tapsets.h

   1 // -*- C++ -*-
   2 // Copyright (C) 2005-2010 Red Hat Inc.
   3 //
   4 // This file is part of systemtap, and is free software.  You can
   5 // redistribute it and/or modify it under the terms of the GNU General
   6 // Public License (GPL); either version 2, or (at your option) any
   7 // later version.
   8
   9 #ifndef TAPSETS_H
  10 #define TAPSETS_H
  11
  12 #include "config.h"
  13 #include "staptree.h"
  14 #include "elaborate.h"
  15
  16 void check_process_probe_kernel_support(systemtap_session& s);
  17
  18 void register_standard_tapsets(systemtap_session& sess);
  19 std::vector<derived_probe_group*> all_session_groups(systemtap_session& s);
  20 std::string common_probe_init (derived_probe* p);
  21 void common_probe_entryfn_prologue (systemtap_session& s, std::string statestr,
  22                                     std::string probe, std::string probe_type,
  23                                     bool overload_processing = true);
  24 void common_probe_entryfn_epilogue (systemtap_session& s,
  25                                     bool overload_processing);
  26
  27 void register_tapset_been(systemtap_session& sess);
  28 void register_tapset_itrace(systemtap_session& sess);
  29 void register_tapset_mark(systemtap_session& sess);
  30 void register_tapset_procfs(systemtap_session& sess);
  31 void register_tapset_timers(systemtap_session& sess);
  32 void register_tapset_netfilter(systemtap_session& sess);
  33 void register_tapset_perf(systemtap_session& sess);
  34 void register_tapset_utrace(systemtap_session& sess);
  35 void register_tapset_java(systemtap_session& sess);
  36
  37 std::string path_remove_sysroot(const systemtap_session& sess,
  38                                 const std::string& path);
  39
  40 // ------------------------------------------------------------------------
  41 // Generic derived_probe_group: contains an ordinary vector of the
  42 // given type.  It provides only the enrollment function.
  43
  44 template <class DP> struct generic_dpg: public derived_probe_group
  45 {
  46 protected:
  47   std::vector <DP*> probes;
  48 public:
  49   generic_dpg () {}
  50   void enroll (DP* probe) { probes.push_back (probe); }
  51 };
  52
  53
  54 // ------------------------------------------------------------------------
  55 // An update visitor that allows replacing assignments with a function call
  56
  57 struct var_expanding_visitor: public update_visitor
  58 {
  59   static unsigned tick;
  60   std::stack<functioncall**> target_symbol_setter_functioncalls;
  61   std::stack<defined_op*> defined_ops;
  62   std::set<std::string> valid_ops;
  63   const std::string *op;
  64
  65   var_expanding_visitor ();
  66   void visit_assignment (assignment* e);
  67   void visit_pre_crement (pre_crement* e);
  68   void visit_post_crement (post_crement* e);
  69   void visit_delete_statement (delete_statement* s);
  70   void visit_defined_op (defined_op* e);
  71
  72 private:
  73   bool rewrite_lvalue(const token *tok, const std::string& eop,
  74                       expression*& lvalue, expression*& rvalue);
  75 };
  76
  77 #endif // TAPSETS_H
  78
  79 /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */