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d2r2: hook up scope containers to contained types / namespaces; fix address table parsing

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This commit is contained in:
Ryan Fleury
2026-05-05 09:42:55 -07:00
parent aee299efe7
commit fb04768002
6 changed files with 170 additions and 34 deletions
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src/dwarf/dwarf_parse_2.c
+34 -8
View File
@@ -908,15 +908,27 @@ dw2_read_offset_table(String8 data, U64 off, DW2_OffsetTable *out)
// rjf: version 5: read rest (this section only exists in 5+)
if(version == DW_Version_5)
{
// rjf: skip padding
off += sizeof(U16);
// rjf: read address / segment selector size (these need to be 0 in non-address offset tables)
U8 addr_size = 0;
U8 segment_selector_size = 0;
off += str8_deserial_read_struct(data, off, &addr_size);
off += str8_deserial_read_struct(data, off, &segment_selector_size);
// rjf: determine entry size
U64 entry_size = dw_size_from_format(format);
if(addr_size != 0)
{
entry_size = addr_size + segment_selector_size;
}
// rjf: fill table info
out->format = format;
out->version = version;
out->entry_size = dw_size_from_format(format);
out->entries_count = (unit_data_off_opl - off) / out->entry_size;
out->entries = data.str + off;
out->format = format;
out->version = version;
out->addr_size = addr_size;
out->segment_selector_size = segment_selector_size;
out->entry_size = entry_size;
out->entries_count = (unit_data_off_opl - off) / out->entry_size;
out->entries = data.str + off;
// rjf: skip table
off = unit_data_off_opl;
@@ -934,7 +946,21 @@ dw2_try_offset_from_table_idx(DW2_OffsetTable *tbl, U64 idx, U64 *out)
{
U64 entry_size = tbl->entry_size;
U64 entry_off = idx * entry_size;
MemoryCopy(out, (U8 *)tbl->entries + entry_off, entry_size);
if(tbl->addr_size != 0)
{
U64 segment_off = entry_off;
U64 addr_off = entry_off + tbl->segment_selector_size;
U64 segment = 0;
U64 addr = 0;
MemoryCopy(&segment, (U8 *)tbl->entries + segment_off, tbl->segment_selector_size);
MemoryCopy(&addr, (U8 *)tbl->entries + addr_off, tbl->addr_size);
// TODO(rjf): @segment_based_addressing
*out = addr;
}
else
{
MemoryCopy(out, (U8 *)tbl->entries + entry_off, entry_size);
}
result = 1;
}
return result;
src/dwarf/dwarf_parse_2.h
+2
View File
@@ -44,6 +44,8 @@ struct DW2_OffsetTable
{
DW_Format format;
DW_Version version;
U8 addr_size;
U8 segment_selector_size;
U64 entry_size;
U64 entries_count;
void *entries;