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# Load this module into LLDB by running:
# command script import /path/to/Halide/tools/lldbhalide.py
import functools
import lldb
def normalize(raw):
return raw.lstrip('"').rstrip('"').replace(r"\n", " ").replace(" ", " ")
def summary_string(summary_fn):
@functools.wraps(summary_fn)
def wrapper(value, _):
if value is None or not value.IsValid():
return "<invalid>"
try:
return normalize(summary_fn(value).GetSummary())
except Exception as e:
return f"<error:{e},{value}>"
return wrapper
@summary_string
def call_name(value):
return value.EvaluateExpression("this->name()", lldb.SBExpressionOptions())
@summary_string
def call_lldb_string(value):
return value.EvaluateExpression(
"Halide::Internal::lldb_string(*this)", lldb.SBExpressionOptions()
)
class ProxyChildrenProvider:
def __init__(self, valobj, _):
self.inner = valobj
self.update()
def update(self):
pass
def num_children(self):
return self.inner.GetNumChildren()
def get_child_index(self, name):
return self.inner.GetIndexOfChildWithName(name)
def get_child_at_index(self, index):
return self.inner.GetChildAtIndex(index)
class IRChildrenProvider(ProxyChildrenProvider):
def __init__(self, valobj, _):
super().__init__(valobj.GetChildMemberWithName("ptr"), None)
class BoxChildrenProvider(IRChildrenProvider):
def __init__(self, valobj, _):
super().__init__(valobj.GetChildMemberWithName("contents"), None)
class FunctionChildrenProvider(ProxyChildrenProvider):
def __init__(self, valobj, _):
contents = valobj.EvaluateExpression(
"*this->contents.get()", lldb.SBExpressionOptions()
)
print(contents)
super().__init__(contents, None)
def __lldb_init_module(debugger, _):
base_exprs = [
"Add",
"And",
"Broadcast",
"Call",
"Cast",
"Div",
"EQ",
"GE",
"GT",
"LE",
"LT",
"Let",
"Load",
"Max",
"Min",
"Mod",
"Mul",
"NE",
"Not",
"Or",
"Ramp",
"Reinterpret",
"Select",
"Shuffle",
"Sub",
"Variable",
"VectorReduce",
]
for ty in base_exprs:
debugger.HandleCommand(
f"type summary add Halide::Internal::{ty} --python-function lldbhalide.call_lldb_string"
)
for ty in ("Expr", "Internal::Stmt"):
debugger.HandleCommand(
f"type summary add Halide::{ty} --python-function lldbhalide.call_lldb_string"
)
debugger.HandleCommand(
f"type synthetic add Halide::{ty} -l lldbhalide.IRChildrenProvider"
)
for ty in ("Definition", "FuncSchedule", "ReductionDomain", "StageSchedule"):
debugger.HandleCommand(
f"type synthetic add Halide::Internal::{ty} -l lldbhalide.BoxChildrenProvider"
)
debugger.HandleCommand(
"type synthetic add Halide::Internal::Function -l lldbhalide.FunctionChildrenProvider"
)
debugger.HandleCommand("type summary add Halide::Internal::Dim -s '${var.var%S}'")
debugger.HandleCommand(
"type summary add Halide::RVar --python-function lldbhalide.call_name"
)
debugger.HandleCommand(
"type summary add Halide::Var --python-function lldbhalide.call_name"
)
debugger.HandleCommand(
"type summary add halide_type_t -s '${var.code%S} bits=${var.bits%u} lanes=${var.lanes%u}'"
)
debugger.HandleCommand(
"type summary add Halide::Internal::RefCount -s ${var.count.Value%S}"
)
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