source: src/driver/cfa.cc@ 5d88a0a

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 new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since 5d88a0a was 9d944b2, checked in by Thierry Delisle <tdelisle@…>, 9 years ago

Implemented interposing for abort and exit, implemented safer debug output
  • Property mode set to 100644
File size: 12.7 KB
Line 
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// cfa.cc --
8//
9// Author : Peter A. Buhr
10// Created On : Tue Aug 20 13:44:49 2002
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Fri Jan 20 14:38:45 2017
13// Update Count : 155
14//
15
16#include <iostream>
17#include <cstdio> // perror
18#include <cstdlib> // putenv, exit
19#include <unistd.h> // execvp
20#include <string> // STL version
21
22#include "config.h" // configure info
23
24using std::cerr;
25using std::endl;
26using std::string;
27using std::to_string;
28
29
30//#define __DEBUG_H__
31
32
33bool prefix( string arg, string pre ) {
34 return arg.substr( 0, pre.size() ) == pre;
35} // prefix
36
37
38void shuffle( const char *args[], int S, int E, int N ) {
39 // S & E index 1 passed the end so adjust with -1
40#ifdef __DEBUG_H__
41 cerr << "shuffle:" << S << " " << E << " " << N << endl;
42#endif // __DEBUG_H__
43 for ( int j = E-1 + N; j > S-1 + N; j -=1 ) {
44#ifdef __DEBUG_H__
45 cerr << "\t" << j << " " << j-N << endl;
46#endif // __DEBUG_H__
47 args[j] = args[j-N];
48 } // for
49} // shuffle
50
51
52#define str(s) #s
53
54int main( int argc, char *argv[] ) {
55 string Version( CFA_VERSION_LONG ); // current version number from CONFIG
56 string Major( str( CFA_VERSION_MAJOR ) ), Minor( str( CFA_VERSION_MINOR ) ), Patch( str( CFA_VERSION_PATCH ) );
57
58 string installincdir( CFA_INCDIR ); // fixed location of include files
59 string installlibdir( CFA_LIBDIR ); // fixed location of cc1 and cfa-cpp commands
60
61 string heading; // banner printed at start of cfa compilation
62 string arg; // current command-line argument during command-line parsing
63 string Bprefix; // path where gcc looks for compiler command steps
64 string langstd; // language standard
65
66 string compiler_path( CFA_BACKEND_CC ); // path/name of C compiler
67 string compiler_name; // name of C compiler
68
69 bool nonoptarg = false; // indicates non-option argument specified
70 bool link = true; // linking as well as compiling
71 bool verbose = false; // -v flag
72 bool quiet = false; // -quiet flag
73 bool debug = true; // -debug flag
74 bool help = false; // -help flag
75 bool CFA_flag = false; // -CFA flag
76 bool cpp_flag = false; // -E or -M flag, preprocessor only
77 bool std_flag = false; // -std= flag
78 bool noincstd_flag = false; // -no-include-stdhdr= flag
79 bool debugging __attribute(( unused )) = false; // -g flag
80
81 const char *args[argc + 100]; // cfa command line values, plus some space for additional flags
82 int sargs = 1; // starting location for arguments in args list
83 int nargs = sargs; // number of arguments in args list; 0 => command name
84
85 const char *libs[argc + 20]; // non-user libraries must come separately, plus some added libraries and flags
86 int nlibs = 0;
87
88#ifdef __DEBUG_H__
89 cerr << "CFA:" << endl;
90#endif // __DEBUG_H__
91
92 // process command-line arguments
93
94 for ( int i = 1; i < argc; i += 1 ) {
95#ifdef __DEBUG_H__
96 cerr << "argv[" << i << "]:\"" << argv[i] << "\"" << endl;
97#endif // __DEBUG_H__
98 arg = argv[i]; // convert to string value
99#ifdef __DEBUG_H__
100 cerr << "arg:\"" << arg << "\"" << endl;
101#endif // __DEBUG_H__
102 if ( prefix( arg, "-" ) ) {
103 // pass through arguments
104
105 if ( arg == "-Xlinker" || arg == "-o" ) {
106 args[nargs] = argv[i]; // pass the argument along
107 nargs += 1;
108 i += 1;
109 if ( i == argc ) continue; // next argument available ?
