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-rw-r--r--src/etc/servo_gdb.py158
1 files changed, 79 insertions, 79 deletions
diff --git a/src/etc/servo_gdb.py b/src/etc/servo_gdb.py
index 188f317fb70..98d9639e7f3 100644
--- a/src/etc/servo_gdb.py
+++ b/src/etc/servo_gdb.py
@@ -12,7 +12,7 @@
# To load these, you need to add something like the following
# to your .gdbinit file.
#python
-#import sys
+#import sys
#sys.path.insert(0, '/home/<path to git checkout>/servo/src/etc')
#import servo_gdb
#servo_gdb.register_printers(None)
@@ -22,120 +22,120 @@ import gdb
# Print Au in both raw value and CSS pixels
class AuPrinter:
- def __init__(self, val):
- self.val = val
+ def __init__(self, val):
+ self.val = val
- def to_string(self):
- i32_type = gdb.lookup_type("i32")
- au = self.val.cast(i32_type);
- return "{0}px ({1} au)".format(au / 60.0, au)
+ def to_string(self):
+ i32_type = gdb.lookup_type("i32")
+ au = self.val.cast(i32_type);
+ return "{0}px ({1} au)".format(au / 60.0, au)
# Print a U8 bitfield as binary
class BitFieldU8Printer:
- def __init__(self, val):
- self.val = val
+ def __init__(self, val):
+ self.val = val
- def to_string(self):
- u8_type = gdb.lookup_type("u8")
- value = self.val.cast(u8_type);
- return "[{0:#010b}]".format(int(value))
+ def to_string(self):
+ u8_type = gdb.lookup_type("u8")
+ value = self.val.cast(u8_type);
+ return "[{0:#010b}]".format(int(value))
# Print a struct with fields as children
class ChildPrinter:
- def __init__(self, val):
- self.val = val
+ def __init__(self, val):
+ self.val = val
- def children(self):
- children = []
- for f in self.val.type.fields():
- children.append( (f.name, self.val[f.name]) )
- return children
+ def children(self):
+ children = []
+ for f in self.val.type.fields():
+ children.append( (f.name, self.val[f.name]) )
+ return children
- def to_string(self):
- return None
+ def to_string(self):
+ return None
# Allow a trusted node to be dereferenced in the debugger
class TrustedNodeAddressPrinter:
- def __init__(self, val):
- self.val = val
+ def __init__(self, val):
+ self.val = val
- def children(self):
- node_type = gdb.lookup_type("struct script::dom::node::Node").pointer()
- value = self.val.cast(node_type)
- return [('Node', value)]
+ def children(self):
+ node_type = gdb.lookup_type("struct script::dom::node::Node").pointer()
+ value = self.val.cast(node_type)
+ return [('Node', value)]
- def to_string(self):
- return self.val.address
+ def to_string(self):
+ return self.val.address
# Extract a node type ID from enum
class NodeTypeIdPrinter:
- def __init__(self, val):
- self.val = val
+ def __init__(self, val):
+ self.val = val
- def to_string(self):
- u8_ptr_type = gdb.lookup_type("u8").pointer()
- enum_0 = self.val.address.cast(u8_ptr_type).dereference()
- enum_type = self.val.type.fields()[int(enum_0)].type;
- return str(enum_type).lstrip('struct ')
+ def to_string(self):
+ u8_ptr_type = gdb.lookup_type("u8").pointer()
+ enum_0 = self.val.address.cast(u8_ptr_type).dereference()
+ enum_type = self.val.type.fields()[int(enum_0)].type;
+ return str(enum_type).lstrip('struct ')
# Printer for std::Option<>
class OptionPrinter:
- def __init__(self, val):
- self.val = val
+ def __init__(self, val):
+ self.val = val
- def is_some(self):
- # Get size of discriminator
- d_size = self.val.type.fields()[0].type.sizeof
+ def is_some(self):
+ # Get size of discriminator
+ d_size = self.val.type.fields()[0].type.sizeof
- if d_size > 0 and d_size <= 8:
- # Read first byte to check if None or Some
- ptr = self.val.address.cast(gdb.lookup_type("unsigned char").pointer())
- discriminator = int(ptr.dereference())
- return discriminator != 0
+ if d_size > 0 and d_size <= 8:
+ # Read first byte to check if None or Some
+ ptr = self.val.address.cast(gdb.lookup_type("unsigned char").pointer())
+ discriminator = int(ptr.dereference())
+ return discriminator != 0
- raise "unhandled discriminator size"
+ raise "unhandled discriminator size"
- def children(self):
- if self.is_some():
- option_type = self.val.type
+ def children(self):
+ if self.is_some():
+ option_type = self.val.type
- # Get total size and size of value
- ptr = self.val.address.cast(gdb.lookup_type("unsigned char").pointer())
- t_size = option_type.sizeof
- value_type = option_type.fields()[1].type.fields()[1].type
- v_size = value_type.sizeof
- data_ptr = (ptr + t_size - v_size).cast(value_type.pointer()).dereference()
- return [('Some', data_ptr)]
- return [('None', None)]
+ # Get total size and size of value
+ ptr = self.val.address.cast(gdb.lookup_type("unsigned char").pointer())
+ t_size = option_type.sizeof
+ value_type = option_type.fields()[1].type.fields()[1].type
+ v_size = value_type.sizeof
+ data_ptr = (ptr + t_size - v_size).cast(value_type.pointer()).dereference()
+ return [('Some', data_ptr)]
+ return [('None', None)]
- def to_string(self):
- return None
+ def to_string(self):
+ return None
# Useful for debugging when type is unknown
class TestPrinter:
- def __init__(self, val):
- self.val = val
+ def __init__(self, val):
+ self.val = val
- def to_string(self):
- return "[UNKNOWN - type = {0}]".format(str(self.val.type))
+ def to_string(self):
+ return "[UNKNOWN - type = {0}]".format(str(self.val.type))
type_map = [
- ('Au', AuPrinter),
- ('FlowFlags', BitFieldU8Printer),
- ('IntrinsicWidths', ChildPrinter),
- ('PlacementInfo', ChildPrinter),
- ('TrustedNodeAddress', TrustedNodeAddressPrinter),
- ('NodeTypeId', NodeTypeIdPrinter),
- ('Option', OptionPrinter),
+ ('Au', AuPrinter),
+ ('FlowFlags', BitFieldU8Printer),
+ ('IntrinsicWidths', ChildPrinter),
+ ('PlacementInfo', ChildPrinter),
+ ('TrustedNodeAddress', TrustedNodeAddressPrinter),
+ ('NodeTypeId', NodeTypeIdPrinter),
+ ('Option', OptionPrinter),
]
def lookup_servo_type (val):
- val_type = str(val.type)
- for (type_name, printer) in type_map:
- if val_type == type_name or val_type.endswith("::"+type_name):
- return printer(val)
- return None
- #return TestPrinter(val)
+ val_type = str(val.type)
+ for (type_name, printer) in type_map:
+ if val_type == type_name or val_type.endswith("::"+type_name):
+ return printer(val)
+ return None
+ #return TestPrinter(val)
def register_printers(obj):
- gdb.pretty_printers.append(lookup_servo_type)
+ gdb.pretty_printers.append(lookup_servo_type)
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-30 13:50:33 +0000