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test section sorter

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This commit is contained in:
Nikita Smith
2025-05-01 12:47:02 -07:00
committed by Ryan Fleury
parent 0772617486
commit e9d5022a55
2 changed files with 102 additions and 33 deletions
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src/coff/coff_obj_writer.c
+5 -3
View File
@@ -391,7 +391,7 @@ coff_obj_writer_serialize(Arena *arena, COFF_ObjWriter *obj_writer)
//
// symbol table
//
if (symbol_table.total_size) {
if (symbol_table.total_size || string_table.total_size > sizeof(*string_table_size)) {
file_header->symbol_table_foff = srl.total_size;
str8_list_concat_in_place(&srl, &symbol_table);
}
@@ -399,8 +399,10 @@ coff_obj_writer_serialize(Arena *arena, COFF_ObjWriter *obj_writer)
//
// string table
//
*string_table_size = safe_cast_u32(string_table.total_size);
str8_list_concat_in_place(&srl, &string_table);
if (string_table.total_size) {
*string_table_size = safe_cast_u32(string_table.total_size);
str8_list_concat_in_place(&srl, &string_table);
}
//
// join
src/torture/torture.c
+97 -30
View File
@@ -629,6 +629,67 @@ exit:;
return result;
}
internal T_Result
t_weak_cycle(void)
{
Temp scratch = scratch_begin(0,0);
T_Result result = T_Result_Fail;
String8 ab_obj_name = str8_lit("ab.obj");
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSymbol *b = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("B"));
coff_obj_writer_push_symbol_weak(obj_writer, str8_lit("A"), COFF_WeakExt_SearchAlias, b);
String8 ab_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(ab_obj_name, ab_obj)) {
goto exit;
}
}
String8 ba_obj_name = str8_lit("ba.obj");
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSymbol *a = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("A"));
coff_obj_writer_push_symbol_weak(obj_writer, str8_lit("B"), COFF_WeakExt_SearchAlias, a);
String8 ba_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(ba_obj_name, ba_obj)) {
goto exit;
}
}
String8 entry_obj_name = str8_lit("entry.obj");
U8 entry_payload[] = { 0xC3 };
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *text_sect = t_push_text_section(obj_writer, str8_array_fixed(entry_payload));
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("my_entry"), 0, text_sect);
String8 entry_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(entry_obj_name, entry_obj)) {
goto exit;
}
}
U64 time_out = os_now_microseconds() + 3 * 1000 * 1000; // give a generous 3 seconds
int linker_exit_code = t_invoke_linker_with_time_outf(time_out, "/subsystem:console /entry:my_entry %S %S %S", entry_obj_name, ab_obj_name, ba_obj_name);
if (linker_exit_code != T_LINKER_TIME_OUT_EXIT_CODE) {
if (t_ident_linker() == T_Linker_MSVC) {
if (linker_exit_code == T_MsvcLinkExitCode_UnresolvedExternals) {
result = T_Result_Pass;
}
} else {
result = T_Result_Pass;
}
}
exit:;
scratch_end(scratch);
return result;
}
internal T_Result
t_weak_tag(void)
{
@@ -823,41 +884,35 @@ t_find_merged_pdata(void)
}
internal T_Result
t_weak_cycle(void)
t_section_sort(void)
{
Temp scratch = scratch_begin(0,0);
T_Result result = T_Result_Fail;
String8 ab_obj_name = str8_lit("ab.obj");
String8 data_obj_name = str8_lit("data.obj");
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSymbol *b = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("B"));
coff_obj_writer_push_symbol_weak(obj_writer, str8_lit("A"), COFF_WeakExt_SearchAlias, b);
String8 ab_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(ab_obj_name, ab_obj)) {
goto exit;
}
}
String8 ba_obj_name = str8_lit("ba.obj");
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSymbol *a = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("A"));
coff_obj_writer_push_symbol_weak(obj_writer, str8_lit("B"), COFF_WeakExt_SearchAlias, a);
String8 ba_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
COFF_SectionFlags data_flags = COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_MemRead|COFF_SectionFlag_MemRead|COFF_SectionFlag_Align1Bytes;
coff_obj_writer_push_section(obj_writer, str8_lit(".data$z"), data_flags, str8_lit("five"));
coff_obj_writer_push_section(obj_writer, str8_lit(".data$a"), data_flags, str8_lit("three"));
coff_obj_writer_push_section(obj_writer, str8_lit(".data$bbbbb"), data_flags, str8_lit("four"));
coff_obj_writer_push_section(obj_writer, str8_lit(".data$"), data_flags, str8_lit("two"));
coff_obj_writer_push_section(obj_writer, str8_lit(".data"), data_flags, str8_lit("one"));
String8 data_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(ba_obj_name, ba_obj)) {
if (!t_write_file(data_obj_name, data_obj)) {
goto exit;
}
}
String8 entry_obj_name = str8_lit("entry.obj");
U8 entry_payload[] = { 0xC3 };
U8 entry_text[] = { 0xC3 };
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *text_sect = t_push_text_section(obj_writer, str8_array_fixed(entry_payload));
COFF_ObjSection *text_sect = t_push_text_section(obj_writer, str8_array_fixed(entry_text));
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("my_entry"), 0, text_sect);
String8 entry_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
@@ -866,18 +921,29 @@ t_weak_cycle(void)
}
}
U64 time_out = os_now_microseconds() + 3 * 1000 * 1000; // give a generous 3 seconds
int linker_exit_code = t_invoke_linker_with_time_outf(time_out, "/subsystem:console /entry:my_entry %S %S %S", entry_obj_name, ab_obj_name, ba_obj_name);
if (linker_exit_code != T_LINKER_TIME_OUT_EXIT_CODE) {
if (t_ident_linker() == T_Linker_MSVC) {
if (linker_exit_code == T_MsvcLinkExitCode_UnresolvedExternals) {
result = T_Result_Pass;
}
} else {
result = T_Result_Pass;
}
int linker_exit_code = t_invoke_linkerf("/subsystem:console /entry:my_entry /out:a.exe data.obj entry.obj");
if (linker_exit_code != 0) {
goto exit;
}
String8 exe = t_read_file(scratch.arena, str8_lit("a.exe"));
PE_BinInfo pe = pe_bin_info_from_data(scratch.arena, exe);
COFF_SectionHeader *section_table = (COFF_SectionHeader *)str8_substr(exe, pe.section_table_range).str;
String8 string_table = str8_substr(exe, pe.string_table_range);
COFF_SectionHeader *data_section = t_coff_section_header_from_name(string_table, section_table, pe.section_count, str8_lit(".data"));
if (!data_section) {
goto exit;
}
String8 data = str8_substr(exe, rng_1u64(data_section->foff, data_section->foff + data_section->vsize));
String8 expected_data = str8_lit("onetwothreefourfive");
if (!str8_match(data, expected_data, 0)) {
goto exit;
}
result = T_Result_Pass;
exit:;
scratch_end(scratch);
return result;
@@ -972,6 +1038,7 @@ entry_point(CmdLine *cmdline)
{ "weak_cycle", t_weak_cycle },
{ "weak_tag", t_weak_tag },
{ "find_merged_pdata", t_find_merged_pdata },
{ "section_sort", t_section_sort },
//{ "base_relocs", t_base_relocs },
};