libc { GLIBC_2.0 { # global variables _dl_debug_impcalls; _dl_debug_fd; # functions used in other libraries _dl_open; _dl_close; _dl_addr; _dl_sysdep_output; _dl_debug_message; # Those are in the dynamic linker, but used by libc.so. __libc_enable_secure; _dl_catch_error; _dl_check_all_versions; _dl_debug_initialize; _dl_debug_state; _dl_default_scope; _dl_global_scope_end; _dl_init_next; _dl_lookup_symbol; _dl_map_object; _dl_map_object_deps; _dl_object_relocation_scope; _dl_relocate_object; _dl_signal_error; _dl_starting_up; _dl_sysdep_start; _r_debug; _dl_global_scope; _dl_lookup_symbol_skip; _dl_lookup_versioned_symbol; _dl_lookup_versioned_symbol_skip; } GLIBC_2.1 { # global variables _dl_profile; _dl_profile_map; _dl_profile_output; _dl_start_profile; # functions used in other libraries _dl_mcount; _dl_mcount_wrapper; _dl_mcount_wrapper_check; } } libdl { GLIBC_2.0 { dladdr; dlclose; dlerror; dlopen; dlsym; } GLIBC_2.1 { dlvsym; } }