2011-10-12 07:03:21 +00:00
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Without this patch programs using alsa-lib crash (alsamixer for example).
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Removed Copyright reverts
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Upstream-Status: Pending
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http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=675155e9
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http://sourceware.org/ml/libc-alpha/2011-06/msg00006.html
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many distributions are using this already
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http://chakra-project.org/ccr/packages/glibc/glibc/PKGBUILD
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http://mailman.archlinux.org/pipermail/arch-commits/2011-June/137142.html
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http://svn.mandriva.com/cgi-bin/viewvc.cgi/packages/cooker/glibc/current/SOURCES/glibc-2.14-libdl-crash.patch?view=markup&pathrev=691343
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http://repos.archlinuxppc.org/wsvn/filedetails.php?repname=packages&path=%2Fglibc%2Ftrunk%2Fglibc-2.14-libdl-crash.patch
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2011-12-06 05:21:20 +00:00
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Index: libc/elf/dl-close.c
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===================================================================
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--- libc.orig/elf/dl-close.c 2011-12-05 20:16:38.000000000 -0800
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+++ libc/elf/dl-close.c 2011-12-05 20:17:15.863326893 -0800
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@@ -119,17 +119,8 @@
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2011-10-12 07:03:21 +00:00
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if (map->l_direct_opencount > 0 || map->l_type != lt_loaded
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|| dl_close_state != not_pending)
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{
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- if (map->l_direct_opencount == 0)
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- {
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- if (map->l_type == lt_loaded)
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- dl_close_state = rerun;
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- else if (map->l_type == lt_library)
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- {
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- struct link_map **oldp = map->l_initfini;
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- map->l_initfini = map->l_orig_initfini;
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- _dl_scope_free (oldp);
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- }
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- }
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+ if (map->l_direct_opencount == 0 && map->l_type == lt_loaded)
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+ dl_close_state = rerun;
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/* There are still references to this object. Do nothing more. */
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2011-12-06 05:21:20 +00:00
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if (__builtin_expect (GLRO_dl_debug_mask & DL_DEBUG_FILES, 0))
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Index: libc/elf/dl-deps.c
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===================================================================
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--- libc.orig/elf/dl-deps.c 2011-12-05 20:16:38.000000000 -0800
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+++ libc/elf/dl-deps.c 2011-12-05 20:19:33.179326877 -0800
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@@ -478,6 +478,7 @@
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2011-10-12 07:03:21 +00:00
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nneeded * sizeof needed[0]);
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atomic_write_barrier ();
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l->l_initfini = l_initfini;
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+ l->l_free_initfini = 1;
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}
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/* If we have no auxiliary objects just go on to the next map. */
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2011-12-06 05:21:20 +00:00
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@@ -678,6 +679,7 @@
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2011-10-12 07:03:21 +00:00
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l_initfini[nlist] = NULL;
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atomic_write_barrier ();
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map->l_initfini = l_initfini;
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+ map->l_free_initfini = 1;
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if (l_reldeps != NULL)
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{
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atomic_write_barrier ();
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2011-12-06 05:21:20 +00:00
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@@ -686,7 +688,7 @@
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2011-10-12 07:03:21 +00:00
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_dl_scope_free (old_l_reldeps);
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}
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if (old_l_initfini != NULL)
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- map->l_orig_initfini = old_l_initfini;
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2011-12-06 05:21:20 +00:00
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+ _dl_scope_free (old_l_initfini);
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if (errno_reason)
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_dl_signal_error (errno_reason == -1 ? 0 : errno_reason, objname,
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Index: libc/elf/dl-libc.c
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===================================================================
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--- libc.orig/elf/dl-libc.c 2011-10-22 09:34:03.000000000 -0700
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+++ libc/elf/dl-libc.c 2011-12-05 20:17:15.863326893 -0800
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@@ -265,13 +265,13 @@
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2011-10-12 07:03:21 +00:00
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for (Lmid_t ns = 0; ns < GL(dl_nns); ++ns)
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{
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- /* Remove all additional names added to the objects. */
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for (l = GL(dl_ns)[ns]._ns_loaded; l != NULL; l = l->l_next)
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{
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struct libname_list *lnp = l->l_libname->next;
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l->l_libname->next = NULL;
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+ /* Remove all additional names added to the objects. */
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while (lnp != NULL)
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{
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struct libname_list *old = lnp;
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2011-12-06 05:21:20 +00:00
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@@ -279,6 +279,10 @@
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2011-10-12 07:03:21 +00:00
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if (! old->dont_free)
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free (old);
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}
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+
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+ /* Free the initfini dependency list. */
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+ if (l->l_free_initfini)
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+ free (l->l_initfini);
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}
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if (__builtin_expect (GL(dl_ns)[ns]._ns_global_scope_alloc, 0) != 0
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2011-12-06 05:21:20 +00:00
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Index: libc/elf/rtld.c
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===================================================================
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--- libc.orig/elf/rtld.c 2011-10-22 09:34:03.000000000 -0700
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+++ libc/elf/rtld.c 2011-12-05 20:17:15.863326893 -0800
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@@ -2264,6 +2264,7 @@
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2011-10-12 07:03:21 +00:00
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lnp->dont_free = 1;
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lnp = lnp->next;
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}
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+ l->l_free_initfini = 0;
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if (l != &GL(dl_rtld_map))
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_dl_relocate_object (l, l->l_scope, GLRO(dl_lazy) ? RTLD_LAZY : 0,
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2011-12-06 05:21:20 +00:00
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Index: libc/include/link.h
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===================================================================
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--- libc.orig/include/link.h 2011-10-22 09:32:35.000000000 -0700
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+++ libc/include/link.h 2011-12-05 20:17:15.863326893 -0800
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@@ -192,6 +192,9 @@
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2011-10-12 07:03:21 +00:00
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during LD_TRACE_PRELINKING=1
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contains any DT_SYMBOLIC
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libraries. */
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+ unsigned int l_free_initfini:1; /* Nonzero if l_initfini can be
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+ freed, ie. not allocated with
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+ the dummy malloc in ld.so. */
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/* Collected information about own RPATH directories. */
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struct r_search_path_struct l_rpath_dirs;
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2011-12-06 05:21:20 +00:00
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@@ -240,9 +243,6 @@
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2011-10-12 07:03:21 +00:00
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/* List of object in order of the init and fini calls. */
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struct link_map **l_initfini;
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- /* The init and fini list generated at startup, saved when the
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- object is also loaded dynamically. */
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- struct link_map **l_orig_initfini;
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/* List of the dependencies introduced through symbol binding. */
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struct link_map_reldeps
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