Re: dlsym(...) and Intel Macs
Re: dlsym(...) and Intel Macs
- Subject: Re: dlsym(...) and Intel Macs
- From: "Jordan K. Hubbard" <email@hidden>
- Date: Mon, 17 Jul 2006 21:33:52 -0700
Wouldn't dlopen() be the first thing to fail if the bundle wasn't of
the appropriate architecture? I assume Damien is also properly
checking the value of mainHandle against NULL when it's returned...
- Jordan
On Jul 17, 2006, at 8:01 PM, Eric Albert wrote:
On Jul 17, 2006, at 7:08 PM, Damien Sorresso wrote:
Does dlsym(...) not work the same on Intel Macs? I have some symbol
loading code that works just fine on PowerPC Macs, but on Intel
Macs, it returns NULL. Here is a line.
int *debug_addr = (int *)dlsym(mainHandle, "__debug_level");
This loads the symbol named `__debug_level'. This code is executed
from a dynamically-loaded bundle, and it loads the address of the
symbol from the main executable. On PowerPC, I get the address
you'd get by doing `nm' on the executable. On Intel Macs, I get
NULL. Any ideas what's happening here?
Is your bundle universal (or at least built for Intel)? Does nm -
arch i386 show the same thing for this sybmol as nm -arch ppc does?
-Eric
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