eglibc-2.14: add patch to fix libdl crash

* Without this patch programs using alsa-lib crash (alsamixer for example).
* This patch is taken verbatim from ArchLinux.

(From OE-Core rev: 2d2ac8bbbbb98080ad339113c3f27f9573374be2)

Signed-off-by: Klaus Kurzmann <mok@fluxnetz.de>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 134 insertions, 2 deletions

diff --git a/meta/recipes-core/eglibc/eglibc-2.14/glibc-2.14-libdl-crash.patch b/meta/recipes-core/eglibc/eglibc-2.14/glibc-2.14-libdl-crash.patch
new file mode 100644
index 0000000000..e1f135c424
--- /dev/null
+++ b/meta/recipes-core/eglibc/eglibc-2.14/glibc-2.14-libdl-crash.patch
@@ -0,0 +1,131 @@
+Without this patch programs using alsa-lib crash (alsamixer for example).
+Removed Copyright reverts
+
+Upstream-Status: Pending
+
+http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=675155e9
+http://sourceware.org/ml/libc-alpha/2011-06/msg00006.html
+
+many distributions are using this already
+http://chakra-project.org/ccr/packages/glibc/glibc/PKGBUILD
+http://mailman.archlinux.org/pipermail/arch-commits/2011-June/137142.html
+http://svn.mandriva.com/cgi-bin/viewvc.cgi/packages/cooker/glibc/current/SOURCES/glibc-2.14-libdl-crash.patch?view=markup&pathrev=691343
+http://repos.archlinuxppc.org/wsvn/filedetails.php?repname=packages&path=%2Fglibc%2Ftrunk%2Fglibc-2.14-libdl-crash.patch
+
+diff --git a/elf/dl-close.c b/elf/dl-close.c
+index 73b2a2f..9bd91e3 100644
+--- a/elf/dl-close.c
++++ b/elf/dl-close.c
+@@ -119,17 +119,8 @@ _dl_close_worker (struct link_map *map)
+   if (map->l_direct_opencount > 0 || map->l_type != lt_loaded
+       || dl_close_state != not_pending)
+     {
+-      if (map->l_direct_opencount == 0)
+-       {
+-         if (map->l_type == lt_loaded)
+-           dl_close_state = rerun;
+-         else if (map->l_type == lt_library)
+-           {
+-             struct link_map **oldp = map->l_initfini;
+-             map->l_initfini = map->l_orig_initfini;
+-             _dl_scope_free (oldp);
+-           }
+-       }
++      if (map->l_direct_opencount == 0 && map->l_type == lt_loaded)
++       dl_close_state = rerun;
+ 
+       /* There are still references to this object.  Do nothing more.  */
+       if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0))
+diff --git a/elf/dl-deps.c b/elf/dl-deps.c
+index 9e30594..3890d00 100644
+--- a/elf/dl-deps.c
++++ b/elf/dl-deps.c
+@@ -478,6 +478,7 @@ _dl_map_object_deps (struct link_map *map,
+                  nneeded * sizeof needed[0]);
+          atomic_write_barrier ();
+          l->l_initfini = l_initfini;
++         l->l_free_initfini = 1;
+        }
+ 
+       /* If we have no auxiliary objects just go on to the next map.  */
+@@ -681,6 +682,7 @@ Filters not supported with LD_TRACE_PRELINKING"));
+   l_initfini[nlist] = NULL;
+   atomic_write_barrier ();
+   map->l_initfini = l_initfini;
++  map->l_free_initfini = 1;
+   if (l_reldeps != NULL)
+     {
+       atomic_write_barrier ();
+@@ -689,5 +691,5 @@ Filters not supported with LD_TRACE_PRELINKING"));
+       _dl_scope_free (old_l_reldeps);
+     }
+   if (old_l_initfini != NULL)
+-      map->l_orig_initfini = old_l_initfini;
++    _dl_scope_free (old_l_initfini);
+ }
+diff --git a/elf/dl-libc.c b/elf/dl-libc.c
+index 7be9483..a13fce3 100644
+--- a/elf/dl-libc.c
