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test COMDAT SameSize selection

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This commit is contained in:
Nikita Smith
2025-05-22 10:33:44 -07:00
committed by Ryan Fleury
parent aafb980c6b
commit 9bea163d10
1 changed files with 62 additions and 0 deletions
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src/torture/torture.c
+62
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@@ -2140,6 +2140,67 @@ exit:;
return result;
}
internal T_Result
t_comdat_same_size(void)
{
Temp scratch = scratch_begin(0,0);
T_Result result = T_Result_Fail;
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *sect = coff_obj_writer_push_section(obj_writer, str8_lit(".a"), PE_DATA_SECTION_FLAGS|COFF_SectionFlag_LnkCOMDAT|COFF_SectionFlag_Align1Bytes, str8_lit("a"));
coff_obj_writer_push_symbol_secdef(obj_writer, sect, COFF_ComdatSelect_SameSize);
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("TEST"), 0, sect);
String8 obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(str8_lit("a.obj"), obj)) { goto exit; }
}
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *sect = coff_obj_writer_push_section(obj_writer, str8_lit(".b"), PE_DATA_SECTION_FLAGS|COFF_SectionFlag_LnkCOMDAT|COFF_SectionFlag_Align1Bytes, str8_lit("b"));
coff_obj_writer_push_symbol_secdef(obj_writer, sect, COFF_ComdatSelect_SameSize);
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("TEST"), 0, sect);
String8 obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(str8_lit("b.obj"), obj)) { goto exit; }
}
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *sect = coff_obj_writer_push_section(obj_writer, str8_lit(".c"), PE_DATA_SECTION_FLAGS|COFF_SectionFlag_LnkCOMDAT|COFF_SectionFlag_Align1Bytes, str8_lit("cc"));
coff_obj_writer_push_symbol_secdef(obj_writer, sect, COFF_ComdatSelect_SameSize);
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("TEST"), 0, sect);
String8 obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(str8_lit("c.obj"), obj)) { goto exit; }
}
t_write_entry_obj();
int same_exit_code = t_invoke_linkerf("/subsystem:console /entry:entry /out:a.exe a.obj b.obj entry.obj");
if (same_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 *sect = t_coff_section_header_from_name(exe, section_table, pe.section_count, str8_lit(".a"));
if (sect == 0) { goto exit; }
String8 data = str8_substr(exe, rng_1u64(sect->foff, sect->foff + sect->vsize));
if (!str8_match(data, str8_lit("a"), 0)) { goto exit; }
}
int not_same_exit_code = t_invoke_linkerf("/subsystem:console /entry:entry /out:b.exe a.obj b.obj c.obj entry.obj");
if (not_same_exit_code == 0) { goto exit; }
if (t_ident_linker() == T_Linker_RAD && not_same_exit_code != LNK_Error_MultiplyDefinedSymbol) { goto exit; }
result = T_Result_Pass;
exit:;
scratch_end(scratch);
return result;
}
internal T_Result
t_sect_align(void)
{
@@ -2300,6 +2361,7 @@ entry_point(CmdLine *cmdline)
{ "image_base", t_image_base },
{ "comdat_any", t_comdat_any },
{ "comdat_no_duplicates", t_comdat_no_duplicates },
{ "comdat_same_size", t_comdat_same_size },
//{ "import_export", t_import_export },
};