2000-03-23 21:31:46 +01:00
|
|
|
|
/* Run-time dynamic linker data structures for loaded ELF shared objects.
|
2002-01-31 04:41:25 +01:00
|
|
|
|
Copyright (C) 1995-1999, 2000, 2001, 2002 Free Software Foundation, Inc.
|
2000-03-23 21:31:46 +01:00
|
|
|
|
This file is part of the GNU C Library.
|
|
|
|
|
|
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
2001-07-06 06:58:11 +02:00
|
|
|
|
modify it under the terms of the GNU Lesser General Public
|
|
|
|
|
License as published by the Free Software Foundation; either
|
|
|
|
|
version 2.1 of the License, or (at your option) any later version.
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
2001-07-06 06:58:11 +02:00
|
|
|
|
Lesser General Public License for more details.
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2001-07-06 06:58:11 +02:00
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
|
|
|
License along with the GNU C Library; if not, write to the Free
|
|
|
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
|
|
|
02111-1307 USA. */
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
#ifndef _LDSODEFS_H
|
|
|
|
|
#define _LDSODEFS_H 1
|
|
|
|
|
|
|
|
|
|
#include <features.h>
|
|
|
|
|
|
2002-02-07 05:08:19 +01:00
|
|
|
|
#include <stdbool.h>
|
2000-03-23 21:31:46 +01:00
|
|
|
|
#define __need_size_t
|
|
|
|
|
#define __need_NULL
|
|
|
|
|
#include <stddef.h>
|
2000-04-22 09:19:25 +02:00
|
|
|
|
#include <string.h>
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
#include <elf.h>
|
|
|
|
|
#include <dlfcn.h>
|
2002-02-01 02:33:04 +01:00
|
|
|
|
#include <fpu_control.h>
|
2002-01-31 04:41:25 +01:00
|
|
|
|
#include <sys/mman.h>
|
2000-03-23 21:31:46 +01:00
|
|
|
|
#include <link.h>
|
2000-05-05 09:15:29 +02:00
|
|
|
|
#include <dl-lookupcfg.h>
|
2001-08-23 08:03:42 +02:00
|
|
|
|
#include <bits/libc-lock.h>
|
2002-02-01 02:33:04 +01:00
|
|
|
|
#include <hp-timing.h>
|
2002-02-05 01:57:29 +01:00
|
|
|
|
#include <tls.h>
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
__BEGIN_DECLS
|
|
|
|
|
|
|
|
|
|
/* We use this macro to refer to ELF types independent of the native wordsize.
|
|
|
|
|
`ElfW(TYPE)' is used in place of `Elf32_TYPE' or `Elf64_TYPE'. */
|
|
|
|
|
#define ELFW(type) _ElfW (ELF, __ELF_NATIVE_CLASS, type)
|
|
|
|
|
|
|
|
|
|
/* All references to the value of l_info[DT_PLTGOT],
|
|
|
|
|
l_info[DT_STRTAB], l_info[DT_SYMTAB], l_info[DT_RELA],
|
2000-03-31 12:47:17 +02:00
|
|
|
|
l_info[DT_REL], l_info[DT_JMPREL], and l_info[VERSYMIDX (DT_VERSYM)]
|
2000-04-03 09:15:10 +02:00
|
|
|
|
have to be accessed via the D_PTR macro. The macro is needed since for
|
2000-03-31 12:47:17 +02:00
|
|
|
|
most architectures the entry is already relocated - but for some not
|
|
|
|
|
and we need to relocate at access time. */
|
2000-03-23 21:31:46 +01:00
|
|
|
|
#ifdef DL_RO_DYN_SECTION
|
|
|
|
|
# define D_PTR(map,i) (map->i->d_un.d_ptr + map->l_addr)
|
|
|
|
|
#else
|
|
|
|
|
# define D_PTR(map,i) map->i->d_un.d_ptr
|
|
|
|
|
#endif
|
|
|
|
|
|
2000-05-05 09:15:29 +02:00
|
|
|
|
/* On some platforms more information than just the address of the symbol
|
|
|
|
|
is needed from the lookup functions. In this case we return the whole
|
|
|
|
|
link map. */
|
|
|
|
|
#ifdef DL_LOOKUP_RETURNS_MAP
|
|
|
|
|
typedef struct link_map *lookup_t;
|
|
|
|
|
# define LOOKUP_VALUE(map) map
|
|
|
|
|
# define LOOKUP_VALUE_ADDRESS(map) (map ? map->l_addr : 0)
|
|
|
|
|
#else
|
|
|
|
|
typedef ElfW(Addr) lookup_t;
|
|
|
|
|
# define LOOKUP_VALUE(map) map->l_addr
|
|
|
|
|
# define LOOKUP_VALUE_ADDRESS(address) address
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* on some architectures a pointer to a function is not just a pointer
|
|
|
|
|
to the actual code of the function but rather an architecture
|
|
|
|
|
specific descriptor. */
|
|
|
|
|
#ifndef ELF_FUNCTION_PTR_IS_SPECIAL
|
2000-09-26 21:13:37 +02:00
|
|
|
|
# define DL_SYMBOL_ADDRESS(map, ref) \
|
2000-05-05 09:15:29 +02:00
|
|
|
|
(void *) (LOOKUP_VALUE_ADDRESS (map) + ref->st_value)
|
2000-09-26 21:13:37 +02:00
|
|
|
|
# define DL_LOOKUP_ADDRESS(addr) ((ElfW(Addr)) (addr))
|
2000-11-16 19:15:26 +01:00
|
|
|
|
# define DL_DT_INIT_ADDRESS(map, start) (start)
|
|
|
|
|
# define DL_DT_FINI_ADDRESS(map, start) (start)
|
2000-09-26 21:13:37 +02:00
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* Unmap a loaded object, called by _dl_close (). */
|
|
|
|
|
#ifndef DL_UNMAP_IS_SPECIAL
|
|
|
|
|
# define DL_UNMAP(map) \
|
|
|
|
|
__munmap ((void *) (map)->l_map_start, \
|
|
|
|
|
(map)->l_map_end - (map)->l_map_start)
|
2000-05-05 09:15:29 +02:00
|
|
|
|
#endif
|
|
|
|
|
|
2001-01-11 18:50:24 +01:00
|
|
|
|
/* By default we do not need special support to initialize DSOs loaded
|
|
|
|
|
by statically linked binaries. */
|
|
|
|
|
#ifndef DL_STATIC_INIT
|
|
|
|
|
# define DL_STATIC_INIT(map)
|
|
|
|
|
#endif
|
|
|
|
|
|
2001-08-27 00:28:16 +02:00
|
|
|
|
/* Reloc type classes as returned by elf_machine_type_class().
