diff options
Diffstat (limited to 'poky/meta/recipes-core/glibc/glibc/0025-elf-dl-deps.c-Make-_dl_build_local_scope-breadth-fir.patch')
-rw-r--r-- | poky/meta/recipes-core/glibc/glibc/0025-elf-dl-deps.c-Make-_dl_build_local_scope-breadth-fir.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/poky/meta/recipes-core/glibc/glibc/0025-elf-dl-deps.c-Make-_dl_build_local_scope-breadth-fir.patch b/poky/meta/recipes-core/glibc/glibc/0025-elf-dl-deps.c-Make-_dl_build_local_scope-breadth-fir.patch new file mode 100644 index 000000000..fb0a609db --- /dev/null +++ b/poky/meta/recipes-core/glibc/glibc/0025-elf-dl-deps.c-Make-_dl_build_local_scope-breadth-fir.patch @@ -0,0 +1,53 @@ +From 50b605dece16606dd9d1c737e579c13725eab11d Mon Sep 17 00:00:00 2001 +From: Mark Hatle <mark.hatle@windriver.com> +Date: Thu, 18 Aug 2016 14:07:58 -0500 +Subject: [PATCH] elf/dl-deps.c: Make _dl_build_local_scope breadth first + +According to the ELF specification: + +When resolving symbolic references, the dynamic linker examines the symbol +tables with a breadth-first search. + +This function was using a depth first search. By doing so the conflict +resolution reported to the prelinker (when LD_TRACE_PRELINKING=1 is set) +was incorrect. This caused problems when their were various circular +dependencies between libraries. The problem usually manifested itself by +the wrong IFUNC being executed. + +[BZ# 20488] + +Upstream-Status: Submitted [libc-alpha] + +Signed-off-by: Mark Hatle <mark.hatle@windriver.com> +--- + elf/dl-deps.c | 14 ++++++++++---- + 1 file changed, 10 insertions(+), 4 deletions(-) + +diff --git a/elf/dl-deps.c b/elf/dl-deps.c +index 087a49b212..c09f9334f2 100644 +--- a/elf/dl-deps.c ++++ b/elf/dl-deps.c +@@ -73,13 +73,19 @@ _dl_build_local_scope (struct link_map **list, struct link_map *map) + { + struct link_map **p = list; + struct link_map **q; ++ struct link_map **r; + + *p++ = map; + map->l_reserved = 1; +- if (map->l_initfini) +- for (q = map->l_initfini + 1; *q; ++q) +- if (! (*q)->l_reserved) +- p += _dl_build_local_scope (p, *q); ++ ++ for (r = list; r < p; ++r) ++ if ((*r)->l_initfini) ++ for (q = (*r)->l_initfini + 1; *q; ++q) ++ if (! (*q)->l_reserved) ++ { ++ *p++ = *q; ++ (*q)->l_reserved = 1; ++ } + return p - list; + } + |