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Linux Developers Looking At Retiring The x32 ABI

Linux Hardware Reviews & Performance Benchmarks, Open-Source Ne… May 27, 2026
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The Linux x32 ABI for x86_64 processors allow making use of the full 64-bit register file and wide data path but retaining 32-bit pointers to provide for a smaller memory footprint when not needing 64-bit pointers. Linux x32 came to the party late and didn't enjoy much adoption over the years and is now looking at possible removal from the Linux kernel...

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