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comparison lwlink/lwlink.h @ 139:106c2fe3c9d9

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repo reorg
author lost
date Wed, 28 Jan 2009 05:59:14 +0000
parents lwlink-old/trunk/src/lwlink.h@050864a47b38
children d610b8aef91b
comparison
equal deleted inserted replaced
138:050864a47b38 139:106c2fe3c9d9
1 /*
2 lwlink.h
3 Copyright © 2009 William Astle
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
27 #include "expr.h"
28
29 #define OUTPUT_DECB 0 // DECB multirecord format
30 #define OUTPUT_RAW 1 // raw sequence of bytes
31
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
49 typedef struct fileinfo_s fileinfo_t;
50
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
59 int processed; // was the section processed yet?
60
61 symtab_t *localsyms; // local symbol table
62 symtab_t *exportedsyms; // exported symbols table
63
64 reloc_t *incompletes; // table of incomplete references
65
66 fileinfo_t *file; // the file we are in
67 } section_t;
68
69 struct fileinfo_s
70 {
71 char *filename;
72 unsigned char *filedata;
73 long filesize;
74 section_t *sections;
75 int nsections;
76
77 };
78
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
89
90
91 #ifndef __lwlink_c_seen__
92
93 extern int debug_level;
94 extern int outformat;
95 extern char *outfile;
96 extern int ninputfiles;
97 extern fileinfo_t **inputfiles;
98 extern char *scriptfile;
99
100 #define __lwlink_E__ extern
101 #else
102 #define __lwlink_E__
103 #endif // __lwlink_c_seen__
104
105 __lwlink_E__ void add_input_file(char *fn);
106
107 #undef __lwlink_E__
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
122 char *execsym; // entry point symbol
123 int execaddr; // execution address (entry point)
124 } linkscript_t;
125
126 #ifndef __script_c_seen__
127 extern linkscript_t linkscript;
128 #endif
129
130 #endif //__lwlink_h_seen__