[Bug bootstrap/95147] New: Bootstrap fails with GCC 4.8 host compiler

[Bug bootstrap/95147] New: Bootstrap fails with GCC 4.8 host compiler

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95147

            Bug ID: 95147
           Summary: Bootstrap fails with GCC 4.8 host compiler
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

gcc: error: unrecognized command line option ?-fcf-protection?
gcc: error: unrecognized command line option ?-mshstk?
Makefile:603: recipe for target 'libz_a-adler32.o' failed
make[3]: *** [libz_a-adler32.o] Error 1
make[3]: Leaving directory '/home/abuild/rguenther/obj/zlib'
Makefile:12959: recipe for target 'all-stage1-zlib' failed
make[2]: *** [all-stage1-zlib] Error 2
make[2]: Leaving directory '/home/abuild/rguenther/obj'
Makefile:24483: recipe for target 'stage1-bubble' failed
make[1]: *** [stage1-bubble] Error 2
make[1]: Leaving directory '/home/abuild/rguenther/obj'
Makefile:998: recipe for target 'all' failed
make: *** [all] Error 2

[Bug bootstrap/95147] [11 Regression] Bootstrap fails with GCC 4.8 host compiler

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95147

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |hjl.tools at gmail dot com
             Target|                            |x86_64-*-*
           Priority|P3                          |P1
            Summary|Bootstrap fails with GCC    |[11 Regression] Bootstrap
                   |4.8 host compiler           |fails with GCC 4.8 host
                   |                            |compiler
   Target Milestone|---                         |11.0

[Bug bootstrap/95147] [11 Regression] Bootstrap fails with GCC 4.8 host compiler

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95147

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
--disable-cet seems to be a workaround, it looks like the configury fails to
check for host compiler support (or alternatively --disable-cet should be the
default for stage1?)

[Bug bootstrap/95147] [11 Regression] Bootstrap fails with GCC 4.8 host compiler

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95147

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2020-05-15
           Assignee|unassigned at gcc dot gnu.org      |hjl.tools at gmail dot com
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

[Bug bootstrap/95147] [11 Regression] Bootstrap fails with GCC 4.8 host compiler

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95147

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |https://gcc.gnu.org/piperma
                   |                            |il/gcc-patches/2020-May/545
                   |                            |822.html
           Keywords|                            |patch

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Richard Biener from comment #1)
> --disable-cet seems to be a workaround, it looks like the configury fails to
> check for host compiler support (or alternatively --disable-cet should be
> the default for stage1?)

This patch:

https://gcc.gnu.org/pipermail/gcc-patches/2020-May/545822.html

fixes it.

[Bug bootstrap/95147] [11 Regression] Bootstrap fails with GCC 4.8 host compiler

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95147

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@gcc.gnu.org>:

https://gcc.gnu.org/g:4c1a5d8b71e29b71e0bc1004480c12c5fc427cb7

commit r11-422-g4c1a5d8b71e29b71e0bc1004480c12c5fc427cb7
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri May 15 09:06:50 2020 -0700

    x86: Also check if -fcf-protection works

    When defaulting CET run-time support to auto, check if -fcf-protection
    works.  Even if the stage1 GCC doesn't support -fcf-protection, since
    the final GCC does, CET run-time support will be enabled by default if
    binutils support CET.

    config/

            PR bootstrap/95147
            * cet.m4 (GCC_CET_FLAGS): Also check if -fcf-protection works
            when defaulting to auto.

    libatomic/

            PR bootstrap/95147
            * configure: Regenerated.

    libbacktrace/

            PR bootstrap/95147
            * configure: Regenerated.

    libgcc/

            PR bootstrap/95147
            * configure: Regenerated.

    libgfortran/

            PR bootstrap/95147
            * configure: Regenerated.

    libgomp/

            PR bootstrap/95147
            * configure: Regenerated.

    libitm/

            PR bootstrap/95147
            * configure: Regenerated.

    libobjc/

            PR bootstrap/95147
            * configure: Regenerated.

    libphobos/

            PR bootstrap/95147
            * configure: Regenerated.

    libquadmath/

            PR bootstrap/95147
            * configure: Regenerated.

    libsanitizer/

            PR bootstrap/95147
            * configure: Regenerated.

    libssp/

            PR bootstrap/95147
            * configure: Regenerated.

    libstdc++-v3/

            PR bootstrap/95147
            * configure: Regenerated.

    libvtv/

            PR bootstrap/95147
            * configure: Regenerated.

    zlib/

            PR bootstrap/95147
            * configure: Regenerated.

[Bug bootstrap/95147] [11 Regression] Bootstrap fails with GCC 4.8 host compiler

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95147

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Fixed.