632 lines
19 KiB
C
632 lines
19 KiB
C
/* Load a shared object at runtime, relocate it, and run its initializer.
|
|
Copyright (C) 1996-2001, 2002, 2003, 2004 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
|
|
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.
|
|
|
|
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
|
|
Lesser General Public License for more details.
|
|
|
|
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. */
|
|
|
|
#include <assert.h>
|
|
#include <dlfcn.h>
|
|
#include <errno.h>
|
|
#include <libintl.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/mman.h> /* Check whether MAP_COPY is defined. */
|
|
#include <sys/param.h>
|
|
#include <bits/libc-lock.h>
|
|
#include <ldsodefs.h>
|
|
#include <bp-sym.h>
|
|
#include <caller.h>
|
|
|
|
#include <dl-dst.h>
|
|
|
|
|
|
#ifndef SHARED
|
|
/* Giving this initialized value preallocates some surplus bytes in the
|
|
static TLS area, see __libc_setup_tls (libc-tls.c). */
|
|
size_t _dl_tls_static_size = 2048;
|
|
#endif
|
|
|
|
extern ElfW(Addr) _dl_sysdep_start (void **start_argptr,
|
|
void (*dl_main) (const ElfW(Phdr) *phdr,
|
|
ElfW(Word) phnum,
|
|
ElfW(Addr) *user_entry));
|
|
weak_extern (BP_SYM (_dl_sysdep_start))
|
|
|
|
extern int __libc_multiple_libcs; /* Defined in init-first.c. */
|
|
|
|
extern int __libc_argc attribute_hidden;
|
|
extern char **__libc_argv attribute_hidden;
|
|
|
|
extern char **__environ;
|
|
|
|
/* Undefine the following for debugging. */
|
|
/* #define SCOPE_DEBUG 1 */
|
|
#ifdef SCOPE_DEBUG
|
|
static void show_scope (struct link_map *new);
|
|
#endif
|
|
|
|
/* We must be carefull not to leave us in an inconsistent state. Thus we
|
|
catch any error and re-raise it after cleaning up. */
|
|
|
|
struct dl_open_args
|
|
{
|
|
const char *file;
|
|
int mode;
|
|
/* This is the caller of the dlopen() function. */
|
|
const void *caller_dlopen;
|
|
/* This is the caller if _dl_open(). */
|
|
const void *caller_dl_open;
|
|
struct link_map *map;
|
|
};
|
|
|
|
|
|
static int
|
|
add_to_global (struct link_map *new)
|
|
{
|
|
struct link_map **new_global;
|
|
unsigned int to_add = 0;
|
|
unsigned int cnt;
|
|
|
|
/* Count the objects we have to put in the global scope. */
|
|
for (cnt = 0; cnt < new->l_searchlist.r_nlist; ++cnt)
|
|
if (new->l_searchlist.r_list[cnt]->l_global == 0)
|
|
++to_add;
|
|
|
|
/* The symbols of the new objects and its dependencies are to be
|
|
introduced into the global scope that will be used to resolve
|
|
references from other dynamically-loaded objects.
