Bug 28027

Summary:	abilint: "Unknown file type given in input" error message has no end of line character (LF)
Product:	libabigail	Reporter:	Paul Wise <pabs3>
Component:	default	Assignee:	Dodji Seketeli <dodji>
Status:	UNCONFIRMED ---
Severity:	minor	CC:	libabigail, mark, mehmetgelisin, ucelsanicin
Priority:	P3
Version:	unspecified
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:

Description Paul Wise 2021-06-30 07:41:43 UTC

I noticed while playing with abilint that the "Unknown file type given in input" error message has no end of line character (LF or \n), so if you are passing multiple files to abilint via xargs, you get all the output on one line. As far as I can tell all the other errors printed by abilint contain and end of line character (\n).

$ echo foo > foo
$ abilint --noout foo |& hd
00000000  61 62 69 6c 69 6e 74 3a  20 55 6e 6b 6e 6f 77 6e  |abilint: Unknown|
00000010  20 66 69 6c 65 20 74 79  70 65 20 67 69 76 65 6e  | file type given|
00000020  20 69 6e 20 69 6e 70 75  74 3a 20 66 6f 6f        | in input: foo|
0000002e
$ echo foo | hd
00000000  66 6f 6f 0a                                       |foo.|
00000004

$ grep -B2 -A1 'Unknown file type given in input' tools/abilint.cc
	case abigail::tools_utils::FILE_TYPE_UNKNOWN:
	  emit_prefix(argv[0], cerr)
	    << "Unknown file type given in input: " << opts.file_path;
	  return 1;

Comment 1 Ucel Sani 2021-08-19 06:01:29 UTC Comment hidden (spam)

On further thought, we shouldn't be encouraging palindromish REs in the manual,
so that naive users aren't drawn into this mess. So I installed the attached
further patch to the documentation.

Of course it would be better to fix the back-reference bugs but this is low
priority and I doubt whether anybody has the time.
[0001-doc-don-t-encourage-back-references.patch
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Comment 2 Mehmet gelisin 2021-09-10 19:36:26 UTC Comment hidden (spam)

hen printing an object of the type sca_port_base - part of the Open Source SystemC AMS Simulator - gdb versions newer than > 7.6.1 crash (Linux and MinGW64  versions). Below you find the backtrace when debugging gdb 7.11. The error occurs in value.c of gdb

We can provide also an executable to reproduce the crash, however it is quite large, due to the libraries required. Attached you find the source code of the object which is tried to be printed. GDB commands executed in the session are just: 

b my_first_sch_simple_tb.cpp:128
r
print i_conv_1.tdf_i
---
Breakpoint 1, sc_main (argc=<optimized out>, argv=<optimized out>) at hier_modules/my_first_sch_simple_tb.cpp:139
139         dut = new my_first_sch("dut", p_dut);
(gdb) print i_conv_1.tdf_i
$1 = {<sca_tdf::sca_implementation::sca_tdf_port_impl<sca_tdf::sca_signal_if<double>, double>> = {<sca_core::sca_port<sca_tdf::sca_signal_if<double> >> = {<sca_core::sca_implementation::sca_port_impl<sca_tdf::sca_signal_if<double> >> = {<sc_core::sc_port<sc                                                           a_tdf::sca_signal_if<double>, 1, (sc_core::sc_port_policy)0>> = {<sc_core::sc_port_b<sca_tdf::sca_signal_if<double> >> = {<sc_core::sc_port_base> = {<sc_core::sc_object> = {_vptr.sc_object = 0x7e5310 <vtable for sca_tdf::sca_in<double>+16>, 
                m_attr_cltn_p = 0x0, m_child_events = {<std::_Vector_base<sc_core::sc_event*, std::allocator<sc_core::sc_event*> >> = {
                    _M_impl = {<std::allocator<sc_core::sc_event*>> = {<__gnu_cxx::new_allocator<sc_core::sc_event*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, _M_end_of_storage = 0x0}}, <No data fields>}, 
                m_child_objects = {<std::_Vector_base<sc_core::sc_object*, std::allocator<sc_core::sc_object*> >> = {
                    _M_impl = {<std::allocator<sc_core::sc_object*>> = {<__gnu_cxx::new_allocator<sc_core::sc_object*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, _M_end_of_storage = 0x0}}, <No data fields>}, m_name = {
                  static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x825808 "i_conv_1.tdf_i"}}, m_parent = 0x7fffffffb3f0, m_simc = 0x7f9090}, 
              m_bind_info = 0x8258b0}, m_interface = 0x7fffffffabe0, m_interface_vec = {<std::_Vector_base<sca_tdf::sca_signal_if<double>*, std::allocator<sca_tdf::sca_signal_if<double>*> >> = {
                _M_impl = {<std::allocator<sca_tdf::sca_signal_if<double>*>> = {<__gnu_cxx::new_allocator<sca_tdf::sca_signal_if<double>*>> = {<No data fields>}, <No data fields>}, _M_start = 0x825a30, _M_finish = 0x825a38, 
                  _M_end_of_storage = 0x825a38}}, <No data fields>}}, <No data fields>}, <sca_core::sca_implementation::sca_port_base> = {<sca_util::sca_traceable_object> = {_vptr.sca_traceable_object = 0x7e5448 <vtable for sca_tdf::sca_in<double>+328>, 
            empty_string = {static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}, unit = {
              static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}, unit_prefix = {
              static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}, domain = {
              static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}}, 

