path: root/erts/etc/unix/etp-commands

#
# %CopyrightBegin%
# 
# Copyright Ericsson AB 2005-2009. All Rights Reserved.
# 
# The contents of this file are subject to the Erlang Public License,
# Version 1.1, (the "License"); you may not use this file except in
# compliance with the License. You should have received a copy of the
# Erlang Public License along with this software. If not, it can be
# retrieved online at http://www.erlang.org/.
# 
# Software distributed under the License is distributed on an "AS IS"
# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
# the License for the specific language governing rights and limitations
# under the License.
# 
# %CopyrightEnd%
#

############################################################################
# Help commands
# 

define etp-help
  help etp-help
end

document etp-help
%---------------------------------------------------------------------------
% etp-help
% 
% Same as "help etp-help"
% 
% Emulator Toolbox for Pathologists
% - GDB command toolbox for analyzing core dumps from the
% Erlang emulator (BEAM).
% 
% Should work for 32-bit erts-5.2/R9B, ...
% 
% The commands are prefixed with:
%   etp:  Acronym for erts-term-print
%   etpf: Acronym for erts-term-print-flat
% 
% User commands (these have help themselves):
% 
% Most useful:
%   etp, etpf
% 
% Useful for doing step-by-step traversal of lists and tuples after 
% calling the toplevel command etpf:
%   etpf-cons, etpf-boxed, 
% 
% Special commands for not really terms:
%   etp-mfa, etp-cp, 
%   etp-msgq, etpf-msgq, 
%   etp-stacktrace, etp-stackdump, etpf-stackdump, etp-dictdump
%   etp-offheapdump, etpf-offheapdump,
%   etp-print-procs, etp-search-heaps, etp-search-alloc,
%   etp-ets-tables, etp-ets-tabledump
%
% Complex commands that use the Erlang support module.
%   etp-overlapped-heaps, etp-chart, etp-chart-start, etp-chart-end
% 
% Erlang support module handling commands:
%   etp-run
%
% Parameter handling commands:
%   etp-show, etp-set-max-depth, etp-set-max-string-length
% 
% Other commands you may find in this toolbox are suffixed -1, -2, ...
% and are internal; not for the console user.
% 
% The Erlang support module requires `erl' and `erlc' in the path.
% The compiled "erl_commands.beam" file is stored in the current
% working directory, so it is thereby in the search path of `erl'.
% 
% These are just helpful commands when analyzing core dumps, but
% you will not get away without knowing the gory details of the
% tag bits. Do not forget about the e.g p, p/x, x and x/4x commands.
%
% Execution speed of user defined gdb commands is not lightning fast.
% It may well take half a minute to dump a complex term with the default
% max depth values on our old Sparc Ultra-10's.
%
% To use the Erlang support module, the environment variable ROOTDIR
% must be set to the toplevel installation directory of Erlang/OTP,
% so the etp-commands file becomes:
%     $ROOTDIR/erts/etc/unix/etp-commands
% Also, erl and erlc must be in the path.
%---------------------------------------------------------------------------
end

############################################################################
# Toplevel commands
# 

define etp
# Args: Eterm
#
# Reentrant
#
  etp-1 ((Eterm)($arg0)) 0
  printf ".\n"
end

document etp
%---------------------------------------------------------------------------
% etp Eterm
% 
% Takes a toplevel Erlang term and prints the whole deep term
% very much as in Erlang itself. Up to a max depth. See etp-show.
%---------------------------------------------------------------------------
end

define etp-1
# Args: Eterm, int depth
#
# Reentrant
#
  if (($arg0) & 0x3) == 1
    # Cons pointer
    if $etp_flat
      printf "<etpf-cons %#x>", ($arg0)
    else
      etp-list-1 ($arg0) ($arg1)
    end
  else
    if (($arg0) & 0x3) == 2
      if $etp_flat
        printf "<etpf-boxed %#x>", ($arg0)
      else
        etp-boxed-1 ($arg0) ($arg1)
      end
    else
      if (($arg0) & 0x3) == 3
        etp-immediate-1 ($arg0)
      else
        # (($arg0) & 0x3) == 0
        if (($arg0) == 0x0)
          printf "<the non-value>"
        else
          if (($arg0) == 0x4)
            printf "<the non-value debug>"
          else
            etp-cp-1 ($arg0)
          end
        end
      end
    end
  end
end

define etpf
# Args: Eterm
#
# Non-reentrant
  set $etp_flat = 1
  etp-1 ((Eterm)($arg0))
  set $etp_flat = 0
  printf ".\n"
end

document etpf
%---------------------------------------------------------------------------
% etpf Eterm
% 
% Takes a toplevel Erlang term and prints it is. If it is a deep term 
% print which command to use to traverse down one level.
%---------------------------------------------------------------------------
end

############################################################################
# Commands for nested terms. Some are recursive.
#

define etp-list-1
# Args: Eterm cons_cell, int depth
#
# Reentrant
#
  if (($arg0) & 0x3) != 0x1
    printf "#NotCons<%#x>", ($arg0)
  else
    # Cons pointer
    if $etp_chart
      etp-chart-entry-1 ($arg0) ($arg1) 2
    end
    etp-list-printable-1 ($arg0) ($arg1)
    if !$etp_list_printable
      # Print normal list
      printf "["
      etp-list-2 ($arg0) (($arg1)+1)
    end
  end
end

define etp-list-printable-1
# Args: Eterm list, int depth
#
# Non-reentrant
#
# Returns: $etp_list_printable
#
  if (($arg0) & 0x3) != 0x1
    printf "#NotCons<%#x>", ($arg0)
  else
    # Loop to check if it is a printable string
    set $etp_list_p = ($arg0)
    set $etp_list_printable = ($etp_list_p != $etp_nil)
    set $etp_list_i = 0
    while ($etp_list_p != $etp_nil) && \
          ($etp_list_i < $etp_max_string_length) && \
          $etp_list_printable
      if ($etp_list_p & 0x3) == 0x1
        # Cons pointer
        set $etp_list_n = ((Eterm*)($etp_list_p & ~0x3))[0]
        if ($etp_list_n & 0xF) == 0xF
          etp-ct-printable-1 ($etp_list_n>>4)
          if $etp_ct_printable
            # Printable
            set $etp_list_p = ((Eterm*)($etp_list_p & ~0x3))[1]
            set $etp_list_i++
          else
            set $etp_list_printable = 0
          end
        else
          set $etp_list_printable = 0
        end
      else
        set $etp_list_printable = 0
      end
    end
    #
    if $etp_list_printable
  	# Print printable string
  	printf "\""
      set $etp_list_p = ($arg0)
      set $etp_list_i = 0
      while $etp_list_p != $etp_nil
        set $etp_list_n = ((Eterm*)($etp_list_p & ~0x3))[0]
        etp-char-1 ($etp_list_n>>4) '"'
        set $etp_list_p = ((Eterm*)($etp_list_p & ~0x3))[1]
        set $etp_list_i++
        if $etp_list_p == $etp_nil
          printf "\""
        else
          if $etp_list_i >= $etp_max_string_length
            set $etp_list_p = $etp_nil
            printf "\"++[...]"
          else
            if $etp_chart
              etp-chart-entry-1 ($arg0) (($arg1)+$etp_list_i) 2
            end
          end
        end
      end
    end
  end
end

define etp-list-2
# Args: Eterm cons_cell, int depth
#
# Reentrant
#
  if (($arg0) & 0x3) != 0x1
    printf "#NotCons<%#x>", ($arg0)
  else
    # Cons pointer
    if ($arg1) >= $etp_max_depth
      printf "...]"
    else
      etp-1 (((Eterm*)(($arg0)&~0x3))[0]) (($arg1)+1)
      if ((Eterm*)(($arg0) & ~0x3))[1] == $etp_nil
        # Tail is []
        printf "]"
      else
        if $etp_chart
          etp-chart-entry-1 ($arg0) ($arg1) 2
        end
        if (((Eterm*)(($arg0)&~0x3))[1]&0x3) == 0x1
          # Tail is cons cell
          printf ","
          etp-list-2 (((Eterm*)(($arg0)&~0x3))[1]) (($arg1)+1)
        else
          # Tail is other term
          printf "|"
          etp-1 (((Eterm*)(($arg0)&~0x3))[1]) (($arg1)+1)
          printf "]"
        end
      end
    end
  end
end

