diff options
Diffstat (limited to 'meta/recipes-core/glibc/glibc/ld-search-order.patch')
-rw-r--r-- | meta/recipes-core/glibc/glibc/ld-search-order.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/meta/recipes-core/glibc/glibc/ld-search-order.patch b/meta/recipes-core/glibc/glibc/ld-search-order.patch new file mode 100644 index 0000000000..f518bc7642 --- /dev/null +++ b/meta/recipes-core/glibc/glibc/ld-search-order.patch @@ -0,0 +1,56 @@ +Upstream-Status: Inappropriate [embedded specific] + +The default lib search path order is: + + 1) LD_LIBRARY_PATH + 2) RPATH from the binary + 3) ld.so.cache + 4) default search paths embedded in the linker + +For nativesdk binaries which are being used alongside binaries on a host system, we +need the search paths to firstly search the shipped nativesdk libs but then also +cover the host system. For example we want the host system's libGL and this may be +in a non-standard location like /usr/lib/mesa. The only place the location is know +about is in the ld.so.cache of the host system. + +Since nativesdk has a simple structure and doesn't need to use a cache itself, we +repurpose the cache for use as a last resort in finding host system binaries. This +means we need to switch the order of 3 and 4 above to make this work effectively. + +RP 14/10/2010 + +Index: git/elf/dl-load.c +=================================================================== +--- git.orig/elf/dl-load.c 2014-08-28 17:32:46.292070587 -0700 ++++ git/elf/dl-load.c 2014-08-28 17:33:56.048070587 -0700 +@@ -2050,7 +2050,14 @@ + fd = open_path (name, namelen, mode, + &loader->l_runpath_dirs, &realname, &fb, loader, + LA_SER_RUNPATH, &found_other_class); +- ++ /* try the default path. */ ++ if (fd == -1 ++ && ((l = loader ?: GL(dl_ns)[nsid]._ns_loaded) == NULL ++ || __builtin_expect (!(l->l_flags_1 & DF_1_NODEFLIB), 1)) ++ && rtld_search_dirs.dirs != (void *) -1) ++ fd = open_path (name, namelen, mode & __RTLD_SECURE, &rtld_search_dirs, ++ &realname, &fb, l, LA_SER_DEFAULT, &found_other_class); ++ /* Finally try ld.so.cache */ + #ifdef USE_LDCONFIG + if (fd == -1 + && (__glibc_likely ((mode & __RTLD_SECURE) == 0) +@@ -2113,14 +2120,6 @@ + } + #endif + +- /* Finally, try the default path. */ +- if (fd == -1 +- && ((l = loader ?: GL(dl_ns)[nsid]._ns_loaded) == NULL +- || __glibc_likely (!(l->l_flags_1 & DF_1_NODEFLIB))) +- && rtld_search_dirs.dirs != (void *) -1) +- fd = open_path (name, namelen, mode, &rtld_search_dirs, +- &realname, &fb, l, LA_SER_DEFAULT, &found_other_class); +- + /* Add another newline when we are tracing the library loading. */ + if (__glibc_unlikely (GLRO_dl_debug_mask & DL_DEBUG_LIBS)) + _dl_debug_printf ("\n"); |