[Bug string/29452] New: /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[Bug string/29452] New: /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[danglin at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

            Bug ID: 29452
           Summary: /home/dave/gnu/glibc/glibc/debug/../string/bits/string
                    _fortified.h:30: undefined  reference to
                    `__builtin_dynamic_object_size'
           Product: glibc
           Version: 2.38
            Status: NEW
          Severity: normal
          Priority: P2
         Component: string
          Assignee: unassigned at sourceware dot org
          Reporter: danglin at gcc dot gnu.org
  Target Milestone: ---
              Host: hppa*-*-linux*
            Target: hppa*-*-linux*
             Build: hppa*-*-linux*

gcc -o /home/dave/gnu/glibc/objdir/debug/tst-fortify-cc-default-1 -nostdlib
-nos
tartfiles     -Wl,-z,relro  /home/dave/gnu/glibc/objdir/csu/crt1.o
/home/dave/gn
u/glibc/objdir/csu/crti.o `gcc  --print-file-name=crtbegin.o`
/home/dave/gnu/gli
bc/objdir/debug/tst-fortify-cc-default-1.o
/home/dave/gnu/glibc/objdir/support/l
ibsupport_nonshared.a -lstdc++ -Wl,-dynamic-linker=/lib/ld.so.1
-Wl,-rpath-link=
/home/dave/gnu/glibc/objdir:/home/dave/gnu/glibc/objdir/math:/home/dave/gnu/glib
c/objdir/elf:/home/dave/gnu/glibc/objdir/dlfcn:/home/dave/gnu/glibc/objdir/nss:/
home/dave/gnu/glibc/objdir/nis:/home/dave/gnu/glibc/objdir/rt:/home/dave/gnu/gli
bc/objdir/resolv:/home/dave/gnu/glibc/objdir/mathvec:/home/dave/gnu/glibc/objdir
/support:/home/dave/gnu/glibc/objdir/crypt:/home/dave/gnu/glibc/objdir/nptl
-lgc
c -Wl,--as-needed -lgcc_s  -Wl,--no-as-needed
/home/dave/gnu/glibc/objdir/libc.s
o.6 /home/dave/gnu/glibc/objdir/libc_nonshared.a -Wl,--as-needed
/home/dave/gnu/
glibc/objdir/elf/ld.so -Wl,--no-as-needed -lgcc -Wl,--as-needed -lgcc_s 
-Wl,--n
o-as-needed `gcc  --print-file-name=crtend.o`
/home/dave/gnu/glibc/objdir/csu/cr
tn.o
/home/dave/opt/gnu/bin/ld:
/home/dave/gnu/glibc/objdir/debug/tst-fortify-c-nongn
u-3.o: in function `memcpy':
/home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30:
undefined
 reference to `__builtin_dynamic_object_size'
/home/dave/opt/gnu/bin/ld:
/home/dave/gnu/glibc/objdir/debug/tst-fortify-c-nongn
u-3.o: in function `memmove':
/home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:37:
undefined
 reference to `__builtin_dynamic_object_size'
/home/dave/opt/gnu/bin/ld:
/home/dave/gnu/glibc/objdir/debug/tst-fortify-c-nongn
u-3.o: in function `memcpy':
/home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30:
undefined
 reference to `__builtin_dynamic_object_size'
/home/dave/opt/gnu/bin/ld:
/home/dave/gnu/glibc/objdir/debug/tst-fortify-c-nongnu-3.o: in function
`bcopy':
/home/dave/gnu/glibc/glibc/debug/../string/bits/strings_fortified.h:26:
undefined reference to `__builtin_dynamic_object_size'
/home/dave/opt/gnu/bin/ld:
/home/dave/gnu/glibc/objdir/debug/tst-fortify-c-nongnu-3.o: in function
`memcpy':
/home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30:
undefined reference to `__builtin_dynamic_object_size'
/home/dave/opt/gnu/bin/ld:
/home/dave/gnu/glibc/objdir/debug/tst-fortify-c-nongnu-3.o:/home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:60:
more undefined references to `__builtin_dynamic_object_size' follow
collect2: error: ld returned 1 exit status
make[2]: *** [../Rules:238:
/home/dave/gnu/glibc/objdir/debug/tst-fortify-c-nongnu-3] Error 1

dave@atlas:~/gnu/glibc/objdir$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/home/dave/opt/gnu/gcc/gcc-12a/libexec/gcc/hppa-linux-gnu/12.0.0/lto-wrapper
Target: hppa-linux-gnu
Configured with: ../gcc/configure --with-gnu-as --with-gnu-ld --enable-shared
--enable-multiarch --enable-linker-build-id --build=hppa-linux-gnu
--host=hppa-linux-gnu --target=hppa-linux-gnu
--prefix=/home/dave/opt/gnu/gcc/gcc-12a --with-local-prefix=/home/dave/opt/gnu
--enable-threads=posix --enable-__cxa_atexit --build=hppa-linux-gnu
--enable-clocale=gnu --enable-checking=release --enable-languages=c,c++
--without-ppl --enable-libssp --disable-werror
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20211008 (experimental) [master r13-1220-g7c1c7e120cc] (GCC)

Breaks testsuite.

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[Bug string/29452] /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-
             Status|NEW                         |WAITING
                 CC|                            |fweimer at redhat dot com

--- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
(In reply to John David Anglin from comment #0)
> gcc version 12.0.0 20211008 (experimental) [master r13-1220-g7c1c7e120cc]
> (GCC)

That looks like a GCC snapshot that's just too old. The version-based header
conditionals work only with released compilers (and later stage 4 snapshots
because of the development wind-down).