|
|
|
|
The global scope is the searchlist in the main link map. We
|
|
extend this list if necessary. There is one problem though:
|
|
since this structure was allocated very early (before the libc
|
|
is loaded) the memory it uses is allocated by the malloc()-stub
|
|
in the ld.so. When we come here these functions are not used
|
|
anymore. Instead the malloc() implementation of the libc is
|
|
used. But this means the block from the main map cannot be used
|
|
in an realloc() call. Therefore we allocate a completely new
|
|
array the first time we have to add something to the locale scope. */
|
|
|
|
if (GL(dl_global_scope_alloc) == 0)
|
|
{
|
|
/* This is the first dynamic object given global scope. */
|
|
GL(dl_global_scope_alloc) = GL(dl_main_searchlist)->r_nlist + to_add + 8;
|
|
new_global = (struct link_map **)
|
|
malloc (GL(dl_global_scope_alloc) * sizeof (struct link_map *));
|
|
if (new_global == NULL)
|
|
{
|
|
GL(dl_global_scope_alloc) = 0;
|
|
nomem:
|
|
GLRO(dl_signal_error) (ENOMEM, new->l_libname->name, NULL,
|
|
N_("cannot extend global scope"));
|
|
return 1;
|
|
}
|
|
|
|
/* Copy over the old entries. */
|
|
memcpy (new_global, GL(dl_main_searchlist)->r_list,
|
|
(GL(dl_main_searchlist)->r_nlist * sizeof (struct link_map *)));
|
|
|
|
GL(dl_main_searchlist)->r_list = new_global;
|
|
}
|
|
else if (GL(dl_main_searchlist)->r_nlist + to_add
|
|
> GL(dl_global_scope_alloc))
|
|
{
|
|
/* We have to extend the existing array of link maps in the
|
|
main map. */
|
|
new_global = (struct link_map **)
|
|
realloc (GL(dl_main_searchlist)->r_list,
|
|
((GL(dl_global_scope_alloc) + to_add + 8)
|
|
* sizeof (struct link_map *)));
|
|
if (new_global == NULL)
|
|
goto nomem;
|
|
|
|
GL(dl_global_scope_alloc) += to_add + 8;
|
|
GL(dl_main_searchlist)->r_list = new_global;
|
|
}
|
|
|
|
/* Now add the new entries. */
|
|
for (cnt = 0; cnt < new->l_searchlist.r_nlist; ++cnt)
|
|
{
|
|
struct link_map *map = new->l_searchlist.r_list[cnt];
|
|
|
|
if (map->l_global == 0)
|
|
{
|
|
map->l_global = 1;
|
|
GL(dl_main_searchlist)->r_list[GL(dl_main_searchlist)->r_nlist]
|
|
= map;
|
|
++GL(dl_main_searchlist)->r_nlist;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void
|
|
dl_open_worker (void *a)
|
|
{
|
|
struct dl_open_args *args = a;
|
|
const char *file = args->file;
|
|
int mode = args->mode;
|
|
struct link_map *new, *l;
|
|
int lazy;
|
|
unsigned int i;
|
|
#ifdef USE_TLS
|
|
bool any_tls;
|
|
#endif
|
|
struct link_map *call_map = NULL;
|
|
|
|
/* Check whether _dl_open() has been called from a valid DSO. */
|
|
if (__check_caller (args->caller_dl_open, allow_libc|allow_libdl) != 0)
|
|
GLRO(dl_signal_error) (0, "dlopen", NULL, N_("invalid caller"));
|
|
|
|
/* Determine the caller's map if necessary. This is needed in case
|
|
we have a DST or when the file name has no path in which case we
|
|
need to look along the RUNPATH/RPATH of the caller. */
|
|
const char *dst = strchr (file, '$');
|
|
if (dst != NULL || strchr (file, '/') == NULL)
|
|
{
|
|
const void *caller_dlopen = args->caller_dlopen;
|
|
|
|
/* We have to find out from which object the caller is calling. */
|
|
call_map = NULL;
|
|
for (l = GL(dl_loaded); l; l = l->l_next)
|
|
if (caller_dlopen >= (const void *) l->l_map_start
|
|
&& caller_dlopen < (const void *) l->l_map_end)
|
|
