| 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 | //
|
|---|
| 7 | // cc1.cc --
|
|---|
| 8 | //
|
|---|
| 9 | // Author : Peter A. Buhr
|
|---|
| 10 | // Created On : Fri Aug 26 14:23:51 2005
|
|---|
| 11 | // Last Modified By : Peter A. Buhr
|
|---|
| 12 | // Last Modified On : Mon Sep 3 16:57:05 2018
|
|---|
| 13 | // Update Count : 125
|
|---|
| 14 | //
|
|---|
| 15 |
|
|---|
| 16 | #include <iostream>
|
|---|
| 17 | using std::cerr;
|
|---|
| 18 | using std::endl;
|
|---|
| 19 | #include <string>
|
|---|
| 20 | using std::string;
|
|---|
| 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
|
|---|
| 25 |
|
|---|
| 26 | #include "config.h" // configure info
|
|---|
| 27 |
|
|---|
| 28 |
|
|---|
| 29 | //#define __DEBUG_H__
|
|---|
| 30 |
|
|---|
| 31 |
|
|---|
| 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 ) {
|
|---|
| 42 | return arg.substr( 0, pre.size() ) == pre;
|
|---|
| 43 | } // prefix
|
|---|
| 44 |
|
|---|
| 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 | size_t dot = arg.find_last_of( "." );
|
|---|
| 51 | //std::cerr << dot << " " << (dot != string::npos ? arg.substr( dot + 1 ) : "fred" ) << std::endl;
|
|---|
| 52 | if ( dot == string::npos ) return;
|
|---|
| 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
|
|---|
| 63 | } // suffix
|
|---|
| 64 |
|
|---|
| 65 |
|
|---|
| 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;
|
|---|
| 72 | #ifdef __DEBUG_H__
|
|---|
| 73 | cerr << "env arg:\"" << compiler_name << "\"" << endl;
|
|---|
| 74 | #endif // __DEBUG_H__
|
|---|
| 75 | } // if
|
|---|
| 76 |
|
|---|
| 77 | value = getenv( "__GCC_MACHINE__" );
|
|---|
| 78 | if ( value != NULL ) {
|
|---|
| 79 | args[nargs] = ( *new string( value ) ).c_str(); // pass the argument along
|
|---|
| 80 | #ifdef __DEBUG_H__
|
|---|
| 81 | cerr << "env arg:\"" << args[nargs] << "\"" << endl;
|
|---|
| 82 | #endif // __DEBUG_H__
|
|---|
| 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() {
|
|---|
| 98 | if ( unlink( tmpname ) == -1 ) { // remove tmpname
|
|---|
| 99 | perror ( "CFA Translator error: cpp failed" );
|
|---|
| 100 | exit( EXIT_FAILURE );
|
|---|
| 101 | } // if
|
|---|
| 102 | tmpfilefd = -1; // mark closed
|
|---|
| 103 | } // rmtmpfile
|
|---|
| 104 |
|
|---|
| 105 |
|
|---|
| 106 | void sigTermHandler( __attribute__((unused)) int signal ) {
|
|---|
| 107 | if ( tmpfilefd != -1 ) { // RACE, file created ?
