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annotate lwlink/output.c @ 304:d85d173ba120 ccdev

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Checkpoint lwcc development - preprocessor is runnable but nonfunctional The preprocessor is currently runnable but doesn't actually do anything useful. This is just a checkpoint.
author William Astle <lost@l-w.ca>
date Tue, 17 Sep 2013 19:33:41 -0600
parents 346966cffeef
children a640ff4ed95f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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1 /*
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2 output.c
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3 Copyright © 2009 William Astle
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4
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5 This file is part of LWLINK.
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6
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7 LWLINK is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20
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21 Actually output the binary
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22 */
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23
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26 #include <string.h>
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27
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28 #include "lwlink.h"
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29
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30 // this prevents warnings about not using the return value of fwrite()
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31 // and, theoretically, can be replaced with a function that handles things
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32 // better in the future
264
346966cffeef Clean up various warnings when building under -Wall
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33 //#define writebytes(s, l, c, f) do { int r; r = fwrite((s), (l), (c), (f)); (void)r; } while (0)
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34 #define writebytes(s, l, c, f) do { (void)(fwrite((s), (l), (c), (f)) && 1); } while (0)
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35
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36 void do_output_os9(FILE *of);
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37 void do_output_decb(FILE *of);
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38 void do_output_raw(FILE *of);
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39 void do_output_lwex0(FILE *of);
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40
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41 void do_output(void)
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42 {
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43 FILE *of;
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44
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45 of = fopen(outfile, "wb");
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46 if (!of)
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47 {
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48 fprintf(stderr, "Cannot open output file %s: ", outfile);
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49 perror("");
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50 exit(1);
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51 }
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52
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53 switch (outformat)
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54 {
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55 case OUTPUT_DECB:
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56 do_output_decb(of);
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57 break;
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58
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59 case OUTPUT_RAW:
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60 do_output_raw(of);
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61 break;
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62
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63 case OUTPUT_LWEX0:
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64 do_output_lwex0(of);
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65 break;
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66
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67 case OUTPUT_OS9:
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68 do_output_os9(of);
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69 break;
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70
0
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71 default:
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72 fprintf(stderr, "Unknown output format doing output!\n");
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73 exit(111);
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74 }
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75
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76 fclose(of);
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77 }
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78
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79 void do_output_decb(FILE *of)
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80 {
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81 int sn, sn2;
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82 int cloc, olen;
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83 unsigned char buf[5];
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84
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85 for (sn = 0; sn < nsects; sn++)
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86 {
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87 if (sectlist[sn].ptr -> flags & SECTION_BSS)
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88 {
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89 // no output for a BSS section
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90 continue;
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91 }
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92 if (sectlist[sn].ptr -> codesize == 0)
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93 {
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94 // don't generate output for a zero size section
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95 continue;
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96 }
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97
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98 // calculate the length of this output block
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99 cloc = sectlist[sn].ptr -> loadaddress;
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100 olen = 0;
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101 for (sn2 = sn; sn2 < nsects; sn2++)
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102 {
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103 // ignore BSS sections
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104 if (sectlist[sn2].ptr -> flags & SECTION_BSS)
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105 continue;
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106 // ignore zero length sections
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107 if (sectlist[sn2].ptr -> codesize == 0)
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108 continue;
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109 if (cloc != sectlist[sn2].ptr -> loadaddress)
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110 break;
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111 olen += sectlist[sn2].ptr -> codesize;
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112 cloc += sectlist[sn2].ptr -> codesize;
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113 }
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114
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115 // write a preamble
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116 buf[0] = 0x00;
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117 buf[1] = olen >> 8;
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118 buf[2] = olen & 0xff;
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119 buf[3] = sectlist[sn].ptr -> loadaddress >> 8;
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120 buf[4] = sectlist[sn].ptr -> loadaddress & 0xff;
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121 writebytes(buf, 1, 5, of);
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122 for (; sn < sn2; sn++)
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123 {
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124 if (sectlist[sn].ptr -> flags & SECTION_BSS)
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125 continue;
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126 if (sectlist[sn].ptr -> codesize == 0)
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127 continue;
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128 writebytes(sectlist[sn].ptr -> code, 1, sectlist[sn].ptr -> codesize, of);
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129 }
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130 sn--;
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131 }
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132 // write a postamble
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133 buf[0] = 0xff;
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134 buf[1] = 0x00;
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135 buf[2] = 0x00;
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136 buf[3] = linkscript.execaddr >> 8;
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137 buf[4] = linkscript.execaddr & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
138 writebytes(buf, 1, 5, of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
139 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
140
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
141 void do_output_raw(FILE *of)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
142 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
143 int nskips = 0; // used to output blanks for BSS inline
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
144 int sn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
145
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
146 for (sn = 0; sn < nsects; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
147 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
148 if (sectlist[sn].ptr -> flags & SECTION_BSS)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
149 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
150 // no output for a BSS section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
151 nskips += sectlist[sn].ptr -> codesize;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
152 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
153 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
154 while (nskips > 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
155 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
156 // the "" is not an error - it turns into a single NUL byte!
