[Bug default/27012] New: segv in __aarch64_ldadd4_acq_rel

[Bug default/27012] New: segv in __aarch64_ldadd4_acq_rel

[woodard at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27012

            Bug ID: 27012
           Summary: segv in __aarch64_ldadd4_acq_rel
           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: ---

This is with /lib64/libHalf.so.24.0.0 ilmbase-2.3.0-5.fc33.aarch64 as of commit
4f8c9b17 note this is on aarch64 not x86_64

Reading symbols from abidw...
Starting program: /home/ben/Shared/Work/test/libabigail-aarch64/bin/abidw
--abidiff /lib64/libHalf.so.24.0.0

Program received signal SIGSEGV, Segmentation fault.
0x0000fffff7f26914 in __aarch64_ldadd4_acq_rel () from
/home/ben/Shared/Work/test/libabigail-aarch64/lib/libabigail.so.0
#0  0x0000fffff7f26914 in __aarch64_ldadd4_acq_rel () from
/home/ben/Shared/Work/test/libabigail-aarch64/lib/libabigail.so.0
#1  0x0000fffff7dd4e54 in __gnu_cxx::__atomic_add (__val=1,
__mem=0xfffff7d787ec <virtual thunk to abigail::ir::type_decl::~type_decl()+8>)
at /usr/include/c++/10/ext/atomicity.h:55
#2  __gnu_cxx::__atomic_add_dispatch (__val=1, __mem=0xfffff7d787ec <virtual
thunk to abigail::ir::type_decl::~type_decl()+8>) at
/usr/include/c++/10/ext/atomicity.h:96
#3  std::_Sp_counted_base<(__gnu_cxx::_Lock_policy)2>::_M_add_ref_copy
(this=0xfffff7d787e4 <virtual thunk to abigail::ir::type_decl::~type_decl()>)
at /usr/include/c++/10/bits/shared_ptr_base.h:142
#4  std::__shared_count<(__gnu_cxx::_Lock_policy)2>::operator= (__r=...,
this=<synthetic pointer>) at /usr/include/c++/10/bits/shared_ptr_base.h:750
#5  std::__shared_ptr<abigail::ir::elf_symbol,
(__gnu_cxx::_Lock_policy)2>::operator= (this=<synthetic pointer>) at
/usr/include/c++/10/bits/shared_ptr_base.h:1182
#6  std::shared_ptr<abigail::ir::elf_symbol>::operator= (this=<synthetic
pointer>) at /usr/include/c++/10/bits/shared_ptr.h:358
#7  abigail::ir::corpus::priv::build_unreferenced_symbols_tables
(this=0x492d30) at ../../../libabigail/src/abg-corpus.cc:357
#8  0x0000fffff7dd5008 in
abigail::ir::corpus::get_unreferenced_function_symbols (this=0x4ac550) at
../../../libabigail/src/abg-corpus.cc:1423
#9  0x0000fffff7e136a8 in abigail::comparison::compute_diff
(f=std::shared_ptr<abigail::ir::corpus> (use count 3, weak count 0) = {...},
s=std::shared_ptr<abigail::ir::corpus> (use count 3, weak count 0) = {...},
ctxt=std::shared_ptr<abigail::comparison::diff_context> (use count 2, weak
count 1) = {...}) at /usr/include/c++/10/bits/shared_ptr_base.h:1324
#10 0x0000000000404a74 in load_corpus_and_write_abixml (opts=...,
context=std::shared_ptr<abigail::dwarf_reader::read_context> (empty) = {...},
env=std::shared_ptr<abigail::ir::environment> (use count 1, weak count 0) =
{...}, argv=0xffffffffe9e8) at ../../../libabigail/tools/abidw.cc:590
#11 main (argc=<optimized out>, argv=0xffffffffe9e8) at
../../../libabigail/tools/abidw.cc:866

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[Bug default/27012] segv in __aarch64_ldadd4_acq_rel

[woodard at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27012

--- Comment #1 from Ben Woodard <woodard at redhat dot com> ---
Note that this problem does not show up when running on x86_64 while examining
the aarch64 ELF files.

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[Bug default/27012] segv in __aarch64_ldadd4_acq_rel

[woodard at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27012

--- Comment #2 from Ben Woodard <woodard at redhat dot com> ---
The converse test seems to fail in the same way. So while using x86_64 to
examine aarch64 ELF files works just fine. Using aarch64 to examine both
aarch64 and x86_64 versions of the same library fails.

In other words on x86_64:

$ for i in testfiles/*/*;do echo $i; abidw --abidiff $i;done
testfiles/aarch64/libHalf.so.24.0.0
testfiles/aarch64/libicutest.so.67.1
testfiles/aarch64/libraw.so.20.0.0
testfiles/aarch64/libtbb.so.2
testfiles/x86_64/libHalf.so.24.0.0
testfiles/x86_64/libicutest.so.67.1
testfiles/x86_64/libraw.so.20.0.0
testfiles/x86_64/libtbb.so.2

but on aarch64:

for i in testfiles/*/*;do echo $i;abidw --abidiff $i;done
testfiles/aarch64/libHalf.so.24.0.0
Segmentation fault (core dumped)
testfiles/aarch64/libicutest.so.67.1
abidw: ../../../libabigail/src/abg-comparison.cc:9004: void
abigail::comparison::corpus_diff::priv::ensure_lookup_tables_populated():
Assertion `__abg_cond__' failed.
Aborted (core dumped)
testfiles/aarch64/libraw.so.20.0.0
Segmentation fault (core dumped)
testfiles/aarch64/libtbb.so.2
abidw: ../../../libabigail/src/abg-reader.cc:1287: abigail::ir::type_base_sptr
abigail::xml_reader::read_context::build_or_get_type_decl(const string&, bool):
Assertion `__abg_cond__' failed.
Aborted (core dumped)
testfiles/x86_64/libHalf.so.24.0.0
Segmentation fault (core dumped)
testfiles/x86_64/libicutest.so.67.1
abidw: ../../../libabigail/src/abg-comparison.cc:9004: void
abigail::comparison::corpus_diff::priv::ensure_lookup_tables_populated():
Assertion `__abg_cond__' failed.
Aborted (core dumped)
testfiles/x86_64/libraw.so.20.0.0
Segmentation fault (core dumped)
testfiles/x86_64/libtbb.so.2
abidw: ../../../libabigail/src/abg-reader.cc:1287: abigail::ir::type_base_sptr
abigail::xml_reader::read_context::build_or_get_type_decl(const string&, bool):
Assertion `__abg_cond__' failed.
Aborted (core dumped)

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[Bug default/27012] segv in __aarch64_ldadd4_acq_rel

[woodard at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27012

Ben Woodard <woodard at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |27019


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=27019
[Bug 27019] BUILD metabug
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[Bug default/27012] segv in __aarch64_ldadd4_acq_rel

[woodard at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27012

Ben Woodard <woodard at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #3 from Ben Woodard <woodard at redhat dot com> ---
This appears to be resolved in the current trunk.

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