NewABI.
(ta0, ta1, ta2, ta3): Defined to t4..t7 on o32, and a4..a7 on
NewABI.
* sysdeps/mips/mips64/memcpy.S: Adjust register naming
conventions.
* sysdeps/mips/mips64/memset.S: Likewise.
* sysdeps/unix/mips/sysdep.S (__syscall_error) [_LIBC_REENTRANT]:
Use t0 instead of t4 as temporary.
Define.
* sysdeps/mips/sys/asm.h: Test _MIPS_ISA against them on all
ISA tests.
(ALSZ, ALMASK, SZREG, REG_S, REG_L): Define based on ABI, not ISA.
(PTR_ADD, etc): Test _MIPS_SZPTR instead of _MIPS_SZLONG.
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Use _MIPS_SZPTR
to decide whether to add padding.
* sysdeps/unix/sysv/linux/mips/bits/sigaction.h: Use _MIPS_SZPTR
to decide whether to add padding.
* sysdeps/unix/sysv/linux/mips/kernel_sigaction.h (struct
old_kernel_sigaction): Likewise.