backtrace.log

[dan@alexandria perl6]$ gdb --args ./install/bin/raku --profile -e 'my @a = ^2_000; my @b; for ^1_000 { @b = @a.rotate(3); }; say @b.head'
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Reading symbols from ./install/bin/raku...
(gdb) b MVM_dump_backtrace
Function "MVM_dump_backtrace" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (MVM_dump_backtrace) pending.
(gdb) r
Starting program: /home/dan/Source/perl6/install/bin/raku --profile -e my\ @a\ =\ \^2_000\;\ my\ @b\;\ for\ \^1_000\ \{\ @b\ =\ @a.rotate\(3\)\;\ \}\;\ say\ @b.head
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7ffff6e65700 (LWP 34293)]

Thread 1 "raku" hit Breakpoint 1, MVM_dump_backtrace (tc=tc@entry=0x555555559fb0) at src/core/exceptions.c:628
628     void MVM_dump_backtrace(MVMThreadContext *tc) {
(gdb) bt
#0  MVM_dump_backtrace (tc=tc@entry=0x555555559fb0) at src/core/exceptions.c:628
#1  0x00007ffff79c446a in MVM_profile_log_enter (mode=3, sf=0x555556f45ba8, tc=0x555555559fb0) at src/profiler/log.c:159
#2  MVM_profile_log_enter (tc=0x555555559fb0, sf=0x555556f45ba8, mode=3) at src/profiler/log.c:53
#3  0x00007ffff6660054 in ?? ()
#4  0x0000555555559fb0 in ?? ()
#5  0x00007ffff7e966c0 in methnotfound_callsite () from //home/dan/Source/perl6/install/lib/libmoar.so
#6  0x00007ffff0029de0 in ?? ()
#7  0x0000555555559fb0 in ?? ()
#8  0x00007ffff7e966c0 in methnotfound_callsite () from //home/dan/Source/perl6/install/lib/libmoar.so
#9  0x00007ffff78dc621 in MVM_frame_invoke (tc=0x7fffffffde30, static_frame=<optimized out>, callsite=0x5555556af6e0, args=0x5555555ee470, outer=<optimized out>, code_ref=<optimized out>, spesh_cand=<optimized out>) at src/core/frame.c:574
#10 0x0000555555559fb0 in ?? ()
#11 0x0000000000000000 in ?? ()
(gdb)