dwarf-regs.c 1.8 KB

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