From 0aadf60359d4e69f14dc27e30e3eb0c4ff383d18 Mon Sep 17 00:00:00 2001
From: Nikita Smith <git.nikita.smith@gmail.com>
Date: Thu, 19 Jun 2025 15:26:40 -0700
Subject: [PATCH] update code block dividers

---
 src/linker/lnk.c              | 27 +++--------
 src/linker/lnk_debug_info.c   | 16 ------
 src/linker/lnk_debug_info.h   | 27 +++++------
 src/linker/lnk_io.c           | 18 +++----
 src/linker/lnk_io.h           |  9 +---
 src/linker/lnk_lib.h          |  4 --
 src/linker/lnk_symbol_table.c | 91 ++++++++++++++++-------------------
 src/linker/lnk_symbol_table.h | 35 +++++---------
 8 files changed, 79 insertions(+), 148 deletions(-)

diff --git a/src/linker/lnk.c b/src/linker/lnk.c
index bc70f354..aa95ce58 100644
--- a/src/linker/lnk.c
+++ b/src/linker/lnk.c
@@ -1,18 +1,16 @@
 // Copyright (c) 2025 Epic Games Tools
 // Licensed under the MIT license (https://opensource.org/license/mit/)
 
-////////////////////////////////
-// Build Options
+// --- Build Options -----------------------------------------------------------
 
 #define BUILD_CONSOLE_INTERFACE 1
 #define BUILD_TITLE "Epic Games Tools (R) RAD PE/COFF Linker"
 
-////////////////////////////////
+// --- Arena -------------------------------------------------------------------
 
 #define ARENA_FREE_LIST 1
 
-////////////////////////////////
-// Third Party
+// --- Third Party -------------------------------------------------------------
 
 #include "base_ext/base_blake3.h"
 #include "base_ext/base_blake3.c"
@@ -22,8 +20,7 @@
 #include "third_party/xxHash/xxhash.h"
 #include "third_party/radsort/radsort.h"
 
-////////////////////////////////
-// Code Base
+// --- Code Base ---------------------------------------------------------------
 
 #if defined(__clang__)
 # pragma clang diagnostic push
@@ -78,8 +75,7 @@
 # pragma clang diagnostic pop
 #endif
 
-////////////////////////////////
-// RDI
+// --- RDI ---------------------------------------------------------------------
 
 #include "rdi/rdi_overrides.h"
 #include "lib_rdi_format/rdi_format.h"
@@ -87,8 +83,7 @@
 #include "lib_rdi_format/rdi_format.c"
 #include "rdi/rdi.c"
 
-////////////////////////////////
-// Code Base Extensions
+// --- Code Base Extensions ----------------------------------------------------
 
 #include "base_ext/base_inc.h"
 #include "thread_pool/thread_pool.h"
@@ -106,8 +101,7 @@
 #include "pdb_ext/pdb_helpers.c"
 #include "pdb_ext/pdb_builder.c"
 
-////////////////////////////////
-// RDI Builder
+// --- RDI Builder -------------------------------------------------------------
 
 #include "rdi/rdi_builder.h"
 #include "rdi/rdi_coff.h" 
@@ -117,8 +111,7 @@
 #include "rdi/rdi_coff.c"
 #include "rdi/rdi_cv.c"
 
-////////////////////////////////
-// Linker
+// --- Linker ------------------------------------------------------------------
 
 #include "lnk_error.h"
 #include "lnk_log.h"
@@ -149,12 +142,8 @@
 #include "lnk_lib.c"
 #include "lnk_debug_info.c"
 
-////////////////////////////////
-
 global read_only LNK_SectionContrib g_null_sc;
 
-////////////////////////////////
-
 internal LNK_Config *
 lnk_config_from_argcv(Arena *arena, int argc, char **argv)
 {
diff --git a/src/linker/lnk_debug_info.c b/src/linker/lnk_debug_info.c
index ec930b22..f19dff44 100644
--- a/src/linker/lnk_debug_info.c
+++ b/src/linker/lnk_debug_info.c
@@ -1,8 +1,6 @@
 // Copyright (c) 2025 Epic Games Tools
 // Licensed under the MIT license (https://opensource.org/license/mit/)
 
