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annotate src/lwlink.h @ 301:376cc55361c7
section order and address resolution done
author | lost |
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date | Wed, 21 Jan 2009 05:45:25 +0000 |
parents | 48945dac8178 |
children | eff969272fb9 |
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 | |
37 int realval; // resolved value | |
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 |
298 | 79 |
80 | |
294 | 81 #ifndef __lwlink_c_seen__ |
82 | |
83 extern int debug_level; | |
84 extern int outformat; | |
85 extern char *outfile; | |
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86 extern int ninputfiles; |
297 | 87 extern fileinfo_t **inputfiles; |
299 | 88 extern char *scriptfile; |
294 | 89 |
296
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90 #define __lwlink_E__ extern |
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91 #else |
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92 #define __lwlink_E__ |
294 | 93 #endif // __lwlink_c_seen__ |
94 | |
296
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95 __lwlink_E__ void add_input_file(char *fn); |
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96 |
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97 #undef __lwlink_E__ |
299 | 98 |
99 struct scriptline_s | |
100 { | |
101 char *sectname; // name of section, NULL for wildcard | |
102 int loadat; // address to load at (or -1) | |
103 int noflags; // flags to NOT have | |
104 int yesflags; // flags to HAVE | |
105 }; | |
106 | |
107 typedef struct | |
108 { | |
109 int nlines; // number of lines in the script | |
110 struct scriptline_s *lines; // the parsed script lines (section) | |
111 int padsize; // the size to pad to, -1 for none | |
112 } linkscript_t; | |
113 | |
114 #ifndef __script_c_seen__ | |
115 extern linkscript_t linkscript; | |
116 #endif | |
117 | |
294 | 118 #endif //__lwlink_h_seen__ |