On Mon, Feb 21, 2011 at 07:45:41PM +0000, Richard Sandiford wrote: > David Daney <ddaney@xxxxxxxxxxxxxxxxxx> 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. Ralf
