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tag: php-4.3.6
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define dump_bt
    set $t = $arg0
    while $t
printf "[0x%08x] ", $t
if $t->function_state.function->common.function_name
printf "%s() ", $t->function_state.function->common.function_name
else
printf "??? "
end
if $t->op_array != 0
printf "%s:%d ", $t->op_array->filename, $t->opline->lineno
end
set $t = $t->prev_execute_data
printf "\n"
    end
end

document dump_bt
dumps the current execution stack. usage: dump_bt executor_globals.current_execute_data
end

define printzv
set $ind = 0
____printzv $arg0 0
end

document printzv
prints content of zval
end

define ____printzv
set $zvalue = $arg0

if $zvalue->type == 0
set $typename = "NULL"
end
if $zvalue->type == 1
set $typename = "long"
end
if $zvalue->type == 2
set $typename = "double"
end
if $zvalue->type == 3
set $typename = "string"
end
if $zvalue->type == 4
set $typename = "array"
end
if $zvalue->type == 5
set $typename = "object"
end
if $zvalue->type == 6
set $typename = "bool"
end
if $zvalue->type == 7
set $typename = "resource"
end
if $zvalue->type == 8
set $typename = "constant"
end
if $zvalue->type == 9
set $typename = "const_array"
end

printf "[0x%08x] ", $zvalue

if $zvalue == executor_globals.uninitialized_zval_ptr
printf "*uninitialized* "
end
printf "(refcount=%d) %s: ", $zvalue->refcount, $typename
if $zvalue->type == 1
printf "%ld", $zvalue->value.lval
end
if $zvalue->type == 2
printf "%lf", $zvalue->value.dval
end
if $zvalue->type == 3
printf "\"%s\"(%d)", $zvalue->value.str.val, $zvalue->value.str.len
end
if $zvalue->type == 4
if ! $arg1
printf "{\n"
set $ind = $ind + 1
____print_ht $zvalue->value.ht
set $ind = $ind - 1
set $i = $ind
while $i > 0
printf " "
set $i = $i - 1
end
printf "}"
end
end
if $zvalue->type == 5
if ! $arg1
printf "(prop examination disabled due to a gdb bug)"
# set $ht = $zvalue->value.obj.handlers->get_properties($zvalue)
# printf "{\n"
# set $ind = $ind + 1
# ____print_ht $ht
# set $ind = $ind - 1
# set $i = $ind
# while $i > 0
# printf " "
# set $i = $i - 1
# end
# printf "}"
end
end
if $zvalue->type == 6
if $zvalue->lval
printf "true"
else
printf "false"
end
end
if $zvalue->type == 7
printf "#%d", $zvalue->value.lval
end
printf "\n"
end

define ____print_ht
set $ht = $arg0
set $p = $ht->pListHead

while $p != 0
set $zval = *(struct _zval_struct **)$p->pData

set $i = $ind
while $i > 0
printf " "
set $i = $i - 1
end

if $p->nKeyLength > 0
printf "\"%s\" => ", $p->arKey
else
printf "%d => ", $p->h
end

____printzv $zval 1
set $p = $p->pListNext
end
end

define print_ht
set $ind = 1
printf "[0x%08x] {\n", $arg0
____print_ht $arg0
printf "}\n"
end

document print_ht
dumps elements of HashTable made of zval
end

define printzn
set $ind = 0
set $znode = $arg0
if $znode->op_type == 1
set $optype = "IS_CONST"
end
if $znode->op_type == 2
set $optype = "IS_TMP_VAR"
end
if $znode->op_type == 4
set $optype = "IS_VAR"
end
if $znode->op_type == 8
set $optype = "IS_UNUSED"
end

printf "[0x%08x] %s", $znode, $optype

if $znode->op_type == 1
printf ": "
____printzv &$znode->u.constant
end
if $znode->op_type == 2
printf ": "
set $tvar = (union _temp_variable *)((char *)executor_globals.current_execute_data->Ts + $znode->u.var)
____printzv ((union _temp_variable *)$tvar)->tmp_var
end
if $znode->op_type == 4
printf ": "
set $tvar = (union _temp_variable *)((char *)executor_globals.current_execute_data->Ts + $znode->u.var)
____printzv *$tvar->var.ptr_ptr
end
if $znode->op_type == 8
printf "\n"
end
end

document printzn
print type and content of znode.
usage: printzn &opline->op1
end

define printzops
printf "op1 => "
printzn &execute_data->opline.op1
printf "op2 => "
printzn &execute_data->opline.op2
printf "result => "
printzn &execute_data->opline.result
end

document printzops
dump operands of the current opline
end

define zmemcheck
set $p = alloc_globals.head
set $stat = "?"
set $total_size = 0
if $arg0 != 0
set $not_found = 1
else
set $not_found = 0
end
printf " block size status file:line\n"
printf "-------------------------------------------------------------------------------\n"
while $p
set $aptr = $p + sizeof(struct _zend_mem_header) + sizeof(align_test)
if $arg0 == 0 || (void *)$aptr == (void *)$arg0
if $p->magic == 0x7312f8dc
set $stat = "OK"
end
if $p->magic == 0x99954317
set $stat = "FREED"
end
if $p->magic == 0xfb8277dc
set $stat = "CACHED"
end
set $filename = strrchr($p->filename, '/')
if !$filename
set $filename = $p->filename
else
set $filename = $filename + 1
end
printf " 0x%08x ", $aptr
if $p->size == sizeof(struct _zval_struct) && ((struct _zval_struct *)$aptr)->type >= 0 && ((struct _zval_struct *)$aptr)->type < 10
printf "ZVAL?(%-2d) ", $p->size
else
printf "%-9d ", $p->size
end
set $total_size = $total_size + $p->size
printf "%-06s %s:%d", $stat, $filename, $p->lineno
if $p->orig_filename
set $orig_filename = strrchr($p->orig_filename, '/')
if !$orig_filename
set $orig_filename = $p->orig_filename
else
set $orig_filename = $orig_filename + 1
end
printf " <= %s:%d\n", $orig_filename, $p->orig_lineno
else
printf "\n"
end
if $arg0 != 0
set $p = 0
set $not_found = 0
else
set $p = $p->pNext
end
else
set $p = $p->pNext
end
end
if $not_found
printf "no such block that begins at 0x%08x.\n", $aptr
end
if $arg0 == 0
printf "-------------------------------------------------------------------------------\n"
printf " total: %d bytes\n", $total_size
end
end

document zmemcheck
show status of a memory block.
usage: zmemcheck [ptr].
if ptr is 0, all blocks will be listed.
end

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