{
|
|
/* There must be exactly one DSO for the range of the virtual
|
|
memory. Otherwise something is really broken. */
|
|
call_map = l;
|
|
break;
|
|
}
|
|
|
|
if (call_map == NULL)
|
|
/* In this case we assume this is the main application. */
|
|
call_map = GL(dl_loaded);
|
|
}
|
|
|
|
/* Maybe we have to expand a DST. */
|
|
if (__builtin_expect (dst != NULL, 0))
|
|
{
|
|
size_t len = strlen (file);
|
|
size_t required;
|
|
char *new_file;
|
|
|
|
/* DSTs must not appear in SUID/SGID programs. */
|
|
if (__libc_enable_secure)
|
|
/* This is an error. */
|
|
GLRO(dl_signal_error) (0, "dlopen", NULL,
|
|
N_("DST not allowed in SUID/SGID programs"));
|
|
|
|
|
|
/* Determine how much space we need. We have to allocate the
|
|
memory locally. */
|
|
required = DL_DST_REQUIRED (call_map, file, len, _dl_dst_count (dst, 0));
|
|
|
|
/* Get space for the new file name. */
|
|
new_file = (char *) alloca (required + 1);
|
|
|
|
/* Generate the new file name. */
|
|
_dl_dst_substitute (call_map, file, new_file, 0);
|
|
|
|
/* If the substitution failed don't try to load. */
|
|
if (*new_file == '\0')
|
|
GLRO(dl_signal_error) (0, "dlopen", NULL,
|
|
N_("empty dynamic string token substitution"));
|
|
|
|
/* Now we have a new file name. */
|
|
file = new_file;
|
|
|
|
/* It does not matter whether call_map is set even if we
|
|
computed it only because of the DST. Since the path contains
|
|
a slash the value is not used. See dl-load.c. */
|
|
}
|
|
|
|
/* Load the named object. */
|
|
args->map = new = GLRO(dl_map_object) (call_map, file, 0, lt_loaded, 0,
|
|
mode | __RTLD_CALLMAP);
|
|
|
|
/* If the pointer returned is NULL this means the RTLD_NOLOAD flag is
|
|
set and the object is not already loaded. */
|
|
if (new == NULL)
|
|
{
|
|
assert (mode & RTLD_NOLOAD);
|
|
return;
|
|
}
|
|
|
|
if (__builtin_expect (mode & __RTLD_SPROF, 0))
|
|
/* This happens only if we load a DSO for 'sprof'. */
|
|
return;
|
|
|
|
/* It was already open. */
|
|
if (__builtin_expect (new->l_searchlist.r_list != NULL, 0))
|
|
{
|
|
/* Let the user know about the opencount. */
|
|
if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
|
|
GLRO(dl_debug_printf) ("opening file=%s; opencount == %u\n\n",
|
|
new->l_name, new->l_opencount);
|
|
|
|
/* If the user requested the object to be in the global namespace
|
|
but it is not so far, add it now. */
|
|
if ((mode & RTLD_GLOBAL) && new->l_global == 0)
|
|
(void) add_to_global (new);
|
|
|
|
/* Increment just the reference counter of the object. */
|
|
++new->l_opencount;
|
|
|
|
return;
|
|
}
|
|
|
|
/* Load that object's dependencies. */
|
|
GLRO(dl_map_object_deps) (new, NULL, 0, 0,
|
|
mode & (__RTLD_DLOPEN | RTLD_DEEPBIND));
|
|
|
|
/* So far, so good. Now check the versions. */
|
|
for (i = 0; i < new->l_searchlist.r_nlist; ++i)
|
|
if (new->l_searchlist.r_list[i]->l_versions == NULL)
|
|
(void) GLRO(dl_check_map_versions) (new->l_searchlist.r_list[i], 0, 0);
|
|
|
|
#ifdef SCOPE_DEBUG
|
|
show_scope (new);
|
|
#endif
|
|
|
|
/* Only do lazy relocation if `LD_BIND_NOW' is not set. */
|
|
lazy = (mode & RTLD_BINDING_MASK) == RTLD_LAZY && GLRO(dl_lazy);
|
|
|
|
/* Relocate the objects loaded. We do this in reverse order so that copy
|
|
relocs of earlier objects overwrite the data written by later objects. */
|
|
|
|
l = new;
|
|
