1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef _PROBE_FINDER_H
  3#define _PROBE_FINDER_H
  4
  5#include <stdbool.h>
  6#include "intlist.h"
  7#include "probe-event.h"
  8#include "sane_ctype.h"
  9
 10#define MAX_PROBE_BUFFER	1024
 11#define MAX_PROBES		 128
 12#define MAX_PROBE_ARGS		 128
 13
 14#define PROBE_ARG_VARS		"$vars"
 15#define PROBE_ARG_PARAMS	"$params"
 16
 17static inline int is_c_varname(const char *name)
 18{
 19	/* TODO */
 20	return isalpha(name[0]) || name[0] == '_';
 21}
 22
 23#ifdef HAVE_DWARF_SUPPORT
 24
 25#include "dwarf-aux.h"
 26
 27/* TODO: export debuginfo data structure even if no dwarf support */
 28
 29/* debug information structure */
 30struct debuginfo {
 31	Dwarf		*dbg;
 32	Dwfl_Module	*mod;
 33	Dwfl		*dwfl;
 34	Dwarf_Addr	bias;
 35};
 36
 37/* This also tries to open distro debuginfo */
 38struct debuginfo *debuginfo__new(const char *path);
 39void debuginfo__delete(struct debuginfo *dbg);
 40
 41/* Find probe_trace_events specified by perf_probe_event from debuginfo */
 42int debuginfo__find_trace_events(struct debuginfo *dbg,
 43				 struct perf_probe_event *pev,
 44				 struct probe_trace_event **tevs);
 45
 46/* Find a perf_probe_point from debuginfo */
 47int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
 48				struct perf_probe_point *ppt);
 49
 50int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs,
 51			       bool adjust_offset);
 52
 53/* Find a line range */
 54int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr);
 55
 56/* Find available variables */
 57int debuginfo__find_available_vars_at(struct debuginfo *dbg,
 58				      struct perf_probe_event *pev,
 59				      struct variable_list **vls);
 60
 61/* Find a src file from a DWARF tag path */
 62int get_real_path(const char *raw_path, const char *comp_dir,
 63			 char **new_path);
 64
 65struct probe_finder {
 66	struct perf_probe_event	*pev;		/* Target probe event */
 67
 68	/* Callback when a probe point is found */
 69	int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf);
 70
 71	/* For function searching */
 72	int			lno;		/* Line number */
 73	Dwarf_Addr		addr;		/* Address */
 74	const char		*fname;		/* Real file name */
 75	Dwarf_Die		cu_die;		/* Current CU */
 76	Dwarf_Die		sp_die;
 77	struct intlist		*lcache;	/* Line cache for lazy match */
 78
 79	/* For variable searching */
 80#if _ELFUTILS_PREREQ(0, 142)
 81	/* Call Frame Information from .eh_frame */
 82	Dwarf_CFI		*cfi_eh;
 83	/* Call Frame Information from .debug_frame */
 84	Dwarf_CFI		*cfi_dbg;
 85#endif
 86	Dwarf_Op		*fb_ops;	/* Frame base attribute */
 87	unsigned int		machine;	/* Target machine arch */
 88	struct perf_probe_arg	*pvar;		/* Current target variable */
 89	struct probe_trace_arg	*tvar;		/* Current result variable */
 90};
 91
 92struct trace_event_finder {
 93	struct probe_finder	pf;
 94	Dwfl_Module		*mod;		/* For solving symbols */
 95	struct probe_trace_event *tevs;		/* Found trace events */
 96	int			ntevs;		/* Number of trace events */
 97	int			max_tevs;	/* Max number of trace events */
 98};
 99
100struct available_var_finder {
101	struct probe_finder	pf;
102	Dwfl_Module		*mod;		/* For solving symbols */
103	struct variable_list	*vls;		/* Found variable lists */
104	int			nvls;		/* Number of variable lists */
105	int			max_vls;	/* Max no. of variable lists */
106	bool			child;		/* Search child scopes */
107};
108
109struct line_finder {
110	struct line_range	*lr;		/* Target line range */
111
112	const char		*fname;		/* File name */
113	int			lno_s;		/* Start line number */
114	int			lno_e;		/* End line number */
115	Dwarf_Die		cu_die;		/* Current CU */
116	Dwarf_Die		sp_die;
117	int			found;
118};
119
120#endif /* HAVE_DWARF_SUPPORT */
121
122#endif /*_PROBE_FINDER_H */

