14ea42b18SMasami Hiramatsu #ifndef _PROBE_FINDER_H 24ea42b18SMasami Hiramatsu #define _PROBE_FINDER_H 34ea42b18SMasami Hiramatsu 4804b3606SMasami Hiramatsu #include <stdbool.h> 54a58e611SArnaldo Carvalho de Melo #include "util.h" 64235b045SMasami Hiramatsu #include "probe-event.h" 74a58e611SArnaldo Carvalho de Melo 84ea42b18SMasami Hiramatsu #define MAX_PROBE_BUFFER 1024 94ea42b18SMasami Hiramatsu #define MAX_PROBES 128 104ea42b18SMasami Hiramatsu 114ea42b18SMasami Hiramatsu static inline int is_c_varname(const char *name) 124ea42b18SMasami Hiramatsu { 134ea42b18SMasami Hiramatsu /* TODO */ 144ea42b18SMasami Hiramatsu return isalpha(name[0]) || name[0] == '_'; 154ea42b18SMasami Hiramatsu } 164ea42b18SMasami Hiramatsu 1789fe808aSIngo Molnar #ifdef HAVE_DWARF_SUPPORT 18ff741783SMasami Hiramatsu 19ff741783SMasami Hiramatsu #include "dwarf-aux.h" 20ff741783SMasami Hiramatsu 21ff741783SMasami Hiramatsu /* TODO: export debuginfo data structure even if no dwarf support */ 22ff741783SMasami Hiramatsu 23ff741783SMasami Hiramatsu /* debug information structure */ 24ff741783SMasami Hiramatsu struct debuginfo { 25ff741783SMasami Hiramatsu Dwarf *dbg; 26576b5237SMasami Hiramatsu Dwfl_Module *mod; 27ff741783SMasami Hiramatsu Dwfl *dwfl; 28ff741783SMasami Hiramatsu Dwarf_Addr bias; 29ff741783SMasami Hiramatsu }; 30ff741783SMasami Hiramatsu 31ff741783SMasami Hiramatsu extern struct debuginfo *debuginfo__new(const char *path); 32ff741783SMasami Hiramatsu extern struct debuginfo *debuginfo__new_online_kernel(unsigned long addr); 33ff741783SMasami Hiramatsu extern void debuginfo__delete(struct debuginfo *self); 34ff741783SMasami Hiramatsu 350e60836bSSrikar Dronamraju /* Find probe_trace_events specified by perf_probe_event from debuginfo */ 36ff741783SMasami Hiramatsu extern int debuginfo__find_trace_events(struct debuginfo *self, 37ff741783SMasami Hiramatsu struct perf_probe_event *pev, 380e60836bSSrikar Dronamraju struct probe_trace_event **tevs, 39ef4a3565SMasami Hiramatsu int max_tevs); 404235b045SMasami Hiramatsu 41fb1587d8SMasami Hiramatsu /* Find a perf_probe_point from debuginfo */ 42ff741783SMasami Hiramatsu extern int debuginfo__find_probe_point(struct debuginfo *self, 43ff741783SMasami Hiramatsu unsigned long addr, 44fb1587d8SMasami Hiramatsu struct perf_probe_point *ppt); 45fb1587d8SMasami Hiramatsu 46cf6eb489SMasami Hiramatsu /* Find a line range */ 47ff741783SMasami Hiramatsu extern int debuginfo__find_line_range(struct debuginfo *self, 48ff741783SMasami Hiramatsu struct line_range *lr); 494ea42b18SMasami Hiramatsu 50cf6eb489SMasami Hiramatsu /* Find available variables */ 51ff741783SMasami Hiramatsu extern int debuginfo__find_available_vars_at(struct debuginfo *self, 52ff741783SMasami Hiramatsu struct perf_probe_event *pev, 53ff741783SMasami Hiramatsu struct variable_list **vls, 54ff741783SMasami Hiramatsu int max_points, bool externs); 554ea42b18SMasami Hiramatsu 564ea42b18SMasami Hiramatsu struct probe_finder { 574235b045SMasami Hiramatsu struct