view src/share/vm/adlc/main.cpp @ 3429:c6f9c897ea33

opto: specify offset of IC load in java_to_interp stub. If a compiled static call calls the interpreter, it jumps past a java_to_interp stub in the compiled code. Patching this call must find the load of the IC. So far the code assumed this is the first instruction in the stub. This might not be the case if, for example, the base of the constant table (toc) must be loaded. Extend CompiledStaticCall to consider an offset from it's beginning where to search the load of the IC.
author Goetz
date Wed, 14 Nov 2012 10:43:39 +0100
parents 0e64ceaafdd6
children 475f3686499a
line wrap: on
line source
/*
 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

// MAIN.CPP - Entry point for the Architecture Description Language Compiler
#include "adlc.hpp"

//------------------------------Prototypes-------------------------------------
static void  usage(ArchDesc& AD);          // Print usage message and exit
static char *strip_ext(char *fname);       // Strip off name extension
static char *base_plus_suffix(const char* base, const char *suffix);// New concatenated string
static char *prefix_plus_base_plus_suffix(const char* prefix, const char* base, const char *suffix);// New concatenated string
static int get_legal_text(FileBuff &fbuf, char **legal_text); // Get pointer to legal text

ArchDesc* globalAD = NULL;      // global reference to Architecture Description object

const char* get_basename(const char* filename) {
  const char *basename = filename;
  const char *cp;
  for (cp = basename; *cp; cp++) {
    if (*cp == '/') {
      basename = cp+1;
    }
  }
  return basename;
}

//------------------------------main-------------------------------------------
int main(int argc, char *argv[])
{
  ArchDesc      AD;             // Architecture Description object
  globalAD = &AD;

  // ResourceMark  mark;
  ADLParser    *ADL_Parse;      // ADL Parser object to parse AD file

  // Check for proper arguments
  if( argc == 1 ) usage(AD);    // No arguments?  Then print usage

  // Read command line arguments and file names
  for( int i = 1; i < argc; i++ ) { // For all arguments
    register char *s = argv[i]; // Get option/filename

    if( *s++ == '-' ) {         // It's a flag? (not a filename)
      if( !*s ) {               // Stand-alone `-' means stdin
        //********** INSERT CODE HERE **********
      } else while (*s != '\0') { // While have flags on option
        switch (*s++) {         // Handle flag
        case 'd':               // Debug flag
          AD._dfa_debug += 1;   // Set Debug Flag
          break;
        case 'g':               // Debug ad location flag
          AD._adlocation_debug += 1;       // Set Debug ad location Flag
          break;
        case 'o':               // No Output Flag
          AD._no_output ^= 1;   // Toggle no_output flag
          break;
        case 'q':               // Quiet Mode Flag
          AD._quiet_mode ^= 1;  // Toggle quiet_mode flag
          break;
        case 'w':               // Disable Warnings Flag
          AD._disable_warnings ^= 1; // Toggle disable_warnings flag
          break;
        case 'T':               // Option to make DFA as many subroutine calls.
          AD._dfa_small += 1;   // Set Mode Flag
          break;
        case 'c': {             // Set C++ Output file name
          AD._CPP_file._name = s;
          const char *base = strip_ext(strdup(s));
          AD._CPP_CLONE_file._name    = base_plus_suffix(base,"_clone.cpp");
          AD._CPP_EXPAND_file._name   = base_plus_suffix(base,"_expand.cpp");
          AD._CPP_FORMAT_file._name   = base_plus_suffix(base,"_format.cpp");
          AD._CPP_GEN_file._name      = base_plus_suffix(base,"_gen.cpp");
          AD._CPP_MISC_file._name     = base_plus_suffix(base,"_misc.cpp");
          AD._CPP_PEEPHOLE_file._name = base_plus_suffix(base,"_peephole.cpp");
          AD._CPP_PIPELINE_file._name = base_plus_suffix(base,"_pipeline.cpp");
          s += strlen(s);
          break;
        }
        case 'h':               // Set C++ Output file name
          AD._HPP_file._name = s; s += strlen(s);
          break;
        case 'v':               // Set C++ Output file name
          AD._VM_file._name = s; s += strlen(s);
          break;
        case 'a':               // Set C++ Output file name
          AD._DFA_file._name = s;
          AD._bug_file._name = s;
          s += strlen(s);
          break;
        case '#':               // Special internal debug flag
          AD._adl_debug++;      // Increment internal debug level
          break;
        case 's':               // Output which instructions are cisc-spillable
          AD._cisc_spill_debug = true;
          break;
        case 'D':               // Flag Definition
          {
            char* flag = s;
            s += strlen(s);
            char* def = strchr(flag, '=');
            if (def == NULL)  def = (char*)"1";
            else              *def++ = '\0';
            AD.set_preproc_def(flag, def);
          }
          break;
        case 'U':               // Flag Un-Definition
          {
            char* flag = s;
            s += strlen(s);
            AD.set_preproc_def(flag, NULL);
          }
          break;
        default:                // Unknown option
          usage(AD);            // So print usage and exit
        }                       // End of switch on options...
      }                         // End of while have options...

