1 files changed, 57 insertions, 0 deletions

diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
new file mode 100644
index 000000000000..bdebca6697d2
--- /dev/null
+++ b/tools/perf/util/probe-finder.h
@@ -0,0 +1,57 @@
+#ifndef _PROBE_FINDER_H
+#define _PROBE_FINDER_H
+
+#define MAX_PATH_LEN 256
+#define MAX_PROBE_BUFFER 1024
+#define MAX_PROBES 128
+
+static inline int is_c_varname(const char *name)
+{
+        /* TODO */
+        return isalpha(name[0]) || name[0] == '_';
+}
+
+struct probe_point {
+        /* Inputs */
+        char    *file;          /* File name */
+        int     line;           /* Line number */
+
+        char    *function;      /* Function name */
+        int     offset;         /* Offset bytes */
+
+        int     nr_args;        /* Number of arguments */
+        char    **args;         /* Arguments */
+
+        int     retprobe;       /* Return probe */
+
+        /* Output */
+        int     found;          /* Number of found probe points */
+        char    *probes[MAX_PROBES];    /* Output buffers (will be allocated)*/
+};
+
+#ifndef NO_LIBDWARF
+extern int find_probepoint(int fd, struct probe_point *pp);
+
+#include <libdwarf/dwarf.h>
+#include <libdwarf/libdwarf.h>
+
+struct probe_finder {
+        struct probe_point      *pp;    /* Target probe point */
+
+        /* For function searching */
+        Dwarf_Addr      addr;           /* Address */
+        Dwarf_Unsigned  fno;            /* File number */
+        Dwarf_Unsigned  lno;            /* Line number */
+        Dwarf_Off       inl_offs;       /* Inline offset */
+        Dwarf_Die       cu_die;         /* Current CU */
+
+        /* For variable searching */
+        Dwarf_Addr      cu_base;        /* Current CU base address */
+        Dwarf_Locdesc   fbloc;          /* Location of Current Frame Base */
+        const char      *var;           /* Current variable name */
+        char            *buf;           /* Current output buffer */
+        int             len;            /* Length of output buffer */
+};
+#endif /* NO_LIBDWARF */
+
+#endif /*_PROBE_FINDER_H */