while (l->l_next)
|
|
l = l->l_next;
|
|
while (1)
|
|
{
|
|
if (! l->l_relocated)
|
|
{
|
|
#ifdef SHARED
|
|
if (GLRO(dl_profile) != NULL)
|
|
{
|
|
/* If this here is the shared object which we want to profile
|
|
make sure the profile is started. We can find out whether
|
|
this is necessary or not by observing the `_dl_profile_map'
|
|
variable. If was NULL but is not NULL afterwars we must
|
|
start the profiling. */
|
|
struct link_map *old_profile_map = GL(dl_profile_map);
|
|
|
|
GLRO(dl_relocate_object) (l, l->l_scope, 1, 1);
|
|
|
|
if (old_profile_map == NULL && GL(dl_profile_map) != NULL)
|
|
{
|
|
/* We must prepare the profiling. */
|
|
GLRO(dl_start_profile) ();
|
|
|
|
/* Prevent unloading the object. */
|
|
GL(dl_profile_map)->l_flags_1 |= DF_1_NODELETE;
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
GLRO(dl_relocate_object) (l, l->l_scope, lazy, 0);
|
|
}
|
|
|
|
if (l == new)
|
|
break;
|
|
l = l->l_prev;
|
|
}
|
|
|
|
#ifdef USE_TLS
|
|
/* Do static TLS initialization now if it has been delayed because
|
|
the TLS template might not be fully relocated at _dl_allocate_static_tls
|
|
time. */
|
|
for (l = new; l; l = l->l_next)
|
|
if (l->l_need_tls_init)
|
|
{
|
|
l->l_need_tls_init = 0;
|
|
GL(dl_init_static_tls) (l);
|
|
}
|
|
|
|
/* We normally don't bump the TLS generation counter. There must be
|
|
actually a need to do this. */
|
|
any_tls = false;
|
|
#endif
|
|
|
|
/* Increment the open count for all dependencies. If the file is
|
|
not loaded as a dependency here add the search list of the newly
|
|
loaded object to the scope. */
|
|
for (i = 0; i < new->l_searchlist.r_nlist; ++i)
|
|
if (++new->l_searchlist.r_list[i]->l_opencount > 1
|
|
&& new->l_searchlist.r_list[i]->l_type == lt_loaded)
|
|
{
|
|
struct link_map *imap = new->l_searchlist.r_list[i];
|
|
struct r_scope_elem **runp = imap->l_scope;
|
|
size_t cnt = 0;
|
|
|
|
while (*runp != NULL)
|
|
{
|
|
/* This can happen if imap was just loaded, but during
|
|
relocation had l_opencount bumped because of relocation
|
|
dependency. Avoid duplicates in l_scope. */
|
|
if (__builtin_expect (*runp == &new->l_searchlist, 0))
|
|
break;
|
|
|
|
++cnt;
|
|
++runp;
|
|
}
|
|
|
|
if (*runp != NULL)
|
|
/* Avoid duplicates. */
|
|
continue;
|
|
|
|
if (__builtin_expect (cnt + 1 >= imap->l_scope_max, 0))
|
|
{
|
|
/* The 'r_scope' array is too small. Allocate a new one
|
|
dynamically. */
|
|
struct r_scope_elem **newp;
|
|
size_t new_size = imap->l_scope_max * 2;
|
|
|
|
if (imap->l_scope == imap->l_scope_mem)
|
|
{
|
|
newp = (struct r_scope_elem **)
|
|
malloc (new_size * sizeof (struct r_scope_elem *));
|
|
if (newp == NULL)
|
|
GLRO(dl_signal_error) (ENOMEM, "dlopen", NULL,
|
|
N_("cannot create scope list"));
|
|
imap->l_scope = memcpy (newp, imap->l_scope,
|
|
cnt * sizeof (imap->l_scope[0]));
|
|
}
|
|
else
|
|
{
|
|
newp = (struct r_scope_elem **)
|
|
realloc (imap->l_scope,
|
|
new_size * sizeof (struct r_scope_elem *));
|
|
if (newp == NULL)
|
|
GLRO(dl_signal_error) (ENOMEM, "dlopen", NULL,
|
|
N_("cannot create scope list"));
|
|
imap->l_scope = newp;
|
|
}
|
|
|
|
imap->l_scope_max = new_size;
|
|
}
|
|
|
|
imap->l_scope[cnt++] = &new->l_searchlist;
|
|
imap->l_scope[cnt] = NULL;
|
|
}
|
|
#if USE_TLS
|
|
else if (new->l_searchlist.r_list[i]->l_opencount == 1
|
|
