- turn the whole iPhoneOS_swi.s file into lowercase letters
- replace .global with .globl
- to use the code in a C file, write:

extern int swi_exit();
extern int syscall_getgid();
// … and so on with any other function you want to use
// note that the extern functions here have the leading underscore removed!

int main (int argc, char *argv[])
{
#if !TARGET_IPHONE_SIMULATOR
// check if debugger is attached (cracking attempt?)
int root = syscall_getgid();
if (root == 0)
{
swi_exit();
}
#endif

// your code here

return 0;
}

Note: i don’t know if the code belongs directly after main or not. I see it returns 501 with debugger attached by running a debug build with Build & Go (Debug). So it doesn’t quit. But maybe it would if you attempt to crack it? I haven’t checked that.

I get the same when i try to use __asm__ (“MOV R12″)

I’m compiling for iPhone OS 2.2.1

I already found out from another website that it should be .globl and not .global

Are there any specific project settings that must be set? Or more importantly: did you ever compile this code in an iPhone project?

**This is a guest article by Will Strafach. Unlike you, this person got off his ass and earned some $$ writing about what he loves. He has accomplished something with his life, he has written for……