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" 65a62257aSMasami Hiramatsu #include "intlist.h" 74235b045SMasami Hiramatsu #include "probe-event.h" 84a58e611SArnaldo Carvalho de Melo 94ea42b18SMasami Hiramatsu #define MAX_PROBE_BUFFER 1024 104ea42b18SMasami Hiramatsu #define MAX_PROBES 128 117969ec77SMasami Hiramatsu #define MAX_PROBE_ARGS 128 124ea42b18SMasami Hiramatsu 134ea42b18SMasami Hiramatsu static inline int is_c_varname(const char *name) 144ea42b18SMasami Hiramatsu { 154ea42b18SMasami Hiramatsu /* TODO */ 164ea42b18SMasami Hiramatsu return isalpha(name[0]) || name[0] == '_'; 174ea42b18SMasami Hiramatsu } 184ea42b18SMasami Hiramatsu 1989fe808aSIngo Molnar #ifdef HAVE_DWARF_SUPPORT 20ff741783SMasami Hiramatsu 21ff741783SMasami Hiramatsu #include "dwarf-aux.h" 22ff741783SMasami Hiramatsu 23ff741783SMasami Hiramatsu /* TODO: export debuginfo data structure even if no dwarf support */ 24ff741783SMasami Hiramatsu 25ff741783SMasami Hiramatsu /* debug information structure */ 26ff741783SMasami Hiramatsu struct debuginfo { 27ff741783SMasami Hiramatsu Dwarf *dbg; 28576b5237SMasami Hiramatsu Dwfl_Module *mod; 29ff741783SMasami Hiramatsu Dwfl *dwfl; 30ff741783SMasami Hiramatsu Dwarf_Addr bias; 31ff741783SMasami Hiramatsu }; 32ff741783SMasami Hiramatsu 33a15ad2f5SMasami Hiramatsu /* This also tries to open distro debuginfo */ 34ff741783SMasami Hiramatsu extern struct debuginfo *debuginfo__new(const char *path); 35316c7136SArnaldo Carvalho de Melo extern void debuginfo__delete(struct debuginfo *dbg); 36ff741783SMasami Hiramatsu 370e60836bSSrikar Dronamraju /* Find probe_trace_events specified by perf_probe_event from debuginfo */ 38316c7136SArnaldo Carvalho de Melo extern int debuginfo__find_trace_events(struct debuginfo *dbg, 39ff741783SMasami Hiramatsu struct perf_probe_event *pev, 400e60836bSSrikar Dronamraju struct probe_trace_event **tevs, 41ef4a3565SMasami Hiramatsu int max_tevs); 424235b045SMasami Hiramatsu 43fb1587d8SMasami Hiramatsu /* Find a perf_probe_point from debuginfo */ 44316c7136SArnaldo Carvalho de Melo extern int debuginfo__find_probe_point(struct debuginfo *dbg, 45ff741783SMasami Hiramatsu unsigned long addr, 46fb1587d8SMasami Hiramatsu struct perf_probe_point *ppt); 47fb1587d8SMasami Hiramatsu 48cf6eb489SMasami Hiramatsu /* Find a line range */ 49316c7136SArnaldo Carvalho de Melo extern int debuginfo__find_line_range(struct debuginfo *dbg, 50ff741783SMasami Hiramatsu struct line_range *lr); 514ea42b18SMasami Hiramatsu 52cf6eb489SMasami Hiramatsu /* Find available variables */ 53316c7136SArnaldo Carvalho de Melo extern int debuginfo__find_available_vars_at(struct debuginfo *dbg, 54ff741783SMasami Hiramatsu struct perf_probe_event *pev, 55ff741783SMasami Hiramatsu struct variable_list **vls, 56ff741783SMasami Hiramatsu int max_points, bool externs); 574ea42b18SMasami Hiramatsu 5809ed8975SNaohiro Aota /* Find a src file from a DWARF tag path */ 5909ed8975SNaohiro Aota int get_real_path(const char *raw_path, const char *comp_dir, 6009ed8975SNaohiro Aota char **new_path); 6109ed8975SNaohiro Aota 624ea42b18SMasami