scripts/t/Dpkg_Shlibs_Cppfilt.t

   1 #!/usr/bin/perl
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 2 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  15
  16 use strict;
  17 use warnings;
  18
  19 use Test::More;
  20 use Test::Dpkg qw(:needs);
  21
  22 use Config;
  23
  24 test_needs_command('c++filt');
  25
  26 if (defined $Config{bin_ELF} && $Config{bin_ELF} eq 'define') {
  27     plan tests => 154;
  28 } else {
  29     plan skip_all => 'only ELF is currently supported';
  30 }
  31
  32 use_ok('Dpkg::Shlibs::Cppfilt');
  33
  34 # Simple C++ demangling tests
  35 is(cppfilt_demangle_cpp('_ZNSt10istrstreamC1EPKcl'),
  36     'std::istrstream::istrstream(char const*, long)',
  37     'demangle symbol');
  38 is(cppfilt_demangle_cpp('_ZNSt10istrstreamC1EPKcl@Base'),
  39     'std::istrstream::istrstream(char const*, long)@Base',
  40     'demangle symbol with extra postfix');
  41 is(cppfilt_demangle_cpp('foobar _ZNSt10istrstreamC1EPKcl@Base'),
  42     'foobar std::istrstream::istrstream(char const*, long)@Base',
  43     'demangle symbol with garbage around it');
  44 is(cppfilt_demangle_cpp('_ZN13AngleBracketsrSEi'),
  45     'AngleBrackets::operator>>=(int)',
  46     'demangle symbol exempt from normalized angle brackets');
  47 is(cppfilt_demangle_cpp('_ZN13AngleBracketsrSIfEEvT_'),
  48     'void AngleBrackets::operator>>=<float>(float)',
  49     'demangle template symbol exempt from normalized angle brackets');
  50 is(cppfilt_demangle_cpp('FoobarInvalidSymbol'), undef,
  51     'non-demanglable string');
  52
  53 # Mass C++ demangling. Checking if c++filt does not hang and cppfilt_demangle()
  54 # immediately provides a correct answer to the caller (i.e. no buffering).
  55 my @mangledtext = split(/\n+/s, <<'END');
  56 0000000000000000      DF *UND*  0000000000000000  GCC_3.0     _Unwind_SetIP
  57 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 __towlower_l
  58 0000000000000000      DO *UND*  0000000000000000  GLIBC_2.2.5 stdout
  59 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 wmemset
  60 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 fflush
  61 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 getc
  62 0000000000000000  w   D  *UND*  0000000000000000              pthread_join
  63 00000000000cfc22 g    DO .rodata        0000000000000001  GLIBCXX_3.4 _ZNSt14numeric_limitsIyE17has_signaling_NaNE
  64 0000000000088d80  w   DF .text  0000000000000064  GLIBCXX_3.4 _ZNSt11__timepunctIcEC2Em
  65 00000000002f40a0  w   DO .data.rel.ro   0000000000000020  GLIBCXX_3.4 _ZTTSt14basic_ifstreamIwSt11char_traitsIwEE
  66 000000000005a5f0 g    DF .text  0000000000000063  GLIBCXX_3.4.11 _ZNVSt9__atomic011atomic_flag5clearESt12memory_order
  67 00000000000bdc20  w   DF .text  0000000000000024  GLIBCXX_3.4 _ZNSbIwSt11char_traitsIwESaIwEEC1EPKwmRKS1_
  68 0000000000063850 g    DF .text  0000000000000062  GLIBCXX_3.4 _ZNSt5ctypeIwED2Ev
  69 00000000000898b0  w   DF .text  0000000000000255  GLIBCXX_3.4 _ZNKSt8time_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE3putES3_RSt8ios_basecPK2tmPKcSB_
  70
  71 00000000000bff30 g    DF .text  0000000000000019  _ZNSt18condition_variable10notify_oneEv@GLIBCXX_3.4.11
  72 00000000000666a0 g    DF .text  000000000000003f  _ZNKSt3tr14hashIRKSbIwSt11char_traitsIwESaIwEEEclES6_@GLIBCXX_3.4.10
