HOST_R8 24 arch/x86/um/ptrace_64.c [R8 >> 3] = HOST_R8, HOST_R8 13 arch/x86/um/shared/sysdep/ptrace_64.h #define REGS_R8(r) ((r)[HOST_R8]) HOST_R8 66 arch/x86/um/user-offsets.c DEFINE_LONGS(HOST_R8, R8);