110 args[nargs] = argv[i]; // pass the argument along
111 nargs += 1;
112 } else if ( arg == "-XCFA" ) { // CFA pass through
113 i += 1;
114 args[nargs] = ( *new string( string("-D__CFA_FLAG__=") + argv[i] ) ).c_str();
115 nargs += 1;
116
117 // CFA specific arguments
118
119 } else if ( arg == "-CFA" ) {
120 CFA_flag = true; // strip the -CFA flag
121 link = false;
122 args[nargs] = "-E"; // replace the argument with -E
123 nargs += 1;
124 } else if ( arg == "-debug" ) {
125 debug = true; // strip the debug flag
126 } else if ( arg == "-nodebug" ) {
127 debug = false; // strip the nodebug flag
128 } else if ( arg == "-quiet" ) {
129 quiet = true; // strip the quiet flag
130 } else if ( arg == "-noquiet" ) {
131 quiet = false; // strip the noquiet flag
132 } else if ( arg == "-help" ) {
133 help = true; // strip the help flag
134 } else if ( arg == "-nohelp" ) {
135 help = false; // strip the nohelp flag
136 } else if ( arg == "-no-include-stdhdr" ) {
137 noincstd_flag = true; // strip the no-include-stdhdr flag
138 } else if ( arg == "-compiler" ) {
139 // use the user specified compiler
140 i += 1;
141 if ( i == argc ) continue; // next argument available ?
142 compiler_path = argv[i];
143 if ( putenv( (char *)( *new string( string( "__U_COMPILER__=" ) + argv[i]) ).c_str() ) != 0 ) {
144 cerr << argv[0] << " error, cannot set environment variable." << endl;
145 exit( EXIT_FAILURE );
146 } // if
147
148 // C specific arguments
149
150 } else if ( arg == "-v" ) {
151 verbose = true; // verbosity required
152 args[nargs] = argv[i]; // pass the argument along
153 nargs += 1;
154 } else if ( arg == "-g" ) {
155 debugging = true; // symbolic debugging required
156 args[nargs] = argv[i]; // pass the argument along
157 nargs += 1;
158 } else if ( prefix( arg, "-std=" ) ) {
159 std_flag = true; // -std=XX provided
160 args[nargs] = argv[i]; // pass the argument along
161 nargs += 1;
162 } else if ( prefix( arg, "-B" ) ) {
163 Bprefix = arg.substr(2); // strip the -B flag
164 args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
165 nargs += 1;
166 } else if ( prefix( arg, "-b" ) ) {
167 if ( arg.length() == 2 ) { // separate argument ?
168 i += 1;
169 if ( i == argc ) continue; // next argument available ?
170 arg += argv[i]; // concatenate argument
171 } // if
172 // later versions of gcc require the -b option to appear at the start of the command line
173 shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
174 args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
175 if ( putenv( (char *)( *new string( string( "__GCC_MACHINE__=" ) + arg ) ).c_str() ) != 0 ) {
176 cerr << argv[0] << " error, cannot set environment variable." << endl;
177 exit( EXIT_FAILURE );
178 } // if
179 sargs += 1;
180 nargs += 1;
181 } else if ( prefix( arg, "-V" ) ) {
182 if ( arg.length() == 2 ) { // separate argument ?
183 i += 1;
184 if ( i == argc ) continue; // next argument available ?
