[Bug gdb/28444] New: gdb fails to build on ppc64le when building with -flto

[Bug gdb/28444] New: gdb fails to build on ppc64le when building with -flto

[ahajkova at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28444

            Bug ID: 28444
           Summary: gdb fails to build on ppc64le when building with -flto
           Product: gdb
           Version: 11.2
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: ahajkova at redhat dot com
  Target Milestone: ---

gcc-11.2.1-1.fc35.ppc64le
gdb-10.2-6.fc35.ppc64le
Fedora-Rawhide

clone gdb and build it as follows

1.flags="-g3 -Og -flto" CFLAGS="$flags" CXXFLAGS="$flags"
../binutils-gdb/configure --disable-binutils --disable-elfcpp --disable-gas
--disable-gold --disable-gprof --disable-ld  --enable-unit-tests
--with-system-readline --with-separate-debug-dir=/usr --disable-sim
2.make -j `nproc`

results:
../../binutils-gdb/gdbserver/../gdb/arch/ppc-linux-tdesc.h:44:28: error:
‘tdesc_powerpc_isa207_htm_vsx64l’ violates the C++ One Definition Rule
[-Werror=odr]
   44 | extern struct target_desc *tdesc_powerpc_isa207_htm_vsx64l;


Note:
struct target_desc is actually defined in gdb/target-descriptions.c. Not in a
header.

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[Bug gdb/28444] gdb fails to build on ppc64le when building with -flto

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28444

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |DUPLICATE
                 CC|                            |tromey at sourceware dot org

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
Marking as dup of the generic ODR bug.

*** This bug has been marked as a duplicate of bug 22395 ***

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[Bug gdb/28444] gdb fails to build on ppc64le when building with -flto

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=28444

Tom de Vries <vries at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|11.2                        |10.1
                 CC|                            |vries at gcc dot gnu.org

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
If this still occurs, we need to reopen it.

If it does occur, please post the entire warning.

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