++++ b/elf/dl-libc.c
+@@ -265,13 +265,13 @@ libc_freeres_fn (free_mem)
+ 
+   for (Lmid_t ns = 0; ns < GL(dl_nns); ++ns)
+     {
+-      /* Remove all additional names added to the objects.  */
+       for (l = GL(dl_ns)[ns]._ns_loaded; l != NULL; l = l->l_next)
+        {
+          struct libname_list *lnp = l->l_libname->next;
+ 
+          l->l_libname->next = NULL;
+ 
++         /* Remove all additional names added to the objects.  */
+          while (lnp != NULL)
+            {
+              struct libname_list *old = lnp;
+@@ -279,6 +279,10 @@ libc_freeres_fn (free_mem)
+              if (! old->dont_free)
+                free (old);
+            }
++
++         /* Free the initfini dependency list.  */
++         if (l->l_free_initfini)
++           free (l->l_initfini);
+        }
+ 
+       if (__builtin_expect (GL(dl_ns)[ns]._ns_global_scope_alloc, 0) != 0
+diff --git a/elf/rtld.c b/elf/rtld.c
+index 4a9109e..617e30e 100644
+--- a/elf/rtld.c
++++ b/elf/rtld.c
+@@ -2251,6 +2251,7 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
+              lnp->dont_free = 1;
+              lnp = lnp->next;
+            }
++         l->l_free_initfini = 0;
+ 
+          if (l != &GL(dl_rtld_map))
+            _dl_relocate_object (l, l->l_scope, GLRO(dl_lazy) ? RTLD_LAZY : 0,
+diff --git a/include/link.h b/include/link.h
+index e877104..051b99a 100644
+--- a/include/link.h
++++ b/include/link.h
+@@ -192,6 +192,9 @@ struct link_map
+                                                 during LD_TRACE_PRELINKING=1
+                                                 contains any DT_SYMBOLIC
+                                                 libraries.  */
++    unsigned int l_free_initfini:1; /* Nonzero if l_initfini can be
++                                      freed, ie. not allocated with
++                                      the dummy malloc in ld.so.  */
+ 
+     /* Collected information about own RPATH directories.  */
+     struct r_search_path_struct l_rpath_dirs;
+@@ -240,9 +243,6 @@ struct link_map
+ 
+     /* List of object in order of the init and fini calls.  */
+     struct link_map **l_initfini;
+-    /* The init and fini list generated at startup, saved when the
+-       object is also loaded dynamically.  */
+-    struct link_map **l_orig_initfini;
+ 
+     /* List of the dependencies introduced through symbol binding.  */
+     struct link_map_reldeps
diff --git a/meta/recipes-core/eglibc/eglibc_2.14.bb b/meta/recipes-core/eglibc/eglibc_2.14.bb
index b2821db283..571d39d26e 100644
--- a/meta/recipes-core/eglibc/eglibc_2.14.bb
+++ b/meta/recipes-core/eglibc/eglibc_2.14.bb
@@ -3,7 +3,7 @@ require eglibc.inc
 SRCREV = "15225"
 
 DEPENDS += "gperf-native"
-PR = "r0"
+PR = "r1"
 PR_append = "+svnr${SRCPV}"
 
 EGLIBC_BRANCH="eglibc-2_14"
@@ -19,7 +19,8 @@ SRC_URI = "svn://www.eglibc.org/svn/branches/;module=${EGLIBC_BRANCH};proto=http
            file://ppc-sqrt.patch \
            file://multilib_readlib.patch \
            file://eglibc-rpc-export-again.patch \
-           "
+           file://glibc-2.14-libdl-crash.patch \
+          "
 LIC_FILES_CHKSUM = "file://LICENSES;md5=98a1128c4b58120182cbea3b1752d8b9 \
       file://COPYING;md5=393a5ca445f6965873eca0259a17f833 \
       file://posix/rxspencer/COPYRIGHT;md5=dc5485bb394a13b2332ec1c785f5d83a \