def _pointer(self):
inner = self.val.type.template_argument(0)
storage = template_type(rawtype(self.val.type.template_argument(1)))
if storage == 'HPHP::detail::AtomicStorage':
return idx.atomic_get(self.val['m_s']).cast(inner.pointer())
else:
return self.val['m_s'].cast(inner.pointer())
def _pointer(self):
inner = self.val.type.template_argument(0)
storage = template_type(rawtype(self.val.type.template_argument(1)))
if storage == 'HPHP::detail::AtomicStorage':
return idx.atomic_get(self.val['m_s']).cast(inner.pointer())
else:
return self.val['m_s'].cast(inner.pointer())
def create_php(idx, ar, rip='0x????????', pc=None):
"""Collect metadata for a PHP frame.
All arguments are expected to be gdb.Values, except `idx'.
"""
func = ar['m_func']
shared = rawptr(func['m_shared'])
# Pull the function name.
if not shared['m_isClosureBody']:
func_name = nameof(func)
else:
func_name = nameof(func['m_baseCls'])
func_name = func_name[:func_name.find(';')]
if len(func_name) == 0:
func_name = '<pseudomain>'
frame = {
'idx': idx,
'sp': str(ar),
'rip': _format_rip(rip),
'func': '[PHP] %s()' % func_name,
}
attrs = idxs.atomic_get(func['m_attrs']['m_attrs'])
if attrs & V('HPHP::AttrBuiltin'):
# Builtins don't have source files.
return frame
# Pull the PC from Func::base() and ar->m_soff if necessary.
if pc is None:
pc = shared['m_base'] + ar['m_soff']
# Adjust it for calls.
op_ptype = T('HPHP::Op').pointer()
op = (func['m_unit']['m_bc'] + pc).cast(op_ptype).dereference()
if op in [V('HPHP::Op::' + x) for x in
['PopR', 'UnboxR', 'UnboxRNop']]:
pc -= 1
frame['file'] = php_filename(func)
frame['line'] = php_line_number(func, pc)
return frame
def create_php(idx, ar, rip='0x????????', pc=None):
"""Collect metadata for a PHP frame.
All arguments are expected to be gdb.Values, except `idx'.
"""
func = ar['m_func']
shared = rawptr(func['m_shared'])
# Pull the function name.
if not shared['m_isClosureBody']:
func_name = nameof(func)
else:
func_name = nameof(func['m_baseCls'])
func_name = func_name[:func_name.find(';')]
if len(func_name) == 0:
func_name = '<pseudomain>'
frame = {
'idx': idx,
'fp': str(ar),
'rip': _format_rip(rip),
'func': '[PHP] %s()' % func_name,
}
attrs = idxs.atomic_get(func['m_attrs']['m_attrs'])
if attrs & V('HPHP::AttrBuiltin'):
# Builtins don't have source files.
return frame
# Pull the PC from Func::base() and ar->m_soff if necessary.
if pc is None:
pc = shared['m_base'] + ar['m_soff']
# Adjust it for calls.
op_ptype = T('HPHP::Op').pointer()
op = (func['m_unit']['m_bc'] + pc).cast(op_ptype).dereference()
if op in [V('HPHP::Op::' + x) for x in
['PopR', 'UnboxR', 'UnboxRNop']]:
pc -= 1
frame['file'] = php_filename(func)
frame['line'] = php_line_number(func, pc)
return frame
def create_php(idx, ar, rip="0x????????", pc=None):
"""Collect metadata for a PHP frame.
All arguments are expected to be gdb.Values, except `idx'.
"""
func = ar["m_func"]
shared = rawptr(func["m_shared"])
# Pull the function name.
if not shared["m_isClosureBody"]:
func_name = nameof(func)
else:
func_name = nameof(func["m_baseCls"])
func_name = func_name[: func_name.find(";")]
if len(func_name) == 0:
func_name = "<pseudomain>"
frame = {"idx": idx, "sp": str(ar), "rip": _format_rip(rip), "func": "[PHP] {0!s}()".format(func_name)}
attrs = idxs.atomic_get(func["m_attrs"]["m_attrs"])
if attrs & V("HPHP::AttrBuiltin"):
# Builtins don't have source files.
return frame
# Pull the PC from Func::base() and ar->m_soff if necessary.
if pc is None:
pc = shared["m_base"] + ar["m_soff"]
# Adjust it for calls.
op_ptype = T("HPHP::Op").pointer()
op = (func["m_unit"]["m_bc"] + pc).cast(op_ptype).dereference()
if op in [V("HPHP::Op::" + x) for x in ["PopR", "UnboxR", "UnboxRNop"]]:
pc -= 1
frame["file"] = php_filename(func)
frame["line"] = php_line_number(func, pc)
return frame
def create_php(idx, ar, rip='0x????????', pc=None):
"""Collect metadata for a PHP frame.
All arguments are expected to be gdb.Values, except `idx'.
"""
func = ar['m_func']
shared = rawptr(func['m_shared'])
# Pull the function name.
if not shared['m_isClosureBody']:
func_name = nameof(func)
else:
func_name = nameof(func['m_baseCls'].cast(T('HPHP::Class').pointer()))
func_name = func_name[:func_name.find(';')]
if len(func_name) == 0:
func_name = '<pseudomain>'
frame = {
'idx': idx,
'fp': str(ar),
'rip': _format_rip(rip),
'func': '[PHP] %s()' % func_name,
}
attrs = idxs.atomic_get(func['m_attrs']['m_attrs'])
if attrs & V('HPHP::AttrBuiltin'):
# Builtins don't have source files.
return frame
# Pull the PC from Func::base() and ar->m_callOff if necessary.
if pc is None:
pc = shared['m_base'] + (ar['m_callOffAndFlags'] >> 2)
frame['file'] = php_filename(func)
frame['line'] = php_line_number(func, pc)
return frame