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[Bug string/29452] /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[dave.anglin at bell dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

--- Comment #2 from dave.anglin at bell dot net ---
On 2022-08-07 4:43 a.m., fweimer at redhat dot com wrote:
> https://sourceware.org/bugzilla/show_bug.cgi?id=29452
>
> Florian Weimer <fweimer at redhat dot com> changed:
>
>             What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                Flags|                            |security-
>               Status|NEW                         |WAITING
>                   CC|                            |fweimer at redhat dot com
>
> --- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
> (In reply to John David Anglin from comment #0)
>> gcc version 12.0.0 20211008 (experimental) [master r13-1220-g7c1c7e120cc]
>> (GCC)
> That looks like a GCC snapshot that's just too old. The version-based header
> conditionals work only with released compilers (and later stage 4 snapshots
> because of the development wind-down).
This appeared bisecting gcc to find which revision introduced the failure
of malloc/tst-scratch_buffer on hppa:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106458

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[Bug string/29452] /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[dave.anglin at bell dot net]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

--- Comment #3 from dave.anglin at bell dot net ---
On 2022-08-07 4:43 a.m., fweimer at redhat dot com wrote:
> --- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
> (In reply to John David Anglin from comment #0)
>> gcc version 12.0.0 20211008 (experimental) [master r13-1220-g7c1c7e120cc]
>> (GCC)
> That looks like a GCC snapshot that's just too old. The version-based header
> conditionals work only with released compilers (and later stage 4 snapshots
> because of the development wind-down).
Shouldn't the prereq for __builtin_dynamic_object_size be GCC 12.1 instead of
12.0?

There's no 12.0 release and the feature was added during the development phase
for the
first GCC 12 release.

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[Bug string/29452] /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[siddhesh at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

Siddhesh Poyarekar <siddhesh at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |siddhesh at sourceware dot org

--- Comment #4 from Siddhesh Poyarekar <siddhesh at sourceware dot org> ---
(In reply to dave.anglin from comment #3)
> Shouldn't the prereq for __builtin_dynamic_object_size be GCC 12.1 instead
> of 12.0?
> 
> There's no 12.0 release and the feature was added during the development
> phase for the
> first GCC 12 release.

AFAICT, except for one instance (in a test not in any headers), version checks
against the first major release always refer to the .0 version number.  I guess
this is to make the feature testable during development (where one simply
rebases to the latest gcc development snapshot) so that it remains unchanged in
glibc even after release.

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[Bug string/29452] /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[fernando.hueso at uv dot es]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

ferdymercury <fernando.hueso at uv dot es> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fernando.hueso at uv dot es

--- Comment #5 from ferdymercury <fernando.hueso at uv dot es> ---
I have found (kind of) a similar problem. I was using nvcc-8 on Ubuntu22, and
after some glibc package upgrades, it stopped working. (see
https://stackoverflow.com/questions/76531467/nvcc-cuda8-gcc-5-3-no-longer-compiles-with-o1-on-ubuntu-22-04).

Now getting:  /usr/include/x86_64-linux-gnu/bits/string_fortified.h(104):
error: identifier "__builtin___stpncpy_chk" is undefined

I was wondering if there is a way to hack 'by hand' the string_fortified.h with
an #ifdef guard that checks for the CUDA_version... to restore the original
behavior before the package upgrade.

Thanks!

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[Bug string/29452] /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[siddhesh at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

Siddhesh Poyarekar <siddhesh at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |michael.hudson at canonical dot co
                   |                            |m

--- Comment #6 from Siddhesh Poyarekar <siddhesh at sourceware dot org> ---
(In reply to ferdymercury from comment #5)
> I have found (kind of) a similar problem. I was using nvcc-8 on Ubuntu22,
> and after some glibc package upgrades, it stopped working. (see
> https://stackoverflow.com/questions/76531467/nvcc-cuda8-gcc-5-3-no-longer-
> compiles-with-o1-on-ubuntu-22-04).
> 
> Now getting:  /usr/include/x86_64-linux-gnu/bits/string_fortified.h(104):
> error: identifier "__builtin___stpncpy_chk" is undefined
> 
> I was wondering if there is a way to hack 'by hand' the string_fortified.h
> with an #ifdef guard that checks for the CUDA_version... to restore the
> original behavior before the package upgrade.
> 
> Thanks!

This looks like something we fixed in 2.36 and backported to the 2.35 release
branch:

https://sourceware.org/git/?p=glibc.git;a=commit;h=478cd506eaa5bbc81e3de6593a5064fa5f36fea9

Ubuntu needs to rebase its release or at least cherry-pick that fix.

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[Bug string/29452] /home/dave/gnu/glibc/glibc/debug/../string/bits/string_fortified.h:30: undefined reference to `__builtin_dynamic_object_size'

[fernando.hueso at uv dot es]

https://sourceware.org/bugzilla/show_bug.cgi?id=29452

--- Comment #7 from ferdymercury <fernando.hueso at uv dot es> ---
Thanks so much for the swift reply. I cherry picked this commit locally, but it
was not enough, I also had to add the following to the ifdef, so that it
entered into the "else", because I am using nvcc-8 compiler together with gcc
(Ubuntu 5.3.1-14ubuntu2):

# if (__GNUC_PREREQ (4, 7) && (!defined(CUDART_VERSION) ||
CUDART_VERSION>8000)) || __glibc_clang_prereq (2, 6)

Now it's working, thanks so much for the hint!

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