mirror of
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This is the new link.h from Paul K. Keeping history is even probably a bad
idea considering the old version (but I haven't time for attic surgery - this is just a caution). This is part of (and the major reason for) the new ld changes.
This commit is contained in:
Jordan K. Hubbard
parent
7883064ac0
commit
a70c96594a
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=1156
233
include/link.h
233
include/link.h
@ -1,49 +1,77 @@
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/*
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* Copyright (c) 1993 Paul Kranenburg
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Paul Kranenburg.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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/*
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* RRS section definitions.
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* Nomenclature and, more importantly, the layout of the various
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* data structures defined in this header file are borrowed from
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* Sun Microsystems' original <link.h>, so we can provide compatibility
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* with the SunOS 4.x shared library scheme.
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*
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* $Id: link.h,v 1.2 1993/10/22 21:04:19 pk Exp $
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* (derived from: @(#)link.h 1.6 88/08/19 SMI
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* Copyright (c) 1987 by Sun Microsystems, Inc.)
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* The layout of some data structures defined in this header file is
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* such that we can provide compatibility with the SunOS 4.x shared
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* library scheme.
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*/
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#ifndef _LINK_H_
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#define _LINK_H_
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/*
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* A `link_object' structure descibes a shared object that is needed
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* A `Shared Object Descriptor' descibes a shared object that is needed
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* to complete the link edit process of the object containing it.
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* A list of such objects (chained through `lo_next') is pointed at
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* by `ld_need' in the link_dynamic_2 structure.
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* A list of such objects (chained through `sod_next') is pointed at
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* by `sdt_sods' in the section_dispatch_table structure.
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*/
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struct link_object {
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long lo_name; /* name (relative to load address) */
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u_int lo_library : 1, /* searched for by library rules */
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lo_unused : 31;
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short lo_major; /* major version number */
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short lo_minor; /* minor version number */
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long lo_next; /* next one (often relative) */
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struct sod { /* Shared Object Descriptor */
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long sod_name; /* name (relative to load address) */
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u_int sod_library : 1, /* Searched for by library rules */
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sod_reserved : 31;
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short sod_major; /* major version number */
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short sod_minor; /* minor version number */
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long sod_next; /* next sod */
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};
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/*
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* `link_maps' are used by the run-time link editor (ld.so) to keep
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* track of all shared objects loaded into a process' address space.
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* `Shared Object Map's are used by the run-time link editor (ld.so) to
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* keep track of all shared objects loaded into a process' address space.
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* These structures are only used at run-time and do not occur within
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* the text or data segment of an executable or shared library.
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*/
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struct link_map {
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caddr_t lm_addr; /* address at which object mapped */
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char *lm_name; /* full name of loaded object */
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struct link_map *lm_next; /* next object in map */
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struct link_object *lm_lop; /* link object that got us here */
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caddr_t lm_lob; /* base address for said link object */
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u_int lm_rwt : 1; /* text is read/write */
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struct link_dynamic *lm_ld; /* dynamic structure */
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caddr_t lm_lpd; /* loader private data */
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struct so_map { /* Shared Object Map */
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caddr_t som_addr; /* Address at which object mapped */
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char *som_path; /* Path to mmap'ed file */
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struct so_map *som_next; /* Next map in chain */
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struct sod *som_sod; /* Sod responsible for this map */
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caddr_t som_sodbase; /* Base address of this sod */
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u_int som_write : 1; /* Text is currently writable */
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struct _dynamic *som_dynamic; /* _dynamic structure */
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caddr_t som_spd; /* Private data */
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};
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/*
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@ -51,7 +79,7 @@ struct link_map {
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* one field (nz_size) added.
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* Used to convey size information on items in the data segment
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* of shared objects. An array of these live in the shared object's
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* text segment and is address by the `ld_symbols' field.
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* text segment and is addressed by the `sdt_nzlist' field.
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*/
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struct nzlist {
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struct nlist nlist;
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@ -65,37 +93,45 @@ struct nzlist {
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#define nz_other nlist.n_other
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};
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#define N_AUX(p) ((p)->n_other & 0xf)
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#define N_RESERVED(p) (((unsigned int)(p)->n_other >> 4) & 0xf)
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#define N_OTHER(r, v) (((unsigned int)(r) << 4) | ((v) & 0xf))
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#define AUX_OBJECT 1
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#define AUX_FUNC 2
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/*
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* The `link_dynamic_2' structure contains offsets to various data
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* The `section_dispatch_table' structure contains offsets to various data
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* structures needed to do run-time relocation.
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*/
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struct link_dynamic_2 {
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struct link_map *ld_loaded; /* list of loaded objects */
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long ld_need; /* list of needed objects */
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long ld_rules; /* search rules for library objects */
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long ld_got; /* global offset table */
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long ld_plt; /* procedure linkage table */
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long ld_rel; /* relocation table */
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long ld_hash; /* symbol hash table */
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long ld_symbols; /* symbol table itself */
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long (*ld_stab_hash)(); /* "pointer" to symbol hash function */
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long ld_buckets; /* number of hash buckets */
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long ld_strings; /* symbol strings */
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long ld_str_sz; /* size of symbol strings */
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long ld_text_sz; /* size of text area */
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long ld_plt_sz; /* size of procedure linkage table */
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struct section_dispatch_table {
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struct so_map *sdt_loaded; /* List of loaded objects */
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long sdt_sods; /* List of shared objects descriptors */
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long sdt_filler1; /* Unused (was: search rules) */
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long sdt_got; /* Global offset table */
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long sdt_plt; /* Procedure linkage table */
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long sdt_rel; /* Relocation table */
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long sdt_hash; /* Symbol hash table */
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long sdt_nzlist; /* Symbol table itself */
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long sdt_filler2; /* Unused (was: stab_hash) */
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long sdt_buckets; /* Number of hash buckets */
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long sdt_strings; /* Symbol strings */
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long sdt_str_sz; /* Size of symbol strings */
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long sdt_text_sz; /* Size of text area */
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long sdt_plt_sz; /* Size of procedure linkage table */
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};
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/*
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* RRS symbol hash table, addressed by `ld_hash' in link_dynamic_2
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* RRS symbol hash table, addressed by `sdt_hash' in section_dispatch_table.
