diff options
Diffstat (limited to 'elf/dl-close.c')
| -rw-r--r-- | elf/dl-close.c | 64 |
1 files changed, 35 insertions, 29 deletions
diff --git a/elf/dl-close.c b/elf/dl-close.c index 51b958d..cd4fa7c 100644 --- a/elf/dl-close.c +++ b/elf/dl-close.c @@ -136,15 +136,9 @@ _dl_close (void *_map) return; } -#define NWORDS(n) (((n) + 8 * sizeof (unsigned long int) - 1) \ - / (sizeof (unsigned long int))) -#define SETBIT(a, n) a[(n) / sizeof (unsigned long int)] \ - |= 1 << ((n) % (sizeof (unsigned long int))) -#define ISSET(a, n) (a[(n) / sizeof (unsigned long int)] \ - & 1 << ((n) % (sizeof (unsigned long int)))) const unsigned int nloaded = GL(dl_ns)[ns]._ns_nloaded; - unsigned long int used[NWORDS (nloaded)]; - unsigned long int done[NWORDS (nloaded)]; + char used[nloaded]; + char done[nloaded]; struct link_map *maps[nloaded]; /* Run over the list and assign indeces to the link maps and enter @@ -168,7 +162,7 @@ _dl_close (void *_map) { struct link_map *l = maps[done_index]; - if (ISSET (done, done_index)) + if (done[done_index]) /* Already handled. */ continue; @@ -176,12 +170,14 @@ _dl_close (void *_map) if (l->l_type == lt_loaded && l->l_direct_opencount == 0 && (l->l_flags_1 & DF_1_NODELETE) == 0 - && !ISSET (used, done_index)) + && !used[done_index]) continue; /* We need this object and we handle it now. */ - SETBIT (done, done_index); - SETBIT (used, done_index); + done[done_index] = 1; + used[done_index] = 1; + /* Signal the object is still needed. */ + l->l_idx = -1; /* Mark all dependencies as used. */ if (l->l_initfini != NULL) @@ -189,13 +185,16 @@ _dl_close (void *_map) struct link_map **lp = &l->l_initfini[1]; while (*lp != NULL) { - assert ((*lp)->l_idx >= 0 && (*lp)->l_idx < nloaded); - - if (!ISSET (used, (*lp)->l_idx)) + if ((*lp)->l_idx != -1) { - SETBIT (used, (*lp)->l_idx); - if ((*lp)->l_idx - 1 < done_index) - done_index = (*lp)->l_idx - 1; + assert ((*lp)->l_idx >= 0 && (*lp)->l_idx < nloaded); + + if (!used[(*lp)->l_idx]) + { + used[(*lp)->l_idx] = 1; + if ((*lp)->l_idx - 1 < done_index) + done_index = (*lp)->l_idx - 1; + } } ++lp; @@ -207,17 +206,23 @@ _dl_close (void *_map) { struct link_map *jmap = l->l_reldeps[j]; - assert (jmap->l_idx >= 0 && jmap->l_idx < nloaded); - - if (!ISSET (used, jmap->l_idx)) + if (jmap->l_idx != -1) { - SETBIT (used, jmap->l_idx); - if (jmap->l_idx - 1 < done_index) - done_index = jmap->l_idx - 1; + assert (jmap->l_idx >= 0 && jmap->l_idx < nloaded); + + if (!used[jmap->l_idx]) + { + used[jmap->l_idx] = 1; + if (jmap->l_idx - 1 < done_index) + done_index = jmap->l_idx - 1; + } } } } + /* Sort the entries. */ + _dl_sort_fini (GL(dl_ns)[ns]._ns_loaded, maps, nloaded, used, ns); + /* Call all termination functions at once. */ #ifdef SHARED bool do_audit = GLRO(dl_naudit) > 0 && !GL(dl_ns)[ns]._ns_loaded->l_auditing; @@ -231,7 +236,7 @@ _dl_close (void *_map) /* All elements must be in the same namespace. */ assert (imap->l_ns == ns); - if (!ISSET (used, i)) + if (!used[i]) { assert (imap->l_type == lt_loaded && (imap->l_flags_1 & DF_1_NODELETE) == 0); @@ -291,7 +296,7 @@ _dl_close (void *_map) if (i < first_loaded) first_loaded = i; } - /* Else ISSET (used, i). */ + /* Else used[i]. */ else if (imap->l_type == lt_loaded) { if (imap->l_searchlist.r_list == NULL @@ -320,8 +325,9 @@ _dl_close (void *_map) } } - /* The loader is gone, so mark the object as not having one. */ - if (imap->l_loader != NULL && !ISSET (used, imap->l_loader->l_idx)) + /* The loader is gone, so mark the object as not having one. + Note: l_idx == -1 -> object will be removed. */ + if (imap->l_loader != NULL && imap->l_loader->l_idx != -1) imap->l_loader = NULL; /* Remember where the first dynamically loaded object is. */ @@ -370,7 +376,7 @@ _dl_close (void *_map) for (i = first_loaded; i < nloaded; ++i) { struct link_map *imap = maps[i]; - if (!ISSET (used, i)) + if (!used[i]) { assert (imap->l_type == lt_loaded); |