1: libc {
    2:   GLIBC_2.0 {
    3: %ifdef EXPORT_UNWIND_FIND_FDE
    4:     __register_frame_info; __deregister_frame_info;
    5: %endif
    6:   }
    7:   GLIBC_2.1 {
    8:     # functions used in other libraries
    9:     _dl_mcount_wrapper; _dl_mcount_wrapper_check;
   10:   }
   11:   GLIBC_2.2.4 {
   12:     dl_iterate_phdr;
   13:   }
   14: %ifdef EXPORT_UNWIND_FIND_FDE
   15:   GCC_3.0 {
   16:     __register_frame_info_bases; __deregister_frame_info_bases;
   17:     __register_frame_info_table_bases; _Unwind_Find_FDE;
   18:   }
   19: %endif
   20:   GLIBC_PRIVATE {
   21:     # functions used in other libraries
   22:     _dl_addr;
   23:     _dl_sym; _dl_vsym;
   24:     _dl_open_hook;
   25:     __libc_dlopen_mode; __libc_dlsym; __libc_dlclose;
   26:   }
   27: }
   28: 
   29: ld {
   30:   GLIBC_2.0 {
   31:     # Function from libc.so which must be shared with libc.
   32:     calloc; free; malloc; realloc; __libc_memalign;
   33: 
   34:     _r_debug;
   35:   }
   36:   GLIBC_2.1 {
   37:     # functions used in other libraries
   38:     _dl_mcount;
   39:     # historically used by Garbage Collectors
   40:     __libc_stack_end;
   41:   }
   42:   GLIBC_2.3 {
   43:     # runtime interface to TLS
   44:     __tls_get_addr;
   45:   }
   46:   GLIBC_2.4 {
   47:     # stack canary
   48:     __stack_chk_guard;
   49:   }
   50:   GLIBC_PRIVATE {
   51:     # Those are in the dynamic linker, but used by libc.so.
   52:     __libc_enable_secure;
   53:     _dl_argv;
   54:     _dl_out_of_memory;
   55:     _dl_starting_up;
   56:     _rtld_global; _rtld_global_ro;
   57:     _dl_allocate_tls; _dl_deallocate_tls;
   58:     _dl_get_tls_static_info; _dl_allocate_tls_init;
   59:     _dl_tls_setup; _dl_rtld_di_serinfo;
   60:     _dl_tls_get_addr_soft;
   61:     _dl_make_stack_executable;
   62:     # Only here for gdb while a better method is developed.
   63:     _dl_debug_state;
   64:     # Pointer protection.
   65:     __pointer_chk_guard;
   66:   }
   67: }