main.cpp revision 5976:2b8e28fdf503
1/*
2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25// MAIN.CPP - Entry point for the Architecture Description Language Compiler
26#include "adlc.hpp"
27
28//------------------------------Prototypes-------------------------------------
29static void  usage(ArchDesc& AD);          // Print usage message and exit
30static char *strip_ext(char *fname);       // Strip off name extension
31static char *base_plus_suffix(const char* base, const char *suffix);// New concatenated string
32static char *prefix_plus_base_plus_suffix(const char* prefix, const char* base, const char *suffix);// New concatenated string
33static int get_legal_text(FileBuff &fbuf, char **legal_text); // Get pointer to legal text
34
35ArchDesc* globalAD = NULL;      // global reference to Architecture Description object
36
37const char* get_basename(const char* filename) {
38  const char *basename = filename;
39  const char *cp;
40  for (cp = basename; *cp; cp++) {
41    if (*cp == '/') {
42      basename = cp+1;
43    }
44  }
45  return basename;
46}
47
48//------------------------------main-------------------------------------------
49int main(int argc, char *argv[])
50{
51  ArchDesc      AD;             // Architecture Description object
52  globalAD = &AD;
53
54  // ResourceMark  mark;
55  ADLParser    *ADL_Parse;      // ADL Parser object to parse AD file
56
57  // Check for proper arguments
58  if( argc == 1 ) usage(AD);    // No arguments?  Then print usage
59
60  // Read command line arguments and file names
61  for( int i = 1; i < argc; i++ ) { // For all arguments
62    register char *s = argv[i]; // Get option/filename
63
64    if( *s++ == '-' ) {         // It's a flag? (not a filename)
65      if( !*s ) {               // Stand-alone `-' means stdin
66        //********** INSERT CODE HERE **********
67      } else while (*s != '\0') { // While have flags on option
68        switch (*s++) {         // Handle flag
69        case 'd':               // Debug flag
70          AD._dfa_debug += 1;   // Set Debug Flag
71          break;
72        case 'g':               // Debug ad location flag
73          AD._adlocation_debug += 1;       // Set Debug ad location Flag
74          break;
75        case 'o':               // No Output Flag
76          AD._no_output ^= 1;   // Toggle no_output flag
77          break;
78        case 'q':               // Quiet Mode Flag
79          AD._quiet_mode ^= 1;  // Toggle quiet_mode flag
80          break;
81        case 'w':               // Disable Warnings Flag
82          AD._disable_warnings ^= 1; // Toggle disable_warnings flag
83          break;
84        case 'T':               // Option to make DFA as many subroutine calls.
85          AD._dfa_small += 1;   // Set Mode Flag
86          break;
87        case 'c': {             // Set C++ Output file name
88          AD._CPP_file._name = s;
89          const char *base = strip_ext(strdup(s));
90          AD._CPP_CLONE_file._name    = base_plus_suffix(base,"_clone.cpp");
91          AD._CPP_EXPAND_file._name   = base_plus_suffix(base,"_expand.cpp");
92          AD._CPP_FORMAT_file._name   = base_plus_suffix(base,"_format.cpp");
93          AD._CPP_GEN_file._name      = base_plus_suffix(base,"_gen.cpp");
94          AD._CPP_MISC_file._name     = base_plus_suffix(base,"_misc.cpp");
95          AD._CPP_PEEPHOLE_file._name = base_plus_suffix(base,"_peephole.cpp");
96          AD._CPP_PIPELINE_file._name = base_plus_suffix(base,"_pipeline.cpp");
97          s += strlen(s);
98          break;
99        }
100        case 'h':               // Set C++ Output file name
101          AD._HPP_file._name = s; s += strlen(s);
102          break;
103        case 'v':               // Set C++ Output file name
104          AD._VM_file._name = s; s += strlen(s);
105          break;
106        case 'a':               // Set C++ Output file name
107          AD._DFA_file._name = s;
108          AD._bug_file._name = s;
109          s += strlen(s);
110          break;
111        case '#':               // Special internal debug flag
112          AD._adl_debug++;      // Increment internal debug level
113          break;
114        case 's':               // Output which instructions are cisc-spillable
115          AD._cisc_spill_debug = true;
116          break;
117        case 'D':               // Flag Definition
118          {
119            char* flag = s;
120            s += strlen(s);
121            char* def = strchr(flag, '=');
122            if (def == NULL)  def = (char*)"1";
123            else              *def++ = '\0';
124            AD.set_preproc_def(flag, def);
125          }
126          break;
127        case 'U':               // Flag Un-Definition
128          {
129            char* flag = s;
130            s += strlen(s);
131            AD.set_preproc_def(flag, NULL);
132          }
133          break;
134        default:                // Unknown option
135          usage(AD);            // So print usage and exit
136        }                       // End of switch on options...