define etpf-cons
# Args: Eterm
#
# Reentrant capable
#
  if ((Eterm)($arg0) & 0x3) != 0x1
    printf "#NotCons<%#x>", ($arg0)
  else
    # Cons pointer
    set $etp_flat = 1
    printf "["
    etp-1 (((Eterm*)((Eterm)($arg0)&~0x3))[0])
    printf "|"
    etp-1 (((Eterm*)((Eterm)($arg0)&~0x3))[1])
    printf "]\n"
    set $etp_flat = 0
  end
end

document etpf-cons
%---------------------------------------------------------------------------
% etpf-cons Eterm
% 
% Takes a Cons ptr and prints the Car and Cdr cells with etpf (flat).
%---------------------------------------------------------------------------
end



define etp-boxed-1
# Args: Eterm, int depth
#
# Reentrant
#
  if (($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", ($arg0)
  else
    if (((Eterm*)(($arg0) & ~0x3))[0] & 0x3) != 0x0
      if $etp_chart
        etp-chart-entry-1 (($arg0)&~0x3) ($arg1) 1
      end
      printf "#BoxedError<%#x>", ($arg0)
    else
      if $etp_chart
        etp-chart-entry-1 (($arg0)&~0x3) ($arg1) \
                          ((((Eterm*)(($arg0)&~0x3))[0]>>6)+1)
      end
      if (((Eterm*)(($arg0) & ~0x3))[0] & 0x3f) == 0x0
        printf "{"
        etp-array-1 ((Eterm*)(($arg0)&~0x3)) ($arg1) ($arg1) \
                    1 ((((Eterm*)(($arg0)&~0x3))[0]>>6)+1) '}'
      else
        etp-boxed-immediate-1 ($arg0)
      end
    end
  end
end

define etp-boxed-immediate-1
# Args: Eterm, int depth
#
# Non-reentrant
#
  if (($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", ($arg0)
  else
    if (((Eterm*)(($arg0) & ~0x3))[0] & 0x3) != 0x0
      printf "#BoxedError<%#x>", ($arg0)
    else
      set $etp_boxed_immediate_p = (Eterm*)(($arg0) & ~0x3)
      set $etp_boxed_immediate_h = ($etp_boxed_immediate_p[0] >> 2) & 0xF
      if $etp_boxed_immediate_h == 0xC
        etp-extpid-1 ($arg0)
      else
        if $etp_boxed_immediate_h == 0xD
          etp-extport-1 ($arg0)
        else
          if ($etp_boxed_immediate_h == 0x2) || \
             ($etp_boxed_immediate_h == 0x3)
            etp-bignum-1 ($arg0)
          else
            if ($etp_boxed_immediate_h == 0x6)
              etp-float-1 ($arg0)
            else
              if ($etp_boxed_immediate_h == 0x4)
                etp-ref-1 ($arg0)
              else
                if ($etp_boxed_immediate_h == 0xE)
                  etp-extref-1 ($arg0)
                else
                  # Hexdump the rest
                  if ($etp_boxed_immediate_h == 0x5)
                    printf "#Fun<"
                  else
                    if ($etp_boxed_immediate_h == 0x8)
                      printf "#RefcBinary<"
                    else
                    if ($etp_boxed_immediate_h == 0x9)
                      printf "#HeapBinary<"
                    else
                    if ($etp_boxed_immediate_h == 0xA)
                      printf "#SubBinary<"
                    else
                      printf "#Header%X<", $etp_boxed_immediate_h
                    end
		  end
		  end
                  end
                  set $etp_boxed_immediate_arity = $etp_boxed_immediate_p[0]>>6
                  while $etp_boxed_immediate_arity > 0
                    set $etp_boxed_immediate_p++
                    if $etp_boxed_immediate_arity > 1
                      printf "%#x,", *$etp_boxed_immediate_p
                    else
                      printf "%#x", *$etp_boxed_immediate_p
        	      if ($etp_boxed_immediate_h == 0xA)
                        set $etp_boxed_immediate_p++
		    	printf ":%#x", *$etp_boxed_immediate_p
		      end
		      printf ">"
                    end
                    set $etp_boxed_immediate_arity--
                  end
                  # End of hexdump
                end
              end
            end
          end
        end
      end
    end
  end
end

define etpf-boxed
# Args: Eterm
#
# Non-reentrant
#
  set $etp_flat = 1
  etp-boxed-1 ((Eterm)($arg0)) 0
  set $etp_flat = 0
  printf ".\n"
end

document etpf-boxed
%---------------------------------------------------------------------------
% etpf-boxed Eterm
% 
% Take a Boxed ptr and print the contents in one level using etpf (flat).
%---------------------------------------------------------------------------
end



define etp-array-1
# Args: Eterm* p, int depth, int width, int pos, int size, int end_char
#
# Reentrant
#
  if ($arg3) < ($arg4)
    if (($arg1) < $etp_max_depth) && (($arg2) < $etp_max_depth)
      etp-1 (($arg0)[($arg3)]) (($arg1)+1)
      if (($arg3) + 1) != ($arg4)
        printf ","
      end
      etp-array-1 ($arg0) ($arg1) (($arg2)+1) (($arg3)+1) ($arg4) ($arg5)
    else
      printf "...%c", ($arg5)
    end
  else
    printf "%c", ($arg5)
  end
end



#define etpa-1
## Args: Eterm, int depth, int index, int arity
##
## Reentrant
##
#  if ($arg1) >= $etp_max_depth+$etp_max_string_length
#    printf "%% Max depth for term %d\n", $etp_chart_id
#  else
#    if ($arg2) < ($arg3)
#      etp-1 (((Eterm*)(($arg0)&~0x3))[$arg2]) (($arg1)+1)
#      etpa-1 ($arg0) (($arg1)+1) (($arg2)+1) ($arg3)
#    end
#  end
#end

############################################################################
# Commands for non-nested terms. Recursion leaves. Some call other leaves.
#

define etp-immediate-1
# Args: Eterm
#
# Reentrant capable
#
  if (($arg0) & 0x3) != 0x3
    printf "#NotImmediate<%#x>", ($arg0)
  else
    if (($arg0) & 0xF) == 0x3 
      etp-pid-1 ($arg0)
    else
      if (($arg0) & 0xF) == 0x7
        etp-port-1 ($arg0)
      else
        if (($arg0) & 0xF) == 0xf
          # Fixnum
          printf "%ld", (long)((Sint)($arg0)>>4)
        else
          # Immediate2  - 0xB
          if (($arg0) & 0x3f) == 0x0b
            etp-atom-1 ($arg0)
          else
            if (($arg0) & 0x3f) == 0x1b
              printf "#Catch<%d>", ($arg0)>>6
            else
              if (($arg0) == $etp_nil)
                printf "[]"
              else
                printf "#UnknownImmediate<%#x>", ($arg0)
              end
            end
          end
        end
      end
    end
  end
end



define etp-atom-1
# Args: Eterm atom
#
# Non-reentrant
#
  if ((Eterm)($arg0) & 0x3f) != 0xb
    printf "#NotAtom<%#x>", ($arg0)
  else
    set $etp_atom_1_ap = (Atom*)erts_atom_table.seg_table[(Eterm)($arg0)>>16][((Eterm)($arg0)>>6)&0x3FF]
    set $etp_atom_1_i = ($etp_atom_1_ap)->len
    set $etp_atom_1_p = ($etp_atom_1_ap)->name
    set $etp_atom_1_quote = 1
    # Check if atom has to be quoted
    if ($etp_atom_1_i > 0)
      etp-ct-atom-1 (*$etp_atom_1_p)
      if $etp_ct_atom
        # Atom start character
        set $etp_atom_1_p++
        set $etp_atom_1_i--
        set $etp_atom_1_quote = 0
      else
        set $etp_atom_1_i = 0
      end
    end
    while $etp_atom_1_i > 0
      etp-ct-name-1 (*$etp_atom_1_p)
      if $etp_ct_name
        # Name character
        set $etp_atom_1_p++
        set $etp_atom_1_i--
      else
        set $etp_atom_1_quote = 1
        set $etp_atom_1_i = 0
      end
    end
    # Print the atom
    if $etp_atom_1_quote
      printf "'"
    end
    set $etp_atom_1_i = ($etp_atom_1_ap)->len
    set $etp_atom_1_p = ($etp_atom_1_ap)->name
    while $etp_atom_1_i > 0
        etp-char-1 (*$etp_atom_1_p) '\''
	set $etp_atom_1_p++
        set $etp_atom_1_i--
    end
    if $etp_atom_1_quote
      printf "'"
    end
  end
end



