| // SPDX-License-Identifier: GPL-2.0 |
| #include <errno.h> |
| #include <dwarf-regs.h> |
| #include "../../../arch/s390/include/uapi/asm/perf_regs.h" |
| |
| int __get_dwarf_regnum_for_perf_regnum_s390(int perf_regnum) |
| { |
| static const int dwarf_s390_regnums[] = { |
| [PERF_REG_S390_R0] = 0, |
| [PERF_REG_S390_R1] = 1, |
| [PERF_REG_S390_R2] = 2, |
| [PERF_REG_S390_R3] = 3, |
| [PERF_REG_S390_R4] = 4, |
| [PERF_REG_S390_R5] = 5, |
| [PERF_REG_S390_R6] = 6, |
| [PERF_REG_S390_R7] = 7, |
| [PERF_REG_S390_R8] = 8, |
| [PERF_REG_S390_R9] = 9, |
| [PERF_REG_S390_R10] = 10, |
| [PERF_REG_S390_R11] = 11, |
| [PERF_REG_S390_R12] = 12, |
| [PERF_REG_S390_R13] = 13, |
| [PERF_REG_S390_R14] = 14, |
| [PERF_REG_S390_R15] = 15, |
| [PERF_REG_S390_FP0] = 16, |
| [PERF_REG_S390_FP1] = 20, |
| [PERF_REG_S390_FP2] = 17, |
| [PERF_REG_S390_FP3] = 21, |
| [PERF_REG_S390_FP4] = 18, |
| [PERF_REG_S390_FP5] = 22, |
| [PERF_REG_S390_FP6] = 19, |
| [PERF_REG_S390_FP7] = 23, |
| [PERF_REG_S390_FP8] = 24, |
| [PERF_REG_S390_FP9] = 28, |
| [PERF_REG_S390_FP10] = 25, |
| [PERF_REG_S390_FP11] = 29, |
| [PERF_REG_S390_FP12] = 26, |
| [PERF_REG_S390_FP13] = 30, |
| [PERF_REG_S390_FP14] = 27, |
| [PERF_REG_S390_FP15] = 31, |
| [PERF_REG_S390_MASK] = 64, |
| [PERF_REG_S390_PC] = 65, |
| }; |
| |
| if (perf_regnum == 0) |
| return 0; |
| |
| if (perf_regnum < 0 || perf_regnum > (int)ARRAY_SIZE(dwarf_s390_regnums) || |
| dwarf_s390_regnums[perf_regnum] == 0) |
| return -ENOENT; |
| |
| return dwarf_s390_regnums[perf_regnum]; |
| } |