|
|---|
| 108 | rmtmpfile(); // remove
|
|---|
| 109 | exit( EXIT_FAILURE ); // terminate
|
|---|
| 110 | } // if
|
|---|
| 111 | } // sigTermHandler
|
|---|
| 112 |
|
|---|
| 113 |
|
|---|
| 114 | void Stage1( const int argc, const char * const argv[] ) {
|
|---|
| 115 | int code;
|
|---|
| 116 |
|
|---|
| 117 | string arg;
|
|---|
| 118 | string bprefix;
|
|---|
| 119 |
|
|---|
| 120 | const char *cpp_in = NULL;
|
|---|
| 121 | const char *cpp_out = NULL;
|
|---|
| 122 |
|
|---|
| 123 | bool CFA_flag = false;
|
|---|
| 124 | bool cpp_flag = false;
|
|---|
| 125 | const char *o_name = NULL;
|
|---|
| 126 |
|
|---|
| 127 | const char *args[argc + 100]; // leave space for 100 additional cpp command line values
|
|---|
| 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 );
|
|---|
| 134 |
|
|---|
| 135 | #ifdef __DEBUG_H__
|
|---|
| 136 | cerr << "Stage1" << endl;
|
|---|
| 137 | #endif // __DEBUG_H__
|
|---|
| 138 | checkEnv( args, nargs ); // arguments passed via environment variables
|
|---|
| 139 | #ifdef __DEBUG_H__
|
|---|
| 140 | for ( int i = 1; i < argc; i += 1 ) {
|
|---|
| 141 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
|
|---|
| 142 | } // for
|
|---|
| 143 | #endif // __DEBUG_H__
|
|---|
| 144 |
|
|---|
| 145 | // process all the arguments
|
|---|
| 146 |
|
|---|
| 147 | for ( int i = 1; i < argc; i += 1 ) {
|
|---|
| 148 | arg = argv[i];
|
|---|
| 149 | if ( prefix( arg, "-" ) ) {
|
|---|
| 150 | // strip g++ flags that are inappropriate or cause duplicates in subsequent passes
|
|---|
| 151 |
|
|---|
| 152 | if ( arg == "-quiet" ) {
|
|---|
| 153 | } else if ( arg == "-imultilib" || arg == "-imultiarch" ) {
|
|---|
| 154 | i += 1; // and the argument
|
|---|
| 155 | } else if ( prefix( arg, "-A" ) ) {
|
|---|
| 156 | } else if ( prefix( arg, "-D__GNU" ) ) {
|
|---|
| 157 | //********
|
|---|
| 158 | // GCC 5.6.0 SEPARATED THE -D FROM THE ARGUMENT!
|
|---|
| 159 | //********
|
|---|
| 160 | } else if ( arg == "-D" && prefix( argv[i + 1], "__GNU" ) ) {
|
|---|
| 161 | i += 1; // and the argument
|
|---|
| 162 |
|
|---|
| 163 | // strip flags controlling cpp step
|
|---|
| 164 |
|
|---|
| 165 | } else if ( arg == "-D__CPP__" ) {
|
|---|
| 166 | cpp_flag = true;
|
|---|
| 167 | } else if ( arg == "-D" && string( argv[i + 1] ) == "__CPP__" ) {
|
|---|
| 168 | i += 1; // and the argument
|
|---|
| 169 | cpp_flag = true;
|
|---|
| 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
|
|---|
| 189 |
|
|---|
| 190 | } else if ( arg == "-o" ) {
|
|---|
| 191 | i += 1;
|
|---|
| 192 | o_name = argv[i];
|
|---|
| 193 | } else {
|
|---|
| 194 | args[nargs] = argv[i]; // pass the flag along
|
|---|
| 195 | nargs += 1;
|
|---|
| 196 | // CPP flags with an argument
|
|---|
| 197 | if ( arg == "-D" || arg == "-U" || arg == "-I" || arg == "-MF" || arg == "-MT" || arg == "-MQ" ||
|
|---|
| 198 | arg == "-include" || arg == "-imacros" || arg == "-idirafter" || arg == "-iprefix" ||
|
|---|
| 199 | arg == "-iwithprefix" || arg == "-iwithprefixbefore" || arg == "-isystem" || arg == "-isysroot" ) {
|
|---|
| 200 | i += 1;
|
|---|
| 201 | args[nargs] = argv[i]; // pass the argument along
|
|---|
| 202 | nargs += 1;
|
|---|
| 203 | #ifdef __DEBUG_H__
|
|---|