137      }                         // End of while have options...
138
139    } else {                    // Not an option; must be a filename
140      AD._ADL_file._name = argv[i]; // Set the input filename
141
142      // // Files for storage, based on input file name
143      const char *base = strip_ext(strdup(argv[i]));
144      char       *temp = base_plus_suffix("dfa_",base);
145      AD._DFA_file._name = base_plus_suffix(temp,".cpp");
146      delete temp;
147      temp = base_plus_suffix("ad_",base);
148      AD._CPP_file._name          = base_plus_suffix(temp,".cpp");
149      AD._CPP_CLONE_file._name    = base_plus_suffix(temp,"_clone.cpp");
150      AD._CPP_EXPAND_file._name   = base_plus_suffix(temp,"_expand.cpp");
151      AD._CPP_FORMAT_file._name   = base_plus_suffix(temp,"_format.cpp");
152      AD._CPP_GEN_file._name      = base_plus_suffix(temp,"_gen.cpp");
153      AD._CPP_MISC_file._name     = base_plus_suffix(temp,"_misc.cpp");
154      AD._CPP_PEEPHOLE_file._name = base_plus_suffix(temp,"_peephole.cpp");
155      AD._CPP_PIPELINE_file._name = base_plus_suffix(temp,"_pipeline.cpp");
156      AD._HPP_file._name = base_plus_suffix(temp,".hpp");
157      delete temp;
158      temp = base_plus_suffix("adGlobals_",base);
159      AD._VM_file._name = base_plus_suffix(temp,".hpp");
160      delete temp;
161      temp = base_plus_suffix("bugs_",base);
162      AD._bug_file._name = base_plus_suffix(temp,".out");
163      delete temp;
164    }                           // End of files vs options...
165  }                             // End of while have command line arguments
166
167  // Open files used to store the matcher and its components
168  if (AD.open_files() == 0) return 1; // Open all input/output files
169
170  // Build the File Buffer, Parse the input, & Generate Code
171  FileBuff  ADL_Buf(&AD._ADL_file, AD); // Create a file buffer for input file
172
173  // Get pointer to legal text at the beginning of AD file.
174  // It will be used in generated ad files.
175  char* legal_text;
176  int legal_sz = get_legal_text(ADL_Buf, &legal_text);
177
178  ADL_Parse = new ADLParser(ADL_Buf, AD); // Create a parser to parse the buffer
179  ADL_Parse->parse();           // Parse buffer & build description lists
180
181  if( AD._dfa_debug >= 1 ) {    // For higher debug settings, print dump
182    AD.dump();
183  }
184
185  delete ADL_Parse;             // Delete parser
186
187  // Verify that the results of the parse are consistent
188  AD.verify();
189
190  // Prepare to generate the result files:
191  AD.generateMatchLists();
192  AD.identify_unique_operands();
193  AD.identify_cisc_spill_instructions();
194  AD.identify_short_branches();
195  // Make sure every file starts with a copyright:
196  AD.addSunCopyright(legal_text, legal_sz, AD._HPP_file._fp);           // .hpp
197  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_file._fp);           // .cpp
198  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_CLONE_file._fp);     // .cpp
199  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_EXPAND_file._fp);    // .cpp
200  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_FORMAT_file._fp);    // .cpp
201  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_GEN_file._fp);       // .cpp
202  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_MISC_file._fp);      // .cpp
203  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_PEEPHOLE_file._fp);  // .cpp
204  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_PIPELINE_file._fp);  // .cpp