define etp-char-1
# Args: int char, int quote_char
#
# Non-reentrant
#
  if (($arg0) < 0) || (0377 < ($arg0))
    printf "#NotChar<%#x>", ($arg0)
  else
    if ($arg0) == ($arg1)
      printf "\\%c", ($arg0)
    else
      etp-ct-printable-1 ($arg0)
      if $etp_ct_printable
        if $etp_ct_printable < 0
          printf "%c", ($arg0)
        else
          printf "\\%c", $etp_ct_printable
        end
      else
        printf "\\%03o", ($arg0)
      end
    end
  end
end

define etp-ct-printable-1
# Args: int
#
# Determines if integer is a printable character
#
# Non-reentrant
# Returns: $etp_ct_printable
#          escape alias char, or -1 if no escape alias
  if ($arg0) == 010
    set $etp_ct_printable = 'b'
  else
    if ($arg0) == 011
      set $etp_ct_printable = 't'
    else
      if ($arg0) == 012
        set $etp_ct_printable = 'n'
      else
        if ($arg0) == 013
          set $etp_ct_printable = 'v'
        else
          if ($arg0) == 014
            set $etp_ct_printable = 'f'
          else
            if ($arg0) == 033
              set $etp_ct_printable = 'e'
            else
              if ((040 <= ($arg0)) && (($arg0) <= 0176)) || \
                 ((0240 <= ($arg0)) && (($arg0) <= 0377))
                # Other printable character
                set $etp_ct_printable = -1
              else
                set $etp_ct_printable = 0
              end
            end
          end
        end
      end
    end
  end
end

define etp-ct-atom-1
# Args: int
#
# Determines if integer is a atom first character
#
# Non-reentrant
# Returns: $etp_ct_atom
  if ((0141 <= ($arg0)) && (($arg0) <= 0172)) || \
     ((0337 <= ($arg0)) && (($arg0) != 0367) && (($arg0) <= 0377))
    # Atom start character
    set $etp_ct_atom = 1
  else
    set $etp_ct_atom = 0
  end
end

define etp-ct-variable-1
# Args: int
#
# Determines if integer is a variable first character
#
# Non-reentrant
# Returns: $etp_ct_variable
  if ((056 == ($arg0)) || \
      (0101 <= ($arg0)) && (($arg0) <= 0132)) || \
      (0137 == ($arg0)) || \
      ((0300 <= ($arg0)) && (($arg0) != 0327) && (($arg0) <= 0336))
    # Variable start character
    set $etp_ct_variable = 1
  else
    set $etp_ct_variable = 0
  end
end

define etp-ct-name-1
# Args: int
#
# Determines if integer is a name character, 
# i.e non-first atom or variable character.
#
# Non-reentrant
# Returns: $etp_ct_variable
  if (($arg0) == 0100 || \
      (060 <= ($arg0)) && (($arg0) <= 071))
    set $etp_ct_name = 1
  else
    etp-ct-atom-1 ($arg0)
    if $etp_ct_atom
      set $etp_ct_name = 1
    else
      etp-ct-variable-1 ($arg0)
      set $etp_ct_name = $etp_ct_variable
    end
  end
end



define etp-pid-1
# Args: Eterm pid
#
# Non-reentrant
#
  set $etp_pid_1 = (Eterm)($arg0)
  if ($etp_pid_1 & 0xF) == 0x3
    # Internal pid
    printf "<0.%u.%u>", (unsigned) ($etp_pid_1>>4)&0x7fff, \
                        (unsigned) ($etp_pid_1>>19)&0x1fff
  else
    printf "#NotPid<%#x>", ($arg0)
  end
end

define etp-extpid-1
# Args: Eterm extpid
#
# Non-reentrant
#
  if ((Eterm)($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", (Eterm)($arg0)
  else
    set $etp_extpid_1_p = (ExternalThing*)((Eterm)($arg0) & ~0x3)
    if ($etp_extpid_1_p->header & 0x3f) != 0x30
      printf "#NotExternalPid<%#x>", $etp_extpid_1_p->header
    else
      ## External pid
      set $etp_extpid_1_number = $etp_extpid_1_p->data.ui[0]&0x7fff
      set $etp_extpid_1_serial = ($etp_extpid_1_p->data.ui[0]>>15)&0x1fff
      set $etp_extpid_1_np = $etp_extpid_1_p->node
      set $etp_extpid_1_creation = $etp_extpid_1_np->creation
      set $etp_extpid_1_dep = $etp_extpid_1_np->dist_entry
      set $etp_extpid_1_node = $etp_extpid_1_np->sysname
      if ($etp_extpid_1_node & 0x3f) != 0xb
        # Should be an atom
        printf "#ExternalPidError<%#x>", ($arg0)
      else
        if $etp_extpid_1_dep == erts_this_dist_entry
          printf "<0:"
        else
          printf "<%u:", $etp_extpid_1_node>>6
        end
        etp-atom-1 ($etp_extpid_1_node)
        printf "/%u.%u.%u>", $etp_extpid_1_creation, \
               $etp_extpid_1_number, $etp_extpid_1_serial
      end
    end
  end
end



define etp-port-1
# Args: Eterm port
#
# Non-reentrant
#
  set $etp_port_1 = (Eterm)($arg0)
  if ($etp_port_1 & 0xF) == 0x7
    # Internal port
    printf "#Port<0.%u>", (unsigned) ($etp_port_1>>4)&0x3ffff
  else
    printf "#NotPort<%#x>", ($arg0)
  end
end

define etp-extport-1
# Args: Eterm extport
#
# Non-reentrant
#
  if ((Eterm)($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", (Eterm)($arg0)
  else
    set $etp_extport_1_p = (ExternalThing*)((Eterm)($arg0) & ~0x3)
    if ($etp_extport_1_p->header & 0x3F) != 0x34
      printf "#NotExternalPort<%#x>", $etp_extport_1->header
    else
      ## External port
      set $etp_extport_1_number = $etp_extport_1_p->data.ui[0]&0x3ffff
      set $etp_extport_1_np = $etp_extport_1_p->node
      set $etp_extport_1_creation = $etp_extport_1_np->creation
      set $etp_extport_1_dep = $etp_extport_1_np->dist_entry
      set $etp_extport_1_node = $etp_extport_1_np->sysname
      if ($etp_extport_1_node & 0x3f) != 0xb
        # Should be an atom
        printf "#ExternalPortError<%#x>", ($arg0)
      else
        if $etp_extport_1_dep == erts_this_dist_entry
          printf "#Port<0:"
        else
          printf "#Port<%u:", $etp_extport_1_node>>6
        end
        etp-atom-1 ($etp_extport_1_node)
        printf "/%u.%u>", $etp_extport_1_creation, $etp_extport_1_number
      end
    end
  end
end



define etp-bignum-1
# Args: Eterm bignum
#
# Non-reentrant
#
  if ((Eterm)($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", (Eterm)($arg0)
  else
    set $etp_bignum_1_p = (Eterm*)((Eterm)($arg0) & ~0x3)
    if ($etp_bignum_1_p[0] & 0x3b) != 0x08
      printf "#NotBignum<%#x>", $etp_bignum_1_p[0]
    else
      set $etp_bignum_1_i = ($etp_bignum_1_p[0] >> 6)
      if $etp_bignum_1_i < 1
        printf "#BignumError<%#x>", (Eterm)($arg0)
      else
        if $etp_bignum_1_p[0] & 0x04
          printf "-"
        end
        set $etp_bignum_1_p = (ErtsDigit *)($etp_bignum_1_p + 1)
        printf "16#"
        if $etp_arch64
          while $etp_bignum_1_i > 0
            set $etp_bignum_1_i--
            printf "%016lx", $etp_bignum_1_p[$etp_bignum_1_i]
          end
        else
          while $etp_bignum_1_i > 0
            set $etp_bignum_1_i--
            printf "%08x", $etp_bignum_1_p[$etp_bignum_1_i]
          end
        end
      end
    end
  end
end



