REG_OFFSET_NAME_64 45 tools/perf/arch/x86/util/dwarf-regs.c # define REG_OFFSET_NAME_64(n, r) {.name = n, .offset = offsetof(struct pt_regs, r)} REG_OFFSET_NAME_64 48 tools/perf/arch/x86/util/dwarf-regs.c # define REG_OFFSET_NAME_64(n, r) {.name = n, .offset = -1}