| 204 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
|
|---|
| 205 | #endif // __DEBUG_H__
|
|---|
| 206 | } else if ( arg == "-MD" || arg == "-MMD" ) {
|
|---|
| 207 | args[nargs] = "-MF"; // insert before file
|
|---|
| 208 | nargs += 1;
|
|---|
| 209 | i += 1;
|
|---|
| 210 | args[nargs] = argv[i]; // pass the argument along
|
|---|
| 211 | nargs += 1;
|
|---|
| 212 | #ifdef __DEBUG_H__
|
|---|
| 213 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
|
|---|
| 214 | #endif // __DEBUG_H__
|
|---|
| 215 | } // if
|
|---|
| 216 | } // if
|
|---|
| 217 | } else { // obtain input and possibly output files
|
|---|
| 218 | if ( cpp_in == NULL ) {
|
|---|
| 219 | cpp_in = argv[i];
|
|---|
| 220 | #ifdef __DEBUG_H__
|
|---|
| 221 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl;
|
|---|
| 222 | #endif // __DEBUG_H__
|
|---|
| 223 | } else if ( cpp_out == NULL ) {
|
|---|
| 224 | cpp_out = argv[i];
|
|---|
| 225 | #ifdef __DEBUG_H__
|
|---|
| 226 | cerr << "cpp_out:\"" << cpp_out << "\""<< endl;
|
|---|
| 227 | #endif // __DEBUG_H__
|
|---|
| 228 | } else {
|
|---|
| 229 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
|
|---|
| 230 | exit( EXIT_FAILURE );
|
|---|
| 231 | } // if
|
|---|
| 232 | } // if
|
|---|
| 233 | } // for
|
|---|
| 234 |
|
|---|
| 235 | #ifdef __DEBUG_H__
|
|---|
| 236 | cerr << "args:";
|
|---|
| 237 | for ( int i = 1; i < nargs; i += 1 ) {
|
|---|
| 238 | cerr << " " << args[i];
|
|---|
| 239 | } // for
|
|---|
| 240 | if ( cpp_in != NULL ) cerr << " " << cpp_in;
|
|---|
| 241 | if ( cpp_out != NULL ) cerr << " " << cpp_out;
|
|---|
| 242 | cerr << endl;
|
|---|
| 243 | #endif // __DEBUG_H__
|
|---|
| 244 |
|
|---|
| 245 | if ( cpp_in == NULL ) {
|
|---|
| 246 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
|
|---|
| 247 | exit( EXIT_FAILURE );
|
|---|
| 248 | } // if
|
|---|
| 249 |
|
|---|
| 250 | if ( cpp_flag ) {
|
|---|
| 251 | // The -E flag is specified on the cfa command so only run the preprocessor and output is written to standard
|
|---|
| 252 | // output or -o. The call to cfa has a -E so it does not have to be added to the argument list.
|
|---|
| 253 |
|
|---|
| 254 | args[0] = compiler_name.c_str();
|
|---|
| 255 | suffix( cpp_in, args, nargs ); // check suffix
|
|---|
| 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;
|
|---|
| 263 | } // if
|
|---|
| 264 | args[nargs] = NULL; // terminate argument list
|
|---|
| 265 |
|
|---|
| 266 | #ifdef __DEBUG_H__
|
|---|
| 267 | cerr << "nargs: " << nargs << endl;
|
|---|
| 268 | for ( int i = 0; args[i] != NULL; i += 1 ) {
|
|---|
| 269 | cerr << args[i] << " ";
|
|---|
| 270 | } // for
|
|---|
| 271 | cerr << endl;
|
|---|
| 272 | #endif // __DEBUG_H__
|
|---|
| 273 |
|
|---|
| 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.
|
|---|
| 292 |
|
|---|
| 293 | if ( fork() == 0 ) { // child process ?
|
|---|
| 294 | // -o xxx.ii cannot be used to write the output file from cpp because no output file is created if cpp detects
|
|---|
| 295 | // an error (e.g., cannot find include file). Whereas, output is always generated, even when there is an error,
|
|---|
| 296 | // when cpp writes to stdout. Hence, stdout is redirected into the temporary file.
