source: driver/cfa.cc@ 51b73452

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors ctor deferred_resn demangler enum forall-pointer-decay gc_noraii jacob/cs343-translation jenkins-sandbox memory new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new string stuck-waitfor-destruct with_gc
Last change on this file since 51b73452 was 51b73452, checked in by Peter A. Buhr <pabuhr@…>, 11 years ago

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1// -*- Mode: C++ -*-
2//
3// CForall Version 1.0, Copyright (C) Peter A. Buhr 2002
4//
5// cfa.cc --
6//
7// Author : Peter A. Buhr
8// Created On : Tue Aug 20 13:44:49 2002
9// Last Modified By : Peter A. Buhr
10// Last Modified On : Fri Oct 17 18:03:15 2014
11// Update Count : 95
12//
13
14#include <iostream>
15#include <cstdio> // perror
16#include <cstdlib> // putenv, exit
17#include <unistd.h> // execvp
18#include <string> // STL version
19
20#include "config.h" // configure info
21
22using std::cerr;
23using std::endl;
24using std::string;
25
26
27//#define __DEBUG_H__
28
29
30bool prefix( string arg, string pre ) {
31 return arg.substr( 0, pre.size() ) == pre;
32} // prefix
33
34
35void shuffle( const char *args[], int S, int E, int N ) {
36 // S & E index 1 passed the end so adjust with -1
37#ifdef __DEBUG_H__
38 cerr << "shuffle:" << S << " " << E << " " << N << endl;
39#endif // __DEBUG_H__
40 for ( int j = E-1 + N; j > S-1 + N; j -=1 ) {
41#ifdef __DEBUG_H__
42 cerr << "\t" << j << " " << j-N << endl;
43#endif // __DEBUG_H__
44 args[j] = args[j-N];
45 } // for
46} // shuffle
47
48
49int main( int argc, char *argv[] ) {
50 string Version( VERSION ); // current version number from CONFIG
51 string Major( "0" ), Minor( "0" ), Patch( "0" ); // default version numbers
52 int posn1 = Version.find( "." ); // find the divider between major and minor version numbers
53 if ( posn1 == -1 ) { // not there ?
54 Major = Version;
55 } else {
56 Major = Version.substr( 0, posn1 );
57 int posn2 = Version.find( ".", posn1 + 1 ); // find the divider between minor and patch numbers
58 if ( posn2 == -1 ) { // not there ?
59 Minor = Version.substr( posn1 );
60 } else {
61 Minor = Version.substr( posn1 + 1, posn2 - posn1 - 1 );
62 Patch = Version.substr( posn2 + 1 );
63 } // if
64 } // if
65
66 string installlibdir( CFA_LIBDIR ); // fixed location of the cpp and cfa-cpp commands
67
68 string heading; // banner printed at start of cfa compilation
69 string arg; // current command-line argument during command-line parsing
70 string Bprefix; // path where gcc looks for compiler command steps
71 string langstd; // language standard
72
73 string compiler_path( GCC_PATH ); // path/name of C compiler
74 string compiler_name; // name of C compiler
75
76 bool nonoptarg = false; // indicates non-option argument specified
77 bool link = true; // linking as well as compiling
78 bool verbose = false; // -v flag
79 bool quiet = false; // -quiet flag
80 bool debug = true; // -debug flag
81 bool help = false; // -help flag
82 bool CFA_flag = false; // -CFA flag
83 bool cpp_flag = false; // -E or -M flag, preprocessor only
84 bool debugging = false; // -g flag
85
86 const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
87 int sargs = 1; // starting location for arguments in args list
88 int nargs = sargs; // number of arguments in args list; 0 => command name
89
90 const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
91 int nlibs = 0;
92
93#ifdef __DEBUG_H__
94 cerr << "CFA:" << endl;
95#endif // __DEBUG_H__
96
97 // process command-line arguments
98
99 for ( int i = 1; i < argc; i += 1 ) {
100#ifdef __DEBUG_H__
101 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
102#endif // __DEBUG_H__
103 arg = argv[i]; // convert to string value
104#ifdef __DEBUG_H__
105 cerr << "arg:\"" << arg << "\"" << endl;
106#endif // __DEBUG_H__
107 if ( prefix( arg, "-" ) ) {
108 // pass through arguments
109
110 if ( arg == "-Xlinker" || arg == "-o" ) {
111 args[nargs] = argv[i]; // pass the argument along
112 nargs += 1;
113 i += 1;
114 if ( i == argc ) continue; // next argument available ?
