Changes in driver/cc1.cc [7c8246d:6dc19544]
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driver/cc1.cc (modified) (16 diffs)
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driver/cc1.cc
r7c8246d r6dc19544 10 10 // Created On : Fri Aug 26 14:23:51 2005 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Fri Aug 30 15:36:42 201913 // Update Count : 37712 // Last Modified On : Mon Sep 3 16:57:05 2018 13 // Update Count : 125 14 14 // 15 15 … … 19 19 #include <string> 20 20 using std::string; 21 #include <algorithm> // find22 21 #include <cstdio> // stderr, stdout, perror, fprintf 23 22 #include <cstdlib> // getenv, exit, mkstemp 24 23 #include <unistd.h> // execvp, fork, unlink 25 24 #include <sys/wait.h> // wait 26 #include <fcntl.h>27 28 25 29 26 #include "config.h" // configure info … … 33 30 34 31 35 static string compiler_path( CFA_BACKEND_CC ); // C compiler path/name 36 static bool CFA_flag = false; // -CFA flag 37 static bool save_temps = false; // -save-temps flag 38 static string o_file; 39 static string bprefix; 40 41 42 static bool prefix( const string & arg, const string & pre ) { 32 string compiler_name( CFA_BACKEND_CC ); // path/name of C compiler 33 34 string D__GCC_BPREFIX__( "-D__GCC_BPREFIX__=" ); 35 string D__CFA_FLAGPREFIX__( "-D__CFA_FLAG__=" ); 36 37 char tmpname[] = P_tmpdir "/CFAXXXXXX"; 38 int tmpfilefd = -1; 39 40 41 bool prefix( string arg, string pre ) { 43 42 return arg.substr( 0, pre.size() ) == pre; 44 43 } // prefix 45 44 46 static void suffix( const string & arg, const char * args[], int & nargs ) { 47 enum { NumSuffixes = 3 }; 48 static const string suffixes[NumSuffixes] = { "cfa", "hfa", "ifa" }; 49 45 enum { NumSuffixes = 2 }; 46 const string suffixes[NumSuffixes] = { "cfa", "hfa", }; 47 48 void suffix( string arg, const char * args[], int & nargs ) { 49 //std::cerr << arg << std::endl; 50 50 size_t dot = arg.find_last_of( "." ); 51 //std::cerr << dot << " " << (dot != string::npos ? arg.substr( dot + 1 ) : "fred" ) << std::endl; 51 52 if ( dot == string::npos ) return; 52 const string * end = suffixes + NumSuffixes; 53 if ( std::find( suffixes, end, arg.substr( dot + 1 ) ) != end ) { 54 args[nargs++] = "-x"; 55 args[nargs++] = "c"; 56 } // if 53 string sx = arg.substr( dot + 1 ); 54 for ( int i = 0; i < NumSuffixes; i += 1 ) { 55 if ( sx == suffixes[i] ) { 56 args[nargs] = "-x"; 57 nargs += 1; 58 args[nargs] = "c"; 59 nargs += 1; 60 return; 61 } // if 62 } // for 57 63 } // suffix 58 64 59 65 60 static string __CFA_FLAGPREFIX__( "__CFA_FLAG" ); 61 62 static void checkEnv1( const char * args[], int & nargs ) { // stage 1 63 extern char ** environ; 64 65 for ( int i = 0; environ[i]; i += 1 ) { 66 string arg( environ[i] ); 66 void checkEnv( const char * args[], int & nargs ) { 67 char *value; 68 69 value = getenv( "__CFA_COMPILER__" ); 70 if ( value != NULL ) { 71 compiler_name = value; 67 72 #ifdef __DEBUG_H__ 68 cerr << "env arg:\"" << arg<< "\"" << endl;73 cerr << "env arg:\"" << compiler_name << "\"" << endl; 69 74 #endif // __DEBUG_H__ 70 71 if ( prefix( arg, __CFA_FLAGPREFIX__ ) ) { 72 string val( arg.substr( __CFA_FLAGPREFIX__.size() + 4 ) ); 73 if ( prefix( val, "-compiler=" ) ) { 74 compiler_path = val.substr( 10 ); 75 } // if 76 } // if 77 } // for 78 } // checkEnv1 79 80 81 static void checkEnv2( const char * args[], int & nargs ) { // stage 2 82 extern char ** environ; 83 84 for ( int i = 0; environ[i]; i += 1 ) { 85 string arg( environ[i] ); 