gdb 8.3: "handler for the OSI ABI "FreeBSD" is not built into this configuration"

Martin Simmons "martin@qqxnjvamvxwx"@dyxyl.com
Thu May 28 17:30:46 GMT 2020


OK, that shows a reasonable set of registers and a reasonable backtrace.
It shows that llvm-tblgen jumped to address 0 from inside __once_proxy
for some reason.

Gdb seems to be working, at least for this core file, so you can safely
ignore the OS ABI warning.

__Martin



>>>>> On Thu, 28 May 2020 08:40:03 -0600, Chris Nicol said:
> 
> Thanks, Martin. Here is the log from
> 
> /usr/local/bin/gdb ./llvm-tblgen llvm-tblgen.core:
> 
> nicolc@phonix:~/llvm/llvm-9.0.1.src/Mybuilddir/bin %  /usr/local/bin/gdb 
> ./llvm-tblgen llvm-tblgen.core
> /usr/local/bin/gdb: warning: A handler for the OS ABI "FreeBSD" is not 
> built into this configuration
> of GDB.  Attempting to continue with the default sparc settings.
> 
> GNU gdb (GDB) 9.1
> Copyright (C) 2020 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later 
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> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
> Type "show copying" and "show warranty" for details.
> This GDB was configured as "sparc64-unknown-freebsd12.1".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>.
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> 
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from ./llvm-tblgen...
> [New LWP 100161]
> Core was generated by `./llvm-tblgen -version'.
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x0000000000000000 in ?? ()
> (gdb) info all
> g0             0x0                 0
> g1             0x0                 0
> g2             0x417bfddc          1098644956
> g3             0x80000000          2147483648
> g4             0x4090c000          1083228160
> g5             0x408a6688          1082812040
> g6             0x0                 0
> g7             0x408ad910          1082841360
> o0             0x408a6698          1082812056
> o1             0x2                 2
> o2             0x10                16
> o3             0xf4                244
> o4             0x106838            1075256
> o5             0x7fffffff          2147483647
> sp             0x7fdffffd5e1       0x7fdffffd5e1
> o7             0x41017944          1090615620
> l0             0x0                 0
> l1             0x4090c000          1083228160
> l2             0x1                 1
> l3             0x0                 0
> l4             0x0                 0
> l5             0x0                 0
> l6             0x0                 0
> l7             0x41238000          1092845568
> i0             0x884c80            8932480
> i1             0x3                 3
> i2             0x0                 0
> i3             0x0                 0
> i4             0x0                 0
> i5             0x0                 0
> fp             0x7fdffffd691       0x7fdffffd691
> i7             0x409addf0          1083891184
> f0             0                   (raw 0x00000000)
> f1             0                   (raw 0x00000000)
> f2             0                   (raw 0x00000000)
> f3             0                   (raw 0x00000000)
> f4             0                   (raw 0x00000000)
> f5             0                   (raw 0x00000000)
> f6             0                   (raw 0x00000000)
> f7             0                   (raw 0x00000000)
> f8             0.00999999978       (raw 0x3c23d70a)
> f9             0                   (raw 0x00000000)
> f10            2                   (raw 0x40000000)
> f11            0                   (raw 0x00000000)
> --Type <RET> for more, q to quit, c to continue without paging--
> f12            0                   (raw 0x00000000)
> f13            0                   (raw 0x00000000)
> f14            0                   (raw 0x00000000)
> f15            0                   (raw 0x00000000)
> f16            0                   (raw 0x00000000)
> f17            0                   (raw 0x00000000)
> f18            0                   (raw 0x00000000)
> f19            0                   (raw 0x00000000)
> f20            0                   (raw 0x00000000)
> f21            0                   (raw 0x00000000)
> f22            0                   (raw 0x00000000)
> f23            0                   (raw 0x00000000)
> f24            0                   (raw 0x00000000)
> f25            0                   (raw 0x00000000)
> f26            0                   (raw 0x00000000)
> f27            0                   (raw 0x00000000)
