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linker checkpoint

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This commit is contained in:
Nikita Smith
2025-06-25 10:53:22 -07:00
committed by Ryan Fleury
parent a60216fa9f
commit 7c071e7238
74 changed files with 3940 additions and 6441 deletions
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src/linker/lnk_section_table.h
+81 -105
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@@ -1,43 +1,84 @@
// Copyright (c) 2024 Epic Games Tools
// Copyright (c) 2025 Epic Games Tools
// Licensed under the MIT license (https://opensource.org/license/mit/)
#pragma once
typedef struct LNK_SectionContrib
{
U16 align;
union {
String8Node *data_list;
U64 bss_size;
};
union {
struct {
U16 sort_idx_size;
U32 obj_idx;
U8 *sort_idx;
};
struct {
U16 sect_idx;
U32 off;
U32 size;
};
} u;
} LNK_SectionContrib;
typedef struct LNK_CommonBlockContrib
{
struct LNK_Symbol *symbol;
union {
U32 size;
U32 offset;
} u;
} LNK_CommonBlockContrib;
typedef struct LNK_SectionContribChunk
{
struct LNK_SectionContribChunk *next;
U64 count;
U64 cap;
LNK_SectionContrib *v;
} LNK_SectionContribChunk;
typedef struct LNK_SectionContribChunkList
{
U64 chunk_count;
LNK_SectionContribChunk *first;
LNK_SectionContribChunk *last;
} LNK_SectionContribChunkList;
typedef struct LNK_SectionDefinition
{
String8 name;
COFF_SectionFlags flags;
U64 contribs_count;
struct LNK_Obj *obj;
U64 obj_sect_idx;
} LNK_SectionDefinition;
typedef struct LNK_Section
{
Arena *arena;
U64 id;
String8 name;
String8 symbol_name;
COFF_SectionFlags flags;
String8 sort_index;
Arena *arena;
U64 id;
String8 name;
COFF_SectionFlags flags;
B32 has_layout;
B32 is_merged;
LNK_ChunkManager *cman;
LNK_Chunk *root;
LNK_SectionContribChunkList contribs;
// overwhelming number of chunks don't have sort index and grouping
// them speeds up sort step
LNK_Chunk *nosort_chunk;
LNK_RelocList reloc_list;
B32 emit_header; // TODO: this is a hack to make reloc serializer work in resource converter
B32 has_layout;
B32 is_loose;
B32 is_merged;
U64 merge_sect_id;
U64 *id_map;
U64 isect;
U64 virt_off;
U64 file_off;
LNK_ChunkLayout layout;
U64 voff;
U64 vsize;
U64 fsize;
U64 foff;
U64 sect_idx;
} LNK_Section;
typedef struct LNK_SectionNode
{
struct LNK_SectionNode *next;
struct LNK_SectionNode *prev;
LNK_Section data;
} LNK_SectionNode;
@@ -49,103 +90,38 @@ typedef struct LNK_SectionList
} LNK_SectionList;
typedef struct LNK_SectionArray
{
U64 count;
LNK_Section *v;
} LNK_SectionArray;
typedef struct LNK_SectionPtrArray
{
U64 count;
LNK_Section **v;
} LNK_SectionPtrArray;
} LNK_SectionArray;
typedef struct LNK_SectionTable
{
Arena *arena;
U64 section_virt_off;
U64 sect_align;
U64 file_align;
U64 id_max;
U64 next_sect_idx;
LNK_SectionList list;
LNK_SectionList merge_list;
LNK_SectionList empties_list;
LNK_SectionNode *null_sect;
LNK_SectionList free_list;
HashTable *sect_ht; // name -> LNK_Section *
} LNK_SectionTable;
////////////////////////////////
typedef struct
{
COFF_MachineType machine;
Rng1U64 *range_arr;
LNK_Section **sect_arr;
} LNK_SectionDataBuilder;
internal U8 lnk_code_align_byte_from_machine(COFF_MachineType machine);
internal U16 lnk_default_align_from_machine(COFF_MachineType machine);
////////////////////////////////
internal LNK_SectionNode * lnk_section_list_remove(LNK_SectionList *list, String8 name);
internal LNK_SectionNode * lnk_section_list_search_node(LNK_SectionList *list, String8 name);
internal LNK_Section * lnk_section_list_search(LNK_SectionList *list, String8 name);
internal void lnk_section_list_remove(LNK_SectionList *list, LNK_SectionNode *node);
internal LNK_SectionArray lnk_section_array_from_list(Arena *arena, LNK_SectionList list);
internal LNK_SectionArray lnk_section_array_from_list(Arena *arena, LNK_SectionList list);
internal LNK_SectionPtrArray lnk_section_ptr_array_from_list(Arena *arena, LNK_SectionList list);
////////////////////////////////
internal void lnk_section_associate_chunks(LNK_Section *sect, LNK_Chunk *head, LNK_Chunk *associate);
internal LNK_Reloc * lnk_section_push_reloc(LNK_Section *sect, LNK_Chunk *chunk, LNK_RelocType type, U64 apply_off, LNK_Symbol *symbol);
internal LNK_Reloc * lnk_section_push_reloc_undefined(LNK_Section *sect, LNK_Chunk *chunk, LNK_RelocType type, U64 apply_off, String8 undefined_symbol_name, LNK_SymbolScopeFlags scope_flags);
internal void lnk_section_merge(LNK_Section *dst, LNK_Section *src);
internal void lnk_section_build_data(LNK_Section *sect, COFF_MachineType machine);
