yinghuitan marked 19 inline comments as done.
yinghuitan added inline comments.


================
Comment at: lldb/source/Symbol/SymbolFileOnDemand.cpp:28
+
+uint32_t SymbolFileOnDemand::CalculateAbilities() {
+  if (!this->m_debug_info_enabled) {
----------------
clayborg wrote:
> We might consider letting this call always go through to the underlying 
> symbol file and report the abilities from it.
Sure. It does not matter much in real world because ability is never calculated 
on SymbolFileOnDemand. 


================
Comment at: lldb/source/Symbol/SymbolFileOnDemand.cpp:97
+
+bool SymbolFileOnDemand::ParseLineTable(CompileUnit &comp_unit) {
+  if (!this->m_debug_info_enabled) {
----------------
clayborg wrote:
> We might be able to always let this call through since the line tables will 
> be parsed if the user sets a file and line breakpoint. We are mainly trying 
> to stop the global name lookups in SymbolFileOnDemand
If the user sets a file and line breakpoint and a compile unit/supported file 
is matched against the breakpoint file its parent module's SymbolFileOnDemand 
will be hydrated before ParseLineTable() is called anyway so manual call 
through is unnecessary.
I prefer to keep things not pass through by default to prevent any accidental 
leaking. 


================
Comment at: lldb/source/Symbol/SymbolFileOnDemand.cpp:514-516
+lldb::UnwindPlanSP
+SymbolFileOnDemand::GetUnwindPlan(const Address &address,
+                                  const RegisterInfoResolver &resolver) {
----------------
clayborg wrote:
> We might consider letting this always go through as unwind info doesn't 
> involve any indexing of debug info.
Yes, we could. But I would like to keep all functions guarded by default unless 
explicitly required by a hydration scenario to prevent any accidental leakage.


================
Comment at: lldb/source/Target/Statistics.cpp:66
+  module.try_emplace("debugInfoEnabled", debug_info_enabled);
+  module.try_emplace("symtab_stripped", symtab_stripped);
   if (!symfile_path.empty())
----------------
clayborg wrote:
> Other key/value pairs for symbol table stuff start with "symbolTable",
Ah, thanks! Bad auto replace for variable name.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D121631/new/

https://reviews.llvm.org/D121631

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