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615 lines (563 loc) · 12 KB
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define ____executor_globals
if basic_functions_module.zts
set $tsrm_ls = ts_resource_ex(0, 0)
set $eg = ((zend_executor_globals*) (*((void ***) $tsrm_ls))[executor_globals_id-1])
set $cg = ((zend_compiler_globals*) (*((void ***) $tsrm_ls))[compiler_globals_id-1])
else
set $eg = executor_globals
set $cg = compiler_globals
end
end
document ____executor_globals
portable way of accessing executor_globals, set $eg
this also sets compiler_globals to $cg
ZTS detection is automatically based on ext/standard module struct
end
define print_cvs
____executor_globals
set $p = $eg.current_execute_data.CVs
set $c = $eg.current_execute_data.op_array.last_var
set $v = $eg.current_execute_data.op_array.vars
set $i = 0
printf "Compiled variables count: %d\n", $c
while $i < $c
printf "%d = %s\n", $i, $v[$i].name
if $p[$i] != 0
printzv *$p[$i]
else
printf "*uninitialized*\n"
end
set $i = $i + 1
end
end
define dump_bt
set $t = $arg0
while $t
printf "[%p] ", $t
if $t->function_state.function->common.function_name
if $t->function_state.arguments
set $count = (int)*($t->function_state.arguments)
printf "%s(", $t->function_state.function->common.function_name
while $count > 0
set $zvalue = *(zval **)($t->function_state.arguments - $count)
set $type = $zvalue->type
if $type == 0
printf "NULL"
end
if $type == 1
printf "%ld", $zvalue->value.lval
end
if $type == 2
printf "%lf", $zvalue->value.dval
end
if $type == 3
if $zvalue->value.lval
printf "true"
else
printf "false"
end
end
if $type == 4
printf "array(%d)[%p]", $zvalue->value.ht->nNumOfElements, $zvalue
end
if $type == 5
printf "object[%p]", $zvalue
end
if $type == 6
____print_str $zvalue->value.str.val $zvalue->value.str.len
end
if $type == 7
printf "resource(#%d)", $zvalue->value.lval
end
if $type == 8
printf "constant"
end
if $type == 9
printf "const_array"
end
if $type > 9
printf "unknown type %d", $type
end
set $count = $count -1
if $count > 0
printf ", "
end
end
printf ") "
else
printf "%s() ", $t->function_state.function->common.function_name
end
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 = 1
____printzv $arg0 0
end
document printzv
prints zval contents
end
define ____printzv_contents
set $zvalue = $arg0
set $type = $zvalue->type
printf "(refcount=%d", $zvalue->refcount__gc
if $zvalue->is_ref__gc
printf ",is_ref"
end
printf ") "
if $type == 0
printf "NULL"
end
if $type == 1
printf "long: %ld", $zvalue->value.lval
end
if $type == 2
printf "double: %lf", $zvalue->value.dval
end
if $type == 3
printf "bool: "
if $zvalue->value.lval
printf "true"
else
printf "false"
end
end
if $type == 4
printf "array(%d): ", $zvalue->value.ht->nNumOfElements
if ! $arg1
printf "{\n"
set $ind = $ind + 1
____print_ht $zvalue->value.ht 1
set $ind = $ind - 1
set $i = $ind
while $i > 0
printf " "
set $i = $i - 1
end
printf "}"
end
set $type = 0
end
if $type == 5
printf "object"
____executor_globals
set $handle = $zvalue->value.obj.handle
set $handlers = $zvalue->value.obj.handlers
if basic_functions_module.zts
set $zobj = zend_objects_get_address($zvalue, $tsrm_ls)
else
set $zobj = zend_objects_get_address($zvalue)
end
if $handlers->get_class_entry == &zend_std_object_get_class
set $cname = $zobj->ce.name
else
set $cname = "Unknown"
end
printf "(%s) #%d", $cname, $handle
if ! $arg1
if $handlers->get_properties == &zend_std_get_properties
set $ht = $zobj->properties
if $ht
printf "(%d): ", $ht->nNumOfElements
printf "{\n"
set $ind = $ind + 1
____print_ht $ht 1
set $ind = $ind - 1
set $i = $ind
while $i > 0
printf " "
set $i = $i - 1
end
printf "}"
else
echo "no properties found"
end
end
end
set $type = 0
end
if $type == 6
printf "string(%d): ", $zvalue->value.str.len
____print_str $zvalue->value.str.val $zvalue->value.str.len
end
if $type == 7
printf "resource: #%d", $zvalue->value.lval
end
if $type == 8
printf "constant"
end
if $type == 9
printf "const_array"
end
if $type > 9
printf "unknown type %d", $type
end
printf "\n"
end
define ____printzv
____executor_globals
set $zvalue = $arg0
printf "[%p] ", $zvalue
if $zvalue == $eg.uninitialized_zval_ptr
printf "*uninitialized* "
end
set $zcontents = (zval*) $zvalue
if $arg1
____printzv_contents $zcontents $arg1
else
____printzv_contents $zcontents 0
end
end
define ____print_const_table
set $ht = $arg0
set $p = $ht->pListHead
while $p != 0
set $const = (zend_constant *) $p->pData
set $i = $ind