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* Used to quickly lookup symbols of the shared object by hashing
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* on the symbol's name. `rh_symbolnum' is the index of the symbol
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* in the shared object's symbol list (`ld_symbols'), `rh_next' is
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* in the shared object's symbol list (`sdt_nzlist'), `rh_next' is
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* the next symbol in the hash bucket (in case of collisions).
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*/
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struct rrs_hash {
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int rh_symbolnum; /* symbol number */
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int rh_next; /* next hash entry */
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int rh_symbolnum; /* Symbol number */
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int rh_next; /* Next hash entry */
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};
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/*
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@ -103,86 +139,103 @@ struct rrs_hash {
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* and data items copied from shared objects.
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*/
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struct rt_symbol {
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struct nzlist *rt_sp; /* the symbol */
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struct rt_symbol *rt_next; /* next in linear list */
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struct rt_symbol *rt_link; /* next in bucket */
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caddr_t rt_srcaddr; /* address of "master" copy */
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struct nzlist *rt_sp; /* The symbol */
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struct rt_symbol *rt_next; /* Next in linear list */
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struct rt_symbol *rt_link; /* Next in bucket */
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caddr_t rt_srcaddr; /* Address of "master" copy */
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struct so_map *rt_smp; /* Originating map */
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};
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/*
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* Debugger interface structure.
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*/
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struct ld_debug {
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int ldd_version; /* version # of interface */
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int ldd_in_debugger; /* a debugger is running us */
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int ldd_sym_loaded; /* we loaded some symbols */
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char *ldd_bp_addr; /* place for ld-generated bpt */
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int ldd_bp_inst; /* instruction which was there */
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struct rt_symbol *ldd_cp; /* commons we built */
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struct so_debug {
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int dd_version; /* Version # of interface */
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int dd_in_debugger; /* Set when run by debugger */
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int dd_sym_loaded; /* Run-time linking brought more
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symbols into scope */
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char *dd_bpt_addr; /* Address of rtld-generated bpt */
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int dd_bpt_shadow; /* Original contents of bpt */
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struct rt_symbol *dd_cc; /* Allocated commons/copied data */
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};
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/*
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* Entry points into ld.so - user interface to the run-time linker.
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* (see also libdl.a)
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*/
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struct ld_entry {
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int (*dlopen)();
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int (*dlclose)();
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int (*dlsym)();
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void *(*dlopen) __P((char *, int));
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int (*dlclose) __P((void *));
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void *(*dlsym) __P((void *, char *));
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int (*dlctl) __P((void *, int, void *));
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};
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/*
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* dlctl() commands
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*/
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#define DL_GETERRNO 1
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/*
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* dl*() prototypes.
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*/
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extern void *dlopen __P((char *, int));
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extern int dlclose __P((void *));
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extern void *dlsym __P((void *, char *));
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extern int dlctl __P((void *, int, void *));
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/*
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* This is the structure pointed at by the __DYNAMIC symbol if an
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* executable requires the attention of the run-time link editor.
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* __DYNAMIC is given the value zero if no run-time linking needs to
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* be done (it is always present in shared objects).
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* The union `ld_un' provides for different versions of the dynamic
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* linking mechanism (switched on by `ld_version'). The last version
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* The union `d_un' provides for different versions of the dynamic
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* linking mechanism (switched on by `d_version'). The last version
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* used by Sun is 3. We leave some room here and go to version number
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* 8 for NetBSD, the main difference lying in the support for the
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* `nz_list' type of symbols.
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*/
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struct link_dynamic {
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int ld_version; /* version # of this structure */
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struct ld_debug *ldd;
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struct _dynamic {
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int d_version; /* version # of this interface */
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struct so_debug *d_debug;
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union {
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struct link_dynamic_2 *ld_2;
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} ld_un;
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struct ld_entry *ld_entry;
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struct section_dispatch_table *d_sdt;
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} d_un;
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struct ld_entry *d_entry;
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};
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#define LD_VERSION_SUN (3)
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#define LD_VERSION_BSD (8)
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#define LD_VERSION_NZLIST_P(v) ((v) >= 8)
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#define LD_GOT(x) ((x)->ld_un.ld_2->ld_got)
