Kris Kennaway wrote: > On Wed, Sep 29, 2004 at 10:27:21AM -0700, Kris Kennaway wrote: > > >>>** If the script is blameless, then there's a change in the way the >>>** linker builds shared libraries (the point I was trying to establish). >> >>OK, I think my script is confused because objdump thinks the symbols >>moved from .data to .bss. I'll take a closer look (and switch it over >>to use readelf instead). > > > (As peter keeps telling me) readelf does a much better job, and also > finds some things that objdump missed. > > Summary: ncurses is probably OK since the only removed symbols are the > _nc_* private interface. Thanks for the sanity check. > > The libraries > > libhistory > libopie > libpcap From the list below, I wonder if all of the yy* symbols are from yacc. Would these actually be considered to be part of the public interface? The only two symbols that aren't in the yy* form look to definitely be for internal use only. Can we fix __xuname instead? > libreadline The readline(3) manpage seems to imply that this library only has one public symbol. Is this true? > > must be bumped as previously discussed. I'm not sure about libm since > the remaining problems seem to have been fixed already. The others > would be problems and should be bumped if anything can be shown to use > the symbols listed, but at least nothing in the 4.x package > collections uses them so we can probably get away without it. > > The new full list of differences is: > > ==> Comparing symbols in libalias.so.4 > 2) packetAliasMode removed with no replacement > 2) skinnyPort removed with no replacement > ==> Comparing symbols in libcam.so.2 > 2) scsi_interpret_sense removed with no replacement > 2) scsi_sense_key_text removed with no replacement > ==> Comparing symbols in libcrypt.so.2 > 2) Blowfish_decipher removed with no replacement > 2) Blowfish_encipher removed with no replacement > 2) bcrypt_gensalt removed with no replacement > 2) blf_cbc_decrypt removed with no replacement > 2) blf_cbc_encrypt removed with no replacement > 2) blf_dec removed with no replacement > 2) blf_ecb_decrypt removed with no replacement > 2) blf_ecb_encrypt removed with no replacement > 2) blf_key removed with no replacement > ==> Comparing symbols in libg2c.so.1 > 2) __G77_LIBF77_VERSION__ removed with no replacement > 2) __G77_LIBI77_VERSION__ removed with no replacement > 2) __G77_LIBU77_VERSION__ removed with no replacement > 2) g77__ivers__ removed with no replacement > 2) g77__uvers__ removed with no replacement > ==> Comparing symbols in libhistory.so.4 > 1) mbrlen reference added to new version of common libraries but is unresolved within common libraries > 1) mbrtowc reference added to new version of common libraries but is unresolved within common libraries > 2) get_env_value removed with no replacement > 2) get_home_dir removed with no replacement > 2) set_lines_and_columns removed with no replacement > 2) single_quote removed with no replacement > 2) unset_nodelay_mode removed with no replacement > ==> Comparing symbols in libisc.so.1 > 1) pselect reference added to new version of common libraries but is unresolved within common libraries > ==> Comparing symbols in libm.so.2 > 2) __arch___ieee754_acos removed with no replacement > 2) __arch___ieee754_asin removed with no replacement > 2) __arch___ieee754_atan2 removed with no replacement > 2) __arch___ieee754_exp removed with no replacement > 2) __arch___ieee754_fmod removed with no replacement > 2) __arch___ieee754_log removed with no replacement > 2) __arch___ieee754_log10 removed with no replacement > 2) __arch___ieee754_remainde removed with no replacement > 2) __arch___ieee754_scalb removed with no replacement > 2) __arch___ieee754_sqrt removed with no replacement > 2) __arch_atan removed with no replacement > 2) __arch_ceil removed with no replacement > 2) __arch_copysign removed with no replacement > 2) __arch_cos removed with no replacement > 2) __arch_finite removed with no replacement > 2) __arch_floor removed with no replacement > 2) __arch_ilogb removed with no replacement > 2) __arch_logb removed with no replacement > 2) __arch_rint removed with no replacement > 2) __arch_scalbn removed with no replacement > 2) __arch_significand removed with no replacement > 2) __arch_sin removed with no replacement > 2) __arch_tan removed with no replacement > 2) __generic___ieee754_acos removed with no replacement > 2) __generic___ieee754_asin removed with no replacement > 2) __generic___ieee754_atan2 removed with no replacement > 2) __generic___ieee754_exp removed with no replacement > 2) __generic___ieee754_fmod removed with no replacement > 2) __generic___ieee754_log removed with no replacement > 2) __generic___ieee754_log10 removed with no replacement > 2) __generic___ieee754_remai removed with no replacement > 2) __generic___ieee754_scalb removed with no replacement > 2) __generic___ieee754_sqrt removed with no replacement > 2) __generic_atan removed with no replacement > 2) __generic_ceil removed with no replacement > 2) __generic_copysign removed with no replacement > 2) __generic_cos removed with no replacement > 2) __generic_finite removed with no replacement > 2) __generic_floor removed with no replacement > 2) __generic_ilogb removed with no replacement > 2) __generic_logb