reference implementation.
This patch adds zstd support to libbacktrace, to support the new
linker option --compress-debug-sections=zstd.
The zstd format is fairly complicated, so it's likely that there are
some bugs here. It does pass the tests, at least.
Unfortunately this decompressor only runs at about 1/3 the speed