75 } // if 76 77 value = getenv( "__GCC_MACHINE__" ); 78 if ( value != NULL ) { 79 args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along 86 80 #ifdef __DEBUG_H__ 87 cerr << "env arg:\"" << arg << "\"" << endl;81 cerr << "env arg:\"" << args[nargs] << "\"" << endl; 88 82 #endif // __DEBUG_H__ 89 90 if ( prefix( arg, __CFA_FLAGPREFIX__ ) ) { 91 string val( arg.substr( __CFA_FLAGPREFIX__.size() + 4 ) ); 92 if ( prefix( val, "-compiler=" ) ) { 93 compiler_path = val.substr( 10 ); 94 } else if ( val == "-CFA" ) { 95 CFA_flag = true; 96 } else if ( val == "-save-temps" ) { 97 save_temps = true; 98 } else if ( prefix( val, "-o=" ) ) { // output file for -CFA 99 o_file = val.substr( 3 ); 100 } else if ( prefix( val, "-B=" ) ) { // location of cfa-cpp 101 bprefix = val.substr( 3 ); 102 } else { // normal flag for cfa-cpp 103 args[nargs++] = ( *new string( arg.substr( __CFA_FLAGPREFIX__.size() + 4 ) ) ).c_str(); 104 } // if 105 } // if 106 } // for 107 } // checkEnv2 108 109 110 static char tmpname[] = P_tmpdir "/CFAXXXXXX.i"; 111 static int tmpfilefd = -1; 112 static bool startrm = false; 113 114 static void rmtmpfile() { 115 if ( tmpfilefd == -1 ) return; // RACE, file created ? 116 117 startrm = true; // RACE with C-c C-c 83 nargs += 1; 84 } // if 85 86 value = getenv( "__GCC_VERSION__" ); 87 if ( value != NULL ) { 88 args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along 89 #ifdef __DEBUG_H__ 90 cerr << "env arg:\"" << args[nargs] << "\"" << endl; 91 #endif // __DEBUG_H__ 92 nargs += 1; 93 } // if 94 } // checkEnv 95 96 97 void rmtmpfile() { 118 98 if ( unlink( tmpname ) == -1 ) { // remove tmpname 119 perror ( "C C1 Translator error: failed, unlink" );120 exit( EXIT_FAILURE ); 121 } // if 122 tmpfilefd = -1; // mark removed99 perror ( "CFA Translator error: cpp failed" ); 100 exit( EXIT_FAILURE ); 101 } // if 102 tmpfilefd = -1; // mark closed 123 103 } // rmtmpfile 124 104 125 105 126 static void sigTermHandler( int ) { // C-c C-c 127 if ( startrm ) return; // return and let rmtmpfile finish, and then program finishes 128 106 void sigTermHandler( __attribute__((unused)) int signal ) { 129 107 if ( tmpfilefd != -1 ) { // RACE, file created ? 130 rmtmpfile(); // remove tmpname131 } // if132 exit( EXIT_FAILURE ); // terminate108 rmtmpfile(); // remove 109 exit( EXIT_FAILURE ); // terminate 110 } // if 133 111 } // sigTermHandler 134 112 135 113 136 staticvoid Stage1( const int argc, const char * const argv[] ) {114 void Stage1( const int argc, const char * const argv[] ) { 137 115 int code; 116 138 117 string arg; 139 140 const char * cpp_in = nullptr; 141 const char * cpp_out = nullptr; 142 118 string bprefix; 119 120 const char *cpp_in = NULL; 121 const char *cpp_out = NULL; 122 123 bool CFA_flag = false; 143 124 bool cpp_flag = false; 144 bool o_flag = false;145 146 const char * 125 const char *o_name = NULL; 126 127 const char *args[argc + 100]; // leave space for 100 additional cpp command line values 147 128 int nargs = 1; // number of arguments in args list; 0 => command name 129 const char *cargs[20]; // leave space for 20 additional cfa-cpp command line values 130 int ncargs = 1; // 0 => command name 131 132 signal( SIGINT, sigTermHandler ); 133 signal( SIGTERM, sigTermHandler ); 148 134 149 135 #ifdef __DEBUG_H__ 150 136 cerr << "Stage1" << endl; 151 137 #endif // __DEBUG_H__ 152 checkEnv 1( args, nargs ); // arguments passed via environment variables138 checkEnv( args, nargs ); // arguments passed via environment variables 153 139 #ifdef __DEBUG_H__ 154 140 for ( int i = 1; i < argc; i += 1 ) { … … 182 168 i += 1; // and the argument 183 169 cpp_flag = true; 184 185 // all other flags 170 } else if ( arg == "-D__CFA_PREPROCESS__" ) { 171 CFA_flag = true; 172 } else if ( arg == "-D" && string( argv[i + 1] ) == "__CFA_PREPROCESS__" ) { 173 i += 1; // and the argument 174 CFA_flag = true; 175 } else if ( prefix( arg, D__CFA_FLAGPREFIX__ ) ) { 176 cargs[ncargs] = ( *new string( arg.substr( D__CFA_FLAGPREFIX__.size() ) ) ).c_str(); 177 ncargs += 1; 178 } else if ( arg == "-D" && prefix( argv[i + 1], D__CFA_FLAGPREFIX__.substr(2) ) ) { 179 cargs[ncargs] = ( *new string( string( argv[i + 1] ).substr( D__CFA_FLAGPREFIX__.size() - 2 ) ) ).c_str(); 180 ncargs += 1; 181 i += 1; // and the argument 182 } else if ( prefix( arg, D__GCC_BPREFIX__ ) ) { 183 bprefix = arg.substr( D__GCC_BPREFIX__.size() ); 184 } else if ( arg == "-D" && prefix( argv[i + 1], D__GCC_BPREFIX__.substr(2) ) ) { 185 bprefix = string( argv[i + 1] ).substr( D__GCC_BPREFIX__.size() - 2 ); 186 i += 1; // and the argument 187 188 // all other flags 186 189 187 190 } else if ( arg == "-o" ) { 188 191 i += 1; 189 o_flag = true; 190 cpp_out = argv[i]; 192 o_name = argv[i]; 191 193 } else { 192 args[nargs++] = argv[i]; // pass the flag along 194 args[nargs] = argv[i]; // pass the flag along 195 nargs += 1; 193 196 // CPP flags with an argument 194 197 if ( arg == "-D" || arg == "-U" || arg == "-I" || arg == "-MF" || arg == "-MT" || arg == "-MQ" || … … 196 199 arg == "-iwithprefix" || arg == "-iwithprefixbefore" || arg == "-isystem" || arg == "-isysroot" ) { 197 200 i += 1; 198 args[nargs++] = argv[i]; // pass the argument along 201 args[nargs] = argv[i]; // pass the argument along 202 nargs += 1; 199 203 #ifdef __DEBUG_H__ 200 204 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; 201 205 #endif // __DEBUG_H__ 202 206 } else if ( arg == "-MD" || arg == "-MMD" ) { 203 args[nargs++] = "-MF"; // insert before file 207 args[nargs] = "-MF"; // insert before file 208 nargs += 1; 204 209 i += 1; 205 args[nargs++] = argv[i]; // pass the argument along 210 args[nargs] = argv[i]; // pass the argument along 211 nargs += 1; 206 212 #ifdef __DEBUG_H__ 207 213 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl; … … 210 216 } // if 211 217 } else { // obtain input and possibly output files 212 if ( cpp_in == nullptr) {218 if ( cpp_in == NULL ) { 213 219 cpp_in = argv[i]; 214 220 #ifdef __DEBUG_H__ 215 221 cerr << "cpp_in:\"" << cpp_in << "\"" << endl; 216 222 #endif // __DEBUG_H__ 217 } else if ( cpp_out == nullptr) {223 } else if ( cpp_out == NULL ) { 218 224 cpp_out = argv[i]; 219 225 #ifdef __DEBUG_H__ … … 232 238 cerr << " " << args[i]; 233 239 } // for 234 if ( cpp_in != nullptr) cerr << " " << cpp_in;235 if ( cpp_out != nullptr) cerr << " " << cpp_out;240 if ( cpp_in != NULL ) cerr << " " << cpp_in; 241 if ( cpp_out != NULL ) cerr << " " << cpp_out; 236 242 cerr << endl; 237 243 #endif // __DEBUG_H__ 238 244 239 if ( cpp_in == nullptr) {245 if ( cpp_in == NULL ) { 240 246 cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; 241 247 exit( EXIT_FAILURE ); … … 246 252 // output or -o. The call to cfa has a -E so it does not have to be added to the argument list. 247 253 248 args[0] = compiler_ path.c_str();254 args[0] = compiler_name.c_str(); 249 255 suffix( cpp_in, args, nargs ); // check suffix 250 args[nargs++] = cpp_in; 