perf_probe_event *pev; /* Target probe event */ 58cf6eb489SMasami Hiramatsu 59cf6eb489SMasami Hiramatsu /* Callback when a probe point is found */ 60221d0611SMasami Hiramatsu int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf); 614ea42b18SMasami Hiramatsu 624ea42b18SMasami Hiramatsu /* For function searching */ 63eed05fe7SArnaldo Carvalho de Melo int lno; /* Line number */ 644ea42b18SMasami Hiramatsu Dwarf_Addr addr; /* Address */ 654235b045SMasami Hiramatsu const char *fname; /* Real file name */ 66b0ef0732SMasami Hiramatsu Dwarf_Die cu_die; /* Current CU */ 67cd25f8bcSLin Ming Dwarf_Die sp_die; 684235b045SMasami Hiramatsu struct list_head lcache; /* Line cache for lazy match */ 694ea42b18SMasami Hiramatsu 704ea42b18SMasami Hiramatsu /* For variable searching */ 717752f1b0SMasami Hiramatsu #if _ELFUTILS_PREREQ(0, 142) 72a34a9854SMasami Hiramatsu Dwarf_CFI *cfi; /* Call Frame Information */ 737752f1b0SMasami Hiramatsu #endif 74804b3606SMasami Hiramatsu Dwarf_Op *fb_ops; /* Frame base attribute */ 754235b045SMasami Hiramatsu struct perf_probe_arg *pvar; /* Current target variable */ 760e60836bSSrikar Dronamraju struct probe_trace_arg *tvar; /* Current result variable */ 774ea42b18SMasami Hiramatsu }; 78631c9defSMasami Hiramatsu 79cf6eb489SMasami Hiramatsu struct trace_event_finder { 80cf6eb489SMasami Hiramatsu struct probe_finder pf; 81576b5237SMasami Hiramatsu Dwfl_Module *mod; /* For solving symbols */ 82cf6eb489SMasami Hiramatsu struct probe_trace_event *tevs; /* Found trace events */ 83cf6eb489SMasami Hiramatsu int ntevs; /* Number of trace events */ 84cf6eb489SMasami Hiramatsu int max_tevs; /* Max number of trace events */ 85cf6eb489SMasami Hiramatsu }; 86cf6eb489SMasami Hiramatsu 87cf6eb489SMasami Hiramatsu struct available_var_finder { 88cf6eb489SMasami Hiramatsu struct probe_finder pf; 89576b5237SMasami Hiramatsu Dwfl_Module *mod; /* For solving symbols */ 90cf6eb489SMasami Hiramatsu struct variable_list *vls; /* Found variable lists */ 91cf6eb489SMasami Hiramatsu int nvls; /* Number of variable lists */ 92cf6eb489SMasami Hiramatsu int max_vls; /* Max no. of variable lists */ 93fb8c5a56SMasami Hiramatsu bool externs; /* Find external vars too */ 94fb8c5a56SMasami Hiramatsu bool child; /* Search child scopes */ 95cf6eb489SMasami Hiramatsu }; 96cf6eb489SMasami Hiramatsu 97631c9defSMasami Hiramatsu struct line_finder { 98631c9defSMasami Hiramatsu struct line_range *lr; /* Target line range */ 99631c9defSMasami Hiramatsu 100804b3606SMasami Hiramatsu const char *fname; /* File name */ 101804b3606SMasami Hiramatsu int lno_s; /* Start line number */ 102804b3606SMasami Hiramatsu int lno_e; /* End line number */ 103631c9defSMasami Hiramatsu Dwarf_Die cu_die; /* Current CU */ 104cd25f8bcSLin Ming Dwarf_Die sp_die; 105631c9defSMasami Hiramatsu int found; 106631c9defSMasami Hiramatsu }; 107631c9defSMasami Hiramatsu 10889fe808aSIngo Molnar #endif /* HAVE_DWARF_SUPPORT */ 1094ea42b18SMasami Hiramatsu 1104ea42b18SMasami Hiramatsu #endif /*_PROBE_FINDER_H */ 111