-////////////////////////////////
-
 internal
 THREAD_POOL_TASK_FUNC(lnk_parse_debug_s_task)
 {
@@ -802,10 +800,6 @@ lnk_make_code_view_input(TP_Context *tp, TP_Arena *tp_arena, LNK_IO_Flags io_fla
   return cv;
 }
 
-////////////////////////////////
-// Leaf Deduper
-
-
 internal LNK_LeafRef
 lnk_leaf_ref(U32 enc_loc_idx, U32 enc_leaf_idx)
 {
@@ -1451,8 +1445,6 @@ lnk_leaf_hash_table_search(LNK_LeafHashTable *ht, LNK_CodeViewInput *input, LNK_
   return match;
 }
 
-////////////////////////////////
-
 internal
 THREAD_POOL_TASK_FUNC(lnk_count_per_source_leaf_task)
 {
@@ -2674,9 +2666,6 @@ lnk_replace_type_names_with_hashes(TP_Context *tp, TP_Arena *arena, CV_DebugT de
   ProfEnd();
 }
 
-////////////////////////////////
-// PDB Builder
-
 internal
 THREAD_POOL_TASK_FUNC(lnk_filter_out_gsi_symbols_task)
 {
@@ -3034,8 +3023,6 @@ THREAD_POOL_TASK_FUNC(lnk_push_dbi_sec_contrib_task)
   }
 }
 
-////////////////////////////////
-
 internal
 THREAD_POOL_TASK_FUNC(lnk_build_pdb_public_symbols_defined_task)
 {
@@ -3369,9 +3356,6 @@ lnk_build_pdb(TP_Context               *tp,
   return page_data_list;
 }
 
-////////////////////////////////
-// RAD Debug Info
-
 internal U64
 lnk_udt_name_hash_table_hash(String8 string)
 {
diff --git a/src/linker/lnk_debug_info.h b/src/linker/lnk_debug_info.h
index 43e208be..36ff5923 100644
--- a/src/linker/lnk_debug_info.h
+++ b/src/linker/lnk_debug_info.h
@@ -3,7 +3,7 @@
 
 #pragma once
 
-////////////////////////////////
+// --- Code View Input ---------------------------------------------------------
 
 typedef struct LNK_PchInfo
 {
@@ -60,7 +60,7 @@ typedef struct LNK_CodeViewInput
   Rng1U64                    external_obj_range;
 } LNK_CodeViewInput;
 
-////////////////////////////////
+// --- Leaf Ref ----------------------------------------------------------------
 
 typedef enum
 {
@@ -118,7 +118,7 @@ typedef union
   U128Array **v[CV_TypeIndexSource_COUNT];
 } LNK_LeafHashes;
 
-////////////////////////////////
+// --- Symbol Parsing Tasks ----------------------------------------------------
 
 typedef struct
 {
@@ -155,7 +155,7 @@ typedef struct
   B8                 *is_corrupted;
 } LNK_GetExternalLeavesTask;
 
-////////////////////////////////
+// --- Leaf Deduping Tasks -----------------------------------------------------
 
 typedef struct
 {
@@ -261,7 +261,7 @@ typedef struct
   Arena             **fixed_arena_arr;
 } LNK_PatchLeavesTask;
 
-////////////////////////////////
+// --- Code View Processing Trasks ---------------------------------------------
 
 typedef struct
 {
@@ -378,8 +378,7 @@ typedef struct
   String8List *maps;
 } LNK_TypeNameReplacer;
 
-////////////////////////////////
-// RAD Debug Info
+// --- RAD Debug Info ----------------------------------------------------------
 
 typedef struct
 {
@@ -405,7 +404,7 @@ typedef struct
   CV_TypeIndex       *fwdmap;
 } LNK_BuildUDTFwdMapTask;
 
-////////////////////////////////
+// --- RDI Conversion Tasks ----------------------------------------------------
 
 typedef struct
 {
@@ -492,8 +491,7 @@ typedef struct
   RDIB_LineTableChunkList  *line_tables;
 } LNK_ConvertUnitToRDITask;
 
