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                                     bool schedule_work_safe);
  27
  28 void register_tapset_been(systemtap_session& sess);
  29 void register_tapset_itrace(systemtap_session& sess);
  30 void register_tapset_mark(systemtap_session& sess);
  31 void register_tapset_procfs(systemtap_session& sess);
  32 void register_tapset_timers(systemtap_session& sess);
  33 void register_tapset_netfilter(systemtap_session& sess);
  34 void register_tapset_perf(systemtap_session& sess);
  35 void register_tapset_utrace(systemtap_session& sess);
  36 void register_tapset_java(systemtap_session& sess);
  37
  38 std::string path_remove_sysroot(const systemtap_session& sess,
  39                                 const std::string& path);
  40
  41 // ------------------------------------------------------------------------
  42 // Generic derived_probe_group: contains an ordinary vector of the
  43 // given type.  It provides only the enrollment function.
  44
  45 template <class DP> struct generic_dpg: public derived_probe_group
  46 {
  47 protected:
  48   std::vector <DP*> probes;
  49 public:
  50   generic_dpg () {}
  51   void enroll (DP* probe) { probes.push_back (probe); }
  52 };
  53
  54
  55 // ------------------------------------------------------------------------
  56 // An update visitor that allows replacing assignments with a function call
  57
  58 struct var_expanding_visitor: public update_visitor
  59 {
  60   static unsigned tick;
  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   void provide_lvalue_call(functioncall* fcall);
  73
  74 private:
  75   std::stack<functioncall**> target_symbol_setter_functioncalls;
  76   bool rewrite_lvalue(const token *tok, const std::string& eop,
  77                       expression*& lvalue, expression*& rvalue);
  78 };
  79
  80 #endif // TAPSETS_H
  81
  82 /* vim: set sw=2 ts=8 cino=>4,n-2,{2,^-2,t0,(0,u0,w1,M1 : */