[yocto] Cannot run simple binary executable file

[Wy kevinthesun]

Problem solved! It turns out it is the mismatch of ld-linux.so. I referred
to this post
http://stackoverflow.com/questions/24543474/cross-compiled-gnu-arm-beagleboneblack-from-windows-runtime-error-on-elf,
and found my problem was exactly the same: the binary needs
/lib/ld-linux.so.3 to run, but that file is missing in the 1.5.1 yocto
system on board. Then I copied ld-linux.so.3 file from Yocto toolchain on
my pc. Then it works!

Thank you!

2014-10-07 8:21 GMT-07:00 Nicolas Dechesne <nicolas.dechesne at linaro.org>:

> On Tue, Oct 7, 2014 at 1:07 PM, Wy kevinthesun <kevinthesunwy at gmail.com>
> wrote:
> > Hi, I am new to Yocto Project and learning to develop software on Atmel
> > SAMA5D3 Xplained board, on which Yocto 1.5.1 is pre-built. I followed the
> > instructions and got the 1.6.1 toolchain
> >
> > poky-eglibc-i686-core-image-sato-armv7a-vfp-neon-toolchain-1.6.1.sh.
> >
> > I can compile the simple HelloWorld program and binary file is made.
> Then I
> > copied the binary file
> >
> > into board and tried to run it. However, when I changed to the file
> located
> > directory and type
> >
> > "./Hello", it returned "sh: ./Hello: No such file or directory". Then I
> > tried "sh Hello", it gave
> >
> > me  "Hello: Hello: cannot execute binary file ". If I type "file Hello",
> it
> > gives "Hello: ELF 32-bit
> >  LSB  executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses
> > shared libs), for GNU/Linux 2.6.16,
> > BuildID[sha1]=9933a2d2ce212099c5f9902a8e612c1423e136da, not stripped". I
> > googled and someone
> >
> > said the problem may be the toolchain. Then I tried 1.3, 1.5.1 toolchain
> for
> > arm, but still same
> >
> > error. Could you please help me about this problem?
>
>
> i suspect this is an armv7 soft-float vs hard-float mismatch. Either
> your prebuilt OE system is configured with soft-float and the
> toolchain you use compiled for hard-float by default, or the other way
> around. can you check how you've compile HelloWolrd and check the
> other ABI?
>
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