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make import lib objs with COFF obj writer

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This commit is contained in:
Nikita Smith
2025-06-25 10:53:21 -07:00
committed by Ryan Fleury
parent e580b69180
commit 3a2bb318c7
8 changed files with 352 additions and 489 deletions
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src/coff/coff.h
+15 -1
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@@ -21,6 +21,7 @@ read_only global U8 g_coff_thin_archive_sig[8] = "!<thin>\n";
#pragma pack(push, 1)
#define COFF_TimeStamp_Max max_U32
typedef U32 COFF_TimeStamp;
typedef U16 COFF_FileHeaderFlags;
@@ -135,6 +136,20 @@ enum
COFF_SectionFlag_MemPreload = (1 << 19),
COFF_SectionFlag_AlignShift = 20,
COFF_SectionFlag_AlignMask = 0xf,
COFF_SectionFlag_Align1Bytes = (COFF_SectionAlign_1Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align2Bytes = (COFF_SectionAlign_2Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align4Bytes = (COFF_SectionAlign_4Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align8Bytes = (COFF_SectionAlign_8Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align16Bytes = (COFF_SectionAlign_16Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align32Bytes = (COFF_SectionAlign_32Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align64Bytes = (COFF_SectionAlign_64Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align128Bytes = (COFF_SectionAlign_128Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align256Bytes = (COFF_SectionAlign_256Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align512Bytes = (COFF_SectionAlign_512Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align1024Bytes = (COFF_SectionAlign_1024Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align2048Bytes = (COFF_SectionAlign_2048Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align4096Bytes = (COFF_SectionAlign_4096Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_Align8192Bytes = (COFF_SectionAlign_8192Bytes << COFF_SectionFlag_AlignShift),
COFF_SectionFlag_LnkNRelocOvfl = (1 << 24),
COFF_SectionFlag_MemDiscardable = (1 << 25),
COFF_SectionFlag_MemNotCached = (1 << 26),
@@ -144,7 +159,6 @@ enum
COFF_SectionFlag_MemRead = (1 << 30),
COFF_SectionFlag_MemWrite = (1 << 31)
};
#define COFF_SectionFlags_PackAlign(f) ((f) << COFF_SectionFlag_AlignShift)
#define COFF_SectionFlags_ExtractAlign(f) (COFF_SectionAlign)(((f) >> COFF_SectionFlag_AlignShift) & COFF_SectionFlag_AlignMask)
#define COFF_SectionFlags_LnkFlags ((COFF_SectionFlag_AlignMask << COFF_SectionFlag_AlignShift) | COFF_SectionFlag_LnkCOMDAT | COFF_SectionFlag_LnkInfo | COFF_SectionFlag_LnkOther | COFF_SectionFlag_LnkRemove | COFF_SectionFlag_LnkNRelocOvfl)
src/coff/coff_obj_writer.c
+64 -12
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@@ -17,7 +17,7 @@ coff_obj_writer_release(COFF_ObjWriter **obj_writer)
}
internal COFF_ObjSymbol *
coff_obj_writer_push_symbol(COFF_ObjWriter *obj_writer, String8 name, U32 value, COFF_ObjSection *section, COFF_SymbolType type, COFF_SymStorageClass storage_class)
coff_obj_writer_push_symbol(COFF_ObjWriter *obj_writer, String8 name, U32 value, COFF_SymbolLocation loc, COFF_SymbolType type, COFF_SymStorageClass storage_class)
{
COFF_ObjSymbolNode *n = push_array(obj_writer->arena, COFF_ObjSymbolNode, 1);
SLLQueuePush(obj_writer->symbol_first, obj_writer->symbol_last, n);
@@ -26,7 +26,7 @@ coff_obj_writer_push_symbol(COFF_ObjWriter *obj_writer, String8 name, U32 value,
COFF_ObjSymbol *s = &n->v;
s->name = name;
s->value = value;
s->section = section;
s->loc = loc;
s->type = type;
s->storage_class = storage_class;
s->idx = obj_writer->symbol_count-1;
@@ -35,16 +35,41 @@ coff_obj_writer_push_symbol(COFF_ObjWriter *obj_writer, String8 name, U32 value,
}
internal COFF_ObjSymbol *
coff_obj_writer_push_symbol_static(COFF_ObjWriter *obj_writer, String8 name, U32 off, COFF_ObjSection *section)
coff_obj_writer_push_symbol_external(COFF_ObjWriter *obj_writer, String8 name, U32 value, COFF_ObjSection *section)
{
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, off, section, (COFF_SymbolType){0}, COFF_SymStorageClass_Static);
COFF_SymbolLocation loc = {0};
loc.type = COFF_SymbolLocation_Section;
loc.u.section = section;
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, value, loc, (COFF_SymbolType){0}, COFF_SymStorageClass_External);
return s;
}
internal COFF_ObjSymbol *
coff_obj_writer_push_symbol_abs(COFF_ObjWriter *obj_writer, String8 name, COFF_SymStorageClass storage_class, U32 value)
coff_obj_writer_push_symbol_static(COFF_ObjWriter *obj_writer, String8 name, U32 off, COFF_ObjSection *section)
{
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, value, 0, (COFF_SymbolType){0}, storage_class);
COFF_SymbolLocation loc = {0};
loc.type = COFF_SymbolLocation_Section;
loc.u.section = section;
