getlexstatic_o.gdb

$ gdb --args /home/dan/Source/perl6/install/bin/moar --libpath=src/vm/moar/stage0 src/vm/moar/stage0/nqp.moarvm --bootstrap --module-path=gen/moar/stage1 --setting-path=gen/moar/stage1 --setting=NQPCORE --no-regex-lib --target=mbc --output=gen/moar/stage1/NQPHLL.moarvm gen/moar/stage1/NQPHLL.nqp
GNU gdb (Ubuntu 8.0.1-0ubuntu1) 8.0.1
Copyright (C) 2017 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Reading symbols from /home/dan/Source/perl6/install/bin/moar...done.
(gdb) r
Starting program: /home/dan/Source/perl6/install/bin/moar --libpath=src/vm/moar/stage0 src/vm/moar/stage0/nqp.moarvm --bootstrap --module-path=gen/moar/stage1 --setting-path=gen/moar/stage1 --setting=NQPCORE --no-regex-lib --target=mbc --output=gen/moar/stage1/NQPHLL.moarvm gen/moar/stage1/NQPHLL.nqp
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7ffff6322700 (LWP 7684)]

Thread 1 "moar" received signal SIGSEGV, Segmentation fault.
MVM_spesh_log_static (tc=0x555555758c40, value=0x555555ce3178) at src/spesh/log.c:152
152         MVMSpeshLogEntry *entry = &(sl->body.entries[sl->body.used]);
(gdb) bt
#0  MVM_spesh_log_static (tc=0x555555758c40, value=0x555555ce3178) at src/spesh/log.c:152
#1  0x00007ffff558ef4c in ?? ()
#2  0x0000555555758c40 in ?? ()
#3  0x00007ffff7cddcc0 in obj_int_callsite () from //home/dan/Source/perl6/install/lib/libmoar.so
#4  0x0000555555851c68 in ?? ()
#5  0x00007ffff04dc220 in ?? ()
#6  0x0000555556779830 in ?? ()
#7  0x00007ffff766537a in MVM_frame_invoke (tc=0x55555838b890, static_frame=<optimized out>, callsite=0x7fffffffd7f0, args=0x1, outer=<optimized out>, code_ref=<optimized out>, spesh_cand=<optimized out>) at src/core/frame.c:550
#8  0x0000555555758c40 in ?? ()
#9  0x000055555583a3c8 in ?? ()
#10 0x0000555555758c40 in ?? ()
#11 0x0000555555851c50 in ?? ()
#12 0x00007ffff765c0ba in MVM_interp_run (tc=tc@entry=0x555555758c40, initial_invoke=0x7ffff52af118, invoke_data=0x0) at src/core/interp.c:5729
#13 0x00007ffff7729115 in MVM_vm_run_file (instance=0x555555758260, filename=<optimized out>) at src/moar.c:407
#14 0x00005555555554c0 in main (argc=11, argv=0x7fffffffddb8) at src/main.c:256
(gdb) print *tc
$1 = {thread_id = 1, thread_obj = 0x5555557c6bd0, instance = 0x555555758260, num_locks = 0, nursery_fromspace = 0x7ffff6323010, nursery_tospace = 0x7ffff4fbf010, nursery_alloc = 0x7ffff52bd220, nursery_alloc_limit = 0x7ffff53bf010, 
  gc_status = 0, gen2 = 0x555555759250, nursery_fromspace_size = 4194304, nursery_tospace_size = 4194304, allocate_in_gen2 = 0, gc_promoted_bytes = 1425828, num_temproots = 0, mark_temproots = 0, alloc_temproots = 16, 
  temproots = 0x555555758fb0, num_gen2roots = 12362, alloc_gen2roots = 16384, gen2roots = 0x5555563a0470, num_finalize = 0, alloc_finalize = 0, finalize = 0x0, num_finalizing = 0, alloc_finalizing = 0, finalizing = 0x0, gc_in_tray = 0x0, 
  gc_work = 0x555555ec96f0, gc_work_size = 16, gc_work_count = 1, thread_fsa = 0x5555557599d0, interp_cur_op = 0x7fffffffda08, interp_bytecode_start = 0x7fffffffda10, interp_reg_base = 0x7fffffffda18, interp_cu = 0x7fffffffda20, 
  interp_jump = {{__jmpbuf = {93824994348096, -5153928619735522953, 93824994345568, 93824994339968, 4, 5, 5153928618894942583, 5153947506463727991}, __mask_was_saved = 0, __saved_mask = {__val = {0 <repeats 16 times>}}}}, 
  cur_frame = 0x7ffff7fd41a0, thread_entry_frame = 0x0, stack_first = 0x7ffff7fd4010, stack_current = 0x7ffff7fd4010, active_handlers = 0x0, last_handler_result = 0x0, last_payload = 0x5555557bed40, current_frame_nr = 1457940, 
  next_frame_nr = 1457956, spesh_log = 0x5555560c31d0, spesh_log_quota = 1, spesh_sim_stack = 0x5555557cbf70, num_compunit_extra_logs = 5, spesh_cid = 127290, osr_hunt_frame_nr = 1457239, osr_hunt_num_spesh_candidates = 1, 
  loop = 0x7ffff7dd3c20 <default_loop_struct>, ex_release_mutex = 0x0, serialized_size = 0, serialized = 0x0, serialized_string_heap = 0x0, sc_wb_disable_depth = 0, compiling_scs = 0x5555563464f0, cur_dispatcher = 0x0, 
  cur_dispatcher_for = 0x0, native_callback_cache = 0x0, rand_state = {17575705166209042969, 11237995845637950439}, nfa_done = 0x555555def490, nfa_curst = 0x555555defa10, nfa_nextst = 0x555555deff90, nfa_alloc_states = 349, 
  nfa_fates = 0x555555e49270, nfa_fates_len = 34, nfa_longlit = 0x555555e49390, nfa_longlit_len = 34, multi_dim_indices = 0x0, num_multi_dim_indices = 0, prof_data = 0x0}
  (gdb) print *value
$2 = {header = {sc_forward_u = {forwarder = 0x0, sc = {sc_idx = 0, idx = 0}, st = 0x0}, owner = 1, flags = 16, size = 72}, st = 0x5555557aa298}