-////////////////////////////////
-// CodeView
+// --- CodeView ----------------------------------------------------------------
 
 internal CV_DebugS *       lnk_parse_debug_s_sections(TP_Context *tp, TP_Arena *arena, U64 obj_count, LNK_Obj **obj_arr, String8List *sect_list_arr);
 internal CV_DebugT *       lnk_parse_debug_t_sections(TP_Context *tp, TP_Arena *arena, U64 obj_count, LNK_Obj **obj_arr, String8List *debug_t_list_arr);
@@ -536,8 +534,7 @@ internal CV_DebugT *         lnk_import_types(TP_Context *tp, TP_Arena *tp_temp,
 
 internal void lnk_replace_type_names_with_hashes(TP_Context *tp, TP_Arena *arena, CV_DebugT debug_t, LNK_TypeNameHashMode mode, U64 hash_length, String8 map_name);
 
-////////////////////////////////
-// RAD Debug info
+// --- RAD Debug info ----------------------------------------------------------
 
 internal U64                  lnk_udt_name_hash_table_hash(String8 string);
 internal LNK_UDTNameBucket ** lnk_udt_name_hash_table_from_debug_t(TP_Context *tp, TP_Arena *arena, CV_DebugT debug_t, U64 *buckets_cap_out);
@@ -563,8 +560,7 @@ internal String8List lnk_build_rad_debug_info(TP_Context               *tp,
                                               CV_SymbolListArray       *parsed_symbols,
                                               CV_DebugT                 types[CV_TypeIndexSource_COUNT]);
 
-////////////////////////////////
-// PDB
+// --- PDB ---------------------------------------------------------------------
 
 internal LNK_ProcessedCodeViewC11Data lnk_process_c11_data(TP_Context *tp, TP_Arena *arena, U64 obj_count, CV_DebugS *debug_s_arr, U64 string_data_base_offset, CV_StringHashTable string_ht, MSF_Context *msf, PDB_DbiModule **mod_arr);
 internal LNK_ProcessedCodeViewC13Data lnk_process_c13_data(TP_Context *tp, TP_Arena *arena, U64 obj_count, CV_DebugS *debug_s_arr, U64 string_data_base_offset, CV_StringHashTable string_ht, MSF_Context *msf, PDB_DbiModule **mod_arr);
@@ -586,8 +582,7 @@ internal String8List lnk_build_pdb(TP_Context               *tp,
                                    CV_SymbolListArray       *parsed_symbols,
                                    CV_DebugT                 types[CV_TypeIndexSource_COUNT]);
 
-////////////////////////////////
-// RAD Debug Info
+// --- RAD Debug Info ----------------------------------------------------------
 
 internal U64                  lnk_udt_name_hash_table_hash(String8 string);
 internal LNK_UDTNameBucket ** lnk_udt_name_hash_table_from_debug_t(TP_Context *tp, TP_Arena *arena, CV_DebugT debug_t, U64 *buckets_cap_out);
diff --git a/src/linker/lnk_io.c b/src/linker/lnk_io.c
index bb67b134..1ff236be 100644
--- a/src/linker/lnk_io.c
+++ b/src/linker/lnk_io.c
@@ -1,6 +1,3 @@
-////////////////////////////////
-// Shared File API
-
 shared_function int
 lnk_open_file_read(char *path, uint64_t path_size, void *handle_buffer, uint64_t handle_buffer_max)
 {
@@ -51,8 +48,6 @@ lnk_write_file(void *raw_handle, uint64_t offset, void *buffer, uint64_t buffer_
   return write_size;
 }
 
-////////////////////////////////
-
 internal String8List
 lnk_file_search(Arena *arena, String8List dir_list, String8 file_path)
 {
@@ -104,7 +99,7 @@ internal OS_Handle
 lnk_file_open_with_rename_permissions(String8 path)
 {
   OS_Handle file_handle = os_handle_zero();
-#if _WIN32
+#if OS_WINDOWS
   Temp scratch = scratch_begin(0,0);
 
