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annotate lwlink/lwlink.h @ 263:16c73b13ee0b 2.6 2.6
Branched for 2.6 release
| author | lost |
|---|---|
| date | Tue, 22 Dec 2009 05:25:53 +0000 |
| parents | e8d70b95ec41 |
| children |
| rev | line source |
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| 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 |
| 243 | 44 #define RELOC_0BIT 2 // don't actual stuff a reloc anywhere! |
| 116 | 45 typedef struct reloc_s reloc_t; |
| 46 struct reloc_s | |
| 47 { | |
| 48 int offset; // where in the section | |
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49 int flags; // flags for the relocation |
| 116 | 50 lw_expr_stack_t *expr; // the expression to calculate it |
| 51 reloc_t *next; // ptr to next relocation | |
| 52 }; | |
| 53 | |
| 119 | 54 typedef struct fileinfo_s fileinfo_t; |
| 55 | |
| 116 | 56 #define SECTION_BSS 1 |
| 57 typedef struct | |
| 58 { | |
| 59 unsigned char *name; // name of the section | |
| 60 int flags; // section flags | |
| 61 int codesize; // size of the code | |
| 62 unsigned char *code; // pointer to the code | |
| 63 int loadaddress; // the actual load address of the section | |
| 119 | 64 int processed; // was the section processed yet? |
| 65 | |
| 116 | 66 symtab_t *localsyms; // local symbol table |
| 67 symtab_t *exportedsyms; // exported symbols table | |
| 68 | |
| 69 reloc_t *incompletes; // table of incomplete references | |
| 119 | 70 |
| 71 fileinfo_t *file; // the file we are in | |
| 116 | 72 } section_t; |
| 115 | 73 |
| 119 | 74 struct fileinfo_s |
| 115 | 75 { |
| 76 char *filename; | |
| 77 unsigned char *filedata; | |
| 78 long filesize; | |
| 116 | 79 section_t *sections; |
| 80 int nsections; | |
| 180 | 81 int islib; // set to true if the file is a "-l" option |
| 171 | 82 |
| 205 | 83 int forced; // set to true if the file is a "forced" include |
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84 int resolves; // set to true if the file resolves a symbol |
| 205 | 85 |
| 171 | 86 // "sub" files (like in archives or libraries) |
| 87 int nsubs; | |
| 88 fileinfo_t **subs; | |
| 89 fileinfo_t *parent; | |
| 119 | 90 }; |
| 115 | 91 |
| 121 | 92 struct section_list |
| 93 { | |
| 94 section_t *ptr; // ptr to section structure | |
| 95 int forceaddr; // was this force to an address by the link script? | |
| 96 }; | |
| 97 | |
| 98 #ifndef __link_c_seen__ | |
| 99 extern struct section_list *sectlist; | |
| 100 extern int nsects; | |
| 101 #endif | |
| 116 | 102 |
| 103 | |
| 112 | 104 #ifndef __lwlink_c_seen__ |
| 105 | |
| 106 extern int debug_level; | |
| 107 extern int outformat; | |
| 108 extern char *outfile; | |
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109 extern int ninputfiles; |
| 115 | 110 extern fileinfo_t **inputfiles; |
| 117 | 111 extern char *scriptfile; |
| 112 | 112 |
| 180 | 113 extern int nlibdirs; |
| 114 extern char **libdirs; | |
| 115 | |
| 116 extern int nscriptls; | |
| 117 extern char **scriptls; | |
| 118 | |
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119 extern int symerr; |
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120 |
| 185 | 121 extern char *map_file; |
| 122 | |
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123 #define __lwlink_E__ extern |
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124 #else |
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125 #define __lwlink_E__ |
| 112 | 126 #endif // __lwlink_c_seen__ |
| 127 | |
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128 __lwlink_E__ void add_input_file(char *fn); |
| 180 | 129 __lwlink_E__ void add_input_library(char *fn); |
| 130 __lwlink_E__ void add_library_search(char *fn); | |
| 131 __lwlink_E__ void add_section_base(char *fn); | |
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132 |
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133 #undef __lwlink_E__ |
| 117 | 134 |
| 135 struct scriptline_s | |
| 136 { | |
| 137 char *sectname; // name of section, NULL for wildcard | |
| 138 int loadat; // address to load at (or -1) | |
| 139 int noflags; // flags to NOT have | |
| 140 int yesflags; // flags to HAVE | |
| 141 }; | |
| 142 | |
| 143 typedef struct | |
| 144 { | |
| 145 int nlines; // number of lines in the script | |
| 146 struct scriptline_s *lines; // the parsed script lines (section) | |
| 147 int padsize; // the size to pad to, -1 for none | |
| 121 | 148 char *execsym; // entry point symbol |
| 149 int execaddr; // execution address (entry point) | |
| 187 | 150 int stacksize; // stack size |
| 117 | 151 } linkscript_t; |
| 152 | |
| 153 #ifndef __script_c_seen__ | |
| 154 extern linkscript_t linkscript; | |
| 155 #endif | |
| 156 | |
| 112 | 157 #endif //__lwlink_h_seen__ |