ClickHouse/src/Functions/addressToLineWithInlines.cpp
2023-06-25 08:31:02 +02:00

100 lines
2.9 KiB
C++

#if defined(__ELF__) && !defined(OS_FREEBSD)
#include <Common/Dwarf.h>
#include <Columns/ColumnString.h>
#include <Columns/ColumnArray.h>
#include <DataTypes/DataTypeString.h>
#include <DataTypes/DataTypeArray.h>
#include <Functions/FunctionFactory.h>
#include <IO/WriteBufferFromArena.h>
#include <IO/WriteHelpers.h>
#include <Access/Common/AccessFlags.h>
#include <Functions/addressToLine.h>
#include <vector>
namespace DB
{
namespace
{
class FunctionAddressToLineWithInlines: public FunctionAddressToLineBase<StringRefs, Dwarf::LocationInfoMode::FULL_WITH_INLINE>
{
public:
static constexpr auto name = "addressToLineWithInlines";
String getName() const override { return name; }
static FunctionPtr create(ContextPtr context)
{
context->checkAccess(AccessType::addressToLineWithInlines);
return std::make_shared<FunctionAddressToLineWithInlines>();
}
protected:
DataTypePtr getDataType() const override
{
return std::make_shared<DataTypeArray>(std::make_shared<DataTypeString>());
}
ColumnPtr getResultColumn(const typename ColumnVector<UInt64>::Container & data, size_t input_rows_count) const override
{
auto result_column = ColumnArray::create(ColumnString::create());
ColumnString & result_strings = typeid_cast<ColumnString &>(result_column->getData());
ColumnArray::Offsets & result_offsets = result_column->getOffsets();
ColumnArray::Offset current_offset = 0;
for (size_t i = 0; i < input_rows_count; ++i)
{
StringRefs res = implCached(data[i]);
for (auto & r : res)
result_strings.insertData(r.data, r.size);
current_offset += res.size();
result_offsets.push_back(current_offset);
}
return result_column;
}
void setResult(StringRefs & result, const Dwarf::LocationInfo & location, const std::vector<Dwarf::SymbolizedFrame> & inline_frames) const override
{
appendLocationToResult(result, location, nullptr);
for (const auto & inline_frame : inline_frames)
appendLocationToResult(result, inline_frame.location, &inline_frame);
}
private:
void appendLocationToResult(StringRefs & result, const Dwarf::LocationInfo & location, const Dwarf::SymbolizedFrame * frame) const
{
const char * arena_begin = nullptr;
WriteBufferFromArena out(cache.arena, arena_begin);
writeString(location.file.toString(), out);
writeChar(':', out);
writeIntText(location.line, out);
if (frame && frame->name != nullptr)
{
writeChar(':', out);
int status = 0;
writeString(demangle(frame->name, status), out);
}
result.emplace_back(out.complete());
out.finalize();
}
};
}
REGISTER_FUNCTION(AddressToLineWithInlines)
{
factory.registerFunction<FunctionAddressToLineWithInlines>();
}
}
#endif