   // open file with permissions to rename
@@ -123,7 +118,7 @@ lnk_file_open_with_rename_permissions(String8 path)
 
   scratch_end(scratch);
 #else
-#error "TODO: file rename"
+# error "TODO: file rename"
 #endif
   return file_handle;
 }
@@ -131,12 +126,12 @@ lnk_file_open_with_rename_permissions(String8 path)
 internal B32
 lnk_file_set_delete_on_close(OS_Handle handle, B32 delete_file)
 {
-#if _WIN32
+#if OS_WINDOWS
   FILE_DISPOSITION_INFO file_disposition = {0};
   file_disposition.DeleteFile            = (BOOL)delete_file;
   B32 is_set = SetFileInformationByHandle((HANDLE)handle.u64[0], FileDispositionInfo, &file_disposition, sizeof(file_disposition));
 #else
-#error "TODO: file rename"
+# error "TODO: file rename"
 #endif
   return is_set;
 }
@@ -145,7 +140,7 @@ internal B32
 lnk_file_rename(OS_Handle handle, String8 new_name)
 {
   Temp scratch = scratch_begin(0,0);
-#if _WIN32
+#if OS_WINDOWS
   String16 new_name16 = str16_from_8(scratch.arena, new_name);
 
   U64 file_rename_info_size = sizeof(FILE_RENAME_INFO);
@@ -218,7 +213,7 @@ internal
 THREAD_POOL_TASK_FUNC(lnk_memory_map_file_task)
 {
   LNK_DiskReader *task = raw_task;
-#if _WIN32
+#if OS_WINDOWS
   Temp scratch = scratch_begin(&arena, 1);
   String16 path16      = str16_from_8(scratch.arena, task->path_arr.v[task_id]);
   HANDLE   file_handle = CreateFileW(path16.str, GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
@@ -376,4 +371,3 @@ lnk_write_data_to_file_path(String8 path, String8 temp_path, String8 data)
   scratch_end(scratch);
 }
 
-
diff --git a/src/linker/lnk_io.h b/src/linker/lnk_io.h
index 9ff2a085..3e1b1705 100644
--- a/src/linker/lnk_io.h
+++ b/src/linker/lnk_io.h
@@ -1,15 +1,11 @@
 #pragma once
 
-////////////////////////////////
-
 typedef U32 LNK_IO_Flags;
 enum
 {
   LNK_IO_Flags_MemoryMapFiles = (1 << 0),
 };
 
-////////////////////////////////
-
 typedef struct
 {
   LNK_IO_Flags io_flags;
@@ -21,8 +17,7 @@ typedef struct
   U8          *buffer;
 } LNK_DiskReader;
 
-////////////////////////////////
-// Shared File API
+// --- Shared File API ---------------------------------------------------------
 
 shared_function int      lnk_open_file_read(char *path, uint64_t path_size, void *handle_buffer, uint64_t handle_buffer_max);
 shared_function int      lnk_open_file_write(char *path, uint64_t path_size, void *handle_buffer, uint64_t handle_buffer_max);
@@ -31,7 +26,7 @@ shared_function uint64_t lnk_size_from_file(void *raw_handle);
 shared_function uint64_t lnk_read_file(void *raw_handle, void *buffer, uint64_t buffer_max);
 shared_function uint64_t lnk_write_file(void *raw_handle, uint64_t offset, void *buffer, uint64_t buffer_size);
 
-////////////////////////////////
+// --- IO Functions ------------------------------------------------------------
 
 internal String8List lnk_file_search(Arena *arena, String8List dir_list, String8 file_path);
 
diff --git a/src/linker/lnk_lib.h b/src/linker/lnk_lib.h
index c15d0687..daff7528 100644
--- a/src/linker/lnk_lib.h
+++ b/src/linker/lnk_lib.h
@@ -34,8 +34,6 @@ typedef struct LNK_LibList
   struct LNK_LibNode *last;
 } LNK_LibList;
 
-////////////////////////////////
-
 typedef struct
 {
   LNK_LibNode     *node_arr;
@@ -44,8 +42,6 @@ typedef struct
   U64              base_input_idx;
 } LNK_LibIniter;
 
-////////////////////////////////
-
 internal LNK_Lib          lnk_lib_from_data(Arena *arena, String8 data, String8 path);
 internal LNK_LibNodeArray lnk_lib_list_push_parallel(TP_Context *tp, TP_Arena *arena, LNK_LibList *list, String8Array data_arr, String8Array path_arr);
 
diff --git a/src/linker/lnk_symbol_table.c b/src/linker/lnk_symbol_table.c
index 537c7539..6dd393c4 100644
--- a/src/linker/lnk_symbol_table.c
+++ b/src/linker/lnk_symbol_table.c
@@ -1,8 +1,6 @@
 // Copyright (c) 2025 Epic Games Tools
 // Licensed under the MIT license (https://opensource.org/license/mit/)
 