205  AD.addSunCopyright(legal_text, legal_sz, AD._VM_file._fp);            // .hpp
206  AD.addSunCopyright(legal_text, legal_sz, AD._DFA_file._fp);           // .cpp
207  // Add include guards for all .hpp files
208  AD.addIncludeGuardStart(AD._HPP_file, "GENERATED_ADFILES_AD_HPP");        // .hpp
209  AD.addIncludeGuardStart(AD._VM_file, "GENERATED_ADFILES_ADGLOBALS_HPP");  // .hpp
210  // Add includes
211  AD.addInclude(AD._CPP_file, "precompiled.hpp");
212  AD.addInclude(AD._CPP_file, "adfiles", get_basename(AD._VM_file._name));
213  AD.addInclude(AD._CPP_file, "adfiles", get_basename(AD._HPP_file._name));
214  AD.addInclude(AD._CPP_file, "memory/allocation.inline.hpp");
215  AD.addInclude(AD._CPP_file, "asm/macroAssembler.inline.hpp");
216  AD.addInclude(AD._CPP_file, "code/compiledIC.hpp");
217  AD.addInclude(AD._CPP_file, "code/vmreg.hpp");
218  AD.addInclude(AD._CPP_file, "gc_interface/collectedHeap.inline.hpp");
219  AD.addInclude(AD._CPP_file, "oops/compiledICHolder.hpp");
220  AD.addInclude(AD._CPP_file, "oops/markOop.hpp");
221  AD.addInclude(AD._CPP_file, "oops/method.hpp");
222  AD.addInclude(AD._CPP_file, "oops/oop.inline.hpp");
223  AD.addInclude(AD._CPP_file, "oops/oop.inline2.hpp");
224  AD.addInclude(AD._CPP_file, "opto/cfgnode.hpp");
225  AD.addInclude(AD._CPP_file, "opto/locknode.hpp");
226  AD.addInclude(AD._CPP_file, "opto/opcodes.hpp");
227  AD.addInclude(AD._CPP_file, "opto/regalloc.hpp");
228  AD.addInclude(AD._CPP_file, "opto/regmask.hpp");
229  AD.addInclude(AD._CPP_file, "opto/runtime.hpp");
230  AD.addInclude(AD._CPP_file, "runtime/biasedLocking.hpp");
231  AD.addInclude(AD._CPP_file, "runtime/sharedRuntime.hpp");
232  AD.addInclude(AD._CPP_file, "runtime/stubRoutines.hpp");
233  AD.addInclude(AD._CPP_file, "utilities/growableArray.hpp");
234#ifdef TARGET_ARCH_x86
235  AD.addInclude(AD._CPP_file, "nativeInst_x86.hpp");
236  AD.addInclude(AD._CPP_file, "vmreg_x86.inline.hpp");
237#endif
238#ifdef TARGET_ARCH_sparc
239  AD.addInclude(AD._CPP_file, "nativeInst_sparc.hpp");
240  AD.addInclude(AD._CPP_file, "vmreg_sparc.inline.hpp");
241#endif
242#ifdef TARGET_ARCH_arm
243  AD.addInclude(AD._CPP_file, "nativeInst_arm.hpp");
244  AD.addInclude(AD._CPP_file, "vmreg_arm.inline.hpp");
245#endif
246#ifdef TARGET_ARCH_ppc
247  AD.addInclude(AD._CPP_file, "assembler_ppc.inline.hpp");
248  AD.addInclude(AD._CPP_file, "nativeInst_ppc.hpp");
249  AD.addInclude(AD._CPP_file, "vmreg_ppc.inline.hpp");
250#endif
251  AD.addInclude(AD._HPP_file, "memory/allocation.hpp");
252  AD.addInclude(AD._HPP_file, "opto/machnode.hpp");
253  AD.addInclude(AD._HPP_file, "opto/node.hpp");
254  AD.addInclude(AD._HPP_file, "opto/regalloc.hpp");
255  AD.addInclude(AD._HPP_file, "opto/subnode.hpp");
256  AD.addInclude(AD._HPP_file, "opto/vectornode.hpp");
257  AD.addInclude(AD._CPP_CLONE_file, "precompiled.hpp");
258  AD.addInclude(AD._CPP_CLONE_file, "adfiles", get_basename(AD._HPP_file._name));
259  AD.addInclude(AD._CPP_EXPAND_file, "precompiled.hpp");
260  AD.addInclude(AD._CPP_EXPAND_file, "adfiles", get_basename(AD._HPP_file._name));
261  AD.addInclude(AD._CPP_FORMAT_file, "precompiled.hpp");
262  AD.addInclude(AD._CPP_FORMAT_file, "adfiles", get_basename(AD._HPP_file._name));
263  AD.addInclude(AD._CPP_GEN_file, "precompiled.hpp");
264  AD.addInclude(AD._CPP_GEN_file, "adfiles", get_basename(AD._HPP_file._name));
265  AD.addInclude(AD._CPP_GEN_file, "opto/cfgnode.hpp");
266  AD.addInclude(AD._CPP_GEN_file, "opto/locknode.hpp");
