How to get 'IOPlatformUUID' on OS X 10.4?

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How to get 'IOPlatformUUID' on OS X 10.4?

I need to get UUID value on 10.4 but the command seems not to be supported here.

ioreg -rd1 -c IOPlatformExpertDevice | awk '/IOPlatformUUID/ { split($0, line, "\""); printf("%s\n", line[4]); }'

Above command is working fine on 10.5. Is this not supported on 10.4?

Also I am trying to fetch UUID using below code on 10.4, which is also not working:

void vlm getSystemUUIDMAC(char * uuid, int bufSize)
{
io registry_entryt ioRegistryRoot = IORegistryEntryFromPath(kIOMasterPortDefault, "IOService:/");
CFStringRef uuidCf = (CFStringRef) IORegistryEntryCreateCFProperty(ioRegistryRoot, CFSTR(kIOPlatformUUIDKey), kCFAllocatorDefault, 0);
IOObjectRelease(ioRegistryRoot);
CFStringGetCString(uuidCf, uuid, bufSize, kCFStringEncodingMacRoman);
CFRelease(uuidCf);
}

And the above code executes well on 10.5.

Any help would be appreciated.

iMac, Mac OS X (10.4.10)

Posted on Mar 28, 2011 10:41 PM

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Answer 1

ankur17 Author

Level 1

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Mar 31, 2011 4:14 AM in response to ankur17

Anyone..??

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Answer 2

BDAqua

Level 10

250,259 points

Mar 31, 2011 9:47 AM in response to ankur17

Hi ankur17, and a warm welcome to the forums! 🙂

I was hoping somebody could answer that here, but I guess not.

Xcode 3.x automatically adds a UUID load command to the executable file inside your kernel extension. However, the kernel linker in Mac OS X 10.4.x on PowerPC-based systems doesn't know how to handle this UUID load command, so the linker rejects the load request.

You can work around this by adding -Xlinker -no_uuid to the Other Linker Flags build setting for the PowerPC side only of your kext using the following steps.

http://developer.apple.com/library/mac/#qa/qa1628/_index.html

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