import objects shared with multiple files

Hello

I have a shared object that I would like to import with "Import shared objects" to create a library, but it contains a function defined in another line (#nclude), so I can't use the lvlib that produces the LV.

I can solve this problem? How do I create a shared object that include other .o?

Thank you.

salvo980 wrote:

The first among other .cpp for use function .cpp file. How can I include other .o? I have to use, for example:

g++ name.o -shared -o libname.so

with the '-l' option?

g++ name.o -shared -o libname.so -L /usr/lib/name2.so

Is this good?

Thank you.

It really depends. If you have two 'clean' cpp files, the simplest solution is to simply link the .o files all together in the phase of final link in listing them all as input for the llink gcc command file. Otherwise if your name2.so file already exists, you shouldn't really need to do anything special other than to ensure that it exists on the target system and is communicated to the linker 'ld' through the ldshared tool execution.

Unlike Windows where each import must be paid at the time of link, either by an implementation of actual function in a file object or by the bias and the import file object library that performs dynamic load-time linking, shared Linux elf libraries do not need that. The linker during the generation of the shared library object file requires simply that the dynamic loader "ld" will be at the time of loading the shared library object file, resolve the symbols accordingly. That the purpose of the shared library must of course be installed and recognized by the linker to DL on the target, as mentioned above, copying in a well-known directory on the target and running ldshared awareness in the cache of the ld.

Tags: NI Software

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