251 if ( o_flag ) { // location for output 252 args[nargs++] = "-o"; 256 args[nargs] = cpp_in; 257 nargs += 1; 258 if ( o_name != NULL ) { // location for output 259 args[nargs] = "-o"; 260 nargs += 1; 261 args[nargs] = o_name; 262 nargs += 1; 253 263 } // if 254 args[nargs++] = cpp_out; 255 args[nargs] = nullptr; // terminate argument list 264 args[nargs] = NULL; // terminate argument list 256 265 257 266 #ifdef __DEBUG_H__ 258 267 cerr << "nargs: " << nargs << endl; 259 for ( int i = 0; args[i] != nullptr; i += 1 ) {268 for ( int i = 0; args[i] != NULL; i += 1 ) { 260 269 cerr << args[i] << " "; 261 270 } // for … … 263 272 #endif // __DEBUG_H__ 264 273 265 execvp( args[0], (char * const *)args ); // should not return 266 perror( "CC1 Translator error: stage 1, execvp" ); 267 exit( EXIT_FAILURE ); 268 } // if 269 270 // Run the C preprocessor and save the output in the given file. 274 execvp( args[0], (char *const *)args ); // should not return 275 perror( "CFA Translator error: cpp level, execvp" ); 276 exit( EXIT_FAILURE ); 277 } // if 278 279 // Create a temporary file to store output of the C preprocessor. 280 281 tmpfilefd = mkstemp( tmpname ); 282 if ( tmpfilefd == -1 ) { 283 perror( "CFA Translator error: cpp level, mkstemp" ); 284 exit( EXIT_FAILURE ); 285 } // if 286 287 #ifdef __DEBUG_H__ 288 cerr << "tmpname:" << tmpname << " tmpfilefd:" << tmpfilefd << endl; 289 #endif // __DEBUG_H__ 290 291 // Run the C preprocessor and save the output in tmpfile. 271 292 272 293 if ( fork() == 0 ) { // child process ? … … 274 295 // an error (e.g., cannot find include file). Whereas, output is always generated, even when there is an error, 275 296 // when cpp writes to stdout. Hence, stdout is redirected into the temporary file. 276 if ( freopen( cpp_out, "w", stdout ) == nullptr ) { // redirect stdout to output file277 perror( "C C1 Translator error: stage 1, freopen" );297 if ( freopen( tmpname, "w", stdout ) == NULL ) { // redirect stdout to tmpname 298 perror( "CFA Translator error: cpp level, freopen" ); 278 299 exit( EXIT_FAILURE ); 279 300 } // if 280 301 281 args[0] = compiler_ path.c_str();302 args[0] = compiler_name.c_str(); 282 303 suffix( cpp_in, args, nargs ); // check suffix 283 args[nargs++] = cpp_in; // input to cpp 284 args[nargs] = nullptr; // terminate argument list 304 args[nargs] = cpp_in; // input to cpp 305 nargs += 1; 306 args[nargs] = NULL; // terminate argument list 285 307 286 308 #ifdef __DEBUG_H__ 287 309 cerr << "cpp nargs: " << nargs << endl; 288 for ( int i = 0; args[i] != nullptr; i += 1 ) {310 for ( int i = 0; args[i] != NULL; i += 1 ) { 289 311 cerr << args[i] << " "; 290 312 } // for … … 292 314 #endif // __DEBUG_H__ 293 315 294 execvp( args[0], (char * const *)args ); // should not return 295 perror( "CC1 Translator error: stage 1 cpp, execvp" ); 296 cerr << " invoked " << args[0] << endl; 316 execvp( args[0], (char *const *)args ); // should not return 317 perror( "CFA Translator error: cpp level, execvp" ); 297 318 exit( EXIT_FAILURE ); 298 319 } // if … … 304 325 #endif // __DEBUG_H__ 305 326 327 if ( WIFSIGNALED(code) != 0 ) { // child failed ? 328 rmtmpfile(); // remove tmpname 329 cerr << "CFA Translator error: cpp failed with signal " << WTERMSIG(code) << endl; 330 exit( EXIT_FAILURE ); 331 } // if 332 333 if ( WEXITSTATUS(code) != 0 ) { // child error ? 