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

WIP DWARF expression encoder

Browse Source
This commit is contained in:
Nikita Smith
2025-12-12 17:39:56 -08:00
parent 7d0e168f8f
commit 782f87e512
7 changed files with 498 additions and 399 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/dwarf/dwarf_expr.h
+66
View File
@@ -4,6 +4,9 @@
#ifndef DWARF_EXPR_H
#define DWARF_EXPR_H
////////////////////////////////
// evaluator
typedef struct DW_ExprContext
{
Arch arch;
@@ -115,6 +118,66 @@ typedef struct DW_ExprResult
int x;
} DW_ExprResult;
////////////////////////////////
// encoder
typedef enum
{
DW_ExprEncType_Null,
DW_ExprEncType_Op,
DW_ExprEncType_U8,
DW_ExprEncType_U16,
DW_ExprEncType_U32,
DW_ExprEncType_U64,
DW_ExprEncType_S8,
DW_ExprEncType_S16,
DW_ExprEncType_S32,
DW_ExprEncType_S64,
DW_ExprEncType_ULEB128,
DW_ExprEncType_SLEB128,
DW_ExprEncType_Addr,
DW_ExprEncType_Block,
DW_ExprEncType_DwarfUInt,
DW_ExprEncType_Label,
DW_ExprEncType_DeclLabel,
} DW_ExprEncType;
typedef struct DW_ExprEnc
{
DW_ExprEncType type;
union {
DW_ExprOp op;
U8 u8;
U16 u16;
U32 u32;
U64 u64;
S8 s8;
S16 s16;
S32 s32;
S64 s64;
U64 addr;
String8 block;
char *label;
};
} DW_ExprEnc;
#define DW_ExprEnc_Op(v) { .type = DW_ExprEncType_Op, .op = DW_ExprOp_##v }
#define DW_ExprEnc_U8(v) { .type = DW_ExprEncType_U8, .u8 = v }
#define DW_ExprEnc_U16(v) { .type = DW_ExprEncType_U16, .u16 = v }
#define DW_ExprEnc_U32(v) { .type = DW_ExprEncType_U32, .u32 = v }
#define DW_ExprEnc_U64(v) { .type = DW_ExprEncType_U64, .u64 = v }
#define DW_ExprEnc_S8(v) { .type = DW_ExprEncType_S8, .s8 = v }
#define DW_ExprEnc_S16(v) { .type = DW_ExprEncType_S16, .s16 = v }
#define DW_ExprEnc_S32(v) { .type = DW_ExprEncType_S32, .s32 = v }
#define DW_ExprEnc_S64(v) { .type = DW_ExprEncType_S64, .s64 = v }
#define DW_ExprEnc_ULEB128(v) { .type = DW_ExprEncType_ULEB128, .u64 = v }
#define DW_ExprEnc_SLEB128(v) { .type = DW_ExprEncType_SLEB128, .s64 = v }
#define DW_ExprEnc_Addr(v) { .type = DW_ExprEncType_Addr, .addr = v }
#define DW_ExprEnc_Block(v) { .type = DW_ExprEncType_Block, .block = v }
#define DW_ExprEnc_UInt(v) { .type = DW_ExprEncType_DwarfUInt, .u64 = v }
#define DW_ExprEnc_Label(v) { .type = DW_ExprEncType_Label, .label = v }
#define DW_ExprEnc_DeclLabel(v) { .type = DW_ExprEncType_DeclLabel, .label = v }
////////////////////////////////
// pieces
@@ -174,5 +237,8 @@ internal String8 dw_string_from_expr_value(Arena *arena, U64 addr_size, DW_ExprV
// evaluator
internal DW_UnwindStatus dw_eval_expr(Arena *arena, DW_ExprContext *ctx, DW_Expr expr, DW_RegRead *reg_read, void *reg_read_ud, DW_ExprValue *value_out);
// encoder
internal String8 dw_encode_expr(Arena *arena, DW_Format format, U64 addr_size, DW_ExprEnc *encs, U64 encs_count);
#endif //DWARF_EXPR_H