> f28            0                   (raw 0x00000000)
> f29            0                   (raw 0x00000000)
> f30            0                   (raw 0x00000000)
> f31            0                   (raw 0x00000000)
> f32            0                   (raw 0x0000000000000000)
> f34            0                   (raw 0x0000000000000000)
> f36            0                   (raw 0x0000000000000000)
> f38            0                   (raw 0x0000000000000000)
> f40            0                   (raw 0x0000000000000000)
> f42            0                   (raw 0x0000000000000000)
> f44            0                   (raw 0x0000000000000000)
> f46            0                   (raw 0x0000000000000000)
> f48            0                   (raw 0x0000000000000000)
> f50            0                   (raw 0x0000000000000000)
> f52            0                   (raw 0x0000000000000000)
> f54            0                   (raw 0x0000000000000000)
> f56            0                   (raw 0x0000000000000000)
> f58            0                   (raw 0x0000000000000000)
> f60            0                   (raw 0x0000000000000000)
> f62            0                   (raw 0x0000000000000000)
> pc             0x0                 0x0
> npc            0x4                 0x4
> state          0x4400001205        292057780741
> fsr            0x0                 [ ]
> fprs           0x3                 [ DL DU ]
> y              0x0                 0
> cwp            0x5                 5
> pstate         0x12                [ IE PEF ]
> --Type <RET> for more, q to quit, c to continue without paging--
> asi            0x0                 0
> ccr            0x44                [ icc.z xcc.z ]
> d0             0                   (raw 0x0000000000000000)
> d2             0                   (raw 0x0000000000000000)
> d4             0                   (raw 0x0000000000000000)
> d6             0                   (raw 0x0000000000000000)
> d8             5.3776417829113669e-19 (raw 0x3c23d70a00000000)
> d10            2                   (raw 0x4000000000000000)
> d12            0                   (raw 0x0000000000000000)
> d14            0                   (raw 0x0000000000000000)
> d16            0                   (raw 0x0000000000000000)
> d18            0                   (raw 0x0000000000000000)
> d20            0                   (raw 0x0000000000000000)
> d22            0                   (raw 0x0000000000000000)
> d24            0                   (raw 0x0000000000000000)
> d26            0                   (raw 0x0000000000000000)
> d28            0                   (raw 0x0000000000000000)
> d30            0                   (raw 0x0000000000000000)
> d32            0                   (raw 0x0000000000000000)
> d34            0                   (raw 0x0000000000000000)
> d36            0                   (raw 0x0000000000000000)
> d38            0                   (raw 0x0000000000000000)
> d40            0                   (raw 0x0000000000000000)
> d42            0                   (raw 0x0000000000000000)
> d44            0                   (raw 0x0000000000000000)
> d46            0                   (raw 0x0000000000000000)
> d48            0                   (raw 0x0000000000000000)
> d50            0                   (raw 0x0000000000000000)
> d52            0                   (raw 0x0000000000000000)
> d54            0                   (raw 0x0000000000000000)
> d56            0                   (raw 0x0000000000000000)
> d58            0                   (raw 0x0000000000000000)
> d60            0                   (raw 0x0000000000000000)
> d62            0                   (raw 0x0000000000000000)
> q0             0                   (raw 0x00000000000000000000000000000000)
> q4             0                   (raw 0x00000000000000000000000000000000)
> q8             7.03365791880182537906194915943984275e-298 (raw 
> 0x3c23d70a000000004000000000000000)
> q12            0                   (raw 0x00000000000000000000000000000000)
> q16            0                   (raw 0x00000000000000000000000000000000)
> q20            0                   (raw 0x00000000000000000000000000000000)
> q24            0                   (raw 0x00000000000000000000000000000000)
> q28            0                   (raw 0x00000000000000000000000000000000)
> q32            0                   (raw 0x00000000000000000000000000000000)
> q36            0                   (raw 0x00000000000000000000000000000000)
> --Type <RET> for more, q to quit, c to continue without paging--