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
157 writebytes("", 1, 1, of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
158 nskips--;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
159 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
160 writebytes(sectlist[sn].ptr -> code, 1, sectlist[sn].ptr -> codesize, of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
161 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
162 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
163
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
164 void do_output_lwex0(FILE *of)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
165 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
166 int nskips = 0; // used to output blanks for BSS inline
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
167 int sn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
168 int codedatasize = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
169 unsigned char buf[32];
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
170
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
171 // calculate items for the file header
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
172 for (sn = 0; sn < nsects; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
173 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
174 if (sectlist[sn].ptr -> flags & SECTION_BSS)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
175 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
176 // no output for a BSS section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
177 nskips += sectlist[sn].ptr -> codesize;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
178 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
179 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
180 codedatasize += nskips;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
181 nskips = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
182 codedatasize += sectlist[sn].ptr -> codesize;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
183 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
184
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
185 // output the file header
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
186 buf[0] = 'L';
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
187 buf[1] = 'W';
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
188 buf[2] = 'E';
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
189 buf[3] = 'X';
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
190 buf[4] = 0; // version 0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
191 buf[5] = 0; // low stack
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
192 buf[6] = linkscript.stacksize / 256;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
193 buf[7] = linkscript.stacksize & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
194 buf[8] = nskips / 256;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
195 buf[9] = nskips & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
196 buf[10] = codedatasize / 256;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
197 buf[11] = codedatasize & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
198 buf[12] = linkscript.execaddr / 256;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
199 buf[13] = linkscript.execaddr & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
200 memset(buf + 14, 0, 18);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
201
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
202 writebytes(buf, 1, 32, of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
203 // output the data
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
204 // NOTE: disjoint load addresses will not work correctly!!!!!
180
11b710d231bd Fixed bug handling bss in lwex
lost@l-w.ca
parents: 151
diff changeset
205 nskips = 0;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
206 for (sn = 0; sn < nsects; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
207 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
208 if (sectlist[sn].ptr -> flags & SECTION_BSS)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
209 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
210 // no output for a BSS section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
211 nskips += sectlist[sn].ptr -> codesize;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
212 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
213 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
214 while (nskips > 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
215 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
216 // the "" is not an error - it turns into a single NUL byte!
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
217 writebytes("", 1, 1, of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
218 nskips--;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
219 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
220 writebytes(sectlist[sn].ptr -> code, 1, sectlist[sn].ptr -> codesize, of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
221 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
222 }
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
223
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
224 void os9crc(unsigned char crc[3], unsigned char b)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
225 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
226 b ^= crc[0];
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
227 crc[0] = crc[1];
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
228 crc[1] = crc[2];
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
229 crc[1] ^= b >> 7;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
230 crc[2] = b << 1;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
231 crc[1] ^= b >> 2;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
232 crc[2] ^= b << 6;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
233 b ^= b << 1;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
234 b ^= b << 2;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
235 b ^= b << 4;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
236 if (b & 0x80)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
237 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
238 crc[0] ^= 0x80;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
239 crc[2] ^= 0x21;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
240 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
241 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
242
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
243
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
244 void do_output_os9(FILE *of)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
245 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
246 int sn;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
247 int codedatasize = 0;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
248 int bsssize = 0;
151
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
249 int nameoff;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
250 int i;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
251
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
252 unsigned char buf[16];
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
253 unsigned char crc[3];
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
254
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
255 // calculate items for the file header
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
256 for (sn = 0; sn < nsects; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
257 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
