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annotate src/lwlink.h @ 316:ba58dbe39c67 1.0
Branched for release 1.0
| author | lost |
|---|---|
| date | Tue, 27 Jan 2009 05:51:54 +0000 |
| parents | 13272197d278 |
| children |
| rev | line source |
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| 294 | 1 /* |
| 2 lwlink.h | |
| 300 | 3 Copyright © 2009 William Astle |
| 294 | 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 | |
| 298 | 27 #include "expr.h" |
| 28 | |
| 294 | 29 #define OUTPUT_DECB 0 // DECB multirecord format |
| 30 #define OUTPUT_RAW 1 // raw sequence of bytes | |
| 31 | |
| 298 | 32 typedef struct symtab_s symtab_t; |
| 33 struct symtab_s | |
| 34 { | |
| 35 unsigned char *sym; // symbol name | |
| 36 int offset; // local offset | |
| 302 | 37 // int realval; // resolved value |
| 298 | 38 symtab_t *next; // next symbol |
| 39 }; | |
| 40 | |
| 41 typedef struct reloc_s reloc_t; | |
| 42 struct reloc_s | |
| 43 { | |
| 44 int offset; // where in the section | |
| 45 lw_expr_stack_t *expr; // the expression to calculate it | |
| 46 reloc_t *next; // ptr to next relocation | |
| 47 }; | |
| 48 | |
| 301 | 49 typedef struct fileinfo_s fileinfo_t; |
| 50 | |
| 298 | 51 #define SECTION_BSS 1 |
| 52 typedef struct | |
| 53 { | |
| 54 unsigned char *name; // name of the section | |
| 55 int flags; // section flags | |
| 56 int codesize; // size of the code | |
| 57 unsigned char *code; // pointer to the code | |
| 58 int loadaddress; // the actual load address of the section | |
| 301 | 59 int processed; // was the section processed yet? |
| 60 | |
| 298 | 61 symtab_t *localsyms; // local symbol table |
| 62 symtab_t *exportedsyms; // exported symbols table | |
| 63 | |
| 64 reloc_t *incompletes; // table of incomplete references | |
| 301 | 65 |
| 66 fileinfo_t *file; // the file we are in | |
| 298 | 67 } section_t; |
| 297 | 68 |
| 301 | 69 struct fileinfo_s |
| 297 | 70 { |
| 71 char *filename; | |
| 72 unsigned char *filedata; | |
| 73 long filesize; | |
| 298 | 74 section_t *sections; |
| 75 int nsections; | |
| 76 | |
| 301 | 77 }; |
| 297 | 78 |
| 303 | 79 struct section_list |
| 80 { | |
| 81 section_t *ptr; // ptr to section structure | |
| 82 int forceaddr; // was this force to an address by the link script? | |
| 83 }; | |
| 84 | |
| 85 #ifndef __link_c_seen__ | |
| 86 extern struct section_list *sectlist; | |
| 87 extern int nsects; | |
| 88 #endif | |
| 298 | 89 |
| 90 | |
| 294 | 91 #ifndef __lwlink_c_seen__ |
| 92 | |
| 93 extern int debug_level; | |
| 94 extern int outformat; | |
| 95 extern char *outfile; | |
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96 extern int ninputfiles; |
| 297 | 97 extern fileinfo_t **inputfiles; |
| 299 | 98 extern char *scriptfile; |
| 294 | 99 |
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100 #define __lwlink_E__ extern |
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101 #else |
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102 #define __lwlink_E__ |
| 294 | 103 #endif // __lwlink_c_seen__ |
| 104 | |
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105 __lwlink_E__ void add_input_file(char *fn); |
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106 |
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107 #undef __lwlink_E__ |
| 299 | 108 |
| 109 struct scriptline_s | |
| 110 { | |
| 111 char *sectname; // name of section, NULL for wildcard | |
| 112 int loadat; // address to load at (or -1) | |
| 113 int noflags; // flags to NOT have | |
| 114 int yesflags; // flags to HAVE | |
| 115 }; | |
| 116 | |
| 117 typedef struct | |
| 118 { | |
| 119 int nlines; // number of lines in the script | |
| 120 struct scriptline_s *lines; // the parsed script lines (section) | |
| 121 int padsize; // the size to pad to, -1 for none | |
| 303 | 122 char *execsym; // entry point symbol |
| 123 int execaddr; // execution address (entry point) | |
| 299 | 124 } linkscript_t; |
| 125 | |
| 126 #ifndef __script_c_seen__ | |
| 127 extern linkscript_t linkscript; | |
| 128 #endif | |
| 129 | |
| 294 | 130 #endif //__lwlink_h_seen__ |