source: driver/cc1.cc@ d978ada

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr no_list persistent-indexer pthread-emulation qualifiedEnum
Last change on this file since d978ada was bf71cfd, checked in by Thierry Delisle <tdelisle@…>, 7 years ago

Moved up many directories in source
  • Property mode set to 100644
File size: 15.8 KB
RevLine 
[b87a5ed]1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
[51b73452]7// cc1.cc --
[b87a5ed]8//
9// Author : Peter A. Buhr
[51b73452]10// Created On : Fri Aug 26 14:23:51 2005
11// Last Modified By : Peter A. Buhr
[68bceeb]12// Last Modified On : Thu Jul 19 10:46:11 2018
13// Update Count : 111
[51b73452]14//
15
16#include <iostream>
17using std::cerr;
18using std::endl;
19#include <string>
20using std::string;
[b87a5ed]21#include <cstdio> // stderr, stdout, perror, fprintf
22#include <cstdlib> // getenv, exit, mkstemp
23#include <unistd.h> // execvp, fork, unlink
24#include <sys/wait.h> // wait
[51b73452]25
[b87a5ed]26#include "config.h" // configure info
[51b73452]27
28
29//#define __DEBUG_H__
30
31
[e24f13a]32string compiler_name( CFA_BACKEND_CC ); // path/name of C compiler
[51b73452]33
[e3215c5]34string D__GCC_X__( "-D__GCC_X__=" );
[51b73452]35string D__GCC_BPREFIX__( "-D__GCC_BPREFIX__=" );
[d9a0e76]36string D__CFA_FLAGPREFIX__( "-D__CFA_FLAG__=" );
[51b73452]37
[bdd516a]38char tmpname[] = P_tmpdir "/CFAXXXXXX";
39int tmpfilefd = -1;
40
[51b73452]41
42bool prefix( string arg, string pre ) {
[b87a5ed]43 return arg.substr( 0, pre.size() ) == pre;
[51b73452]44} // prefix
45
[dffaeac]46enum { NumSuffixes = 2 };
47const string suffixes[NumSuffixes] = { "cfa", "hfa", };
48
49bool suffix( string arg ) {
50 //std::cerr << arg << std::endl;
51 size_t dot = arg.find_last_of( "." );
52 //std::cerr << dot << " " << (dot != string::npos ? arg.substr( dot + 1 ) : "fred" ) << std::endl;
53 if ( dot == string::npos ) return false;
54 string sx = arg.substr( dot + 1 );
55 for ( int i = 0; i < NumSuffixes; i += 1 ) {
56 if ( sx == suffixes[i] ) return true;
57 } // for
58 return false;
59} // suffix
60
[51b73452]61
62void checkEnv( const char *args[], int &nargs ) {
[b87a5ed]63 char *value;
[51b73452]64
[b87a5ed]65 value = getenv( "__COMPILER__" );
66 if ( value != NULL ) {
67 compiler_name = value;
[dffaeac]68 #ifdef __DEBUG_H__
[b87a5ed]69 cerr << "env arg:\"" << compiler_name << "\"" << endl;
[dffaeac]70 #endif // __DEBUG_H__
[b87a5ed]71 } // if
[51b73452]72
[b87a5ed]73 value = getenv( "__GCC_MACHINE__" );
74 if ( value != NULL ) {
75 args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along
[dffaeac]76 #ifdef __DEBUG_H__
[b87a5ed]77 cerr << "env arg:\"" << args[nargs] << "\"" << endl;
[dffaeac]78 #endif // __DEBUG_H__
[b87a5ed]79 nargs += 1;
80 } // if
[51b73452]81
[b87a5ed]82 value = getenv( "__GCC_VERSION__" );
83 if ( value != NULL ) {
84 args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along
[dffaeac]85 #ifdef __DEBUG_H__
[b87a5ed]86 cerr << "env arg:\"" << args[nargs] << "\"" << endl;
[dffaeac]87 #endif // __DEBUG_H__
[b87a5ed]88 nargs += 1;
89 } // if
[51b73452]90} // checkEnv
91
92
[bdd516a]93void rmtmpfile() {
[b87a5ed]94 if ( unlink( tmpname ) == -1 ) { // remove tmpname
95 perror ( "CFA Translator error: cpp failed" );
96 exit( EXIT_FAILURE );
97 } // if
98 tmpfilefd = -1; // mark closed
[bdd516a]99} // rmtmpfile
100
101
[b3c36f4]102void sigTermHandler( __attribute__((unused)) int signal ) {
[b87a5ed]103 if ( tmpfilefd != -1 ) { // RACE, file created ?
