[LLVMdev] Ответ: using dynamic libraries from bytecode?

Chris Lattner sabre at nondot.org
Wed Jun 18 22:21:11 PDT 2008

On Jun 18, 2008, at 12:27 PM, Yaroslav Kavenchuk wrote:

> Mike Stump wrote:
>>> Is it possible to use dynamic library (*.so *.dll) from bytecode?
>>> If "yes" - how?
>> dlopen?  That's be one way.  Also, most systems have shared libraries
>> in /usr/lib and these routines are meant to be linked against and
>> used.  For example, on darwin, there sinf is resolved from a shared
>> library, you declare it and call it, as normal.  You should be able  
>> to
>> use llvm-gcc to see the bytecode of such a use of a routine from a
>> dynamic library.
> Thanks! But... small example (mingw):
> $ llvm-gcc.exe -I/mingw/include gcd_ui.c -L/mingw/lib -lgmp -o  
> gcd_ui.exe
> $ ./gcd_ui.exe
> All works!
> $ lli gcd_ui.bc
> ERROR: Program used external function '__gmpz_init_set_ui' which could
> not be resolved!
> This application has requested the Runtime to terminate it in an  
> unusual way.
> Please contact the application's support team for more information.

Try: lli -load /path/to/foo.so gcd_ui.bc

Replace ".so" with ".dylib" or ".dll" as appropriate.


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