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check common block relocs and sort

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This commit is contained in:
Nikita Smith
2025-05-06 14:18:26 -07:00
committed by Ryan Fleury
parent cede94f8d9
commit 5cb682bcb3
1 changed files with 28 additions and 5 deletions
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src/torture/torture.c
+28 -5
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@@ -1089,11 +1089,11 @@ t_common_block(void)
T_Result result = T_Result_Fail;
String8 a_obj_name = str8_lit("a.obj");
U8 a_data[6] = {0};
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSymbol *symbol = coff_obj_writer_push_symbol_common(obj_writer, str8_lit("A"), 3);
U8 data[6] = { 0 };
COFF_ObjSection *data_sect = t_push_data_section(obj_writer, str8_array_fixed(data));
COFF_ObjSection *data_sect = t_push_data_section(obj_writer, str8_array_fixed(a_data));
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 0, symbol, COFF_Reloc_X64_Addr32);
String8 a_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
@@ -1103,10 +1103,10 @@ t_common_block(void)
}
String8 b_obj_name = str8_lit("b.obj");
U8 b_data[9] = { 0 };
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
U8 data[9] = { 0 };
COFF_ObjSection *data_sect = t_push_data_section(obj_writer, str8_array_fixed(data));
COFF_ObjSection *data_sect = t_push_data_section(obj_writer, str8_array_fixed(b_data));
COFF_ObjSymbol *symbol = coff_obj_writer_push_symbol_common(obj_writer, str8_lit("B"), 6);
coff_obj_writer_section_push_reloc(obj_writer, data_sect, 0, symbol, COFF_Reloc_X64_Addr64);
String8 b_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
@@ -1137,8 +1137,31 @@ t_common_block(void)
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 *section_table = (COFF_SectionHeader *)str8_substr(exe, pe.section_table_range).str;
COFF_SectionHeader *data_sect = t_coff_section_header_from_name(string_table, section_table, pe.section_count, str8_lit(".data"));
if (data_sect == 0) {
goto exit;
}
// test common block sort, if absent vsize is 0x1D
if (data_sect->vsize != 0x1B) {
goto exit;
}
String8 data = str8_substr(exe, rng_1u64(data_sect->foff, data_sect->foff + data_sect->fsize));
U32 *a_addr = (U32 *)data.str;
U64 *b_addr = (U64 *)(data.str + sizeof(a_data));
if ((*a_addr) - (pe.image_base + data_sect->voff) != 0x18) {
goto exit;
}
if ((*b_addr) - (pe.image_base + data_sect->voff) != 0x10) {
goto exit;
}
result = T_Result_Pass;
exit:;
scratch_end(scratch);