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finish undefined section test

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This commit is contained in:
Nikita Smith
2025-05-19 13:14:35 -07:00
committed by Ryan Fleury
parent a3bcfe01e1
commit 681c1619fb
1 changed files with 36 additions and 3 deletions
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src/torture/torture.c
+36 -3
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@@ -888,11 +888,12 @@ t_sect_symbol(void)
T_Result result = T_Result_Fail;
String8 sect_payload = str8_lit("hello, world");
String8 sect_obj_name = str8_lit("sect.obj");
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *sect = coff_obj_writer_push_section(obj_writer, str8_lit(".mysect$1"), PE_RDATA_SECTION_FLAGS, str8_lit("hello, world"));
coff_obj_writer_push_directive(obj_writer, str8_lit("/merge:.mysect=.rdata"));
COFF_ObjSection *sect = coff_obj_writer_push_section(obj_writer, str8_lit(".mysect$1"), PE_DATA_SECTION_FLAGS|COFF_SectionFlag_Align1Bytes, sect_payload);
coff_obj_writer_push_directive(obj_writer, str8_lit("/merge:.mysect=.data"));
String8 sect_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(sect_obj_name, sect_obj)) {
@@ -905,7 +906,7 @@ t_sect_symbol(void)
U8 data[8] = {0};
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *sect = t_push_data_section(obj_writer, str8_array_fixed(data));
COFF_ObjSymbol *symbol = coff_obj_writer_push_symbol_undef_sect(obj_writer, str8_lit(".mysect$2222"), PE_RDATA_SECTION_FLAGS);
COFF_ObjSymbol *symbol = coff_obj_writer_push_symbol_undef_sect(obj_writer, str8_lit(".mysect$2222"), PE_DATA_SECTION_FLAGS);
coff_obj_writer_section_push_reloc_addr(obj_writer, sect, 0, symbol);
U8 text[] = { 0xC3 };
@@ -922,6 +923,38 @@ t_sect_symbol(void)
int linker_exit_code = t_invoke_linkerf("/subsystem:console /entry:my_entry /out:a.exe main.obj sect.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 *sect = t_coff_section_header_from_name(string_table, section_table, pe.section_count, str8_lit(".data"));
if (!sect) {
goto exit;
}
String8 sect_data = str8_substr(exe, rng_1u64(sect->foff, sect->foff + sect->vsize));
String8 addr_data = str8_substr(sect_data, rng_1u64(0, sizeof(U64)));
if (addr_data.size != sizeof(U64)) {
goto exit;
}
U64 addr = *(U64 *)addr_data.str;
if (addr - (pe.image_base + sect->voff) != 8) {
goto exit;
}
String8 payload_got = str8_substr(sect_data, rng_1u64(8, sect_data.size));
if (!str8_match(payload_got, sect_payload, 0)) {
goto exit;
}
result = T_Result_Pass;
exit:;
scratch_end(scratch);
return result;