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On Mon, Feb 21, 2011 at 07:45:41PM +0000, Richard Sandiford wrote:
David Daney<ddaney@caviumnetworks.com> writes:Background:
Current MIPS 32-bit ABIs (both o32 and n32) are restricted to 2GB of user virtual memory space. This is due the way MIPS32 memory space is segmented. Only the range from 0..2^31-1 is available. Pointer values are always sign extended.
Because there are not already enough MIPS ABIs, I present the ...
Proposal: A new ABI to support 4GB of address space with 32-bit pointers.
FWIW, I'd be happy to see this go into GCC.
So am I for the kernel primarily because it's not really a new ABI but an enhancement of the existing N32 ABI.
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