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 static inline const char *perf_reg_name(int id) 37 { 38 const char *reg_name = __perf_reg_name(id); 39 40 return reg_name ?: "unknown"; 41 } 42 43 #else 44 #define PERF_REGS_MASK 0 45 #define PERF_REGS_MAX 0 46 47 #define DWARF_MINIMAL_REGS PERF_REGS_MASK 48 49 static inline const char *perf_reg_name(int id __maybe_unused) 50 { 51 return "unknown"; 52 } 53 54 static inline int perf_reg_value(u64 *valp __maybe_unused, 55 struct regs_dump *regs __maybe_unused, 56 int id __maybe_unused) 57 { 58 return 0; 59 } 60 #endif /* HAVE_PERF_REGS_SUPPORT */ 61 #endif /* __PERF_REGS_H */ 62