[LLVMdev] LLVM for crosscompiling?

[Chris Lattner]

On Mon, 14 Apr 2008, Sunjae Park wrote:
> Hi, I'm still working on this problem by first trying code without the Altivec
> intrinsics. I'm trying to use the cross compiler on the c code outputted
> by "llc -march c" and have run into this linker problem (spewed by the cross
> compiler):

If you want to use llvm-gcc as a cross compiler, you must configure it as 
a cross compiler, and compile the output with the appropriate cross 
toolchain.  LLVM does not implicitly make your code portable, see:
http://llvm.org/docs/tutorial/LangImpl8.html#targetindep

for example.

-Chris

> Command line : error: L0039: reference to undefined symbol .fopen64 in
> file /tmp/cc4tgLu5.o
> Command line : error: L0039: reference to undefined symbol ._IO_putc in
> file /tmp/cc4tgLu5.o
> Command line : error: L0039: reference to undefined symbol ._IO_getc in
> file /tmp/cc4tgLu5.o
> Command line : error: L0039: reference to undefined symbol .stat64 in
> file /tmp/cc4tgLu5.o
> Command line : error: L0039: reference to undefined symbol .popen in
> file /tmp/cc4tgLu5.o
> Command line : error: L0039: reference to undefined symbol .pclose in
> file /tmp/cc4tgLu5.o
> Command line : error: L0039: reference to undefined symbol .gettimeofday in
> file /tmp/cc4tgLu5.o
>
> ...and so on. Any reason why llc is generating these symbols with a "." in
> front of them?
>
> Thanks.
> --
> Sunjae Park
> MS. Georgia Tech College of Computing
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>

-Chris

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