define etp-float-1
# Args: Eterm float
#
# Non-reentrant
#
  if ((Eterm)($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", (Eterm)($arg0)
  else
    set $etp_float_1_p = (Eterm*)((Eterm)($arg0) & ~0x3)
    if ($etp_float_1_p[0] & 0x3f) != 0x18
      printf "#NotFloat<%#x>", $etp_float_1_p[0]
    else
      printf "%f", *(double*)($etp_float_1_p+1)
    end
  end
end



define etp-ref-1
# Args: Eterm ref
#
# Non-reentrant
#
  if ((Eterm)($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", (Eterm)($arg0)
  else
    set $etp_ref_1_p = (RefThing *)((Eterm)($arg0) & ~0x3)
    if ($etp_ref_1_p->header & 0x3b) != 0x10
      printf "#NotRef<%#x>", $etp_ref_1_p->header
    else
      set $etp_ref_1_nump = (Uint32 *) 0
      set $etp_ref_1_error = 0
      if ($etp_ref_1_p->header >> 6) == 0
        set $etp_ref_1_error = 1
      else
        if $etp_arch64
          set $etp_ref_1_i = (int) $etp_ref_1_p->data.ui32[0]
          if (($etp_ref_1_i + 1) > (2 * ($etp_ref_1_p->header >> 6)))
            set $etp_ref_1_error = 1
          else
            set $etp_ref_1_nump = &$etp_ref_1_p->data.ui32[1]
          end
        else
          set $etp_ref_1_i = (int) ($etp_ref_1_p->header >> 6)
          set $etp_ref_1_nump = &$etp_ref_1_p->data.ui32[0]
        end
      end
      if $etp_ref_1_error
        printf "#InternalRefError<%#x>", ($arg0)
      else
        printf "#Ref<0"
        set $etp_ref_1_i--
        while $etp_ref_1_i >= 0
          printf ".%u", (unsigned) $etp_ref_1_nump[$etp_ref_1_i]
          set $etp_ref_1_i--
        end
        printf ">"
      end
    end
  end
end



define etp-extref-1
# Args: Eterm extref
#
# Non-reentrant
#
  if ((Eterm)($arg0) & 0x3) != 0x2
    printf "#NotBoxed<%#x>", (Eterm)($arg0)
  else
    set $etp_extref_1_p = (ExternalThing*)((Eterm)($arg0) & ~0x3)
    if ($etp_extref_1_p->header & 0x3F) != 0x38
      printf "#NotExternalRef<%#x>", $etp_extref_1->header
    else
      ## External ref
      set $etp_extref_1_nump = (Uint32 *) 0
      set $etp_extref_1_error = 0
      set $etp_extref_1_i = (int) ($etp_extref_1_p->header >> 6)
      set $etp_extref_1_np = $etp_extref_1_p->node
      set $etp_extref_1_creation = $etp_extref_1_np->creation
      set $etp_extref_1_dep = $etp_extref_1_np->dist_entry
      set $etp_extref_1_node = $etp_extref_1_np->sysname
      if ($etp_extref_1_node & 0x3f) != 0xb || $etp_extref_1_i < 3
        # Node should be an atom
	set $etp_extref_1_error = 1
      else
        ## $etp_extref_1_i now equals data (Uint) words
	set $etp_extref_1_i -= 2
        if $etp_arch64
          if ((((int) $etp_extref_1_p->data.ui32[0]) + 1) \
              > (2 * $etp_extref_1_i))
	    set $etp_extref_1_error = 1
          else
            set $etp_extref_1_nump = &$etp_extref_1_p->data.ui32[1]
            set $etp_extref_1_i = (int) $etp_extref_1_p->data.ui32[0]
          end
        else
            set $etp_extref_1_nump = &$etp_extref_1_p->data.ui32[0]
        end
        ## $etp_extref_1_i now equals no of ref num (Uint32) words
        if !$etp_extref_1_error
          if $etp_extref_1_dep == erts_this_dist_entry
            printf "#Ref<0:"
          else
            printf "#Ref<%u:", $etp_extref_1_node>>6
          end
          etp-atom-1 ($etp_extref_1_node)
          printf "/%u", $etp_extref_1_creation
        end
      end
      if $etp_extref_1_error
        printf "#ExternalRefError<%#x>", ($arg0)
      else
        set $etp_extref_1_i--
        while $etp_extref_1_i >= 0
          printf ".%u", (unsigned) $etp_extref_1_nump[$etp_extref_1_i]
          set $etp_extref_1_i--
        end
        printf ">"
      end
    end
  end
end



define etp-mfa-1
# Args: Eterm*, int offset
#
# Reentrant
#
  printf "<"
  etp-atom-1 (((Eterm*)($arg0))[0])
  printf ":"
  etp-atom-1 (((Eterm*)($arg0))[1])
  printf "/%d", ((Eterm*)($arg0))[2]
  if ($arg1) > 0
    printf "+%#x>", ($arg1)
  else
    printf ">"
  end	
end

define etp-mfa
# Args: Eterm*
#
# Reentrant capable
#
  etp-mfa-1 ($arg0) 0
  printf ".\n"
end

document etp-mfa
%---------------------------------------------------------------------------
% etp-mfa Eterm*
% 
% Take an Eterm* to an MFA function name entry and print it.
% These can be found e.g in the process structure;
% process_tab[i]->current and process_tab[i]->initial.
%---------------------------------------------------------------------------
end



define etp-cp-1
# Args: Eterm cp
#
# Non-reentrant
#
  set $etp_cp = (Eterm)($arg0)
  set $etp_ranges = &r[(int)the_active_code_index]
  set $etp_cp_low = $etp_ranges->modules
  set $etp_cp_high = $etp_cp_low + $etp_ranges->n
  set $etp_cp_mid = (Range*)$etp_ranges->mid
  set $etp_cp_p = 0
  #
  while $etp_cp_low < $etp_cp_high
    if $etp_cp < $etp_cp_mid->start
      set $etp_cp_high = $etp_cp_mid
    else
      if $etp_cp > (BeamInstr*)$etp_cp_mid->end
        set $etp_cp_low = $etp_cp_mid + 1
      else
        set $etp_cp_p = $etp_cp_low = $etp_cp_high = $etp_cp_mid
      end
    end
    set $etp_cp_mid = $etp_cp_low + ($etp_cp_high-$etp_cp_low)/2
  end
  if $etp_cp_p
    set $etp_cp_low = (Eterm**)($etp_cp_p->start + 8)
    set $etp_cp_high = $etp_cp_low +$etp_cp_p->start[0]
    set $etp_cp_p = 0
    while $etp_cp_low < $etp_cp_high
      set $etp_cp_mid = $etp_cp_low + ($etp_cp_high-$etp_cp_low)/2
      if $etp_cp < $etp_cp_mid[0]
        set $etp_cp_high = $etp_cp_mid
      else
        if $etp_cp < $etp_cp_mid[1]
          set $etp_cp_p = $etp_cp_mid[0]+2
          set $etp_cp_low = $etp_cp_high = $etp_cp_mid
        else
          set $etp_cp_low = $etp_cp_mid + 1
        end
      end
    end
  end
  if $etp_cp_p
    printf "#Cp"
    etp-mfa-1 ($etp_cp_p) ($etp_cp-((Eterm)($etp_cp_p-2)))
  else
    if $etp_cp == beam_apply+1
      printf "#Cp<terminate process normally>"
    else
      if *(Eterm*)($etp_cp) == beam_return_trace[0]
        if ($etp_cp) == beam_exception_trace
	  printf "#Cp<exception trace>"
        else
	  printf "#Cp<return trace>"
	end
      else
        if *(Eterm*)($etp_cp) == beam_return_to_trace[0]
	  printf "#Cp<return to trace>"
	else
          printf "#Cp<%#x>", $etp_cp
	end
      end
    end
  end
end

define etp-cp
# Args: Eterm cp
#
# Reentrant capable
#
  etp-cp-1 ($arg0)
  printf ".\n"
end

document etp-cp
%---------------------------------------------------------------------------
% etp-cp Eterm
% 
% Take a code continuation pointer and print 
% module, function, arity and offset. 
% 
% Code continuation pointers can be found in the process structure e.g
% process_tab[i]->cp and process_tab[i]->i, the second is the
% program counter, which is the same thing as a continuation pointer.
%---------------------------------------------------------------------------
end

