[Buildroot] [Bug 7424] New: undefined reference to `__builtin_thread_pointer'

[Buildroot] [Bug 7424] New: undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

           Summary: undefined reference to `__builtin_thread_pointer'
           Product: buildroot
           Version: 2014.08
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
        AssignedTo: unassigned at buildroot.uclibc.org
        ReportedBy: reddy.mrp at gmail.com
                CC: buildroot at uclibc.org
   Estimated Hours: 0.0


/usr/bin/make -j1  HOSTCC="/usr/bin/gcc" HOSTCXX="/usr/bin/g++" silentoldconfig
make[1]: Entering directory `/home/anu/elinux/buildroot-2014.08'
BR2_DEFCONFIG=''
KCONFIG_AUTOCONFIG=/home/anu/elinux/buildroot-2014.08/output/build/buildroot-config/auto.conf
KCONFIG_AUTOHEADER=/home/anu/elinux/buildroot-2014.08/output/build/buildroot-config/autoconf.h
KCONFIG_TRISTATE=/home/anu/elinux/buildroot-2014.08/output/build/buildroot-config/tristate.config
BR2_CONFIG=/home/anu/elinux/buildroot-2014.08/.config
BR2_EXTERNAL=support/dummy-external
/home/anu/elinux/buildroot-2014.08/output/build/buildroot-config/conf
--silentoldconfig Config.in
make[1]: Leaving directory `/home/anu/elinux/buildroot-2014.08'
>>> uclibc 0.9.33.2 Building
/usr/bin/make -j9 -C
/home/anu/elinux/buildroot-2014.08/output/build/uclibc-0.9.33.2 ARCH="arm"
CROSS_COMPILE="/home/anu/elinux/cross_compiler/usr/bin/arm-raspberry-linux-uclibcgnueabihf-"
UCLIBC_EXTRA_CFLAGS=" " HOSTCC="/usr/bin/gcc" PREFIX= DEVEL_PREFIX=/
RUNTIME_PREFIX=/ all
make[1]: Entering directory
`/home/anu/elinux/buildroot-2014.08/output/build/uclibc-0.9.33.2'
  LD ld-uClibc-0.9.33.2.so
ldso/ldso/ld-uClibc_so.a(ldso.oS): In function `_dl_nothread_init_static_tls':
ldso.c:(.text+0xf00): undefined reference to `__builtin_thread_pointer'
collect2: error: ld returned 1 exit status
make[1]: *** [lib/ld-uClibc.so] Error 1
make[1]: Leaving directory
`/home/anu/elinux/buildroot-2014.08/output/build/uclibc-0.9.33.2'
make: ***
[/home/anu/elinux/buildroot-2014.08/output/build/uclibc-0.9.33.2/.stamp_built]
Error 2

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #1 from reddi <reddy.mrp@gmail.com> 2014-09-10 18:16:37 UTC ---
Hi,

please help me out how to resolve this issue.

Thanks
R

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #2 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2014-09-10 18:27:19 UTC ---
See http://buildroot.org/downloads/manual/manual.html#reporting-bugs. If you
don't provide your Buildroot .config file, there's no way for us to understand
what configuration you are building, and no way to reproduce your build.

Also, could you make sure to restart the build from scratch by doing "make
clean; make". Your report very much looks like a change in the toolchain
configuration, without doing a full rebuild. See
http://buildroot.org/downloads/manual/manual.html#full-rebuild.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #3 from reddi <reddy.mrp@gmail.com> 2014-09-10 19:18:22 UTC ---
Created attachment 5654
  --> https://bugs.busybox.net/attachment.cgi?id=5654
attached config file

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #4 from reddi <reddy.mrp@gmail.com> 2014-09-10 19:21:10 UTC ---
Hi,

Thanks for the early response. i have used "make clean;make" but still i am not
able to solve this issue. please let me know if i need to change anything
config.

please find the attached config file.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #5 from Gustavo Zacarias <gustavo@zacarias.com.ar> 2014-09-10 20:19:33 UTC ---
We need the ".config" file, not Config.in which is a part of buildroot itself.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #6 from reddi <reddy.mrp@gmail.com> 2014-09-11 02:51:01 UTC ---
Created attachment 5660
  --> https://bugs.busybox.net/attachment.cgi?id=5660
attached config file

Hi,

PLease find the attached config file. please let me know if you need further
info.

Thanks 
R

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #7 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2014-09-11 21:38:24 UTC ---
Did you customize your uClibc configuration using "make uclibc-menuconfig" ?