|
|---|
| 297 | if ( freopen( tmpname, "w", stdout ) == NULL ) { // redirect stdout to tmpname
|
|---|
| 298 | perror( "CFA Translator error: cpp level, freopen" );
|
|---|
| 299 | exit( EXIT_FAILURE );
|
|---|
| 300 | } // if
|
|---|
| 301 |
|
|---|
| 302 | args[0] = compiler_name.c_str();
|
|---|
| 303 | suffix( cpp_in, args, nargs ); // check suffix
|
|---|
| 304 | args[nargs] = cpp_in; // input to cpp
|
|---|
| 305 | nargs += 1;
|
|---|
| 306 | args[nargs] = NULL; // terminate argument list
|
|---|
| 307 |
|
|---|
| 308 | #ifdef __DEBUG_H__
|
|---|
| 309 | cerr << "cpp nargs: " << nargs << endl;
|
|---|
| 310 | for ( int i = 0; args[i] != NULL; i += 1 ) {
|
|---|
| 311 | cerr << args[i] << " ";
|
|---|
| 312 | } // for
|
|---|
| 313 | cerr << endl;
|
|---|
| 314 | #endif // __DEBUG_H__
|
|---|
| 315 |
|
|---|
| 316 | execvp( args[0], (char *const *)args ); // should not return
|
|---|
| 317 | perror( "CFA Translator error: cpp level, execvp" );
|
|---|
| 318 | exit( EXIT_FAILURE );
|
|---|
| 319 | } // if
|
|---|
| 320 |
|
|---|
| 321 | wait( &code ); // wait for child to finish
|
|---|
| 322 |
|
|---|
| 323 | #ifdef __DEBUG_H__
|
|---|
| 324 | cerr << "return code from cpp:" << WEXITSTATUS(code) << endl;
|
|---|
| 325 | #endif // __DEBUG_H__
|
|---|
| 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 << " " << 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 |
|
|---|
| 383 | if ( WIFSIGNALED(code) ) { // child failed ?
|
|---|
| 384 | cerr << "CFA Translator error: cfa-cpp failed with signal " << WTERMSIG(code) << endl;
|
|---|
| 385 | exit( EXIT_FAILURE );
|
|---|
| 386 | } // if
|
|---|
| 387 |
|
|---|
| 388 | exit( WEXITSTATUS(code) );
|
|---|
| 389 | } // Stage1
|
|---|
| 390 |
|
|---|
| 391 |
|
|---|
| 392 | void Stage2( const int argc, const char * const * argv ) {
|
|---|
| 393 | string arg;
|
|---|
| 394 |
|
|---|
| 395 | const char *cpp_in = NULL;
|
|---|
| 396 |
|
|---|
| 397 | const char *args[argc + 100]; // leave space for 100 additional cfa command line values
|
|---|
| 398 | int nargs = 1; // number of arguments in args list; 0 => command name
|
|---|
| 399 |
|
|---|
| 400 | #ifdef __DEBUG_H__
|
|---|
| 401 | cerr << "Stage2" << endl;
|
|---|
| 402 | #endif // __DEBUG_H__
|
|---|
| 403 | checkEnv( args, nargs ); // arguments passed via environment variables
|
|---|
| 404 | #ifdef __DEBUG_H__
|
|---|
| 405 | for ( int i = 1; i < argc; i += 1 ) {
|
|---|
| 406 | cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
|
|---|
| 407 | } // for
|
|---|
| 408 | #endif // __DEBUG_H__
|
|---|
| 409 |
|
|---|
| 410 | // process all the arguments
|
|---|
| 411 |
|
|---|
| 412 | for ( int i = 1; i < argc; i += 1 ) {
|
|---|
| 413 | arg = argv[i];
|
|---|
| 414 | if ( prefix( arg, "-" ) ) {
|
|---|
| 415 | // strip inappropriate flags
|
|---|
| 416 |
|
|---|
| 417 | if ( arg == "-quiet" || arg == "-version" || arg == "-fpreprocessed" ||
|
|---|
| 418 | // Currently CFA does not suppose precompiled .h files.