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#define LD_PLT(x) ((x)->ld_un.ld_2->ld_plt)
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#define LD_REL(x) ((x)->ld_un.ld_2->ld_rel)
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#define LD_SYMBOL(x) ((x)->ld_un.ld_2->ld_symbols)
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#define LD_HASH(x) ((x)->ld_un.ld_2->ld_hash)
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#define LD_STRINGS(x) ((x)->ld_un.ld_2->ld_strings)
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#define LD_NEED(x) ((x)->ld_un.ld_2->ld_need)
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#define LD_BUCKETS(x) ((x)->ld_un.ld_2->ld_buckets)
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#define LD_GOT(x) ((x)->d_un.d_sdt->sdt_got)
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#define LD_PLT(x) ((x)->d_un.d_sdt->sdt_plt)
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#define LD_REL(x) ((x)->d_un.d_sdt->sdt_rel)
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#define LD_SYMBOL(x) ((x)->d_un.d_sdt->sdt_nzlist)
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#define LD_HASH(x) ((x)->d_un.d_sdt->sdt_hash)
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#define LD_STRINGS(x) ((x)->d_un.d_sdt->sdt_strings)
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#define LD_NEED(x) ((x)->d_un.d_sdt->sdt_sods)
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#define LD_BUCKETS(x) ((x)->d_un.d_sdt->sdt_buckets)
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#define LD_GOTSZ(x) ((x)->ld_un.ld_2->ld_plt - (x)->ld_un.ld_2->ld_got)
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#define LD_RELSZ(x) ((x)->ld_un.ld_2->ld_hash - (x)->ld_un.ld_2->ld_rel)
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#define LD_HASHSZ(x) ((x)->ld_un.ld_2->ld_symbols - (x)->ld_un.ld_2->ld_hash)
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#define LD_STABSZ(x) ((x)->ld_un.ld_2->ld_strings - (x)->ld_un.ld_2->ld_symbols)
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#define LD_PLTSZ(x) ((x)->ld_un.ld_2->ld_plt_sz)
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#define LD_STRSZ(x) ((x)->ld_un.ld_2->ld_str_sz)
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#define LD_TEXTSZ(x) ((x)->ld_un.ld_2->ld_text_sz)
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#define LD_GOTSZ(x) ((x)->d_un.d_sdt->sdt_plt - (x)->d_un.d_sdt->sdt_got)
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#define LD_RELSZ(x) ((x)->d_un.d_sdt->sdt_hash - (x)->d_un.d_sdt->sdt_rel)
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#define LD_HASHSZ(x) ((x)->d_un.d_sdt->sdt_nzlist - (x)->d_un.d_sdt->sdt_hash)
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#define LD_STABSZ(x) ((x)->d_un.d_sdt->sdt_strings - (x)->d_un.d_sdt->sdt_nzlist)
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#define LD_PLTSZ(x) ((x)->d_un.d_sdt->sdt_plt_sz)
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#define LD_STRSZ(x) ((x)->d_un.d_sdt->sdt_str_sz)
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#define LD_TEXTSZ(x) ((x)->d_un.d_sdt->sdt_text_sz)
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/*
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* Interface to ld.so (see link(5))
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* Interface to ld.so
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*/
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struct crt_ldso {
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int crt_ba; /* Base address of ld.so */
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int crt_dzfd; /* "/dev/zero" file decriptor (SunOS) */
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int crt_ldfd; /* ld.so file descriptor */
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struct link_dynamic *crt_dp;/* Main's __DYNAMIC */
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struct _dynamic *crt_dp; /* Main's __DYNAMIC */
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char **crt_ep; /* environment strings */
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caddr_t crt_bp; /* Breakpoint if run from debugger */
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char *crt_prog; /* Program name */
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};
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/*
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@ -190,6 +243,8 @@ struct crt_ldso {
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*/
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#define CRT_VERSION_SUN 1
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#define CRT_VERSION_BSD 2
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#define CRT_VERSION_BSD_2 2
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#define CRT_VERSION_BSD_3 3
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/*
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@ -1,49 +1,77 @@
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/*
|
||||
* Copyright (c) 1993 Paul Kranenburg
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Paul Kranenburg.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software withough specific prior written permission
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/*
|
||||
* RRS section definitions.
|
||||
* Nomenclature and, more importantly, the layout of the various
|
||||
* data structures defined in this header file are borrowed from
|
||||
* Sun Microsystems' original <link.h>, so we can provide compatibility
|
||||
* with the SunOS 4.x shared library scheme.
|
||||
*
|
||||
* $Id: link.h,v 1.2 1993/10/22 21:04:19 pk Exp $
|
||||
* (derived from: @(#)link.h 1.6 88/08/19 SMI
|
||||
* Copyright (c) 1987 by Sun Microsystems, Inc.)
|
||||
* The layout of some data structures defined in this header file is
|
||||
* such that we can provide compatibility with the SunOS 4.x shared
|
||||
* library scheme.
|
||||
*/
|
||||
|
||||
#ifndef _LINK_H_
|
||||
#define _LINK_H_
|
||||
|
||||
/*
|
||||
* A `link_object' structure descibes a shared object that is needed
|
||||
* A `Shared Object Descriptor' descibes a shared object that is needed
|
||||
* to complete the link edit process of the object containing it.
|
||||
* A list of such objects (chained through `lo_next') is pointed at
|
||||
* by `ld_need' in the link_dynamic_2 structure.
|
||||
* A list of such objects (chained through `sod_next') is pointed at
|
||||
* by `sdt_sods' in the section_dispatch_table structure.
|
||||
*/
|
||||
|
||||
struct link_object {
|
||||
long lo_name; /* name (relative to load address) */
|
||||
u_int lo_library : 1, /* searched for by library rules */
|
||||
lo_unused : 31;
|
||||
short lo_major; /* major version number */
|
||||
short lo_minor; /* minor version number */
|
||||
long lo_next; /* next one (often relative) */
|
||||
struct sod { /* Shared Object Descriptor */
|
||||
long sod_name; /* name (relative to load address) */
|
||||
u_int sod_library : 1, /* Searched for by library rules */
|
||||
sod_reserved : 31;
|
||||
short sod_major; /* major version number */
|
||||
short sod_minor; /* minor version number */
|
||||
long sod_next; /* next sod */
|
||||
};
|
||||
|
||||
/*
|
||||
* `link_maps' are used by the run-time link editor (ld.so) to keep
|
||||
* track of all shared objects loaded into a process' address space.
|
||||
* `Shared Object Map's are used by the run-time link editor (ld.so) to
|
||||
* keep track of all shared objects loaded into a process' address space.
|
||||
* These structures are only used at run-time and do not occur within
|
||||
* the text or data segment of an executable or shared library.
|
||||
*/
|
||||
struct link_map {
|
||||
caddr_t lm_addr; /* address at which object mapped */
|
||||
char *lm_name; /* full name of loaded object */
|
||||
struct link_map *lm_next; /* next object in map */
|
||||
struct link_object *lm_lop; /* link object that got us here */
|
||||
caddr_t lm_lob; /* base address for said link object */
|
||||
u_int lm_rwt : 1; /* text is read/write */
|
||||
struct link_dynamic *lm_ld; /* dynamic structure */
|
||||
caddr_t lm_lpd; /* loader private data */
|
||||
struct so_map { /* Shared Object Map */
|
||||
caddr_t som_addr; /* Address at which object mapped */
|
||||
char *som_path; /* Path to mmap'ed file */
|
||||
struct so_map *som_next; /* Next map in chain */
|
||||
struct sod *som_sod; /* Sod responsible for this map */
|
||||
caddr_t som_sodbase; /* Base address of this sod */
|
||||
u_int som_write : 1; /* Text is currently writable */
|
||||
struct _dynamic *som_dynamic; /* _dynamic structure */
|
||||
caddr_t som_spd; /* Private data */
|
||||
};
|
||||
|
||||
/*
|
||||
@ -51,7 +79,7 @@ struct link_map {
|
||||
* one field (nz_size) added.
