ed/raddebugger
1
0
Fork 0
mirror of https://github.com/Ed94/raddebugger.git synced 2026-10-07 08:25:41 +00:00
Code Issues Packages Projects Releases Wiki Activity

simplified dwarf parsing checkpoint: pull out form value reading, line table header parsing

Browse Source
This commit is contained in:
Ryan Fleury
2025-11-11 16:27:16 -08:00
parent b8a8ec31c7
commit faee02f763
3 changed files with 536 additions and 160 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/dwarf/dwarf_parse_2.h
+80 -8
View File
@@ -37,23 +37,27 @@ struct DW2_AbbrevMap
};
////////////////////////////////
//~ rjf: Tag Parsing Context
//~ rjf: Parsing Context Bundle
typedef struct DW2_TagParseCtx DW2_TagParseCtx;
struct DW2_TagParseCtx
typedef struct DW2_ParseCtx DW2_ParseCtx;
struct DW2_ParseCtx
{
DW_Raw *raw;
// NOTE(rjf): all subsequent fields optional - top-level code fills out whatever
// it can from context.
DW_Version version;
DW_Format format;
U64 addr_size;
String8 abbrev_data;
DW2_AbbrevMap *abbrev_map;
String8 unit_dir;
String8 unit_file;
};
////////////////////////////////
//~ rjf: Tag Attributes
typedef struct DW2_AttribVal DW2_AttribVal;
struct DW2_AttribVal
typedef struct DW2_FormVal DW2_FormVal;
struct DW2_FormVal
{
DW_SectionKind section_kind;
U128 u128;
@@ -64,7 +68,7 @@ struct DW2_Attrib
{
DW_AttribKind attrib_kind;
DW_FormKind form_kind;
DW2_AttribVal val;
DW2_FormVal val;
};
typedef struct DW2_AttribNode DW2_AttribNode;
@@ -93,6 +97,63 @@ struct DW2_Tag
DW2_AttribList attribs;
};
////////////////////////////////
//~ rjf: Line Info
typedef struct DW2_LineTableFile DW2_LineTableFile;
struct DW2_LineTableFile
{
String8 file_name;
U64 dir_idx;
U64 modify_time;
U64 file_size;
MD5 md5;
String8 source;
};
typedef struct DW2_LineTableFileNode DW2_LineTableFileNode;
struct DW2_LineTableFileNode
{
DW2_LineTableFileNode *next;
DW2_LineTableFile v;
};
typedef struct DW2_LineTableFileList DW2_LineTableFileList;
struct DW2_LineTableFileList
{
DW2_LineTableFileNode *first;
DW2_LineTableFileNode *last;
U64 count;
};
typedef struct DW2_LineTableFileArray DW2_LineTableFileArray;
struct DW2_LineTableFileArray
{
DW2_LineTableFile *v;
U64 count;
};
typedef struct DW2_LineTableHeader DW2_LineTableHeader;
struct DW2_LineTableHeader
{
U64 unit_length;
DW_Format format;
DW_Version version;
U8 addr_size;
U8 segment_selector_size;
U64 header_length;
U8 min_inst_length;
U8 max_ops_per_inst;
U8 default_is_stmt;
S8 line_base;
U8 line_range;
U8 opcode_base;
U64 opcode_lengths_count;
U8 *opcode_lengths;
DW2_LineTableFileArray dirs;
DW2_LineTableFileArray files;
};
////////////////////////////////
//~ rjf: Basic Parsing Helpers
@@ -109,9 +170,20 @@ internal U64 dw2_read_unit_header(String8 data, U64 off, DW2_UnitHeader *out);
internal DW2_AbbrevMap dw2_abbrev_map_from_data(Arena *arena, String8 data, U64 off);
////////////////////////////////
//~ rjf: Form Value Parsing
internal U64 dw2_read_form_val(DW2_ParseCtx *ctx, String8 data, U64 off, DW_FormKind form_kind, U64 implicit_const, DW2_FormVal *out);
internal String8 dw2_string_from_form_val(DW2_ParseCtx *ctx, DW2_FormVal val);
////////////////////////////////
//~ rjf: Tag Parsing
internal U64 dw2_read_tag(Arena *arena, DW2_TagParseCtx *ctx, String8 data, U64 off, DW2_Tag *tag_out);
internal U64 dw2_read_tag(Arena *arena, DW2_ParseCtx *ctx, String8 data, U64 off, DW2_Tag *tag_out);
////////////////////////////////
//~ rjf: Line Table Parsing
internal U64 dw2_read_line_table_header(Arena *arena, DW2_ParseCtx *ctx, String8 data, U64 off, DW2_LineTableHeader *out);
#endif // DWARF_PARSE_2_H