internal String8 lnk_make_section_sort_index(Arena *arena, String8 name, COFF_SectionFlags flags, U64 section_index);
internal LNK_Chunk * lnk_section_push_chunk_raw(LNK_Section *sect, LNK_Chunk *parent, void *data_ptr, U64 data_size, String8 sort_index);
internal LNK_Chunk * lnk_section_push_chunk_data(LNK_Section *sect, LNK_Chunk *parent, String8 data, String8 sort_index);
internal LNK_Chunk * lnk_section_push_chunk_u32(LNK_Section *sect, LNK_Chunk *parent, U32 value, String8 sort_index);
internal LNK_Chunk * lnk_section_push_chunk_u64(LNK_Section *sect, LNK_Chunk *parent, U32 value, String8 sort_index);
internal LNK_Chunk * lnk_section_push_chunk_bss(LNK_Section *sect, LNK_Chunk *parent, U64 size, String8 sort_index);
internal LNK_Chunk * lnk_section_push_chunk_list(LNK_Section *sect, LNK_Chunk *parent, String8 sort_index);
internal LNK_SectionTable * lnk_section_table_alloc(U64 section_virt_off, U64 sect_align, U64 file_align);
internal LNK_SectionTable * lnk_section_table_alloc(void);
internal void lnk_section_table_release(LNK_SectionTable **st_ptr);
internal LNK_Section * lnk_section_table_push(LNK_SectionTable *sectab, String8 name, COFF_SectionFlags flags);
internal LNK_Section * lnk_section_table_push_null(LNK_SectionTable *sectab);
internal void lnk_section_table_remove(LNK_SectionTable *sectab, LNK_SymbolTable *symtab, String8 name);
internal LNK_Section * lnk_section_table_search(LNK_SectionTable *sectab, String8 name);
internal LNK_Section * lnk_section_table_search_id(LNK_SectionTable *sectab, U64 id);
internal void lnk_section_table_remove(LNK_SectionTable *sectab, String8 name);
internal LNK_Section * lnk_section_table_search(LNK_SectionTable *sectab, String8 name, COFF_SectionFlags flags);
internal void lnk_section_table_merge(LNK_SectionTable *sectab, LNK_MergeDirectiveList merge_list);
internal void lnk_section_table_remove_empties(LNK_SectionTable *sectab, LNK_SymbolTable *symtab);
internal void lnk_section_table_build_data(TP_Context *tp, LNK_SectionTable *sectab, COFF_MachineType machine);
internal void lnk_section_table_assign_virtual_offsets(LNK_SectionTable *sectab);
internal void lnk_section_table_assign_file_offsets(LNK_SectionTable *sectab);
internal void lnk_section_table_assign_indices(LNK_SectionTable *sectab);
internal String8 lnk_section_table_serialize(TP_Context *tp, Arena *arena, LNK_SectionTable *sectab, COFF_MachineType machine);
internal LNK_ChunkPtr ** lnk_chunk_id_map_from_section_table(Arena *arena, LNK_SectionTable *sectab);
internal LNK_Section ** lnk_sect_id_map_from_section_table(Arena *arena, LNK_SectionTable *sectab);
internal LNK_ChunkRef lnk_get_final_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal LNK_Section * lnk_sect_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal LNK_Chunk * lnk_chunk_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkPtr **chunk_id_map, LNK_ChunkRef chunk_ref);
internal U64 lnk_isect_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal U64 lnk_off_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal U64 lnk_virt_off_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal U64 lnk_file_off_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal U64 lnk_virt_size_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal U64 lnk_file_size_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal String8 lnk_data_from_chunk_ref(LNK_Section **sect_id_map, String8 image_data, LNK_ChunkRef chunk_ref);
internal String8 lnk_data_from_chunk_ref_no_pad(LNK_Section **sect_id_map, String8 image_data, LNK_ChunkRef chunk_ref);
internal ISectOff lnk_sc_from_chunk_ref(LNK_Section **sect_id_map, LNK_ChunkRef chunk_ref);
internal U64 lnk_virt_off_from_reloc(LNK_Section **sect_id_map, LNK_Reloc *reloc);
internal U64 lnk_isect_from_symbol(LNK_Section **sect_id_map, LNK_Symbol *symbol);
internal U64 lnk_sect_off_from_symbol(LNK_Section **sect_id_map, LNK_Symbol *symbol);
internal U64 lnk_virt_off_from_symbol(LNK_Section **sect_id_map, LNK_Symbol *symbol);
internal U64 lnk_file_off_from_symbol(LNK_Section **sect_id_map, LNK_Symbol *symbol);
internal U64 lnk_virt_size_from_symbol(LNK_Section **sect_id_map, LNK_Symbol *symbol);
internal U64 lnk_file_size_from_symbol(LNK_Section **sect_id_map, LNK_Symbol *symbol);
#if LNK_DEBUG_CHUNKS
internal void lnk_dump_chunks(LNK_SectionTable *sectab);
#endif
internal LNK_SectionArray lnk_section_table_get_output_sections(Arena *arena, LNK_SectionTable *sectab);