[OE-core] u-boot crash on network code hardkernel v2017.05

[Paulo Neves]

Hello,

I use a modified version of meta-odroid so that I can build u-boot
from hardkernel v2017.05
(https://github.com/hardkernel/u-boot.git@88af53fbcef8386cb4d5f04c19f4b2bcb69e90ca)

Recently i noticed my u-boot crashes in any network operation (even
ping) if it is compiled by the yocto toolchain. To abstract away any
recipe differences and narrow down my changes to the toolchain, I
cloned the hardkernel repository and made

With Ubuntu 16.04.4 LTS and gcc-arm-linux-gnueabihf package [1]

make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm odroid-xu4_defconfig
make CROSS_COMPILE=arm-linux-gnueabihf- ARCH=arm
cd ./sdfuse
./sdfuse.sh /dev/mmcblk0

The Odroid successfully boots

On the other hand the exact same commands on the same workspace but
with the PATH set to the yocto recipe-sysroot (sumo) I am able to boot
but upon using a network resource it always hangs as below [2]. This
is exactly the same crash behavior as the one produced by the normal
yocto build.With u-boot built with the yocto toolchain, if i try to
boot from the sd card everything works fine. The only way that the
yocto toolchain seems to impact is in network related operations in
u-boot. I have tried to correct some of the minor warnings that pop up
in both versions. I also tried to build with -O0 but the problem
persists.

[1]
~/Projects/u-boot$ arm-linux-gnueabihf-gcc -v
Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc-cross/arm-linux-gnueabihf/5/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
5.4.0-6ubuntu1~16.04.9'
--with-bugurl=file:///usr/share/doc/gcc-5/README.Bugs
--enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++
--prefix=/usr --program-suffix=-5 --enable-shared
--enable-linker-build-id --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix --libdir=/usr/lib
--enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-libitm --disable-libquadmath --enable-plugin
--with-system-zlib --disable-browser-plugin --enable-java-awt=gtk
--enable-gtk-cairo
--with-java-home=/usr/lib/jvm/java-1.5.0-gcj-5-armhf-cross/jre
--enable-java-home
--with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-5-armhf-cross
--with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-5-armhf-cross
--with-arch-directory=arm
--with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libgcj
--enable-objc-gc --enable-multiarch --enable-multilib
--disable-sjlj-exceptions --with-arch=armv7-a --with-fpu=vfpv3-d16
--with-float=hard --with-mode=thumb --disable-werror --enable-multilib
--enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=arm-linux-gnueabihf
--program-prefix=arm-linux-gnueabihf-
--includedir=/usr/arm-linux-gnueabihf/include
Thread model: posix
gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9

[2] TFTP from server 192.168.3.123; our IP address is 192.168.3.71
Filename 'zImage'.
Load address: 0x40008000
Loading: *


Let me know if you have any suggestions.
Paulo Neves