    } else {                    // Not an option; must be a filename
      AD._ADL_file._name = argv[i]; // Set the input filename

      // // Files for storage, based on input file name
      const char *base = strip_ext(strdup(argv[i]));
      char       *temp = base_plus_suffix("dfa_",base);
      AD._DFA_file._name = base_plus_suffix(temp,".cpp");
      delete temp;
      temp = base_plus_suffix("ad_",base);
      AD._CPP_file._name          = base_plus_suffix(temp,".cpp");
      AD._CPP_CLONE_file._name    = base_plus_suffix(temp,"_clone.cpp");
      AD._CPP_EXPAND_file._name   = base_plus_suffix(temp,"_expand.cpp");
      AD._CPP_FORMAT_file._name   = base_plus_suffix(temp,"_format.cpp");
      AD._CPP_GEN_file._name      = base_plus_suffix(temp,"_gen.cpp");
      AD._CPP_MISC_file._name     = base_plus_suffix(temp,"_misc.cpp");
      AD._CPP_PEEPHOLE_file._name = base_plus_suffix(temp,"_peephole.cpp");
      AD._CPP_PIPELINE_file._name = base_plus_suffix(temp,"_pipeline.cpp");
      AD._HPP_file._name = base_plus_suffix(temp,".hpp");
      delete temp;
      temp = base_plus_suffix("adGlobals_",base);
      AD._VM_file._name = base_plus_suffix(temp,".hpp");
      delete temp;
      temp = base_plus_suffix("bugs_",base);
      AD._bug_file._name = base_plus_suffix(temp,".out");
      delete temp;
    }                           // End of files vs options...
  }                             // End of while have command line arguments

  // Open files used to store the matcher and its components
  if (AD.open_files() == 0) return 1; // Open all input/output files

  // Build the File Buffer, Parse the input, & Generate Code
  FileBuff  ADL_Buf(&AD._ADL_file, AD); // Create a file buffer for input file

  // Get pointer to legal text at the beginning of AD file.
  // It will be used in generated ad files.
  char* legal_text;
  int legal_sz = get_legal_text(ADL_Buf, &legal_text);

  ADL_Parse = new ADLParser(ADL_Buf, AD); // Create a parser to parse the buffer
  ADL_Parse->parse();           // Parse buffer & build description lists

  if( AD._dfa_debug >= 1 ) {    // For higher debug settings, print dump
    AD.dump();
  }

  delete ADL_Parse;             // Delete parser

  // Verify that the results of the parse are consistent
  AD.verify();

