1 //===- Debugger.h - LLVM debugger library interface -------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the LLVM research group and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the LLVM source-level debugger library interface.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_DEBUGGER_DEBUGGER_H
15 #define LLVM_DEBUGGER_DEBUGGER_H
22 class InferiorProcess;
24 /// Debugger class - This class implements the LLVM source-level debugger.
25 /// This allows clients to handle the user IO processing without having to
26 /// worry about how the debugger itself works.
29 // State the debugger needs when starting and stopping the program.
30 std::vector<std::string> ProgramArguments;
32 // The environment to run the program with. This should eventually be
33 // changed to vector of strings when we allow the user to edit the
35 const char * const *Environment;
37 // Program - The currently loaded program, or null if none is loaded.
40 // Process - The currently executing inferior process.
41 InferiorProcess *Process;
43 Debugger(const Debugger &); // DO NOT IMPLEMENT
44 void operator=(const Debugger &); // DO NOT IMPLEMENT
49 //===------------------------------------------------------------------===//
50 // Methods for manipulating and inspecting the execution environment.
53 /// initializeEnvironment - Specify the environment the program should run
54 /// with. This is used to initialize the environment of the program to the
55 /// environment of the debugger.
56 void initializeEnvironment(const char *const *envp) {
60 /// setWorkingDirectory - Specify the working directory for the program to
62 void setWorkingDirectory(const std::string &Dir) {
67 void setProgramArguments(It I, It E) {
68 ProgramArguments.assign(I, E);
70 unsigned getNumProgramArguments() const { return ProgramArguments.size(); }
71 const std::string &getProgramArgument(unsigned i) const {
72 return ProgramArguments[i];
76 //===------------------------------------------------------------------===//
77 // Methods for manipulating and inspecting the program currently loaded.
80 /// isProgramLoaded - Return true if there is a program currently loaded.
82 bool isProgramLoaded() const { return Program != 0; }
84 /// getProgram - Return the LLVM module corresponding to the program.
86 Module *getProgram() const { return Program; }
88 /// getProgramPath - Get the path of the currently loaded program, or an
89 /// empty string if none is loaded.
90 std::string getProgramPath() const;
92 /// loadProgram - If a program is currently loaded, unload it. Then search
93 /// the PATH for the specified program, loading it when found. If the
94 /// specified program cannot be found, an exception is thrown to indicate
96 void loadProgram(const std::string &Path);
98 /// unloadProgram - If a program is running, kill it, then unload all traces
99 /// of the current program. If no program is loaded, this method silently
101 void unloadProgram();
103 //===------------------------------------------------------------------===//
104 // Methods for manipulating and inspecting the program currently running.
106 // If the program is running, and the debugger is active, then we know that
107 // the program has stopped. This being the case, we can inspect the
108 // program, ask it for its source location, set breakpoints, etc.
111 /// isProgramRunning - Return true if a program is loaded and has a
112 /// currently active instance.
113 bool isProgramRunning() const { return Process != 0; }
115 /// getRunningProcess - If there is no program running, throw an exception.
116 /// Otherwise return the running process so that it can be inspected by the
118 const InferiorProcess &getRunningProcess() const {
119 if (Process == 0) throw "No process running.";
123 /// createProgram - Create an instance of the currently loaded program,
124 /// killing off any existing one. This creates the program and stops it at
125 /// the first possible moment. If there is no program loaded or if there is
126 /// a problem starting the program, this method throws an exception.
127 void createProgram();
129 /// killProgram - If the program is currently executing, kill off the
130 /// process and free up any state related to the currently running program.
131 /// If there is no program currently running, this just silently succeeds.
132 /// If something horrible happens when killing the program, an exception
137 //===------------------------------------------------------------------===//
138 // Methods for continuing execution. These methods continue the execution
139 // of the program by some amount. If the program is successfully stopped,
140 // execution returns, otherwise an exception is thrown.
142 // NOTE: These methods should always be used in preference to directly
143 // accessing the Dbg object, because these will delete the Process object if
144 // the process unexpectedly dies.
147 /// stepProgram - Implement the 'step' command, continuing execution until
148 /// the next possible stop point.
151 /// nextProgram - Implement the 'next' command, continuing execution until
152 /// the next possible stop point that is in the current function.
155 /// finishProgram - Implement the 'finish' command, continuing execution
156 /// until the specified frame ID returns.
157 void finishProgram(void *Frame);
159 /// contProgram - Implement the 'cont' command, continuing execution until
160 /// the next breakpoint is encountered.
164 class NonErrorException {
167 NonErrorException(const std::string &M) : Message(M) {}
168 const std::string &getMessage() const { return Message; }
171 } // end namespace llvm