[OE-core] [PATCH] eglibc-2.14: add patch to fix libdl crash
Khem Raj
raj.khem at gmail.com
Mon Oct 3 19:47:24 UTC 2011
On 10/3/2011 2:30 AM, mokml at mnet-online.de wrote:
> 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.
>
can you add appropriate header for this?
secondly this reverts the license year text
from 2011 to 2010 that should not be needed.
> 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 \
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