-////////////////////////////////
-
 internal LNK_Symbol *
 lnk_make_defined_symbol(Arena *arena, String8 name, struct LNK_Obj *obj, U32 symbol_idx)
 {
@@ -45,8 +43,6 @@ lnk_make_import_symbol(Arena *arena, String8 name, String8 import_header)
   return symbol;
 }
 
-////////////////////////////////
-
 internal void
 lnk_symbol_list_push_node(LNK_SymbolList *list, LNK_SymbolNode *node)
 {
@@ -107,50 +103,6 @@ lnk_symbol_array_from_list(Arena *arena, LNK_SymbolList list)
   return arr;
 }
 
-////////////////////////////////
-
-internal ISectOff
-lnk_sc_from_symbol(LNK_Symbol *symbol)
-{
-  COFF_ParsedSymbol parsed_symbol = lnk_parsed_symbol_from_coff_symbol_idx(symbol->u.defined.obj, symbol->u.defined.symbol_idx);
-
-  ISectOff sc = {0};
-  sc.isect    = parsed_symbol.section_number;
-  sc.off      = parsed_symbol.value;
-
-  return sc;
-}
-
-internal U64
-lnk_isect_from_symbol(LNK_Symbol *symbol)
-{
-  return lnk_sc_from_symbol(symbol).isect;
-}
-
-internal U64
-lnk_sect_off_from_symbol(LNK_Symbol *symbol)
-{
-  return lnk_sc_from_symbol(symbol).off;
-}
-
-internal U64
-lnk_virt_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol)
-{
-  ISectOff sc   = lnk_sc_from_symbol(symbol);
-  U64      voff = section_table[sc.isect]->voff + sc.off;
-  return voff;
-}
-
-internal U64
-lnk_file_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol)
-{
-  ISectOff sc   = lnk_sc_from_symbol(symbol);
-  U64      foff = section_table[sc.isect]->foff + sc.off;
-  return foff;
-}
-
-////////////////////////////////
-
 internal LNK_SymbolHashTrie *
 lnk_symbol_hash_trie_chunk_list_push(Arena *arena, LNK_SymbolHashTrieChunkList *list, U64 cap)
 {
@@ -498,8 +450,6 @@ lnk_symbol_hash_trie_remove(LNK_SymbolHashTrie *trie)
   ins_atomic_ptr_eval_assign(&trie->symbol, 0);
 }
 
-////////////////////////////////
-
 internal U64
 lnk_symbol_hash(String8 string)
 {
@@ -607,3 +557,44 @@ lnk_symbol_table_push_alt_name(LNK_SymbolTable *symtab, LNK_Obj *obj, String8 fr
   }
 }
 
+internal ISectOff
+lnk_sc_from_symbol(LNK_Symbol *symbol)
+{
+  COFF_ParsedSymbol parsed_symbol = lnk_parsed_symbol_from_coff_symbol_idx(symbol->u.defined.obj, symbol->u.defined.symbol_idx);
+
+  ISectOff sc = {0};
+  sc.isect    = parsed_symbol.section_number;
+  sc.off      = parsed_symbol.value;
+
+  return sc;
+}
+
+internal U64
+lnk_isect_from_symbol(LNK_Symbol *symbol)
+{
+  return lnk_sc_from_symbol(symbol).isect;
+}
+
+internal U64
+lnk_sect_off_from_symbol(LNK_Symbol *symbol)
+{
+  return lnk_sc_from_symbol(symbol).off;
+}
+
+internal U64
+lnk_virt_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol)
+{
+  ISectOff sc   = lnk_sc_from_symbol(symbol);
+  U64      voff = section_table[sc.isect]->voff + sc.off;
+  return voff;
+}
+
+internal U64
+lnk_file_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol)
+{
+  ISectOff sc   = lnk_sc_from_symbol(symbol);
+  U64      foff = section_table[sc.isect]->foff + sc.off;
+  return foff;
+}
+
+
diff --git a/src/linker/lnk_symbol_table.h b/src/linker/lnk_symbol_table.h
index 5c5ee11b..80f11b3a 100644
--- a/src/linker/lnk_symbol_table.h
+++ b/src/linker/lnk_symbol_table.h
@@ -3,8 +3,6 @@
 
