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test for out of bounds section number on external symbol

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This commit is contained in:
Nikita Smith
2025-05-23 16:31:36 -07:00
committed by Ryan Fleury
parent ef476bf1f0
commit ea81d18223
1 changed files with 51 additions and 0 deletions
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src/torture/torture.c
+51
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@@ -400,6 +400,56 @@ t_machine_compat_check(void)
return result;
}
internal T_Result
t_out_of_bounds_section_number(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 *foo = coff_obj_writer_push_section(obj_writer, str8_lit(".foo"), PE_DATA_SECTION_FLAGS, str8_lit("foo"));
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("foo"), 0, foo);
String8 obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
{
COFF_FileHeaderInfo header = coff_file_header_info_from_data(obj);
String8 string_table = str8_substr(obj, header.string_table_range);
String8 symbol_table = str8_substr(obj, header.symbol_table_range);
COFF_ParsedSymbol symbol = coff_parse_symbol(header, string_table, symbol_table, 0);
COFF_Symbol16 *symbol16 = symbol.raw_symbol;
symbol16->section_number = 123;
}
if (!t_write_file(str8_lit("bad.obj"), obj)) { goto exit; }
}
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
U8 text[] = {
0x48, 0xC7, 0xC0, 0x00, 0x00, 0x00, 0x00, // mov rax, $imm
0xC3 // ret
};
COFF_ObjSection *sect = coff_obj_writer_push_section(obj_writer, str8_lit(".text"), PE_TEXT_SECTION_FLAGS, str8_array_fixed(text));
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("entry"), 0, sect);
COFF_ObjSymbol *symbol = coff_obj_writer_push_symbol_undef(obj_writer, str8_lit("foo"));
coff_obj_writer_section_push_reloc_voff(obj_writer, sect, 0, symbol);
String8 obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(str8_lit("entry.obj"), obj)) {
goto exit;
}
}
int linker_exit_code = t_invoke_linkerf("/subsystem:console /entry:entry /out:a.exe entry.obj bad.obj");
if (linker_exit_code == 0) { goto exit; }
if (t_ident_linker() == T_Linker_RAD && linker_exit_code != LNK_Error_IllData) { goto exit; }
result = T_Result_Pass;
exit:;
scratch_end(scratch);
return result;
}
internal T_Result
t_merge(void)
{
@@ -2761,6 +2811,7 @@ entry_point(CmdLine *cmdline)
} target_array[] = {
{ "simple_link_test", t_simple_link_test },
{ "machine_compat_check", t_machine_compat_check },
{ "out_of_bounds_section_number", t_out_of_bounds_section_number },
{ "merge", t_merge },
{ "undef_section", t_undef_section },
{ "undef_reloc_section", t_undef_reloc_section },