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pass over .debug_abbrev dump

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This commit is contained in:
Ryan Fleury
2025-06-19 10:41:42 -07:00
parent 7c35028a6b
commit 8eab0e16b8
2 changed files with 40 additions and 59 deletions
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src/dwarf/dwarf_dump.c
+40 -58
View File
@@ -625,63 +625,6 @@ dw_print_eh_frame(Arena *arena, String8List *out, String8 indent, String8 raw_eh
scratch_end(scratch);
}
internal void
dw_print_debug_abbrev(Arena *arena, String8List *out, String8 indent, DW_Input *input)
{
Temp scratch = scratch_begin(&arena, 1);
DW_Section abbrev = input->sec[DW_Section_Abbrev];
String8 raw_abbrev = abbrev.data;
if (raw_abbrev.size) {
rd_printf("# %S", input->sec[DW_Section_Abbrev].name);
rd_indent();
}
for (U64 cursor = 0; cursor < raw_abbrev.size; ) {
U64 id_off = cursor;
U64 id = 0;
cursor += str8_deserial_read_uleb128(raw_abbrev, cursor, &id);
if (id == 0) {
continue; // end of abbrev data for CU
}
Temp temp = temp_begin(scratch.arena);
U64 tag = 0;
U8 has_children = 0;
cursor += str8_deserial_read_uleb128(raw_abbrev, cursor, &tag);
cursor += str8_deserial_read_struct(raw_abbrev, cursor, &has_children);
rd_printf("<%llx> %llu DW_TagKind_%S %s", id_off, id, dw_string_from_tag_kind(temp.arena, tag), has_children ? "[has children]" : "[no children]");
rd_indent();
for (;;) {
U64 attrib_off = cursor;
U64 attrib_id = 0, form_id = 0;
cursor += str8_deserial_read_uleb128(raw_abbrev, cursor, &attrib_id);
cursor += str8_deserial_read_uleb128(raw_abbrev, cursor, &form_id);
if (attrib_id == 0) {
break;
}
String8 attrib_str = dw_string_from_attrib_kind(temp.arena, DW_Version_Last, DW_Ext_All, attrib_id);
String8 form_str = dw_string_from_form_kind(temp.arena, DW_Version_Last, form_id);
rd_printf("<%llx> DW_AttribKind_%-20S DW_Form_%S", attrib_off, attrib_str, form_str);
}
rd_unindent();
temp_end(temp);
}
if (raw_abbrev.size) {
rd_unindent();
}
scratch_end(scratch);
}
internal void
dw_print_debug_line(Arena *arena, String8List *out, String8 indent, DW_Input *input, DW_ListUnitInput lu_input, B32 relaxed)
{
@@ -2114,7 +2057,46 @@ dw_dump_list_from_sections(Arena *arena, DW_Input *input, Arch arch, ExecutableI
//
DumpSubset(DebugAbbrev)
{
// dw_print_debug_abbrev(arena, out, indent, input);
Temp scratch = scratch_begin(&arena, 1);
DW_Section abbrev = input->sec[DW_Section_Abbrev];
S64 depth = 0;
U64 idx = 0;
for(U64 cursor = 0; cursor < abbrev.data.size; idx += 1)
{
// rjf: read id & advance
U64 id_off = cursor;
U64 id = 0;
cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &id);
if(id == 0) { continue; }
// rjf: unpack abbrev
U64 tag = 0;
U8 has_children = 0;
cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &tag);
cursor += str8_deserial_read_struct(abbrev.data, cursor, &has_children);
// rjf: log abbrev
Temp temp = temp_begin(scratch.arena);
dumpf("abbrev: // abbrev[%I64u]\n{\n", idx);
dumpf(" offset: 0x%I64x\n", id_off);
dumpf(" id: %I64u\n", id);
dumpf(" tag_kind: %S\n", dw_string_from_tag_kind(temp.arena, tag));
dumpf(" has_children: %s\n", has_children ? "true" : "false");
for(;;)
{
U64 attrib_off = cursor;
U64 attrib_id = 0, form_id = 0;
cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &attrib_id);
cursor += str8_deserial_read_uleb128(abbrev.data, cursor, &form_id);
if(attrib_id == 0) { break; }
String8 attrib_str = dw_string_from_attrib_kind(temp.arena, DW_Version_Last, DW_Ext_All, attrib_id);
String8 form_str = dw_string_from_form_kind(temp.arena, DW_Version_Last, form_id);
rd_printf(" attrib: { offset: 0x%I64x, kind: %S, form_kind: %S }\n", attrib_off, attrib_str, form_str);
}
dumpf("}\n");
temp_end(temp);
}
scratch_end(scratch);
}
//////////////////////////////
src/dwarf/dwarf_dump.h
-1
View File
@@ -58,7 +58,6 @@ internal String8 dw_format_eh_ptr_enc (Arena *arena, DW_EhPtrEnc
internal void dw_print_cfi_program (Arena *arena, String8List *out, String8 indent, String8 raw_data, DW_CIEUnpacked *cie, DW_EhPtrCtx *ptr_ctx, Arch arch, DW_Version ver, DW_Ext ext, DW_Format format);
internal void dw_print_eh_frame (Arena *arena, String8List *out, String8 indent, String8 raw_eh_frame, Arch arch, DW_Version ver, DW_Ext ext, DW_EhPtrCtx *ptr_ctx);
internal void dw_print_debug_abbrev (Arena *arena, String8List *out, String8 indent, DW_Input *input);
internal void dw_print_debug_line (Arena *arena, String8List *out, String8 indent, DW_Input *input, DW_ListUnitInput lu_input, B32 relaxed);
internal void dw_print_debug_str (Arena *arena, String8List *out, String8 indent, DW_Input *input);
internal void dw_print_debug_loc (Arena *arena, String8List *out, String8 indent, DW_Input *input, Arch arch, ExecutableImageKind image_type, B32 relaxed);