getlexstatic_o.lldb

$ lldb -- /home/dan/Source/perl6/install/bin/moar --libpath=src/vm/moar/stage0 src/vm/moar/stage0/nqp.moarvm --bootstrap --module-path=gen/moar/stage1 --setting-path=gen/moar/stage1 --setting=NQPCORE --no-regex-lib --target=mbc --output=gen/moar/stage1/NQPHLL.moarvm gen/moar/stage1/NQPHLL.nqp
(lldb) target create "/home/dan/Source/perl6/install/bin/moar"
Current executable set to '/home/dan/Source/perl6/install/bin/moar' (x86_64).
(lldb) settings set -- target.run-args  "--libpath=src/vm/moar/stage0" "src/vm/moar/stage0/nqp.moarvm" "--bootstrap" "--module-path=gen/moar/stage1" "--setting-path=gen/moar/stage1" "--setting=NQPCORE" "--no-regex-lib" "--target=mbc" "--output=gen/moar/stage1/NQPHLL.moarvm" "gen/moar/stage1/NQPHLL.nqp"
(lldb) r
Process 22820 launched: '/home/dan/Source/perl6/install/bin/moar' (x86_64)
Process 22820 stopped
* thread #1, name = 'moar', stop reason = signal SIGTRAP
    frame #0: 0x00007ffff554265e
->  0x7ffff554265e: movq   %r14, %rdi
    0x7ffff5542661: callq  *0x108a5(%rip)
    0x7ffff5542667: movq   %rax, %r8
    0x7ffff554266a: je     0x7ffff5542682
(lldb) si
Process 22820 stopped
* thread #1, name = 'moar', stop reason = instruction step into
    frame #0: 0x00007ffff5542661
->  0x7ffff5542661: callq  *0x108a5(%rip)
    0x7ffff5542667: movq   %rax, %r8
    0x7ffff554266a: je     0x7ffff5542682
    0x7ffff554266c: movq   0x748(%rbx), %r9
(lldb) si
Process 22820 stopped
* thread #1, name = 'moar', stop reason = instruction step into
    frame #0: libmoar.so`MVM_spesh_log_is_logging(tc=0x0000555555758c40) at log.h:29
   26  
   27   /* Quick check if we are logging, to save function call overhead. */
   28   MVM_STATIC_INLINE MVMint32 MVM_spesh_log_is_logging(MVMThreadContext *tc) {
-> 29       MVMFrame *cur_frame = tc->cur_frame;
   30       return cur_frame->spesh_cand == NULL && tc->cur_frame->spesh_correlation_id && tc->spesh_log;
   31   }
   32  
(lldb) print $rax
(unsigned long) $0 = 93824998338664
.
.
.
(lldb) s
Process 22820 stopped
* thread #1, name = 'moar', stop reason = step in
    frame #0: libmoar.so`MVM_spesh_log_is_logging(tc=0x0000555555758c40) at log.h:31
   28   MVM_STATIC_INLINE MVMint32 MVM_spesh_log_is_logging(MVMThreadContext *tc) {
   29       MVMFrame *cur_frame = tc->cur_frame;
   30       return cur_frame->spesh_cand == NULL && tc->cur_frame->spesh_correlation_id && tc->spesh_log;
-> 31   }
   32  
   33   void MVM_spesh_log_initialize_thread(MVMThreadContext *tc, MVMint32 main_thread);
   34   MVMSpeshLog * MVM_spesh_log_create(MVMThreadContext *tc, MVMThread *target_thread);
(lldb) print $rax
(unsigned long) $1 = 0
(lldb) print *cur_frame
(MVMFrame) $2 = {
  header = {
    sc_forward_u = {
      forwarder = 0x0000000000000000
      sc = (sc_idx = 0, idx = 0)
      st = 0x0000000000000000
    }
    owner = 1
    flags = 4
    size = 184
  }
  env = 0x0000555555836070
  work = 0x0000555555ab9750
  args = 0x0000555555ab9eb0
  cur_args_callsite = 0x00007ffff7cddd40
  outer = 0x00007ffff64800d8
  caller = 0x00007ffff64800d8
  static_info = 0x0000555555a27ee0
  code_ref = 0x00007ffff6480090
  params = {
    callsite = 0x00007ffff7d717c0
    arg_flags = 0x0000000000000000 <no value available>
    args = 0x0000555555aa4f10
    named_used = (byte_array = <no value available>, bit_field = 0)
    named_used_size = 0
    arg_count = 0
    num_pos = 0
    flag_count = 2
  }
  effective_spesh_slots = 0x00007ffff016d760
  spesh_cand = 0x00007ffff0145840
  return_address = 0x00007ffff5a336de "r\x01\x1c"
  return_value = 0x00005555579b9360
  return_type = '\x01'
  flags = '\0'
  allocd_work = 2000
  allocd_env = 56
  spesh_correlation_id = 119576
  sequence_nr = 1393072
  jit_entry_label = 0x00007ffff55425d0
  extra = 0x0000000000000000
}
(lldb)

