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LibCoredump: Don't copy uncompressed coredumps into a ByteBuffer

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This was completely unnecessary and accounted for 6% of the total time
spent when loading a WebContent coredump into CrashReporter.
This commit is contained in:
Andreas Kling 2021-09-22 00:33:43 +02:00
parent 1da8faebf5
commit 784ab75d2d
2 changed files with 31 additions and 6 deletions
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11
Userland/Libraries/LibCoredump/Reader.h
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@ -51,7 +51,9 @@ public:
HashMap<String, String> metadata() const;
private:
Reader(ByteBuffer);
explicit Reader(ReadonlyBytes);
explicit Reader(ByteBuffer);
explicit Reader(NonnullRefPtr<MappedFile>);
static Optional<ByteBuffer> decompress_coredump(const ReadonlyBytes&);
@ -75,7 +77,14 @@ private:
// as getters with the appropriate (non-JsonValue) types.
const JsonObject process_info() const;
// For uncompressed coredumps, we keep the MappedFile
RefPtr<MappedFile> m_mapped_file;
// For compressed coredumps, we decompress them into a ByteBuffer
ByteBuffer m_coredump_buffer;
ReadonlyBytes m_coredump_bytes;
ELF::Image m_coredump_image;
ssize_t m_notes_segment_index { -1 };
};