  // Prepare to generate the result files:
  AD.generateMatchLists();
  AD.identify_unique_operands();
  AD.identify_cisc_spill_instructions();
  AD.identify_short_branches();
  // Make sure every file starts with a copyright:
  AD.addSunCopyright(legal_text, legal_sz, AD._HPP_file._fp);           // .hpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_file._fp);           // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_CLONE_file._fp);     // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_EXPAND_file._fp);    // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_FORMAT_file._fp);    // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_GEN_file._fp);       // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_MISC_file._fp);      // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_PEEPHOLE_file._fp);  // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._CPP_PIPELINE_file._fp);  // .cpp
  AD.addSunCopyright(legal_text, legal_sz, AD._VM_file._fp);            // .hpp
  AD.addSunCopyright(legal_text, legal_sz, AD._DFA_file._fp);           // .cpp
  // Add include guards for all .hpp files
  AD.addIncludeGuardStart(AD._HPP_file, "GENERATED_ADFILES_AD_HPP");        // .hpp
  AD.addIncludeGuardStart(AD._VM_file, "GENERATED_ADFILES_ADGLOBALS_HPP");  // .hpp
  // Add includes
  AD.addInclude(AD._CPP_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_file, "adfiles", get_basename(AD._VM_file._name));
  AD.addInclude(AD._CPP_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._CPP_file, "memory/allocation.inline.hpp");
  AD.addInclude(AD._CPP_file, "asm/assembler.hpp");
  AD.addInclude(AD._CPP_file, "code/compiledIC.hpp");
  AD.addInclude(AD._CPP_file, "code/vmreg.hpp");
  AD.addInclude(AD._CPP_file, "gc_interface/collectedHeap.inline.hpp");
  AD.addInclude(AD._CPP_file, "oops/compiledICHolderOop.hpp");
  AD.addInclude(AD._CPP_file, "oops/markOop.hpp");
  AD.addInclude(AD._CPP_file, "oops/methodOop.hpp");
  AD.addInclude(AD._CPP_file, "oops/oop.inline.hpp");
  AD.addInclude(AD._CPP_file, "oops/oop.inline2.hpp");
  AD.addInclude(AD._CPP_file, "opto/cfgnode.hpp");
  AD.addInclude(AD._CPP_file, "opto/locknode.hpp");
  AD.addInclude(AD._CPP_file, "opto/opcodes.hpp");
  AD.addInclude(AD._CPP_file, "opto/regalloc.hpp");
  AD.addInclude(AD._CPP_file, "opto/regmask.hpp");
  AD.addInclude(AD._CPP_file, "opto/runtime.hpp");
  AD.addInclude(AD._CPP_file, "runtime/biasedLocking.hpp");
  AD.addInclude(AD._CPP_file, "runtime/sharedRuntime.hpp");
  AD.addInclude(AD._CPP_file, "runtime/stubRoutines.hpp");
  AD.addInclude(AD._CPP_file, "utilities/growableArray.hpp");
#ifdef TARGET_ARCH_x86
  AD.addInclude(AD._CPP_file, "assembler_x86.inline.hpp");
  AD.addInclude(AD._CPP_file, "nativeInst_x86.hpp");
  AD.addInclude(AD._CPP_file, "vmreg_x86.inline.hpp");
#endif
#ifdef TARGET_ARCH_sparc
  AD.addInclude(AD._CPP_file, "assembler_sparc.inline.hpp");
  AD.addInclude(AD._CPP_file, "nativeInst_sparc.hpp");
  AD.addInclude(AD._CPP_file, "vmreg_sparc.inline.hpp");
#endif
#ifdef TARGET_ARCH_arm
  AD.addInclude(AD._CPP_file, "assembler_arm.inline.hpp");
  AD.addInclude(AD._CPP_file, "nativeInst_arm.hpp");
  AD.addInclude(AD._CPP_file, "vmreg_arm.inline.hpp");
#endif
#ifdef TARGET_ARCH_ppc
  AD.addInclude(AD._CPP_file, "assembler_ppc.inline.hpp");
  AD.addInclude(AD._CPP_file, "nativeInst_ppc.hpp");
