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DWARF/NFC: Centralize DIERef conversions

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apple and manual indexing code were creating a DIERef in a bunch of
places. Though the code itself is not much, it is also easy to simplify
by factoring out the DIERef creation. In HashedNameToDIE I create a
conversion operator from DIEInfo to DIERef, and in ManualDWARFIndex I
just create the DIERef in a global variable up-front.

This also reduces the diff in follow-up patches which change how DIERefs
are constructed.

llvm-svn: 360669
This commit is contained in:
Pavel Labath 2019-05-14 12:44:40 +00:00
parent 2e9591c23a
commit 62f5b591f4
3 changed files with 24 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.cpp
View File

@ -13,8 +13,7 @@ void DWARFMappedHash::ExtractDIEArray(const DIEInfoArray &die_info_array,
DIEArray &die_offsets) {
const size_t count = die_info_array.size();
for (size_t i = 0; i < count; ++i)
die_offsets.emplace_back(die_info_array[i].cu_offset,
die_info_array[i].offset);
die_offsets.emplace_back(die_info_array[i]);
}
void DWARFMappedHash::ExtractDIEArray(const DIEInfoArray &die_info_array,
@ -33,8 +32,7 @@ void DWARFMappedHash::ExtractDIEArray(const DIEInfoArray &die_info_array,
tag == DW_TAG_structure_type || tag == DW_TAG_class_type;
}
if (tag_matches)
die_offsets.emplace_back(die_info_array[i].cu_offset,
die_info_array[i].offset);
die_offsets.emplace_back(die_info_array[i]);
}
}
}
@ -58,8 +56,7 @@ void DWARFMappedHash::ExtractDIEArray(const DIEInfoArray &die_info_array,
tag == DW_TAG_structure_type || tag == DW_TAG_class_type;
}
if (tag_matches)
die_offsets.emplace_back(die_info_array[i].cu_offset,
die_info_array[i].offset);
die_offsets.emplace_back(die_info_array[i]);
}
}
}
@ -77,8 +74,7 @@ void DWARFMappedHash::ExtractClassOrStructDIEArray(
// We found the one true definition for this class, so only return
// that
die_offsets.clear();
die_offsets.emplace_back(die_info_array[i].cu_offset,
die_info_array[i].offset);
die_offsets.emplace_back(die_info_array[i]);
return;
} else {
// Put the one true definition as the first entry so it matches first
@ -86,8 +82,7 @@ void DWARFMappedHash::ExtractClassOrStructDIEArray(
die_info_array[i].offset);
}
} else {
die_offsets.emplace_back(die_info_array[i].cu_offset,
die_info_array[i].offset);
die_offsets.emplace_back(die_info_array[i]);
}
}
}
@ -99,8 +94,7 @@ void DWARFMappedHash::ExtractTypesFromDIEArray(
const size_t count = die_info_array.size();
for (size_t i = 0; i < count; ++i) {
if ((die_info_array[i].type_flags & type_flag_mask) == type_flag_value)
die_offsets.emplace_back(die_info_array[i].cu_offset,
die_info_array[i].offset);
die_offsets.emplace_back(die_info_array[i]);
}
}

2
lldb/source/Plugins/SymbolFile/DWARF/HashedNameToDIE.h
View File

@ -56,6 +56,8 @@ public:
DIEInfo();
DIEInfo(dw_offset_t c, dw_offset_t o, dw_tag_t t, uint32_t f, uint32_t h);
explicit operator DIERef() const { return {cu_offset, offset}; }
};
struct Atom {

