perf_regs.h 1.3 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __PERF_REGS_H
  3. #define __PERF_REGS_H
  4. #include <linux/types.h>
  5. #include <linux/compiler.h>
  6. struct regs_dump;
  7. struct sample_reg {
  8. const char *name;
  9. uint64_t mask;
  10. };
  11. #define SMPL_REG(n, b) { .name = #n, .mask = 1ULL << (b) }
  12. #define SMPL_REG2(n, b) { .name = #n, .mask = 3ULL << (b) }
  13. #define SMPL_REG_END { .name = NULL }
  14. enum {
  15. SDT_ARG_VALID = 0,
  16. SDT_ARG_SKIP,
  17. };
  18. int arch_sdt_arg_parse_op(char *old_op, char **new_op);
  19. uint64_t arch__intr_reg_mask(void);
  20. uint64_t arch__user_reg_mask(void);
  21. #ifdef HAVE_PERF_REGS_SUPPORT
  22. extern const struct sample_reg sample_reg_masks[];
  23. #include <perf_regs.h>
  24. #define DWARF_MINIMAL_REGS ((1ULL << PERF_REG_IP) | (1ULL << PERF_REG_SP))
  25. int perf_reg_value(u64 *valp, struct regs_dump *regs, int id);
  26. static inline const char *perf_reg_name(int id)
  27. {
  28. const char *reg_name = __perf_reg_name(id);
  29. return reg_name ?: "unknown";
  30. }
  31. #else
  32. #define PERF_REGS_MASK 0
  33. #define PERF_REGS_MAX 0
  34. #define DWARF_MINIMAL_REGS PERF_REGS_MASK
  35. static inline const char *perf_reg_name(int id __maybe_unused)
  36. {
  37. return "unknown";
  38. }
  39. static inline int perf_reg_value(u64 *valp __maybe_unused,
  40. struct regs_dump *regs __maybe_unused,
  41. int id __maybe_unused)
  42. {
  43. return 0;
  44. }
  45. #endif /* HAVE_PERF_REGS_SUPPORT */
  46. #endif /* __PERF_REGS_H */