[Bug debugedit/27915] New: Cannot handle 8-byte build ID

[Bug debugedit/27915] New: Cannot handle 8-byte build ID

[doko at debian dot org]

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

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug debugedit/27915] Cannot handle 8-byte build ID

[mark at klomp dot org]

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.

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug debugedit/27915] Cannot handle 8-byte build ID

[doko at debian dot org]

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 ...

-- 
You are receiving this mail because:
You are on the CC list for the bug.

[Bug debugedit/27915] Cannot handle 8-byte build ID

[mark at klomp dot org]

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

-- 
You are receiving this mail because:
You are on the CC list for the bug.