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make export table with COFF obj writer,

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partially converted import table to COFF obj writer
This commit is contained in:
Nikita Smith
2025-06-25 10:53:21 -07:00
committed by Ryan Fleury
parent 3a2bb318c7
commit 19a7ada1dc
18 changed files with 760 additions and 900 deletions
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src/linker/lnk_lib.c
-139
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@@ -536,145 +536,6 @@ lnk_build_lib(Arena *arena, COFF_MachineType machine, COFF_TimeStamp time_stamp,
return lib;
}
internal String8
lnk_build_import_entry_obj(Arena *arena, String8 dll_name, COFF_TimeStamp time_stamp, COFF_MachineType machine)
{
ProfBeginFunction();
Temp scratch = scratch_begin(&arena, 1);
Assert(machine == COFF_MachineType_X64);
Assert(str8_match_lit("dll", str8_skip_last_dot(dll_name), StringMatchFlag_CaseInsensitive|StringMatchFlag_RightSideSloppy));
String8 dll_name_no_ext = str8_chop_last_dot(dll_name);
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(time_stamp, machine);
String8 debug_symbols;
{
CV_SymbolList symbol_list = { .signature = CV_Signature_C13 };
String8 comp3_data = lnk_make_linker_compile3(scratch.arena, machine);
cv_symbol_list_push_data(scratch.arena, &symbol_list, CV_SymKind_COMPILE3, comp3_data);
debug_symbols = lnk_make_debug_s(obj_writer->arena, symbol_list);
}
String8 dll_name_cstr = push_cstr(obj_writer->arena, dll_name);
COFF_ObjSection *debugs = coff_obj_writer_push_section(obj_writer, str8_lit(".debug$S"), LNK_DEBUG_SECTION_FLAGS|COFF_SectionFlag_Align1Bytes, debug_symbols);
COFF_ObjSection *idata2 = coff_obj_writer_push_section(obj_writer, str8_lit(".idata$2"), LNK_DATA_SECTION_FLAGS|COFF_SectionFlag_Align4Bytes, str8_zero());
COFF_ObjSection *idata6 = coff_obj_writer_push_section(obj_writer, str8_lit(".idata$6"), LNK_DATA_SECTION_FLAGS|COFF_SectionFlag_Align2Bytes, dll_name_cstr);
coff_obj_writer_push_symbol_abs(obj_writer, str8_lit("@comp.id"), 0x1018175, COFF_SymStorageClass_Static);
{
String8 symbol_name = push_str8f(arena, "__IMPORT_DESCRIPTOR_%S", dll_name_no_ext);
coff_obj_writer_push_symbol_external(obj_writer, symbol_name, 0, idata2);
}
COFF_ObjSymbol *idata2_symbol = coff_obj_writer_push_symbol_sect(obj_writer, idata2->name, idata2);
COFF_ObjSymbol *idata6_symbol = coff_obj_writer_push_symbol_static(obj_writer, idata6->name, 0, idata6);
COFF_ObjSymbol *idata4_symbol = coff_obj_writer_push_symbol_undef_sect(obj_writer, str8_lit(".idata$4"), COFF_SectionFlag_MemWrite|COFF_SectionFlag_MemRead|COFF_SectionFlag_CntInitializedData);
COFF_ObjSymbol *idata5_symbol = coff_obj_writer_push_symbol_undef_sect(obj_writer, str8_lit(".idata$5"), COFF_SectionFlag_MemWrite|COFF_SectionFlag_MemRead|COFF_SectionFlag_CntInitializedData);
coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("__NULL_IMPORT_DESCRIPTOR"));
{
String8 symbol_name = push_str8f(arena, "\x7f%S_NULL_THUNK_DATA", dll_name_no_ext);
coff_obj_writer_push_symbol_undef(obj_writer, symbol_name);
}
{
PE_ImportEntry *import_entry = push_array(obj_writer->arena, PE_ImportEntry, 1);
str8_list_push(obj_writer->arena, &idata2->data, str8_struct(import_entry));
coff_obj_writer_section_push_reloc(obj_writer, idata2, OffsetOf(PE_ImportEntry, name_voff), idata6_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, idata2, OffsetOf(PE_ImportEntry, lookup_table_voff), idata4_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, idata2, OffsetOf(PE_ImportEntry, import_addr_table_voff), idata5_symbol, COFF_Reloc_X64_Addr32Nb);
}
String8 obj = coff_obj_writer_serialize(arena, obj_writer);
coff_obj_writer_release(&obj_writer);
scratch_end(scratch);