185 arg += argv[i]; // concatenate argument
186 } // if
187 // later versions of gcc require the -V option to appear at the start of the command line
188 shuffle( args, sargs, nargs, 1 ); // make room at front of argument list
189 args[sargs] = ( *new string( arg ) ).c_str(); // pass the argument along
190 if ( putenv( (char *)( *new string( string( "__GCC_VERSION__=" ) + arg ) ).c_str() ) != 0 ) {
191 cerr << argv[0] << " error, cannot set environment variable." << endl;
192 exit( EXIT_FAILURE );
193 } // if
194 sargs += 1;
195 nargs += 1;
196 } else if ( arg == "-c" || arg == "-S" || arg == "-E" || arg == "-M" || arg == "-MM" ) {
197 args[nargs] = argv[i]; // pass the argument along
198 nargs += 1;
199 if ( arg == "-E" || arg == "-M" || arg == "-MM" ) {
200 cpp_flag = true; // cpp only
201 } // if
202 link = false; // no linkage required
203 } else if ( arg[1] == 'l' ) {
204 // if the user specifies a library, load it after user code
205 libs[nlibs] = argv[i];
206 nlibs += 1;
207 } else {
208 // concatenate any other arguments
209 args[nargs] = argv[i];
210 nargs += 1;
211 } // if
212 } else {
213 // concatenate other arguments
214 args[nargs] = argv[i];
215 nargs += 1;
216 nonoptarg = true;
217 } // if
218 } // for
219
220#ifdef __DEBUG_H__
221 cerr << "args:";
222 for ( int i = 1; i < nargs; i += 1 ) {
223 cerr << " " << args[i];
224 } // for
225 cerr << endl;
226#endif // __DEBUG_H__
227
228 if ( cpp_flag && CFA_flag ) {
229 cerr << argv[0] << " error, cannot use -E and -CFA flags together." << endl;
230 exit( EXIT_FAILURE );
231 } // if
232
233 // add the CFA include-library paths, which allow direct access to header files without directory qualification
234 args[nargs] = "-I" CFA_INCDIR;
235 nargs += 1;
236 if ( ! noincstd_flag ) { // do not use during build
237 args[nargs] = "-I" CFA_INCDIR "/stdhdr";
238 nargs += 1;
239 } // if
240 args[nargs] = "-I" CFA_INCDIR "/concurrency";
241 nargs += 1;
242 args[nargs] = "-I" CFA_INCDIR "/containers";
243 nargs += 1;
244
245#ifdef HAVE_LIBCFA
246 if ( link ) {
247 #if ! defined(HAVE_LIBCFA_RELEASE)
248 if( !debug ) {
249 cerr << "error: Option -nodebug is not available, libcfa was not installed." << endl;
250 exit( EXIT_FAILURE );
251 }
252 #endif
253 #if ! defined(HAVE_LIBCFA_DEBUG)
254 if( debug ) {
255 cerr << "error: Option -debug is not available, libcfa-d was not installed." << endl;
256 exit( EXIT_FAILURE );
257 }
258 #endif
259
260 // include the cfa library in case it's needed
261 args[nargs] = "-L" CFA_LIBDIR;
262 nargs += 1;
263 if( debug ) {
264 args[nargs] = "-lcfa-d";
265 } else {
266 args[nargs] = "-lcfa";
267 }
268 nargs += 1;
269 args[nargs] = "-lpthread";
270 nargs += 1;
271 args[nargs] = "-ldl";
272 nargs += 1;
273 args[nargs] = "-Xlinker";
274 nargs += 1;
275 args[nargs] = "--undefined=__lib_debug_write";
276 nargs += 1;
277
278 } // if
279#endif //HAVE_LIBCFA
280
281 // add the correct set of flags based on the type of compile this is
282
283 args[nargs] = ( *new string( string("-D__CFA_MAJOR__=") + Major ) ).c_str();
284 nargs += 1;
285 args[nargs] = ( *new string( string("-D__CFA_MINOR__=") + Minor ) ).c_str();
286 nargs += 1;
287 args[nargs] = ( *new string( string("-D__CFA_PATCH__=") + Patch ) ).c_str();
288 nargs += 1;
289 args[nargs] = "-D__CFA__";
290 nargs += 1;
291 args[nargs] = "-D__CFORALL__";
292 nargs += 1;
