2 # Copyright (c) 2000 Doug Rabson
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.
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
28 #include <sys/linker.h>
33 # Lookup a symbol in the file's symbol table. If the symbol is not
34 # found then return ENOENT, otherwise zero.
36 METHOD int lookup_symbol {
42 METHOD int lookup_debug_symbol {
48 METHOD int symbol_values {
51 linker_symval_t* valp;
54 METHOD int debug_symbol_values {
57 linker_symval_t* valp;
60 METHOD int search_symbol {
68 # Call the callback with each specified function defined in the file.
69 # Stop and return the error if the callback returns an error.
71 METHOD int each_function_name {
73 linker_function_name_callback_t callback;
78 # Call the callback with each specified function and it's value
79 # defined in the file.
80 # Stop and return the error if the callback returns an error.
82 METHOD int each_function_nameval {
84 linker_function_nameval_callback_t callback;
89 # Search for a linker set in a file. Return a pointer to the first
90 # entry (which is itself a pointer), and the number of entries.
91 # "stop" points to the entry beyond the last valid entry.
92 # If count, start or stop are NULL, they are not returned.
94 METHOD int lookup_set {
103 # Unload a file, releasing dependencies and freeing storage.
110 # Load CTF data if necessary and if there is a .SUNW_ctf section
111 # in the ELF file, returning info in the linker CTF structure.
119 # Look up a CTF type in the file's CTF section
120 # and return CTF info in the linker CTF structure.
121 # Return ENOENT if typename is not found, otherwise zero.
123 METHOD int ctf_lookup_typename {
126 const char *typename;
130 # Lookup a symbol in the file's symbol table and the file's CTF info.
131 # Return ENOENT if either the symbol or its CTF
132 # data is not loaded, otherwise return zero.
134 METHOD int lookup_debug_symbol_ctf {
142 # Get the symbol table, returning it in **symtab. Return the
143 # number of symbols, otherwise zero.
145 METHOD long symtab_get {
147 const Elf_Sym **symtab;
151 # Get the string table, returning it in *strtab. Return the
152 # size (in bytes) of the string table, otherwise zero.
154 METHOD long strtab_get {
160 # Load a file, returning the new linker_file_t in *result. If
161 # the class does not recognise the file type, zero should be
162 # returned, without modifying *result. If the file is
163 # recognised, the file should be loaded, *result set to the new
164 # file and zero returned. If some other error is detected an
165 # appropriate errno should be returned.
167 STATICMETHOD int load_file {
169 const char* filename;
170 linker_file_t* result;
172 STATICMETHOD int link_preload {
174 const char* filename;
175 linker_file_t* result;
177 METHOD int link_preload_finish {
183 # Propagate system tunable values to all vnets.
185 METHOD void propagate_vnets {