|
||||
* Used to convey size information on items in the data segment
|
||||
* of shared objects. An array of these live in the shared object's
|
||||
* text segment and is address by the `ld_symbols' field.
|
||||
* text segment and is addressed by the `sdt_nzlist' field.
|
||||
*/
|
||||
struct nzlist {
|
||||
struct nlist nlist;
|
||||
@ -65,37 +93,45 @@ struct nzlist {
|
||||
#define nz_other nlist.n_other
|
||||
};
|
||||
|
||||
#define N_AUX(p) ((p)->n_other & 0xf)
|
||||
#define N_RESERVED(p) (((unsigned int)(p)->n_other >> 4) & 0xf)
|
||||
#define N_OTHER(r, v) (((unsigned int)(r) << 4) | ((v) & 0xf))
|
||||
|
||||
#define AUX_OBJECT 1
|
||||
#define AUX_FUNC 2
|
||||
|
||||
|
||||
/*
|
||||
* The `link_dynamic_2' structure contains offsets to various data
|
||||
* The `section_dispatch_table' structure contains offsets to various data
|
||||
* structures needed to do run-time relocation.
|
||||
*/
|
||||
struct link_dynamic_2 {
|
||||
struct link_map *ld_loaded; /* list of loaded objects */
|
||||
long ld_need; /* list of needed objects */
|
||||
long ld_rules; /* search rules for library objects */
|
||||
long ld_got; /* global offset table */
|
||||
long ld_plt; /* procedure linkage table */
|
||||
long ld_rel; /* relocation table */
|
||||
long ld_hash; /* symbol hash table */
|
||||
long ld_symbols; /* symbol table itself */
|
||||
long (*ld_stab_hash)(); /* "pointer" to symbol hash function */
|
||||
long ld_buckets; /* number of hash buckets */
|
||||
long ld_strings; /* symbol strings */
|
||||
long ld_str_sz; /* size of symbol strings */
|
||||
long ld_text_sz; /* size of text area */
|
||||
long ld_plt_sz; /* size of procedure linkage table */
|
||||
struct section_dispatch_table {
|
||||
struct so_map *sdt_loaded; /* List of loaded objects */
|
||||
long sdt_sods; /* List of shared objects descriptors */
|
||||
long sdt_filler1; /* Unused (was: search rules) */
|
||||
long sdt_got; /* Global offset table */
|
||||
long sdt_plt; /* Procedure linkage table */
|
||||
long sdt_rel; /* Relocation table */
|
||||
long sdt_hash; /* Symbol hash table */
|
||||
long sdt_nzlist; /* Symbol table itself */
|
||||
long sdt_filler2; /* Unused (was: stab_hash) */
|
||||
long sdt_buckets; /* Number of hash buckets */
|
||||
long sdt_strings; /* Symbol strings */
|
||||
long sdt_str_sz; /* Size of symbol strings */
|
||||
long sdt_text_sz; /* Size of text area */
|
||||
long sdt_plt_sz; /* Size of procedure linkage table */
|
||||
};
|
||||
|
||||
/*
|
||||
* RRS symbol hash table, addressed by `ld_hash' in link_dynamic_2
|
||||
* RRS symbol hash table, addressed by `sdt_hash' in section_dispatch_table.
|
||||
* Used to quickly lookup symbols of the shared object by hashing
|
||||
* on the symbol's name. `rh_symbolnum' is the index of the symbol
|
||||
* in the shared object's symbol list (`ld_symbols'), `rh_next' is
|
||||
* in the shared object's symbol list (`sdt_nzlist'), `rh_next' is
|
||||
* the next symbol in the hash bucket (in case of collisions).
|
||||
*/
|
||||
struct rrs_hash {
|
||||
int rh_symbolnum; /* symbol number */
|
||||
int rh_next; /* next hash entry */
|
||||
int rh_symbolnum; /* Symbol number */
|
||||
int rh_next; /* Next hash entry */
|
||||
};
|
||||
|
||||
/*
|
||||
@ -103,86 +139,103 @@ struct rrs_hash {
|
||||
* and data items copied from shared objects.
|
||||
*/
|
||||
struct rt_symbol {
|
||||
struct nzlist *rt_sp; /* the symbol */
|
||||
struct rt_symbol *rt_next; /* next in linear list */
|
||||
struct rt_symbol *rt_link; /* next in bucket */
|
||||
caddr_t rt_srcaddr; /* address of "master" copy */
|
||||
struct nzlist *rt_sp; /* The symbol */
|
||||
struct rt_symbol *rt_next; /* Next in linear list */
|
||||
struct rt_symbol *rt_link; /* Next in bucket */
|
||||
caddr_t rt_srcaddr; /* Address of "master" copy */
|
||||
struct so_map *rt_smp; /* Originating map */
|
||||
};
|
||||
|
||||
/*
|
||||
* Debugger interface structure.
|
||||
*/
|
||||
struct ld_debug {
|
||||
int ldd_version; /* version # of interface */
|
||||
int ldd_in_debugger; /* a debugger is running us */
|
||||
int ldd_sym_loaded; /* we loaded some symbols */
|
||||
char *ldd_bp_addr; /* place for ld-generated bpt */
|
||||
int ldd_bp_inst; /* instruction which was there */
|
||||
struct rt_symbol *ldd_cp; /* commons we built */
|
||||
struct so_debug {
|
||||
int dd_version; /* Version # of interface */
|
||||
int dd_in_debugger; /* Set when run by debugger */
|
||||
int dd_sym_loaded; /* Run-time linking brought more
|
||||
symbols into scope */
|
||||
char *dd_bpt_addr; /* Address of rtld-generated bpt */
|
||||
int dd_bpt_shadow; /* Original contents of bpt */
|
||||
struct rt_symbol *dd_cc; /* Allocated commons/copied data */
|
||||
};
|
||||
|
||||
/*
|
||||
* Entry points into ld.so - user interface to the run-time linker.