104 rmtmpfile(); // remove
105 exit( EXIT_FAILURE ); // terminate
106 } // if
[bdd516a]107} // sigTermHandler
108
109
[51b73452]110void Stage1( const int argc, const char * const argv[] ) {
[b87a5ed]111 int code;
112 int i;
[51b73452]113
[b87a5ed]114 string arg;
115 string bprefix;
[51b73452]116
[b87a5ed]117 const char *cpp_in = NULL;
118 const char *cpp_out = NULL;
[51b73452]119
[b87a5ed]120 bool CFA_flag = false;
121 bool cpp_flag = false;
122 const char *o_name = NULL;
[51b73452]123
[b87a5ed]124 const char *args[argc + 100]; // leave space for 100 additional cpp command line values
125 int nargs = 1; // number of arguments in args list; 0 => command name
[7b937575]126 const char *cargs[20]; // leave space for 20 additional cfa-cpp command line values
127 int ncargs = 1; // 0 => command name
[51b73452]128
[b87a5ed]129 signal( SIGINT, sigTermHandler );
130 signal( SIGTERM, sigTermHandler );
[bdd516a]131
[dffaeac]132 #ifdef __DEBUG_H__
[7b937575]133 cerr << "Stage1" << endl;
[dffaeac]134 #endif // __DEBUG_H__
[7b937575]135
[b87a5ed]136 // process all the arguments
[51b73452]137
[b87a5ed]138 checkEnv( args, nargs ); // arguments passed via environment variables
[51b73452]139
[b87a5ed]140 for ( i = 1; i < argc; i += 1 ) {
[dffaeac]141 #ifdef __DEBUG_H__
[b87a5ed]142 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
[dffaeac]143 #endif // __DEBUG_H__
[b87a5ed]144 arg = argv[i];
[dffaeac]145 #ifdef __DEBUG_H__
[b87a5ed]146 cerr << "arg:\"" << arg << "\"" << endl;
[dffaeac]147 #endif // __DEBUG_H__
[b87a5ed]148 if ( prefix( arg, "-" ) ) {
149 // strip g++ flags that are inappropriate or cause duplicates in subsequent passes
150
151 if ( arg == "-quiet" ) {
152 } else if ( arg == "-imultilib" || arg == "-imultiarch" ) {
153 i += 1; // and the argument
154 } else if ( prefix( arg, "-A" ) ) {
155 } else if ( prefix( arg, "-D__GNU" ) ) {
156 //********
157 // GCC 5.6.0 SEPARATED THE -D FROM THE ARGUMENT!
158 //********
159 } else if ( arg == "-D" && prefix( argv[i + 1], "__GNU" ) ) {
160 i += 1; // and the argument
161
162 // strip flags controlling cpp step
163
164 } else if ( arg == "-D__CPP__" ) {
165 cpp_flag = true;
166 } else if ( arg == "-D" && string( argv[i + 1] ) == "__CPP__" ) {
167 i += 1; // and the argument
168 cpp_flag = true;
[4c82a3c]169 } else if ( arg == "-D__CFA_PREPROCESS__" ) {
[b87a5ed]170 CFA_flag = true;
[4c82a3c]171 } else if ( arg == "-D" && string( argv[i + 1] ) == "__CFA_PREPROCESS__" ) {
[b87a5ed]172 i += 1; // and the argument
173 CFA_flag = true;
174 } else if ( prefix( arg, D__CFA_FLAGPREFIX__ ) ) {
[7b937575]175 cargs[ncargs] = ( *new string( arg.substr( D__CFA_FLAGPREFIX__.size() ) ) ).c_str();
176 ncargs += 1;
[b87a5ed]177 } else if ( arg == "-D" && prefix( argv[i + 1], D__CFA_FLAGPREFIX__.substr(2) ) ) {
[7b937575]178 cargs[ncargs] = ( *new string( string( argv[i + 1] ).substr( D__CFA_FLAGPREFIX__.size() - 2 ) ) ).c_str();
179 ncargs += 1;
[b87a5ed]180 i += 1; // and the argument
[dffaeac]181 // } else if ( prefix( arg, D__GCC_X__ ) ) {
182 // args[nargs] = "-x";
183 // nargs += 1;
