Dear Erwin
Thanks for you help.
I have some questions yet:
If I compile with "-fpic" only without "-msingle-pic-base ", The
application  don't work,but if I assure the Code and data section of
the relative position has not changed when I modify the uClinux
bin_flat loader,the app work good.uClinux can offer the patch of
support only "-fpic" to me?
――――――――
When you compile with -fpic, -msingle-pic-base must always be used to
make sure that variables can be adressed with the help of a base
register (r10) that is set up by the uClibc startup code.

-Erwin

-- 
www.mcuos.com
Best Regarts,
        Vincen
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