unix: add functions PtraceGetRegSetArm64 and PtraceSetRegSetArm64

Since arm64 GNU/Linux version 2.6.34, PTRACE_GETREGS was replaced by PTRACE_GETREGSET,
in order to get or set the general purpose and floating-point register values,
PTRACE_GETREGSET/PTRACE_SETREGSET request type and a proper "NT_XXX" constant values
should be used. For the sake of not breaking the existing API, we added two functions
PtraceGetRegSetArm64 and PtraceSetRegSetArm64, they take an additional argument "addr",
and use PTRACE_GETREGSET and PTRACE_SETREGSET request types respectively.

Change-Id: I14c55733e15cea4b7d775187b1018fcb2880d6a9
Reviewed-on: https://go-review.googlesource.com/c/sys/+/204418
Run-TryBot: eric fang <eric.fang@arm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

unix/zptrace_mipsnn_linux.go

@@ -0,0 +1,50 @@
+// Code generated by linux/mkall.go generatePtracePair("mips", "mips64"). DO NOT EDIT.
+
+// +build linux
+// +build mips mips64
+
+package unix
+
+import "unsafe"
+
+// PtraceRegsMips is the registers used by mips binaries.
+type PtraceRegsMips struct {
+	Regs     [32]uint64
+	Lo       uint64
+	Hi       uint64
+	Epc      uint64
+	Badvaddr uint64
+	Status   uint64
+	Cause    uint64
+}
+
+// PtraceGetRegsMips fetches the registers used by mips binaries.
+func PtraceGetRegsMips(pid int, regsout *PtraceRegsMips) error {
+	return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
+}
+
+// PtraceSetRegsMips sets the registers used by mips binaries.
+func PtraceSetRegsMips(pid int, regs *PtraceRegsMips) error {
+	return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
+}
+
+// PtraceRegsMips64 is the registers used by mips64 binaries.
+type PtraceRegsMips64 struct {
+	Regs     [32]uint64
+	Lo       uint64
+	Hi       uint64
+	Epc      uint64
+	Badvaddr uint64
+	Status   uint64
+	Cause    uint64
+}
+
+// PtraceGetRegsMips64 fetches the registers used by mips64 binaries.
+func PtraceGetRegsMips64(pid int, regsout *PtraceRegsMips64) error {
+	return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
+}
+
+// PtraceSetRegsMips64 sets the registers used by mips64 binaries.
+func PtraceSetRegsMips64(pid int, regs *PtraceRegsMips64) error {
+	return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
+}