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  • emacs 27 fails to build from source on m68k

    From John Paul Adrian Glaubitz@21:1/5 to All on Fri Oct 30 10:50:02 2020
    Hi!

    Just as a heads-up, emacs 27 is failing to build from source on m68k [1]:

    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: 0a633170371949b7c12d424d042472d5315e0c291484a3bcbabc8d00b5dd75aa
    dump relocation out of range
    make[3]: *** [Makefile:817: bootstrap-emacs.pdmp] Error 255
    make[3]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/src' make[2]: *** [Makefile:426: src] Error 2
    make[2]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk' make[1]: *** [debian/rules:335: override_dh_auto_build] Error 2
    make[1]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1'
    make: *** [debian/rules:204: build-arch] Error 2

    Unless someone has any idea how to fix the issue, I will report the problem upstream.

    Adrian

    [1] https://buildd.debian.org/status/fetch.php?pkg=emacs&arch=m68k&ver=1%3A27.1%2B1-2&stamp=1603566729&raw=0

    --
    .''`. John Paul Adrian Glaubitz
    : :' : Debian Developer - glaubitz@debian.org
    `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
    `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Carsten Strotmann@21:1/5 to John Paul Adrian Glaubitz on Mon Nov 9 15:00:01 2020
    Hi Adrian,

    On 9 Nov 2020, at 14:20, John Paul Adrian Glaubitz wrote:

    Hi!

    On 10/30/20 10:49 AM, John Paul Adrian Glaubitz wrote:
    Just as a heads-up, emacs 27 is failing to build from source on m68k
    [1]:

    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:
    0a633170371949b7c12d424d042472d5315e0c291484a3bcbabc8d00b5dd75aa
    dump relocation out of range
    make[3]: *** [Makefile:817: bootstrap-emacs.pdmp] Error 255
    make[3]: Leaving directory
    '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/src'
    make[2]: *** [Makefile:426: src] Error 2
    make[2]: Leaving directory
    '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk'
    make[1]: *** [debian/rules:335: override_dh_auto_build] Error 2
    make[1]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1'
    make: *** [debian/rules:204: build-arch] Error 2

    Unless someone has any idea how to fix the issue, I will report the
    problem upstream.

    The issue reproduces on qemu-m68k-system as well.


    You could try "--with-pdumper=no" in the configure step as a workaround.
    As I understand, Emacs changed the dumper from "unexec" to "pdumper" (https://dancol.org/pdumperpres.pdf) in Version 27.1.

    From https://www.masteringemacs.org/article/whats-new-in-emacs-27-1
    ""
    Emacs now uses a "portable dumper" instead of unexec.
    This improves compatibility with memory allocation on modern systems,
    and in particular better supports the Address Space Layout
    Randomization (ASLR) feature, a security technique used by most
    modern
    operating systems.
    ""

    With the above configuration setting, you get the old dumper back. That
    is not a long-term solution, but a workaround until the root cause of
    the issue with the portable dumper is found.

    Greetings

    Carsten

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Paul Adrian Glaubitz@21:1/5 to John Paul Adrian Glaubitz on Mon Nov 9 14:30:01 2020
    Hi!

    On 10/30/20 10:49 AM, John Paul Adrian Glaubitz wrote:
    Just as a heads-up, emacs 27 is failing to build from source on m68k [1]:

    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: 0a633170371949b7c12d424d042472d5315e0c291484a3bcbabc8d00b5dd75aa
    dump relocation out of range
    make[3]: *** [Makefile:817: bootstrap-emacs.pdmp] Error 255
    make[3]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk/src' >> make[2]: *** [Makefile:426: src] Error 2
    make[2]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1/debian/build-gtk'
    make[1]: *** [debian/rules:335: override_dh_auto_build] Error 2
    make[1]: Leaving directory '/<<BUILDDIR>>/emacs-27.1+1'
    make: *** [debian/rules:204: build-arch] Error 2

    Unless someone has any idea how to fix the issue, I will report the problem upstream.

    The issue reproduces on qemu-m68k-system as well.

    @Andreas: Any idea?

    Adrian

    --
    .''`. John Paul Adrian Glaubitz
    : :' : Debian Developer - glaubitz@debian.org
    `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
    `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From John Paul Adrian Glaubitz@21:1/5 to Carsten Strotmann on Mon Nov 9 15:10:01 2020
    Hello Carsten!

    On 11/9/20 2:58 PM, Carsten Strotmann wrote:
    You could try "--with-pdumper=no" in the configure step as a workaround. As I understand,
    Emacs changed the dumper from "unexec" to "pdumper" (https://dancol.org/pdumperpres.pdf)
    in Version 27.1.

    From https://www.masteringemacs.org/article/whats-new-in-emacs-27-1
    ""
    Emacs now uses a "portable dumper" instead of unexec.
    This improves compatibility with memory allocation on modern systems,
    and in particular better supports the Address Space Layout
    Randomization (ASLR) feature, a security technique used by most modern
    operating systems.
    ""

    With the above configuration setting, you get the old dumper back. That is not a long-term
    solution, but a workaround until the root cause of the issue with the portable dumper is found.

    Thanks a lot for the suggestion. I will look into this.

    Adrian

    --
    .''`. John Paul Adrian Glaubitz
    : :' : Debian Developer - glaubitz@debian.org
    `. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
    `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)