Index: elf/rtld.c =================================================================== --- elf/rtld.c.orig +++ elf/rtld.c @@ -1761,6 +1761,53 @@ ERROR: ld.so: object '%s' cannot be load } } +#if defined(__i386__) + /* + * Modifications by Red Hat Software + * + * Deal with the broken binaries from the non-versioned ages of glibc. + * If a binary does not have version information enabled, we assume that + * it is a glibc 2.0 binary and we load a compatibility library to try to + * overcome binary incompatibilities. + * Blame: gafton@redhat.com + */ +#define LIB_NOVERSION "/lib/obsolete/noversion/libNoVersion.so.1" + + if (__builtin_expect (main_map->l_info[DT_NUM + DT_THISPROCNUM + + DT_VERSIONTAGIDX (DT_VERNEED)] + == NULL, 0) + && (main_map->l_info[DT_DEBUG] + || !(GLRO(dl_debug_mask) & DL_DEBUG_PRELINK))) + { + struct stat test_st; + int test_fd; + int can_load; + + HP_TIMING_NOW (start); + + can_load = 1; + test_fd = __open (LIB_NOVERSION, O_RDONLY); + if (test_fd < 0) { + can_load = 0; + } else { + if (__fxstat (_STAT_VER, test_fd, &test_st) < 0 || test_st.st_size == 0) { + can_load = 0; + } + } + + if (test_fd >= 0) /* open did no fail.. */ + __close(test_fd); /* avoid fd leaks */ + + if (can_load != 0) + npreloads += do_preload (LIB_NOVERSION, main_map, + "nonversioned binary"); + + HP_TIMING_NOW (stop); + HP_TIMING_DIFF (diff, start, stop); + HP_TIMING_ACCUM_NT (load_time, diff); + } +#endif + if (__builtin_expect (*first_preload != NULL, 0)) { /* Set up PRELOADS with a vector of the preloaded libraries. */