  1/* SPDX-License-Identifier: GPL-2.0 */
  2#ifndef _PROBE_FINDER_H
  3#define _PROBE_FINDER_H
  4
  5#include <stdbool.h>
  6#include "intlist.h"
  7#include "probe-event.h"
  8#include <linux/ctype.h>
  9
 10#define MAX_PROBE_BUFFER	1024
 11#define MAX_PROBES		 128
 12#define MAX_PROBE_ARGS		 128
 13
 14#define PROBE_ARG_VARS		"$vars"
 15#define PROBE_ARG_PARAMS	"$params"
 16
 17static inline int is_c_varname(const char *name)
 18{
 19	/* TODO */
 20	return isalpha(name[0]) || name[0] == '_';
 21}
 22
 23#ifdef HAVE_DWARF_SUPPORT
 24
 25#include "dwarf-aux.h"
 26
 27/* TODO: export debuginfo data structure even if no dwarf support */
 28
 29/* debug information structure */
 30struct debuginfo {
 31	Dwarf		*dbg;
 32	Dwfl_Module	*mod;
 33	Dwfl		*dwfl;
 34	Dwarf_Addr	bias;
 35};
 36
 37/* This also tries to open distro debuginfo */
 38struct debuginfo *debuginfo__new(const char *path);
 39void debuginfo__delete(struct debuginfo *dbg);
 40
 41/* Find probe_trace_events specified by perf_probe_event from debuginfo */
 42int debuginfo__find_trace_events(struct debuginfo *dbg,
 43				 struct perf_probe_event *pev,
 44				 struct probe_trace_event **tevs);
 45
 46/* Find a perf_probe_point from debuginfo */
 47int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
 48				struct perf_probe_point *ppt);
 49
 50int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs,
 51			       bool adjust_offset);
 52
 53/* Find a line range */
 54int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr);
 55
 56/* Find available variables */
 57int debuginfo__find_available_vars_at(struct debuginfo *dbg,
 58				      struct perf_probe_event *pev,
 59				      struct variable_list **vls);
 60
 61/* Find a src file from a DWARF tag path */
 62int get_real_path(const char *raw_path, const char *comp_dir,
 63			 char **new_path);
 64
 65struct probe_finder {
 66	struct perf_probe_event	*pev;		/* Target probe event */
 67
 68	/* Callback when a probe point is found */
 69	int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf);
 70
 71	/* For function searching */
 72	int			lno;		/* Line number */
 73	Dwarf_Addr		addr;		/* Address */
 74	const char		*fname;		/* Real file name */
 75	Dwarf_Die		cu_die;		/* Current CU */
 76	Dwarf_Die		sp_die;
 77	struct intlist		*lcache;	/* Line cache for lazy match */
 78
 79	/* For variable searching */
 80#if _ELFUTILS_PREREQ(0, 142)
 81	/* Call Frame Information from .eh_frame */
 82	Dwarf_CFI		*cfi_eh;
 83	/* Call Frame Information from .debug_frame */
 84	Dwarf_CFI		*cfi_dbg;
 85#endif
 86	Dwarf_Op		*fb_ops;	/* Frame base attribute */
 87	unsigned int		machine;	/* Target machine arch */
 88	struct perf_probe_arg	*pvar;		/* Current target variable */
 89	struct probe_trace_arg	*tvar;		/* Current result variable */
 90};
 91
 92struct trace_event_finder {
 93	struct probe_finder	pf;
 94	Dwfl_Module		*mod;		/* For solving symbols */
 95	struct probe_trace_event *tevs;		/* Found trace events */
 96	int			ntevs;		/* Number of trace events */
 97	int			max_tevs;	/* Max number of trace events */
 98};
 99
100struct available_var_finder {
101	struct probe_finder	pf;
102	Dwfl_Module		*mod;		/* For solving symbols */
103	struct variable_list	*vls;		/* Found variable lists */
104	int			nvls;		/* Number of variable lists */
105	int			max_vls;	/* Max no. of variable lists */
106	bool			child;		/* Search child scopes */
107};
108
109struct line_finder {
110	struct line_range	*lr;		/* Target line range */
111
112	const char		*fname;		/* File name */
113	int			lno_s;		/* Start line number */
114	int			lno_e;		/* End line number */
115	Dwarf_Die		cu_die;		/* Current CU */
116	Dwarf_Die		sp_die;
117	int			found;
118};
119
120#endif /* HAVE_DWARF_SUPPORT */
121
122#endif /*_PROBE_FINDER_H */