augusto2112 created this revision.
augusto2112 added a reviewer: aprantl.
Herald added a project: All.
augusto2112 requested review of this revision.
Herald added a project: LLDB.
Herald added a subscriber: lldb-commits.
Implement SymbolFile::ContainsCompileOption, which returns true if the
string option was used when compiling the binary.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D147748
Files:
lldb/include/lldb/Symbol/SymbolFile.h
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
Index: lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
===================================================================
--- lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
+++ lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h
@@ -153,6 +153,8 @@
// Statistics overrides.
lldb_private::ModuleList GetDebugInfoModules() override;
+ bool ContainsCompileOption(const char *option) override;
+
protected:
enum { kHaveInitializedOSOs = (1 << 0), kNumFlags };
Index: lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
===================================================================
--- lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
+++ lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.cpp
@@ -1549,3 +1549,12 @@
}
return Status();
}
+
+bool SymbolFileDWARFDebugMap::ContainsCompileOption(const char *option) {
+ bool success = false;
+ ForEachSymbolFile([&](SymbolFileDWARF *oso_dwarf) -> bool {
+ success |= oso_dwarf->ContainsCompileOption(option);
+ return success;
+ });
+ return success;
+}
Index: lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
===================================================================
--- lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
+++ lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h
@@ -340,6 +340,8 @@
m_file_index = file_index;
}
+ bool ContainsCompileOption(const char *option) override;
+
protected:
typedef llvm::DenseMap<const DWARFDebugInfoEntry *, lldb_private::Type *>
DIEToTypePtr;
Index: lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
===================================================================
--- lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
+++ lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
@@ -4255,3 +4255,36 @@
return Status("no variable information is available in debug info for this "
"compile unit");
}
+
+bool SymbolFileDWARF::ContainsCompileOption(const char *option) {
+ auto check_in_dwarf_cu = [&option](DWARFUnit *dwarf_cu) {
+ const DWARFBaseDIE die = dwarf_cu->GetUnitDIEOnly();
+ if (!die)
+ return false;
+ const char *flags = die.GetAttributeValueAsString(DW_AT_APPLE_flags, NULL);
+
+ if (!flags)
+ return false;
+ if (!strstr(flags, option))
+ return false;
+ Args compiler_args(flags);
+ for (auto &arg : compiler_args.GetArgumentArrayRef())
+ if (strcmp(arg, option) == 0)
+ return true;
+
+ return false;
+ };
+
+ DWARFDebugInfo &debug_info = DebugInfo();
+ const uint32_t num_compile_units = GetNumCompileUnits();
+
+ for (uint32_t cu_idx = 0; cu_idx < num_compile_units; ++cu_idx) {
+ DWARFUnit *dwarf_cu = debug_info.GetUnitAtIndex(cu_idx);
+ if (dwarf_cu) {
+ if (check_in_dwarf_cu(dwarf_cu))
+ return true;
+ }
+ }
+
+ return false;
+}
Index: lldb/include/lldb/Symbol/SymbolFile.h
===================================================================
--- lldb/include/lldb/Symbol/SymbolFile.h
+++ lldb/include/lldb/Symbol/SymbolFile.h
@@ -435,6 +435,12 @@
virtual lldb::TypeSP CopyType(const lldb::TypeSP &other_type) = 0;
+ /// Returns true if the option exists in the compile options encoded in
+ /// the symbol file.
+ virtual bool ContainsCompileOption(const char *option) {
+ return false;
+ }
+
protected:
void AssertModuleLock();
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