HOST_R12 28 arch/x86/um/ptrace_64.c [R12 >> 3] = HOST_R12, HOST_R12 17 arch/x86/um/shared/sysdep/ptrace_64.h #define REGS_R12(r) ((r)[HOST_R12]) HOST_R12 70 arch/x86/um/user-offsets.c DEFINE_LONGS(HOST_R12, R12);