Ulrich Drepper wrote:
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> H. Peter Anvin wrote:
>>No, it requires 31-bit addresses, and there was a discussion about how
>>some things need 31-bit and some 32-bit addresses.
> That's completely irrelevant to my point. Whether MAP_32BIT actually
> has a 31 bit limit or not doesn't matter, it's limited as well in the
> possible mmap blocks it can return.
> The only thing I care about is to have a hint and not a fixed
> requirement for mmap(). All your proposals completely ignored this.
If your program is capable of handling an address with more than 32
bits, what point is there giving a hint? Either your program can handle
64-bit pointers or it cannot. Any program flexible enough to handle
either size dynamically would expend enough overhead checking that it
would be worse than if it just made a hard choice.
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This archive was generated by hypermail 2b29 : Thu May 15 2003 - 22:00:32 EST