ARM

-fomit-frame-pointer

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Explanatory diagram of frame pointers, showing a link from the x86-64 register %rbp to the start of the current frame, which holds the prior value of %rbp that points to the top of the previous frame, and so on.

This is an elaboration of a post I made in a Swift Forums thread, SE-0419: Swift Backtracing API. The question was raised whether an official Swift backtracer should try to support code that doesn’t use frame pointers. Which immediately raised the question – in my mind – of if anyone is still using the “optimisation”… Read more

Swift on Raspberry Pi (in 2019)

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After the horrible experience just acquiring, installing, & configuring a basic Raspberry Pi, I was anticipating much effort – likely ending in failure – to get Swift working. I was pleasantly surprised. There are multiple ways to do it, apparently. One would think that there’d be the correct & working packages already available through apt,… Read more