1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * dwarf-regs.c : Mapping of DWARF debug register numbers into register names. 4 * 5 * Written by: Masami Hiramatsu <mhiramat@kernel.org> 6 */ 7 8 #include <util.h> 9 #include <debug.h> 10 #include <dwarf-regs.h> 11 #include <elf.h> 12 #include <linux/kernel.h> 13 14 #ifndef EM_AARCH64 15 #define EM_AARCH64 183 /* ARM 64 bit */ 16 #endif 17 18 /* Define const char * {arch}_register_tbl[] */ 19 #define DEFINE_DWARF_REGSTR_TABLE 20 #include "../arch/x86/include/dwarf-regs-table.h" 21 #include "../arch/arm/include/dwarf-regs-table.h" 22 #include "../arch/arm64/include/dwarf-regs-table.h" 23 #include "../arch/sh/include/dwarf-regs-table.h" 24 #include "../arch/powerpc/include/dwarf-regs-table.h" 25 #include "../arch/s390/include/dwarf-regs-table.h" 26 #include "../arch/sparc/include/dwarf-regs-table.h" 27 #include "../arch/xtensa/include/dwarf-regs-table.h" 28 29 #define __get_dwarf_regstr(tbl, n) (((n) < ARRAY_SIZE(tbl)) ? (tbl)[(n)] : NULL) 30 31 /* Return architecture dependent register string (for kprobe-tracer) */ 32 const char *get_dwarf_regstr(unsigned int n, unsigned int machine) 33 { 34 switch (machine) { 35 case EM_NONE: /* Generic arch - use host arch */ 36 return get_arch_regstr(n); 37 case EM_386: 38 return __get_dwarf_regstr(x86_32_regstr_tbl, n); 39 case EM_X86_64: 40 return __get_dwarf_regstr(x86_64_regstr_tbl, n); 41 case EM_ARM: 42 return __get_dwarf_regstr(arm_regstr_tbl, n); 43 case EM_AARCH64: 44 return __get_dwarf_regstr(aarch64_regstr_tbl, n); 45 case EM_SH: 46 return __get_dwarf_regstr(sh_regstr_tbl, n); 47 case EM_S390: 48 return __get_dwarf_regstr(s390_regstr_tbl, n); 49 case EM_PPC: 50 case EM_PPC64: 51 return __get_dwarf_regstr(powerpc_regstr_tbl, n); 52 case EM_SPARC: 53 case EM_SPARCV9: 54 return __get_dwarf_regstr(sparc_regstr_tbl, n); 55 case EM_XTENSA: 56 return __get_dwarf_regstr(xtensa_regstr_tbl, n); 57 default: 58 pr_err("ELF MACHINE %x is not supported.\n", machine); 59 } 60 return NULL; 61 } 62