linux-user/sparc64/syscall.h - third_party/qemu - Git at Google

 struct target_pt_regs {
 	target_ulong u_regs[16];
 	target_ulong tstate;
 	target_ulong pc;
 	target_ulong npc;
 	target_ulong y;
 	target_ulong fprs;
 };

 #define UNAME_MACHINE "sun4u"
	struct target_pt_regs {
	target_ulong u_regs[16];
	target_ulong tstate;
	target_ulong pc;
	target_ulong npc;
	target_ulong y;
	target_ulong fprs;
	};

	#define UNAME_MACHINE "sun4u"