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authorUlrich Drepper <drepper@redhat.com>1998-09-01 17:19:00 +0000
committerUlrich Drepper <drepper@redhat.com>1998-09-01 17:19:00 +0000
commita8a1269d8814fe54d5d25619ca138849bca29b78 (patch)
treee0b08b062f4003cdb7912c771517fb6a3df0fb91 /elf
parent052b6a6c94cc330dfbc09ff7b5f03c943deb7ca2 (diff)
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Update.
1998-09-01 15:36 Ulrich Drepper <drepper@cygnus.com> * malloc/Makefile: Include Makeconfig before testing config-sysdirs. * malloc/mtrace.c: Add bug report address. Update email address. Add more @XXX@ to print correct address size. * elf/dl-addr.c (_dl_addr): Make sure that map to be examined is really initialized. * elf/dl-close.c (_dl_close): Use l_map_start and l_map_end info for munmap call instead of examining phdr again. Free all malloc()ed strings and arrays.
Diffstat (limited to 'elf')
-rw-r--r--elf/dl-addr.c4
-rw-r--r--elf/dl-close.c49
2 files changed, 27 insertions, 26 deletions
diff --git a/elf/dl-addr.c b/elf/dl-addr.c
index f88f749b8a..2c9a9dd84e 100644
--- a/elf/dl-addr.c
+++ b/elf/dl-addr.c
@@ -34,7 +34,9 @@ _dl_addr (const void *address, Dl_info *info)
/* Find the highest-addressed object that ADDRESS is not below. */
match = NULL;
for (l = _dl_loaded; l; l = l->l_next)
- if (addr >= l->l_addr && (!match || match->l_addr < l->l_addr))
+ if (l->l_addr != 0 /* Make sure we do not currently set this map up
+ in this moment. */
+ && addr >= l->l_addr && (!match || match->l_addr < l->l_addr))
match = l;
if (match)
diff --git a/elf/dl-close.c b/elf/dl-close.c
index 0851e20193..e89e46d51f 100644
--- a/elf/dl-close.c
+++ b/elf/dl-close.c
@@ -89,11 +89,6 @@ _dl_close (struct link_map *map)
for (i = 0; i < nsearchlist; ++i)
--list[i]->l_opencount;
- if (map->l_origin != NULL)
- free ((char *) map->l_origin);
- /* The name always is allocated. */
- free (map->l_name);
-
/* Check each element of the search list to see if all references to
it are gone. */
for (i = 0; i < nsearchlist; ++i)
@@ -101,12 +96,10 @@ _dl_close (struct link_map *map)
struct link_map *imap = list[i];
if (imap->l_opencount == 0 && imap->l_type == lt_loaded)
{
+ struct libname_list *lnp;
+
/* That was the last reference, and this was a dlopen-loaded
object. We can unmap it. */
- const ElfW(Phdr) *ph;
- const ElfW(Phdr) *first, *last;
- ElfW(Addr) mapstart, mapend;
-
if (imap->l_global)
{
/* This object is in the global scope list. Remove it. */
@@ -122,22 +115,11 @@ _dl_close (struct link_map *map)
--_dl_global_scope_end;
}
- /* We can unmap all the maps at once. We just have to determine
- the length and the `munmap' call does the rest. */
- first = last = NULL;
- for (ph = imap->l_phdr; ph < imap->l_phdr + imap->l_phnum; ++ph)
- if (ph->p_type == PT_LOAD)
- {
- if (first == NULL)
- first = ph;
- last = ph;
- }
-
- /* Now we have all the information we need for the unmapping.
- See the method used in `_dl_map_object_from_fd'. */
- mapstart = first->p_vaddr & ~(first->p_align - 1);
- mapend = last->p_vaddr + last->p_memsz;
- __munmap ((caddr_t) (imap->l_addr + mapstart), mapend - mapstart);
+ /* We can unmap all the maps at once. We determined the
+ length when we loaded the object and `munmap' call does
+ the rest. */
+ __munmap ((void *) imap->l_map_start,
+ imap->l_map_end - imap->l_map_start);
/* Finally, unlink the data structure and free it. */
#ifdef PIC
@@ -155,6 +137,23 @@ _dl_close (struct link_map *map)
imap->l_next->l_prev = imap->l_prev;
if (imap->l_searchlist && imap->l_searchlist != list)
free (imap->l_searchlist);
+
+ if (imap->l_versions != NULL)
+ free (imap->l_versions);
+ if (imap->l_origin != NULL)
+ free ((char *) imap->l_origin);
+
+ /* These names always is allocated. */
+ free (imap->l_name);
+ lnp = imap->l_libname;
+ do
+ {
+ free (lnp->name);
+ lnp = lnp->next;
+ }
+ while (lnp != NULL);
+ free (imap->l_libname);
+
free (imap);
}
}