267  AD.addInclude(AD._CPP_MISC_file, "precompiled.hpp");
268  AD.addInclude(AD._CPP_MISC_file, "adfiles", get_basename(AD._HPP_file._name));
269  AD.addInclude(AD._CPP_PEEPHOLE_file, "precompiled.hpp");
270  AD.addInclude(AD._CPP_PEEPHOLE_file, "adfiles", get_basename(AD._HPP_file._name));
271  AD.addInclude(AD._CPP_PIPELINE_file, "precompiled.hpp");
272  AD.addInclude(AD._CPP_PIPELINE_file, "adfiles", get_basename(AD._HPP_file._name));
273  AD.addInclude(AD._DFA_file, "precompiled.hpp");
274  AD.addInclude(AD._DFA_file, "adfiles", get_basename(AD._HPP_file._name));
275  AD.addInclude(AD._DFA_file, "opto/matcher.hpp");
276  AD.addInclude(AD._DFA_file, "opto/opcodes.hpp");
277  // Make sure each .cpp file starts with include lines:
278  // files declaring and defining generators for Mach* Objects (hpp,cpp)
279  // Generate the result files:
280  // enumerations, class definitions, object generators, and the DFA
281  // file containing enumeration of machine operands & instructions (hpp)
282  AD.addPreHeaderBlocks(AD._HPP_file._fp);        // .hpp
283  AD.buildMachOperEnum(AD._HPP_file._fp);         // .hpp
284  AD.buildMachOpcodesEnum(AD._HPP_file._fp);      // .hpp
285  AD.buildMachRegisterNumbers(AD._VM_file._fp);   // VM file
286  AD.buildMachRegisterEncodes(AD._HPP_file._fp);  // .hpp file
287  AD.declareRegSizes(AD._HPP_file._fp);           // .hpp
288  AD.build_pipeline_enums(AD._HPP_file._fp);      // .hpp
289  // output definition of class "State"
290  AD.defineStateClass(AD._HPP_file._fp);          // .hpp
291  // file declaring the Mach* classes derived from MachOper and MachNode
292  AD.declareClasses(AD._HPP_file._fp);
293  // declare and define maps: in the .hpp and .cpp files respectively
294  AD.addSourceBlocks(AD._CPP_file._fp);           // .cpp
295  AD.addHeaderBlocks(AD._HPP_file._fp);           // .hpp
296  AD.buildReduceMaps(AD._HPP_file._fp, AD._CPP_file._fp);
297  AD.buildMustCloneMap(AD._HPP_file._fp, AD._CPP_file._fp);
298  // build CISC_spilling oracle and MachNode::cisc_spill() methods
299  AD.build_cisc_spill_instructions(AD._HPP_file._fp, AD._CPP_file._fp);
300  // define methods for machine dependent State, MachOper, and MachNode classes
301  AD.defineClasses(AD._CPP_file._fp);
302  AD.buildMachOperGenerator(AD._CPP_GEN_file._fp);// .cpp
303  AD.buildMachNodeGenerator(AD._CPP_GEN_file._fp);// .cpp
304  // define methods for machine dependent instruction matching
305  AD.buildInstructMatchCheck(AD._CPP_file._fp);  // .cpp
306  // define methods for machine dependent frame management
307  AD.buildFrameMethods(AD._CPP_file._fp);         // .cpp
308
309  // do this last:
310  AD.addPreprocessorChecks(AD._CPP_file._fp);     // .cpp
311  AD.addPreprocessorChecks(AD._CPP_CLONE_file._fp);     // .cpp
312  AD.addPreprocessorChecks(AD._CPP_EXPAND_file._fp);    // .cpp
313  AD.addPreprocessorChecks(AD._CPP_FORMAT_file._fp);    // .cpp
314  AD.addPreprocessorChecks(AD._CPP_GEN_file._fp);       // .cpp
315  AD.addPreprocessorChecks(AD._CPP_MISC_file._fp);      // .cpp
316  AD.addPreprocessorChecks(AD._CPP_PEEPHOLE_file._fp);  // .cpp
317  AD.addPreprocessorChecks(AD._CPP_PIPELINE_file._fp);  // .cpp
318
319  // define the finite automata that selects lowest cost production
320  AD.buildDFA(AD._DFA_file._fp);
321  // Add include guards for all .hpp files
322  AD.addIncludeGuardEnd(AD._HPP_file, "GENERATED_ADFILES_AD_HPP");        // .hpp
323  AD.addIncludeGuardEnd(AD._VM_file, "GENERATED_ADFILES_ADGLOBALS_HPP");  // .hpp
