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by pmjordan
5138 days ago
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In fairness, x86-64 Linux has supported running 32-bit x86 processes from the start (likewise for PPC and PPC64). It just so happens that the difference between 32-bit and 64-bit CPU modes is quite significant on x86. So this new ABI for using 32 bit pointers while the CPU is in 64-bit mode is really Intel/AMD's "fault" more than Linux's - the 32-bit mode's register starvation is particularly crippling. (Actually, if anyone is to blame, it's Microsoft "fault" for tying consumer computing down to x86) |
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