HOST_R15           31 arch/x86/um/ptrace_64.c 	[R15 >> 3] = HOST_R15,
HOST_R15           20 arch/x86/um/shared/sysdep/ptrace_64.h #define REGS_R15(r) ((r)[HOST_R15])
HOST_R15           73 arch/x86/um/user-offsets.c 	DEFINE_LONGS(HOST_R15, R15);