|
||||
* (see also libdl.a)
|
||||
*/
|
||||
struct ld_entry {
|
||||
int (*dlopen)();
|
||||
int (*dlclose)();
|
||||
int (*dlsym)();
|
||||
void *(*dlopen) __P((char *, int));
|
||||
int (*dlclose) __P((void *));
|
||||
void *(*dlsym) __P((void *, char *));
|
||||
int (*dlctl) __P((void *, int, void *));
|
||||
};
|
||||
|
||||
/*
|
||||
* dlctl() commands
|
||||
*/
|
||||
#define DL_GETERRNO 1
|
||||
|
||||
/*
|
||||
* dl*() prototypes.
|
||||
*/
|
||||
extern void *dlopen __P((char *, int));
|
||||
extern int dlclose __P((void *));
|
||||
extern void *dlsym __P((void *, char *));
|
||||
extern int dlctl __P((void *, int, void *));
|
||||
|
||||
|
||||
/*
|
||||
* This is the structure pointed at by the __DYNAMIC symbol if an
|
||||
* executable requires the attention of the run-time link editor.
|
||||
* __DYNAMIC is given the value zero if no run-time linking needs to
|
||||
* be done (it is always present in shared objects).
|
||||
* The union `ld_un' provides for different versions of the dynamic
|
||||
* linking mechanism (switched on by `ld_version'). The last version
|
||||
* The union `d_un' provides for different versions of the dynamic
|
||||
* linking mechanism (switched on by `d_version'). The last version
|
||||
* used by Sun is 3. We leave some room here and go to version number
|
||||
* 8 for NetBSD, the main difference lying in the support for the
|
||||
* `nz_list' type of symbols.
|
||||
*/
|
||||
|
||||
struct link_dynamic {
|
||||
int ld_version; /* version # of this structure */
|
||||
struct ld_debug *ldd;
|
||||
struct _dynamic {
|
||||
int d_version; /* version # of this interface */
|
||||
struct so_debug *d_debug;
|
||||
union {
|
||||
struct link_dynamic_2 *ld_2;
|
||||
} ld_un;
|
||||
struct ld_entry *ld_entry;
|
||||
struct section_dispatch_table *d_sdt;
|
||||
} d_un;
|
||||
struct ld_entry *d_entry;
|
||||
};
|
||||
|
||||
#define LD_VERSION_SUN (3)
|
||||
#define LD_VERSION_BSD (8)
|
||||
#define LD_VERSION_NZLIST_P(v) ((v) >= 8)
|
||||
|
||||
#define LD_GOT(x) ((x)->ld_un.ld_2->ld_got)
|
||||
#define LD_PLT(x) ((x)->ld_un.ld_2->ld_plt)
|
||||
#define LD_REL(x) ((x)->ld_un.ld_2->ld_rel)
|
||||
#define LD_SYMBOL(x) ((x)->ld_un.ld_2->ld_symbols)
|
||||
#define LD_HASH(x) ((x)->ld_un.ld_2->ld_hash)
|
||||
#define LD_STRINGS(x) ((x)->ld_un.ld_2->ld_strings)
|
||||
#define LD_NEED(x) ((x)->ld_un.ld_2->ld_need)
|
||||
#define LD_BUCKETS(x) ((x)->ld_un.ld_2->ld_buckets)
|
||||
#define LD_GOT(x) ((x)->d_un.d_sdt->sdt_got)
|
||||
#define LD_PLT(x) ((x)->d_un.d_sdt->sdt_plt)
|
||||
#define LD_REL(x) ((x)->d_un.d_sdt->sdt_rel)
|
||||
#define LD_SYMBOL(x) ((x)->d_un.d_sdt->sdt_nzlist)
|
||||
#define LD_HASH(x) ((x)->d_un.d_sdt->sdt_hash)
|
||||
#define LD_STRINGS(x) ((x)->d_un.d_sdt->sdt_strings)
|
||||
#define LD_NEED(x) ((x)->d_un.d_sdt->sdt_sods)
|
||||
#define LD_BUCKETS(x) ((x)->d_un.d_sdt->sdt_buckets)
|
||||
|
||||
#define LD_GOTSZ(x) ((x)->ld_un.ld_2->ld_plt - (x)->ld_un.ld_2->ld_got)
|
||||
#define LD_RELSZ(x) ((x)->ld_un.ld_2->ld_hash - (x)->ld_un.ld_2->ld_rel)
|
||||
#define LD_HASHSZ(x) ((x)->ld_un.ld_2->ld_symbols - (x)->ld_un.ld_2->ld_hash)
|
||||
#define LD_STABSZ(x) ((x)->ld_un.ld_2->ld_strings - (x)->ld_un.ld_2->ld_symbols)
|
||||
#define LD_PLTSZ(x) ((x)->ld_un.ld_2->ld_plt_sz)
|
||||
#define LD_STRSZ(x) ((x)->ld_un.ld_2->ld_str_sz)
|
||||
#define LD_TEXTSZ(x) ((x)->ld_un.ld_2->ld_text_sz)
|
||||
#define LD_GOTSZ(x) ((x)->d_un.d_sdt->sdt_plt - (x)->d_un.d_sdt->sdt_got)
|
||||
#define LD_RELSZ(x) ((x)->d_un.d_sdt->sdt_hash - (x)->d_un.d_sdt->sdt_rel)
|
||||
#define LD_HASHSZ(x) ((x)->d_un.d_sdt->sdt_nzlist - (x)->d_un.d_sdt->sdt_hash)
|
||||
#define LD_STABSZ(x) ((x)->d_un.d_sdt->sdt_strings - (x)->d_un.d_sdt->sdt_nzlist)
|
||||
#define LD_PLTSZ(x) ((x)->d_un.d_sdt->sdt_plt_sz)
|
||||
#define LD_STRSZ(x) ((x)->d_un.d_sdt->sdt_str_sz)
|
||||
#define LD_TEXTSZ(x) ((x)->d_un.d_sdt->sdt_text_sz)
|
||||
|
||||
/*
|
||||
* Interface to ld.so (see link(5))
|
||||
* Interface to ld.so
|
||||
*/
|
||||
struct crt_ldso {
|
||||
int crt_ba; /* Base address of ld.so */
|
||||
int crt_dzfd; /* "/dev/zero" file decriptor (SunOS) */
|
||||
int crt_ldfd; /* ld.so file descriptor */
|
||||
struct link_dynamic *crt_dp;/* Main's __DYNAMIC */
|
||||
struct _dynamic *crt_dp; /* Main's __DYNAMIC */
|
||||
char **crt_ep; /* environment strings */
|
||||
caddr_t crt_bp; /* Breakpoint if run from debugger */
|
||||
char *crt_prog; /* Program name */
|
||||
};
|
||||
|
||||
/*
|
||||
@ -190,6 +243,8 @@ struct crt_ldso {
|
||||
*/
|
||||
#define CRT_VERSION_SUN 1
|
||||
#define CRT_VERSION_BSD 2
|
||||
#define CRT_VERSION_BSD_2 2
|
||||
#define CRT_VERSION_BSD_3 3
|
||||
|
||||
|
||||
/*
|
||||
|
||||
@ -1,49 +1,77 @@
|
||||
/*
|
||||
* Copyright (c) 1993 Paul Kranenburg
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Paul Kranenburg.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software withough specific prior written permission
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
/*
|
||||
* RRS section definitions.