|
|
|
|
|
ELF_RTYPE_CLASS_PLT means this reloc should not be satisfied by
|
|
|
|
|
some PLT symbol, ELF_RTYPE_CLASS_COPY means this reloc should not be
|
|
|
|
|
satisfied by any symbol in the executable. */
|
|
|
|
|
#define ELF_RTYPE_CLASS_PLT 1
|
|
|
|
|
#define ELF_RTYPE_CLASS_COPY 2
|
|
|
|
|
|
2001-11-10 23:47:40 +01:00
|
|
|
|
/* ELF uses the PF_x macros to specify the segment permissions, mmap
|
|
|
|
|
uses PROT_xxx. In most cases the three macros have the values 1, 2,
|
|
|
|
|
and 3 but not in a matching order. The following macros allows
|
|
|
|
|
converting from the PF_x values to PROT_xxx values. */
|
|
|
|
|
#define PF_TO_PROT \
|
|
|
|
|
((PROT_READ << (PF_R * 4)) \
|
|
|
|
|
| (PROT_WRITE << (PF_W * 4)) \
|
|
|
|
|
| (PROT_EXEC << (PF_X * 4)) \
|
|
|
|
|
| ((PROT_READ | PROT_WRITE) << ((PF_R | PF_W) * 4)) \
|
|
|
|
|
| ((PROT_READ | PROT_EXEC) << ((PF_R | PF_X) * 4)) \
|
|
|
|
|
| ((PROT_WRITE | PROT_EXEC) << (PF_W | PF_X) * 4) \
|
|
|
|
|
| ((PROT_READ | PROT_WRITE | PROT_EXEC) << ((PF_R | PF_W | PF_X) * 4)))
|
|
|
|
|
|
|
|
|
|
|
2000-03-23 21:31:46 +01:00
|
|
|
|
/* For the version handling we need an array with only names and their
|
|
|
|
|
hash values. */
|
|
|
|
|
struct r_found_version
|
|
|
|
|
{
|
|
|
|
|
const char *name;
|
|
|
|
|
ElfW(Word) hash;
|
|
|
|
|
|
|
|
|
|
int hidden;
|
|
|
|
|
const char *filename;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* We want to cache information about the searches for shared objects. */
|
|
|
|
|
|
|
|
|
|
enum r_dir_status { unknown, nonexisting, existing };
|
|
|
|
|
|
|
|
|
|
struct r_search_path_elem
|
|
|
|
|
{
|
|
|
|
|
/* This link is only used in the `all_dirs' member of `r_search_path'. */
|
|
|
|
|
struct r_search_path_elem *next;
|
|
|
|
|
|
|
|
|
|
/* Strings saying where the definition came from. */
|
|
|
|
|
const char *what;
|
|
|
|
|
const char *where;
|
|
|
|
|
|
|
|
|
|
/* Basename for this search path element. The string must end with
|
|
|
|
|
a slash character. */
|
|
|
|
|
const char *dirname;
|
|
|
|
|
size_t dirnamelen;
|
|
|
|
|
|
|
|
|
|
enum r_dir_status status[0];
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
struct r_strlenpair
|
|
|
|
|
{
|
|
|
|
|
const char *str;
|
|
|
|
|
size_t len;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* A data structure for a simple single linked list of strings. */
|
|
|
|
|
struct libname_list
|
|
|
|
|
{
|
|
|
|
|
const char *name; /* Name requested (before search). */
|
|
|
|
|
struct libname_list *next; /* Link to next name for this object. */
|
2000-08-19 09:17:09 +02:00
|
|
|
|
int dont_free; /* Flag whether this element should be freed
|
|
|
|
|
if the object is not entirely unloaded. */
|
2000-03-23 21:31:46 +01:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Test whether given NAME matches any of the names of the given object. */
|
|
|
|
|
static __inline int
|
|
|
|
|
__attribute__ ((unused))
|
|
|
|
|
_dl_name_match_p (const char *__name, struct link_map *__map)
|
|
|
|
|
{
|
|
|
|
|
int __found = strcmp (__name, __map->l_name) == 0;
|
|
|
|
|
struct libname_list *__runp = __map->l_libname;
|
|
|
|
|
|
|
|
|
|
while (! __found && __runp != NULL)
|
|
|
|
|
if (strcmp (__name, __runp->name) == 0)
|
|
|
|
|
__found = 1;
|
|
|
|
|
else
|
|
|
|
|
__runp = __runp->next;
|
|
|
|
|
|
|
|
|
|
return __found;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Function used as argument for `_dl_receive_error' function. The
|
|
|
|
|
arguments are the error code, error string, and the objname the
|
|
|
|
|
error occurred in. */
|
|
|
|
|
typedef void (*receiver_fct) (int, const char *, const char *);
|
|
|
|
|
|
|
|
|
|
/* Internal functions of the run-time dynamic linker.
|
|
|
|
|
These can be accessed if you link again the dynamic linker
|
|
|
|
|
as a shared library, as in `-lld' or `/lib/ld.so' explicitly;
|
|
|
|
|
but are not normally of interest to user programs.
|
|
|
|
|
|
|
|
|
|
The `-ldl' library functions in <dlfcn.h> provide a simple
|
|
|
|
|
user interface to run-time dynamic linking. */
|
|
|
|
|
|
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
#ifndef SHARED
|
|
|
|
|
# define EXTERN extern
|
|
|
|
|
# define GL(name) _##name
|
|
|
|
|
#else
|
|
|
|
|
# define EXTERN
|
2002-04-08 20:50:41 +02:00
|
|
|
|
# ifdef IS_IN_rtld
|
2002-02-28 23:38:00 +01:00
|
|
|
|
# define GL(name) _rtld_local._##name
|
|
|
|
|
# else
|
|
|
|
|
# define GL(name) _rtld_global._##name
|
|
|
|
|
# endif
|
2002-01-31 04:41:25 +01:00
|
|
|
|
struct rtld_global
|
|
|
|
|
{
|
|
|
|
|
#endif
|
|
|
|
|
/* Don't change the order of the following elements. 'dl_loaded'
|
|
|
|
|
must remain the first element. Forever. */
|
|
|
|
|
|
|
|
|
|
/* And a pointer to the map for the main map. */
|
|
|
|
|
EXTERN struct link_map *_dl_loaded;
|
|
|
|
|
/* Number of object in the _dl_loaded list. */
|
|
|
|
|
EXTERN unsigned int _dl_nloaded;
|
|
|
|
|
/* Array representing global scope. */
|
|
|
|
|
EXTERN struct r_scope_elem *_dl_global_scope[2];
|
|
|
|
|
/* Direct pointer to the searchlist of the main object. */
|
|
|
|
|
EXTERN struct r_scope_elem *_dl_main_searchlist;
|
|
|
|
|
/* Copy of the content of `_dl_main_searchlist'. */
|
|
|
|
|
EXTERN struct r_scope_elem _dl_initial_searchlist;
|
|
|
|
|
/* This is zero at program start to signal that the global scope map is
|
|
|
|
|
allocated by rtld. Later it keeps the size of the map. It might be
|
|
|
|
|
reset if in _dl_close if the last global object is removed. */
|
|
|
|
|
EXTERN size_t _dl_global_scope_alloc;
|
|
|
|
|
|
|
|
|
|
/* If nonzero the appropriate debug information is printed. */
|
|
|
|
|
EXTERN int _dl_debug_mask;
|
2001-02-27 10:34:31 +01:00
|
|
|
|
#define DL_DEBUG_LIBS (1 << 0)
|
|
|
|
|
#define DL_DEBUG_IMPCALLS (1 << 1)
|
|
|
|
|
#define DL_DEBUG_BINDINGS (1 << 2)
|
|
|
|
|
#define DL_DEBUG_SYMBOLS (1 << 3)
|
|
|
|
|
#define DL_DEBUG_VERSIONS (1 << 4)
|
|
|
|
|
#define DL_DEBUG_RELOC (1 << 5)
|
|
|
|
|
#define DL_DEBUG_FILES (1 << 6)
|
|
|
|
|
#define DL_DEBUG_STATISTICS (1 << 7)
|
2002-02-07 05:08:19 +01:00
|
|
|
|
/* These two are used only internally. */
|
2001-11-06 21:15:40 +01:00
|
|
|
|
#define DL_DEBUG_HELP (1 << 8)
|
Update.
2001-12-11 Jakub Jelinek <jakub@redhat.com>
* elf/Makefile (dl-routines): Add conflict.
(rtld-ldscript-in, rtld-ldscript, rtld-parms): Remove.
(ld.so): Add _begin local symbol.
* elf/elf.h (DT_VALTAGIDX, DT_VALNUM, DT_ADDRTAGIDX, DT_ADDRNUM):
Define.
* elf/dl-deps.c (_dl_build_local_scope): New.
(_dl_map_object_deps): If LD_TRACE_PRELINKING, compute local scopes
of all libraries.
* elf/do-rel.h (VALIDX): Define.
(elf_dynamic_do_rel): If ELF_MACHINE_PLT_REL is defined, don't do
lazy binding for RELA. If DT_GNU_PRELINKED, DT_RELACOUNT relocations
can be skipped.
* elf/dl-conflict.c: New file.
* elf/dl-lookup.c (_dl_debug_bindings): New.
(_dl_lookup_symbol): Use _dl_debug_bindings. Reference_name is always
non-NULL.
(_dl_lookup_symbol_skip): Likewise.
(_dl_lookup_versioned_symbol): Likewise.
(_dl_lookup_versioned_symbol_skip): Likewise.
* elf/dl-runtime.c (PLTREL): If ELF_MACHINE_PLT_REL is defined,
define to ElfW(Rel).
* elf/dynamic-link.h (elf_get_dynamic_info): Record selected dynamic
tags in the DT_VALRNGLO..DT_VALRNGHI and DT_ADDRRNGLO..DT_ADDRRNGHI
ranges.
Don't adjust address dynamic tags if l_addr is 0.
