Link Error to __preinit_array_start

julvr julvr at broadcom.com
Tue Jan 12 14:01:07 UTC 2010




julvr wrote:
> 
> I'm trying to upgrade the toolchain and I'm getting the following errors
> when I build:
> 
> With output:
> /opt/toolchains/uclibc-crosstools-gcc-4.3.4/usr/lib/libc.a(__uClibc_main.os):
> In function `__uClibc_fini':
> __uClibc_main.c:(.text+0x20): undefined reference to `__fini_array_start'
> __uClibc_main.c:(.text+0x24): undefined reference to `__fini_array_end'
> /opt/toolchains/uclibc-crosstools-gcc-4.3.4/usr/lib/libc.a(__uClibc_main.os):
> In function `__uClibc_main':
> __uClibc_main.c:(.text+0x398): undefined reference to
> `__preinit_array_start'
> __uClibc_main.c:(.text+0x39c): undefined reference to
> `__preinit_array_end'
> __uClibc_main.c:(.text+0x3f4): undefined reference to `__init_array_start'
> __uClibc_main.c:(.text+0x3f8): undefined reference to `__init_array_end'
> /opt/toolchains/uclibc-crosstools-gcc-4.3.4/usr/bin/../lib/gcc/mips-linux-uclibc/4.3.4/../../../../mips-linux-uclibc/bin/ld:
> uclibc/libc.so.0-so: hidden symbol `__fini_array_end' isn't defined
> /opt/toolchains/uclibc-crosstools-gcc-4.3.4/usr/bin/../lib/gcc/mips-linux-uclibc/4.3.4/../../../../mips-linux-uclibc/bin/ld:
> final link failed: Nonrepresentable section on output
> 
> 
>>From Google, as far as I can tell, this is something to do with my
link-script.  But I haven't modified the linkscript (nor do I know anything
about them).  My target platform is elf32btsmip, so I'm assuming I'm using
elf32btsmip.x as a linkscript?
> 
> Does anyone have any ideas what this might be, or how to go about solving
> this?
> 
> Thanks
> 
> John
> 
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> uClibc at uclibc.org
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> 
> 


Ok, not getting very far very fast with this.  I've discovered that in the
compiler directory under /usr/lib, there's a file called libc.a, which, when
I do a readelf.c on, gives me this:

> /opt/toolchains/uclibc-crosstools-gcc-4.4.2-2/usr/lib> readelf -s libc.a |
> grep __fini_array_start
    14: 00000000     0 NOTYPE  GLOBAL HIDDEN  UND __fini_array_start

I read this to mean that within libc.a, there's a reference to
__fini_array_start, but that reference is HIDDEN??  Thus when I run mklibs,
the hidden reference gets removed, and I end up with a linker error.  My
question now is, how does a reference become hidden?? and what can I do
about it?



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