icuSources/tools/genccode/genccode.c

   1 /*
   2  *******************************************************************************
   3  *   Copyright (C) 1999-2016, International Business Machines
   4  *   Corporation and others.  All Rights Reserved.
   5  *******************************************************************************
   6  *   file name:  gennames.c
   7  *   encoding:   US-ASCII
   8  *   tab size:   8 (not used)
   9  *   indentation:4
  10  *
  11  *   created on: 1999nov01
  12  *   created by: Markus W. Scherer
  13  *
  14  *   This program reads a binary file and creates a C source code file
  15  *   with a byte array that contains the data of the binary file.
  16  *
  17  *   12/09/1999  weiv    Added multiple file handling
  18  */
  19
  20 #include "unicode/utypes.h"
  21
  22 #if U_PLATFORM_HAS_WIN32_API
  23 #   define VC_EXTRALEAN
  24 #   define WIN32_LEAN_AND_MEAN
  25 #   define NOUSER
  26 #   define NOSERVICE
  27 #   define NOIME
  28 #   define NOMCX
  29 #include <windows.h>
  30 #include <time.h>
  31 #endif
  32
  33 #if U_PLATFORM_IS_LINUX_BASED && U_HAVE_ELF_H
  34 #   define U_ELF
  35 #endif
  36
  37 #ifdef U_ELF
  38 #   include <elf.h>
  39 #   if defined(ELFCLASS64)
  40 #       define U_ELF64
  41 #   endif
  42     /* Old elf.h headers may not have EM_X86_64, or have EM_X8664 instead. */
  43 #   ifndef EM_X86_64
  44 #       define EM_X86_64 62
  45 #   endif
  46 #   define ICU_ENTRY_OFFSET 0
  47 #endif
  48
  49 #include <stdio.h>
  50 #include <stdlib.h>
  51 #include "unicode/putil.h"
  52 #include "cmemory.h"
  53 #include "cstring.h"
  54 #include "filestrm.h"
  55 #include "toolutil.h"
  56 #include "unicode/uclean.h"
  57 #include "uoptions.h"
  58 #include "pkg_genc.h"
  59
  60 enum {
  61   kOptHelpH = 0,
  62   kOptHelpQuestionMark,
  63   kOptDestDir,
  64   kOptName,
  65   kOptEntryPoint,
  66 #ifdef CAN_GENERATE_OBJECTS
  67   kOptObject,
  68   kOptMatchArch,
  69 #endif
  70   kOptFilename,
  71   kOptAssembly
  72 };
  73
  74 static UOption options[]={
  75 /*0*/UOPTION_HELP_H,
  76      UOPTION_HELP_QUESTION_MARK,
  77      UOPTION_DESTDIR,
  78      UOPTION_DEF("name", 'n', UOPT_REQUIRES_ARG),
  79      UOPTION_DEF("entrypoint", 'e', UOPT_REQUIRES_ARG),
  80 #ifdef CAN_GENERATE_OBJECTS
  81 /*5*/UOPTION_DEF("object", 'o', UOPT_NO_ARG),
  82      UOPTION_DEF("match-arch", 'm', UOPT_REQUIRES_ARG),
  83 #endif
  84      UOPTION_DEF("filename", 'f', UOPT_REQUIRES_ARG),
  85      UOPTION_DEF("assembly", 'a', UOPT_REQUIRES_ARG)
  86 };
  87
  88 #define CALL_WRITECCODE     'c'
  89 #define CALL_WRITEASSEMBLY  'a'
  90 #define CALL_WRITEOBJECT    'o'
  91 extern int
  92 main(int argc, char* argv[]) {
  93     UBool verbose = TRUE;
  94     char writeCode;
  95
  96     U_MAIN_INIT_ARGS(argc, argv);
  97
  98     options[kOptDestDir].value = ".";
  99
 100     /* read command line options */
 101     argc=u_parseArgs(argc, argv, UPRV_LENGTHOF(options), options);
 102
 103     /* error handling, printing usage message */
 104     if(argc<0) {
 105         fprintf(stderr,
 106             "error in command line argument \"%s\"\n",
 107             argv[-argc]);
 108     }
 109     if(argc<0 || options[kOptHelpH].doesOccur || options[kOptHelpQuestionMark].doesOccur) {
 110         fprintf(stderr,
 111             "usage: %s [-options] filename1 filename2 ...\n"
 112             "\tread each binary input file and \n"
 113             "\tcreate a .c file with a byte array that contains the input file's data\n"
 114             "options:\n"
 115             "\t-h or -? or --help  this usage text\n"
 116             "\t-d or --destdir     destination directory, followed by the path\n"
 117             "\t-n or --name        symbol prefix, followed by the prefix\n"