* elf/rtld.c (_dl_trace_prelink, _dl_trace_prelink_map): New variables.
(_dl_start): Skip ELF_DYNAMIC_RELOCATE if ld.so is prelinked.
(VALIDX, ADDRIDX): Define.
(_dl_start_final): Initialize _dl_rtld_map's l_map_start and l_map_end.
(dl_main): Print library list for LD_TRACE_PRELINKING.
If prelinking information can be used, skip relocating libraries and
call _dl_resolve_conflicts instead.
(process_envvars): Handle LD_TRACE_PRELINKING envvar.
* elf/dl-load.c (_dl_map_object): Don't create fake libs
if LD_TRACE_PRELINKING.
* include/link.h (struct link_map) [l_info]: Add DT_VALNUM
+ DT_ADDRNUM.
* sysdeps/generic/ldsodefs.h (_dl_trace_prelink_map): New declaration.
(DL_DEBUG_PRELINK): Define.
(_dl_resolve_conflicts): Add prototype.
* sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Reinitialize
.plt for prelinked libraries where prelinking info cannot be used.
(elf_machine_rela): If relocating R_ALPHA_JMP_SLOT in .gnu.conflict
section, use RESOLVE_CONFLICT_FIND_MAP to find out reloc's link_map.
* sysdeps/arm/bits/link.h: New file.
* sysdeps/arm/dl-machine.h (elf_machine_runtime_setup): Save original
content of .got[1].
(ELF_MACHINE_NO_RELA): Only define if RTLD_BOOTSTRAP.
(ELF_MACHINE_PLT_REL): Define.
(elf_machine_rela, elf_machine_rela_relative): New.
(elf_machine_lazy_rel): Reinitialize R_ARM_JUMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/i386/bits/link.h: New file.
* sysdeps/i386/dl-machine.h (elf_machine_runtime_setup): Save original
content of .got[1].
(ELF_MACHINE_NO_RELA): Only define if RTLD_BOOTSTRAP.
(ELF_MACHINE_PLT_REL): Define.
(elf_machine_rela, elf_machine_rela_relative): New.
(elf_machine_lazy_rel): Reinitialize R_386_JUMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/powerpc/dl-machine.h (elf_machine_rela): If relocating
conflicts, skip finaladdr computation. Use RESOLVE_CONFLICT_FIND_MAP
to find out map for R_PPC_JMP_SLOT relocs.
* sysdeps/sparc/sparc32/dl-machine.h (VALIDX): Define.
(OPCODE_BA): Define.
(elf_machine_runtime_setup): Reinitialize .plt for prelinked
libraries where prelinking info cannot be used.
(sparc_fixup_plt): Renamed from elf_machine_fixup_plt.
(elf_machine_fixup_plt): Call sparc_fixup_plt.
(elf_machine_rela): Set value to 0 if relocating conflicts.
Call sparc_fixup_plt for R_SPARC_JMP_SLOT.
* sysdeps/sparc/sparc64/dl-machine.h (VALIDX): Define.
(sparc64_fixup_plt): Fix a typo.
(elf_machine_rela): Set value to 0 if relocating conflicts.
Handle R_SPARC_JMP_SLOT relocs when relocating conflicts.
(elf_machine_runtime_setup): Reinitialize .plt for prelinked
libraries where prelinking info cannot be used.
* sysdeps/sh/bits/link.h: New file.
* sysdeps/sh/dl-machine.h (elf_machine_runtime_setup): Save original
content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_SH_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/s390/s390-32/bits/link.h: New file.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_runtime_setup):
Save original content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_390_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/s390/s390-64/bits/link.h: New file.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_runtime_setup):
Save original content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_390_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/x86_64/bits/link.h: New file.
* sysdeps/x86_64/dl-machine.h (elf_machine_runtime_setup):
Save original content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_X86_64_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
2001-12-12 01:21:26 +01:00
|
|
|
|
#define DL_DEBUG_PRELINK (1 << 9)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* Cached value of `getpagesize ()'. */
|
|
|
|
|
EXTERN size_t _dl_pagesize;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2002-02-01 02:33:04 +01:00
|
|
|
|
/* During the program run we must not modify the global data of
|
|
|
|
|
loaded shared object simultanously in two threads. Therefore we
|
|
|
|
|
protect `_dl_open' and `_dl_close' in dl-close.c.
|
|
|
|
|
|
|
|
|
|
This must be a recursive lock since the initializer function of
|
|
|
|
|
the loaded object might as well require a call to this function.
|
|
|
|
|
At this time it is not anymore a problem to modify the tables. */
|
|
|
|
|
__libc_lock_define_recursive (EXTERN, _dl_load_lock)
|
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* OS version. */
|
|
|
|
|
EXTERN unsigned int _dl_osversion;
|
|
|
|
|
/* Platform name. */
|
|
|
|
|
EXTERN const char *_dl_platform;
|
|
|
|
|
EXTERN size_t _dl_platformlen;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
#ifndef MAP_ANON
|
|
|
|
|
/* File descriptor referring to the zero-fill device. */
|
|
|
|
|
EXTERN int _dl_zerofd;
|
|
|
|
|
#endif
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* CLK_TCK as reported by the kernel. */
|
|
|
|
|
EXTERN int _dl_clktck;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* If nonzero print warnings messages. */
|
|
|
|
|
EXTERN int _dl_verbose;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2002-02-01 02:33:04 +01:00
|
|
|
|
/* Do we do lazy relocations? */
|
|
|
|
|
EXTERN int _dl_lazy;
|
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* Nonzero if runtime lookups should not update the .got/.plt. */
|
|
|
|
|
EXTERN int _dl_bind_not;
|
|
|
|
|
|
2002-02-01 02:33:04 +01:00
|
|
|
|
/* Nonzero if references should be treated as weak during runtime
|
|
|
|
|
linking. */
|
|
|
|
|
EXTERN int _dl_dynamic_weak;
|
|
|
|
|
|
|
|
|
|
/* Default floating-point control word. */
|
|
|
|
|
EXTERN fpu_control_t _dl_fpu_control;
|
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* The object to be initialized first. */
|
|
|
|
|
EXTERN struct link_map *_dl_initfirst;
|
|
|
|
|
|
2002-02-09 02:54:57 +01:00
|
|
|
|
#if HP_TIMING_AVAIL || HP_SMALL_TIMING_AVAIL
|
2002-02-01 08:49:47 +01:00
|
|
|
|
/* Start time on CPU clock. */
|
2002-02-01 02:33:04 +01:00
|
|
|
|
EXTERN hp_timing_t _dl_cpuclock_offset;
|
2002-02-01 08:49:47 +01:00
|
|
|
|
|
|
|
|
|
/* Overhead of a high-precision timing measurement. */
|
|
|
|
|
EXTERN hp_timing_t _dl_hp_timing_overhead;
|
2002-02-01 02:33:04 +01:00
|
|
|
|
#endif
|
|
|
|
|
|
2002-02-05 01:57:29 +01:00
|
|
|
|
#ifdef USE_TLS
|
2002-02-07 05:08:19 +01:00
|
|
|
|
/* Highest dtv index currently needed. */
|
|
|
|
|
EXTERN size_t _dl_tls_max_dtv_idx;
|
|
|
|
|
/* Flag signalling whether there are gaps in the module ID allocation. */
|
|
|
|
|
EXTERN bool _dl_tls_dtv_gaps;
|
2002-02-13 09:03:56 +01:00
|
|
|
|
/* Information about the dtv slots. */
|
|
|
