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 13f8bffbf1SMasami Hiramatsu #define PROBE_ARG_VARS "$vars" 14f8bffbf1SMasami Hiramatsu #define PROBE_ARG_PARAMS "$params" 15f8bffbf1SMasami Hiramatsu 164ea42b18SMasami Hiramatsu static inline int is_c_varname(const char *name) 174ea42b18SMasami Hiramatsu { 184ea42b18SMasami Hiramatsu /* TODO */ 194ea42b18SMasami Hiramatsu return isalpha(name[0]) || name[0] == '_'; 204ea42b18SMasami Hiramatsu } 214ea42b18SMasami Hiramatsu 2289fe808aSIngo Molnar #ifdef HAVE_DWARF_SUPPORT 23ff741783SMasami Hiramatsu 24ff741783SMasami Hiramatsu #include "dwarf-aux.h" 25ff741783SMasami Hiramatsu 26ff741783SMasami Hiramatsu /* TODO: export debuginfo data structure even if no dwarf support */ 27ff741783SMasami Hiramatsu 28ff741783SMasami Hiramatsu /* debug information structure */ 29ff741783SMasami Hiramatsu struct debuginfo { 30ff741783SMasami Hiramatsu Dwarf *dbg; 31576b5237SMasami Hiramatsu Dwfl_Module *mod; 32ff741783SMasami Hiramatsu Dwfl *dwfl; 33ff741783SMasami Hiramatsu Dwarf_Addr bias; 34ff741783SMasami Hiramatsu }; 35ff741783SMasami Hiramatsu 36a15ad2f5SMasami Hiramatsu /* This also tries to open distro debuginfo */ 373938bad4SArnaldo Carvalho de Melo struct debuginfo *debuginfo__new(const char *path); 383938bad4SArnaldo Carvalho de Melo void debuginfo__delete(struct debuginfo *dbg); 39ff741783SMasami Hiramatsu 400e60836bSSrikar Dronamraju /* Find probe_trace_events specified by perf_probe_event from debuginfo */ 413938bad4SArnaldo Carvalho de Melo int debuginfo__find_trace_events(struct debuginfo *dbg, 42ff741783SMasami Hiramatsu struct perf_probe_event *pev, 43ddb2f58fSMasami Hiramatsu struct probe_trace_event **tevs); 444235b045SMasami Hiramatsu 45fb1587d8SMasami Hiramatsu /* Find a perf_probe_point from debuginfo */ 463938bad4SArnaldo Carvalho de Melo int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr, 47fb1587d8SMasami Hiramatsu struct perf_probe_point *ppt); 48fb1587d8SMasami Hiramatsu 49cf6eb489SMasami Hiramatsu /* Find a line range */ 503938bad4SArnaldo Carvalho de Melo int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr); 514ea42b18SMasami Hiramatsu 52cf6eb489SMasami Hiramatsu /* Find available variables */ 533938bad4SArnaldo Carvalho de Melo int debuginfo__find_available_vars_at(struct debuginfo *dbg, 54ff741783SMasami Hiramatsu struct perf_probe_event *pev, 55ddb2f58fSMasami Hiramatsu struct variable_list **vls); 564ea42b18SMasami Hiramatsu 5709ed8975SNaohiro Aota /* Find a src file from a DWARF tag path */ 5809ed8975SNaohiro Aota int get_real_path(const char *raw_path, const char *comp_dir, 5909ed8975SNaohiro Aota char **new_path); 6009ed8975SNaohiro Aota 614ea42b18SMasami Hiramatsu struct probe_finder { 624235b045SMasami Hiramatsu struct perf_probe_event *pev; /* Target probe event */ 63cf6eb489SMasami Hiramatsu 64cf6eb489SMasami Hiramatsu /* Callback when a probe point is found */ 65221d0611SMasami Hiramatsu