 118             "\t-e or --entrypoint  entry point name, followed by the name (_dat will be appended)\n"
 119             "\t-r or --revision    Specify a version\n"
 120             , argv[0]);
 121 #ifdef CAN_GENERATE_OBJECTS
 122         fprintf(stderr,
 123             "\t-o or --object      write a .obj file instead of .c\n"
 124             "\t-m or --match-arch file.o  match the architecture (CPU, 32/64 bits) of the specified .o\n"
 125             "\t                    ELF format defaults to i386. Windows defaults to the native platform.\n");
 126 #endif
 127         fprintf(stderr,
 128             "\t-f or --filename    Specify an alternate base filename. (default: symbolname_typ)\n"
 129             "\t-a or --assembly    Create assembly file. (possible values are: ");
 130
 131         printAssemblyHeadersToStdErr();
 132     } else {
 133         const char *message, *filename;
 134         /* TODO: remove void (*writeCode)(const char *, const char *); */
 135
 136         if(options[kOptAssembly].doesOccur) {
 137             message="generating assembly code for %s\n";
 138             writeCode = CALL_WRITEASSEMBLY;
 139             /* TODO: remove writeCode=&writeAssemblyCode; */
 140
 141             if (!checkAssemblyHeaderName(options[kOptAssembly].value)) {
 142                 fprintf(stderr,
 143                     "Assembly type \"%s\" is unknown.\n", options[kOptAssembly].value);
 144                 return -1;
 145             }
 146         }
 147 #ifdef CAN_GENERATE_OBJECTS
 148         else if(options[kOptObject].doesOccur) {
 149             message="generating object code for %s\n";
 150             writeCode = CALL_WRITEOBJECT;
 151             /* TODO: remove writeCode=&writeObjectCode; */
 152         }
 153 #endif
 154         else
 155         {
 156             message="generating C code for %s\n";
 157             writeCode = CALL_WRITECCODE;
 158             /* TODO: remove writeCode=&writeCCode; */
 159         }
 160         while(--argc) {
 161             filename=getLongPathname(argv[argc]);
 162             if (verbose) {
 163                 fprintf(stdout, message, filename);
 164             }
 165
 166             switch (writeCode) {
 167             case CALL_WRITECCODE:
 168                 writeCCode(filename, options[kOptDestDir].value,
 169                            options[kOptName].doesOccur ? options[kOptName].value : NULL,
 170                            options[kOptFilename].doesOccur ? options[kOptFilename].value : NULL,
 171                            NULL);
 172                 break;
 173             case CALL_WRITEASSEMBLY:
 174                 writeAssemblyCode(filename, options[kOptDestDir].value,
 175                                   options[kOptEntryPoint].doesOccur ? options[kOptEntryPoint].value : NULL,
 176                                   options[kOptFilename].doesOccur ? options[kOptFilename].value : NULL,
 177                                   NULL);
 178                 break;
 179 #ifdef CAN_GENERATE_OBJECTS
 180             case CALL_WRITEOBJECT:
 181                 writeObjectCode(filename, options[kOptDestDir].value,
 182                                 options[kOptEntryPoint].doesOccur ? options[kOptEntryPoint].value : NULL,
 183                                 options[kOptMatchArch].doesOccur ? options[kOptMatchArch].value : NULL,
 184                                 options[kOptFilename].doesOccur ? options[kOptFilename].value : NULL,
 185                                 NULL);
 186                 break;
 187 #endif
 188             default:
 189                 /* Should never occur. */
 190                 break;
 191             }
 192             /* TODO: remove writeCode(filename, options[kOptDestDir].value); */
 193         }
 194     }
 195
 196     return 0;
 197 }