/* Only if the module defines thread local data. */
|
|
&& __builtin_expect (new->l_searchlist.r_list[i]->l_tls_blocksize
|
|
> 0, 0))
|
|
{
|
|
/* Now that we know the object is loaded successfully add
|
|
modules containing TLS data to the dtv info table. We
|
|
might have to increase its size. */
|
|
struct dtv_slotinfo_list *listp;
|
|
struct dtv_slotinfo_list *prevp;
|
|
size_t idx = new->l_searchlist.r_list[i]->l_tls_modid;
|
|
|
|
assert (new->l_searchlist.r_list[i]->l_type == lt_loaded);
|
|
|
|
/* Find the place in the dtv slotinfo list. */
|
|
listp = GL(dl_tls_dtv_slotinfo_list);
|
|
prevp = NULL; /* Needed to shut up gcc. */
|
|
do
|
|
{
|
|
/* Does it fit in the array of this list element? */
|
|
if (idx < listp->len)
|
|
break;
|
|
idx -= listp->len;
|
|
prevp = listp;
|
|
listp = listp->next;
|
|
}
|
|
while (listp != NULL);
|
|
|
|
if (listp == NULL)
|
|
{
|
|
/* When we come here it means we have to add a new element
|
|
to the slotinfo list. And the new module must be in
|
|
the first slot. */
|
|
assert (idx == 0);
|
|
|
|
listp = prevp->next = (struct dtv_slotinfo_list *)
|
|
malloc (sizeof (struct dtv_slotinfo_list)
|
|
+ TLS_SLOTINFO_SURPLUS * sizeof (struct dtv_slotinfo));
|
|
if (listp == NULL)
|
|
{
|
|
/* We ran out of memory. We will simply fail this
|
|
call but don't undo anything we did so far. The
|
|
application will crash or be terminated anyway very
|
|
soon. */
|
|
|
|
/* We have to do this since some entries in the dtv
|
|
slotinfo array might already point to this
|
|
generation. */
|
|
++GL(dl_tls_generation);
|
|
|
|
GLRO(dl_signal_error) (ENOMEM, "dlopen", NULL, N_("\
|
|
cannot create TLS data structures"));
|
|
}
|
|
|
|
listp->len = TLS_SLOTINFO_SURPLUS;
|
|
listp->next = NULL;
|
|
memset (listp->slotinfo, '\0',
|
|
TLS_SLOTINFO_SURPLUS * sizeof (struct dtv_slotinfo));
|
|
}
|
|
|
|
/* Add the information into the slotinfo data structure. */
|
|
listp->slotinfo[idx].map = new->l_searchlist.r_list[i];
|
|
listp->slotinfo[idx].gen = GL(dl_tls_generation) + 1;
|
|
|
|
/* We have to bump the generation counter. */
|
|
any_tls = true;
|
|
}
|
|
|
|
/* Bump the generation number if necessary. */
|
|
if (any_tls)
|
|
if (__builtin_expect (++GL(dl_tls_generation) == 0, 0))
|
|
__libc_fatal (_("TLS generation counter wrapped! Please send report with the 'glibcbug' script."));
|
|
#endif
|
|
|
|
/* Run the initializer functions of new objects. */
|
|
GLRO(dl_init) (new, __libc_argc, __libc_argv, __environ);
|
|
|
|
/* Now we can make the new map available in the global scope. */
|
|
if (mode & RTLD_GLOBAL)
|
|
/* Move the object in the global namespace. */
|
|
if (add_to_global (new) != 0)
|
|
/* It failed. */
|
|
return;
|
|
|
|
/* Mark the object as not deletable if the RTLD_NODELETE flags was
|
|
passed. */
|
|
if (__builtin_expect (mode & RTLD_NODELETE, 0))
|
|
new->l_flags_1 |= DF_1_NODELETE;
|
|
|
|
#ifndef SHARED
|
|
/* We must be the static _dl_open in libc.a. A static program that
|
|
has loaded a dynamic object now has competition. */
|
|
__libc_multiple_libcs = 1;
|
|
#endif
|
|
|
|
/* Let the user know about the opencount. */
|
|
if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
|
|
GLRO(dl_debug_printf) ("opening file=%s; opencount == %u\n\n",
|
|
new->l_name, new->l_opencount);
|
|
}
|
|
|
|
|
|
void *
|
|
