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check flags on custom bss section

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This commit is contained in:
Nikita Smith
2025-05-07 09:59:44 -07:00
committed by Ryan Fleury
parent 5cb682bcb3
commit a5b3df7d1b
1 changed files with 31 additions and 3 deletions
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src/torture/torture.c
+31 -3
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@@ -262,8 +262,9 @@ t_coff_section_header_array_from_name(Arena *arena, String8 string_table, COFF_S
typedef enum
{
T_MsvcLinkExitCode_UnresolvedExternals = 1120,
T_MsvcLinkExitCode_CorruptOrInvalidSymbolTable = 1235,
T_MsvcLinkExitCode_UnresolvedExternals = 1120,
T_MsvcLinkExitCode_CorruptOrInvalidSymbolTable = 1235,
T_MsvcLinkExitCode_SectionsFoundWithDifferentAttributes = 4078,
} T_MsvcLinkExitCode;
internal COFF_ObjSection *
@@ -1050,10 +1051,12 @@ t_invalid_bss(void)
T_Result result = T_Result_Fail;
COFF_SectionFlags bss_flags = COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_MemRead;
String8 bss_obj_name = str8_lit("bss.obj");
String8 bss_data = str8_lit("Hello, World");
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
coff_obj_writer_push_section(obj_writer, str8_lit(".bss"), COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_MemRead, str8_lit("Hello, World"));
coff_obj_writer_push_section(obj_writer, str8_lit(".bss"), bss_flags, bss_data);
String8 bss_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
if (!t_write_file(bss_obj_name, bss_obj)) {
@@ -1075,6 +1078,31 @@ t_invalid_bss(void)
}
int linker_exit_code = t_invoke_linkerf("/subsystem:console /entry:my_entry /out:a.exe bss.obj entry.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 *bss_sect = t_coff_section_header_from_name(string_table, section_table, pe.section_count, str8_lit(".bss"));
if (bss_sect == 0) {
goto exit;
}
if (bss_sect->vsize != 0xC) {
goto exit;
}
if (bss_sect->flags != bss_flags) {
goto exit;
}
String8 data = str8_substr(exe, rng_1u64(bss_sect->foff, bss_sect->foff + bss_sect->vsize));
if (!str8_match(data, bss_data, 0)) {
goto exit;
}
result = T_Result_Pass;
exit:;
scratch_end(scratch);