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authorUlrich Drepper <drepper@redhat.com>2000-08-16 06:30:08 +0000
committerUlrich Drepper <drepper@redhat.com>2000-08-16 06:30:08 +0000
commit1ebba33ece5a998d3d79fa14adca3ae7985cbff5 (patch)
treec5e37a6ed7614a055548537d58d8ab58b94b3f9f /elf
parent74e61bb4e5fe0691d497f04cf71fbd4717da6db2 (diff)
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Update.
2000-08-15 Ulrich Drepper <drepper@redhat.com> * sysdeps/generic/ldsodefs.h: Declare _nl_nloaded. * elf/Versions [ld] (GLIBC_2.2): Add _nl_nloaded. * elf/dl-support.c: Define _nl_nloaded. * elf/rtld.c: Likewise. Increment _nl_nloaded for rtld itself. * elf/dl-object.c (_dl_new_object): Increment _nl_nloaded after adding object to global list. * elf/dl-close.c (_dl_close): Decrement _nl_nloaded after removing from _dl_loaded list. * elf/dl-load.c (_dl_map_object_from_fd): Likewise. * elf/dl-fini.c (_dl_fini): Use _nl_nloaded instead of computing the number here. * sysdeps/i386/fpu/fedisblxcpt.c (fedisableexcept): Mask, not unmask, exceptions. * sysdeps/i386/fpu/feenablxcpt.c (feenableexcept): Unmask, not mask, exceptions. Reported by Harvey J. Stein <hjstein@bfr.co.il>.
Diffstat (limited to 'elf')
-rw-r--r--elf/Versions2
-rw-r--r--elf/dl-close.c1
-rw-r--r--elf/dl-fini.c21
-rw-r--r--elf/dl-load.c3
-rw-r--r--elf/dl-object.c1
-rw-r--r--elf/dl-support.c2
-rw-r--r--elf/rtld.c3
7 files changed, 20 insertions, 13 deletions
diff --git a/elf/Versions b/elf/Versions
index bb8b5f5..789774b 100644
--- a/elf/Versions
+++ b/elf/Versions
@@ -52,7 +52,7 @@ ld {
_dl_dst_count; _dl_dst_substitute;
}
GLIBC_2.2 {
- _dl_init; _dl_load_lock; _dl_argv;
+ _dl_init; _dl_load_lock; _dl_argv; _dl_nloaded;
# this is defined in ld.so and overridden by libc
_dl_init_first;
diff --git a/elf/dl-close.c b/elf/dl-close.c
index 6bdedd1..cbbb2ae 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -166,6 +166,7 @@ _dl_close (void *_map)
else
_dl_loaded = imap->l_next;
#endif
+ --_dl_nloaded;
if (imap->l_next)
imap->l_next->l_prev = imap->l_prev;
diff --git a/elf/dl-fini.c b/elf/dl-fini.c
index 9b103ae..c7d4ebc 100644
--- a/elf/dl-fini.c
+++ b/elf/dl-fini.c
@@ -42,29 +42,28 @@ _dl_fini (void)
using `dlopen' there are possibly several other modules with its
dependencies to be taken into account. Therefore we have to start
determining the order of the modules once again from the beginning. */
- unsigned int nloaded = 0;
unsigned int i;
struct link_map *l;
struct link_map **maps;
- /* First count how many objects are there. */
- for (l = _dl_loaded; l != NULL; l = l->l_next)
- ++nloaded;
-
/* XXX Could it be (in static binaries) that there is no object loaded? */
- assert (nloaded > 0);
+ assert (_dl_nloaded > 0);
/* Now we can allocate an array to hold all the pointers and copy
the pointers in. */
- maps = (struct link_map **) alloca (nloaded * sizeof (struct link_map *));
- for (l = _dl_loaded, nloaded = 0; l != NULL; l = l->l_next)
+ maps = (struct link_map **) alloca (_dl_nloaded
+ * sizeof (struct link_map *));
+ for (l = _dl_loaded, i = 0; l != NULL; l = l->l_next)
{
- maps[nloaded++] = l;
+ assert (i < _dl_nloaded);
+
+ maps[i++] = l;
/* Bump l_opencount of all objects so that they are not dlclose()ed
from underneath us. */
++l->l_opencount;
}
+ assert (i == _dl_nloaded);
/* Now we have to do the sorting. */
for (l = _dl_loaded->l_next; l != NULL; l = l->l_next)
@@ -78,7 +77,7 @@ _dl_fini (void)
/* Find all object for which the current one is a dependency and
move the found object (if necessary) in front. */
- for (k = j + 1; k < nloaded; ++k)
+ for (k = j + 1; k < _dl_nloaded; ++k)
{
struct link_map **runp;
@@ -129,7 +128,7 @@ _dl_fini (void)
/* `maps' now contains the objects in the right order. Now call the
destructors. We have to process this array from the front. */
- for (i = 0; i < nloaded; ++i)
+ for (i = 0; i < _dl_nloaded; ++i)
{
l = maps[i];
diff --git a/elf/dl-load.c b/elf/dl-load.c
index a1e4e5a..ffaca6e 100644
--- a/elf/dl-load.c
+++ b/elf/dl-load.c
@@ -1105,13 +1105,14 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname,
{
/* Remove from the module list. */
assert (l->l_next == NULL);
-#ifdef SHARED
+#ifndef SHARED
if (l->l_prev == NULL)
/* No other module loaded. */
_dl_loaded = NULL;
else
#endif
l->l_prev->l_next = NULL;
+ --_dl_nloaded;
/* We are not supposed to load this object. Free all resources. */
__munmap ((void *) l->l_map_start, l->l_map_end - l->l_map_start);
diff --git a/elf/dl-object.c b/elf/dl-object.c
index 986929c..eab8840 100644
--- a/elf/dl-object.c
+++ b/elf/dl-object.c
@@ -67,6 +67,7 @@ _dl_new_object (char *realname, const char *libname, int type,
}
else
_dl_loaded = new;
+ ++_dl_nloaded;
/* This is our local scope. */
if (loader != NULL)
{
diff --git a/elf/dl-support.c b/elf/dl-support.c
index ec0bbb2..d2c8738 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -72,6 +72,8 @@ int _dl_bind_not;
/* Initially empty list of loaded objects. */
struct link_map *_dl_loaded;
+/* Number of object in the _dl_loaded list. */
+unsigned int _dl_nloaded;
/* Fake scope. In dynamically linked binaries this is the scope of the
main application but here we don't have something like this. So
diff --git a/elf/rtld.c b/elf/rtld.c
index 1d144c5..9a444fc 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -101,6 +101,8 @@ int _dl_bind_not;
/* This is a pointer to the map for the main object and through it to
all loaded objects. */
struct link_map *_dl_loaded;
+/* Number of object in the _dl_loaded list. */
+unsigned int _dl_nloaded;
/* Pointer to the l_searchlist element of the link map of the main object. */
struct r_scope_elem *_dl_main_searchlist;
/* Copy of the content of `_dl_main_searchlist'. */
@@ -670,6 +672,7 @@ of this helper program; chances are you did not intend to run this program.\n\
_dl_rtld_map.l_type = lt_library;
_dl_loaded->l_next = &_dl_rtld_map;
_dl_rtld_map.l_prev = _dl_loaded;
+ ++_dl_nloaded;
/* We have two ways to specify objects to preload: via environment
variable and via the file /etc/ld.so.preload. The latter can also