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annotate lwlink/lwlink.h @ 204:048ebb85f6ef
Added 8 bit external references for base page addressing mode
| author | lost |
|---|---|
| date | Sun, 29 Mar 2009 14:52:28 +0000 |
| parents | 857cb407229e |
| children | 42df94f30d82 |
| rev | line source |
|---|---|
| 112 | 1 /* |
| 2 lwlink.h | |
| 118 | 3 Copyright © 2009 William Astle |
| 112 | 4 |
| 5 This file is part of LWLINK. | |
| 6 | |
| 7 LWLINK is free software: you can redistribute it and/or modify it under the | |
| 8 terms of the GNU General Public License as published by the Free Software | |
| 9 Foundation, either version 3 of the License, or (at your option) any later | |
| 10 version. | |
| 11 | |
| 12 This program is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 15 more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License along with | |
| 18 this program. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | |
| 20 Contains the main defs used by the linker | |
| 21 */ | |
| 22 | |
| 23 | |
| 24 #ifndef __lwlink_h_seen__ | |
| 25 #define __lwlink_h_seen__ | |
| 26 | |
| 116 | 27 #include "expr.h" |
| 28 | |
| 112 | 29 #define OUTPUT_DECB 0 // DECB multirecord format |
| 30 #define OUTPUT_RAW 1 // raw sequence of bytes | |
| 187 | 31 #define OUTPUT_LWEX0 2 // LWOS LWEX binary version 0 |
| 112 | 32 |
| 116 | 33 typedef struct symtab_s symtab_t; |
| 34 struct symtab_s | |
| 35 { | |
| 36 unsigned char *sym; // symbol name | |
| 37 int offset; // local offset | |
| 120 | 38 // int realval; // resolved value |
| 116 | 39 symtab_t *next; // next symbol |
| 40 }; | |
| 41 | |
|
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42 #define RELOC_NORM 0 // all default (16 bit) |
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43 #define RELOC_8BIT 1 // only use the low 8 bits for the reloc |
| 116 | 44 typedef struct reloc_s reloc_t; |
| 45 struct reloc_s | |
| 46 { | |
| 47 int offset; // where in the section | |
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48 int flags; // flags for the relocation |
| 116 | 49 lw_expr_stack_t *expr; // the expression to calculate it |
| 50 reloc_t *next; // ptr to next relocation | |
| 51 }; | |
| 52 | |
| 119 | 53 typedef struct fileinfo_s fileinfo_t; |
| 54 | |
| 116 | 55 #define SECTION_BSS 1 |
| 56 typedef struct | |
| 57 { | |
| 58 unsigned char *name; // name of the section | |
| 59 int flags; // section flags | |
| 60 int codesize; // size of the code | |
| 61 unsigned char *code; // pointer to the code | |
| 62 int loadaddress; // the actual load address of the section | |
| 119 | 63 int processed; // was the section processed yet? |
| 64 | |
| 116 | 65 symtab_t *localsyms; // local symbol table |
| 66 symtab_t *exportedsyms; // exported symbols table | |
| 67 | |
| 68 reloc_t *incompletes; // table of incomplete references | |
| 119 | 69 |
| 70 fileinfo_t *file; // the file we are in | |
| 116 | 71 } section_t; |
| 115 | 72 |
| 119 | 73 struct fileinfo_s |
| 115 | 74 { |
| 75 char *filename; | |
| 76 unsigned char *filedata; | |
| 77 long filesize; | |
| 116 | 78 section_t *sections; |
| 79 int nsections; | |
| 180 | 80 int islib; // set to true if the file is a "-l" option |
| 171 | 81 |
| 82 // "sub" files (like in archives or libraries) | |
| 83 int nsubs; | |
| 84 fileinfo_t **subs; | |
| 85 fileinfo_t *parent; | |
| 119 | 86 }; |
| 115 | 87 |
| 121 | 88 struct section_list |
| 89 { | |
| 90 section_t *ptr; // ptr to section structure | |
| 91 int forceaddr; // was this force to an address by the link script? | |
| 92 }; | |
| 93 | |
| 94 #ifndef __link_c_seen__ | |
| 95 extern struct section_list *sectlist; | |
| 96 extern int nsects; | |
| 97 #endif | |
| 116 | 98 |
| 99 | |
| 112 | 100 #ifndef __lwlink_c_seen__ |
| 101 | |
| 102 extern int debug_level; | |
| 103 extern int outformat; | |
| 104 extern char *outfile; | |
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105 extern int ninputfiles; |
| 115 | 106 extern fileinfo_t **inputfiles; |
| 117 | 107 extern char *scriptfile; |
| 112 | 108 |
| 180 | 109 extern int nlibdirs; |
| 110 extern char **libdirs; | |
| 111 | |
| 112 extern int nscriptls; | |
| 113 extern char **scriptls; | |
| 114 | |
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115 extern int symerr; |
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116 |
| 185 | 117 extern char *map_file; |
| 118 | |
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119 #define __lwlink_E__ extern |
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120 #else |
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121 #define __lwlink_E__ |
| 112 | 122 #endif // __lwlink_c_seen__ |
| 123 | |
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124 __lwlink_E__ void add_input_file(char *fn); |
| 180 | 125 __lwlink_E__ void add_input_library(char *fn); |
| 126 __lwlink_E__ void add_library_search(char *fn); | |
| 127 __lwlink_E__ void add_section_base(char *fn); | |
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128 |
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129 #undef __lwlink_E__ |
| 117 | 130 |
| 131 struct scriptline_s | |
| 132 { | |
| 133 char *sectname; // name of section, NULL for wildcard | |
| 134 int loadat; // address to load at (or -1) | |
| 135 int noflags; // flags to NOT have | |
| 136 int yesflags; // flags to HAVE | |
| 137 }; | |
| 138 | |
| 139 typedef struct | |
| 140 { | |
| 141 int nlines; // number of lines in the script | |
| 142 struct scriptline_s *lines; // the parsed script lines (section) | |
| 143 int padsize; // the size to pad to, -1 for none | |
| 121 | 144 char *execsym; // entry point symbol |
| 145 int execaddr; // execution address (entry point) | |
| 187 | 146 int stacksize; // stack size |
| 117 | 147 } linkscript_t; |
| 148 | |
| 149 #ifndef __script_c_seen__ | |
| 150 extern linkscript_t linkscript; | |
| 151 #endif | |
| 152 | |
| 112 | 153 #endif //__lwlink_h_seen__ |