[PATCH] Add a fallback mechanism for undefined atom.

[Shankar Easwaran]

On 9/3/2013 2:36 PM, Nick Kledzik wrote:
> On Sep 3, 2013, at 11:06 AM, Rui Ueyama <ruiu at google.com> wrote:
>> Nick, does Mach-O need symbol aliasing to be handled in the linker?
> Yes.  The darwin linker has command line options for adding aliases.
>
> Back when I first started working on the darwin linker, a big complaint from the compiler team was that mach-o did not support aliases like ELF did, so the compiler team kept having to special case lots of test cases and functionality that used __attribute__((alias(“xx”))) on darwin.
>
>
looks like ELF also needs the same functionality for implementing __wrap.

But in the case of the linker dealing with compiled .o's, the alias 
information is lost.

Does Darwin keep the alias information when the 
__attribute__((alias(“xx”)) is used.

Thanks

Shankar Easwaran