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changed symbol table parser to convert symbols as they are being read

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This commit is contained in:
Nikita Smith
2024-11-21 19:42:39 -08:00
parent a0dbe72820
commit 19fac9b1aa
4 changed files with 145 additions and 129 deletions
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src/coff/coff.c
+7 -7
View File
@@ -170,24 +170,24 @@ coff_section_flag_from_align_size(U64 align)
}
internal COFF_SymbolValueInterpType
coff_interp_symbol(COFF_Symbol32 *symbol)
coff_interp_symbol(U32 section_number, U32 value, COFF_SymStorageClass storage_class)
{
if (symbol->storage_class == COFF_SymStorageClass_SECTION && symbol->section_number == COFF_SYMBOL_UNDEFINED_SECTION) {
if (storage_class == COFF_SymStorageClass_SECTION && section_number == COFF_SYMBOL_UNDEFINED_SECTION) {
return COFF_SymbolValueInterp_UNDEFINED;
}
if (symbol->storage_class == COFF_SymStorageClass_EXTERNAL && symbol->value == 0 && symbol->section_number == COFF_SYMBOL_UNDEFINED_SECTION) {
if (storage_class == COFF_SymStorageClass_EXTERNAL && value == 0 && section_number == COFF_SYMBOL_UNDEFINED_SECTION) {
return COFF_SymbolValueInterp_UNDEFINED;
}
if (symbol->storage_class == COFF_SymStorageClass_EXTERNAL && symbol->value != 0 && symbol->section_number == COFF_SYMBOL_UNDEFINED_SECTION) {
if (storage_class == COFF_SymStorageClass_EXTERNAL && value != 0 && section_number == COFF_SYMBOL_UNDEFINED_SECTION) {
return COFF_SymbolValueInterp_COMMON;
}
if (symbol->section_number == COFF_SYMBOL_ABS_SECTION) {
if (section_number == COFF_SYMBOL_ABS_SECTION) {
return COFF_SymbolValueInterp_ABS;
}
if (symbol->section_number == COFF_SYMBOL_DEBUG_SECTION) {
if (section_number == COFF_SYMBOL_DEBUG_SECTION) {
return COFF_SymbolValueInterp_DEBUG;
}
if (symbol->storage_class == COFF_SymStorageClass_WEAK_EXTERNAL) {
if (storage_class == COFF_SymStorageClass_WEAK_EXTERNAL) {
return COFF_SymbolValueInterp_WEAK;
}
return COFF_SymbolValueInterp_REGULAR;
src/coff/coff.h
+24 -27
View File
@@ -425,42 +425,39 @@ union COFF_SymbolName
}long_name;
};
#define COFF_SymbolType_IsFunc(x) ((x).u.lsb == COFF_SymType_NULL && (x).u.msb == COFF_SymDType_FUNC)
typedef union COFF_SymbolType COFF_SymbolType;
union COFF_SymbolType
{
struct
{
COFF_SymDType msb;
COFF_SymType lsb;
} u;
U16 v;
};
typedef struct COFF_Symbol16 COFF_Symbol16;
struct COFF_Symbol16
{
COFF_SymbolName name;
U32 value;
U16 section_number;
union
{
struct
{
COFF_SymDType msb;
COFF_SymType lsb;
}u;
U16 v;
}type;
COFF_SymbolName name;
U32 value;
U16 section_number;
COFF_SymbolType type;
COFF_SymStorageClass storage_class;
U8 aux_symbol_count;
U8 aux_symbol_count;
};
typedef struct COFF_Symbol32 COFF_Symbol32;
struct COFF_Symbol32
{
COFF_SymbolName name;
U32 value;
U32 section_number;
union
{
struct
{
COFF_SymDType msb;
COFF_SymType lsb;
}u;
U16 v;
}type;
COFF_SymbolName name;
U32 value;
U32 section_number;
COFF_SymbolType type;
COFF_SymStorageClass storage_class;
U8 aux_symbol_count;
U8 aux_symbol_count;
};
// Auxilary symbols are allocated with fixed size so that symbol table could be maintaned as array of regular size.
@@ -815,7 +812,7 @@ internal B32 coff_is_obj(String8 data);
internal COFF_HeaderInfo coff_header_info_from_data(String8 data);
internal U64 coff_align_size_from_section_flags(COFF_SectionFlags flags);
internal COFF_SectionFlags coff_section_flag_from_align_size(U64 align);
internal COFF_SymbolValueInterpType coff_interp_symbol(COFF_Symbol32 *symbol);
internal COFF_SymbolValueInterpType coff_interp_symbol(U32 section_number, U32 value, COFF_SymStorageClass storage_class);
internal U64 coff_foff_from_voff(COFF_SectionHeader *sections, U64 section_count, U64 voff);
internal COFF_SectionHeader *coff_section_header_from_num(String8 data, U64 section_headers_off, U64 n);