############################################################################
# Commands for special term bunches.
#

define etp-msgq
# Args: ErlMessageQueue*
#
# Non-reentrant
#
  set $etp_msgq = ($arg0)
  set $etp_msgq_p = $etp_msgq->first
  set $etp_msgq_i = $etp_msgq->len
  set $etp_msgq_prev = $etp_msgq->last
  printf "%% Message queue (%d):", $etp_msgq_i
  if ($etp_msgq_i > 0) && $etp_msgq_p
    printf "\n["
  else
    printf "\n"
  end
  while ($etp_msgq_i > 0) && $etp_msgq_p
    set $etp_msgq_i--
    set $etp_msgq_next = $etp_msgq_p->next
    # Msg
    etp-1 ($etp_msgq_p->m[0]) 0
    if ($etp_msgq_i > 0) && $etp_msgq_next
      printf ", %% "
    else
      printf "]. %% "
    end
    # Seq_trace token
    etp-1 ($etp_msgq_p->m[1]) 0
    if $etp_msgq_p == $etp_msgq->save
      printf ", <=\n"
    else
      printf "\n"
    end
    if ($etp_msgq_i > 0) && $etp_msgq_next
      printf " "
    end
    #
    set $etp_msgq_prev = $etp_msgq_p
    set $etp_msgq_p = $etp_msgq_next
  end
  if $etp_msgq_i != 0
    printf "#MsgQShort<%d>\n", $etp_msgq_i
  end
  if $etp_msgq_p != 0
    printf "#MsgQLong<%#lx%p>\n", (unsigned long)$etp_msgq_p
  end
  if $etp_msgq_prev != $etp_msgq->last
    printf "#MsgQEndError<%#lx%p>\n", (unsigned long)$etp_msgq_prev
  end
end

document etp-msgq
%---------------------------------------------------------------------------
% etp-msgq ErlMessageQueue*
% 
% Take an ErlMessageQueue* and print the contents of the message queue. 
% Sequential trace tokens are included in comments and 
% the current match position in the queue is marked '<='.
% 
% A process's message queue is process_tab[i]->msg.
%---------------------------------------------------------------------------
end



define etpf-msgq
# Args: Process*
#
# Non-reentrant
#
  set $etp_flat = 1
  etp-msgq ($arg0)
  set $etp_flat = 0
end

document etpf-msgq
%---------------------------------------------------------------------------
% etpf-msgq ErlMessageQueue*
% 
% Same as 'etp-msgq' but print the messages using etpf (flat).
%---------------------------------------------------------------------------
end



define etp-stacktrace
# Args: Process*
#
# Non-reentrant
#
  set $etp_stacktrace_p = ($arg0)->stop
  set $etp_stacktrace_end = ($arg0)->hend
  printf "%% Stacktrace (%u): ", $etp_stacktrace_end-$etp_stacktrace_p
  etp ($arg0)->cp
  while $etp_stacktrace_p < $etp_stacktrace_end
    if ($etp_stacktrace_p[0] & 0x3) == 0x0
      # Continuation pointer
      etp $etp_stacktrace_p[0]
    end
    set $etp_stacktrace_p++
  end
end

document etp-stacktrace
%---------------------------------------------------------------------------
% etp-stacktrace Process*
% 
% Take an Process* and print a stactrace for the process.
% The stacktrace consists just of the pushed code continuation
% pointers on the stack, the most recently pushed first.
%---------------------------------------------------------------------------
end

define etp-stackdump
# Args: Process*
#
# Non-reentrant
#
  set $etp_stackdump_p = ($arg0)->stop
  set $etp_stackdump_end = ($arg0)->hend
  printf "%% Stackdump (%u): ", $etp_stackdump_end-$etp_stackdump_p
  etp ($arg0)->cp
  while $etp_stackdump_p < $etp_stackdump_end
    etp $etp_stackdump_p[0]
    set $etp_stackdump_p++
  end
end

document etp-stackdump
%---------------------------------------------------------------------------
% etp-stackdump Process*
% 
% Take an Process* and print a stackdump for the process.
% The stackdump consists of all pushed values on the stack.
% All code continuation pointers are preceeded with a line
% of dashes to make the stack frames more visible.
%---------------------------------------------------------------------------
end

define etpf-stackdump
# Args: Process*
#
# Non-reentrant
#
  set $etp_flat = 1
  etp-stackdump ($arg0)
  set $etp_flat = 0
end

document etpf-stackdump
%---------------------------------------------------------------------------
% etpf-stackdump Process*
% 
% Same as etp-stackdump but print the values using etpf (flat).
%---------------------------------------------------------------------------
end



define etp-dictdump
# Args: ProcDict*
#
# Non-reentrant
#
  set $etp_dictdump = ($arg0)
  if $etp_dictdump
    set $etp_dictdump_n = \
      $etp_dictdump->homeSize + $etp_dictdump->splitPosition
    set $etp_dictdump_i = 0
    set $etp_dictdump_written = 0
    if $etp_dictdump_n > $etp_dictdump->size
      set $etp_dictdump_n = $etp_dictdump->size
    end
    set $etp_dictdump_cnt = $etp_dictdump->numElements
    printf "%% Dictionary (%d):\n[", $etp_dictdump_cnt
    while $etp_dictdump_i < $etp_dictdump_n && \
          $etp_dictdump_cnt > 0
      set $etp_dictdump_p = $etp_dictdump->data[$etp_dictdump_i]
      if $etp_dictdump_p != $etp_nil
        if ((Eterm)$etp_dictdump_p & 0x3) == 0x2
          # Boxed
          if $etp_dictdump_written
            printf ",\n "
          else
            set $etp_dictdump_written = 1
          end
          etp-1 $etp_dictdump_p 0
          set $etp_dictdump_cnt--
        else
          while ((Eterm)$etp_dictdump_p & 0x3) == 0x1 && \
                $etp_dictdump_cnt > 0
            # Cons ptr
            if $etp_dictdump_written
              printf ",\n "
            else
              set $etp_dictdump_written = 1
            end
            etp-1 (((Eterm*)((Eterm)$etp_dictdump_p&~0x3))[0]) 0
            set $etp_dictdump_cnt--
            set $etp_dictdump_p = ((Eterm*)((Eterm)$etp_dictdump_p & ~0x3))[1]
          end
          if $etp_dictdump_p != $etp_nil
            printf "#DictSlotError<%d>:", $etp_dictdump_i
	    set $etp_dictdump_flat = $etp_flat
	    set $etp_flat = 1
            etp-1 ((Eterm)$etp_dictdump_p) 0
	    set $etp_flat = $etp_dictdump_flat
          end
        end
      end
      set $etp_dictdump_i++
    end
    if $etp_dictdump_cnt != 0
      printf "#DictCntError<%d>, ", $etp_dictdump_cnt
    end
  else
    printf "%% Dictionary (0):\n["
  end
  printf "].\n"
end

document etp-dictdump
%---------------------------------------------------------------------------
% etp-dictdump ErlProcDict*
% 
% Take an ErlProcDict* and print all entries in the process dictionary.
%---------------------------------------------------------------------------
end

define etpf-dictdump
# Args: ErlProcDict*
#
# Non-reentrant
#
  set $etp_flat = 1
  etp-dictdump ($arg0)
  set $etp_flat = 0
end

document etpf-dictdump
%---------------------------------------------------------------------------
% etpf-dictdump ErlProcDict*
% 
% Same as etp-dictdump but print the values using etpf (flat).
%---------------------------------------------------------------------------
end



define etp-offheapdump
# Args: ( ExternalThing* | ProcBin* | ErlFunThing* )
#
# Non-reentrant
#
  set $etp_offheapdump_p = ($arg0)
  set $etp_offheapdump_i = 0
  set $etp_offheapdump_
  printf "%% Offheap dump:\n["
  while ($etp_offheapdump_p != 0) && ($etp_offheapdump_i < $etp_max_depth)
    if ((Eterm)$etp_offheapdump_p & 0x3) == 0x0
      if $etp_offheapdump_i > 0
        printf ",\n "
      end
      etp-1 ((Eterm)$etp_offheapdump_p|0x2) 0
      set $etp_offheapdump_p = $etp_offheapdump_p->next
      set $etp_offheapdump_i++
    else
      printf "#TaggedPtr<%#x>", $etp_offheapdump_p
      set $etp_offheapdump_p = 0
    end
  end
  printf "].\n"
end

