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).
Monday November 10, 2025 1:08 pm PST by Juli Clover
Today marks the fifth anniversary of the Apple silicon chip that replaced Intel chips in Apple's Mac lineup. The first Apple silicon chip, the M1, was unveiled on November 10, 2020. The M1 debuted in the MacBook Air, Mac mini, and 13-inch MacBook Pro.
The M1 chip was impressive when it launched, featuring the "world's fastest CPU core" and industry-leading performance per watt, and it's only ...
Tuesday November 11, 2025 9:48 am PST by Joe Rossignol
Apple released the first iOS 26.2 beta last week. The upcoming update includes a handful of new features and changes on the iPhone, including a new Liquid Glass slider for the Lock Screen's clock, offline lyrics in Apple Music, and more.
In a recent press release, Apple confirmed that iOS 26.2 will be released to all users in December, but it did not provide a specific release date....
Monday November 10, 2025 1:55 am PST by Tim Hardwick
Apple will conceal the front-facing camera under the screen of its 2027 iPhone, a Chinese leaker said today, corroborating reports that Apple's 20th anniversary iPhone will have no visible cutouts in the display.
Weibo-based account Digital Chat Station said Apple's development of under-screen camera technology was progressing as planned for adoption in 2027, one year after it will...
Tuesday November 11, 2025 1:23 am PST by Tim Hardwick
Apple has teamed up with Japanese fashion house ISSEY MIYAKE to launch iPhone Pocket, a 3D-knitted limited edition accessory designed to carry an iPhone, AirPods, and other everyday items.
The accessory is like a stretchy pocket, not unlike an iPod Sock, but elongated to form a strap made of a ribbed, elastic textile that fully encloses an iPhone yet allows you to glimpse the display...
Monday November 10, 2025 11:41 am PST by Juli Clover
The thin, light iPhone Air sold so poorly that Apple has decided to delay the launch of the next-generation iPhone Air that was scheduled to come out alongside the iPhone 18 Pro, reports The Information.
Apple initially planned to release a new iPhone Air in fall 2026, but now that's not going to happen.
Since the iPhone Air launched in September, there have been reports of poor sales...
Apple is expected to announce a new HomePod mini imminently, headlining with new chips. Here are all of the new features we're expecting.
The second-generation HomePod mini is highly likely to contain a more up-to-date chip for more advanced computational audio and improved responsiveness. The current HomePod mini is equipped with the Apple Watch Series 5's S5 chip from 2019. Apple is likely ...
Wednesday November 12, 2025 9:15 am PST by Joe Rossignol
Apple today announced that iPhone users can now create a Digital ID in the Apple Wallet app based on information from their U.S. passport.
To create and present a Digital ID based on a U.S. passport, you need:
An iPhone 11 or later running iOS 26.1 or later, or an Apple Watch Series 6 or later running watchOS 26.1 or later
Face ID or Touch ID and Bluetooth turned on
An Apple Account ...
Cellular carriers have always offered big savings on the newest iPhone models during the holidays, and Black Friday 2025 sales have kicked off at AT&T, Verizon, T-Mobile, and more. Right now we're tracking notable offers on the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, and iPhone Air. For even more savings, keep an eye on older models during the holiday shopping season.
Note: MacRumors is...
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon.
Note: MacRumors is an affiliate partner with some of these vendors. When ...
Wednesday November 12, 2025 11:42 am PST by Joe Rossignol
While it was rumored that Apple planned to release new versions of the HomePod mini, Apple TV, and AirTag this year, it is no longer clear if that will still happen.
Back in January, Bloomberg's Mark Gurman said Apple planned to release new HomePod mini and Apple TV models "toward the end of the year," while he at one point expected a new AirTag to launch "around the middle of 2025." Yet,...
