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LibDebug: Port the rest of DWARF parsing to Core::Stream
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parent
e62269650a
commit
91505d8cf3
8 changed files with 144 additions and 163 deletions
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@ -7,8 +7,8 @@
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#pragma once
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#include <AK/DeprecatedFlyString.h>
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#include <AK/MemoryStream.h>
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#include <AK/Vector.h>
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#include <LibCore/Stream.h>
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#include <LibDebug/Dwarf/DwarfTypes.h>
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namespace Debug::Dwarf {
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@ -65,6 +65,18 @@ struct [[gnu::packed]] LineProgramUnitHeader32 {
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i8 line_base() const { return (common.version <= 4) ? v4.line_base : v5.line_base; }
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u8 line_range() const { return (common.version <= 4) ? v4.line_range : v5.line_range; }
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u8 opcode_base() const { return (common.version <= 4) ? v4.opcode_base : v5.opcode_base; }
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static ErrorOr<LineProgramUnitHeader32> read_from_stream(Core::Stream::Stream& stream)
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{
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LineProgramUnitHeader32 header;
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TRY(stream.read_entire_buffer(Bytes { &header.common, sizeof(header.common) }));
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if (header.common.version <= 4)
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TRY(stream.read_entire_buffer(Bytes { &header.v4, sizeof(header.v4) }));
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else
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TRY(stream.read_entire_buffer(Bytes { &header.v5, sizeof(header.v5) }));
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TRY(stream.read_entire_buffer(Bytes { &header.std_opcode_lengths, min(sizeof(header.std_opcode_lengths), (header.opcode_base() - 1) * sizeof(header.std_opcode_lengths[0])) }));
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return header;
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}
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};
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enum class ContentType {
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@ -92,23 +104,12 @@ enum class PathListType {
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Filenames,
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};
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inline InputStream& operator>>(InputStream& stream, LineProgramUnitHeader32& header)
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{
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stream.read_or_error(Bytes { &header.common, sizeof(header.common) });
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if (header.common.version <= 4)
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stream.read_or_error(Bytes { &header.v4, sizeof(header.v4) });
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else
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stream.read_or_error(Bytes { &header.v5, sizeof(header.v5) });
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stream.read_or_error(Bytes { &header.std_opcode_lengths, min(sizeof(header.std_opcode_lengths), (header.opcode_base() - 1) * sizeof(header.std_opcode_lengths[0])) });
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return stream;
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}
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class LineProgram {
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AK_MAKE_NONCOPYABLE(LineProgram);
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AK_MAKE_NONMOVABLE(LineProgram);
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public:
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explicit LineProgram(DwarfInfo& dwarf_info, InputMemoryStream& stream);
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explicit LineProgram(DwarfInfo& dwarf_info, Core::Stream::SeekableStream& stream);
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struct LineInfo {
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FlatPtr address { 0 };
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@ -173,7 +174,7 @@ private:
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static constexpr u16 MAX_DWARF_VERSION = 5;
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DwarfInfo& m_dwarf_info;
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InputMemoryStream& m_stream;
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Core::Stream::SeekableStream& m_stream;
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size_t m_unit_offset { 0 };
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LineProgramUnitHeader32 m_unit_header {};
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