> q40            0                   (raw 0x00000000000000000000000000000000)
> q44            0                   (raw 0x00000000000000000000000000000000)
> q48            0                   (raw 0x00000000000000000000000000000000)
> q52            0                   (raw 0x00000000000000000000000000000000)
> q56            0                   (raw 0x00000000000000000000000000000000)
> q60            0                   (raw 0x00000000000000000000000000000000)
> (gdb) where
> #0  0x0000000000000000 in ?? ()
> #1  0x000000004101794c in __once_proxy () from 
> /usr/local/lib/gcc9/libstdc++.so.6
> #2  0x00000000409addf8 in pthread_once () from /lib/libthr.so.3
> #3  0x000000000059ca94 in __gthread_once (__once=0x884c80 
> <mutex_init_flag>, __func=0x41017920 <__once_proxy>)
>      at 
> /usr/local/lib/gcc9/include/c++/sparc64-portbld-freebsd12.1/bits/gthr-default.h:700
> #4  0x000000000059ceb0 in std::call_once<void (&)()> (__once=..., 
> __f=@0x59c494: {void (void)} 0x59c494 <initializeMutex()>)
>      at /usr/local/lib/gcc9/include/c++/mutex:683
> #5  0x000000000059cc14 in llvm::call_once<void (&)()> (flag=..., 
> F=@0x59c494: {void (void)} 0x59c494 <initializeMutex()>)
>      at 
> /home/nicolc/llvm/llvm-9.0.1.src/include/llvm/Support/Threading.h:104
> #6  0x000000000059c52c in getManagedStaticMutex () at 
> /home/nicolc/llvm/llvm-9.0.1.src/lib/Support/ManagedStatic.cpp:30
> #7  0x000000000059c5d8 in llvm::ManagedStaticBase::RegisterManagedStatic 
> (this=0x884230 <GlobalParser>,
>      Creator=0x577f08 <llvm::object_creator<(anonymous 
> namespace)::CommandLineParser>::call()>,
>      Deleter=0x577fb0 <llvm::object_deleter<(anonymous 
> namespace)::CommandLineParser>::call(void*)>)
>      at /home/nicolc/llvm/llvm-9.0.1.src/lib/Support/ManagedStatic.cpp:38
> #8  0x000000000057784c in llvm::ManagedStatic<(anonymous 
> namespace)::CommandLineParser, llvm::object_creator<(anonymous 
> namespace)::CommandLineParser>, llvm::object_deleter<(anonymous 
> namespace)::CommandLineParser> >::operator* (this=0x884230 <GlobalParser>)
>      at 
> /home/nicolc/llvm/llvm-9.0.1.src/include/llvm/Support/ManagedStatic.h:89
> #9  0x0000000000576cc0 in llvm::ManagedStatic<(anonymous 
> namespace)::CommandLineParser, llvm::object_creator<(anonymous 
> namespace)::CommandLineParser>, llvm::object_deleter<(anonymous 
> namespace)::CommandLineParser> >::operator-> (this=0x884230 <GlobalParser>)
>      at 
> /home/nicolc/llvm/llvm-9.0.1.src/include/llvm/Support/ManagedStatic.h:94
> #10 0x000000000056921c in llvm::cl::OptionCategory::registerCategory 
> (this=0x883288 <AsmMatcherEmitterCat>)
>      at /home/nicolc/llvm/llvm-9.0.1.src/lib/Support/CommandLine.cpp:468
> #11 0x000000000013e508 in llvm::cl::OptionCategory::OptionCategory 
> (this=0x883288 <AsmMatcherEmitterCat>, Name=..., Description=...)
>      at 
> /home/nicolc/llvm/llvm-9.0.1.src/include/llvm/Support/CommandLine.h:199
> #12 0x0000000000139400 in __static_initialization_and_destruction_0 
> (__initialize_p=1, __priority=65535)
>      at 
> /home/nicolc/llvm/llvm-9.0.1.src/utils/TableGen/AsmMatcherEmitter.cpp:126
> #13 0x000000000013951c in _GLOBAL__sub_I_AsmMatcherEmitter.cpp(void) () 
> at 
> /home/nicolc/llvm/llvm-9.0.1.src/utils/TableGen/AsmMatcherEmitter.cpp:3918
> #14 0x000000004087f504 in ?? () from /libexec/ld-elf.so.1
> Backtrace stopped: previous frame identical to this frame (corrupt stack?)
> (gdb)
> 
> On 5/28/2020 4:57 AM, Martin Simmons wrote:
> > Hi Chris,
> > 
> > I received your email below but it looks like the mailing list rejected
> > it.  For a small amount of output, it is better to just paste the text
> > into the email rather than attaching an rtf.
> > 
> > I can see what causes the warning but I think it might be unrelated to
> > the problem of debugging llvm-tblgen.
> > 
> > Rather than running gdb inside gdb, please just run:
> > 
> > /usr/local/bin/gdb ./llvm-tblgen llvm-tblgen.core
> > 
> > and then use the gdb commands:
> > 
> > info all
> > where
> > 
> > and send the full output.
> > 
> > __Martin
> 
> 
> -- 
> ______________________________________________________________________
> Dr. Christopher J. Nicol,               Phone:          (403) 329-2261
> University Librarian and                FAX:            (403) 329-2234
> Professor of Economics,
> The University of Lethbridge,           E-Mail:        nicolc@uleth.ca
> Lethbridge, Alberta, T1K 3M4, CANADA.   http://people.uleth.ca/~nicolc
> 


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