  73 00000000002f6160  w   DO .data.rel.ro   0000000000000050  _ZTTSt18basic_stringstreamIcSt11char_traitsIcESaIcEE@GLIBCXX_3.4
  74
  75 0000000000001170 g    DF .text  0000000000000001  _ZN13AngleBracketsrSEi
  76 0000000000001190 g    DF .text  0000000000000001  _ZN13AngleBracketsrSIfEEvT_
  77 0000000000001180 g    DF .text  0000000000000001  _ZN13AngleBracketsrsIfEEvT_
  78 0000000000001160 g    DF .text  0000000000000001  _ZN13AngleBracketsrsEi
  79 END
  80
  81 my @demangledtext = split(/\n+/s, <<'END');
  82 0000000000000000      DF *UND*  0000000000000000  GCC_3.0     _Unwind_SetIP
  83 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 __towlower_l
  84 0000000000000000      DO *UND*  0000000000000000  GLIBC_2.2.5 stdout
  85 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 wmemset
  86 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 fflush
  87 0000000000000000      DF *UND*  0000000000000000  GLIBC_2.2.5 getc
  88 0000000000000000  w   D  *UND*  0000000000000000              pthread_join
  89 00000000000cfc22 g    DO .rodata        0000000000000001  GLIBCXX_3.4 std::numeric_limits<unsigned long long>::has_signaling_NaN
  90 0000000000088d80  w   DF .text  0000000000000064  GLIBCXX_3.4 std::__timepunct<char>::__timepunct(unsigned long)
  91 00000000002f40a0  w   DO .data.rel.ro   0000000000000020  GLIBCXX_3.4 VTT for std::basic_ifstream<wchar_t, std::char_traits<wchar_t> >
  92 000000000005a5f0 g    DF .text  0000000000000063  GLIBCXX_3.4.11 std::__atomic0::atomic_flag::clear(std::memory_order) volatile
  93 00000000000bdc20  w   DF .text  0000000000000024  GLIBCXX_3.4 std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> >::basic_string(wchar_t const*, unsigned long, std::allocator<wchar_t> const&)
  94 0000000000063850 g    DF .text  0000000000000062  GLIBCXX_3.4 std::ctype<wchar_t>::~ctype()
  95 00000000000898b0  w   DF .text  0000000000000255  GLIBCXX_3.4 std::time_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::put(std::ostreambuf_iterator<char, std::char_traits<char> >, std::ios_base&, char, tm const*, char const*, char const*) const
  96
  97 00000000000bff30 g    DF .text  0000000000000019  std::condition_variable::notify_one()@GLIBCXX_3.4.11
  98 00000000000666a0 g    DF .text  000000000000003f  std::tr1::hash<std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > const&>::operator()(std::basic_string<wchar_t, std::char_traits<wchar_t>, std::allocator<wchar_t> > const&) const@GLIBCXX_3.4.10
  99 00000000002f6160  w   DO .data.rel.ro   0000000000000050  VTT for std::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >@GLIBCXX_3.4
 100
 101 0000000000001170 g    DF .text  0000000000000001  AngleBrackets::operator>>=(int)
 102 0000000000001190 g    DF .text  0000000000000001  void AngleBrackets::operator>>=<float>(float)
 103 0000000000001180 g    DF .text  0000000000000001  void AngleBrackets::operator>><float>(float)
 104 0000000000001160 g    DF .text  0000000000000001  AngleBrackets::operator>>(int)
 105 END
 106
 107 for my $try (1 .. 7) {
 108     for my $i (0 .. $#mangledtext) {
 109         my $demangled = cppfilt_demangle_cpp($mangledtext[$i]) || $mangledtext[$i];
 110         is($demangled, $demangledtext[$i], "mass c++ demangling (${try}x" . (${i} + 1) . ')');
 111     }
 112 }