GNU bug report logs - #44531
27.1; Emacs 27 fails to build from source on m68k (regression)

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Package: emacs; Severity: important; Reported by: John Paul Adrian Glaubitz <glaubitz@HIDDEN>; dated Mon, 9 Nov 2020 13:32:01 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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Subject: Re: bug#44531: 27.1; Emacs 27 fails to build from source on m68k
 (regression)
To: Daniel Colascione <dancol@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>
References: <wl4sg9ir72d.fsf@HIDDEN> <83eeknywut.fsf@HIDDEN>
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From: John Paul Adrian Glaubitz <glaubitz@HIDDEN>
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(CC'ing Andreas)

On 11/21/20 9:07 AM, Daniel Colascione wrote:
>>> Starting with version 27, Emacs has started failing to build from source
>>> on m68k (Linux) with the following error message:
> 
> 
> m68k is big endian, isn't it? Try building with enable-checking to see whether we can see where the bit rearrangement problem might be.

Thanks, I'll give it a try. My suspicion would be that it's an alignment problem
since the native alignment for m68k on Linux/sysv is 16 bits, not 32 bits.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@HIDDEN
`. `'   Freie Universitaet Berlin - glaubitz@HIDDEN
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#44531; Package emacs. Full text available.

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From: Daniel Colascione <dancol@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>,
 John Paul Adrian Glaubitz <glaubitz@HIDDEN>
Date: Sat, 21 Nov 2020 00:07:28 -0800
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Subject: Re: bug#44531: 27.1;
 Emacs 27 fails to build from source on m68k (regression)
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On November 20, 2020 11:48:09 PM Eli Zaretskii <eliz@HIDDEN> wrote:

>> From: John Paul Adrian Glaubitz <glaubitz@HIDDEN>
>> Date: Mon, 09 Nov 2020 14:30:34 +0100
>>
>> Hello!
>>
>> Starting with version 27, Emacs has started failing to build from source
>> on m68k (Linux) with the following error message:


m68k is big endian, isn't it? Try building with enable-checking to see 
whether we can see where the bit rearrangement problem might be.

>>
>> /bin/mkdir -p ../etc
>> /usr/bin/make -C ../lisp update-subdirs
>> make[4]: Entering directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
>> make[4]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
>> cp -f temacs bootstrap-emacs
>> rm -f bootstrap-emacs.pdmp
>> ./temacs --batch  -l loadup --temacs=pbootstrap
>> Loading loadup.el (source)...
>> dump mode: pbootstrap
>> Using load-path (/<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp 
>> /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp 
>> /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/progmodes 
>> /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/language 
>> /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/international 
>> /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/textmodes 
>> /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc)
>> Loading emacs-lisp/byte-run (source)...
>> Loading emacs-lisp/backquote (source)...
>> Loading subr (source)...
>> Loading version (source)...
>> (...)
>> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/vc-hooks.el 
>> (source)...
>> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/ediff-hook.el 
>> (source)...
>> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/uniquify.el 
>> (source)...
>> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/electric.el 
>> (source)...
>> Loading 
>> /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp/eldoc.el 
>> (source)...
>> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/cus-start.el 
>> (source)...
>> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/tooltip.el (source)...
>> Finding pointers to doc strings...
>> Finding pointers to doc strings...done
>> Dumping under the name bootstrap-emacs.pdmp
>> dumping fingerprint: 
>> 7b5c59c589dc151eb1e4269bd83fbe809616b5cb9bb5c80014d5b560b391dfb6
>> dump relocation out of range
>>
>> Full build log available in [1].
>>
>> I have not been able to figure out what "dump relocation out of range"
>> actually means, so any explanation is much appreciated.
>
> Daniel, any advice for how to go about this problem?
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#44531; Package emacs. Full text available.

