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annotate lwlink/lwlink.h @ 185:b89adfb0d174
Added support for outputting a linkmap
| author | lost |
|---|---|
| date | Sat, 21 Mar 2009 19:47:45 +0000 |
| parents | 220a760ec654 |
| children | 857cb407229e |
| 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 | |
| 31 | |
| 116 | 32 typedef struct symtab_s symtab_t; |
| 33 struct symtab_s | |
| 34 { | |
| 35 unsigned char *sym; // symbol name | |
| 36 int offset; // local offset | |
| 120 | 37 // int realval; // resolved value |
| 116 | 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 | |
| 119 | 49 typedef struct fileinfo_s fileinfo_t; |
| 50 | |
| 116 | 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 | |
| 119 | 59 int processed; // was the section processed yet? |
| 60 | |
| 116 | 61 symtab_t *localsyms; // local symbol table |
| 62 symtab_t *exportedsyms; // exported symbols table | |
| 63 | |
| 64 reloc_t *incompletes; // table of incomplete references | |
| 119 | 65 |
| 66 fileinfo_t *file; // the file we are in | |
| 116 | 67 } section_t; |
| 115 | 68 |
| 119 | 69 struct fileinfo_s |
| 115 | 70 { |
| 71 char *filename; | |
| 72 unsigned char *filedata; | |
| 73 long filesize; | |
| 116 | 74 section_t *sections; |
| 75 int nsections; | |
| 180 | 76 int islib; // set to true if the file is a "-l" option |
| 171 | 77 |
| 78 // "sub" files (like in archives or libraries) | |
| 79 int nsubs; | |
| 80 fileinfo_t **subs; | |
| 81 fileinfo_t *parent; | |
| 119 | 82 }; |
| 115 | 83 |
| 121 | 84 struct section_list |
| 85 { | |
| 86 section_t *ptr; // ptr to section structure | |
| 87 int forceaddr; // was this force to an address by the link script? | |
| 88 }; | |
| 89 | |
| 90 #ifndef __link_c_seen__ | |
| 91 extern struct section_list *sectlist; | |
| 92 extern int nsects; | |
| 93 #endif | |
| 116 | 94 |
| 95 | |
| 112 | 96 #ifndef __lwlink_c_seen__ |
| 97 | |
| 98 extern int debug_level; | |
| 99 extern int outformat; | |
| 100 extern char *outfile; | |
|
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101 extern int ninputfiles; |
| 115 | 102 extern fileinfo_t **inputfiles; |
| 117 | 103 extern char *scriptfile; |
| 112 | 104 |
| 180 | 105 extern int nlibdirs; |
| 106 extern char **libdirs; | |
| 107 | |
| 108 extern int nscriptls; | |
| 109 extern char **scriptls; | |
| 110 | |
|
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111 extern int symerr; |
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112 |
| 185 | 113 extern char *map_file; |
| 114 | |
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115 #define __lwlink_E__ extern |
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116 #else |
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117 #define __lwlink_E__ |
| 112 | 118 #endif // __lwlink_c_seen__ |
| 119 | |
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120 __lwlink_E__ void add_input_file(char *fn); |
| 180 | 121 __lwlink_E__ void add_input_library(char *fn); |
| 122 __lwlink_E__ void add_library_search(char *fn); | |
| 123 __lwlink_E__ void add_section_base(char *fn); | |
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124 |
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125 #undef __lwlink_E__ |
| 117 | 126 |
| 127 struct scriptline_s | |
| 128 { | |
| 129 char *sectname; // name of section, NULL for wildcard | |
| 130 int loadat; // address to load at (or -1) | |
| 131 int noflags; // flags to NOT have | |
| 132 int yesflags; // flags to HAVE | |
| 133 }; | |
| 134 | |
| 135 typedef struct | |
| 136 { | |
| 137 int nlines; // number of lines in the script | |
| 138 struct scriptline_s *lines; // the parsed script lines (section) | |
| 139 int padsize; // the size to pad to, -1 for none | |
| 121 | 140 char *execsym; // entry point symbol |
| 141 int execaddr; // execution address (entry point) | |
| 117 | 142 } linkscript_t; |
| 143 | |
| 144 #ifndef __script_c_seen__ | |
| 145 extern linkscript_t linkscript; | |
| 146 #endif | |
| 147 | |
| 112 | 148 #endif //__lwlink_h_seen__ |