|
|---|
| 419 | prefix( arg, "--output-pch" ) ) {
|
|---|
| 420 |
|
|---|
| 421 | // strip inappropriate flags with an argument
|
|---|
| 422 |
|
|---|
| 423 | } else if ( arg == "-auxbase" || arg == "-auxbase-strip" || arg == "-dumpbase" ) {
|
|---|
| 424 | i += 1;
|
|---|
| 425 | #ifdef __DEBUG_H__
|
|---|
| 426 | cerr << "arg:\"" << argv[i] << "\"" << endl;
|
|---|
| 427 | #endif // __DEBUG_H__
|
|---|
| 428 |
|
|---|
| 429 | // all other flags
|
|---|
| 430 |
|
|---|
| 431 | } else {
|
|---|
| 432 | args[nargs] = argv[i]; // pass the flag along
|
|---|
| 433 | nargs += 1;
|
|---|
| 434 | if ( arg == "-o" ) {
|
|---|
| 435 | i += 1;
|
|---|
| 436 | args[nargs] = argv[i]; // pass the argument along
|
|---|
| 437 | nargs += 1;
|
|---|
| 438 | #ifdef __DEBUG_H__
|
|---|
| 439 | cerr << "arg:\"" << argv[i] << "\"" << endl;
|
|---|
| 440 | #endif // __DEBUG_H__
|
|---|
| 441 | } // if
|
|---|
| 442 | } // if
|
|---|
| 443 | } else { // obtain input and possibly output files
|
|---|
| 444 | if ( cpp_in == NULL ) {
|
|---|
| 445 | cpp_in = argv[i];
|
|---|
| 446 | #ifdef __DEBUG_H__
|
|---|
| 447 | cerr << "cpp_in:\"" << cpp_in << "\"" << endl;
|
|---|
| 448 | #endif // __DEBUG_H__
|
|---|
| 449 | } else {
|
|---|
| 450 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
|
|---|
| 451 | exit( EXIT_FAILURE );
|
|---|
| 452 | } // if
|
|---|
| 453 | } // if
|
|---|
| 454 | } // for
|
|---|
| 455 |
|
|---|
| 456 | #ifdef __DEBUG_H__
|
|---|
| 457 | cerr << "args:";
|
|---|
| 458 | for ( int i = 1; i < nargs; i += 1 ) {
|
|---|
| 459 | cerr << " " << args[i];
|
|---|
| 460 | } // for
|
|---|
| 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
|
|---|
| 483 | } // Stage2
|
|---|
| 484 |
|
|---|
| 485 |
|
|---|
| 486 | int main( const int argc, const char * const argv[], __attribute__((unused)) const char * const env[] ) {
|
|---|
| 487 | #ifdef __DEBUG_H__
|
|---|
| 488 | for ( int i = 0; env[i] != NULL; i += 1 ) {
|
|---|
| 489 | cerr << env[i] << endl;
|
|---|
| 490 | } // for
|
|---|
| 491 | #endif // __DEBUG_H__
|
|---|
| 492 |
|
|---|
| 493 | string arg = argv[1];
|
|---|
| 494 |
|
|---|
| 495 | // Currently, stage 1 starts with flag -E and stage 2 with flag -fpreprocessed.
|
|---|
| 496 |
|
|---|
| 497 | if ( arg == "-E" ) {
|
|---|
| 498 | Stage1( argc, argv );
|
|---|
| 499 | } else if ( arg == "-fpreprocessed" ) {
|
|---|
| 500 | Stage2( argc, argv );
|
|---|
| 501 | } else {
|
|---|
| 502 | cerr << "Usage: " << argv[0] << " input-file [output-file] [options]" << endl;
|
|---|
| 503 | exit( EXIT_FAILURE );
|
|---|
| 504 | } // if
|
|---|
| 505 | } // main
|
|---|
| 506 |
|
|---|
| 507 | // Local Variables: //
|
|---|
| 508 | // tab-width: 4 //
|
|---|
| 509 | // mode: c++ //
|
|---|
| 510 | // compile-command: "make install" //
|
|---|
| 511 | // End: //
|
|---|
