One of the most anticipated features of Mac OS X Leopard amongst the technical community was the port of Sun's DTrace utility for application and system profiling. DTrace is a powerful, low-level dynamic tracing framework that allows system administrators and developers to trace applications for tuning or troubleshooting purposes.
Recently, Adam Leventhal, one of DTrace's initial developers, discovered that Apple's implementation creates a way for a program to exclude itself from being traced. Namely, he was unsuccessful at tracing iTunes, and found that Apple had added a method of disabling probing on certain applications defined with the directive P_LNOATTACH.
Wow. So Apple is explicitly preventing DTrace from examining or recording data for processes which don't permit tracing. This is antithetical to the notion of systemic tracing, antithetical to the goals of DTrace, and antithetical to the spirit of open source. I'm sure this was inserted under pressure from ISVs, but that makes the pill no easier to swallow.
Since the initial publication of the blog entry last week, the story has begun to pop uparoundthe mac web.
The practice is not entirely new to Apple. A commenter on Adam Leventhal's blog noted that Apple used the same directive to prevent GDB tracing on iTunes. Additionally, the implementation of this directive appears to be limited to iTunes (for the moment?), so many are speculating that the move is to protect Apple's FairPlay DRM.
To present an alternate view, Apple has extended Java, Ruby, Python, and Perl to include DTrace support, and Apple has built a GUI front-end called Instruments. Also the issue may eventually become moot with Apple's stated desire to move towards DRM-free music (though DRM video remains common).
Friday December 5, 2025 9:40 am PST by Tim Hardwick
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below.
Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
Monday December 8, 2025 4:54 am PST by Tim Hardwick
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker.
According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
Monday December 8, 2025 10:18 am PST by Juli Clover
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found.
Registered developers and public beta testers can download the betas from the Settings app on...
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports.
In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...
Monday December 1, 2025 2:40 am PST by Tim Hardwick
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max.
One thing worth...
Monday December 8, 2025 9:23 am PST by Joe Rossignol
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future.
"I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman.
Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports.
Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Monday December 8, 2025 11:10 am PST by Juli Clover
Apple and Google are teaming up to make it easier for users to switch between iPhone and Android smartphones, according to 9to5Google. There is a new Android Canary build available today that simplifies data transfer between two smartphones, and Apple is going to implement the functionality in an upcoming iOS 26 beta.
Apple already has a Move to iOS app for transferring data from an Android...
Friday December 5, 2025 10:08 am PST by Joe Rossignol
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone.
In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
Apple today announced that Fitness+ is expanding to 28 new markets on December 15 in the service's largest international rollout since launch, accompanied by new language dubbing and a K-Pop music genre.
Apple Fitness+ will become available in Chile, Hong Kong, India, the Netherlands, Singapore, Taiwan, and additional regions on December 15, with Japan scheduled to follow early next year....