184 // args[nargs] = ( *new string( arg.substr( D__GCC_X__.size() ) ) ).c_str(); // pass the flag along
185 // nargs += 1;
186 // } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_X__.substr(2) ) ) {
187 // args[nargs] = "-x";
188 // nargs += 1;
189 // args[nargs] = ( *new string( string( argv[i + 1] ).substr( D__GCC_X__.size() - 2 ) ) ).c_str(); // pass the flag along
190 // nargs += 1;
191 // i += 1; // and the argument
[b87a5ed]192 } else if ( prefix( arg, D__GCC_BPREFIX__ ) ) {
193 bprefix = arg.substr( D__GCC_BPREFIX__.size() );
194 } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_BPREFIX__.substr(2) ) ) {
195 bprefix = string( argv[i + 1] ).substr( D__GCC_BPREFIX__.size() - 2 );
196 i += 1; // and the argument
197
[f8b6d921]198 // all other flags
[b87a5ed]199
200 } else if ( arg == "-o" ) {
201 i += 1;
202 o_name = argv[i];
203 } else {
204 args[nargs] = argv[i]; // pass the flag along
205 nargs += 1;
206 // CPP flags with an argument
[f8b6d921]207 if ( arg == "-D" || arg == "-U" || arg == "-I" || arg == "-MF" || arg == "-MT" || arg == "-MQ" ||
[b87a5ed]208 arg == "-include" || arg == "-imacros" || arg == "-idirafter" || arg == "-iprefix" ||
209 arg == "-iwithprefix" || arg == "-iwithprefixbefore" || arg == "-isystem" || arg == "-isysroot" ) {
210 i += 1;
211 args[nargs] = argv[i]; // pass the argument along
212 nargs += 1;
[dffaeac]213 #ifdef __DEBUG_H__
[b87a5ed]214 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
[dffaeac]215 #endif // __DEBUG_H__
[b87a5ed]216 } else if ( arg == "-MD" || arg == "-MMD" ) {
217 args[nargs] = "-MF"; // insert before file
218 nargs += 1;
219 i += 1;
220 args[nargs] = argv[i]; // pass the argument along
221 nargs += 1;
[dffaeac]222 #ifdef __DEBUG_H__
[b87a5ed]223 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
[dffaeac]224 #endif // __DEBUG_H__
[b87a5ed]225 } // if
226 } // if
227 } else { // obtain input and possibly output files
228 if ( cpp_in == NULL ) {
229 cpp_in = argv[i];
[dffaeac]230 #ifdef __DEBUG_H__
[b87a5ed]231 cerr << "cpp_in:\"" << cpp_in << "\"" << endl;
[dffaeac]232 #endif // __DEBUG_H__
[b87a5ed]233 } else if ( cpp_out == NULL ) {
234 cpp_out = argv[i];
[dffaeac]235 #ifdef __DEBUG_H__
[b87a5ed]236 cerr << "cpp_out:\"" << cpp_out << "\""<< endl;
[dffaeac]237 #endif // __DEBUG_H__
[b87a5ed]238 } else {
239 cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
240 exit( EXIT_FAILURE );
241 } // if
242 } // if
243 } // for
244
[dffaeac]245 #ifdef __DEBUG_H__
[b87a5ed]246 cerr << "args:";
247 for ( i = 1; i < nargs; i += 1 ) {
248 cerr << " " << args[i];
249 } // for
250 if ( cpp_in != NULL ) cerr << " " << cpp_in;
251 if ( cpp_out != NULL ) cerr << " " << cpp_out;
252 cerr << endl;
[dffaeac]253 #endif // __DEBUG_H__
[b87a5ed]254
255 if ( cpp_in == NULL ) {
[51b73452]256 cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
257 exit( EXIT_FAILURE );
258 } // if
[b87a5ed]259
260 if ( cpp_flag ) {
261 // The -E flag is specified on the cfa command so only run the preprocessor and output is written to standard
262 // output or -o. The call to cfa has a -E so it does not have to be added to the argument list.