|
|
EXTERN struct dtv_slotinfo_list
|
|
|
|
|
{
|
|
|
|
|
size_t len;
|
|
|
|
|
struct dtv_slotinfo_list *next;
|
|
|
|
|
struct dtv_slotinfo
|
|
|
|
|
{
|
|
|
|
|
size_t gen;
|
|
|
|
|
struct link_map *map;
|
|
|
|
|
} slotinfo[0];
|
|
|
|
|
} *_dl_tls_dtv_slotinfo_list;
|
|
|
|
|
/* Number of modules in the static TLS block. */
|
|
|
|
|
EXTERN size_t _dl_tls_static_nelem;
|
2002-02-07 09:44:37 +01:00
|
|
|
|
/* Size of the static TLS block. */
|
|
|
|
|
EXTERN size_t _dl_tls_static_size;
|
|
|
|
|
/* Alignment requirement of the static TLS block. */
|
|
|
|
|
EXTERN size_t _dl_tls_static_align;
|
2002-02-09 02:41:44 +01:00
|
|
|
|
|
2002-02-13 09:03:56 +01:00
|
|
|
|
/* Number of additional entries in the slotinfo array of each slotinfo
|
|
|
|
|
list element. A large number makes it almost certain take we never
|
|
|
|
|
have to iterate beyond the first element in the slotinfo list. */
|
|
|
|
|
# define TLS_SLOTINFO_SURPLUS (62)
|
|
|
|
|
|
|
|
|
|
/* Number of additional slots in the dtv allocated. */
|
|
|
|
|
# define DTV_SURPLUS (14)
|
|
|
|
|
|
2002-08-05 20:56:03 +02:00
|
|
|
|
/* Initial dtv of the main thread, not allocated with normal malloc. */
|
|
|
|
|
EXTERN void *_dl_initial_dtv;
|
2002-02-13 09:03:56 +01:00
|
|
|
|
/* Generation counter for the dtv. */
|
|
|
|
|
EXTERN size_t _dl_tls_generation;
|
2002-02-05 01:57:29 +01:00
|
|
|
|
#endif
|
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* Name of the shared object to be profiled (if any). */
|
|
|
|
|
EXTERN const char *_dl_profile;
|
|
|
|
|
/* Map of shared object to be profiled. */
|
|
|
|
|
EXTERN struct link_map *_dl_profile_map;
|
|
|
|
|
/* Filename of the output file. */
|
|
|
|
|
EXTERN const char *_dl_profile_output;
|
|
|
|
|
/* Map of shared object to be prelink traced. */
|
|
|
|
|
EXTERN struct link_map *_dl_trace_prelink_map;
|
|
|
|
|
/* Name of the object we want to trace the prelinking. */
|
|
|
|
|
EXTERN const char *_dl_trace_prelink;
|
|
|
|
|
|
2002-02-01 02:33:04 +01:00
|
|
|
|
/* Expected cache ID. */
|
2002-01-31 04:41:25 +01:00
|
|
|
|
EXTERN int _dl_correct_cache_id;
|
|
|
|
|
|
|
|
|
|
/* Counters for the number of relocations performed. */
|
|
|
|
|
EXTERN unsigned long int _dl_num_relocations;
|
|
|
|
|
EXTERN unsigned long int _dl_num_cache_relocations;
|
|
|
|
|
|
|
|
|
|
/* Mask for hardware capabilities that are available. */
|
|
|
|
|
EXTERN unsigned long int _dl_hwcap;
|
|
|
|
|
|
|
|
|
|
/* Mask for important hardware capabilities we honour. */
|
|
|
|
|
EXTERN unsigned long int _dl_hwcap_mask;
|
|
|
|
|
|
|
|
|
|
/* Names of shared object for which the RPATH should be ignored. */
|
|
|
|
|
EXTERN const char *_dl_inhibit_rpath;
|
|
|
|
|
|
|
|
|
|
/* Location of the binary. */
|
|
|
|
|
EXTERN const char *_dl_origin_path;
|
|
|
|
|
|
|
|
|
|
/* List of search directories. */
|
|
|
|
|
EXTERN struct r_search_path_elem *_dl_all_dirs;
|
|
|
|
|
EXTERN struct r_search_path_elem *_dl_init_all_dirs;
|
|
|
|
|
|
2002-02-01 02:33:04 +01:00
|
|
|
|
/* File descriptor to write debug messages to. */
|
|
|
|
|
EXTERN int _dl_debug_fd;
|
|
|
|
|
|
2002-02-01 08:49:47 +01:00
|
|
|
|
/* Get architecture specific definitions. */
|
|
|
|
|
#define PROCINFO_DECL
|
|
|
|
|
#include <dl-procinfo.c>
|
|
|
|
|
|
2002-01-31 04:41:25 +01:00
|
|
|
|
/* Structure describing the dynamic linker itself. */
|
|
|
|
|
EXTERN struct link_map _dl_rtld_map;
|
|
|
|
|
#ifdef SHARED
|
|
|
|
|
};
|
2002-08-29 02:34:10 +02:00
|
|
|
|
# define __rtld_global_attribute__
|
2002-04-08 20:50:41 +02:00
|
|
|
|
# ifdef IS_IN_rtld
|
2002-02-28 23:38:00 +01:00
|
|
|
|
# ifdef HAVE_VISIBILITY_ATTRIBUTE
|
|
|
|
|
# ifdef HAVE_SDATA_SECTION
|
|
|
|
|
# define __rtld_local_attribute__ \
|
|
|
|
|
__attribute__ ((visibility ("hidden"), section (".sdata")))
|
2002-08-29 02:34:10 +02:00
|
|
|
|
# undef __rtld_global_attribute__
|
|
|
|
|
# define __rtld_global_attribute__ __attribute__ ((section (".sdata")))
|
2002-02-28 23:38:00 +01:00
|
|
|
|
# else
|
|
|
|
|
# define __rtld_local_attribute__ __attribute__ ((visibility ("hidden")))
|
|
|
|
|
# endif
|
|
|
|
|
# else
|
|
|
|
|
# define __rtld_local_attribute__
|
|
|
|
|
# endif
|
|
|
|
|
extern struct rtld_global _rtld_local __rtld_local_attribute__;
|
|
|
|
|
# endif
|
2002-08-29 02:34:10 +02:00
|
|
|
|
extern struct rtld_global _rtld_global __rtld_global_attribute__;
|
2002-01-31 04:41:25 +01:00
|
|
|
|
#endif
|
|
|
|
|
#undef EXTERN
|
|
|
|
|
|
|
|
|
|
/* Parameters passed to the dynamic linker. */
|
2002-03-15 04:16:52 +01:00
|
|
|
|
extern int _dl_argc attribute_hidden;
|
2002-01-31 04:41:25 +01:00
|
|
|
|
extern char **_dl_argv;
|
2002-04-08 20:50:41 +02:00
|
|
|
|
#ifdef IS_IN_rtld
|
2002-03-01 10:44:29 +01:00
|
|
|
|
extern char **_dl_argv_internal attribute_hidden;
|
|
|
|
|
# define rtld_progname (INTUSE(_dl_argv)[0])
|
|
|
|
|
#else
|
|
|
|
|
# define rtld_progname _dl_argv[0]
|
|
|
|
|
#endif
|
2002-01-31 04:41:25 +01:00
|
|
|
|
|
2000-07-13 21:46:27 +02:00
|
|
|
|
/* The array with message we print as a last resort. */
|
|
|
|
|
extern const char _dl_out_of_memory[];
|
2002-04-08 20:50:41 +02:00
|
|
|
|
#ifdef IS_IN_rtld
|
2002-03-01 10:44:29 +01:00
|
|
|
|
/* XXX #ifdef should go away. */
|
|
|
|
|
extern const char _dl_out_of_memory_internal[] attribute_hidden;
|
|
|
|
|
#endif
|
2000-07-13 21:46:27 +02:00
|
|
|
|
|
2000-08-31 04:27:07 +02:00
|
|
|
|
|
2000-03-23 21:31:46 +01:00
|
|
|
|
/* OS-dependent function to open the zero-fill device. */
|
|
|
|
|
extern int _dl_sysdep_open_zero_fill (void); /* dl-sysdep.c */
|
|
|
|
|
|
Update.
* elf/Versions [ld]: Don't export _dl_debug_message anymore. Export
_dl_debug_printf.
* elf/dl-misc.c: Remove definition of _dl_sysdep_output and
_dl_debug_message. Define _dl_debug_vdprintf, _dl_debug_printf,
_dl_debug_printf_c, and _dl_printf.
* sysdeps/generic/ldsodefs.h: Don't declare _dl_sysdep_output,
_dl_debug_message, _dl_sysdep_message, _dl_sysdep_error, and
_dl_sysdep_fatal. Declare _dl_debug_printf, _dl_debug_printf_c,
_dl_printf, _dl_error_printf, and _dl_fatal_printf.
* elf/dl-close.c: Replace use of old output functions with the new
ones.
* elf/dl-deps.c: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-minimal.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* elf/rtld.c: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/generic/libc-start.c: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/unix/sysv/linux/dl-osinfo.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Likewise.
* sysdeps/generic/ldsodefs.h: Remove _dl_secure declaration.