getlexstatic_o.valgrind

$ valgrind /home/dan/Source/perl6/install/bin/moar --libpath=src/vm/moar/stage0 src/vm/moar/stage0/nqp.moarvm --bootstrap --module-path=gen/moar/stage1 --setting-path=gen/moar/stage1 --setting=NQPCORE --no-regex-lib --target=mbc --output=gen/moar/stage1/NQPHLL.moarvm gen/moar/stage1/NQPHLL.nqp
==7988== Memcheck, a memory error detector
==7988== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==7988== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==7988== Command: /home/dan/Source/perl6/install/bin/moar --libpath=src/vm/moar/stage0 src/vm/moar/stage0/nqp.moarvm --bootstrap --module-path=gen/moar/stage1 --setting-path=gen/moar/stage1 --setting=NQPCORE --no-regex-lib --target=mbc --output=gen/moar/stage1/NQPHLL.moarvm gen/moar/stage1/NQPHLL.nqp
==7988== 
==7988== Invalid read of size 4
==7988==    at 0x509E454: MVM_spesh_log_static (log.c:152)
==7988==    by 0xE471C51: ???
==7988==    by 0x50130B9: MVM_interp_run (interp.c:5729)
==7988==    by 0x50E0114: MVM_vm_run_file (moar.c:407)
==7988==    by 0x1094BF: main (main.c:256)
==7988==  Address 0x28 is not stack'd, malloc'd or (recently) free'd
==7988== 
==7988== 
==7988== Process terminating with default action of signal 11 (SIGSEGV)
==7988==  Access not within mapped region at address 0x28
==7988==    at 0x509E454: MVM_spesh_log_static (log.c:152)
==7988==    by 0xE471C51: ???
==7988==    by 0x50130B9: MVM_interp_run (interp.c:5729)
==7988==    by 0x50E0114: MVM_vm_run_file (moar.c:407)
==7988==    by 0x1094BF: main (main.c:256)
==7988==  If you believe this happened as a result of a stack
==7988==  overflow in your program's main thread (unlikely but
==7988==  possible), you can try to increase the size of the
==7988==  main thread stack using the --main-stacksize= flag.
==7988==  The main thread stack size used in this run was 8388608.
==7988== 
==7988== HEAP SUMMARY:
==7988==     in use at exit: 56,727,768 bytes in 190,245 blocks
==7988==   total heap usage: 981,376 allocs, 791,131 frees, 477,818,699 bytes allocated
==7988== 
==7988== LEAK SUMMARY:
==7988==    definitely lost: 0 bytes in 0 blocks
==7988==    indirectly lost: 0 bytes in 0 blocks
==7988==      possibly lost: 234,136 bytes in 4,179 blocks
==7988==    still reachable: 56,493,632 bytes in 186,066 blocks
==7988==         suppressed: 0 bytes in 0 blocks
==7988== Rerun with --leak-check=full to see details of leaked memory
==7988== 
==7988== For counts of detected and suppressed errors, rerun with: -v
==7988== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)
Segmentation fault (core dumped)