document etp-offheapdump
%---------------------------------------------------------------------------
% etp-offheapdump ( ExternalThing* | ProcBin* | ErlFunThing* )
% 
% Take an pointer to a linked list and print the terms in the list
% up to the max depth.
%---------------------------------------------------------------------------
end

define etpf-offheapdump
# Args: ( ExternalThing* | ProcBin* | ErlFunThing* )
#
# Non-reentrant
#
  set $etp_flat = 1
  etp-offheapdump ($arg0)
  set $etp_flat = 0
end

document etpf-offheapdump
%---------------------------------------------------------------------------
% etpf-offheapdump ( ExternalThing* | ProcBin* | ErlFunThing* )
% 
% Same as etp-offheapdump but print the values using etpf (flat).
%---------------------------------------------------------------------------
end

define etp-print-procs
# Args: Eterm
#
# Non-reentrant
#
  etp-print-procs-1
end

define etp-print-procs-1
# Args: Eterm*
#
# Non-reentrant
#
  set $etp_print_procs_q = erts_max_processes / 10
  set $etp_print_procs_r = erts_max_processes % 10
  set $etp_print_procs_t = 10
  set $etp_print_procs_m = $etp_print_procs_q
  if $etp_print_procs_r > 0
    set $etp_print_procs_m++
    set $etp_print_procs_r--
  end
  set $etp_print_procs_i = 0
  set $etp_print_procs_found = 0
  while $etp_print_procs_i < erts_max_processes
    if process_tab[$etp_print_procs_i]
      printf "%d: ", $etp_print_procs_i
      etp-1 process_tab[$etp_print_procs_i]->id
      printf " "
      etp-1 ((Eterm)(process_tab[$etp_print_procs_i]->i))
      printf " heap=%d/%d(%d)", process_tab[$etp_print_procs_i]->htop - process_tab[$etp_print_procs_i]->heap, \
	        process_tab[$etp_print_procs_i]->hend - process_tab[$etp_print_procs_i]->heap, \
		process_tab[$etp_print_procs_i]->hend - process_tab[$etp_print_procs_i]->stop
      printf " old=%d/%d ", process_tab[$etp_print_procs_i]->old_htop - process_tab[$etp_print_procs_i]->old_heap, \
                process_tab[$etp_print_procs_i]->old_hend - process_tab[$etp_print_procs_i]->old_heap
      printf " mbuf_sz=%d ", process_tab[$etp_print_procs_i]->mbuf_sz
      printf " min=%d ", process_tab[$etp_print_procs_i]->min_heap_size
      printf " flags=%x ", process_tab[$etp_print_procs_i]->flags
      printf " msgs=%d ", process_tab[$etp_print_procs_i]->msg.len
      printf "\n"
    end
    set $etp_print_procs_i++
    if $etp_print_procs_i > $etp_print_procs_m
      printf "%% %d%%...\n", $etp_print_procs_t
      set $etp_print_procs_t += 10
      set $etp_print_procs_m += $etp_print_procs_q
      if $etp_print_procs_r > 0
        set $etp_print_procs_m++
        set $etp_print_procs_r--
      end
    end
  end
  printf "%% 100%%.\n"
end

document etp-print-procs
%---------------------------------------------------------------------------
% etp-print-procs Eterm
% 
% Print some information about ALL processes.
%---------------------------------------------------------------------------
end


define etp-search-heaps
# Args: Eterm
#
# Non-reentrant
#
  printf "%% Search all (<%u) process heaps for ", erts_max_processes
  set $etp_flat = 1
  etp-1 ($arg0) 0
  set $etp_flat = 0
  printf ":...\n"
  etp-search-heaps-1 ((Eterm*)((Eterm)($arg0)&~3))
end

define etp-search-heaps-1
# Args: Eterm*
#
# Non-reentrant
#
  set $etp_search_heaps_q = erts_max_processes / 10
  set $etp_search_heaps_r = erts_max_processes % 10
  set $etp_search_heaps_t = 10
  set $etp_search_heaps_m = $etp_search_heaps_q
  if $etp_search_heaps_r > 0
    set $etp_search_heaps_m++
    set $etp_search_heaps_r--
  end
  set $etp_search_heaps_i = 0
  set $etp_search_heaps_found = 0
  while $etp_search_heaps_i < erts_max_processes
    if process_tab[$etp_search_heaps_i]
      if (process_tab[$etp_search_heaps_i]->heap <= ($arg0)) && \
         (($arg0) < process_tab[$etp_search_heaps_i]->hend)
        printf "process_tab[%d]->heap+%d\n", $etp_search_heaps_i, \
               ($arg0)-process_tab[$etp_search_heaps_i]->heap
      end
      if (process_tab[$etp_search_heaps_i]->old_heap <= ($arg0)) && \
         (($arg0) <= process_tab[$etp_search_heaps_i]->old_hend)
        printf "process_tab[%d]->old_heap+%d\n", $etp_search_heaps_i, \
               ($arg0)-process_tab[$etp_search_heaps_i]->old_heap
      end
      set $etp_search_heaps_cnt = 0
      set $etp_search_heaps_p = process_tab[$etp_search_heaps_i]->mbuf
      while $etp_search_heaps_p && ($etp_search_heaps_cnt < $etp_max_depth)
        set $etp_search_heaps_cnt++
        if (&($etp_search_heaps_p->mem) <= ($arg0)) && \
           (($arg0) < &($etp_search_heaps_p->mem)+$etp_search_heaps_p->size)
          printf "process_tab[%d]->mbuf(%d)+%d\n", \
                 $etp_search_heaps_i, $etp_search_heaps_cnt, \
                 ($arg0)-&($etp_search_heaps_p->mem)
        end
        set $etp_search_heaps_p = $etp_search_heaps_p->next
      end
      if $etp_search_heaps_p
        printf "process_tab[%d] %% Too many HeapFragments\n", \
               $etp_search_heaps_i
      end
    end
    set $etp_search_heaps_i++
    if $etp_search_heaps_i > $etp_search_heaps_m
      printf "%% %d%%...\n", $etp_search_heaps_t
      set $etp_search_heaps_t += 10
      set $etp_search_heaps_m += $etp_search_heaps_q
      if $etp_search_heaps_r > 0
        set $etp_search_heaps_m++
        set $etp_search_heaps_r--
      end
    end
  end
  printf "%% 100%%.\n"
end

document etp-search-heaps
%---------------------------------------------------------------------------
% etp-search-heaps Eterm
% 
% Search all process heaps in process_tab[], including the heap fragments
% (process_tab[]->mbuf) for the specified Eterm.
%---------------------------------------------------------------------------
end



