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pass over COFF, added symbol for function definitions, updated names

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and types in structs, added enum to and from string helpers
This commit is contained in:
Nikita Smith
2024-12-06 11:53:16 -08:00
parent 53a5f6ab06
commit e22bd33275
2 changed files with 340 additions and 30 deletions
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src/coff/coff.h
+53 -27
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@@ -149,7 +149,9 @@ struct COFF_SectionHeader
COFF_SectionFlags flags;
};
typedef U16 COFF_RelocTypeX64;
typedef U16 COFF_RelocType;
typedef COFF_RelocType COFF_RelocTypeX64;
enum
{
COFF_RelocTypeX64_ABS = 0x0,
@@ -172,7 +174,7 @@ enum
COFF_RelocTypeX64_COUNT = 17
};
typedef U16 COFF_RelocTypeX86;
typedef COFF_RelocType COFF_RelocTypeX86;
enum
{
COFF_RelocTypeX86_ABS = 0x0, // relocation is ignored
@@ -198,7 +200,7 @@ enum
COFF_RelocTypeX86_COUNT = 20
};
typedef U16 COFF_RelocTypeARM;
typedef COFF_RelocType COFF_RelocTypeARM;
enum
{
COFF_RelocTypeARM_ABS = 0x0,
@@ -224,7 +226,7 @@ enum
COFF_RelocTypeARM_COUNT = 20
};
typedef U16 COFF_RelocTypeARM64;
typedef COFF_RelocType COFF_RelocTypeARM64;
enum
{
COFF_RelocTypeARM64_ABS = 0x0,
@@ -392,16 +394,16 @@ enum
typedef struct COFF_HeaderBigObj COFF_HeaderBigObj;
struct COFF_HeaderBigObj
{
U16 sig1; // COFF_MachineType_UNKNOWN
U16 sig2; // U16_MAX
U16 version;
U16 machine;
U32 time_stamp;
U8 magic[16];
U32 unused[4];
U32 section_count;
U32 pointer_to_symbol_table;
U32 number_of_symbols;
U16 sig1; // COFF_MachineType_UNKNOWN
U16 sig2; // U16_MAX
U16 version; // COFF_MIN_BIG_OBJ_VERSION
COFF_MachineType machine;
COFF_TimeStamp time_stamp;
U8 magic[16];
U32 unused[4];
U32 section_count;
U32 symbol_table_foff;
U32 symbol_count;
};
// Special values for section number field in coff symbol
@@ -422,7 +424,7 @@ union COFF_SymbolName
// and we need to use the offset to look it up...
U32 zeroes;
U32 string_table_offset;
}long_name;
} long_name;
};
#define COFF_SymbolType_IsFunc(x) ((x).u.lsb == COFF_SymType_NULL && (x).u.msb == COFF_SymDType_FUNC)
@@ -463,6 +465,16 @@ struct COFF_Symbol32
// Auxilary symbols are allocated with fixed size so that symbol table could be maintaned as array of regular size.
#define COFF_AUX_SYMBOL_SIZE 18
// storage class: EXTERNAL
typedef struct COFF_SymbolFuncDef
{
U32 tag_index;
U32 total_size;
U32 ptr_to_ln;
U32 ptr_to_next_func;
U8 unused[2];
} COFF_SymbolFuncDef;
// storage class: FUNCTION
typedef struct COFF_SymbolFunc
{
@@ -476,9 +488,9 @@ typedef struct COFF_SymbolFunc
// storage class: WEAK_EXTERNAL
typedef struct COFF_SymbolWeakExt
{
U32 tag_index;
U32 characteristics;
U8 unused[10];
U32 tag_index;
COFF_WeakExtType characteristics;
U8 unused[10];
} COFF_SymbolWeakExt;
typedef struct COFF_SymbolFile
@@ -490,14 +502,14 @@ typedef struct COFF_SymbolFile
// storage class: STATIC
typedef struct COFF_SymbolSecDef
{
U32 length;
U16 number_of_relocations;
U16 number_of_ln;
U32 check_sum;
U16 number_lo; // one-based section index
U8 selection;
U8 unused;
U16 number_hi;
U32 length;
U16 number_of_relocations;
U16 number_of_ln;
U32 check_sum;
U16 number_lo; // one-based section index
COFF_ComdatSelectType selection;
U8 unused;
U16 number_hi;
} COFF_SymbolSecDef;
// specifies how section data should be modified when placed in the image file.
@@ -827,6 +839,10 @@ internal COFF_Symbol32Array coff_symbol_array_from_data(Arena *arena, String8 d
internal COFF_Symbol16Node * coff_symbol16_list_push(Arena *arena, COFF_Symbol16List *list, COFF_Symbol16 symbol);
internal COFF_RelocInfo coff_reloc_info_from_section_header(String8 data, COFF_SectionHeader *header);
internal U64 coff_apply_size_from_reloc_x64(COFF_RelocTypeX64 x);
internal U64 coff_apply_size_from_reloc_x86(COFF_RelocTypeX86 x);
internal U64 coff_apply_size_from_reloc(COFF_MachineType machine, COFF_RelocType x);
internal U64 coff_word_size_from_machine(COFF_MachineType machine);
internal U64 coff_default_exe_base_from_machine(COFF_MachineType machine);
internal U64 coff_default_dll_base_from_machine(COFF_MachineType machine);
@@ -894,8 +910,18 @@ internal String8 coff_string_from_comdat_select_type(COFF_ComdatSelectType selec
internal String8 coff_string_from_machine_type(COFF_MachineType machine);
internal String8 coff_string_from_section_flags(Arena *arena, COFF_SectionFlags flags);
internal String8 coff_string_from_import_header_type(COFF_ImportHeaderType type);
internal String8 coff_string_from_sym_dtype(COFF_SymDType x);
internal String8 coff_string_from_sym_type(COFF_SymType x);
internal String8 coff_string_from_sym_storage_class(COFF_SymStorageClass x);
internal String8 coff_string_from_weak_ext_type(COFF_WeakExtType x);
internal String8 coff_string_from_selection(COFF_ComdatSelectType x);
internal String8 coff_string_from_reloc_x86(COFF_RelocTypeX86 x);
internal String8 coff_string_from_reloc_x64(COFF_RelocTypeX64 x);
internal String8 coff_string_from_reloc_arm(COFF_RelocTypeARM x);
internal String8 coff_string_from_reloc_arm64(COFF_RelocTypeARM64 x);
internal String8 coff_string_from_reloc(COFF_MachineType machine, COFF_RelocType x);
internal COFF_MachineType coff_machine_from_string(String8 string);
internal COFF_MachineType coff_machine_from_string(String8 string);
internal COFF_ImportHeaderType coff_import_header_type_from_string(String8 name);
#endif //COFF_H