* [Bug debugedit/27915] New: Cannot handle 8-byte build ID
@ 2021-05-26 9:45 doko at debian dot org
2021-05-26 12:50 ` [Bug debugedit/27915] " mark at klomp dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: doko at debian dot org @ 2021-05-26 9:45 UTC (permalink / raw)
To: debugedit
https://sourceware.org/bugzilla/show_bug.cgi?id=27915
Bug ID: 27915
Summary: Cannot handle 8-byte build ID
Product: debugedit
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: debugedit
Assignee: unassigned at sourceware dot org
Reporter: doko at debian dot org
CC: debugedit at sourceware dot org
Target Milestone: ---
Created attachment 13471
--> https://sourceware.org/bugzilla/attachment.cgi?id=13471&action=edit
test case
seen when building the nageru package in Ubuntu:
full build log at
https://launchpad.net/ubuntu/+source/nageru/2.0.1-3/+build/21476382
$ debugedit --build-id --build-id-seed=nageru/2.0.1-3
debian/nageru/usr/bin/kaeru
debugedit: debian/nageru/usr/bin/kaeru: Unknown DWARF DW_FORM_0x1f20
Cannot handle 8-byte build ID
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* [Bug debugedit/27915] Cannot handle 8-byte build ID
2021-05-26 9:45 [Bug debugedit/27915] New: Cannot handle 8-byte build ID doko at debian dot org
@ 2021-05-26 12:50 ` mark at klomp dot org
2021-05-26 14:16 ` doko at debian dot org
2021-05-26 14:24 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: mark at klomp dot org @ 2021-05-26 12:50 UTC (permalink / raw)
To: debugedit
https://sourceware.org/bugzilla/show_bug.cgi?id=27915
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mark at klomp dot org
--- Comment #1 from Mark Wielaard <mark at klomp dot org> ---
(In reply to Matthias Klose from comment #0)
> Cannot handle 8-byte build ID
An 8-byte (just 64bits) build ID doesn't make much sense.
It is too small to make sure it is a globally unique identifier.
You need 16 bytes (128 bits) minimum.
This must be a linker bug. Older lld had a bug where they had a "fast" build-id
generator that produced such small (useless) build-ids.
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* [Bug debugedit/27915] Cannot handle 8-byte build ID
2021-05-26 9:45 [Bug debugedit/27915] New: Cannot handle 8-byte build ID doko at debian dot org
2021-05-26 12:50 ` [Bug debugedit/27915] " mark at klomp dot org
@ 2021-05-26 14:16 ` doko at debian dot org
2021-05-26 14:24 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: doko at debian dot org @ 2021-05-26 14:16 UTC (permalink / raw)
To: debugedit
https://sourceware.org/bugzilla/show_bug.cgi?id=27915
--- Comment #2 from Matthias Klose <doko at debian dot org> ---
indeed, the package has a build dependency on lld. But "Older lld" means here
LLVM 11 ...
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* [Bug debugedit/27915] Cannot handle 8-byte build ID
2021-05-26 9:45 [Bug debugedit/27915] New: Cannot handle 8-byte build ID doko at debian dot org
2021-05-26 12:50 ` [Bug debugedit/27915] " mark at klomp dot org
2021-05-26 14:16 ` doko at debian dot org
@ 2021-05-26 14:24 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: mark at klomp dot org @ 2021-05-26 14:24 UTC (permalink / raw)
To: debugedit
https://sourceware.org/bugzilla/show_bug.cgi?id=27915
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
See Also| |https://bugs.llvm.org/show_
| |bug.cgi?id=44138
Resolution|--- |NOTABUG
--- Comment #3 from Mark Wielaard <mark at klomp dot org> ---
I see there is already an lld bug open against this:
https://bugs.llvm.org/show_bug.cgi?id=44138
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end of thread, other threads:[~2021-05-26 14:24 UTC | newest]
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2021-05-26 9:45 [Bug debugedit/27915] New: Cannot handle 8-byte build ID doko at debian dot org
2021-05-26 12:50 ` [Bug debugedit/27915] " mark at klomp dot org
2021-05-26 14:16 ` doko at debian dot org
2021-05-26 14:24 ` mark at klomp dot org
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