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, off, loc, (COFF_SymbolType){0}, COFF_SymStorageClass_Static);
return s;
}
internal COFF_ObjSymbol *
coff_obj_writer_push_symbol_abs(COFF_ObjWriter *obj_writer, String8 name, U32 value, COFF_SymStorageClass storage_class)
{
COFF_SymbolLocation loc = {0};
loc.type = COFF_SymbolLocation_Abs;
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, value, loc, (COFF_SymbolType){0}, storage_class);
return s;
}
internal COFF_ObjSymbol *
coff_obj_writer_push_symbol_undef(COFF_ObjWriter *obj_writer, String8 name)
{
COFF_SymbolType type = {0};
COFF_SymbolLocation loc = {0};
loc.type = COFF_SymbolLocation_Undef;
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, 0, loc, type, COFF_SymStorageClass_External);
return s;
}
@@ -53,7 +78,34 @@ coff_obj_writer_push_symbol_undef_func(COFF_ObjWriter *obj_writer, String8 name)
{
COFF_SymbolType type = {0};
type.u.msb = COFF_SymDType_Func;
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, 0, 0, type, COFF_SymStorageClass_External);
COFF_SymbolLocation loc = {0};
loc.type = COFF_SymbolLocation_Undef;
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, 0, loc, type, COFF_SymStorageClass_External);
return s;
}
internal COFF_ObjSymbol *
coff_obj_writer_push_symbol_undef_sect(COFF_ObjWriter *obj_writer, String8 name, U32 value)
{
COFF_SymbolType type = {0};
COFF_SymbolLocation loc = {0};
loc.type = COFF_SymbolLocation_Undef;
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, value, loc, type, COFF_SymStorageClass_Section);
return s;
}
internal COFF_ObjSymbol *
coff_obj_writer_push_symbol_sect(COFF_ObjWriter *obj_writer, String8 name, COFF_ObjSection *sect)
{
COFF_SymbolType type = {0};
COFF_SymbolLocation loc = {0};
loc.type = COFF_SymbolLocation_Section;
loc.u.section = sect;
// strip align flags
COFF_SectionFlags expected_flags = sect->flags & ~(COFF_SectionFlag_AlignMask << COFF_SectionFlag_AlignShift);
COFF_ObjSymbol *s = coff_obj_writer_push_symbol(obj_writer, name, expected_flags, loc, type, COFF_SymStorageClass_Section);
return s;
}
@@ -67,7 +119,6 @@ coff_obj_writer_push_section(COFF_ObjWriter *obj_writer, String8 name, COFF_Sect
COFF_ObjSection *sect = &sect_n->v;
sect->name = name;
sect->flags = flags;
sect->symbol = coff_obj_writer_push_symbol_static(obj_writer, name, 0, sect);
str8_list_push(obj_writer->arena, &sect->data, data);
@@ -234,10 +285,11 @@ coff_obj_writer_serialize(Arena *arena, COFF_ObjWriter *obj_writer)
AssertAlways(s->aux_symbols.node_count <= max_U8);
d->name = name;
d->value = s->value;
if (s->section == 0) {
d->section_number = COFF_Symbol_AbsSection16;
} else {
d->section_number = safe_cast_u16(s->section->section_number);
switch (s->loc.type) {
case COFF_SymbolLocation_Null: break;
case COFF_SymbolLocation_Section: d->section_number = safe_cast_u16(s->loc.u.section->section_number); break;
case COFF_SymbolLocation_Abs: d->section_number = COFF_Symbol_AbsSection16; break;
case COFF_SymbolLocation_Undef: d->section_number = COFF_Symbol_UndefinedSection; break;
}
d->type = s->type;
d->storage_class = s->storage_class;
src/coff/coff_obj_writer.h
+18 -3
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@@ -1,11 +1,27 @@
#ifndef COFF_OBJ_WRITER_H
#define COFF_OBJ_WRITER_H
typedef enum
{
COFF_SymbolLocation_Null,
COFF_SymbolLocation_Section,
COFF_SymbolLocation_Abs,
COFF_SymbolLocation_Undef
} COFF_SymbolLocationType;
typedef struct COFF_SymbolLocation
{
COFF_SymbolLocationType type;
union {
struct COFF_ObjSection *section;
} u;
} COFF_SymbolLocation;
typedef struct COFF_ObjSymbol
{
String8 name;
U32 value;
struct COFF_ObjSection *section;
COFF_SymbolLocation loc;
COFF_SymbolType type;
COFF_SymStorageClass storage_class;
String8List aux_symbols;
@@ -36,7 +52,6 @@ typedef struct COFF_ObjSection
String8 name;
String8List data;
COFF_SectionFlags flags;
COFF_ObjSymbol *symbol;
U64 reloc_count;
COFF_ObjRelocNode *reloc_first;
@@ -71,7 +86,7 @@ typedef struct COFF_ObjWriter
internal COFF_ObjWriter* coff_obj_writer_alloc(COFF_TimeStamp time_stamp, COFF_MachineType machine_type);
internal void coff_obj_writer_release(COFF_ObjWriter **obj_writer);
internal COFF_ObjSection* coff_obj_writer_push_section(COFF_ObjWriter *obj_writer, String8 name, COFF_SectionFlags flags, String8 data);
internal COFF_ObjSymbol* coff_obj_writer_push_symbol(COFF_ObjWriter *obj_writer, String8 name, U32 value, COFF_ObjSection *section, COFF_SymbolType type, COFF_SymStorageClass storage_class);
internal COFF_ObjSymbol* coff_obj_writer_push_symbol(COFF_ObjWriter *obj_writer, String8 name, U32 value, COFF_SymbolLocation loc, COFF_SymbolType type, COFF_SymStorageClass storage_class);
internal COFF_ObjReloc* coff_obj_writer_section_push_reloc(COFF_ObjWriter *obj_writer, COFF_ObjSection *sect, U32 apply_off, COFF_ObjSymbol *symbol, COFF_RelocType reloc_type);
#endif // COFF_OBJ_WRITER_H