* dlfcn/Makefile: Don't run tstatexit test unless .hidden is
supported by assembler.
2001-02-28 07:24:03 +01:00
|
|
|
|
|
|
|
|
|
/* Write message on the debug file descriptor. The parameters are
|
|
|
|
|
interpreted as for a `printf' call. All the lines start with a
|
|
|
|
|
tag showing the PID. */
|
|
|
|
|
extern void _dl_debug_printf (const char *fmt, ...)
|
|
|
|
|
__attribute__ ((__format__ (__printf__, 1, 2)));
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern void _dl_debug_printf_internal (const char *fmt, ...)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
__attribute__ ((__format__ (__printf__, 1, 2)))
|
|
|
|
|
attribute_hidden;
|
Update.
* elf/Versions [ld]: Don't export _dl_debug_message anymore. Export
_dl_debug_printf.
* elf/dl-misc.c: Remove definition of _dl_sysdep_output and
_dl_debug_message. Define _dl_debug_vdprintf, _dl_debug_printf,
_dl_debug_printf_c, and _dl_printf.
* sysdeps/generic/ldsodefs.h: Don't declare _dl_sysdep_output,
_dl_debug_message, _dl_sysdep_message, _dl_sysdep_error, and
_dl_sysdep_fatal. Declare _dl_debug_printf, _dl_debug_printf_c,
_dl_printf, _dl_error_printf, and _dl_fatal_printf.
* elf/dl-close.c: Replace use of old output functions with the new
ones.
* elf/dl-deps.c: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-minimal.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* elf/rtld.c: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/generic/libc-start.c: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/unix/sysv/linux/dl-osinfo.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Likewise.
* sysdeps/generic/ldsodefs.h: Remove _dl_secure declaration.
* dlfcn/Makefile: Don't run tstatexit test unless .hidden is
supported by assembler.
2001-02-28 07:24:03 +01:00
|
|
|
|
|
|
|
|
|
/* Write message on the debug file descriptor. The parameters are
|
|
|
|
|
interpreted as for a `printf' call. All the lines buf the first
|
|
|
|
|
start with a tag showing the PID. */
|
|
|
|
|
extern void _dl_debug_printf_c (const char *fmt, ...)
|
|
|
|
|
__attribute__ ((__format__ (__printf__, 1, 2)));
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Write a message on the specified descriptor FD. The parameters are
|
|
|
|
|
interpreted as for a `printf' call. */
|
|
|
|
|
extern void _dl_dprintf (int fd, const char *fmt, ...)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
__attribute__ ((__format__ (__printf__, 2, 3)))
|
|
|
|
|
attribute_hidden;
|
Update.
* elf/Versions [ld]: Don't export _dl_debug_message anymore. Export
_dl_debug_printf.
* elf/dl-misc.c: Remove definition of _dl_sysdep_output and
_dl_debug_message. Define _dl_debug_vdprintf, _dl_debug_printf,
_dl_debug_printf_c, and _dl_printf.
* sysdeps/generic/ldsodefs.h: Don't declare _dl_sysdep_output,
_dl_debug_message, _dl_sysdep_message, _dl_sysdep_error, and
_dl_sysdep_fatal. Declare _dl_debug_printf, _dl_debug_printf_c,
_dl_printf, _dl_error_printf, and _dl_fatal_printf.
* elf/dl-close.c: Replace use of old output functions with the new
ones.
* elf/dl-deps.c: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-minimal.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* elf/rtld.c: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/generic/libc-start.c: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/unix/sysv/linux/dl-osinfo.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Likewise.
* sysdeps/generic/ldsodefs.h: Remove _dl_secure declaration.
* dlfcn/Makefile: Don't run tstatexit test unless .hidden is
supported by assembler.
2001-02-28 07:24:03 +01:00
|
|
|
|
|
|
|
|
|
/* Write a message on the specified descriptor standard output. The
|
|
|
|
|
parameters are interpreted as for a `printf' call. */
|
|
|
|
|
#define _dl_printf(fmt, args...) \
|
|
|
|
|
_dl_dprintf (STDOUT_FILENO, fmt, ##args)
|
|
|
|
|
|
|
|
|
|
/* Write a message on the specified descriptor standard error. The
|
|
|
|
|
parameters are interpreted as for a `printf' call. */
|
|
|
|
|
#define _dl_error_printf(fmt, args...) \
|
|
|
|
|
_dl_dprintf (STDERR_FILENO, fmt, ##args)
|
|
|
|
|
|
|
|
|
|
/* Write a message on the specified descriptor standard error and exit
|
|
|
|
|
the program. The parameters are interpreted as for a `printf' call. */
|
|
|
|
|
#define _dl_fatal_printf(fmt, args...) \
|
2000-03-23 21:31:46 +01:00
|
|
|
|
do \
|
|
|
|
|
{ \
|
Update.
* elf/Versions [ld]: Don't export _dl_debug_message anymore. Export
_dl_debug_printf.
* elf/dl-misc.c: Remove definition of _dl_sysdep_output and
_dl_debug_message. Define _dl_debug_vdprintf, _dl_debug_printf,
_dl_debug_printf_c, and _dl_printf.
* sysdeps/generic/ldsodefs.h: Don't declare _dl_sysdep_output,
_dl_debug_message, _dl_sysdep_message, _dl_sysdep_error, and
_dl_sysdep_fatal. Declare _dl_debug_printf, _dl_debug_printf_c,
_dl_printf, _dl_error_printf, and _dl_fatal_printf.
* elf/dl-close.c: Replace use of old output functions with the new
ones.
* elf/dl-deps.c: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-minimal.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* elf/rtld.c: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/generic/libc-start.c: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/unix/sysv/linux/dl-osinfo.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-librecon.h: Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Likewise.
* sysdeps/generic/ldsodefs.h: Remove _dl_secure declaration.
* dlfcn/Makefile: Don't run tstatexit test unless .hidden is
supported by assembler.
2001-02-28 07:24:03 +01:00
|
|
|
|
_dl_dprintf (STDERR_FILENO, fmt, ##args); \
|
2000-03-23 21:31:46 +01:00
|
|
|
|
_exit (127); \
|
|
|
|
|
} \
|
|
|
|
|
while (1)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* This function is called by all the internal dynamic linker functions
|
|
|
|
|
when they encounter an error. ERRCODE is either an `errno' code or
|
|
|
|
|
zero; OBJECT is the name of the problematical shared object, or null if
|
|
|
|
|
it is a general problem; ERRSTRING is a string describing the specific
|
|
|
|
|
problem. */
|
2000-06-10 06:01:36 +02:00
|
|
|
|
extern void _dl_signal_error (int errcode, const char *object,
|
2001-09-05 05:42:43 +02:00
|
|
|
|
const char *occurred, const char *errstring)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function
|
|
|
|
|
__attribute__ ((__noreturn__));
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern void _dl_signal_error_internal (int errcode, const char *object,
|
|
|
|
|
const char *occurred,
|
|
|
|
|
const char *errstring)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function __attribute__ ((__noreturn__)) attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* Like _dl_signal_error, but may return when called in the context of
|
|
|
|
|
_dl_receive_error. */
|
2001-09-05 05:42:43 +02:00
|
|
|
|
extern void _dl_signal_cerror (int errcode, const char *object,
|
|
|
|
|
const char *occation, const char *errstring)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
/* Call OPERATE, receiving errors from `dl_signal_cerror'. Unlike
|
|
|
|
|
`_dl_catch_error' the operation is resumed after the OPERATE
|
|
|
|
|
function returns.
|
|
|
|
|
ARGS is passed as argument to OPERATE. */
|
|
|
|
|
extern void _dl_receive_error (receiver_fct fct, void (*operate) (void *),
|
|
|
|
|
void *args)
|
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Open the shared object NAME and map in its segments.
|
|
|
|
|
LOADER's DT_RPATH is used in searching for NAME.
|
|
|
|
|
If the object is already opened, returns its existing map.