  AD.addInclude(AD._CPP_file, "vmreg_ppc.inline.hpp");
#endif
  AD.addInclude(AD._HPP_file, "memory/allocation.hpp");
  AD.addInclude(AD._HPP_file, "opto/machnode.hpp");
  AD.addInclude(AD._HPP_file, "opto/node.hpp");
  AD.addInclude(AD._HPP_file, "opto/regalloc.hpp");
  AD.addInclude(AD._HPP_file, "opto/subnode.hpp");
  AD.addInclude(AD._CPP_CLONE_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_CLONE_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._CPP_EXPAND_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_EXPAND_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._CPP_FORMAT_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_FORMAT_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._CPP_GEN_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_GEN_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._CPP_GEN_file, "opto/cfgnode.hpp");
  AD.addInclude(AD._CPP_GEN_file, "opto/locknode.hpp");
  AD.addInclude(AD._CPP_MISC_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_MISC_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._CPP_PEEPHOLE_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_PEEPHOLE_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._CPP_PIPELINE_file, "precompiled.hpp");
  AD.addInclude(AD._CPP_PIPELINE_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._DFA_file, "precompiled.hpp");
  AD.addInclude(AD._DFA_file, "adfiles", get_basename(AD._HPP_file._name));
  AD.addInclude(AD._DFA_file, "opto/matcher.hpp");
  AD.addInclude(AD._DFA_file, "opto/opcodes.hpp");
  // Make sure each .cpp file starts with include lines:
  // files declaring and defining generators for Mach* Objects (hpp,cpp)
  // Generate the result files:
  // enumerations, class definitions, object generators, and the DFA
  // file containing enumeration of machine operands & instructions (hpp)
  AD.addPreHeaderBlocks(AD._HPP_file._fp);        // .hpp
  AD.buildMachOperEnum(AD._HPP_file._fp);         // .hpp
  AD.buildMachOpcodesEnum(AD._HPP_file._fp);      // .hpp
  AD.buildMachRegisterNumbers(AD._VM_file._fp);   // VM file
  AD.buildMachRegisterEncodes(AD._HPP_file._fp);  // .hpp file
  AD.declareRegSizes(AD._HPP_file._fp);           // .hpp
  AD.build_pipeline_enums(AD._HPP_file._fp);      // .hpp
  // output definition of class "State"
  AD.defineStateClass(AD._HPP_file._fp);          // .hpp
  // file declaring the Mach* classes derived from MachOper and MachNode
  AD.declareClasses(AD._HPP_file._fp);
  // declare and define maps: in the .hpp and .cpp files respectively
  AD.addSourceBlocks(AD._CPP_file._fp);           // .cpp
  AD.addHeaderBlocks(AD._HPP_file._fp);           // .hpp
  AD.buildReduceMaps(AD._HPP_file._fp, AD._CPP_file._fp);
  AD.buildMustCloneMap(AD._HPP_file._fp, AD._CPP_file._fp);
  // build CISC_spilling oracle and MachNode::cisc_spill() methods
  AD.build_cisc_spill_instructions(AD._HPP_file._fp, AD._CPP_file._fp);
  // define methods for machine dependent State, MachOper, and MachNode classes
  AD.defineClasses(AD._CPP_file._fp);
  AD.buildMachOperGenerator(AD._CPP_GEN_file._fp);// .cpp
  AD.buildMachNodeGenerator(AD._CPP_GEN_file._fp);// .cpp
  // define methods for machine dependent instruction matching
  AD.buildInstructMatchCheck(AD._CPP_file._fp);  // .cpp
  // define methods for machine dependent frame management
  AD.buildFrameMethods(AD._CPP_file._fp);         // .cpp