Hiramatsu struct probe_finder { 634235b045SMasami Hiramatsu struct perf_probe_event *pev; /* Target probe event */ 64cf6eb489SMasami Hiramatsu 65cf6eb489SMasami Hiramatsu /* Callback when a probe point is found */ 66221d0611SMasami Hiramatsu int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf); 674ea42b18SMasami Hiramatsu 684ea42b18SMasami Hiramatsu /* For function searching */ 69eed05fe7SArnaldo Carvalho de Melo int lno; /* Line number */ 704ea42b18SMasami Hiramatsu Dwarf_Addr addr; /* Address */ 714235b045SMasami Hiramatsu const char *fname; /* Real file name */ 72b0ef0732SMasami Hiramatsu Dwarf_Die cu_die; /* Current CU */ 73cd25f8bcSLin Ming Dwarf_Die sp_die; 745a62257aSMasami Hiramatsu struct intlist *lcache; /* Line cache for lazy match */ 754ea42b18SMasami Hiramatsu 764ea42b18SMasami Hiramatsu /* For variable searching */ 777752f1b0SMasami Hiramatsu #if _ELFUTILS_PREREQ(0, 142) 78a34a9854SMasami Hiramatsu Dwarf_CFI *cfi; /* Call Frame Information */ 797752f1b0SMasami Hiramatsu #endif 80804b3606SMasami Hiramatsu Dwarf_Op *fb_ops; /* Frame base attribute */ 814235b045SMasami Hiramatsu struct perf_probe_arg *pvar; /* Current target variable */ 820e60836bSSrikar Dronamraju struct probe_trace_arg *tvar; /* Current result variable */ 834ea42b18SMasami Hiramatsu }; 84631c9defSMasami Hiramatsu 85cf6eb489SMasami Hiramatsu struct trace_event_finder { 86cf6eb489SMasami Hiramatsu struct probe_finder pf; 87576b5237SMasami Hiramatsu Dwfl_Module *mod; /* For solving symbols */ 88cf6eb489SMasami Hiramatsu struct probe_trace_event *tevs; /* Found trace events */ 89cf6eb489SMasami Hiramatsu int ntevs; /* Number of trace events */ 90cf6eb489SMasami Hiramatsu int max_tevs; /* Max number of trace events */ 91cf6eb489SMasami Hiramatsu }; 92cf6eb489SMasami Hiramatsu 93cf6eb489SMasami Hiramatsu struct available_var_finder { 94cf6eb489SMasami Hiramatsu struct probe_finder pf; 95576b5237SMasami Hiramatsu Dwfl_Module *mod; /* For solving symbols */ 96cf6eb489SMasami Hiramatsu struct variable_list *vls; /* Found variable lists */ 97cf6eb489SMasami Hiramatsu int nvls; /* Number of variable lists */ 98cf6eb489SMasami Hiramatsu int max_vls; /* Max no. of variable lists */ 99fb8c5a56SMasami Hiramatsu bool externs; /* Find external vars too */ 100fb8c5a56SMasami Hiramatsu bool child; /* Search child scopes */ 101cf6eb489SMasami Hiramatsu }; 102cf6eb489SMasami Hiramatsu 103631c9defSMasami Hiramatsu struct line_finder { 104631c9defSMasami Hiramatsu struct line_range *lr; /* Target line range */ 105631c9defSMasami Hiramatsu 106804b3606SMasami Hiramatsu const char *fname; /* File name */ 107804b3606SMasami Hiramatsu int lno_s; /* Start line number */ 108804b3606SMasami Hiramatsu int lno_e; /* End line number */ 109631c9defSMasami Hiramatsu Dwarf_Die cu_die; /* Current CU */ 110cd25f8bcSLin Ming Dwarf_Die sp_die; 111631c9defSMasami Hiramatsu int found; 112631c9defSMasami Hiramatsu }; 113631c9defSMasami Hiramatsu 11489fe808aSIngo Molnar #endif /* HAVE_DWARF_SUPPORT */ 1154ea42b18SMasami Hiramatsu 1164ea42b18SMasami Hiramatsu #endif /*_PROBE_FINDER_H */ 117