|
||||
* Nomenclature and, more importantly, the layout of the various
|
||||
* data structures defined in this header file are borrowed from
|
||||
* Sun Microsystems' original <link.h>, so we can provide compatibility
|
||||
* with the SunOS 4.x shared library scheme.
|
||||
*
|
||||
* $Id: link.h,v 1.2 1993/10/22 21:04:19 pk Exp $
|
||||
* (derived from: @(#)link.h 1.6 88/08/19 SMI
|
||||
* Copyright (c) 1987 by Sun Microsystems, Inc.)
|
||||
* The layout of some data structures defined in this header file is
|
||||
* such that we can provide compatibility with the SunOS 4.x shared
|
||||
* library scheme.
|
||||
*/
|
||||
|
||||
#ifndef _LINK_H_
|
||||
#define _LINK_H_
|
||||
|
||||
/*
|
||||
* A `link_object' structure descibes a shared object that is needed
|
||||
* A `Shared Object Descriptor' descibes a shared object that is needed
|
||||
* to complete the link edit process of the object containing it.
|
||||
* A list of such objects (chained through `lo_next') is pointed at
|
||||
* by `ld_need' in the link_dynamic_2 structure.
|
||||
* A list of such objects (chained through `sod_next') is pointed at
|
||||
* by `sdt_sods' in the section_dispatch_table structure.
|
||||
*/
|
||||
|
||||
struct link_object {
|
||||
long lo_name; /* name (relative to load address) */
|
||||
u_int lo_library : 1, /* searched for by library rules */
|
||||
lo_unused : 31;
|
||||
short lo_major; /* major version number */
|
||||
short lo_minor; /* minor version number */
|
||||
long lo_next; /* next one (often relative) */
|
||||
struct sod { /* Shared Object Descriptor */
|
||||
long sod_name; /* name (relative to load address) */
|
||||
u_int sod_library : 1, /* Searched for by library rules */
|
||||
sod_reserved : 31;
|
||||
short sod_major; /* major version number */
|
||||
short sod_minor; /* minor version number */
|
||||
long sod_next; /* next sod */
|
||||
};
|
||||
|
||||
/*
|
||||
* `link_maps' are used by the run-time link editor (ld.so) to keep
|
||||
* track of all shared objects loaded into a process' address space.
|
||||
* `Shared Object Map's are used by the run-time link editor (ld.so) to
|
||||
* keep track of all shared objects loaded into a process' address space.
|
||||
* These structures are only used at run-time and do not occur within
|
||||
* the text or data segment of an executable or shared library.
|
||||
*/
|
||||
struct link_map {
|
||||
caddr_t lm_addr; /* address at which object mapped */
|
||||
char *lm_name; /* full name of loaded object */
|
||||
struct link_map *lm_next; /* next object in map */
|
||||
struct link_object *lm_lop; /* link object that got us here */
|
||||
caddr_t lm_lob; /* base address for said link object */
|
||||
u_int lm_rwt : 1; /* text is read/write */
|
||||
struct link_dynamic *lm_ld; /* dynamic structure */
|
||||
caddr_t lm_lpd; /* loader private data */
|
||||
struct so_map { /* Shared Object Map */
|
||||
caddr_t som_addr; /* Address at which object mapped */
|
||||
char *som_path; /* Path to mmap'ed file */
|
||||
struct so_map *som_next; /* Next map in chain */
|
||||
struct sod *som_sod; /* Sod responsible for this map */
|
||||
caddr_t som_sodbase; /* Base address of this sod */
|
||||
u_int som_write : 1; /* Text is currently writable */
|
||||
struct _dynamic *som_dynamic; /* _dynamic structure */
|
||||
caddr_t som_spd; /* Private data */
|
||||
};
|
||||
|
||||
/*
|
||||
@ -51,7 +79,7 @@ struct link_map {
|
||||
* one field (nz_size) added.
|
||||
* Used to convey size information on items in the data segment
|
||||
* of shared objects. An array of these live in the shared object's
|
||||
* text segment and is address by the `ld_symbols' field.
|
||||
* text segment and is addressed by the `sdt_nzlist' field.
|
||||
*/
|
||||
struct nzlist {
|
||||
struct nlist nlist;
|
||||
@ -65,37 +93,45 @@ struct nzlist {
|
||||
#define nz_other nlist.n_other
|
||||
};
|
||||
|
||||
#define N_AUX(p) ((p)->n_other & 0xf)
|
||||
#define N_RESERVED(p) (((unsigned int)(p)->n_other >> 4) & 0xf)
|
||||
#define N_OTHER(r, v) (((unsigned int)(r) << 4) | ((v) & 0xf))
|
||||
|
||||
#define AUX_OBJECT 1
|
||||
#define AUX_FUNC 2
|
||||
|
||||
|
||||
/*
|
||||
* The `link_dynamic_2' structure contains offsets to various data
|
||||
* The `section_dispatch_table' structure contains offsets to various data
|
||||
* structures needed to do run-time relocation.