258 if (sectlist[sn].ptr -> flags & SECTION_BSS)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
259 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
260 // no output for a BSS section
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
261 bsssize += sectlist[sn].ptr -> codesize;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
262 continue;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
263 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
264 codedatasize += sectlist[sn].ptr -> codesize;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
265 }
258
ebda5c96665e Improved stack handling for os9 target in lwlink
William Astle <lost@l-w.ca>
parents: 180
diff changeset
266 bsssize += linkscript.stacksize;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
267
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
268 // now bss size is the data size for the module
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
269 // and codesize is the length of the module minus the module header
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
270 // and CRC
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
271
151
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
272 codedatasize += 13; // add in headers
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
273 nameoff = codedatasize; // we'll put the name at the end
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
274 codedatasize += 3; // add in CRC
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
275 codedatasize += strlen(linkscript.name); // add in name length
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
276 if (linkscript.edition >= 0)
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
277 codedatasize += 1;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
278
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
279 // output the file header
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
280 buf[0] = 0x87;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
281 buf[1] = 0xCD;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
282 buf[2] = (codedatasize >> 8) & 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
283 buf[3] = codedatasize & 0xff;
151
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
284 buf[4] = (nameoff >> 8) & 0xff;
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
285 buf[5] = nameoff & 0xff;
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
286 buf[6] = (linkscript.modtype << 4) | (linkscript.modlang);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
287 buf[7] = (linkscript.modattr << 4) | (linkscript.modrev);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
288 buf[8] = (~(buf[0] ^ buf[1] ^ buf[2] ^ buf[3] ^ buf[4] ^ buf[5] ^ buf[6] ^ buf[7])) & 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
289 buf[9] = (linkscript.execaddr >> 8) & 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
290 buf[10] = linkscript.execaddr & 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
291 buf[11] = (bsssize >> 8) & 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
292 buf[12] = bsssize & 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
293
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
294 crc[0] = 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
295 crc[1] = 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
296 crc[2] = 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
297
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
298 os9crc(crc, buf[0]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
299 os9crc(crc, buf[1]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
300 os9crc(crc, buf[2]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
301 os9crc(crc, buf[3]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
302 os9crc(crc, buf[4]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
303 os9crc(crc, buf[5]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
304 os9crc(crc, buf[6]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
305 os9crc(crc, buf[7]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
306 os9crc(crc, buf[8]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
307 os9crc(crc, buf[9]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
308 os9crc(crc, buf[10]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
309 os9crc(crc, buf[11]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
310 os9crc(crc, buf[12]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
311
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
312
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
313 writebytes(buf, 1, 13, of);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
314
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
315 // output the data
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
316 // NOTE: disjoint load addresses will not work correctly!!!!!
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
317 for (sn = 0; sn < nsects; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
318 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
319 if (sectlist[sn].ptr -> flags & SECTION_BSS)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
320 {
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
321 // no output for a BSS section
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
322 continue;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
323 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
324 writebytes(sectlist[sn].ptr -> code, 1, sectlist[sn].ptr -> codesize, of);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
325 for (i = 0; i < sectlist[sn].ptr -> codesize; i++)
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
326 os9crc(crc, sectlist[sn].ptr -> code[i]);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
327 }
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
328
151
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
329 // output the name
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
330 for (i = 0; linkscript.name[i + 1]; i++)
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
331 {
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
332 writebytes(linkscript.name + i, 1, 1, of);
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
333 os9crc(crc, linkscript.name[i]);
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
334 }
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
335 buf[0] = linkscript.name[i] | 0x80;
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
336 writebytes(buf, 1, 1, of);
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
337 os9crc(crc, buf[0]);
3b58d76ea032 Fix up some minor thinkos in handling the module layout and header
lost@l-w.ca
parents: 148
diff changeset
338
262
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
339 if (linkscript.edition >= 0)
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
340 {
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
341 buf[0] = linkscript.edition & 0x80;
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
342 writebytes(buf, 1, 1, of);
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
343 os9crc(crc, buf[0]);
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
344 }
7de7b14ebaee Add support for os9 module edition byte
William Astle <lost@l-w.ca>
parents: 258
diff changeset
345
148
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
346 crc[0] ^= 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
347 crc[1] ^= 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
348 crc[2] ^= 0xff;
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
349 writebytes(crc, 1, 3, of);
08fb11004df9 Initial pass at OS9 module support for lwlink
lost@l-w.ca
parents: 0
diff changeset
350 }