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 const char *perf_reg_name(int id, const char *arch); 35 int perf_reg_value(u64 *valp, struct regs_dump *regs, int id); 36 37 #else 38 #define PERF_REGS_MASK 0 39 #define PERF_REGS_MAX 0 40 41 #define DWARF_MINIMAL_REGS PERF_REGS_MASK 42 43 static inline const char *perf_reg_name(int id __maybe_unused, const char *arch __maybe_unused) 44 { 45 return "unknown"; 46 } 47 48 static inline int perf_reg_value(u64 *valp __maybe_unused, 49 struct regs_dump *regs __maybe_unused, 50 int id __maybe_unused) 51 { 52 return 0; 53 } 54 #endif /* HAVE_PERF_REGS_SUPPORT */ 55 #endif /* __PERF_REGS_H */ 56