 #pragma once
 
-////////////////////////////////
-
 typedef enum 
 {
   LNK_Symbol_Null,
@@ -111,24 +109,14 @@ typedef struct LNK_SymbolTable
   HashTable                   *alt_names;
 } LNK_SymbolTable;
 
-////////////////////////////////
-// parallel for wrappers
-
-typedef struct
-{
-  LNK_SymbolTable *symtab;
-  Rng1U64         *ranges;
-  LNK_Symbol      *arr;
-} LNK_LazySymbolInserter;
-
-////////////////////////////////
+// --- Symbol Make -------------------------------------------------------------
 
 internal LNK_Symbol * lnk_make_defined_symbol(Arena *arena, String8 name, struct LNK_Obj *obj, U32 symbol_idx);
 internal LNK_Symbol * lnk_make_lib_symbol(Arena *arena, String8 name, struct LNK_Lib *lib, U64 member_offset);
 internal LNK_Symbol * lnk_make_undefined_symbol(Arena *arena, String8 name, struct LNK_Obj *obj);
 internal LNK_Symbol * lnk_make_import_symbol(Arena *arena, String8 name, String8 import_header);
 
-////////////////////////////////
+// --- Symbol List -------------------------------------------------------------
 
 internal void                lnk_symbol_list_push_node(LNK_SymbolList *list, LNK_SymbolNode *node);
 internal LNK_SymbolNode *    lnk_symbol_list_push(Arena *arena, LNK_SymbolList *list, LNK_Symbol *symbol);
@@ -137,21 +125,13 @@ internal LNK_SymbolList      lnk_symbol_list_from_array(Arena *arena, LNK_Symbol
 internal LNK_SymbolNodeArray lnk_symbol_node_array_from_list(Arena *arena, LNK_SymbolList list);
 internal LNK_SymbolArray     lnk_symbol_array_from_list(Arena *arena, LNK_SymbolList list);
 
-////////////////////////////////
-
-internal ISectOff lnk_sc_from_symbol      (LNK_Symbol *symbol);
-internal U64      lnk_isect_from_symbol   (LNK_Symbol *symbol);
-internal U64      lnk_sect_off_from_symbol(LNK_Symbol *symbol);
-internal U64      lnk_virt_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol);
-internal U64      lnk_file_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol);
-
-////////////////////////////////
+// --- Symbol Hash Trie --------------------------------------------------------
 
 internal void                 lnk_symbol_hash_trie_insert_or_replace(Arena *arena, LNK_SymbolHashTrieChunkList *chunks, LNK_SymbolHashTrie **trie, U64 hash, LNK_Symbol *symbol);
 internal LNK_SymbolHashTrie * lnk_symbol_hash_trie_search(LNK_SymbolHashTrie *trie, U64 hash, String8 name);
 internal void                 lnk_symbol_hash_trie_remove(LNK_SymbolHashTrie *trie);
 
-////////////////////////////////
+// --- Symbol Table ------------------------------------------------------------
 
 internal U64  lnk_symbol_hash(String8 string);
 
@@ -165,3 +145,10 @@ internal void              lnk_symbol_table_remove(LNK_SymbolTable *symtab, LNK_
 
 internal void lnk_symbol_table_push_alt_name(LNK_SymbolTable *symtab, struct LNK_Obj *obj, String8 from, String8 to);
 
+// --- Symbol Contrib Helpers --------------------------------------------------
+
+internal ISectOff lnk_sc_from_symbol      (LNK_Symbol *symbol);
+internal U64      lnk_isect_from_symbol   (LNK_Symbol *symbol);
+internal U64      lnk_sect_off_from_symbol(LNK_Symbol *symbol);
+internal U64      lnk_virt_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol);
+internal U64      lnk_file_off_from_symbol(COFF_SectionHeader **section_table, LNK_Symbol *symbol);