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