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test COMDAT NoDuplicates selection

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This commit is contained in:
Nikita Smith
2025-06-25 10:53:23 -07:00
committed by Ryan Fleury
parent 3978181d02
commit 8d324775a2
1 changed files with 41 additions and 0 deletions
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src/torture/torture.c
+41
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@@ -2100,6 +2100,46 @@ t_comdat_any(void)
return result; return result;
} }
internal T_Result
t_comdat_no_duplicates(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 *test_sect = coff_obj_writer_push_section(obj_writer, str8_lit(".test"), PE_DATA_SECTION_FLAGS|COFF_SectionFlag_LnkCOMDAT|COFF_SectionFlag_Align1Bytes, str8_lit("a"));
coff_obj_writer_push_symbol_secdef(obj_writer, test_sect, COFF_ComdatSelect_NoDuplicates);
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("a"), 0, test_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; }
if (!t_write_file(str8_lit("b.obj"), obj)) { goto exit; }
}
t_write_entry_obj();
int duplicates_exit_code = t_invoke_linkerf("/subsystem:console /entry:entry /out:a.exe a.obj b.obj entry.obj");
if (duplicates_exit_code == 0) { goto exit; }
if (t_ident_linker() == T_Linker_RAD && duplicates_exit_code != LNK_Error_MultiplyDefinedSymbol) { goto exit; }
int good_exit_code = t_invoke_linkerf("/subsystem:console /entry:entry /out:b.exe a.obj entry.obj");
if (good_exit_code != 0) { goto exit; }
String8 exe = t_read_file(scratch.arena, str8_lit("b.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(".test"));
String8 data = str8_substr(exe, rng_1u64(sect->foff, sect->foff + sect->vsize));
if (!str8_match(data, str8_lit("a"), 0)) { goto exit; }
result = T_Result_Pass;
exit:;
scratch_end(scratch);
return result;
}
internal T_Result internal T_Result
t_sect_align(void) t_sect_align(void)
{ {
@@ -2259,6 +2299,7 @@ entry_point(CmdLine *cmdline)
{ "sect_align", t_sect_align }, { "sect_align", t_sect_align },
{ "image_base", t_image_base }, { "image_base", t_image_base },
{ "comdat_any", t_comdat_any }, { "comdat_any", t_comdat_any },
{ "comdat_no_duplicates", t_comdat_no_duplicates },
//{ "import_export", t_import_export }, //{ "import_export", t_import_export },
}; };