|
|
|
|
|
For preloaded shared objects PRELOADED is set to a non-zero
|
|
|
|
|
value to allow additional security checks. */
|
|
|
|
|
extern struct link_map *_dl_map_object (struct link_map *loader,
|
|
|
|
|
const char *name, int preloaded,
|
2000-07-21 06:12:25 +02:00
|
|
|
|
int type, int trace_mode, int mode)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern struct link_map *_dl_map_object_internal (struct link_map *loader,
|
|
|
|
|
const char *name,
|
|
|
|
|
int preloaded,
|
|
|
|
|
int type, int trace_mode,
|
|
|
|
|
int mode)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* Call _dl_map_object on the dependencies of MAP, and set up
|
|
|
|
|
MAP->l_searchlist. PRELOADS points to a vector of NPRELOADS previously
|
|
|
|
|
loaded objects that will be inserted into MAP->l_searchlist after MAP
|
|
|
|
|
but before its dependencies. */
|
|
|
|
|
extern void _dl_map_object_deps (struct link_map *map,
|
|
|
|
|
struct link_map **preloads,
|
2002-02-10 23:40:17 +01:00
|
|
|
|
unsigned int npreloads, int trace_mode,
|
|
|
|
|
int open_mode)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern void _dl_map_object_deps_internal (struct link_map *map,
|
|
|
|
|
struct link_map **preloads,
|
|
|
|
|
unsigned int npreloads,
|
2002-02-10 23:40:17 +01:00
|
|
|
|
int trace_mode, int open_mode)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* Cache the locations of MAP's hash table. */
|
2002-08-25 22:14:50 +02:00
|
|
|
|
extern void _dl_setup_hash (struct link_map *map)
|
|
|
|
|
internal_function attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Search loaded objects' symbol tables for a definition of the symbol
|
|
|
|
|
referred to by UNDEF. *SYM is the symbol table entry containing the
|
|
|
|
|
reference; it is replaced with the defining symbol, and the base load
|
|
|
|
|
address of the defining object is returned. SYMBOL_SCOPE is a
|
|
|
|
|
null-terminated list of object scopes to search; each object's
|
|
|
|
|
l_searchlist (i.e. the segment of the dependency tree starting at that
|
|
|
|
|
object) is searched in turn. REFERENCE_NAME should name the object
|
|
|
|
|
containing the reference; it is used in error messages.
|
2001-08-27 00:28:16 +02:00
|
|
|
|
TYPE_CLASS describes the type of symbol we are looking for. */
|
2000-05-05 09:15:29 +02:00
|
|
|
|
extern lookup_t _dl_lookup_symbol (const char *undef,
|
|
|
|
|
struct link_map *undef_map,
|
|
|
|
|
const ElfW(Sym) **sym,
|
|
|
|
|
struct r_scope_elem *symbol_scope[],
|
2002-04-13 09:55:02 +02:00
|
|
|
|
int type_class, int flags)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern lookup_t _dl_lookup_symbol_internal (const char *undef,
|
|
|
|
|
struct link_map *undef_map,
|
|
|
|
|
const ElfW(Sym) **sym,
|
2002-08-25 22:14:50 +02:00
|
|
|
|
struct r_scope_elem *symbolscope[],
|
2002-04-13 09:55:02 +02:00
|
|
|
|
int type_class, int flags)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
2002-04-13 09:55:02 +02:00
|
|
|
|
enum
|
|
|
|
|
{
|
|
|
|
|
/* If necessary add dependency between user and provider object. */
|
|
|
|
|
DL_LOOKUP_ADD_DEPENDENCY = 1,
|
|
|
|
|
/* Return most recent version instead of default version for
|
|
|
|
|
unversioned lookup. */
|
|
|
|
|
DL_LOOKUP_RETURN_NEWEST = 2
|
|
|
|
|
};
|
|
|
|
|
|
2000-03-23 21:31:46 +01:00
|
|
|
|
/* Lookup versioned symbol. */
|
2000-05-05 09:15:29 +02:00
|
|
|
|
extern lookup_t _dl_lookup_versioned_symbol (const char *undef,
|
|
|
|
|
struct link_map *undef_map,
|
|
|
|
|
const ElfW(Sym) **sym,
|
|
|
|
|
struct r_scope_elem *symbol_scope[],
|
|
|
|
|
const struct r_found_version *version,
|
2001-08-27 00:28:16 +02:00
|
|
|
|
int type_class, int explicit)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern lookup_t _dl_lookup_versioned_symbol_internal (const char *undef,
|
|
|
|
|
struct link_map *undef_map,
|
|
|
|
|
const ElfW(Sym) **sym,
|
|
|
|
|
struct r_scope_elem *symbol_scope[],
|
|
|
|
|
const struct r_found_version *version,
|
|
|
|
|
int type_class,
|
|
|
|
|
int explicit)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* For handling RTLD_NEXT we must be able to skip shared objects. */
|
2000-05-05 09:15:29 +02:00
|
|
|
|
extern lookup_t _dl_lookup_symbol_skip (const char *undef,
|
|
|
|
|
struct link_map *undef_map,
|
|
|
|
|
const ElfW(Sym) **sym,
|
|
|
|
|
struct r_scope_elem *symbol_scope[],
|
|
|
|
|
struct link_map *skip_this)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
/* For handling RTLD_NEXT with versioned symbols we must be able to
|
|
|
|
|
skip shared objects. */
|
2000-05-05 09:15:29 +02:00
|
|
|
|
extern lookup_t _dl_lookup_versioned_symbol_skip (const char *undef,
|
|
|
|
|
struct link_map *undef_map,
|
|
|
|
|
const ElfW(Sym) **sym,
|
|
|
|
|
struct r_scope_elem *symbol_scope[],
|
|
|
|
|
const struct r_found_version *version,
|
|
|
|
|
struct link_map *skip_this)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
/* Look up symbol NAME in MAP's scope and return its run-time address. */
|
|
|
|
|
extern ElfW(Addr) _dl_symbol_value (struct link_map *map, const char *name)
|
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
/* Allocate a `struct link_map' for a new object being loaded,
|
|
|
|
|
and enter it into the _dl_main_map list. */
|
|
|
|
|
extern struct link_map *_dl_new_object (char *realname, const char *libname,
|
|
|
|
|
int type, struct link_map *loader)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* Relocate the given object (if it hasn't already been).
|
|
|
|
|
SCOPE is passed to _dl_lookup_symbol in symbol lookups.
|
|
|
|
|
If LAZY is nonzero, don't relocate its PLT. */
|
|
|
|
|
extern void _dl_relocate_object (struct link_map *map,
|
|
|
|
|
struct r_scope_elem *scope[],
|
|
|
|
|
int lazy, int consider_profiling);
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern void _dl_relocate_object_internal (struct link_map *map,
|
|
|
|
|
struct r_scope_elem *scope[],
|
2002-08-25 22:14:50 +02:00
|
|
|
|
int lazy, int consider_profiling)
|
|
|
|
|
attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* Call _dl_signal_error with a message about an unhandled reloc type.
|
|
|
|
|
TYPE is the result of ELFW(R_TYPE) (r_info), i.e. an R_<CPU>_* value.
|
|
|
|
|
PLT is nonzero if this was a PLT reloc; it just affects the message. */
|
|
|
|
|
extern void _dl_reloc_bad_type (struct link_map *map,
|
2001-11-05 23:13:46 +01:00
|
|
|
|
unsigned int type, int plt)
|
|
|
|
|
internal_function __attribute__ ((__noreturn__));
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
Update.
2001-12-11 Jakub Jelinek <jakub@redhat.com>
* elf/Makefile (dl-routines): Add conflict.
(rtld-ldscript-in, rtld-ldscript, rtld-parms): Remove.
(ld.so): Add _begin local symbol.
* elf/elf.h (DT_VALTAGIDX, DT_VALNUM, DT_ADDRTAGIDX, DT_ADDRNUM):
Define.
* elf/dl-deps.c (_dl_build_local_scope): New.
(_dl_map_object_deps): If LD_TRACE_PRELINKING, compute local scopes
of all libraries.
* elf/do-rel.h (VALIDX): Define.
(elf_dynamic_do_rel): If ELF_MACHINE_PLT_REL is defined, don't do
lazy binding for RELA. If DT_GNU_PRELINKED, DT_RELACOUNT relocations
can be skipped.
* elf/dl-conflict.c: New file.
* elf/dl-lookup.c (_dl_debug_bindings): New.
(_dl_lookup_symbol): Use _dl_debug_bindings. Reference_name is always
non-NULL.
(_dl_lookup_symbol_skip): Likewise.
(_dl_lookup_versioned_symbol): Likewise.
(_dl_lookup_versioned_symbol_skip): Likewise.