|
||||
*/
|
||||
struct link_dynamic_2 {
|
||||
struct link_map *ld_loaded; /* list of loaded objects */
|
||||
long ld_need; /* list of needed objects */
|
||||
long ld_rules; /* search rules for library objects */
|
||||
long ld_got; /* global offset table */
|
||||
long ld_plt; /* procedure linkage table */
|
||||
long ld_rel; /* relocation table */
|
||||
long ld_hash; /* symbol hash table */
|
||||
long ld_symbols; /* symbol table itself */
|
||||
long (*ld_stab_hash)(); /* "pointer" to symbol hash function */
|
||||
long ld_buckets; /* number of hash buckets */
|
||||
long ld_strings; /* symbol strings */
|
||||
long ld_str_sz; /* size of symbol strings */
|
||||
long ld_text_sz; /* size of text area */
|
||||
long ld_plt_sz; /* size of procedure linkage table */
|
||||
struct section_dispatch_table {
|
||||
struct so_map *sdt_loaded; /* List of loaded objects */
|
||||
long sdt_sods; /* List of shared objects descriptors */
|
||||
long sdt_filler1; /* Unused (was: search rules) */
|
||||
long sdt_got; /* Global offset table */
|
||||
long sdt_plt; /* Procedure linkage table */
|
||||
long sdt_rel; /* Relocation table */
|
||||
long sdt_hash; /* Symbol hash table */
|
||||
long sdt_nzlist; /* Symbol table itself */
|
||||
long sdt_filler2; /* Unused (was: stab_hash) */
|
||||
long sdt_buckets; /* Number of hash buckets */
|
||||
long sdt_strings; /* Symbol strings */
|
||||
long sdt_str_sz; /* Size of symbol strings */
|
||||
long sdt_text_sz; /* Size of text area */
|
||||
long sdt_plt_sz; /* Size of procedure linkage table */
|
||||
};
|
||||
|
||||
/*
|
||||
* RRS symbol hash table, addressed by `ld_hash' in link_dynamic_2
|
||||
* RRS symbol hash table, addressed by `sdt_hash' in section_dispatch_table.
|
||||
* Used to quickly lookup symbols of the shared object by hashing
|
||||
* on the symbol's name. `rh_symbolnum' is the index of the symbol
|
||||
* in the shared object's symbol list (`ld_symbols'), `rh_next' is
|
||||
* in the shared object's symbol list (`sdt_nzlist'), `rh_next' is
|
||||
* the next symbol in the hash bucket (in case of collisions).
|
||||
*/
|
||||
struct rrs_hash {
|
||||
int rh_symbolnum; /* symbol number */
|
||||
int rh_next; /* next hash entry */
|
||||
int rh_symbolnum; /* Symbol number */
|
||||
int rh_next; /* Next hash entry */
|
||||
};
|
||||
|
||||
/*
|
||||
@ -103,86 +139,103 @@ struct rrs_hash {
|
||||
* and data items copied from shared objects.
|
||||
*/
|
||||
struct rt_symbol {
|
||||
struct nzlist *rt_sp; /* the symbol */
|
||||
struct rt_symbol *rt_next; /* next in linear list */
|
||||
struct rt_symbol *rt_link; /* next in bucket */
|
||||
caddr_t rt_srcaddr; /* address of "master" copy */
|
||||
struct nzlist *rt_sp; /* The symbol */
|
||||
struct rt_symbol *rt_next; /* Next in linear list */
|
||||
struct rt_symbol *rt_link; /* Next in bucket */
|
||||
caddr_t rt_srcaddr; /* Address of "master" copy */
|
||||
struct so_map *rt_smp; /* Originating map */
|
||||
};
|
||||
|
||||
/*
|
||||
* Debugger interface structure.
|
||||
*/
|
||||
struct ld_debug {
|
||||
int ldd_version; /* version # of interface */
|
||||
int ldd_in_debugger; /* a debugger is running us */
|
||||
int ldd_sym_loaded; /* we loaded some symbols */
|
||||
char *ldd_bp_addr; /* place for ld-generated bpt */
|
||||
int ldd_bp_inst; /* instruction which was there */
|
||||
struct rt_symbol *ldd_cp; /* commons we built */
|
||||
struct so_debug {
|
||||
int dd_version; /* Version # of interface */
|
||||
int dd_in_debugger; /* Set when run by debugger */
|
||||
int dd_sym_loaded; /* Run-time linking brought more
|
||||
symbols into scope */
|
||||
char *dd_bpt_addr; /* Address of rtld-generated bpt */
|
||||
int dd_bpt_shadow; /* Original contents of bpt */
|
||||
struct rt_symbol *dd_cc; /* Allocated commons/copied data */
|
||||
};
|
||||
|
||||
/*
|
||||
* Entry points into ld.so - user interface to the run-time linker.
|
||||
* (see also libdl.a)
|
||||
*/
|
||||
struct ld_entry {
|
||||
int (*dlopen)();
|
||||
int (*dlclose)();
|
||||
int (*dlsym)();
|
||||
void *(*dlopen) __P((char *, int));
|
||||
int (*dlclose) __P((void *));
|
||||
void *(*dlsym) __P((void *, char *));
|
||||
int (*dlctl) __P((void *, int, void *));
|
||||
};
|
||||
|
||||
/*
|
||||
* dlctl() commands
|
||||
*/
|
||||
#define DL_GETERRNO 1
|
||||
|
||||
/*
|
||||
* dl*() prototypes.
|
||||
*/
|
||||
extern void *dlopen __P((char *, int));
|
||||
extern int dlclose __P((void *));
|
||||
extern void *dlsym __P((void *, char *));
|
||||
extern int dlctl __P((void *, int, void *));
|
||||
|
||||
|
||||
/*
|
||||
* This is the structure pointed at by the __DYNAMIC symbol if an
|
||||
* executable requires the attention of the run-time link editor.