while $i > 0
printf " "
set $i = $i - 1
end
if $p->nKeyLength > 0
____print_str $p->arKey $p->nKeyLength
printf " => "
else
printf "%d => ", $p->h
end
____printzv_contents &$const->value 0
set $p = $p->pListNext
end
end
define print_const_table
set $ind = 1
printf "[%p] {\n", $arg0
____print_const_table $arg0
printf "}\n"
end
define ____print_ht
set $ht = (HashTable*)$arg0
set $p = $ht->pListHead
while $p != 0
set $i = $ind
while $i > 0
printf " "
set $i = $i - 1
end
if $p->nKeyLength > 0
____print_str $p->arKey $p->nKeyLength
printf " => "
else
printf "%d => ", $p->h
end
if $arg1 == 0
printf "%p\n", (void*)$p->pData
end
if $arg1 == 1
set $zval = *(zval **)$p->pData
____printzv $zval 1
end
if $arg1 == 2
printf "%s\n", (char*)$p->pData
end
set $p = $p->pListNext
end
end
define print_ht
set $ind = 1
printf "[%p] {\n", $arg0
____print_ht $arg0 1
printf "}\n"
end
document print_ht
dumps elements of HashTable made of zval
end
define print_htptr
set $ind = 1
printf "[%p] {\n", $arg0
____print_ht $arg0 0
printf "}\n"
end
document print_htptr
dumps elements of HashTable made of pointers
end
define print_htstr
set $ind = 1
printf "[%p] {\n", $arg0
____print_ht $arg0 2
printf "}\n"
end
document print_htstr
dumps elements of HashTable made of strings
end
define ____print_ft
set $ht = $arg0
set $p = $ht->pListHead
while $p != 0
set $func = (zend_function*)$p->pData
set $i = $ind
while $i > 0
printf " "
set $i = $i - 1
end
if $p->nKeyLength > 0
____print_str $p->arKey $p->nKeyLength
printf " => "
else
printf "%d => ", $p->h
end
printf "\"%s\"\n", $func->common.function_name
set $p = $p->pListNext
end
end
define print_ft
set $ind = 1
printf "[%p] {\n", $arg0
____print_ft $arg0
printf "}\n"
end
document print_ft
dumps a function table (HashTable)
end
define ____print_inh_class
set $ce = $arg0
if $ce->ce_flags & 0x10 || $ce->ce_flags & 0x20
printf "abstract "
else
if $ce->ce_flags & 0x40
printf "final "
end
end
printf "class %s", $ce->name
if $ce->parent != 0
printf " extends %s", $ce->parent->name
end
if $ce->num_interfaces != 0
printf " implements"
set $tmp = 0
while $tmp < $ce->num_interfaces
printf " %s", $ce->interfaces[$tmp]->name
set $tmp = $tmp + 1
if $tmp < $ce->num_interfaces
printf ","
end
end
end
set $ce = $ce->parent
end
define ____print_inh_iface
set $ce = $arg0
printf "interface %s", $ce->name
if $ce->num_interf
FDE5
aces != 0
set $ce = $ce->interfaces[0]
printf " extends %s", $ce->name
else
set $ce = 0
end
end
define print_inh
set $ce = $arg0
set $depth = 0
while $ce != 0
set $tmp = $depth
while $tmp != 0
printf " "
set $tmp = $tmp - 1
end
set $depth = $depth + 1
if $ce->ce_flags & 0x80
____print_inh_iface $ce
else
____print_inh_class $ce
end
printf " {\n"
end
while $depth != 0
set $tmp = $depth
while $tmp != 1
printf " "
set $tmp = $tmp - 1
end
printf "}\n"
set $depth = $depth - 1
end
end
define print_pi
set $pi = $arg0
printf "[%p] {\n", $pi
printf " h = %lu\n", $pi->h
printf " flags = %d (", $pi->flags
if $pi->flags & 0x100
printf "ZEND_ACC_PUBLIC"
else
if $pi->flags & 0x200
printf "ZEND_ACC_PROTECTED"
else
if $pi->flags & 0x400
printf "ZEND_ACC_PRIVATE"
else
if $pi->flags & 0x800
printf "ZEND_ACC_CHANGED"
end
end
end
end
printf ")\n"
printf " name = "
____print_str $pi->name $pi->name_length
printf "\n}\n"
end
define ____print_str
set $tmp = 0
set $str = $arg0
printf "\""
while $tmp < $arg1
if $str[$tmp] > 32 && $str[$tmp] < 127
printf "%c", $str[$tmp]
else
printf "\\%o", $str[$tmp]
end
set $tmp = $tmp + 1
end
printf "\""
end
define printzn
____executor_globals
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 "[%p] %s", $znode, $optype
if $znode->op_type == 1
printf ": "
____printzv &$znode->u.constant 0
end
if $znode->op_type == 2
printf ": "
set $tvar = (union _temp_variable *)((char *)$eg.current_execute_data->Ts + $znode->u.var)
____printzv ((union _temp_variable *)$tvar)->tmp_var 0
end
if $znode->op_type == 4
printf ": "
set $tvar = (union _temp_variable *)((char *)$eg.current_execute_data->Ts + $znode->u.var)
____printzv *$tvar->var.ptr_ptr 0
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 zbacktrace
____executor_globals
dump_bt $eg.current_execute_data
end
document zbacktrace
prints backtrace.
This command is almost a short cut for
> (gdb) ____executor_globals
> (gdb) dump_bt $eg.current_execute_data
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 " %p ", $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 %p.\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