324
325  AD.close_files(0);               // Close all input/output files
326
327  // Final printout and statistics
328  // cout << program;
329
330  if( AD._dfa_debug & 2 ) {    // For higher debug settings, print timing info
331    //    Timer t_stop;
332    //    Timer t_total = t_stop - t_start; // Total running time
333    //    cerr << "\n---Architecture Description Totals---\n";
334    //    cerr << ", Total lines: " << TotalLines;
335    //    float l = TotalLines;
336    //    cerr << "\nTotal Compilation Time: " << t_total << "\n";
337    //    float ft = (float)t_total;
338    //    if( ft > 0.0 ) fprintf(stderr,"Lines/sec: %#5.2f\n", l/ft);
339  }
340  return (AD._syntax_errs + AD._semantic_errs + AD._internal_errs); // Bye Bye!!
341}
342
343//------------------------------usage------------------------------------------
344static void usage(ArchDesc& AD)
345{
346  printf("Architecture Description Language Compiler\n\n");
347  printf("Usage: adlc [-doqwTs] [-#]* [-D<FLAG>[=<DEF>]] [-U<FLAG>] [-c<CPP_FILE_NAME>] [-h<HPP_FILE_NAME>] [-a<DFA_FILE_NAME>] [-v<GLOBALS_FILE_NAME>] <ADL_FILE_NAME>\n");
348  printf(" d  produce DFA debugging info\n");
349  printf(" o  no output produced, syntax and semantic checking only\n");
350  printf(" q  quiet mode, supresses all non-essential messages\n");
351  printf(" w  suppress warning messages\n");
352  printf(" T  make DFA as many subroutine calls\n");
353  printf(" s  output which instructions are cisc-spillable\n");
354  printf(" D  define preprocessor symbol\n");
355  printf(" U  undefine preprocessor symbol\n");
356  printf(" c  specify CPP file name (default: %s)\n", AD._CPP_file._name);
357  printf(" h  specify HPP file name (default: %s)\n", AD._HPP_file._name);
358  printf(" a  specify DFA output file name\n");
359  printf(" v  specify adGlobals output file name\n");
360  printf(" #  increment ADL debug level\n");
361  printf("\n");
362}
363
364//------------------------------open_file------------------------------------
365int ArchDesc::open_file(bool required, ADLFILE & ADF, const char *action)
366{
367  if (required &&
368      (ADF._fp = fopen(ADF._name, action)) == NULL) {
369    printf("ERROR: Cannot open file for %s: %s\n", action, ADF._name);
370    close_files(1);
371    return 0;
372  }
373  return 1;
374}
375
376//------------------------------open_files-------------------------------------
377int ArchDesc::open_files(void)
378{
379  if (_ADL_file._name == NULL)
380  { printf("ERROR: No ADL input file specified\n"); return 0; }
381
382  if (!open_file(true       , _ADL_file, "r"))          { return 0; }
383  if (!open_file(!_no_output, _DFA_file, "w"))          { return 0; }
384  if (!open_file(!_no_output, _HPP_file, "w"))          { return 0; }
385  if (!open_file(!_no_output, _CPP_file, "w"))          { return 0; }
386  if (!open_file(!_no_output, _CPP_CLONE_file, "w"))    { return 0; }
387  if (!open_file(!_no_output, _CPP_EXPAND_file, "w"))   { return 0; }
388  if (!open_file(!_no_output, _CPP_FORMAT_file, "w"))   { return 0; }
389  if (!open_file(!_no_output, _CPP_GEN_file, "w"))      { return 0; }
390  if (!open_file(!_no_output, _CPP_MISC_file, "w"))     { return 0; }
391  if (!open_file(!_no_output, _CPP_PEEPHOLE_file, "w")) { return 0; }
392  if (!open_file(!_no_output, _CPP_PIPELINE_file, "w")) { return 0; }
393  if (!open_file(!_no_output, _VM_file , "w"))          { return 0; }
394  if (!open_file(_dfa_debug != 0, _bug_file, "w"))    { return 0; }
395