ProfEnd();
return obj;
}
internal String8
lnk_build_null_import_descriptor_obj(Arena *arena, COFF_TimeStamp time_stamp, COFF_MachineType machine)
{
ProfBeginFunction();
Temp scratch = scratch_begin(&arena, 1);
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(time_stamp, machine);
String8 debug_symbols;
{
CV_SymbolList symbol_list = { .signature = CV_Signature_C13 };
String8 comp3_data = lnk_make_linker_compile3(scratch.arena, machine);
cv_symbol_list_push_data(scratch.arena, &symbol_list, CV_SymKind_COMPILE3, comp3_data);
debug_symbols = lnk_make_debug_s(obj_writer->arena, symbol_list);
}
PE_ImportEntry *import_desc = push_array(obj_writer->arena, PE_ImportEntry, 1);
COFF_ObjSection *debugs = coff_obj_writer_push_section(obj_writer, str8_lit(".debug$S"), LNK_DEBUG_SECTION_FLAGS|COFF_SectionFlag_Align1Bytes, debug_symbols);
COFF_ObjSection *idata3 = coff_obj_writer_push_section(obj_writer, str8_lit(".idata$3"), LNK_DATA_SECTION_FLAGS|COFF_SectionFlag_Align4Bytes, str8_struct(import_desc));
coff_obj_writer_push_symbol_abs(obj_writer, str8_lit("@comp.id"), 0x01018175, COFF_SymStorageClass_Static);
coff_obj_writer_push_symbol_external(obj_writer, str8_lit("__NULL_IMPORT_DESCRIPTOR"), 0, idata3);
String8 obj = coff_obj_writer_serialize(arena, obj_writer);
coff_obj_writer_release(&obj_writer);
scratch_end(scratch);
ProfEnd();
return obj;
}
internal String8
lnk_build_null_thunk_data_obj(Arena *arena, String8 dll_name, COFF_TimeStamp time_stamp, COFF_MachineType machine)
{
ProfBeginFunction();
Temp scratch = scratch_begin(&arena, 1);
Assert(str8_match_lit("dll", str8_skip_last_dot(dll_name), StringMatchFlag_CaseInsensitive|StringMatchFlag_RightSideSloppy));
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(time_stamp, machine);
String8 debug_symbols;
{
CV_SymbolList symbol_list = { .signature = CV_Signature_C13 };
String8 comp3_data = lnk_make_linker_compile3(scratch.arena, machine);
cv_symbol_list_push_data(scratch.arena, &symbol_list, CV_SymKind_COMPILE3, comp3_data);
debug_symbols = lnk_make_debug_s(obj_writer->arena, symbol_list);
}
COFF_ObjSection *debugs = coff_obj_writer_push_section(obj_writer, str8_lit(".debug$S"), LNK_DEBUG_SECTION_FLAGS|COFF_SectionFlag_Align1Bytes, debug_symbols);
COFF_ObjSection *idata4 = coff_obj_writer_push_section(obj_writer, str8_lit(".idata$4"), COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_MemRead|COFF_SectionFlag_MemWrite, str8_zero());
COFF_ObjSection *idata5 = coff_obj_writer_push_section(obj_writer, str8_lit(".idata$5"), COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_MemRead|COFF_SectionFlag_MemWrite, str8_zero());
U64 import_size = coff_word_size_from_machine(machine);
U8 *null_thunk = push_array(obj_writer->arena, U8, import_size);
U8 *null_lookup = push_array(obj_writer->arena, U8, import_size);
str8_list_push(obj_writer->arena, &idata5->data, str8_array(null_thunk, import_size));
str8_list_push(obj_writer->arena, &idata4->data, str8_array(null_lookup, import_size));
idata4->flags |= coff_section_flag_from_align_size(import_size);
idata5->flags |= coff_section_flag_from_align_size(import_size);
coff_obj_writer_push_symbol_abs(obj_writer, str8_lit("@comp.id"), 0x1018175, COFF_SymStorageClass_Static);
{
String8 dll_name_no_ext = str8_chop_last_dot(dll_name);
String8 symbol_name = push_str8f(arena, "\x7f%S_NULL_THUNK_DATA", dll_name_no_ext);
coff_obj_writer_push_symbol_external(obj_writer, symbol_name, 0, idata5);
}
String8 obj = coff_obj_writer_serialize(arena, obj_writer);
coff_obj_writer_release(&obj_writer);
scratch_end(scratch);
ProfEnd();
return obj;
}
internal String8
lnk_build_lib_member_header(Arena *arena, String8 name, COFF_TimeStamp time_stamp, U16 user_id, U16 group_id, U16 mode, U32 size)
{