FreeBSD/Linux Kernel Cross Reference
sys/kern/linker_if.m
1 #-
2 # Copyright (c) 2000 Doug Rabson
3 # All rights reserved.
4 #
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
7 # are met:
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 #
14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 # SUCH DAMAGE.
25 #
26 # $FreeBSD: releng/6.1/sys/kern/linker_if.m 158179 2006-04-30 16:44:43Z cvs2svn $
27 #
28
29 #include <sys/linker.h>
30
31 INTERFACE linker;
32
33 #
34 # Lookup a symbol in the file's symbol table. If the symbol is not
35 # found then return ENOENT, otherwise zero.
36 #
37 METHOD int lookup_symbol {
38 linker_file_t file;
39 const char* name;
40 c_linker_sym_t* symp;
41 };
42
43 METHOD int symbol_values {
44 linker_file_t file;
45 c_linker_sym_t sym;
46 linker_symval_t* valp;
47 };
48
49 METHOD int search_symbol {
50 linker_file_t file;
51 caddr_t value;
52 c_linker_sym_t* symp;
53 long* diffp;
54 };
55
56 #
57 # Call the callback with each specified function defined in the file.
58 # Stop and return the error if the callback returns an error.
59 #
60 METHOD int each_function_name {
61 linker_file_t file;
62 linker_function_name_callback_t callback;
63 void* opaque;
64 };
65
66 #
67 # Search for a linker set in a file. Return a pointer to the first
68 # entry (which is itself a pointer), and the number of entries.
69 # "stop" points to the entry beyond the last valid entry.
70 # If count, start or stop are NULL, they are not returned.
71 #
72 METHOD int lookup_set {
73 linker_file_t file;
74 const char* name;
75 void*** start;
76 void*** stop;
77 int* count;
78 };
79
80 #
81 # Unload a file, releasing dependancies and freeing storage.
82 #
83 METHOD void unload {
84 linker_file_t file;
85 };
86
87 #
88 # Load a file, returning the new linker_file_t in *result. If
89 # the class does not recognise the file type, zero should be
90 # returned, without modifying *result. If the file is
91 # recognised, the file should be loaded, *result set to the new
92 # file and zero returned. If some other error is detected an
93 # appropriate errno should be returned.
94 #
95 STATICMETHOD int load_file {
96 linker_class_t cls;
97 const char* filename;
98 linker_file_t* result;
99 };
100 STATICMETHOD int link_preload {
101 linker_class_t cls;
102 const char* filename;
103 linker_file_t* result;
104 };
105 METHOD int link_preload_finish {
106 linker_file_t file;
107 };
Cache object: ac83f609dece9a600735229fe508abd4
|