44
lldb/source/Plugins/SymbolFile/DWARF/ManualDWARFIndex.cpp
View File

@ -245,6 +245,7 @@ void ManualDWARFIndex::IndexUnitImpl(
}
}
DIERef ref(cu_offset, die.GetOffset());
switch (tag) {
case DW_TAG_inlined_subroutine:
case DW_TAG_subprogram:
@ -258,38 +259,30 @@ void ManualDWARFIndex::IndexUnitImpl(
ConstString objc_fullname_no_category_name(
objc_method.GetFullNameWithoutCategory(true));
ConstString objc_class_name_no_category(objc_method.GetClassName());
set.function_fullnames.Insert(ConstString(name),
DIERef(cu_offset, die.GetOffset()));
set.function_fullnames.Insert(ConstString(name), ref);
if (objc_class_name_with_category)
set.objc_class_selectors.Insert(
objc_class_name_with_category,
DIERef(cu_offset, die.GetOffset()));
set.objc_class_selectors.Insert(objc_class_name_with_category,
ref);
if (objc_class_name_no_category &&
objc_class_name_no_category != objc_class_name_with_category)
set.objc_class_selectors.Insert(
objc_class_name_no_category,
DIERef(cu_offset, die.GetOffset()));
set.objc_class_selectors.Insert(objc_class_name_no_category, ref);
if (objc_selector_name)
set.function_selectors.Insert(objc_selector_name,
DIERef(cu_offset, die.GetOffset()));
set.function_selectors.Insert(objc_selector_name, ref);
if (objc_fullname_no_category_name)
set.function_fullnames.Insert(objc_fullname_no_category_name,
DIERef(cu_offset, die.GetOffset()));
ref);
}
// If we have a mangled name, then the DW_AT_name attribute is
// usually the method name without the class or any parameters
bool is_method = DWARFDIE(&unit, &die).IsMethod();
if (is_method)
set.function_methods.Insert(ConstString(name),
DIERef(cu_offset, die.GetOffset()));
set.function_methods.Insert(ConstString(name), ref);
else
set.function_basenames.Insert(ConstString(name),
DIERef(cu_offset, die.GetOffset()));
set.function_basenames.Insert(ConstString(name), ref);
if (!is_method && !mangled_cstr && !objc_method.IsValid(true))
set.function_fullnames.Insert(ConstString(name),
DIERef(cu_offset, die.GetOffset()));
set.function_fullnames.Insert(ConstString(name), ref);
}
if (mangled_cstr) {
// Make sure our mangled name isn't the same string table entry as
@ -299,8 +292,7 @@ void ManualDWARFIndex::IndexUnitImpl(
if (name && name != mangled_cstr &&
((mangled_cstr[0] == '_') ||
(::strcmp(name, mangled_cstr) != 0))) {
set.function_fullnames.Insert(ConstString(mangled_cstr),
DIERef(cu_offset, die.GetOffset()));
set.function_fullnames.Insert(ConstString(mangled_cstr), ref);
}
}
}
@ -318,22 +310,19 @@ void ManualDWARFIndex::IndexUnitImpl(
case DW_TAG_union_type:
case DW_TAG_unspecified_type:
if (name && !is_declaration)
set.types.Insert(ConstString(name), DIERef(cu_offset, die.GetOffset()));
set.types.Insert(ConstString(name), ref);
if (mangled_cstr && !is_declaration)
set.types.Insert(ConstString(mangled_cstr),
DIERef(cu_offset, die.GetOffset()));
set.types.Insert(ConstString(mangled_cstr), ref);
break;
case DW_TAG_namespace:
if (name)
set.namespaces.Insert(ConstString(name),
DIERef(cu_offset, die.GetOffset()));
set.namespaces.Insert(ConstString(name), ref);
break;
case DW_TAG_variable:
if (name && has_location_or_const_value && is_global_or_static_variable) {
set.globals.Insert(ConstString(name),
DIERef(cu_offset, die.GetOffset()));
set.globals.Insert(ConstString(name), ref);
// Be sure to include variables by their mangled and demangled names if
// they have any since a variable can have a basename "i", a mangled
// named "_ZN12_GLOBAL__N_11iE" and a demangled mangled name
@ -345,8 +334,7 @@ void ManualDWARFIndex::IndexUnitImpl(
// entries
if (mangled_cstr && name != mangled_cstr &&
((mangled_cstr[0] == '_') || (::strcmp(name, mangled_cstr) != 0))) {
set.globals.Insert(ConstString(mangled_cstr),
DIERef(cu_offset, die.GetOffset()));
set.globals.Insert(ConstString(mangled_cstr), ref);
}
}
break;