1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
//===- CompilerDriver.h - Compiler Driver -----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Reid Spencer and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the CompilerDriver class which implements the bulk of the
// LLVM Compiler Driver program (llvmc).
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TOOLS_LLVMC_COMPILERDRIVER_H
#define LLVM_TOOLS_LLVMC_COMPILERDRIVER_H
#include <string>
#include <vector>
#include "llvm/System/Program.h"
namespace llvm {
/// This class provides the high level interface to the LLVM Compiler Driver.
/// The driver's purpose is to make it easier for compiler writers and users
/// of LLVM to utilize the compiler toolkits and LLVM toolset by learning only
/// the interface of one program (llvmc).
///
/// @see llvmc.cpp
/// @brief The interface to the LLVM Compiler Driver.
class CompilerDriver {
/// @name Types
/// @{
public:
/// @brief A vector of strings, used for argument lists
typedef std::vector<std::string> StringVector;
/// @brief A vector of sys::Path, used for path lists
typedef std::vector<sys::Path> PathVector;
/// @brief A table of strings, indexed typically by Phases
typedef std::vector<StringVector> StringTable;
/// @brief The phases of processing that llvmc understands
enum Phases {
PREPROCESSING, ///< Source language combining, filtering, substitution
TRANSLATION, ///< Translate source -> LLVM bitcode/assembly
OPTIMIZATION, ///< Optimize translation result
ASSEMBLY, ///< Convert program to executable
LINKING, ///< Link bitcode and native code
NUM_PHASES ///< Always last!
};
/// @brief The levels of optimization llvmc understands
enum OptimizationLevels {
OPT_FAST_COMPILE, ///< Optimize to make >compile< go faster
OPT_SIMPLE, ///< Standard/simple optimizations
OPT_AGGRESSIVE, ///< Aggressive optimizations
OPT_LINK_TIME, ///< Aggressive + LinkTime optimizations
OPT_AGGRESSIVE_LINK_TIME, ///< Make it go way fast!
OPT_NONE ///< No optimizations. Keep this at the end!
};
/// @brief Action specific flags
enum ConfigurationFlags {
REQUIRED_FLAG = 0x0001, ///< Should the action always be run?
PREPROCESSES_FLAG = 0x0002, ///< Does this action preprocess?
TRANSLATES_FLAG = 0x0004, ///< Does this action translate?
OUTPUT_IS_ASM_FLAG = 0x0008, ///< Action produces .ll files?
FLAGS_MASK = 0x000F ///< Union of all flags
};
/// This type is the input list to the CompilerDriver. It provides
/// a vector of pathname/filetype pairs. The filetype is used to look up
/// the configuration of the actions to be taken by the driver.
/// @brief The Input Data to the execute method
typedef std::vector<std::pair<sys::Path,std::string> > InputList;
/// This type is read from configuration files or otherwise provided to
/// the CompilerDriver through a "ConfigDataProvider". It serves as both
/// the template of what to do and the actual Action to be executed.
/// @brief A structure to hold the action data for a given source
/// language.
struct Action {
Action() : flags(0) {}
sys::Path program; ///< The program to execve
StringVector args; ///< Arguments to the program
unsigned flags; ///< Action specific flags
void set(unsigned fl ) { flags |= fl; }
void clear(unsigned fl) { flags &= (FLAGS_MASK ^ fl); }
bool isSet(unsigned fl) { return (flags&fl) != 0; }
};
struct ConfigData {
ConfigData();
std::string version; ///< The version number.
std::string langName; ///< The name of the source language
StringTable opts; ///< The o10n options for each level
StringVector libpaths; ///< The library paths
Action PreProcessor; ///< PreProcessor command line
Action Translator; ///< Translator command line
Action Optimizer; ///< Optimizer command line
Action Assembler; ///< Assembler command line
Action Linker; ///< Linker command line
};
/// This pure virtual interface class defines the interface between the
/// CompilerDriver and other software that provides ConfigData objects to
/// it. The CompilerDriver must be configured to use an object of this
/// type so it can obtain the configuration data.
/// @see setConfigDataProvider
/// @brief Configuration Data Provider interface
class ConfigDataProvider {
public:
virtual ~ConfigDataProvider();
virtual ConfigData* ProvideConfigData(const std::string& filetype) = 0;
virtual void setConfigDir(const sys::Path& dirName) = 0;
};
/// These flags control various actions of the compiler driver. They are
/// used by adding the needed flag values together and passing them to the
/// compiler driver's setDriverFlags method.
/// @see setDriverFlags
/// @brief Driver specific flags
enum DriverFlags {
DRY_RUN_FLAG = 0x0001, ///< Do everything but execute actions
VERBOSE_FLAG = 0x0002, ///< Print each action
DEBUG_FLAG = 0x0004, ///< Print debug information
TIME_PASSES_FLAG = 0x0008, ///< Time the passes as they execute
TIME_ACTIONS_FLAG = 0x0010, ///< Time the actions as they execute
SHOW_STATS_FLAG = 0x0020, ///< Show pass statistics
EMIT_NATIVE_FLAG = 0x0040, ///< Emit native code instead of bc
EMIT_RAW_FLAG = 0x0080, ///< Emit raw, unoptimized bitcode
KEEP_TEMPS_FLAG = 0x0100, ///< Don't delete temporary files
STRIP_OUTPUT_FLAG = 0x0200, ///< Strip symbols from linked output
DRIVER_FLAGS_MASK = 0x03FF ///< Union of the above flags
};
/// @}
/// @name Constructors
/// @{
public:
/// @brief Static Constructor
static CompilerDriver* Get(ConfigDataProvider& CDP);
/// @brief Virtual destructor
virtual ~CompilerDriver();
/// @}
/// @name Methods
/// @{
public:
/// @brief Execute the actions requested for the given input list.
virtual int execute(
const InputList& list, const sys::Path& output, std::string& ErrMsg) =0;
/// @brief Set the final phase at which compilation terminates
virtual void setFinalPhase(Phases phase) = 0;
/// @brief Set the optimization level for the compilation
virtual void setOptimization(OptimizationLevels level) = 0;
/// @brief Set the driver flags.
virtual void setDriverFlags(unsigned flags) = 0;
/// @brief Set the output machine name.
virtual void setOutputMachine(const std::string& machineName) = 0;
/// @brief Set the options for a given phase.
virtual void setPhaseArgs(Phases phase, const StringVector& opts) = 0;
/// @brief Set Library Paths
virtual void setIncludePaths(const StringVector& paths) = 0;
/// @brief Set Library Paths
virtual void setSymbolDefines(const StringVector& paths) = 0;
/// @brief Set Library Paths
virtual void setLibraryPaths(const StringVector& paths) = 0;
/// @brief Add a path to the list of library paths
virtual void addLibraryPath( const sys::Path& libPath ) = 0;
/// @brief Add a path to the list of paths in which to find tools
virtual void addToolPath( const sys::Path& toolPath) = 0;
/// @brief Set the list of -f options to be passed through
virtual void setfPassThrough(const StringVector& fOpts) = 0;
/// @brief Set the list of -M options to be passed through
virtual void setMPassThrough(const StringVector& fOpts) = 0;
/// @brief Set the list of -W options to be passed through
virtual void setWPassThrough(const StringVector& fOpts) = 0;
/// @brief Determine where a linkage file is located in the file system
virtual sys::Path GetPathForLinkageItem(
const std::string& link_item, ///< Item to be sought
bool native = false ///< Looking for native?
) = 0;
/// @}
};
}
// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
#endif
|
