Thread: Symbol not found?

Hi,
My Source Insight (a code reading software) could not find the definition of the symbol "_mfn", then I searched for the whole project of source files but still couldn't find it's definition. How can that be??? Thanks in advance.

Here's the code:

Code:

static inline mfn_t gfn_to_mfn(struct domain *d, unsigned long gfn)
{
    if ( !paging_mode_translate(d) )
        return _mfn(gfn); /* It is HERE. */
    if ( likely(current->domain == d) )
        return gfn_to_mfn_current(gfn);
    else 
        return gfn_to_mfn_foreign(d, gfn);
}

maybe it's a define.

I think it does, for the code is from a release version of an open source project. Could that symbol be something related with the compiler? But "_mfn" which stands for "Machine Frame Number" doesn't look like a compiler-related thing.

Yes, I did the simple string search, and only found the using of the _mfn macro/function or whatever.

Originally Posted by Salem

Well if it compiles, then it must be in a file which isn't in your project.

Perhaps try a directory search using explorer, or say "grep -R" to search all the files in the project tree.

Still no satisfying result
Someone might be kind enough to have a try. The source of the whole project is here:
http://bits.xensource.com/oss-xen/re...-3.1.0-src.tgz