|
||||
* __DYNAMIC is given the value zero if no run-time linking needs to
|
||||
* be done (it is always present in shared objects).
|
||||
* The union `ld_un' provides for different versions of the dynamic
|
||||
* linking mechanism (switched on by `ld_version'). The last version
|
||||
* The union `d_un' provides for different versions of the dynamic
|
||||
* linking mechanism (switched on by `d_version'). The last version
|
||||
* used by Sun is 3. We leave some room here and go to version number
|
||||
* 8 for NetBSD, the main difference lying in the support for the
|
||||
* `nz_list' type of symbols.
|
||||
*/
|
||||
|
||||
struct link_dynamic {
|
||||
int ld_version; /* version # of this structure */
|
||||
struct ld_debug *ldd;
|
||||
struct _dynamic {
|
||||
int d_version; /* version # of this interface */
|
||||
struct so_debug *d_debug;
|
||||
union {
|
||||
struct link_dynamic_2 *ld_2;
|
||||
} ld_un;
|
||||
struct ld_entry *ld_entry;
|
||||
struct section_dispatch_table *d_sdt;
|
||||
} d_un;
|
||||
struct ld_entry *d_entry;
|
||||
};
|
||||
|
||||
#define LD_VERSION_SUN (3)
|
||||
#define LD_VERSION_BSD (8)
|
||||
#define LD_VERSION_NZLIST_P(v) ((v) >= 8)
|
||||
|
||||
#define LD_GOT(x) ((x)->ld_un.ld_2->ld_got)
|
||||
#define LD_PLT(x) ((x)->ld_un.ld_2->ld_plt)
|
||||
#define LD_REL(x) ((x)->ld_un.ld_2->ld_rel)
|
||||
#define LD_SYMBOL(x) ((x)->ld_un.ld_2->ld_symbols)
|
||||
#define LD_HASH(x) ((x)->ld_un.ld_2->ld_hash)
|
||||
#define LD_STRINGS(x) ((x)->ld_un.ld_2->ld_strings)
|
||||
#define LD_NEED(x) ((x)->ld_un.ld_2->ld_need)
|
||||
#define LD_BUCKETS(x) ((x)->ld_un.ld_2->ld_buckets)
|
||||
#define LD_GOT(x) ((x)->d_un.d_sdt->sdt_got)
|
||||
#define LD_PLT(x) ((x)->d_un.d_sdt->sdt_plt)
|
||||
#define LD_REL(x) ((x)->d_un.d_sdt->sdt_rel)
|
||||
#define LD_SYMBOL(x) ((x)->d_un.d_sdt->sdt_nzlist)
|
||||
#define LD_HASH(x) ((x)->d_un.d_sdt->sdt_hash)
|
||||
#define LD_STRINGS(x) ((x)->d_un.d_sdt->sdt_strings)
|
||||
#define LD_NEED(x) ((x)->d_un.d_sdt->sdt_sods)
|
||||
#define LD_BUCKETS(x) ((x)->d_un.d_sdt->sdt_buckets)
|
||||
|
||||
#define LD_GOTSZ(x) ((x)->ld_un.ld_2->ld_plt - (x)->ld_un.ld_2->ld_got)
|
||||
#define LD_RELSZ(x) ((x)->ld_un.ld_2->ld_hash - (x)->ld_un.ld_2->ld_rel)
|
||||
#define LD_HASHSZ(x) ((x)->ld_un.ld_2->ld_symbols - (x)->ld_un.ld_2->ld_hash)
|
||||
#define LD_STABSZ(x) ((x)->ld_un.ld_2->ld_strings - (x)->ld_un.ld_2->ld_symbols)
|
||||
#define LD_PLTSZ(x) ((x)->ld_un.ld_2->ld_plt_sz)
|
||||
#define LD_STRSZ(x) ((x)->ld_un.ld_2->ld_str_sz)
|
||||
#define LD_TEXTSZ(x) ((x)->ld_un.ld_2->ld_text_sz)
|
||||
#define LD_GOTSZ(x) ((x)->d_un.d_sdt->sdt_plt - (x)->d_un.d_sdt->sdt_got)
|
||||
#define LD_RELSZ(x) ((x)->d_un.d_sdt->sdt_hash - (x)->d_un.d_sdt->sdt_rel)
|
||||
#define LD_HASHSZ(x) ((x)->d_un.d_sdt->sdt_nzlist - (x)->d_un.d_sdt->sdt_hash)
|
||||
#define LD_STABSZ(x) ((x)->d_un.d_sdt->sdt_strings - (x)->d_un.d_sdt->sdt_nzlist)
|
||||
#define LD_PLTSZ(x) ((x)->d_un.d_sdt->sdt_plt_sz)
|
||||
#define LD_STRSZ(x) ((x)->d_un.d_sdt->sdt_str_sz)
|
||||
#define LD_TEXTSZ(x) ((x)->d_un.d_sdt->sdt_text_sz)
|
||||
|
||||
/*
|
||||
* Interface to ld.so (see link(5))
|
||||
* Interface to ld.so
|
||||
*/
|
||||
struct crt_ldso {
|
||||
int crt_ba; /* Base address of ld.so */
|
||||
int crt_dzfd; /* "/dev/zero" file decriptor (SunOS) */
|
||||
int crt_ldfd; /* ld.so file descriptor */
|
||||
struct link_dynamic *crt_dp;/* Main's __DYNAMIC */
|
||||
struct _dynamic *crt_dp; /* Main's __DYNAMIC */
|
||||
char **crt_ep; /* environment strings */
|
||||
caddr_t crt_bp; /* Breakpoint if run from debugger */
|
||||
char *crt_prog; /* Program name */
|
||||
};
|
||||
|
||||
/*
|
||||
@ -190,6 +243,8 @@ struct crt_ldso {
|
||||
*/
|
||||
#define CRT_VERSION_SUN 1
|
||||
#define CRT_VERSION_BSD 2
|
||||
#define CRT_VERSION_BSD_2 2
|
||||
#define CRT_VERSION_BSD_3 3
|
||||
|
||||
|
||||
/*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user