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* [Bug default/27970] New: instability in canonicalization causes libstdc++ to fail selfcheck
@ 2021-06-08 20:43 woodard at redhat dot com
  2021-06-08 20:44 ` [Bug default/27970] " woodard at redhat dot com
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: woodard at redhat dot com @ 2021-06-08 20:43 UTC (permalink / raw)
  To: libabigail

https://sourceware.org/bugzilla/show_bug.cgi?id=27970

            Bug ID: 27970
           Summary: instability in canonicalization causes libstdc++ to
                    fail selfcheck
           Product: libabigail
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: default
          Assignee: dodji at redhat dot com
          Reporter: woodard at redhat dot com
                CC: libabigail at sourceware dot org
  Target Milestone: ---

libstdc++.so.6.0.29 from libstdc++-11.1.1-3.fc34.x86_64 fails self check due to
what looks like instability in canonicalization. abidw --abidiff just exits
with a 1 error code to actually see the problem you must use abidiff --harmless

$ abidiff --harmless libstdc++.abixml /usr/lib64/libstdc++.so.6.0.29
Functions changes summary: 0 Removed, 4 Changed, 0 Added functions
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable

4 functions with some indirect sub-type change:

  [C] 'method virtual std::__codecvt_abstract_base<char, char,
__mbstate_t>::result std::codecvt<char, char,
__mbstate_t>::do_out(std::codecvt<char, char, __mbstate_t>::state_type&, const
std::codecvt<char, char, __mbstate_t>::intern_type*, const std::codecvt<char,
char, __mbstate_t>::intern_type*, const std::codecvt<char, char,
__mbstate_t>::intern_type*&, std::codecvt<char, char,
__mbstate_t>::extern_type*, std::codecvt<char, char,
__mbstate_t>::extern_type*, std::codecvt<char, char,
__mbstate_t>::extern_type*&) const' at codecvt.cc:55:1 has some indirect
sub-type changes:
    Please note that the symbol of this function is
_ZNKSt7codecvtIcc11__mbstate_tE6do_outERS0_PKcS4_RS4_PcS6_RS6_@@GLIBCXX_3.4
     and it aliases symbol:
_ZNKSt7codecvtIcc11__mbstate_tE5do_inERS0_PKcS4_RS4_PcS6_RS6_@@GLIBCXX_3.4
    return type changed:
      entity changed from 'typedef std::__codecvt_abstract_base<char, char,
__mbstate_t>::result' to compatible type 'enum std::codecvt_base::result' at
codecvt.h:52:1

  [C] 'method virtual std::__codecvt_abstract_base<char, char,
__mbstate_t>::result std::codecvt<char, char,
__mbstate_t>::do_unshift(std::codecvt<char, char, __mbstate_t>::state_type&,
std::codecvt<char, char, __mbstate_t>::extern_type*, std::codecvt<char, char,
__mbstate_t>::extern_type*, std::codecvt<char, char,
__mbstate_t>::extern_type*&) const' at codecvt.cc:70:1 has some indirect
sub-type changes:
    Please note that the symbol of this function is
_ZNKSt7codecvtIcc11__mbstate_tE10do_unshiftERS0_PcS3_RS3_@@GLIBCXX_3.4
     and it aliases symbol:
_ZNKSt7codecvtIwc11__mbstate_tE10do_unshiftERS0_PcS3_RS3_@@GLIBCXX_3.4
    return type changed:
      entity changed from 'typedef std::__codecvt_abstract_base<char, char,
__mbstate_t>::result' to compatible type 'enum std::codecvt_base::result' at
codecvt.h:52:1

  [C] 'method virtual std::__codecvt_abstract_base<char16_t, char,
__mbstate_t>::result std::codecvt<char16_t, char,
__mbstate_t>::do_unshift(std::codecvt<char16_t, char,
__mbstate_t>::state_type&, std::codecvt<char16_t, char,
__mbstate_t>::extern_type*, std::codecvt<char16_t, char,
__mbstate_t>::extern_type*, std::codecvt<char16_t, char,
__mbstate_t>::extern_type*&) const' at codecvt.cc:765:1 has some indirect
sub-type changes:
    Please note that the symbol of this function is
_ZNKSt7codecvtIDsc11__mbstate_tE10do_unshiftERS0_PcS3_RS3_@@GLIBCXX_3.4.21
     and it aliases symbols:
_ZNKSt19__codecvt_utf8_baseIDsE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt20__codecvt_utf16_baseIDsE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt7codecvtIDic11__mbstate_tE10do_unshiftERS0_PcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt25__codecvt_utf8_utf16_baseIwE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt19__codecvt_utf8_baseIDiE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt20__codecvt_utf16_baseIDiE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt25__codecvt_utf8_utf16_baseIDsE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt20__codecvt_utf16_baseIwE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt25__codecvt_utf8_utf16_baseIDiE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21,
_ZNKSt19__codecvt_utf8_baseIwE10do_unshiftER11__mbstate_tPcS3_RS3_@@GLIBCXX_3.4.21
    return type changed:
      entity changed from 'typedef std::__codecvt_abstract_base<char16_t, char,
__mbstate_t>::result' to compatible type 'enum std::codecvt_base::result' at
codecvt.h:52:1

  [C] 'method virtual std::__codecvt_abstract_base<char16_t, char8_t,
__mbstate_t>::result std::codecvt<char16_t, char8_t,
__mbstate_t>::do_unshift(std::codecvt<char16_t, char8_t,
__mbstate_t>::state_type&, std::codecvt<char16_t, char8_t,
__mbstate_t>::extern_type*, std::codecvt<char16_t, char8_t,
__mbstate_t>::extern_type*, std::codecvt<char16_t, char8_t,
__mbstate_t>::extern_type*&) const' at codecvt.cc:914:1 has some indirect
sub-type changes:
    Please note that the symbol of this function is
_ZNKSt7codecvtIDsDu11__mbstate_tE10do_unshiftERS0_PDuS3_RS3_@@GLIBCXX_3.4.26
     and it aliases symbol:
_ZNKSt7codecvtIDiDu11__mbstate_tE10do_unshiftERS0_PDuS3_RS3_@@GLIBCXX_3.4.26
    return type changed:
      entity changed from 'typedef std::__codecvt_abstract_base<char16_t,
char8_t, __mbstate_t>::result' to compatible type 'enum
std::codecvt_base::result' at codecvt.h:52:1

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^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2021-09-23 11:56 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-08 20:43 [Bug default/27970] New: instability in canonicalization causes libstdc++ to fail selfcheck woodard at redhat dot com
2021-06-08 20:44 ` [Bug default/27970] " woodard at redhat dot com
2021-09-07 17:46 ` woodard at redhat dot com
2021-09-08 15:02 ` woodard at redhat dot com
2021-09-21 19:35 ` woodard at redhat dot com
2021-09-22 15:21 ` dodji at redhat dot com
2021-09-22 15:22 ` [Bug default/27970] Duplicated member functions cause spurious self comparison changes dodji at redhat dot com
2021-09-23 11:56 ` dodji at redhat dot com

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