115 args[nargs] = argv[i]; // pass the argument along
116 nargs += 1;
117 } else if ( arg == "-XCFA" ) { // CFA pass through
118 i += 1;
119 args[nargs] = ( *new string( string("-D__CFA_FLAG__=") + argv[i] ) ).c_str();
120 nargs += 1;
121
122 // CFA specific arguments
123
124 } else if ( arg == "-CFA" ) {
125 CFA_flag = true; // strip the -CFA flag
126 link = false;
127 args[nargs] = "-E"; // replace the argument with -E
128 nargs += 1;
129 } else if ( arg == "-debug" ) {
130 debug = true; // strip the debug flag
131 } else if ( arg == "-nodebug" ) {
132 debug = false; // strip the nodebug flag
133 } else if ( arg == "-quiet" ) {
134 quiet = true; // strip the quiet flag
135 } else if ( arg == "-noquiet" ) {
136 quiet = false; // strip the noquiet flag
137 } else if ( arg == "-help" ) {
138 help = true; // strip the help flag
139 } else if ( arg == "-nohelp" ) {
140 help = false; // strip the nohelp flag
141
142 // C++ specific arguments
143
144 } else if ( arg == "-v" ) {
145 verbose = true; // verbosity required
146 args[nargs] = argv[i]; // pass the argument along
147 nargs += 1;
148 } else if ( arg == "-g" ) {
149 debugging = true; // symbolic debugging required
150 args[nargs] = argv[i]; // pass the argument along
151 nargs += 1;
152 } else if ( prefix( arg, "-B" ) ) {
153 Bprefix = arg.substr(2); // strip the -B flag
154 args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
155 nargs += 1;
156 } else if ( prefix( arg, "-b" ) ) {
157 if ( arg.length() == 2 ) { // separate argument ?
158 i += 1;
159 if ( i == argc ) continue; // next argument available ?
160 arg += argv[i]; // concatenate argument
161 } // if
162 // later versions of gcc require the -b option to appear at the start of the command line
163 shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
164 args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
165 if ( putenv( (char *)( *new string( string( "__GCC_MACHINE__=" ) + arg ) ).c_str() ) != 0 ) {
166 cerr << argv[0] << " error, cannot set environment variable." << endl;
167 exit( EXIT_FAILURE );
168 } // if
169 sargs += 1;
170 nargs += 1;
171 } else if ( prefix( arg, "-V" ) ) {
172 if ( arg.length() == 2 ) { // separate argument ?
173 i += 1;
174 if ( i == argc ) continue; // next argument available ?