* elf/dl-runtime.c (PLTREL): If ELF_MACHINE_PLT_REL is defined,
define to ElfW(Rel).
* elf/dynamic-link.h (elf_get_dynamic_info): Record selected dynamic
tags in the DT_VALRNGLO..DT_VALRNGHI and DT_ADDRRNGLO..DT_ADDRRNGHI
ranges.
Don't adjust address dynamic tags if l_addr is 0.
* elf/rtld.c (_dl_trace_prelink, _dl_trace_prelink_map): New variables.
(_dl_start): Skip ELF_DYNAMIC_RELOCATE if ld.so is prelinked.
(VALIDX, ADDRIDX): Define.
(_dl_start_final): Initialize _dl_rtld_map's l_map_start and l_map_end.
(dl_main): Print library list for LD_TRACE_PRELINKING.
If prelinking information can be used, skip relocating libraries and
call _dl_resolve_conflicts instead.
(process_envvars): Handle LD_TRACE_PRELINKING envvar.
* elf/dl-load.c (_dl_map_object): Don't create fake libs
if LD_TRACE_PRELINKING.
* include/link.h (struct link_map) [l_info]: Add DT_VALNUM
+ DT_ADDRNUM.
* sysdeps/generic/ldsodefs.h (_dl_trace_prelink_map): New declaration.
(DL_DEBUG_PRELINK): Define.
(_dl_resolve_conflicts): Add prototype.
* sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Reinitialize
.plt for prelinked libraries where prelinking info cannot be used.
(elf_machine_rela): If relocating R_ALPHA_JMP_SLOT in .gnu.conflict
section, use RESOLVE_CONFLICT_FIND_MAP to find out reloc's link_map.
* sysdeps/arm/bits/link.h: New file.
* sysdeps/arm/dl-machine.h (elf_machine_runtime_setup): Save original
content of .got[1].
(ELF_MACHINE_NO_RELA): Only define if RTLD_BOOTSTRAP.
(ELF_MACHINE_PLT_REL): Define.
(elf_machine_rela, elf_machine_rela_relative): New.
(elf_machine_lazy_rel): Reinitialize R_ARM_JUMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/i386/bits/link.h: New file.
* sysdeps/i386/dl-machine.h (elf_machine_runtime_setup): Save original
content of .got[1].
(ELF_MACHINE_NO_RELA): Only define if RTLD_BOOTSTRAP.
(ELF_MACHINE_PLT_REL): Define.
(elf_machine_rela, elf_machine_rela_relative): New.
(elf_machine_lazy_rel): Reinitialize R_386_JUMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/powerpc/dl-machine.h (elf_machine_rela): If relocating
conflicts, skip finaladdr computation. Use RESOLVE_CONFLICT_FIND_MAP
to find out map for R_PPC_JMP_SLOT relocs.
* sysdeps/sparc/sparc32/dl-machine.h (VALIDX): Define.
(OPCODE_BA): Define.
(elf_machine_runtime_setup): Reinitialize .plt for prelinked
libraries where prelinking info cannot be used.
(sparc_fixup_plt): Renamed from elf_machine_fixup_plt.
(elf_machine_fixup_plt): Call sparc_fixup_plt.
(elf_machine_rela): Set value to 0 if relocating conflicts.
Call sparc_fixup_plt for R_SPARC_JMP_SLOT.
* sysdeps/sparc/sparc64/dl-machine.h (VALIDX): Define.
(sparc64_fixup_plt): Fix a typo.
(elf_machine_rela): Set value to 0 if relocating conflicts.
Handle R_SPARC_JMP_SLOT relocs when relocating conflicts.
(elf_machine_runtime_setup): Reinitialize .plt for prelinked
libraries where prelinking info cannot be used.
* sysdeps/sh/bits/link.h: New file.
* sysdeps/sh/dl-machine.h (elf_machine_runtime_setup): Save original
content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_SH_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/s390/s390-32/bits/link.h: New file.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_runtime_setup):
Save original content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_390_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/s390/s390-64/bits/link.h: New file.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_runtime_setup):
Save original content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_390_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
* sysdeps/x86_64/bits/link.h: New file.
* sysdeps/x86_64/dl-machine.h (elf_machine_runtime_setup):
Save original content of .got[1].
(elf_machine_lazy_rel): Reinitialize R_X86_64_JMP_SLOT address instead
of adjusting it if prelinked and prelinking cannot be used.
2001-12-12 01:21:26 +01:00
|
|
|
|
/* Resolve conflicts if prelinking. */
|
|
|
|
|
extern void _dl_resolve_conflicts (struct link_map *l,
|
|
|
|
|
ElfW(Rela) *conflict,
|
|
|
|
|
ElfW(Rela) *conflictend);
|
|
|
|
|
|
2000-03-23 21:31:46 +01:00
|
|
|
|
/* Check the version dependencies of all objects available through
|
|
|
|
|
MAP. If VERBOSE print some more diagnostics. */
|
2000-04-16 00:26:34 +02:00
|
|
|
|
extern int _dl_check_all_versions (struct link_map *map, int verbose,
|
|
|
|
|
int trace_mode)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
/* Check the version dependencies for MAP. If VERBOSE print some more
|
|
|
|
|
diagnostics. */
|
2000-04-16 00:26:34 +02:00
|
|
|
|
extern int _dl_check_map_versions (struct link_map *map, int verbose,
|
|
|
|
|
int trace_mode)
|
2000-03-23 21:31:46 +01:00
|
|
|
|
internal_function;
|
|
|
|
|
|
2000-03-30 18:30:49 +02:00
|
|
|
|
/* Initialize the object in SCOPE by calling the constructors with
|
|
|
|
|
ARGC, ARGV, and ENV as the parameters. */
|
|
|
|
|
extern void _dl_init (struct link_map *main_map, int argc, char **argv,
|
|
|
|
|
char **env) internal_function;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* Call the finalizer functions of all shared objects whose
|
|
|
|
|
initializer functions have completed. */
|
|
|
|
|
extern void _dl_fini (void) internal_function;
|
|
|
|
|
|
|
|
|
|
/* The dynamic linker calls this function before and having changing
|
|
|
|
|
any shared object mappings. The `r_state' member of `struct r_debug'
|
|
|
|
|
says what change is taking place. This function's address is
|
|
|
|
|
the value of the `r_brk' member. */
|
|
|
|
|
extern void _dl_debug_state (void);
|
2002-03-15 06:20:35 +01:00
|
|
|
|
extern void _dl_debug_state_internal (void) attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* Initialize `struct r_debug' if it has not already been done. The
|
|
|
|
|
argument is the run-time load address of the dynamic linker, to be put
|
|
|
|
|
in the `r_ldbase' member. Returns the address of the structure. */
|
|
|
|
|
extern struct r_debug *_dl_debug_initialize (ElfW(Addr) ldbase)
|
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
/* Initialize the basic data structure for the search paths. */
|
|
|
|
|
extern void _dl_init_paths (const char *library_path) internal_function;
|
|
|
|
|
|
|
|
|
|
/* Gather the information needed to install the profiling tables and start
|
|
|
|
|
the timers. */
|
|
|
|
|
extern void _dl_start_profile (struct link_map *map, const char *output_dir)
|
|
|
|
|
internal_function;
|
Update.
Change ld.so to not use functions which are exported. One cannot
interpose them anyway. Use INT() to mark uses, INTDEF() to mark
definitions.
* include/libc-symbols.h: Define INT and INTDEF.
* sysdeps/generic/ldsodefs.h: Declare _dl_debug_printf_internal,
_dl_signal_error_internal, _dl_map_object_internal,
_dl_map_object_deps_internal, _dl_lookup_symbol_internal,
_dl_lookup_versioned_symbol_internal,
_dl_relocate_object_internal, _dl_debug_state_internal,
_dl_start_profile_internal, and _dl_unload_cache_internal.
* include/dlfcn.h: Declare _dl_catch_error_internal.
* elf/rtld.c: Use INT for calls to any of the *_internal functions
above. Add INTDEF to function definitions.
* elf/dl-debug.c: Likewise.
* elf/dl-deps.c: Likewise.
* elf/dl-dst.h: Likewise.
* elf/dl-error.c: Likewise.
* elf/dl-fini.c: Likewise.
* elf/dl-init.c: Likewise.
* elf/dl-load.c: Likewise.