removed with no replacement > 2) __generic_rint removed with no replacement > 2) __generic_scalbn removed with no replacement > 2) __generic_significand removed with no replacement > 2) __generic_sin removed with no replacement > 2) __generic_tan removed with no replacement > 2) __get_hw_float removed with no replacement > 2) __i387___ieee754_acos removed with no replacement > 2) __i387___ieee754_asin removed with no replacement > 2) __i387___ieee754_atan2 removed with no replacement > 2) __i387___ieee754_exp removed with no replacement > 2) __i387___ieee754_fmod removed with no replacement > 2) __i387___ieee754_log removed with no replacement > 2) __i387___ieee754_log10 removed with no replacement > 2) __i387___ieee754_remainde removed with no replacement > 2) __i387___ieee754_scalb removed with no replacement > 2) __i387___ieee754_sqrt removed with no replacement > 2) __i387_atan removed with no replacement > 2) __i387_ceil removed with no replacement > 2) __i387_copysign removed with no replacement > 2) __i387_cos removed with no replacement > 2) __i387_finite removed with no replacement > 2) __i387_floor removed with no replacement > 2) __i387_ilogb removed with no replacement > 2) __i387_logb removed with no replacement > 2) __i387_rint removed with no replacement > 2) __i387_scalbn removed with no replacement > 2) __i387_significand removed with no replacement > 2) __i387_sin removed with no replacement > 2) __i387_tan removed with no replacement > ==> Comparing symbols in libncp.so.1 > 1) _getprogname reference added to new version of common libraries but is unresolved within common libraries > 2) sysentoffset removed with no replacement > ==> Comparing symbols in libncurses.so.5 > 2) _nc_background removed with no replacement > 2) _nc_lib_traceatr removed with no replacement > 2) _nc_lib_tracechr removed with no replacement > 2) _nc_lib_tracedmp removed with no replacement > 2) _nc_lib_tracemouse removed with no replacement > 2) _nc_trace_buf removed with no replacement > 2) _nc_trace_tries removed with no replacement > 2) _nc_trace_xnames removed with no replacement > 2) _nc_tracebits removed with no replacement > ==> Comparing symbols in libopie.so.2 > 1) __xuname reference added to new version of common libraries but is unresolved within common libraries > 2) opielogin removed with no replacement > 2) opielogwtmp removed with no replacement > ==> Comparing symbols in libpcap.so.2 > 1) __xuname reference added to new version of common libraries but is unresolved within common libraries > 2) pcap_lval removed with no replacement > 2) yy_create_buffer removed with no replacement > 2) yy_delete_buffer removed with no replacement > 2) yy_flush_buffer removed with no replacement > 2) yy_init_buffer removed with no replacement > 2) yy_load_buffer_state removed with no replacement > 2) yy_scan_buffer removed with no replacement > 2) yy_scan_bytes removed with no replacement > 2) yy_scan_string removed with no replacement > 2) yy_switch_to_buffer removed with no replacement > 2) yychar removed with no replacement > 2) yycheck removed with no replacement > 2) yydebug removed with no replacement > 2) yydefred removed with no replacement > 2) yydgoto removed with no replacement > 2) yyerrflag removed with no replacement > 2) yygindex removed with no replacement > 2) yyin removed with no replacement > 2) yylen removed with no replacement > 2) yyleng removed with no replacement > 2) yylex removed with no replacement > 2) yylhs removed with no replacement > 2) yynerrs removed with no replacement > 2) yyout removed with no replacement > 2) yyparse removed with no replacement > 2) yyrestart removed with no replacement > 2) yyrindex removed with no replacement > 2) yysindex removed with no replacement > 2) yyss removed with no replacement > 2) yysslim removed with no replacement > 2) yyssp removed with no replacement > 2) yystacksize removed with no replacement > 2) yytable removed with no replacement > 2) yytext removed with no replacement > 2) yyval removed with no replacement > 2) yyvs removed with no replacement > 2) yyvsp removed with no replacement > 2) yywrap removed with no replacement > ==> Comparing symbols in libreadline.so.4 > 1) mbrlen reference added to new version of common libraries but is unresolved within common libraries > 1) mbrtowc reference added to new version of common libraries but is unresolved within common libraries > 2) _rl_defining_kbd_macro removed with no replacement > 2) _rl_executing_macro removed with no replacement > 2) get_env_value removed with no replacement > 2) get_home_dir removed with no replacement > 2) possible_control_prefixes removed with no replacement > 2) possible_meta_prefixes removed with no replacement > 2) saved_line_for_history removed with no replacement > 2) screenchars removed with no replacement > 2) screenheight removed with no replacement > 2) screenwidth removed with no replacement > 2) set_lines_and_columns removed with no replacement > 2) single_quote removed with no replacement > 2) term_DC removed with no replacement > 2) term_IC removed with no replacement > 2) term_backspace removed with no replacement > 2) term_clreol removed with no replacement > 2) term_clrpag removed with no replacement > 2) term_cr removed with no replacement > 