263
264 args[0] = compiler_name.c_str();
265 args[nargs] = cpp_in;
266 nargs += 1;
267 if ( o_name != NULL ) { // location for output
268 args[nargs] = "-o";
269 nargs += 1;
270 args[nargs] = o_name;
271 nargs += 1;
272 } // if
273 args[nargs] = NULL; // terminate argument list
[51b73452]274
[dffaeac]275 #ifdef __DEBUG_H__
[b87a5ed]276 cerr << "nargs: " << nargs << endl;
277 for ( i = 0; args[i] != NULL; i += 1 ) {
278 cerr << args[i] << " ";
279 } // for
280 cerr << endl;
[dffaeac]281 #endif // __DEBUG_H__
[51b73452]282
[b87a5ed]283 execvp( args[0], (char *const *)args ); // should not return
284 perror( "CFA Translator error: cpp level, execvp" );
285 exit( EXIT_FAILURE );
286 } // if
[51b73452]287
[b87a5ed]288 // Create a temporary file to store output of the C preprocessor.
[51b73452]289
[b87a5ed]290 tmpfilefd = mkstemp( tmpname );
291 if ( tmpfilefd == -1 ) {
292 perror( "CFA Translator error: cpp level, mkstemp" );
293 exit( EXIT_FAILURE );
[51b73452]294 } // if
295
[dffaeac]296 #ifdef __DEBUG_H__
[b87a5ed]297 cerr << "tmpname:" << tmpname << " tmpfilefd:" << tmpfilefd << endl;
[dffaeac]298 #endif // __DEBUG_H__
[51b73452]299
[b87a5ed]300 // Run the C preprocessor and save the output in tmpfile.
[51b73452]301
[b87a5ed]302 if ( fork() == 0 ) { // child process ?
303 // -o xxx.ii cannot be used to write the output file from cpp because no output file is created if cpp detects
304 // an error (e.g., cannot find include file). Whereas, output is always generated, even when there is an error,
305 // when cpp writes to stdout. Hence, stdout is redirected into the temporary file.
306 if ( freopen( tmpname, "w", stdout ) == NULL ) { // redirect stdout to tmpname
307 perror( "CFA Translator error: cpp level, freopen" );
308 exit( EXIT_FAILURE );
309 } // if
[51b73452]310
[b87a5ed]311 args[0] = compiler_name.c_str();
[dffaeac]312 if ( suffix( cpp_in ) ) {
313 args[nargs] = "-x";
314 nargs += 1;
315 args[nargs] = "c";
316 nargs += 1;
317 } // if
[b87a5ed]318 args[nargs] = cpp_in; // input to cpp
319 nargs += 1;
320 args[nargs] = NULL; // terminate argument list
[51b73452]321
[dffaeac]322 #ifdef __DEBUG_H__
[b87a5ed]323 cerr << "cpp nargs: " << nargs << endl;
324 for ( i = 0; args[i] != NULL; i += 1 ) {
325 cerr << args[i] << " ";
326 } // for
327 cerr << endl;
[dffaeac]328 #endif // __DEBUG_H__
[51b73452]329
[b87a5ed]330 execvp( args[0], (char *const *)args ); // should not return
331 perror( "CFA Translator error: cpp level, execvp" );
332 exit( EXIT_FAILURE );
[51b73452]333 } // if
334
[b87a5ed]335 wait( &code ); // wait for child to finish
[51b73452]336
[dffaeac]337 #ifdef __DEBUG_H__
[b87a5ed]338 cerr << "return code from cpp:" << WEXITSTATUS(code) << endl;
[dffaeac]339 #endif // __DEBUG_H__
[51b73452]340
[b87a5ed]341 if ( WIFSIGNALED(code) != 0 ) { // child failed ?
342 rmtmpfile(); // remove tmpname
343 cerr << "CFA Translator error: cpp failed with signal " << WTERMSIG(code) << endl;
344 exit( EXIT_FAILURE );
345 } // if
[51b73452]346
[b87a5ed]347 if ( WEXITSTATUS(code) != 0 ) { // child error ?
348 rmtmpfile(); // remove tmpname
349 exit( WEXITSTATUS( code ) ); // do not continue
350 } // if
[51b73452]351
[b87a5ed]352 // If -CFA flag specified, run the cfa-cpp preprocessor on the temporary file, and output is written to standard
353 // output. Otherwise, run the cfa-cpp preprocessor on the temporary file and save the result into the output file.