334 rmtmpfile(); // remove tmpname 335 exit( WEXITSTATUS( code ) ); // do not continue 336 } // if 337 338 // If -CFA flag specified, run the cfa-cpp preprocessor on the temporary file, and output is written to standard 339 // output. Otherwise, run the cfa-cpp preprocessor on the temporary file and save the result into the output file. 340 341 if ( fork() == 0 ) { // child runs CFA 342 cargs[0] = ( *new string( bprefix + "cfa-cpp" ) ).c_str(); 343 344 // Source file-name used to generate routine names containing global initializations for TU. 345 cargs[ncargs] = ( *new string( "-F" ) ).c_str(); 346 ncargs += 1; 347 cargs[ncargs] = ( *new string( string( cpp_in ) ) ).c_str(); 348 ncargs += 1; 349 350 cargs[ncargs] = tmpname; 351 ncargs += 1; 352 if ( o_name != NULL ) { 353 cargs[ncargs] = o_name; 354 ncargs += 1; 355 } else if ( ! CFA_flag ) { // run cfa-cpp ? 356 cargs[ncargs] = cpp_out; 357 ncargs += 1; 358 } // if 359 cargs[ncargs] = NULL; // terminate argument list 360 361 #ifdef __DEBUG_H__ 362 cerr << "cfa-cpp ncargs: " << (o_name ? o_name : "No -o") << " " << CFA_flag << " " << ncargs << endl; 363 for ( int i = 0; cargs[i] != NULL; i += 1 ) { 364 cerr << cargs[i] << " "; 365 } // for 366 cerr << endl; 367 #endif // __DEBUG_H__ 368 369 execvp( cargs[0], (char * const *)cargs ); // should not return 370 perror( "CFA Translator error: cpp level, execvp" ); 371 exit( EXIT_FAILURE ); 372 } // if 373 374 wait( &code ); // wait for child to finish 375 376 #ifdef __DEBUG_H__ 377 cerr << "return code from cfa-cpp:" << WEXITSTATUS(code) << endl; 378 #endif // __DEBUG_H__ 379 380 // Must unlink here because file must exist across execvp. 381 rmtmpfile(); // remove tmpname 382 306 383 if ( WIFSIGNALED(code) ) { // child failed ? 307 cerr << "C C1 Translator error: stage 1, child failed" << WTERMSIG(code) << endl;308 exit( EXIT_FAILURE ); 309 } // if 310 311 exit( WEXITSTATUS(code) ); // bad cpp result stops top-level gcc384 cerr << "CFA Translator error: cfa-cpp failed with signal " << WTERMSIG(code) << endl; 385 exit( EXIT_FAILURE ); 386 } // if 387 388 exit( WEXITSTATUS(code) ); 312 389 } // Stage1 313 390 314 391 315 static void Stage2( const int argc, const char * const * argv ) { 316 int code; 392 void Stage2( const int argc, const char * const * argv ) { 317 393 string arg; 318 394 319 const char * cpp_in = nullptr; 320 const char * cpp_out = nullptr; 321 322 const char * args[argc + 100]; // leave space for 100 additional cfa command line values 395 const char *cpp_in = NULL; 396 397 const char *args[argc + 100]; // leave space for 100 additional cfa command line values 323 398 int nargs = 1; // number of arguments in args list; 0 => command name 324 const char * cargs[20]; // leave space for 20 additional cfa-cpp command line values325 int ncargs = 1; // 0 => command name326 399 327 400 #ifdef __DEBUG_H__ 328 401 cerr << "Stage2" << endl; 329 402 #endif // __DEBUG_H__ 330 checkEnv 2( cargs, ncargs ); // arguments passed via environment variables403 checkEnv( args, nargs ); // arguments passed via environment variables 331 404 #ifdef __DEBUG_H__ 332 405 for ( int i = 1; i < argc; i += 1 ) { … … 357 430 358 431 } else { 359 args[nargs++] = argv[i]; // pass the flag along 432 args[nargs] = argv[i]; // pass the flag along 433 nargs += 1; 360 434 if ( arg == "-o" ) { 361 435 i += 1; 362 cpp_out = argv[i];363 args[nargs++] = argv[i]; // pass the argument along436 args[nargs] = argv[i]; // pass the argument along 437 nargs += 1; 364 438 #ifdef __DEBUG_H__ 365 439 cerr << "arg:\"" << argv[i] << "\"" << endl; … … 