396  return 1;
397}
398
399//------------------------------close_file------------------------------------
400void ArchDesc::close_file(int delete_out, ADLFILE& ADF)
401{
402  if (ADF._fp) {
403    fclose(ADF._fp);
404    if (delete_out) remove(ADF._name);
405  }
406}
407
408//------------------------------close_files------------------------------------
409void ArchDesc::close_files(int delete_out)
410{
411  if (_ADL_file._fp) fclose(_ADL_file._fp);
412
413  close_file(delete_out, _CPP_file);
414  close_file(delete_out, _CPP_CLONE_file);
415  close_file(delete_out, _CPP_EXPAND_file);
416  close_file(delete_out, _CPP_FORMAT_file);
417  close_file(delete_out, _CPP_GEN_file);
418  close_file(delete_out, _CPP_MISC_file);
419  close_file(delete_out, _CPP_PEEPHOLE_file);
420  close_file(delete_out, _CPP_PIPELINE_file);
421  close_file(delete_out, _HPP_file);
422  close_file(delete_out, _DFA_file);
423  close_file(delete_out, _bug_file);
424
425  if (!_quiet_mode) {
426    printf("\n");
427    if (_no_output || delete_out) {
428      if (_ADL_file._name) printf("%s: ", _ADL_file._name);
429      printf("No output produced");
430    }
431    else {
432      if (_ADL_file._name) printf("%s --> ", _ADL_file._name);
433      printf("%s, %s, %s, %s, %s, %s, %s, %s, %s, %s",
434             _CPP_file._name,
435             _CPP_CLONE_file._name,
436             _CPP_EXPAND_file._name,
437             _CPP_FORMAT_file._name,
438             _CPP_GEN_file._name,
439             _CPP_MISC_file._name,
440             _CPP_PEEPHOLE_file._name,
441             _CPP_PIPELINE_file._name,
442             _HPP_file._name,
443             _DFA_file._name);
444    }
445    printf("\n");
446  }
447}
448
449//------------------------------strip_ext--------------------------------------
450static char *strip_ext(char *fname)
451{
452  char *ep;
453
454  if (fname) {
455    ep = fname + strlen(fname) - 1; // start at last character and look for '.'
456    while (ep >= fname && *ep != '.') --ep;
457    if (*ep == '.')     *ep = '\0'; // truncate string at '.'
458  }
459  return fname;
460}
461
462//------------------------------base_plus_suffix-------------------------------
463// New concatenated string
464static char *base_plus_suffix(const char* base, const char *suffix)
465{
466  int len = (int)strlen(base) + (int)strlen(suffix) + 1;
467
468  char* fname = new char[len];
469  sprintf(fname,"%s%s",base,suffix);
470  return fname;
471}
472
473//------------------------------get_legal_text---------------------------------
474// Get pointer to legal text at the beginning of AD file.
475// This code assumes that a legal text starts at the beginning of .ad files,
476// is commented by "//" at each line and ends with empty line.
477//
478int get_legal_text(FileBuff &fbuf, char **legal_text)
479{
480  char* legal_start = fbuf.get_line();
481  assert(legal_start[0] == '/' && legal_start[1] == '/', "Incorrect header of AD file");
482  char* legal_end = fbuf.get_line();
483  assert(strncmp(legal_end, "// Copyright", 12) == 0, "Incorrect header of AD file");
484  while(legal_end[0] == '/' && legal_end[1] == '/') {
485    legal_end = fbuf.get_line();
486  }
487  *legal_text = legal_start;
488  return (int) (legal_end - legal_start);
489}
490
491// VS2005 has its own definition, identical to this one.
492#if !defined(_WIN32) || defined(_WIN64) || _MSC_VER < 1400
493void *operator new( size_t size, int, const char *, int ) throw() {
494  return ::operator new( size );
495}
496#endif
497