define etp-search-alloc
# Args: Eterm
#
# Non-reentrant
#
  printf "%% Search allocated memory blocks for "
  set $etp_flat = 1
  etp-1 ($arg0) 0
  set $etp_flat = 0
  printf ":...\n"
  set $etp_search_alloc_n = sizeof(erts_allctrs) / sizeof(*erts_allctrs)
  set $etp_search_alloc_i = 0
  while $etp_search_alloc_i < $etp_search_alloc_n
    if erts_allctrs[$etp_search_alloc_i].alloc
      set $etp_search_alloc_f = (erts_allctrs+$etp_search_alloc_i)
      while ($etp_search_alloc_f->alloc == debug_alloc) || \
            ($etp_search_alloc_f->alloc == stat_alloc) || \
            ($etp_search_alloc_f->alloc == map_stat_alloc)
        set $etp_search_alloc_f = \
          (ErtsAllocatorFunctions_t*)$etp_search_alloc_f->extra
      end
      if ($etp_search_alloc_f->alloc != erts_sys_alloc) && \
         ($etp_search_alloc_f->alloc != erts_fix_alloc)
        if ($etp_search_alloc_f->alloc == erts_alcu_alloc) || \
           ($etp_search_alloc_f->alloc == erts_alcu_alloc_ts)
          # alcu alloc
          set $etp_search_alloc_e = (Allctr_t*)$etp_search_alloc_f->extra
          # mbc_list
          set $etp_search_alloc_p = $etp_search_alloc_e->mbc_list.first
          set $etp_search_alloc_cnt = 0
          while $etp_search_alloc_p && \
                ($etp_search_alloc_cnt < $etp_max_depth)
            set $etp_search_alloc_cnt++
            if $etp_search_alloc_p <= ($arg0) && \
               ($arg0) < (char*)$etp_search_alloc_p + \
                         ($etp_search_alloc_p->chdr & (Uint)~7)
              printf "erts_allctrs[%d] %% %salloc: mbc_list: %d\n", \
                     $etp_search_alloc_i, $etp_search_alloc_e->name_prefix, \
                     $etp_search_alloc_cnt
            end
            if $etp_search_alloc_p == $etp_search_alloc_e->mbc_list.last
              if $etp_search_alloc_p->next
                printf \
                  "erts_allctrs[%d] %% %salloc: mbc_list.last error %p\n",\
                  $etp_search_alloc_i, $etp_search_alloc_e->name_prefix,\
                  $etp_search_alloc_p
              end
              set $etp_search_alloc_p = 0
            else
              set $etp_search_alloc_p = $etp_search_alloc_p->next
            end
          end
          if $etp_search_alloc_p
            printf "erts_allctrs[%d] %% %salloc: too large mbc_list %p\n", \
                   $ept_search_alloc_i, $etp_search_alloc_e->name_prefix,
                   $ept_search_alloc_p
          end
          # sbc_list
          set $etp_search_alloc_p = $etp_search_alloc_e->sbc_list.first
          set $etp_search_alloc_cnt = 0
          while $etp_search_alloc_p && \
                ($etp_search_alloc_cnt < $etp_max_depth)
            set $etp_search_alloc_cnt++
            if $etp_search_alloc_p <= ($arg0) && \
               ($arg0) < (char*)$etp_search_alloc_p + \
                         ($etp_search_alloc_p->chdr & (Uint)~7)
              printf "erts_allctrs[%d] %% %salloc: sbc_list: %d\n", \
                     $etp_search_alloc_i, $etp_search_alloc_e->name_prefix, \
                     $etp_search_alloc_cnt
            end
            if $etp_search_alloc_p == $etp_search_alloc_e->sbc_list.last
              if $etp_search_alloc_p->next
                printf \
                  "erts_allctrs[%d] %% %salloc: sbc_list.last error %p",\
                  $etp_search_alloc_i, $etp_search_alloc_e->name_prefix,\
                  $etp_search_alloc_p
              end
              set $etp_search_alloc_p = 0
            else
              set $etp_search_alloc_p = $etp_search_alloc_p->next
            end
          end
          if $etp_search_alloc_p
            printf "erts_allctrs[%d] %% %salloc: too large sbc_list %p\n", \
                   $ept_search_alloc_i, $etp_search_alloc_e->name_prefix,
                   $ept_search_alloc_p
          end
        else
          printf "erts_allctrs[%d] %% %s: unknown allocator\n", \
                 $etp_search_alloc_i, erts_alc_a2ad[$etp_search_alloc_i]
        end
      end
    end
    set $etp_search_alloc_i++
  end
end

document etp-search-alloc
%---------------------------------------------------------------------------
% etp-search-heaps Eterm
% 
% Search all internal allocator memory blocks for for the specified Eterm.
%---------------------------------------------------------------------------
end



define etp-overlapped-heaps
# Args: 
#
# Non-reentrant
#
  printf "%% Dumping heap addresses to \"etp-commands.bin\"\n"
  set $etp_overlapped_heaps_q = erts_max_processes / 10
  set $etp_overlapped_heaps_r = erts_max_processes % 10
  set $etp_overlapped_heaps_t = 10
  set $etp_overlapped_heaps_m = $etp_overlapped_heaps_q
  if $etp_overlapped_heaps_r > 0
    set $etp_overlapped_heaps_m++
    set $etp_overlapped_heaps_r--
  end
  set $etp_overlapped_heaps_i = 0
  set $etp_overlapped_heaps_found = 0
  dump binary value etp-commands.bin 'o'
  append binary value etp-commands.bin 'v'
  append binary value etp-commands.bin 'e'
  append binary value etp-commands.bin 'r'
  append binary value etp-commands.bin 'l'
  append binary value etp-commands.bin 'a'
  append binary value etp-commands.bin 'p'
  append binary value etp-commands.bin 'p'
  append binary value etp-commands.bin 'e'
  append binary value etp-commands.bin 'd'
  append binary value etp-commands.bin '-'
  append binary value etp-commands.bin 'h'
  append binary value etp-commands.bin 'e'
  append binary value etp-commands.bin 'a'
  append binary value etp-commands.bin 'p'
  append binary value etp-commands.bin 's'
  append binary value etp-commands.bin '\0'
  while $etp_overlapped_heaps_i < erts_max_processes
    if process_tab[$etp_overlapped_heaps_i]
      append binary value etp-commands.bin \
        (Eterm)$etp_overlapped_heaps_i
      append binary value etp-commands.bin \
        (Eterm)process_tab[$etp_overlapped_heaps_i]->heap
      append binary value etp-commands.bin \
        (Eterm)process_tab[$etp_overlapped_heaps_i]->hend
      append binary value etp-commands.bin \
        (Eterm)process_tab[$etp_overlapped_heaps_i]->old_heap
      append binary value etp-commands.bin \
        (Eterm)process_tab[$etp_overlapped_heaps_i]->old_hend
      set $etp_overlapped_heaps_p = process_tab[$etp_overlapped_heaps_i]->mbuf
      set $etp_overlapped_heaps_cnt = 0
      while $etp_overlapped_heaps_p && \
            ($etp_overlapped_heaps_cnt < $etp_max_depth)
        set $etp_overlapped_heaps_cnt++
        append binary value etp-commands.bin \
          (Eterm)$etp_overlapped_heaps_p
        append binary value etp-commands.bin \
(Eterm)(&($etp_overlapped_heaps_p->mem)+$etp_overlapped_heaps_p->size)
        set $etp_overlapped_heaps_p = $etp_overlapped_heaps_p->next
      end
      if $etp_overlapped_heaps_p
        printf "process_tab[%d] %% Too many HeapFragments\n", \
               $etp_overlapped_heaps_i
      end
      append binary value etp-commands.bin (Eterm)0x0
      append binary value etp-commands.bin (Eterm)0x0
    end
    set $etp_overlapped_heaps_i++
    if $etp_overlapped_heaps_i > $etp_overlapped_heaps_m
      printf "%% %d%%...\n", $etp_overlapped_heaps_t
      set $etp_overlapped_heaps_t += 10
      set $etp_overlapped_heaps_m += $etp_overlapped_heaps_q
      if $etp_overlapped_heaps_r > 0
        set $etp_overlapped_heaps_m++
        set $etp_overlapped_heaps_r--
      end
    end
  end
  etp-run
end

document etp-overlapped-heaps
%---------------------------------------------------------------------------
% etp-overlapped-heaps
% 
% Dump all process heap addresses in process_tab[], including 
% the heap fragments in binary format on the file etp-commands.bin.
% Then call etp_commands:file/1 to analyze if any heaps overlap.
%
% Requires 'erl' in the path and 'etp_commands.beam' in 'erl's search path.
%---------------------------------------------------------------------------
end



define etp-chart
# Args: Process*
#
# Non-reentrant
  etp-chart-start ($arg0)
  set ($arg0) = ($arg0)
  etp-msgq (($arg0)->msg)
  etp-stackdump ($arg0)
  etp-dictdump (($arg0)->dictionary)
  etp-dictdump (($arg0)->debug_dictionary)
  printf "%% Dumping other process data...\n"
  etp ($arg0)->seq_trace_token
  etp ($arg0)->fvalue
  printf "%% Dumping done.\n"
  etp-chart-print
end

document etp-chart
%---------------------------------------------------------------------------
% etp-chart Process*
% 
% Dump all process data to the file "etp-commands.bin" and then use
% the Erlang support module to print a memory chart of all terms.
%---------------------------------------------------------------------------
end



