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expression parser

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This commit is contained in:
Nikita Smith
2025-10-02 18:19:42 -07:00
parent da74b8595c
commit 0e9739f964
2 changed files with 251 additions and 21 deletions
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src/dwarf/dwarf_parse.h
+40 -21
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@@ -319,6 +319,40 @@ typedef struct DW_Reference
U64 info_off;
} DW_Reference;
////////////////////////////////
//~ Expression
typedef union DW_ExprOperand
{
U8 u8;
U16 u16;
U32 u32;
U64 u64;
S8 s8;
S16 s16;
S32 s32;
S64 s64;
String8 block;
} DW_ExprOperand;
typedef struct DW_ExprInst
{
DW_ExprOp opcode;
DW_ExprOperand *operands;
U64 size;
struct DW_ExprInst *next;
struct DW_ExprInst *prev;
} DW_ExprInst;
typedef struct DW_Expr
{
U64 count;
DW_ExprInst *first;
DW_ExprInst *last;
} DW_Expr;
// hasher
internal U64 dw_hash_from_string(String8 string);
@@ -417,27 +451,8 @@ internal DW_TagNode * dw_tag_node_from_info_off(DW_CompUnit *cu, U64 info_off);
// line info
internal U64 dw_read_line_file(String8 line_data,
U64 line_off,
DW_Input *input,
DW_Version unit_version,
DW_Format unit_format,
DW_Ext ext,
U64 address_size,
DW_ListUnit *str_offsets,
U64 enc_count,
U64 *enc_arr,
DW_LineFile *line_file_out);
internal U64 dw_read_line_vm_header(Arena *arena,
String8 line_data,
U64 line_off,
DW_Input *input,
String8 cu_dir,
String8 cu_name,
U8 cu_address_size,
DW_ListUnit *cu_str_offsets,
DW_LineVMHeader *header_out);
internal U64 dw_read_line_file(String8 line_data, U64 line_off, DW_Input *input, DW_Version unit_version, DW_Format unit_format, DW_Ext ext, U64 address_size, DW_ListUnit *str_offsets, U64 enc_count, U64 *enc_arr, DW_LineFile *line_file_out);
internal U64 dw_read_line_vm_header(Arena *arena, String8 line_data, U64 line_off, DW_Input *input, String8 cu_dir, String8 cu_name, U8 cu_address_size, DW_ListUnit *cu_str_offsets, DW_LineVMHeader *header_out);
internal void dw_line_vm_reset(DW_LineVMState *state, B32 default_is_stmt);
internal void dw_line_vm_advance(DW_LineVMState *state, U64 advance, U64 min_inst_len, U64 max_ops_for_inst);
internal DW_LineSeqNode * dw_push_line_seq(Arena* arena, DW_LineTableParseResult *parsed_tbl);
@@ -451,4 +466,8 @@ internal DW_LineTableParseResult dw_parsed_line_table_from_data(Arena *arena, St
internal DW_PubStringsTable dw_v4_pub_strings_table_from_section_kind(Arena *arena, DW_Input *input, DW_SectionKind section_kind);
// expression
internal DW_Expr dw_expr_from_data(Arena *arena, DW_Format format, U64 addr_size, String8 data);
#endif // DWARF_PARSE_H