Bug 29641

Summary:	gold, dwp: support zstd for SHF_COMPRESSED debug sections
Product:	binutils	Reporter:	Fangrui Song <i>
Component:	gold	Assignee:	Fangrui Song <i>
Status:	RESOLVED FIXED
Severity:	normal	CC:	dblaikie, ian
Priority:	P2
Version:	2.40
Target Milestone:	2.40
See Also:	https://sourceware.org/bugzilla/show_bug.cgi?id=29397
Host:		Target:
Build:		Last reconfirmed:

Description Fangrui Song 2022-09-30 23:47:47 UTC

dwp needs to decompress compressed .dwo .
gold needs to decompress compressed input sections and compress output debug sections.

I can take a stab on this feature request.

Comment 1 David Blaikie 2022-10-01 00:00:57 UTC

Presumably some of this comes for free from common binutils infrastructure, like was the case for gdb, maybe?

Comment 2 Fangrui Song 2022-10-01 01:47:00 UTC

bfd/compress.c is used by many utilities (objcopy/addr2line/objdump/etc), but gas/readelf need to implement their own. gold/dwp share code and need separate support as well.

https://sourceware.org/pipermail/binutils/2022-October/123232.html [PATCH] gold, dwp: support zstd compressed input debug sections [PR 29641]

Comment 3 Fangrui Song 2022-11-11 06:21:13 UTC

Closed by
https://sourceware.org/git?p=binutils-gdb.git;a=commit;h=332a4eeaea69034b8ee6f50b931ce6734b55bf08
https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=8b2d02cbb924f1f3718dc5a20f7a9dcf07739d23

Milestone: 2.40