Message received at 44531 <at> debbugs.gnu.org:


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In-Reply-To: <wl4sg9ir72d.fsf@HIDDEN> (message from John Paul
 Adrian Glaubitz on Mon, 09 Nov 2020 14:30:34 +0100)
Subject: Re: bug#44531: 27.1;
 Emacs 27 fails to build from source on m68k (regression)
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> From: John Paul Adrian Glaubitz <glaubitz@HIDDEN>
> Date: Mon, 09 Nov 2020 14:30:34 +0100
> 
> Hello!
> 
> Starting with version 27, Emacs has started failing to build from source
> on m68k (Linux) with the following error message:
> 
> /bin/mkdir -p ../etc
> /usr/bin/make -C ../lisp update-subdirs
> make[4]: Entering directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
> make[4]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
> cp -f temacs bootstrap-emacs
> rm -f bootstrap-emacs.pdmp
> ./temacs --batch  -l loadup --temacs=pbootstrap
> Loading loadup.el (source)...
> dump mode: pbootstrap
> Using load-path (/<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/progmodes /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/language /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/international /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/textmodes /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc)
> Loading emacs-lisp/byte-run (source)...
> Loading emacs-lisp/backquote (source)...
> Loading subr (source)...
> Loading version (source)...
> (...)
> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/vc-hooks.el (source)...
> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/ediff-hook.el (source)...
> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/uniquify.el (source)...
> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/electric.el (source)...
> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp/eldoc.el (source)...
> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/cus-start.el (source)...
> Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/tooltip.el (source)...
> Finding pointers to doc strings...
> Finding pointers to doc strings...done
> Dumping under the name bootstrap-emacs.pdmp
> dumping fingerprint: 7b5c59c589dc151eb1e4269bd83fbe809616b5cb9bb5c80014d5b560b391dfb6
> dump relocation out of range
> 
> Full build log available in [1].
> 
> I have not been able to figure out what "dump relocation out of range"
> actually means, so any explanation is much appreciated.

Daniel, any advice for how to go about this problem?
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#44531; Package emacs. Full text available.

Message received at 44531 <at> debbugs.gnu.org:


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Subject: Re: bug#44531: Acknowledgement (27.1; Emacs 27 fails to build from
 source on m68k (regression))
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From: John Paul Adrian Glaubitz <glaubitz@HIDDEN>
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Hi!

The problem can be worked around by configuring emacs with "--with-dumping=unexec",
so it seems the new portable dumper is incompatible with m68k.

Thanks,
Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@HIDDEN
`. `'   Freie Universitaet Berlin - glaubitz@HIDDEN
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#44531; Package emacs. Full text available.
Severity set to 'important' from 'normal' Request was from Glenn Morris <rgm@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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From: John Paul Adrian Glaubitz <glaubitz@HIDDEN>
To: bug-gnu-emacs@HIDDEN
Subject: 27.1; Emacs 27 fails to build from source on m68k (regression)
Date: Mon, 09 Nov 2020 14:30:34 +0100
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Hello!

Starting with version 27, Emacs has started failing to build from source
on m68k (Linux) with the following error message:

/bin/mkdir -p ../etc
/usr/bin/make -C ../lisp update-subdirs
make[4]: Entering directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
make[4]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/lisp'
cp -f temacs bootstrap-emacs
rm -f bootstrap-emacs.pdmp
./temacs --batch  -l loadup --temacs=pbootstrap
Loading loadup.el (source)...
dump mode: pbootstrap
Using load-path (/<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/progmodes /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/language /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/international /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/textmodes /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc)
Loading emacs-lisp/byte-run (source)...
Loading emacs-lisp/backquote (source)...
Loading subr (source)...
Loading version (source)...
(...)
Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/vc-hooks.el (source)...
Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/vc/ediff-hook.el (source)...
Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/uniquify.el (source)...
Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/electric.el (source)...
Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/emacs-lisp/eldoc.el (source)...
Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/cus-start.el (source)...
Loading /<<BUILDDIR>>/emacs-27.1+1/debian/build-src/lisp/tooltip.el (source)...
Finding pointers to doc strings...
Finding pointers to doc strings...done
Dumping under the name bootstrap-emacs.pdmp
dumping fingerprint: 7b5c59c589dc151eb1e4269bd83fbe809616b5cb9bb5c80014d5b560b391dfb6
dump relocation out of range

Full build log available in [1].

I have not been able to figure out what "dump relocation out of range"
actually means, so any explanation is much appreciated.

Thanks,
Adrian

> [1] https://buildd.debian.org/status/fetch.php?pkg=emacs&arch=m68k&ver=1%3A27.1%2B1-3&stamp=1604857999&raw=0

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@HIDDEN
`. `'   Freie Universitaet Berlin - glaubitz@HIDDEN
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913
Acknowledgement sent to John Paul Adrian Glaubitz <glaubitz@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#44531; Package emacs. Full text available.
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