internal_function
|
|
_dl_open (const char *file, int mode, const void *caller_dlopen)
|
|
{
|
|
struct dl_open_args args;
|
|
const char *objname;
|
|
const char *errstring;
|
|
int errcode;
|
|
|
|
if ((mode & RTLD_BINDING_MASK) == 0)
|
|
/* One of the flags must be set. */
|
|
GLRO(dl_signal_error) (EINVAL, file, NULL,
|
|
N_("invalid mode for dlopen()"));
|
|
|
|
/* Make sure we are alone. */
|
|
__rtld_lock_lock_recursive (GL(dl_load_lock));
|
|
|
|
args.file = file;
|
|
args.mode = mode;
|
|
args.caller_dlopen = caller_dlopen;
|
|
args.caller_dl_open = RETURN_ADDRESS (0);
|
|
args.map = NULL;
|
|
errcode = GLRO(dl_catch_error) (&objname, &errstring, dl_open_worker, &args);
|
|
|
|
#ifndef MAP_COPY
|
|
/* We must munmap() the cache file. */
|
|
GLRO(dl_unload_cache) ();
|
|
#endif
|
|
|
|
/* Release the lock. */
|
|
__rtld_lock_unlock_recursive (GL(dl_load_lock));
|
|
|
|
if (__builtin_expect (errstring != NULL, 0))
|
|
{
|
|
/* Some error occurred during loading. */
|
|
char *local_errstring;
|
|
size_t len_errstring;
|
|
|
|
/* Remove the object from memory. It may be in an inconsistent
|
|
state if relocation failed, for example. */
|
|
if (args.map)
|
|
{
|
|
unsigned int i;
|
|
|
|
/* Increment open counters for all objects since this
|
|
sometimes has not happened yet. */
|
|
if (args.map->l_searchlist.r_list[0]->l_opencount == 0)
|
|
for (i = 0; i < args.map->l_searchlist.r_nlist; ++i)
|
|
++args.map->l_searchlist.r_list[i]->l_opencount;
|
|
|
|
#ifdef USE_TLS
|
|
/* Maybe some of the modules which were loaded uses TLS.
|
|
Since it will be removed in the following _dl_close call
|
|
we have to mark the dtv array as having gaps to fill
|
|
the holes. This is a pessimistic assumption which won't
|
|
hurt if not true. */
|
|
GL(dl_tls_dtv_gaps) = true;
|
|
#endif
|
|
|
|
_dl_close (args.map);
|
|
}
|
|
|
|
/* Make a local copy of the error string so that we can release the
|
|
memory allocated for it. */
|
|
len_errstring = strlen (errstring) + 1;
|
|
if (objname == errstring + len_errstring)
|
|
{
|
|
size_t total_len = len_errstring + strlen (objname) + 1;
|
|
local_errstring = alloca (total_len);
|
|
memcpy (local_errstring, errstring, total_len);
|
|
objname = local_errstring + len_errstring;
|
|
}
|
|
else
|
|
{
|
|
local_errstring = alloca (len_errstring);
|
|
memcpy (local_errstring, errstring, len_errstring);
|
|
}
|
|
|
|
if (errstring != _dl_out_of_memory)
|
|
free ((char *) errstring);
|
|
|
|
/* Reraise the error. */
|
|
GLRO(dl_signal_error) (errcode, objname, NULL, local_errstring);
|
|
}
|
|
|
|
#ifndef SHARED
|
|
DL_STATIC_INIT (args.map);
|
|
#endif
|
|
|
|
return args.map;
|
|
}
|
|
libc_hidden_def (_dl_open)
|
|
|
|
|
|
#ifdef SCOPE_DEBUG
|
|
#include <unistd.h>
|
|
|
|
static void
|
|
show_scope (struct link_map *new)
|
|
{
|
|
int scope_cnt;
|
|
|
|
for (scope_cnt = 0; new->l_scope[scope_cnt] != NULL; ++scope_cnt)
|
|
{
|
|
char numbuf[2];
|
|
unsigned int cnt;
|
|
|
|
numbuf[0] = '0' + scope_cnt;
|
|
numbuf[1] = '\0';
|
|
_dl_printf ("scope %s:", numbuf);
|
|
|
|
for (cnt = 0; cnt < new->l_scope[scope_cnt]->r_nlist; ++cnt)
|
|
if (*new->l_scope[scope_cnt]->r_list[cnt]->l_name)
|
|
_dl_printf (" %s", new->l_scope[scope_cnt]->r_list[cnt]->l_name);
|
|
else
|
|
_dl_printf (" <main>");
|
|
|
|
_dl_printf ("\n");
|
|
}
|
|
}
|
|
#endif
|