diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-addr.c | 4 | ||||
| -rw-r--r-- | elf/dl-close.c | 49 |
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); } } |