jasonmolenda added inline comments.
================
Comment at: lldb/source/Target/RegisterContextUnwind.cpp:642-643
m_full_unwind_plan_sp = GetFullUnwindPlanForFrame();
int valid_offset = -1;
if (IsUnwindPlanValidForCurrentPC(m_full_unwind_plan_sp, valid_offset)) {
+ active_row = m_full_unwind_plan_sp->GetRowForFunctionOffset(
----------------
clayborg wrote:
> remove "valid_offset" variable and also remove it from the second argument to
> IsUnwindPlanValidForCurrentPC as it isn't used anywhere now and is just dead
> code.
hm, this merits consideration more widely; I looked at all callers to
IsUnwindPlanValidForCurrentPC and none of them use the valid_offset that it
provides; they are all merely checking that the offset is covered by the
UnwindPlan's byte size. I suspect none of these are actually necessary; we
picked the unwind plan based on symbol name so you'd need a "symbol" that has a
large byte size, but an UnwindPlan that was sourced from some input that
limited the byte size range covered. idk, it might be possible tho, especially
in a stripped binary.
I'll change all of the callers to not use the returned valid_offset for now.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D124957/new/
https://reviews.llvm.org/D124957
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