summaryrefslogtreecommitdiff
path: root/include/link.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/link.h')
-rw-r--r--include/link.h117
1 files changed, 2 insertions, 115 deletions
diff --git a/include/link.h b/include/link.h
index 070eabb6d..4680dd914 100644
--- a/include/link.h
+++ b/include/link.h
@@ -1,6 +1,6 @@
/* Data structure for communication from the run-time dynamic linker for
loaded ELF shared objects.
- Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -75,40 +75,11 @@ extern struct r_debug _r_debug;
*/
extern ElfW(Dyn) _DYNAMIC[];
-
-/* Some internal data structures of the dynamic linker used in the
- linker map. We only provide forward declarations. */
-struct libname_list;
-struct r_found_version;
-struct r_search_path_elem;
-
-/* Forward declaration. */
-struct link_map;
-
-/* Structure to describe a single list of scope elements. The lookup
- functions get passed an array of pointers to such structures. */
-struct r_scope_elem
-{
- /* Array of maps for the scope. */
- struct link_map **r_list;
- /* Number of entries in the scope. */
- unsigned int r_nlist;
-
- /* Array of maps which also includes duplicates. */
- struct link_map **r_duplist;
- /* Number of elements in this list. */
- unsigned int r_nduplist;
-};
-
-
/* Structure describing a loaded shared object. The `l_next' and `l_prev'
members form a chain of all the shared objects loaded at startup.
These data structures exist in space used by the run-time dynamic linker;
- modifying them may have disastrous results.
-
- This data structure might change in future, if necessary. User-level
- programs must avoid defining objects of this type. */
+ modifying them may have disastrous results. */
struct link_map
{
@@ -119,90 +90,6 @@ struct link_map
char *l_name; /* Absolute file name object was found in. */
ElfW(Dyn) *l_ld; /* Dynamic section of the shared object. */
struct link_map *l_next, *l_prev; /* Chain of loaded objects. */
-
- /* All following members are internal to the dynamic linker.
- They may change without notice. */
-
- struct libname_list *l_libname;
- /* Indexed pointers to dynamic section.
- [0,DT_NUM) are indexed by the processor-independent tags.
- [DT_NUM,DT_NUM+DT_PROCNUM) are indexed by the tag minus DT_LOPROC.
- [DT_NUM+DT_PROCNUM,DT_NUM+DT_PROCNUM+DT_EXTRANUM) are indexed
- by DT_EXTRATAGIDX(tagvalue) and
- [DT_NUM+DT_PROCNUM+DT_VERSIONTAGNUM,
- DT_NUM+DT_PROCNUM+DT_VERSIONTAGNUM+DT_EXTRANUM)
- are indexed by DT_EXTRATAGIDX(tagvalue) (see <elf.h>). */
-
- ElfW(Dyn) *l_info[DT_NUM + DT_PROCNUM + DT_VERSIONTAGNUM + DT_EXTRANUM];
- const ElfW(Phdr) *l_phdr; /* Pointer to program header table in core. */
- ElfW(Addr) l_entry; /* Entry point location. */
- ElfW(Half) l_phnum; /* Number of program header entries. */
-
- /* Array of DT_NEEDED dependencies and their dependencies, in
- dependency order for symbol lookup (with and without
- duplicates). There is no entry before the dependencies have
- been loaded. */
- struct r_scope_elem l_searchlist;
-
- /* We need a special searchlist to process objects marked with
- DT_SYMBOLIC. */
- struct r_scope_elem l_symbolic_searchlist;
-
- /* Dependent object that first caused this object to be loaded. */
- struct link_map *l_loader;
-
- /* Symbol hash table. */
- ElfW(Symndx) l_nbuckets;
- const ElfW(Symndx) *l_buckets, *l_chain;
-
- unsigned int l_opencount; /* Reference count for dlopen/dlclose. */
- enum /* Where this object came from. */
- {
- lt_executable, /* The main executable program. */
- lt_library, /* Library needed by main executable. */
- lt_loaded /* Extra run-time loaded shared object. */
- } l_type:2;
- unsigned int l_relocated:1; /* Nonzero if object's relocations done. */
- unsigned int l_init_called:1; /* Nonzero if DT_INIT function called. */
- unsigned int l_init_running:1; /* Nonzero while DT_INIT function runs. */
- unsigned int l_global:1; /* Nonzero if object in _dl_global_scope. */
- unsigned int l_reserved:2; /* Reserved for internal use. */
-
- /* Array with version names. */
- unsigned int l_nversions;
- struct r_found_version *l_versions;
-
- /* Collected information about own RPATH directories. */
- struct r_search_path_elem **l_rpath_dirs;
-
- /* Collected results of relocation while profiling. */
- ElfW(Addr) *l_reloc_result;
-
- /* Pointer to the version information if available. */
- ElfW(Half) *l_versyms;
-
- /* String specifying the path where this object was found. */
- const char *l_origin;
-
- /* Start and finish of memory map for this object. l_map_start
- need not be the same as l_addr. */
- ElfW(Addr) l_map_start, l_map_end;
-
- /* This is an array defining the lookup scope for this link map.
- There are at most three different scope lists. */
- struct r_scope_elem *l_scope[4];
-
- /* A similar array, this time only with the local scope. This is
- used occasionally. */
- struct r_scope_elem *l_local_scope[2];
-
- /* This information is kept to check for sure whether a shared
- object is the same as one already loaded. */
- dev_t l_dev;
- ino_t l_ino;
-
- /* Nonzero if the data structure pointed to by `l_phdr' is allocated. */
- int l_phdr_allocated;
};
#endif /* link.h */