tools/perf/util/perf_regs.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_REGS_H
   3 #define __PERF_REGS_H
   4
   5 #include <linux/types.h>
   6 #include <linux/compiler.h>
   7
   8 struct regs_dump;
   9
  10 struct sample_reg {
  11         const char *name;
  12         uint64_t mask;
  13 };
  14 #define SMPL_REG(n, b) { .name = #n, .mask = 1ULL << (b) }
  15 #define SMPL_REG2(n, b) { .name = #n, .mask = 3ULL << (b) }
  16 #define SMPL_REG_END { .name = NULL }
  17
  18 enum {
  19         SDT_ARG_VALID = 0,
  20         SDT_ARG_SKIP,
  21 };
  22
  23 int arch_sdt_arg_parse_op(char *old_op, char **new_op);
  24 uint64_t arch__intr_reg_mask(void);
  25 uint64_t arch__user_reg_mask(void);
  26
  27 #ifdef HAVE_PERF_REGS_SUPPORT
  28 extern const struct sample_reg sample_reg_masks[];
  29
  30 #include <perf_regs.h>
  31
  32 #define DWARF_MINIMAL_REGS ((1ULL << PERF_REG_IP) | (1ULL << PERF_REG_SP))
  33
  34 int perf_reg_value(u64 *valp, struct regs_dump *regs, int id);
  35
  36 #else
  37 #define PERF_REGS_MASK  0
  38 #define PERF_REGS_MAX   0
  39
  40 #define DWARF_MINIMAL_REGS PERF_REGS_MASK
  41
  42 static inline const char *perf_reg_name(int id __maybe_unused)
  43 {
  44         return "unknown";
  45 }
  46
  47 static inline int perf_reg_value(u64 *valp __maybe_unused,
  48                                  struct regs_dump *regs __maybe_unused,
  49                                  int id __maybe_unused)
  50 {
  51         return 0;
  52 }
  53 #endif /* HAVE_PERF_REGS_SUPPORT */
  54 #endif /* __PERF_REGS_H */