293 args[nargs] = "-D__cforall";
294 nargs += 1;
295
296 if ( cpp_flag ) {
297 args[nargs] = "-D__CPP__";
298 nargs += 1;
299 } // if
300
301 if ( CFA_flag ) {
302 args[nargs] = "-D__CFA_PREPROCESS_";
303 nargs += 1;
304 } // if
305
306 if ( debug ) {
307 heading += " (debug)";
308 args[nargs] = "-D__CFA_DEBUG__";
309 nargs += 1;
310 } else {
311 heading += " (no debug)";
312 } // if
313
314 if ( Bprefix.length() == 0 ) {
315 Bprefix = installlibdir;
316 args[nargs] = ( *new string( string("-D__GCC_BPREFIX__=") + Bprefix ) ).c_str();
317 nargs += 1;
318 } // if
319
320 // execute the compilation command
321
322 args[0] = compiler_path.c_str(); // set compiler command for exec
323 // find actual name of the compiler independent of the path to it
324 int p = compiler_path.find_last_of( '/' ); // scan r -> l for first '/'
325 if ( p == -1 ) {
326 compiler_name = compiler_path;
327 } else {
328 compiler_name = *new string( compiler_path.substr( p + 1 ) );
329 } // if
330
331 if ( prefix( compiler_name, "gcc" ) ) { // allow suffix on gcc name
332 args[nargs] = "-no-integrated-cpp";
333 nargs += 1;
334 args[nargs] = "-Wno-deprecated";
335 nargs += 1;
336 if ( ! std_flag ) { // default c99, if none specified
337 args[nargs] = "-std=gnu99";
338 nargs += 1;
339 } // if
340 args[nargs] = "-fgnu89-inline";
341 nargs += 1;
342 args[nargs] = ( *new string( string("-B") + Bprefix + "/" ) ).c_str();
343 nargs += 1;
344 args[nargs] = "-lm";
345 nargs += 1;
346 } else {
347 cerr << argv[0] << " error, compiler \"" << compiler_name << "\" unsupported." << endl;
348 exit( EXIT_FAILURE );
349 } // if
350
351 for ( int i = 0; i < nlibs; i += 1 ) { // copy non-user libraries after all user libraries
352 args[nargs] = libs[i];
353 nargs += 1;
354 } // for
355
356 args[nargs] = NULL; // terminate with NULL
357
358#ifdef __DEBUG_H__
359 cerr << "nargs: " << nargs << endl;
360 cerr << "args:" << endl;
361 for ( int i = 0; args[i] != NULL; i += 1 ) {
362 cerr << " \"" << args[i] << "\"" << endl;
363 } // for
364#endif // __DEBUG_H__
365
366 if ( ! quiet ) {
367 cerr << "CFA " << "Version " << Version << heading << endl;
368
369 if ( help ) {
370 cerr <<
371 "-debug\t\t\t: use cfa runtime with debug checking" << endl <<
372 "-help\t\t\t: print this help message" << endl <<
373 "-quiet\t\t\t: print no messages from the cfa command" << endl <<
374 "-CFA\t\t\t: run the cpp preprocessor and the cfa-cpp translator" << endl <<
375 "-XCFA -cfa-cpp-flag\t: pass next flag as-is to the cfa-cpp translator" << endl <<
376 "...\t\t\t: any other " << compiler_name << " flags" << endl;
377 } // if
378 } // if
379
380 if ( verbose ) {
381 if ( argc == 2 ) exit( EXIT_SUCCESS ); // if only the -v flag is specified, do not invoke gcc
382
383 for ( int i = 0; args[i] != NULL; i += 1 ) {
384 cerr << args[i] << " ";
385 } // for
386 cerr << endl;
387 } // if
388
389 if ( ! nonoptarg ) {
390 cerr << argv[0] << " error, no input files" << endl;
391 exit( EXIT_FAILURE );
392 } // if
393
394 // execute the command and return the result
395
396 execvp( args[0], (char *const *)args ); // should not return
397 perror( "CFA Translator error: cfa level, execvp" );
398 exit( EXIT_FAILURE );
399} // main
400
401// Local Variables: //
402// tab-width: 4 //
403// mode: c++ //
404// compile-command: "make install" //
405// End: //
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