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #8 from Thomas De Schampheleire <patrickdepinguin@gmail.com> 2014-10-20 19:15:24 UTC ---
Do you still see this problem?
If so, could you answer the question raised in comment #7 and provide your
uclibc configuration file too? Thanks.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #9 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2014-10-26 20:50:40 UTC ---
I'm able to reproduce the problem, with the config provided by the bug
submitter. The corresponding defconfig is:

BR2_arm=y
BR2_arm1176jzf_s=y
BR2_ARM_EABIHF=y
BR2_TOOLCHAIN_BUILDROOT_VENDOR="raspberry"
BR2_KERNEL_HEADERS_3_16=y
BR2_TOOLCHAIN_BUILDROOT_LARGEFILE=y
BR2_TOOLCHAIN_BUILDROOT_INET_IPV6=y
BR2_TOOLCHAIN_BUILDROOT_INET_RPC=y
BR2_TOOLCHAIN_BUILDROOT_WCHAR=y
BR2_BINUTILS_VERSION_2_24=y
BR2_GCC_VERSION_4_9_X=y
BR2_TOOLCHAIN_BUILDROOT_CXX=y
# BR2_GCC_ENABLE_TLS is not set
BR2_INIT_NONE=y
# BR2_PACKAGE_BUSYBOX is not set
# BR2_TARGET_ROOTFS_TAR is not set

Most likely, the problem is due to "# BR2_GCC_ENABLE_TLS is not set".

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #10 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2014-10-26 21:01:42 UTC ---
I confirm, re-enabling TLS support makes the build success.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

Thomas Petazzoni <thomas.petazzoni@free-electrons.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nrubinstein at aldebaran.com

--- Comment #11 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2015-06-03 01:30:23 UTC ---
*** Bug 7921 has been marked as a duplicate of this bug. ***

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #12 from Alex Potapenko <opotapenko@gmail.com> 2015-09-03 16:41:31 UTC ---
I have encountered the same issue with Buildroot-2015-08. After some
investigation, I found out that
BR2_PTHREADS_NATIVE=y
Switches on
UCLIBC_HAS_THREADS_NATIVE=y
uclibc config, which automatically triggers
UCLIBC_HAS_TLS=y

So, if gcc is built without tls, this leads to the error from this ticket.
After switching threads to something different uclibc builds fine without tls
in gcc. I thinks, these two options (BR2_PTHREADS_NATIVE and
BR2_GCC_ENABLE_TLS) should be connected, since tls has to either be enabled in
both gcc and uclibc, or likewise disabled in both.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #13 from Alex Potapenko <opotapenko@gmail.com> 2015-09-03 16:48:28 UTC ---
I have encountered the same issue with Buildroot-2015-08. After some
investigation, I found out that
BR2_PTHREADS_NATIVE=y
Switches on
UCLIBC_HAS_THREADS_NATIVE=y
uclibc config, which automatically triggers
UCLIBC_HAS_TLS=y

So, if gcc is built without tls, this leads to the error from this ticket.
After switching threads to something different uclibc builds fine without tls
in gcc. I think, these two options (BR2_PTHREADS_NATIVE and BR2_GCC_ENABLE_TLS)
should be connected, since tls has to either be enabled in both gcc and uclibc,
or likewise disabled in both.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #14 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2015-09-03 20:26:41 UTC ---
(In reply to comment #13)

> So, if gcc is built without tls, this leads to the error from this ticket.
> After switching threads to something different uclibc builds fine without tls
> in gcc. I think, these two options (BR2_PTHREADS_NATIVE and BR2_GCC_ENABLE_TLS)
> should be connected, since tls has to either be enabled in both gcc and uclibc,
> or likewise disabled in both.

Thanks for the report. Our plan is to make the TLS option no longer visible,
and make TLS mandatory when thread support is enabled. If you want to tackle
that, don't hesitate to send a patch!

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

--- Comment #15 from Alex Potapenko <opotapenko@gmail.com> 2015-09-04 10:50:15 UTC ---
(In reply to comment #14)
> Thanks for the report. Our plan is to make the TLS option no longer visible,
> and make TLS mandatory when thread support is enabled. If you want to tackle
> that, don't hesitate to send a patch!

I think forcing TLS is a good idea, and BR2_PTHREADS_NATIVE should be the only
threads option (if enabled) for uclibc, as with uclibc-ng.

If I had known about TLS when I was building my original toolchains for my
Optware-ng project using Buildroot-2015-02, I would have enabled it. For now,
until I eventually migrate to uclibc-ng (plan to create new feeds and abandon
old ones), I have to make sure that upgraded toolchains are compatible with the
old ones, so have to disable TLS.

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.

[Buildroot] [Bug 7424] undefined reference to `__builtin_thread_pointer'

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7424

Thomas Petazzoni <thomas.petazzoni@free-electrons.com> changed:

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

--- Comment #16 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com> ---
Fixed by
https://git.buildroot.org/buildroot/commit/?h=next&id=1bd02bc230e1b3b22ca3eb23fb3dcb91b878283a,
which simply removes the option to enable/disable TLS support. Now TLS support
is automatically enabled or disable in gcc depending on the selected C library
and its configuration.

-- 
You are receiving this mail because:
You are on the CC list for the bug.