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d2r2: .debug_loclists parsing, DWARF expression -> RDI location info; first pass at baking frame base into var locations to match simpler PDB behavior; fixes to high-pc address evaluation (based on form kind)

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This commit is contained in:
Ryan Fleury
2026-04-29 12:40:43 -07:00
parent 242f4e9cbd
commit 9a923e9bf9
16 changed files with 1280 additions and 95 deletions
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src/dwarf/dwarf_parse_2.h
+33 -1
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@@ -67,6 +67,7 @@ struct DW2_ParseCtx
DW2_OffsetTable *rnglists_table;
DW2_OffsetTable *str_offsets_table;
DW2_OffsetTable *addr_table;
DW2_OffsetTable *loclists_table;
String8 unit_dir;
String8 unit_file;
};
@@ -78,8 +79,9 @@ typedef struct DW2_FormVal DW2_FormVal;
struct DW2_FormVal
{
DW_FormKind kind;
String8 string;
U128 u128;
String8 string;
U64 addr;
};
typedef struct DW2_Attrib DW2_Attrib;
@@ -197,6 +199,31 @@ struct DW2_LineVMRegs
U64 discriminator;
};
////////////////////////////////
//~ rjf: Location Lists
typedef struct DW2_Loc DW2_Loc;
struct DW2_Loc
{
Rng1U64 range;
String8 expr;
};
typedef struct DW2_LocNode DW2_LocNode;
struct DW2_LocNode
{
DW2_LocNode *next;
DW2_Loc v;
};
typedef struct DW2_LocList DW2_LocList;
struct DW2_LocList
{
DW2_LocNode *first;
DW2_LocNode *last;
U64 count;
};
////////////////////////////////
//~ rjf: Globals
@@ -246,4 +273,9 @@ internal B32 dw2_try_offset_from_table_idx(DW2_OffsetTable *tbl, U64 idx, U64 *o
internal Rng1U64List dw2_rnglist_from_form_val(Arena *arena, DW2_ParseCtx *ctx, DW_Raw *raw, DW2_FormVal form_val);
////////////////////////////////
//~ rjf: Location List Parsing (.debug_loclists)
internal DW2_LocList dw2_loclist_from_form_val(Arena *arena, DW2_ParseCtx *ctx, DW_Raw *raw, DW2_FormVal form_val);
#endif // DWARF_PARSE_2_H