[51b73452]354
[b87a5ed]355 if ( fork() == 0 ) { // child runs CFA
[7b937575]356 cargs[0] = ( *new string( bprefix + "/cfa-cpp" ) ).c_str();
[b87a5ed]357
[4acc87f]358 // Source file-name used to generate routine names containing global initializations for TU.
[7b937575]359 cargs[ncargs] = ( *new string( "-F" ) ).c_str();
360 ncargs += 1;
[4acc87f]361 cargs[ncargs] = ( *new string( string( cpp_in ) ) ).c_str();
[7b937575]362 ncargs += 1;
363
364 cargs[ncargs] = tmpname;
365 ncargs += 1;
[b87a5ed]366 if ( o_name != NULL ) {
[7b937575]367 cargs[ncargs] = o_name;
368 ncargs += 1;
[b87a5ed]369 } else if ( ! CFA_flag ) { // run cfa-cpp ?
[7b937575]370 cargs[ncargs] = cpp_out;
371 ncargs += 1;
[b87a5ed]372 } // if
[7b937575]373 cargs[ncargs] = NULL; // terminate argument list
[51b73452]374
[dffaeac]375 #ifdef __DEBUG_H__
[7b937575]376 cerr << "cfa-cpp ncargs: " << o_name << " " << CFA_flag << " " << ncargs << endl;
377 for ( i = 0; cargs[i] != NULL; i += 1 ) {
378 cerr << cargs[i] << " ";
[b87a5ed]379 } // for
380 cerr << endl;
[dffaeac]381 #endif // __DEBUG_H__
[51b73452]382
[7b937575]383 execvp( cargs[0], (char * const *)cargs ); // should not return
[b87a5ed]384 perror( "CFA Translator error: cpp level, execvp" );
385 exit( EXIT_FAILURE );
386 } // if
[51b73452]387
[b87a5ed]388 wait( &code ); // wait for child to finish
[51b73452]389
[dffaeac]390 #ifdef __DEBUG_H__
[b87a5ed]391 cerr << "return code from cfa-cpp:" << WEXITSTATUS(code) << endl;
[dffaeac]392 #endif // __DEBUG_H__
[51b73452]393
[b87a5ed]394 // Must unlink here because file must exist across execvp.
395 rmtmpfile(); // remove tmpname
[51b73452]396
[b87a5ed]397 if ( WIFSIGNALED(code) ) { // child failed ?
398 cerr << "CFA Translator error: cfa-cpp failed with signal " << WTERMSIG(code) << endl;
399 exit( EXIT_FAILURE );
400 } // if
[51b73452]401
[b87a5ed]402 exit( WEXITSTATUS(code) );
[51b73452]403} // Stage1
404
405
406void Stage2( const int argc, const char * const * argv ) {
[b87a5ed]407 int i;
[51b73452]408
[b87a5ed]409 string arg;
[51b73452]410
[b87a5ed]411 const char *cpp_in = NULL;
[51b73452]412
[b87a5ed]413 const char *args[argc + 100]; // leave space for 100 additional cfa command line values
414 int nargs = 1; // number of arguments in args list; 0 => command name
[51b73452]415
[dffaeac]416 #ifdef __DEBUG_H__
[7b937575]417 cerr << "Stage2" << endl;
[dffaeac]418 #endif // __DEBUG_H__
[7b937575]419
[b87a5ed]420 // process all the arguments
[51b73452]421
[b87a5ed]422 checkEnv( args, nargs ); // arguments passed via environment variables
[51b73452]423
[b87a5ed]424 for ( i = 1; i < argc; i += 1 ) {
[dffaeac]425 #ifdef __DEBUG_H__
[b87a5ed]426 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
[dffaeac]427 #endif // __DEBUG_H__
[b87a5ed]428 arg = argv[i];
[dffaeac]429 #ifdef __DEBUG_H__
[b87a5ed]430 cerr << "arg:\"" << arg << "\"" << endl;
[dffaeac]431 #endif // __DEBUG_H__
[b87a5ed]432 if ( prefix( arg, "-" ) ) {
433 // strip inappropriate flags
[51b73452]434
[b87a5ed]435 if ( arg == "-quiet" || arg == "-version" || arg == "-fpreprocessed" ||
[dffaeac]436 // Currently CFA does not suppose precompiled .h files.