define etp-chart-start
# Args: Process*
#
# Non-reentrant
  set $etp_chart = 1
  set $etp_chart_id = 0
  set $etp_chart_start_p = ($arg0)
  dump binary value etp-commands.bin 'c'
  append binary value etp-commands.bin 'h'
  append binary value etp-commands.bin 'a'
  append binary value etp-commands.bin 'r'
  append binary value etp-commands.bin 't'
  append binary value etp-commands.bin '\0'
  append binary value etp-commands.bin (Eterm)($etp_chart_start_p->heap)
  append binary value etp-commands.bin (Eterm)($etp_chart_start_p->high_water)
  append binary value etp-commands.bin (Eterm)($etp_chart_start_p->hend)
  append binary value etp-commands.bin (Eterm)($etp_chart_start_p->old_heap)
  append binary value etp-commands.bin (Eterm)($etp_chart_start_p->old_hend)
  set $etp_chart_start_cnt = 0
  set $etp_chart_start_p = $etp_chart_start_p->mbuf
  while $etp_chart_start_p && ($etp_chart_start_cnt < $etp_max_depth)
    set $etp_chart_start_cnt++
    append binary value etp-commands.bin (Eterm)($etp_chart_start_p->mem)
    append binary value etp-commands.bin (Eterm)($etp_chart_start_p->size)
    set $etp_chart_start_p = $etp_chart_start_p->next
  end
  append binary value etp-commands.bin (Eterm)(0)
  append binary value etp-commands.bin (Eterm)(0)
  if $etp_chart_start_p
    printf "%% Too many HeapFragments\n"
  end
end

document etp-chart-start
%---------------------------------------------------------------------------
% etp-chart-start Process*
% 
% Dump a chart head to the file "etp-commands.bin".
%---------------------------------------------------------------------------
end



define etp-chart-entry-1
# Args: Eterm, int depth, int words
#
# Reentrant capable
  if ($arg1) == 0
    set $etp_chart_id++
    printf "#%d:", $etp_chart_id
  end
  append binary value etp-commands.bin ($arg0)&~0x3
  append binary value etp-commands.bin (Eterm)(($arg2)*sizeof(Eterm))
  append binary value etp-commands.bin (Eterm)$etp_chart_id
  append binary value etp-commands.bin (Eterm)($arg1)
#   printf "<dumped %#x %lu %lu %lu>", ($arg0)&~0x3, \
#     (Eterm)(($arg2)*sizeof(Eterm)), (Eterm)$etp_chart_id, (Eterm)($arg1)
end



define etp-chart-print
  set $etp_chart = 0
  etp-run
end

document etp-chart-print
%---------------------------------------------------------------------------
% etp-chart-print Process*
% 
% Print a memory chart of the dumped data in "etp-commands.bin", and stop
% chart recording.
%---------------------------------------------------------------------------
end

############################################################################
# ETS table debug
#

define etp-ets-tables
# Args:
#
# Non-reentrant
  printf "%% Dumping < %lu ETS tables\n", (unsigned long)db_max_tabs
  while $etp_ets_tables_i < db_max_tabs
    if (meta_main_tab[$etp_ets_tables_i].u.next_free & 3) == 0
      printf "%% %d:", $etp_ets_tables_i
      etp-1 ((Eterm)(meta_main_tab[$etp_ets_tables_i].u.tb->common.id)) 0
      printf " "
      etp-1 ((Eterm)(meta_main_tab[$etp_ets_tables_i].u.tb->common.owner)) 0
      printf "\n"
    end
    set $etp_ets_tables_i++
  end
  set $etp_ets_tables_i = 0
end

document etp-ets-tables
%---------------------------------------------------------------------------
% etp-ets-tables
%
% Dump all ETS table names and their indexies.
%---------------------------------------------------------------------------
end

define etp-ets-tabledump
# Args: int tableindex
#
# Non-reentrant
  printf "%% Dumping ETS table %d:", ($arg0)
  set $etp_ets_tabledump_n = 0
  set $etp_ets_tabledump_t = meta_main_tab[($arg0)].u.tb
  set $etp_ets_tabledump_i = 0
  etp-1 ($etp_ets_tabledump_t->common.the_name) 0
  printf " status=%#x\n", $etp_ets_tabledump_t->common.status
  if $etp_ets_tabledump_t->common.status & 0x130
    # Hash table
    set $etp_ets_tabledump_h = $etp_ets_tabledump_t->hash
    printf "%% nitems=%d\n", $etp_ets_tabledump_t->common.nitems
    while $etp_ets_tabledump_i < $etp_ets_tabledump_h->nactive
      set $etp_ets_tabledump_l = $etp_ets_tabledump_h->seg \
            [$etp_ets_tabledump_i>>8][$etp_ets_tabledump_i&0xFF]
      if $etp_ets_tabledump_l
        printf "%% Slot %d:\n", $etp_ets_tabledump_i
        while $etp_ets_tabledump_l
          if $etp_ets_tabledump_n
            printf ","
          else
            printf "["
          end
          set $etp_ets_tabledump_n++
          etp-1 ((Eterm)($etp_ets_tabledump_l->dbterm.tpl)|0x2) 0
          if $etp_ets_tabledump_l->hvalue == ((unsigned long)-1)
            printf "% *\n"
          else
            printf "\n"
          end
          set $etp_ets_tabledump_l = $etp_ets_tabledump_l->next
          if $etp_ets_tabledump_n >= $etp_max_depth
            set $etp_ets_tabledump_l = 0
          end
        end
      end
      set $etp_ets_tabledump_i++
    end
    if $etp_ets_tabledump_n
      printf "].\n"
    end
  else
    printf "%% Not a hash table\n"
  end
end

document etp-ets-tabledump
%---------------------------------------------------------------------------
% etp-ets-tabledump Slot
%
% Dump an ETS table with a specified slot index.
%---------------------------------------------------------------------------
end

############################################################################
# Erlang support module handling
#

define etp-run
  shell make -f "${ROOTDIR:?}/erts/etc/unix/etp_commands.mk" \
    ROOTDIR="${ROOTDIR:?}" ETP_DATA="etp-commands.bin"
end

document etp-run
%---------------------------------------------------------------------------
% etp-run
% 
% Make and run the Erlang support module on the input file 
% "erl-commands.bin". The environment variable ROOTDIR must
% be set to find $ROOTDIR/erts/etc/unix/etp_commands.mk.
%
% Also, erl and erlc must be in the path.
%---------------------------------------------------------------------------
end

############################################################################
# Toolbox parameter handling
#

define etp-set-max-depth
  if ($arg0) > 0
    set $etp_max_depth = ($arg0)
  else
    echo %%%Error: max-depth <= 0 %%%\n
  end
end

document etp-set-max-depth
%---------------------------------------------------------------------------
% etp-set-max-depth Depth
% 
% Set the max term depth to use for etp. The term dept limit
% works in both depth and width, so if you set the max depth to 10,
% an 11 element flat tuple will be truncated.
%---------------------------------------------------------------------------
end

define etp-set-max-string-length
  if ($arg0) > 0
    set $etp_max_string_length = ($arg0)
  else
    echo %%%Error: max-string-length <= 0 %%%\n
  end
end

document etp-set-max-string-length
%---------------------------------------------------------------------------
% etp-set-max-strint-length Length
% 
% Set the max string length to use for ept when printing lists
% that can be shown as printable strings. Printable strings
% that are longer will be truncated, and not even checked if
% they really are printable all the way to the end.
%---------------------------------------------------------------------------
end

define etp-show
  printf "etp-set-max-depth %d\n", $etp_max_depth
  printf "etp-set-max-string-length %d\n", $etp_max_string_length
end

document etp-show
%---------------------------------------------------------------------------
% etp-show
% 
% Show the commands needed to set all etp parameters 
% to their current value.
%---------------------------------------------------------------------------
end

############################################################################
# Init
#

define etp-init
  set $etp_arch64 = (sizeof(void *) == 8)
  if $etp_arch64
    set $etp_nil = 0xfffffffffffffffb
  else
    set $etp_nil = 0xfffffffb
  end
  set $etp_flat = 0
  set $etp_chart_id = 0
  set $etp_chart = 0

  set $etp_max_depth = 20
  set $etp_max_string_length = 100

  set $etp_ets_tables_i = 0
end

document etp-init
%---------------------------------------------------------------------------
% Use etp-help for a command overview and general help.
% 
% To use the Erlang support module, the environment variable ROOTDIR
% must be set to the toplevel installation directory of Erlang/OTP,
% so the etp-commands file becomes:
%     $ROOTDIR/erts/etc/unix/etp-commands
% Also, erl and erlc must be in the path.
%---------------------------------------------------------------------------
end


etp-init
help etp-init
etp-show