2 * Copyright (c) 2006, Swedish Institute of Computer Science
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the Institute nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * @(#)$Id: cle.h,v 1.7 2007/06/04 17:47:56 bg- Exp $
36 * The Contiki dynamic Link Editor (CLE) for small systems.
39 /* These typedefs limits object file size! */
40 typedef u16_t cle_off
; /* Offset from start of file. */
41 typedef u16_t cle_word
;
42 typedef u16_t cle_half
;
44 /* Also used for address arithmetic (can't be void *). */
46 typedef uint32_t cle_addr
;
48 typedef uintptr_t cle_addr
;
51 typedef char cle_scratch
[32];
57 cle_off textrelaoff
, datarelaoff
;
58 cle_word textrelasize
, datarelasize
;
60 cle_off textoff
, dataoff
;
61 cle_word textsize
, datasize
, bsssize
;
63 cle_off symtaboff
, strtaboff
;
66 unsigned char text_shndx
;
67 unsigned char data_shndx
;
68 unsigned char bss_shndx
;
69 unsigned char unused_shndx
;
71 cle_scratch name
; /* Scratch and errmsg buffer. */
75 cle_read_info(struct cle_info
*info
,
76 int (*read
)(void *, int, off_t
),
77 off_t hdr
); /* Offset to start of file. */
80 cle_relocate(struct cle_info
*info
,
81 int (*read
)(void *, int, off_t
),
82 off_t hdr
, /* Offset to start of file. */
83 void *segmem
, /* Where segment is stored in memory. */
84 cle_off reloff
, /* .rela.<segment> start */
85 cle_word relsize
); /* .rela.<segment> size */
88 cle_lookup(struct cle_info
*info
,
89 int (*read
)(void *, int, off_t
),
90 off_t hdr
, /* Offset to start of file. */
93 struct elf32_rela
; /* Struct forward decl. */
95 int cle_write_reloc(void *,
96 const struct elf32_rela
*,
98 const struct cle_info
*);
101 * Error codes that apply in general to linking and loading.
104 #define CLE_BAD_HEADER 1
105 #define CLE_NO_SYMTAB 2
106 #define CLE_NO_STRTAB 3
107 #define CLE_NO_TEXT 4
108 #define CLE_UNDEFINED 5
109 #define CLE_UNKNOWN_SEGMENT 6
110 #define CLE_NO_STARTPOINT 7
111 #define CLE_TEXT_TO_LARGE 8
112 #define CLE_DATA_TO_LARGE 9
113 #define CLE_UNKNOWN_RELOC 10
114 #define CLE_MULTIPLY_DEFINED 11