On Sep 20, 2006, at 12:38 PM, Shaun Wexler wrote:
On Sep 20, 2006, at 10:17 AM, Dan Smith wrote:
... sample code by which a program can distinguish whether it's running native on an i386 system, under Rosetta on an i386, or on a Power Macintosh.
Any pointers to documentation? Header files? Source code?
enum { SKWNativePPC, SKWRosettaPPC, SKWNativeI386 };
long SKWCurrentArch(void) {
#if __i386__
return SKWNativeI386;
#elif __ppc__
register long r;
asm volatile (" li %0, 0\n b 0f\n .long 0x14400004\n li %0, 1\n 0:" : "=&r" (r));
return r; // r ? SKWRosettaPPC : SKWNativePPC;
#else
#error unknown arch
#endif
}
Please don't do anything like this. That's completely unsupported and could break. There's a documented way to figure out if you're running translated, and that's the only way you should check it.
-Eric
