Yes.  Are you disassembling a release version or a debug version?

> On Apr 3, 2022, at 2:36 PM, Martin Wierschin via Cocoa-dev 
> <cocoa-dev@lists.apple.com> wrote:
> 
> Hi everyone,
> 
> I have a question that's been an irritating me for a long time. Is there any 
> way to get Xcode (or other tools) to show Objective-C selector names in 
> disassembled framework's code?
> 
> Back in the good old days viewing assembly for any Obj-C method in Xcode 
> would automatically give you this information. Xcode would always show you 
> each selector's name (as a C string) alongside the SEL value in the assembly 
> listing, usually right before each call to objc_msgSend. This was incredibly 
> useful when you had to workaround Apple bugs, or just to poke around to see 
> how things were implemented.
> 
> I forget when this changed. I know it was triggered by optimizations to the 
> Obj-C runtime. But not being able to see selector names is like being 
> blindfolded. Is there a good way to discover this information in the modern 
> runtime / toolchains?
> 
> Thanks for any tips!
> 
> ~Martin Wierschin 
> 
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