[OE-core] [PATCH] eglibc-2.14: add patch to fix libdl crash
mokml at mnet-online.de
mokml at mnet-online.de
Mon Oct 3 09:30:09 UTC 2011
From: Klaus Kurzmann <mok at fluxnetz.de>
* Without this patch programs using alsa-lib crash (alsamixer for example).
* This patch is taken verbatim from ArchLinux.
Signed-off-by: Klaus Kurzmann <mok at fluxnetz.de>
---
.../eglibc-2.14/glibc-2.14-libdl-crash.patch | 132 ++++++++++++++++++++
meta/recipes-core/eglibc/eglibc_2.14.bb | 3 +-
2 files changed, 134 insertions(+), 1 deletions(-)
create mode 100644 meta/recipes-core/eglibc/eglibc-2.14/glibc-2.14-libdl-crash.patch
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 0000000..ee29f8c
--- /dev/null
+++ b/meta/recipes-core/eglibc/eglibc-2.14/glibc-2.14-libdl-crash.patch
@@ -0,0 +1,132 @@
+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
+@@ -1,5 +1,5 @@
+ /* Close a shared object opened by `_dl_open'.
+- Copyright (C) 1996-2007, 2009, 2010, 2011 Free Software Foundation, Inc.
++ Copyright (C) 1996-2007, 2009, 2010 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+@@ -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
+@@ -1,6 +1,6 @@
+ /* Data structure for communication from the run-time dynamic linker for
+ loaded ELF shared objects.
+- Copyright (C) 1995-2006, 2007, 2009, 2010, 2011 Free Software Foundation, Inc.
++ Copyright (C) 1995-2006, 2007, 2009, 2010 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+@@ -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 b2821db..4129947 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${SRCPV}"
EGLIBC_BRANCH="eglibc-2_14"
@@ -19,6 +19,7 @@ SRC_URI = "svn://www.eglibc.org/svn/branches/;module=${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 \
--
1.7.6.4
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