2) term_dc removed with no replacement > 2) term_ei removed with no replacement > 2) term_goto removed with no replacement > 2) term_ic removed with no replacement > 2) term_im removed with no replacement > 2) term_ip removed with no replacement > 2) term_pc removed with no replacement > 2) term_up removed with no replacement > 2) terminal_can_insert removed with no replacement > 2) unset_nodelay_mode removed with no replacement > ==> Comparing symbols in libssh.so.2 > 1) ___res reference added to new version of common libraries but is unresolved within common libraries > 1) __h_error reference added to new version of common libraries but is unresolved within common libraries > 2) auth_input_open_request removed with no replacement > 2) debug removed with no replacement > 2) debug2 removed with no replacement > 2) debug3 removed with no replacement > 2) error removed with no replacement > 2) fatal removed with no replacement > 2) fatal_add_cleanup removed with no replacement > 2) fatal_cleanup removed with no replacement > 2) fatal_remove_all_cleanups removed with no replacement > 2) fatal_remove_cleanup removed with no replacement > 2) get_progname removed with no replacement > 2) kexdh removed with no replacement > 2) kexgex removed with no replacement > 4) log removed with no replacement which is not a common library > 2) mm_auth2_read_banner removed with no replacement > 2) mm_auth_password removed with no replacement > 2) mm_auth_rhosts_rsa_key_al removed with no replacement > 2) mm_auth_rsa_generate_chal removed with no replacement > 2) mm_auth_rsa_key_allowed removed with no replacement > 2) mm_auth_rsa_verify_respon removed with no replacement > 2) mm_bsdauth_query removed with no replacement > 2) mm_bsdauth_respond removed with no replacement > 2) mm_choose_dh removed with no replacement > 2) mm_getpwnamallow removed with no replacement > 2) mm_hostbased_key_allowed removed with no replacement > 2) mm_inform_authserv removed with no replacement > 2) mm_key_allowed removed with no replacement > 2) mm_key_sign removed with no replacement > 2) mm_key_verify removed with no replacement > 2) mm_newkeys_from_blob removed with no replacement > 2) mm_newkeys_to_blob removed with no replacement > 2) mm_pam_free_ctx removed with no replacement > 2) mm_pam_init_ctx removed with no replacement > 2) mm_pam_query removed with no replacement > 2) mm_pam_respond removed with no replacement > 2) mm_pty_allocate removed with no replacement > 2) mm_receive_fd removed with no replacement > 2) mm_request_receive removed with no replacement > 2) mm_request_receive_expect removed with no replacement > 2) mm_request_send removed with no replacement > 2) mm_send_fd removed with no replacement > 2) mm_send_keystate removed with no replacement > 2) mm_session_pty_cleanup2 removed with no replacement > 2) mm_ssh1_session_id removed with no replacement > 2) mm_ssh1_session_key removed with no replacement > 2) mm_start_pam removed with no replacement > 2) mm_terminate removed with no replacement > 2) mm_user_key_allowed removed with no replacement > 2) packet_get_seqnr removed with no replacement > 2) packet_set_seqnr removed with no replacement > 2) pmonitor removed with no replacement > 2) use_privsep removed with no replacement > 2) verbose removed with no replacement > ==> Comparing symbols in libz.so.2 > 2) inflate_blocks removed with no replacement > 2) inflate_blocks_free removed with no replacement > 2) inflate_blocks_new removed with no replacement > 2) inflate_blocks_reset removed with no replacement > 2) inflate_blocks_sync_point removed with no replacement > 2) inflate_codes removed with no replacement > 2) inflate_codes_free removed with no replacement > 2) inflate_codes_new removed with no replacement > 2) inflate_flush removed with no replacement > 2) inflate_mask removed with no replacement > 2) inflate_set_dictionary removed with no replacement > 2) inflate_trees_bits removed with no replacement > 2) inflate_trees_dynamic removed with no replacement > 2) inflate_trees_fixed removed with no replacement > > Explanation of errors: > 1) will cause runtime failures with LD_BIND_NOW > 2), 3) will cause runtime failures if an old binary references the symbol and is run with the new libraries > 4) will cause runtime failures if an old binary references the symbol and is not linked against <newlib> > /tmp/checkcompat.WS4PkkLG > > > >>>The only other one that is noticeable is the private _nc_tracebits >>>symbol (not the topic of this discussion, since applications that use >>>private symbols aren't supported by anyone that I recall). >>> >>> >>>>A 4.x binary that calls _nc_tracebits() will fail outright when run on >>>>5.x, but this is a debugging function and not likely to be widely used >>>>in the real world, so that isn't a big deal. >>> >>>_nc_tracebits is a variable, not a function. You can't "call" it. >> >>The linker, curs_trace(3) and <curses.h> beg to differ: >> >>extern char *_nc_tracebits(void); >> >> >>>Also - checking the changelog - _nc_tracebits was not in ncurses 4.2 >>>(it was introduced in late 1998). >> >>We're not talking about ncurses 4.2, as I tried to clarify in my >>previous email. >> >>Kris > > >Received on Wed Sep 29 2004 - 16:31:27 UTC
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