175 arg += argv[i]; // concatenate argument
176 } // if
177 // later versions of gcc require the -V option to appear at the start of the command line
178 shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
179 args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
180 if ( putenv( (char *)( *new string( string( "__GCC_VERSION__=" ) + arg ) ).c_str() ) != 0 ) {
181 cerr << argv[0] << " error, cannot set environment variable." << endl;
182 exit( EXIT_FAILURE );
183 } // if
184 sargs += 1;
185 nargs += 1;
186 } else if ( arg == "-c" || arg == "-S" || arg == "-E" || arg == "-M" || arg == "-MM" ) {
187 args[nargs] = argv[i]; // pass the argument along
188 nargs += 1;
189 if ( arg == "-E" || arg == "-M" || arg == "-MM" ) {
190 cpp_flag = true; // cpp only
191 } // if
192 link = false; // no linkage required
193 } else if ( arg[1] == 'l' ) {
194 // if the user specifies a library, load it after user code
195 libs[nlibs] = argv[i];
196 nlibs += 1;
197 } else {
198 // concatenate any other arguments
199 args[nargs] = argv[i];
200 nargs += 1;
201 } // if
202 } else {
203 // concatenate other arguments
204 args[nargs] = argv[i];
205 nargs += 1;
206 nonoptarg = true;
207 } // if
208 } // for
209
210#ifdef __DEBUG_H__
211 cerr << "args:";
212 for ( int i = 1; i < nargs; i += 1 ) {
213 cerr << " " << args[i];
214 } // for
215 cerr << endl;
216#endif // __DEBUG_H__
217
218 if ( cpp_flag && CFA_flag ) {
219 cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
220 exit( EXIT_FAILURE );
221 } // if
222
223 string d;
224 if ( debug ) {
225 d = "-d";
226 } // if
227
228 if ( link ) {
229 // include the cfa library in case it's needed
230 args[nargs] = "-L" CFA_LIBDIR;
231 nargs += 1;
232 args[nargs] = "-lcfa";
233 nargs += 1;
234 } // if
235
236 // add the correct set of flags based on the type of compile this is
237
238 args[nargs] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
239 nargs += 1;
240 args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
241 nargs += 1;
242
243 if ( cpp_flag ) {
244 args[nargs] = "-D__CPP__";
245 nargs += 1;
246 } // if
247
248 if ( CFA_flag ) {
249 args[nargs] = "-D__CFA__";
250 nargs += 1;
251 } // if
252
253 if ( debug ) {
254 heading += " (debug)";
255 args[nargs] = "-D__CFA_DEBUG__";
256 nargs += 1;
257 } else {
258 heading += " (no debug)";
259 } // if
260
261 if ( Bprefix.length() == 0 ) {
262 Bprefix = installlibdir;
263 args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
264 nargs += 1;
265 } // if
266
267 // execute the compilation command
268
269 args[0] = compiler_path.c_str(); // set compiler command for exec
270 // find actual name of the compiler independent of the path to it
271 int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
272 if ( p == -1 ) {
273 compiler_name = compiler_path;
274 } else {
275 compiler_name = *new string( compiler_path.substr( p + 1 ) );
276 } // if
277
278 if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
279 args[nargs] = "-no-integrated-cpp";
280 nargs += 1;
281 args[nargs] = "-Wno-deprecated";
282 nargs += 1;
283 args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str();
284 nargs += 1;
285 } else {
286 cerr << argv[0] << " error, compiler " << compiler_name << " not supported." << endl;
287 exit( EXIT_FAILURE );
288 } // if
289
290 for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
291 args[nargs] = libs[i];
292 nargs += 1;
293 } // for
294
295 args[nargs] = NULL; // terminate with NULL
296
297#ifdef __DEBUG_H__
298 cerr << "nargs: " << nargs << endl;
299 cerr << "args:" << endl;
300 for ( int i = 0; args[i] != NULL; i += 1 ) {
301 cerr << " \"" << args[i] << "\"" << endl;
302 } // for
303#endif // __DEBUG_H__
304
305 if ( ! quiet ) {
306 cerr << "CFA " << "Version " << Version << heading << endl;
307
308 if ( help ) {
309 cerr <<
310 "-debug\t\t\t: use cfa runtime with debug checking" << endl <<
311 "-help\t\t\t: print this help message" << endl <<
312 "-quiet\t\t\t: print no messages from the cfa command" << endl <<
313 "-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
314 "-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
315 "...\t\t\t: any other " << compiler_name << " flags" << endl;
316 } // if
317 } // if
318
319 if ( verbose ) {
320 if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
321
322 for ( int i = 0; args[i] != NULL; i += 1 ) {
323 cerr << args[i] << " ";
324 } // for
325 cerr << endl;
326 } // if
327
328 if ( ! nonoptarg ) {
329 cerr << argv[0] << " error, no input files" << endl;
330 exit( EXIT_FAILURE );
331 } // if
332
333 // execute the command and return the result
334
335 execvp( args[0], (char *const *)args ); // should not return
336 perror( "CFA Translator error: cfa level, execvp" );
337 exit( EXIT_FAILURE );
338} // main
339
340// Local Variables: //
341// compile-command: "make install" //
342// End: //
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