* elf/dl-lookup.c: Likewise.
* elf/dl-misc.c: Likewise.
* elf/dl-open.c: Likewise.
* elf/dl-profile.c: Likewise.
* elf/dl-reloc.c: Likewise.
* elf/dl-runtime.c: Likewise.
* elf/dl-version.c: Likewise.
* elf/do-lookup.h: Likewise.
* sysdeps/generic/dl-cache.c: Likewise.
* sysdeps/generic/dl-sysdep.c: Likewise.
* sysdeps/alpha/dl-machine.h (RTLD_START): Call _dl_init_internal
instead of _dl_init.
* sysdeps/arm/dl-machine.h: Likewise.
* sysdeps/cris/dl-machine.h: Likewise.
* sysdeps/hppa/dl-machine.h: Likewise.
* sysdeps/i386/dl-machine.h: Likewise.
* sysdeps/ia64/dl-machine.h: Likewise.
* sysdeps/m68k/dl-machine.h: Likewise.
* sysdeps/mips/dl-machine.h: Likewise.
* sysdeps/mips/mips64/dl-machine.h: Likewise.
* sysdeps/s390/s390-32/dl-machine.h: Likewise.
* sysdeps/s390/s390-64/dl-machine.h: Likewise.
* sysdeps/sh/dl-machine.h: Likewise.
* sysdeps/sparc/sparc32/dl-machine.h: Likewise.
* sysdeps/sparc/sparc64/dl-machine.h: Likewise.
* sysdeps/x86_64/dl-machine.h: Likewise.
* sysdeps/powerpc/dl-start.S (_dl_start_user): Likewise.
* elf/Versions: Don't export _dl_check_all_versions, _dl_sysdep_start,
and _dl_debug_initialize.
2002-02-03 01:31:37 +01:00
|
|
|
|
extern void _dl_start_profile_internal (struct link_map *map,
|
|
|
|
|
const char *output_dir)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* The actual functions used to keep book on the calls. */
|
|
|
|
|
extern void _dl_mcount (ElfW(Addr) frompc, ElfW(Addr) selfpc);
|
2002-03-15 06:20:35 +01:00
|
|
|
|
extern void _dl_mcount_internal (ElfW(Addr) frompc, ElfW(Addr) selfpc)
|
|
|
|
|
attribute_hidden;
|
2000-03-23 21:31:46 +01:00
|
|
|
|
|
|
|
|
|
/* This function is simply a wrapper around the _dl_mcount function
|
|
|
|
|
which does not require a FROMPC parameter since this is the
|
|
|
|
|
calling function. */
|
|
|
|
|
extern void _dl_mcount_wrapper (void *selfpc);
|
|
|
|
|
|
|
|
|
|
/* Show the members of the auxiliary array passed up from the kernel. */
|
|
|
|
|
extern void _dl_show_auxv (void) internal_function;
|
|
|
|
|
|
|
|
|
|
/* Return all environment variables starting with `LD_', one after the
|
|
|
|
|
other. */
|
|
|
|
|
extern char *_dl_next_ld_env_entry (char ***position) internal_function;
|
|
|
|
|
|
|
|
|
|
/* Return an array with the names of the important hardware capabilities. */
|
|
|
|
|
extern const struct r_strlenpair *_dl_important_hwcaps (const char *platform,
|
|
|
|
|
size_t paltform_len,
|
|
|
|
|
size_t *sz,
|
|
|
|
|
size_t *max_capstrlen)
|
|
|
|
|
internal_function;
|
|
|
|
|
|
2000-12-05 18:34:28 +01:00
|
|
|
|
/* Look up NAME in ld.so.cache and return the file name stored there,
|
|
|
|
|
or null if none is found. */
|
|
|
|
|
extern const char *_dl_load_cache_lookup (const char *name)
|
|
|
|
|
internal_function;
|
|
|
|
|
|
|
|
|
|
/* If the system does not support MAP_COPY we cannot leave the file open
|
|
|
|
|
all the time since this would create problems when the file is replaced.
|
|
|
|
|
Therefore we provide this function to close the file and open it again
|
|
|
|
|
once needed. */
|
|
|
|
|
extern void _dl_unload_cache (void);
|
2002-08-25 22:14:50 +02:00
|
|
|
|
extern void _dl_unload_cache_internal (void) attribute_hidden;
|
2000-12-05 18:34:28 +01:00
|
|
|
|
|
2001-11-08 02:48:57 +01:00
|
|
|
|
/* System-dependent function to read a file's whole contents in the
|
|
|
|
|
most convenient manner available. *SIZEP gets the size of the
|
|
|
|
|
file. On error MAP_FAILED is returned. */
|
2000-12-05 18:34:28 +01:00
|
|
|
|
extern void *_dl_sysdep_read_whole_file (const char *file, size_t *sizep,
|
|
|
|
|
int prot)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-12-05 18:34:28 +01:00
|
|
|
|
|
|
|
|
|
/* System-specific function to do initial startup for the dynamic linker.
|
|
|
|
|
After this, file access calls and getenv must work. This is responsible
|
|
|
|
|
for setting __libc_enable_secure if we need to be secure (e.g. setuid),
|
|
|
|
|
and for setting _dl_argc and _dl_argv, and then calling _dl_main. */
|
|
|
|
|
extern ElfW(Addr) _dl_sysdep_start (void **start_argptr,
|
|
|
|
|
void (*dl_main) (const ElfW(Phdr) *phdr,
|
|
|
|
|
ElfW(Word) phnum,
|
2002-08-25 22:14:50 +02:00
|
|
|
|
ElfW(Addr) *user_entry))
|
|
|
|
|
attribute_hidden;
|
2000-12-05 18:34:28 +01:00
|
|
|
|
|
|
|
|
|
extern void _dl_sysdep_start_cleanup (void)
|
2002-08-25 22:14:50 +02:00
|
|
|
|
internal_function attribute_hidden;
|
2000-12-05 18:34:28 +01:00
|
|
|
|
|
|
|
|
|
|
2002-02-07 05:08:19 +01:00
|
|
|
|
/* Determine next available module ID. */
|
|
|
|
|
extern size_t _dl_next_tls_modid (void) internal_function;
|
|
|
|
|
|
|
|
|
|
/* Calculate offset of the TLS blocks in the static TLS block. */
|
2002-02-13 09:03:56 +01:00
|
|
|
|
extern void _dl_determine_tlsoffset (void) internal_function;
|
2002-02-07 05:08:19 +01:00
|
|
|
|
|
2002-08-20 09:22:11 +02:00
|
|
|
|
/* Allocate memory for static TLS block (unless MEM is nonzero) and dtv. */
|
|
|
|
|
extern void *_dl_allocate_tls (void *mem) internal_function;
|
|
|
|
|
|
|
|
|
|
/* Get size and alignment requirements of the static TLS block. */
|
|
|
|
|
extern void _dl_get_tls_static_info (size_t *sizep, size_t *alignp)
|
|
|
|
|
internal_function;
|
2002-08-05 03:21:25 +02:00
|
|
|
|
|
|
|
|
|
/* These are internal entry points to the two halves of _dl_allocate_tls,
|
|
|
|
|
only used within rtld.c itself at startup time. */
|
|
|
|
|
extern void *_dl_allocate_tls_storage (void)
|
|
|
|
|
internal_function attribute_hidden;
|
|
|
|
|
extern void *_dl_allocate_tls_init (void *)
|
|
|
|
|
internal_function attribute_hidden;
|
2002-02-23 08:59:56 +01:00
|
|
|
|
|
|
|
|
|
/* Deallocate memory allocated with _dl_allocate_tls. */
|
2002-08-20 09:22:11 +02:00
|
|
|
|
extern void _dl_deallocate_tls (void *tcb, bool dealloc_tcb) internal_function;
|
2002-02-07 05:08:19 +01:00
|
|
|
|
|
2002-02-13 09:03:56 +01:00
|
|
|
|
/* Return the symbol address given the map of the module it is in and
|
|
|
|
|
the symbol record. */
|
|
|
|
|
extern void *_dl_tls_symaddr (struct link_map *map, const ElfW(Sym) *ref)
|
|
|
|
|
internal_function;
|
|
|
|
|
|
2000-03-23 21:31:46 +01:00
|
|
|
|
__END_DECLS
|
|
|
|
|
|
|
|
|
|
#endif /* ldsodefs.h */
|