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LibDebug: Implement support for AttributeDataForm::{UData,LineStrP}

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This commit is contained in:
Gunnar Beutner 2021-04-28 22:15:51 +02:00 committed by Andreas Kling
parent d2f0984fef
commit d0a7547537
Notes: sideshowbarker 2024-07-18 18:59:41 +09:00 
Author: https://github.com/gunnarbeutner
Commit: https://github.com/SerenityOS/serenity/commit/d0a75475376
Pull-request: https://github.com/SerenityOS/serenity/pull/6714
2 changed files with 21 additions and 0 deletions
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19
Userland/Libraries/LibDebug/Dwarf/DwarfInfo.cpp
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@ -16,6 +16,7 @@ DwarfInfo::DwarfInfo(const ELF::Image& elf)
m_debug_info_data = section_data(".debug_info");
m_abbreviation_data = section_data(".debug_abbrev");
m_debug_strings_data = section_data(".debug_str");
m_debug_line_strings_data = section_data(".debug_line_str");
populate_compilation_units();
}
@ -104,6 +105,14 @@ AttributeValue DwarfInfo::get_attribute_value(AttributeDataForm form,
value.data.as_i32 = data;
break;
}
case AttributeDataForm::UData: {
size_t data;
debug_info_stream.read_LEB128_unsigned(data);
VERIFY(!debug_info_stream.has_any_error());
value.type = AttributeValue::Type::UnsignedNumber;
value.data.as_u32 = data;
break;
}
case AttributeDataForm::SecOffset: {
u32 data;
debug_info_stream >> data;
@ -191,6 +200,16 @@ AttributeValue DwarfInfo::get_attribute_value(AttributeDataForm form,
assign_raw_bytes_value(length);
break;
}
case AttributeDataForm::LineStrP: {
u32 offset;
debug_info_stream >> offset;
VERIFY(!debug_info_stream.has_any_error());
value.type = AttributeValue::Type::String;
auto strings_data = debug_line_strings_data();
value.data.as_string = reinterpret_cast<const char*>(strings_data.data() + offset);
break;
}
default:
dbgln("Unimplemented AttributeDataForm: {}", (u32)form);
VERIFY_NOT_REACHED();

2
Userland/Libraries/LibDebug/Dwarf/DwarfInfo.h
View file

@ -49,6 +49,7 @@ public:
ReadonlyBytes debug_info_data() const { return m_debug_info_data; }
ReadonlyBytes abbreviation_data() const { return m_abbreviation_data; }
ReadonlyBytes debug_strings_data() const { return m_debug_strings_data; }
ReadonlyBytes debug_line_strings_data() const { return m_debug_line_strings_data; }
template<typename Callback>
void for_each_compilation_unit(Callback) const;
@ -65,6 +66,7 @@ private:
ReadonlyBytes m_debug_info_data;
ReadonlyBytes m_abbreviation_data;
ReadonlyBytes m_debug_strings_data;
ReadonlyBytes m_debug_line_strings_data;
Vector<Dwarf::CompilationUnit> m_compilation_units;
};