From b405370af92360e1e00e373b1f602f6fd8c9dc1e Mon Sep 17 00:00:00 2001 From: Bartosz Taudul Date: Thu, 23 May 2024 23:12:39 +0200 Subject: [PATCH] Add lldb pretty printers for ShortPtr, Vector, Int24, Int48. --- extra/natvis.py | 100 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 96 insertions(+), 4 deletions(-) diff --git a/extra/natvis.py b/extra/natvis.py index 3e6b6272..0b68d840 100644 --- a/extra/natvis.py +++ b/extra/natvis.py @@ -1,11 +1,103 @@ import lldb def VectorSummary(value, dict): - size = value.GetChildMemberWithName('m_size').GetValueAsUnsigned() - capacity = 1 << value.GetChildMemberWithName('m_capacity').GetValueAsUnsigned() - magic = bool(value.GetChildMemberWithName('m_magic').GetValueAsUnsigned()) - return 'size={0}, capacity={1}, magic={2}'.format(size, capacity, magic) + v = value.GetNonSyntheticValue() + size = v.GetChildMemberWithName('m_size').GetValueAsUnsigned() + capacityVal = v.GetChildMemberWithName('m_capacity').GetValueAsUnsigned() + capacity = 1 << capacityVal if capacityVal < 63 else 'read-only' + magic = bool(v.GetChildMemberWithName('m_magic').GetValueAsUnsigned()) + return '{{size={0}, capacity={1}, magic={2}}}'.format(size, capacity, magic) + +def ShortPtrSummary(value, dict): + val = value.GetNonSyntheticValue() + ptr = val.GetChildMemberWithName('m_ptr') + type = val.GetType().GetTemplateArgumentType(0) + p0 = ptr.GetChildAtIndex(0).GetValueAsUnsigned() + p1 = ptr.GetChildAtIndex(1).GetValueAsUnsigned() + p2 = ptr.GetChildAtIndex(2).GetValueAsUnsigned() + p3 = ptr.GetChildAtIndex(3).GetValueAsUnsigned() + p4 = ptr.GetChildAtIndex(4).GetValueAsUnsigned() + p5 = ptr.GetChildAtIndex(5).GetValueAsUnsigned() + #return '0x{0:02x}{1:02x}{2:02x}{3:02x}{4:02x}{5:02x}'.format(p5, p4, p3, p2, p1, p0) + return value.CreateValueFromAddress('m_ptr', p0 | (p1 << 8) | (p2 << 16) | (p3 << 24) | (p4 << 32) | (p5 << 40), type) + +class ShortPtrPrinter: + def __init__(self, val, dict): + self.val = val + self.type = self.val.GetType().GetTemplateArgumentType(0) + + def update(self): + ptr = self.val.GetChildMemberWithName('m_ptr') + p0 = ptr.GetChildAtIndex(0).GetValueAsUnsigned() + p1 = ptr.GetChildAtIndex(1).GetValueAsUnsigned() + p2 = ptr.GetChildAtIndex(2).GetValueAsUnsigned() + p3 = ptr.GetChildAtIndex(3).GetValueAsUnsigned() + p4 = ptr.GetChildAtIndex(4).GetValueAsUnsigned() + p5 = ptr.GetChildAtIndex(5).GetValueAsUnsigned() + self.ptr = p0 | (p1 << 8) | (p2 << 16) | (p3 << 24) | (p4 << 32) | (p5 << 40) + + def num_children(self): + return 1 + + def get_child_index(self, name): + return int(name.lstrip('[').rstrip(']')) + + def get_child_at_index(self, index): + return self.val.CreateValueFromAddress('m_ptr', self.ptr, self.type) + +class VectorPrinter: + def __init__(self, val, dict): + self.val = val + self.magic = bool(val.GetChildMemberWithName('m_magic').GetValueAsUnsigned()) + if self.magic: + self.type = val.GetType().GetTemplateArgumentType(0).GetTemplateArgumentType(0) + else: + self.type = val.GetType().GetTemplateArgumentType(0) + self.stride = self.type.GetByteSize() + + def update(self): + ptr = self.val.GetChildMemberWithName('m_ptr').GetChildMemberWithName('m_ptr') + p0 = ptr.GetChildAtIndex(0).GetValueAsUnsigned() + p1 = ptr.GetChildAtIndex(1).GetValueAsUnsigned() + p2 = ptr.GetChildAtIndex(2).GetValueAsUnsigned() + p3 = ptr.GetChildAtIndex(3).GetValueAsUnsigned() + p4 = ptr.GetChildAtIndex(4).GetValueAsUnsigned() + p5 = ptr.GetChildAtIndex(5).GetValueAsUnsigned() + self.ptr = p0 | (p1 << 8) | (p2 << 16) | (p3 << 24) | (p4 << 32) | (p5 << 40) + self.size = self.val.GetChildMemberWithName('m_size').GetValueAsUnsigned() + + def num_children(self): + return self.size + + def get_child_index(self, name): + return int(name.lstrip('[').rstrip(']')) + + def get_child_at_index(self, index): + return self.val.CreateValueFromAddress('[%d]' % index, self.ptr + index * self.stride, self.type) + +def Int24Summary(value, dict): + val = value.GetNonSyntheticValue().GetChildMemberWithName('m_val') + p0 = val.GetChildAtIndex(0).GetValueAsUnsigned() + p1 = val.GetChildAtIndex(1).GetValueAsUnsigned() + p2 = val.GetChildAtIndex(2).GetValueAsUnsigned() + return p0 | (p1 << 8) | (p2 << 16) + +def Int48Summary(value, dict): + val = value.GetNonSyntheticValue().GetChildMemberWithName('m_val') + p0 = val.GetChildAtIndex(0).GetValueAsUnsigned() + p1 = val.GetChildAtIndex(1).GetValueAsUnsigned() + p2 = val.GetChildAtIndex(2).GetValueAsUnsigned() + p3 = val.GetChildAtIndex(3).GetValueAsUnsigned() + p4 = val.GetChildAtIndex(4).GetValueAsUnsigned() + p5 = val.GetChildAtIndex(5).GetValueAsUnsigned() + return p0 | (p1 << 8) | (p2 << 16) | (p3 << 24) | (p4 << 32) | (p5 << 40) def __lldb_init_module(debugger, dict): + lldb.formatters.Logger._lldb_formatters_debug_level = 2 debugger.HandleCommand('type summary add -w tracy -F natvis.VectorSummary -x ^tracy::Vector<.+>') + debugger.HandleCommand('type summary add -w tracy -F natvis.ShortPtrSummary -x ^tracy::short_ptr<.+>') + debugger.HandleCommand('type summary add -w tracy -F natvis.Int24Summary -x ^tracy::Int24') + debugger.HandleCommand('type summary add -w tracy -F natvis.Int48Summary -x ^tracy::Int48') + debugger.HandleCommand('type synthetic add -w tracy -l natvis.VectorPrinter -x ^tracy::Vector<.+>') + debugger.HandleCommand('type synthetic add -w tracy -l natvis.ShortPtrPrinter -x ^tracy::short_ptr<.+>') debugger.HandleCommand('type category enable tracy')