What’s your experience here? I’m interested to hear about projects that you have done this for.
The source engine has code that’s over 20 years old. A monolithic project like a game engine, which is statically and dynamically linked with god knows how many libraries they don’t even have code for, let alone permission, to compile in a different architecture, is not gonna be an easy thing to do.
I’ve brought various apps, bundles, and frameworks from PowerPC to Intel to 64-bit to ARM ever since macOS 10.0 first launched. Usually the most difficult parts were:
During the PPC to Intel transition, converting code that expected all data to be big-endian over to handling little-endian data, and catching integer division by zero before sending such operations to the CPU
During the 64-bit transition, switching from all the APIs Apple removed over to newer APIs, if not already done, and converting all code that expected integers and pointers to be 32-bit over to 64-bit
During the ARM transition, converting code that abused variadic functions to code that used them properly, and converting all code that expected long doubles to be 128-bit over to 64-bit (I know some developers were burned by the VM page size change, but that didn’t affect anything I did)
But yeah, usually the most difficult part of the transition is managing the dependencies. Whenever Apple transitions CPU architectures, if your app depends on a closed-source third-party library or kernel extension made by developers that went out of business years ago, you’re more or less screwed unless you can find or build a replacement.
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What’s your experience here? I’m interested to hear about projects that you have done this for.
The source engine has code that’s over 20 years old. A monolithic project like a game engine, which is statically and dynamically linked with god knows how many libraries they don’t even have code for, let alone permission, to compile in a different architecture, is not gonna be an easy thing to do.
I’ve brought various apps, bundles, and frameworks from PowerPC to Intel to 64-bit to ARM ever since macOS 10.0 first launched. Usually the most difficult parts were:
But yeah, usually the most difficult part of the transition is managing the dependencies. Whenever Apple transitions CPU architectures, if your app depends on a closed-source third-party library or kernel extension made by developers that went out of business years ago, you’re more or less screwed unless you can find or build a replacement.