hen printing an object of the type sca_port_base - part of the Open Source SystemC AMS Simulator - gdb versions newer than > 7.6.1 crash (Linux and MinGW64  versions). Below you find the backtrace when debugging gdb 7.11. The error occurs in value.c of gdb

We can provide also an executable to reproduce the crash, however it is quite large, due to the libraries required. Attached you find the source code of the object which is tried to be printed. GDB commands executed in the session are just: 

b my_first_sch_simple_tb.cpp:128
r
print i_conv_1.tdf_i https://komiya-dental.com/ 
---
Breakpoint 1, sc_main (argc=<optimized out>, argv=<optimized out>) at hier_modules/my_first_sch_simple_tb.cpp:139
139         dut = new my_first_sch("dut", p_dut);
(gdb) print i_conv_1.tdf_i
$1 = {<sca_tdf::sca_implementation::sca_tdf_port_impl<sca_tdf::sca_signal_if<double>, double>> = {<sca_core::sca_port<sca_tdf::sca_signal_if<double> >> = {<sca_core::sca_implementation::sca_port_impl<sca_tdf::sca_signal_if<double> >> = {<sc_core::sc_port<sc         http://www.iu-bloomington.com/                                                    a_tdf::sca_signal_if<double>, 1, (sc_core::sc_port_policy)0>> = {<sc_core::sc_port_b<sca_tdf::sca_signal_if<double> >> = {<sc_core::sc_port_base> = {<sc_core::sc_object> = {_vptr.sc_object = 0x7e5310 <vtable for sca_tdf::sca_in<double>+16>, 
                m_attr_cltn_p = 0x0, m_child_events = {<std::_Vector_base<sc_core::sc_event*, std::allocator<sc_core::sc_event*> >> = {
       https://www.webb-dev.co.uk/              _M_impl = {<std::allocator<sc_core::sc_event*>> = {<__gnu_cxx::new_allocator<sc_core::sc_event*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, _M_end_of_storage = 0x0}}, <No data fields>}, 
                m_child_objects = {<std::_Vector_base<sc_core::sc_object*, std::allocator<sc_core::sc_object*> >> = {
      https://waytowhatsnext.com/                _M_impl = {<std::allocator<sc_core::sc_object*>> = {<__gnu_cxx::new_allocator<sc_core::sc_object*>> = {<No data fields>}, <No data fields>}, _M_start = 0x0, _M_finish = 0x0, _M_end_of_storage = 0x0}}, <No data fields>}, m_name = {
                  static npos = <optimized out>, _M_dataplus =  http://www.acpirateradio.co.uk/ {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x825808 "i_conv_1.tdf_i"}}, m_parent = 0x7fffffffb3f0, m_simc = 0x7f9090}, 
              m_bind_info = 0x8258b0}, m_interface = 0x7fffffffabe0, m_interface_vec = {<std::_Vector_base<sca_tdf::sca_signal_if<double>*, http://www.logoarts.co.uk/ std::allocator<sca_tdf::sca_signal_if<double>*> >> = {
                _M_impl = {<std::allocator<sca_tdf::sca_signal_if<double>*>> = {<__gnu_cxx::new_allocator<sca_tdf::sca_signal_if<double>*>> = {<No data fields>}, <No data fields>}, _M_start = 0x825a30, _M_finish = 0x825a38,  http://www.slipstone.co.uk/ 
                  _M_end_of_storage = 0x825a38}}, <No data fields>}}, <No data fields>}, <sca_core::sca_implementation::sca_port_base> = {<sca_util::sca_traceable_object> http://embermanchester.uk/  = {_vptr.sca_traceable_object = 0x7e5448 <vtable for sca_tdf::sca_in<double>+328>, 
            empty_string = {static npos = <optimized out>, _M_dataplus = http://connstr.net/   {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}, unit = { http://joerg.li/
              static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8  http://www.jopspeech.com/ <std::string::_Rep::_S_empty_rep_storage+24> ""}}, unit_prefix = {
              static npos = <optimized out>, _M_dataplus =  http://www.wearelondonmade.com/ {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}, domain = { http://www.compilatori.com/
              static npos = <optimized out>, _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x7ffff7fec6b8  http://www-look-4.com/ <std::string::_Rep::_S_empty_rep_storage+24> ""}}},