  // do this last:
  AD.addPreprocessorChecks(AD._CPP_file._fp);     // .cpp
  AD.addPreprocessorChecks(AD._CPP_CLONE_file._fp);     // .cpp
  AD.addPreprocessorChecks(AD._CPP_EXPAND_file._fp);    // .cpp
  AD.addPreprocessorChecks(AD._CPP_FORMAT_file._fp);    // .cpp
  AD.addPreprocessorChecks(AD._CPP_GEN_file._fp);       // .cpp
  AD.addPreprocessorChecks(AD._CPP_MISC_file._fp);      // .cpp
  AD.addPreprocessorChecks(AD._CPP_PEEPHOLE_file._fp);  // .cpp
  AD.addPreprocessorChecks(AD._CPP_PIPELINE_file._fp);  // .cpp

  // define the finite automata that selects lowest cost production
  AD.buildDFA(AD._DFA_file._fp);
  // Add include guards for all .hpp files
  AD.addIncludeGuardEnd(AD._HPP_file, "GENERATED_ADFILES_AD_HPP");        // .hpp
  AD.addIncludeGuardEnd(AD._VM_file, "GENERATED_ADFILES_ADGLOBALS_HPP");  // .hpp

  AD.close_files(0);               // Close all input/output files

  // Final printout and statistics
  // cout << program;

  if( AD._dfa_debug & 2 ) {    // For higher debug settings, print timing info
    //    Timer t_stop;
    //    Timer t_total = t_stop - t_start; // Total running time
    //    cerr << "\n---Architecture Description Totals---\n";
    //    cerr << ", Total lines: " << TotalLines;
    //    float l = TotalLines;
    //    cerr << "\nTotal Compilation Time: " << t_total << "\n";
    //    float ft = (float)t_total;
    //    if( ft > 0.0 ) fprintf(stderr,"Lines/sec: %#5.2f\n", l/ft);
  }
  return (AD._syntax_errs + AD._semantic_errs + AD._internal_errs); // Bye Bye!!
}

//------------------------------usage------------------------------------------
static void usage(ArchDesc& AD)
{
  printf("Architecture Description Language Compiler\n\n");
  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");
  printf(" d  produce DFA debugging info\n");
  printf(" o  no output produced, syntax and semantic checking only\n");
  printf(" q  quiet mode, supresses all non-essential messages\n");
  printf(" w  suppress warning messages\n");
  printf(" T  make DFA as many subroutine calls\n");
  printf(" s  output which instructions are cisc-spillable\n");
  printf(" D  define preprocessor symbol\n");
  printf(" U  undefine preprocessor symbol\n");
  printf(" c  specify CPP file name (default: %s)\n", AD._CPP_file._name);
  printf(" h  specify HPP file name (default: %s)\n", AD._HPP_file._name);
  printf(" a  specify DFA output file name\n");
  printf(" #  increment ADL debug level\n");
  printf("\n");
}

//------------------------------open_file------------------------------------
int ArchDesc::open_file(bool required, ADLFILE & ADF, const char *action)
{
  if (required &&
      (ADF._fp = fopen(ADF._name, action)) == NULL) {
    printf("ERROR: Cannot open file for %s: %s\n", action, ADF._name);
    close_files(1);
    return 0;
  }
  return 1;
}

//------------------------------open_files-------------------------------------
int ArchDesc::open_files(void)
{
  if (_ADL_file._name == NULL)
  { printf("ERROR: No ADL input file specified\n"); return 0; }

  if (!open_file(true       , _ADL_file, "r"))          { return 0; }
  if (!open_file(!_no_output, _DFA_file, "w"))          { return 0; }
  if (!open_file(!_no_output, _HPP_file, "w"))          { return 0; }
  if (!open_file(!_no_output, _CPP_file, "w"))          { return 0; }
  if (!open_file(!_no_output, _CPP_CLONE_file, "w"))    { return 0; }
  if (!open_file(!_no_output, _CPP_EXPAND_file, "w"))   { return 0; }
  if (!open_file(!_no_output, _CPP_FORMAT_file, "w"))   { return 0; }
  if (!open_file(!_no_output, _CPP_GEN_file, "w"))      { return 0; }
  if (!open_file(!_no_output, _CPP_MISC_file, "w"))     { return 0; }
  if (!open_file(!_no_output, _CPP_PEEPHOLE_file, "w")) { return 0; }
  if (!open_file(!_no_output, _CPP_PIPELINE_file, "w")) { return 0; }
  if (!open_file(!_no_output, _VM_file , "w"))          { return 0; }
  if (!open_file(_dfa_debug != 0, _bug_file, "w"))    { return 0; }

