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Profiler: Cache parsed DWARF debug information in disassembly view

This changes browsing through disassembled functions in Profiler from a
painfully sluggish experience into quite a swift one. It's especially
true for profiling the kernel, as it has more than 10 megabytes of DWARF
data to churn through.
This commit is contained in:
Daniel Bertalan 2021-10-26 18:34:33 +02:00 committed by Andreas Kling
parent 8e1f882ac9
commit b883652a83
5 changed files with 19 additions and 4 deletions

View file

@ -11,6 +11,7 @@
#include <AK/MappedFile.h>
#include <AK/OwnPtr.h>
#include <AK/Vector.h>
#include <LibDebug/DebugInfo.h>
#include <LibELF/Image.h>
namespace Profiler {
@ -29,8 +30,11 @@ public:
size_t size;
String name;
MappedObject* object { nullptr };
// This is loaded lazily because we only need it in disassembly view
mutable OwnPtr<Debug::DebugInfo> debug_info;
String symbolicate(FlatPtr, u32* offset) const;
const Debug::DebugInfo& load_debug_info(FlatPtr base_address) const;
};
void handle_mmap(FlatPtr base, size_t size, const String& name);