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* [Bug build/27385] New: Cannot compile arc.c with gcc-4.8 (error: no matching function for call to 'std::pair...')
@ 2021-02-09  8:30 shahab.vahedi at gmail dot com
  2021-02-09  8:30 ` [Bug build/27385] " shahab.vahedi at gmail dot com
                   ` (32 more replies)
  0 siblings, 33 replies; 34+ messages in thread
From: shahab.vahedi at gmail dot com @ 2021-02-09  8:30 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=27385

            Bug ID: 27385
           Summary: Cannot compile arc.c with gcc-4.8 (error: no matching
                    function for call to 'std::pair...')
           Product: gdb
           Version: 10.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: shahab.vahedi at gmail dot com
  Target Milestone: ---

This PR is suffering from the same problem as "PR build/26344":

--------8<---------
../../gdb/arch/arc.c:117:43:   required from here
/usr/include/c++/4.8.2/bits/hashtable_policy.h:195:39: error: no matching
function for call to ‘std::pair<const arc_arch_features, const
std::unique_ptr<target_desc, target_desc_deleter> >::pair(const
arc_arch_features&, target_desc*&)’
  : _M_v(std::forward<_Args>(__args)...) { }
                                       ^
/usr/include/c++/4.8.2/bits/hashtable_policy.h:195:39: note: candidates are:
In file included from /usr/include/c++/4.8.2/utility:70:0,
                 from /usr/include/c++/4.8.2/tuple:38,
                 from /usr/include/c++/4.8.2/functional:55,
                 from ../../gdb/../gdbsupport/ptid.h:35,
                 from ../../gdb/../gdbsupport/common-defs.h:123,
                 from ../../gdb/arch/arc.c:19:
/usr/include/c++/4.8.2/bits/stl_pair.h:206:9: note: template<class ... _Args1,
long unsigned int ..._Indexes1, class ... _Args2, long unsigned int
..._Indexes2> std::pair<_T1, _T2>::pair(std::tuple<_Args1 ...>&,
std::tuple<_Args2 ...>&, std::_Index_tuple<_Indexes1 ...>,
std::_Index_tuple<_Indexes2 ...>)
         pair(tuple<_Args1...>&, tuple<_Args2...>&,
         ^
-------->8---------

Thanks to Tome de Vries' investigation, same fix applies in ARC's case as well:
--------8<---------
diff --git a/gdb/arch/arc.c b/gdb/arch/arc.c
index 3808f9f..a5385ce 100644
--- a/gdb/arch/arc.c
+++ b/gdb/arch/arc.c
@@ -114,7 +114,7 @@ struct arc_arch_features_hasher
   target_desc *tdesc = arc_create_target_description (features);

   /* Add the newly created target description to the repertoire.  */
-  arc_tdesc_cache.emplace (features, tdesc);
+  arc_tdesc_cache.emplace (features, target_desc_up (tdesc));

   return tdesc;
 }
-------->8---------

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^ permalink raw reply	[flat|nested] 34+ messages in thread
end of thread, other threads:[~2021-11-23  9:00 UTC | newest]

Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-02-09  8:30 [Bug build/27385] New: Cannot compile arc.c with gcc-4.8 (error: no matching function for call to 'std::pair...') shahab.vahedi at gmail dot com
2021-02-09  8:30 ` [Bug build/27385] " shahab.vahedi at gmail dot com
2021-02-09  8:46 ` vries at gcc dot gnu.org
2021-02-09 17:38 ` cvs-commit at gcc dot gnu.org
2021-02-09 22:10 ` shahab.vahedi at gmail dot com
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