  return 1;
}

//------------------------------close_file------------------------------------
void ArchDesc::close_file(int delete_out, ADLFILE& ADF)
{
  if (ADF._fp) {
    fclose(ADF._fp);
    if (delete_out) remove(ADF._name);
  }
}

//------------------------------close_files------------------------------------
void ArchDesc::close_files(int delete_out)
{
  if (_ADL_file._fp) fclose(_ADL_file._fp);

  close_file(delete_out, _CPP_file);
  close_file(delete_out, _CPP_CLONE_file);
  close_file(delete_out, _CPP_EXPAND_file);
  close_file(delete_out, _CPP_FORMAT_file);
  close_file(delete_out, _CPP_GEN_file);
  close_file(delete_out, _CPP_MISC_file);
  close_file(delete_out, _CPP_PEEPHOLE_file);
  close_file(delete_out, _CPP_PIPELINE_file);
  close_file(delete_out, _HPP_file);
  close_file(delete_out, _DFA_file);
  close_file(delete_out, _bug_file);

  if (!_quiet_mode) {
    printf("\n");
    if (_no_output || delete_out) {
      if (_ADL_file._name) printf("%s: ", _ADL_file._name);
      printf("No output produced");
    }
    else {
      if (_ADL_file._name) printf("%s --> ", _ADL_file._name);
      printf("%s, %s, %s, %s, %s, %s, %s, %s, %s, %s",
             _CPP_file._name,
             _CPP_CLONE_file._name,
             _CPP_EXPAND_file._name,
             _CPP_FORMAT_file._name,
             _CPP_GEN_file._name,
             _CPP_MISC_file._name,
             _CPP_PEEPHOLE_file._name,
             _CPP_PIPELINE_file._name,
             _HPP_file._name,
             _DFA_file._name);
    }
    printf("\n");
  }
}

//------------------------------strip_ext--------------------------------------
static char *strip_ext(char *fname)
{
  char *ep;

  if (fname) {
    ep = fname + strlen(fname) - 1; // start at last character and look for '.'
    while (ep >= fname && *ep != '.') --ep;
    if (*ep == '.')     *ep = '\0'; // truncate string at '.'
  }
  return fname;
}

//------------------------------base_plus_suffix-------------------------------
// New concatenated string
static char *base_plus_suffix(const char* base, const char *suffix)
{
  int len = (int)strlen(base) + (int)strlen(suffix) + 1;

  char* fname = new char[len];
  sprintf(fname,"%s%s",base,suffix);
  return fname;
}

//------------------------------get_legal_text---------------------------------
// Get pointer to legal text at the beginning of AD file.
// This code assumes that a legal text starts at the beginning of .ad files,
// is commented by "//" at each line and ends with empty line.
//
int get_legal_text(FileBuff &fbuf, char **legal_text)
{
  char* legal_start = fbuf.get_line();
  assert(legal_start[0] == '/' && legal_start[1] == '/', "Incorrect header of AD file");
  char* legal_end = fbuf.get_line();
  assert(strncmp(legal_end, "// Copyright", 12) == 0, "Incorrect header of AD file");
  while(legal_end[0] == '/' && legal_end[1] == '/') {
    legal_end = fbuf.get_line();
  }
  *legal_text = legal_start;
  return (int) (legal_end - legal_start);
}

// VS2005 has its own definition, identical to this one.
#if !defined(_WIN32) || defined(_WIN64) || _MSC_VER < 1400
void *operator new( size_t size, int, const char *, int ) {
  return ::operator new( size );
}
#endif