int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf); 664ea42b18SMasami Hiramatsu 674ea42b18SMasami Hiramatsu /* For function searching */ 68eed05fe7SArnaldo Carvalho de Melo int lno; /* Line number */ 694ea42b18SMasami Hiramatsu Dwarf_Addr addr; /* Address */ 704235b045SMasami Hiramatsu const char *fname; /* Real file name */ 71b0ef0732SMasami Hiramatsu Dwarf_Die cu_die; /* Current CU */ 72cd25f8bcSLin Ming Dwarf_Die sp_die; 735a62257aSMasami Hiramatsu struct intlist *lcache; /* Line cache for lazy match */ 744ea42b18SMasami Hiramatsu 754ea42b18SMasami Hiramatsu /* For variable searching */ 767752f1b0SMasami Hiramatsu #if _ELFUTILS_PREREQ(0, 142) 77270bde1eSHemant Kumar /* Call Frame Information from .eh_frame */ 78270bde1eSHemant Kumar Dwarf_CFI *cfi_eh; 79270bde1eSHemant Kumar /* Call Frame Information from .debug_frame */ 80270bde1eSHemant Kumar Dwarf_CFI *cfi_dbg; 817752f1b0SMasami Hiramatsu #endif 82804b3606SMasami Hiramatsu Dwarf_Op *fb_ops; /* Frame base attribute */ 834235b045SMasami Hiramatsu struct perf_probe_arg *pvar; /* Current target variable */ 840e60836bSSrikar Dronamraju struct probe_trace_arg *tvar; /* Current result variable */ 854ea42b18SMasami Hiramatsu }; 86631c9defSMasami Hiramatsu 87cf6eb489SMasami Hiramatsu struct trace_event_finder { 88cf6eb489SMasami Hiramatsu struct probe_finder pf; 89576b5237SMasami Hiramatsu Dwfl_Module *mod; /* For solving symbols */ 90cf6eb489SMasami Hiramatsu struct probe_trace_event *tevs; /* Found trace events */ 91cf6eb489SMasami Hiramatsu int ntevs; /* Number of trace events */ 92cf6eb489SMasami Hiramatsu int max_tevs; /* Max number of trace events */ 93cf6eb489SMasami Hiramatsu }; 94cf6eb489SMasami Hiramatsu 95cf6eb489SMasami Hiramatsu struct available_var_finder { 96cf6eb489SMasami Hiramatsu struct probe_finder pf; 97576b5237SMasami Hiramatsu Dwfl_Module *mod; /* For solving symbols */ 98cf6eb489SMasami Hiramatsu struct variable_list *vls; /* Found variable lists */ 99cf6eb489SMasami Hiramatsu int nvls; /* Number of variable lists */ 100cf6eb489SMasami Hiramatsu int max_vls; /* Max no. of variable lists */ 101fb8c5a56SMasami Hiramatsu bool child; /* Search child scopes */ 102cf6eb489SMasami Hiramatsu }; 103cf6eb489SMasami Hiramatsu 104631c9defSMasami Hiramatsu struct line_finder { 105631c9defSMasami Hiramatsu struct line_range *lr; /* Target line range */ 106631c9defSMasami Hiramatsu 107804b3606SMasami Hiramatsu const char *fname; /* File name */ 108804b3606SMasami Hiramatsu int lno_s; /* Start line number */ 109804b3606SMasami Hiramatsu int lno_e; /* End line number */ 110631c9defSMasami Hiramatsu Dwarf_Die cu_die; /* Current CU */ 111cd25f8bcSLin Ming Dwarf_Die sp_die; 112631c9defSMasami Hiramatsu int found; 113631c9defSMasami Hiramatsu }; 114631c9defSMasami Hiramatsu 11589fe808aSIngo Molnar #endif /* HAVE_DWARF_SUPPORT */ 1164ea42b18SMasami Hiramatsu 1174ea42b18SMasami Hiramatsu #endif /*_PROBE_FINDER_H */ 118