[U-Boot-Users] Build error on strcmp()

[Martin Krause]

Hi Shinya Kuribayashi,

sorry for the late response, I was on vacation ...

shinya.kuribayashi at necel.com wrote on Tuesday, August 14, 2007 1:29 PM:
> > commit 8092fef4c29b395958bb649647da7e3775731517
> > Author: Martin Krause <Martin.Krause at tqs.de>
> > Date:   Tue Dec 12 14:26:01 2006 +0100
> > 
> >     Add functions to list of exported functions
> > 
> >     Additionally export the following fuctions (to make trab_config
> > build again): 
> >     - simple_strtol()
> >     - strcmp()
> > 
> >     Also bump the ABI version to reflect this change
> > 
> >     Signed-off-by: Martin Krause <martin.krause at tqs.de>
> 
> This breaks my MIPS build:

Oh, sorry about that!

> common/libcommon.a(exports.o)(.text+0xdc): In function
> `jumptable_init':
> /home/skuribay/bootloader/u-boot/u-boot.git/common/exports.c:32:
> undefined reference to `strcmp' make: *** [u-boot] Error 1 
> 
> We MIPS have arch-specific strcmp defined in <asm/string.h>.
> Since strcmp is inlined, we couldn't refer them by function pointer.
> The nm of lib_generic/string.o is like this:
> 
>              U _gp_disp
>              U malloc
>     00000610 T memchr
>     00000520 T memcmp
>     00000474 T memcpy
>     000004a4 T memmove
>     00000448 T memset
>     00000000 T strcat
>     00000084 T strchr
>     00000198 T strdup
>     000000c0 T strlen
>     00000038 T strncat
>     0000015c T strnlen
>     00000270 T strpbrk
>     000000e4 T strrchr
>     00000380 T strsep
>     00000210 T strspn
>     00000550 T strstr
>     000003ec T strswab
>     000002c0 T strtok
>     00000004 C ___strtok
> 
> I think all architectures which have __HAVE_ARCH_STRCMP defined will
> encounter this error. What is the proper workaround?

Sorry, I'm no linker expert - so no idea :(

Best Regards,
Martin Krause
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