368 442 } // if 369 443 } else { // obtain input and possibly output files 370 if ( cpp_in == nullptr) {444 if ( cpp_in == NULL ) { 371 445 cpp_in = argv[i]; 372 446 #ifdef __DEBUG_H__ 373 447 cerr << "cpp_in:\"" << cpp_in << "\"" << endl; 374 448 #endif // __DEBUG_H__ 375 } else if ( cpp_out == nullptr ) {376 cpp_out = argv[i];377 #ifdef __DEBUG_H__378 cerr << "cpp_out:\"" << cpp_out << "\""<< endl;379 #endif // __DEBUG_H__380 449 } else { 381 cerr << "Usage: " << argv[0] << " more than two files specified" << endl;450 cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl; 382 451 exit( EXIT_FAILURE ); 383 452 } // if … … 385 454 } // for 386 455 387 if ( cpp_in == nullptr ) {388 cerr << "Usage: " << argv[0] << " missing input file" << endl;389 exit( EXIT_FAILURE );390 } // if391 if ( cpp_out == nullptr ) {392 cerr << "Usage: " << argv[0] << " missing output file" << endl;393 exit( EXIT_FAILURE );394 } // if395 396 // Create a temporary file, if needed, to store output of the cfa-cpp preprocessor. Cannot be created in forked397 // process because variables tmpname and tmpfilefd are cloned.398 399 string cfa_cpp_out;400 401 if ( ! CFA_flag ) { // run compiler ?402 if ( save_temps ) {403 cfa_cpp_out = cpp_in;404 size_t dot = cfa_cpp_out.find_last_of( "." );405 if ( dot == string::npos ) {406 cerr << "CC1 Translator error: stage 2, bad file name " << endl;407 exit( EXIT_FAILURE );408 } // if409 410 cfa_cpp_out = cfa_cpp_out.substr( 0, dot ) + ".ifa";411 if ( creat( cfa_cpp_out.c_str(), 0666 ) == -1 ) {412 perror( "CC1 Translator error: stage 2, creat" );413 exit( EXIT_FAILURE );414 } // if415 } else {416 tmpfilefd = mkstemps( tmpname, 2 );417 if ( tmpfilefd == -1 ) {418 perror( "CC1 Translator error: stage 2, mkstemp" );419 exit( EXIT_FAILURE );420 } // if421 cfa_cpp_out = tmpname;422 } // if423 #ifdef __DEBUG_H__424 cerr << "cfa_cpp_out: " << cfa_cpp_out << endl;425 #endif // __DEBUG_H__426 } // if427 428 // If -CFA flag specified, run the cfa-cpp preprocessor on the temporary file, and output is written to standard429 // output. Otherwise, run the cfa-cpp preprocessor on the temporary file and save the result into the output file.430 431 if ( fork() == 0 ) { // child runs CFA432 cargs[0] = ( *new string( bprefix + "cfa-cpp" ) ).c_str();433 cargs[ncargs++] = cpp_in;434 435 if ( CFA_flag ) { // run cfa-cpp ?436 if ( o_file.size() != 0 ) { // location for output437 cargs[ncargs++] = ( *new string( o_file.c_str() ) ).c_str();438 } // if439 } else {440 cargs[ncargs++] = cfa_cpp_out.c_str();441 } // if442 cargs[ncargs] = nullptr; // terminate argument list443 444 #ifdef __DEBUG_H__445 for ( int i = 0; cargs[i] != nullptr; i += 1 ) {446 cerr << cargs[i] << " ";447 } // for448 cerr << endl;449 #endif // __DEBUG_H__450 451 execvp( cargs[0], (char * const *)cargs ); // should not return452 perror( "CC1 Translator error: stage 2 cfa-cpp, execvp" );453 cerr << " invoked " << cargs[0] << endl;454 exit( EXIT_FAILURE );455 } // if456 457 wait( &code ); // wait for child to finish458 459 if ( WIFSIGNALED(code) ) { // child failed ?460 rmtmpfile(); // remove tmpname461 cerr << "CC1 Translator error: stage 2, child failed " << WTERMSIG(code) << endl;462 exit( EXIT_FAILURE );463 } // if464 465 if ( CFA_flag ) { // no tmpfile created466 exit( WEXITSTATUS( code ) ); // stop regardless of success or failure467 } // if468 469 #ifdef __DEBUG_H__470 cerr << "return code from cfa-cpp:" << WEXITSTATUS(code) << endl;471 #endif // __DEBUG_H__472 473 if ( WEXITSTATUS(code) ) { // child error ?474 rmtmpfile(); // remove tmpname475 exit( WEXITSTATUS( code ) ); // do not continue476 } // if477 478 456 #ifdef __DEBUG_H__ 479 457 cerr << "args:"; … … 481 459 cerr << " " << args[i]; 482 460 } // for 483 cerr << " " << cpp_in << endl; 484 #endif // __DEBUG_H__ 485 486 if ( fork() == 0 ) { // child runs CFA 487 args[0] = compiler_path.c_str(); 488 args[nargs++] = "-S"; // only compile and put assembler output in specified file 489 if ( save_temps ) { // make gcc accept .ifa suffix 490 args[nargs++] = "-x"; 491 args[nargs++] = "cpp-output"; 492 } // if 493 args[nargs++] = cfa_cpp_out.c_str(); 494 args[nargs] = nullptr; // terminate argument list 495 496 #ifdef __DEBUG_H__ 497 cerr << "stage2 nargs: " << nargs << endl; 498 for ( int i = 0; args[i] != nullptr; i += 1 ) { 499 cerr << args[i] << " "; 500 } // for 501 cerr << endl; 502 #endif // __DEBUG_H__ 503 504 execvp( args[0], (char * const *)args ); // should not return 505 perror( "CC1 Translator error: stage 2 cc1, execvp" ); 506 cerr << " invoked " << cargs[0] << endl; 507 exit( EXIT_FAILURE ); // tell gcc not to go any further 508 } // if 509 510 wait( &code ); // wait for child to finish 511 512 if ( WIFSIGNALED(code) ) { // child failed ? 513 rmtmpfile(); // remove tmpname 514 cerr << "CC1 Translator error: stage 2, child failed " << WTERMSIG(code) << endl; 515 exit( EXIT_FAILURE ); 516 } // if 517 518 #ifdef __DEBUG_H__ 519 cerr << "return code from gcc cc1:" << WEXITSTATUS(code) << endl; 520 #endif // __DEBUG_H__ 521 522 rmtmpfile(); // remove tmpname 523 exit( WEXITSTATUS( code ) ); // stop regardless of success or failure 461 cerr << endl; 462 if ( cpp_in != NULL ) cerr << " " << cpp_in; 463 #endif // __DEBUG_H__ 464 465 args[0] = compiler_name.c_str(); 466 args[nargs] = "-S"; // only compile and put assembler output in specified file 467 nargs += 1; 468 args[nargs] = cpp_in; 469 nargs += 1; 470 args[nargs] = NULL; // terminate argument list 471 472 #ifdef __DEBUG_H__ 473 cerr << "stage2 nargs: " << nargs << endl; 474 for ( int i = 0; args[i] != NULL; i += 1 ) { 475 cerr << args[i] << " "; 476 } // for 477 cerr << endl; 478 #endif // __DEBUG_H__ 479 480 execvp( args[0], (char * const *)args ); // should not return 481 perror( "CFA Translator error: cpp level, execvp" ); 482 exit( EXIT_FAILURE ); // tell gcc not to go any further 524 483 } // Stage2 525 484 526 485 527 // This program is called twice because of the -no-integrated-cpp. The calls are differentiated by the first528 // command-line argument. The first call replaces the traditional cpp pass to preprocess the C program. The second call529 // is to the compiler, which is broken into two steps: preprocess again with cfa-cpp and then call gcc to compile the530 // doubly preprocessed program.531 532 486 int main( const int argc, const char * const argv[], __attribute__((unused)) const char * const env[] ) { 533 487 #ifdef __DEBUG_H__ 534 for ( int i = 0; env[i] != nullptr; i += 1 ) {488 for ( int i = 0; env[i] != NULL; i += 1 ) { 535 489 cerr << env[i] << endl; 536 490 } // for 537 491 #endif // __DEBUG_H__ 538 492 539 signal( SIGINT, sigTermHandler ); 540 signal( SIGTERM, sigTermHandler ); 541 542 string arg( argv[1] ); 493 string arg = argv[1]; 543 494 544 495 // Currently, stage 1 starts with flag -E and stage 2 with flag -fpreprocessed.
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