437 prefix( arg, "--output-pch" ) ) {
[51b73452]438
[b87a5ed]439 // strip inappropriate flags with an argument
[51b73452]440
[b87a5ed]441 } else if ( arg == "-auxbase" || arg == "-auxbase-strip" || arg == "-dumpbase" ) {
442 i += 1;
[dffaeac]443 #ifdef __DEBUG_H__
[b87a5ed]444 cerr << "arg:\"" << argv[i] << "\"" << endl;
[dffaeac]445 #endif // __DEBUG_H__
[51b73452]446
[b87a5ed]447 // all other flags
[51b73452]448
[b87a5ed]449 } else {
450 args[nargs] = argv[i]; // pass the flag along
451 nargs += 1;
452 if ( arg == "-o" ) {
453 i += 1;
454 args[nargs] = argv[i]; // pass the argument along
455 nargs += 1;
[68bceeb]456 #ifdef __DEBUG_H__
[b87a5ed]457 cerr << "arg:\"" << argv[i] << "\"" << endl;
[68bceeb]458 #endif // __DEBUG_H__
[b87a5ed]459 } // if
460 } // if
461 } else { // obtain input and possibly output files
462 if ( cpp_in == NULL ) {
463 cpp_in = argv[i];
[dffaeac]464 #ifdef __DEBUG_H__
[b87a5ed]465 cerr << "cpp_in:\"" << cpp_in << "\"" << endl;
[dffaeac]466 #endif // __DEBUG_H__
[b87a5ed]467 } else {
468 cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
469 exit( EXIT_FAILURE );
470 } // if
471 } // if
472 } // for
[51b73452]473
[dffaeac]474 #ifdef __DEBUG_H__
[b87a5ed]475 cerr << "args:";
476 for ( i = 1; i < nargs; i += 1 ) {
477 cerr << " " << args[i];
478 } // for
479 cerr << endl;
480 if ( cpp_in != NULL ) cerr << " " << cpp_in;
[dffaeac]481 #endif // __DEBUG_H__
[51b73452]482
[b87a5ed]483 args[0] = compiler_name.c_str();
484 args[nargs] = "-S"; // only compile and put assembler output in specified file
485 nargs += 1;
486 args[nargs] = cpp_in;
487 nargs += 1;
488 args[nargs] = NULL; // terminate argument list
[51b73452]489
[dffaeac]490 #ifdef __DEBUG_H__
[b87a5ed]491 cerr << "stage2 nargs: " << nargs << endl;
492 for ( i = 0; args[i] != NULL; i += 1 ) {
493 cerr << args[i] << " ";
494 } // for
495 cerr << endl;
[dffaeac]496 #endif // __DEBUG_H__
[51b73452]497
[b87a5ed]498 execvp( args[0], (char * const *)args ); // should not return
499 perror( "CFA Translator error: cpp level, execvp" );
500 exit( EXIT_FAILURE ); // tell gcc not to go any further
[51b73452]501} // Stage2
502
503
[b3c36f4]504int main( const int argc, const char * const argv[], __attribute__((unused)) const char * const env[] ) {
[dffaeac]505 #ifdef __DEBUG_H__
[b87a5ed]506 for ( int i = 0; env[i] != NULL; i += 1 ) {
507 cerr << env[i] << endl;
508 } // for
[dffaeac]509 #endif // __DEBUG_H__
[51b73452]510
[b87a5ed]511 string arg = argv[1];
[51b73452]512
[b87a5ed]513 // Currently, stage 1 starts with flag -E and stage 2 with flag -fpreprocessed.
[51b73452]514
[b87a5ed]515 if ( arg == "-E" ) {
516 Stage1( argc, argv );
517 } else if ( arg == "-fpreprocessed" ) {
518 Stage2( argc, argv );
519 } else {
520 cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
521 exit( EXIT_FAILURE );
522 } // if
[51b73452]523} // main
524
525// Local Variables: //
[b87a5ed]526// tab-width: 4 //
527// mode: c++ //
[51b73452]528// compile-command: "make install" //
529// End: //
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