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d2r2 type deduplication: further work on type content hashing; correct .debug_str_offsets handling; sketch out type dependency chain build

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This commit is contained in:
Ryan Fleury
2026-04-24 20:34:20 -07:00
parent 35e00de05c
commit ad0d023c93
9 changed files with 674 additions and 326 deletions
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src/dwarf/dwarf_parse_2.h
+20
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@@ -36,6 +36,19 @@ struct DW2_AbbrevMap
U64 slots_count;
};
////////////////////////////////
//~ rjf: String Offset Table (.debug_str_offsets)
typedef struct DW2_StrOffsetsTable DW2_StrOffsetsTable;
struct DW2_StrOffsetsTable
{
DW_Format format;
DW_Version version;
U64 entry_size;
U64 entries_count;
void *entries;
};
////////////////////////////////
//~ rjf: Parsing Context Bundle
@@ -49,6 +62,7 @@ struct DW2_ParseCtx
DW_Format format;
U64 addr_size;
DW2_AbbrevMap *abbrev_map;
DW2_StrOffsetsTable *str_offsets_table;
String8 unit_dir;
String8 unit_file;
};
@@ -210,10 +224,16 @@ internal U64 dw2_read_form_val(DW2_ParseCtx *ctx, String8 data, U64 off, DW_Form
internal U64 dw2_read_tag(Arena *arena, DW2_ParseCtx *ctx, String8 data, U64 off, DW2_Tag *tag_out);
internal DW2_Attrib *dw2_attrib_from_kind(DW2_Tag *tag, DW_AttribKind kind);
internal U64 dw2_reference_info_off_from_form_val(DW2_ParseCtx *ctx, DW2_FormVal *v);
////////////////////////////////
//~ rjf: Line Table Parsing
internal U64 dw2_read_line_table_header(Arena *arena, DW2_ParseCtx *ctx, String8 data, U64 off, DW2_LineTableHeader *out);
////////////////////////////////
//~ rjf: String Offset Table Parsing (.debug_str_offsets)
internal U64 dw2_read_str_offsets_table(String8 data, U64 off, DW2_StrOffsetsTable *out);
#endif // DWARF_PARSE_2_H