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test case for merged pdata

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This commit is contained in:
Nikita Smith
2025-04-22 10:47:33 -07:00
committed by Ryan Fleury
parent b9768be4ed
commit 19694dac2a
1 changed files with 66 additions and 2 deletions
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src/torture/torture.c
+66 -2
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@@ -305,6 +305,69 @@ t_undef_section(void)
return result;
}
internal T_Result
t_find_merged_pdata(void)
{
Temp scratch = scratch_begin(0,0);
T_Result result = T_Result_Fail;
U8 foobar_payload[] = {
0x40, 0x57, 0x48, 0x81, 0xEC, 0x00, 0x02, 0x00, 0x00, 0x48, 0x8B, 0x05, 0x00, 0x00, 0x00, 0x00,
0x48, 0x33, 0xC4, 0x48, 0x89, 0x84, 0x24, 0xF0, 0x01, 0x00, 0x00, 0x48, 0x8D, 0x04, 0x24, 0x48,
0x8B, 0xF8, 0x33, 0xC0, 0xB9, 0xEC, 0x01, 0x00, 0x00, 0xF3, 0xAA, 0xB8, 0x04, 0x00, 0x00, 0x00,
0x48, 0x6B, 0xC0, 0x02, 0x8B, 0x04, 0x04, 0x48, 0x8B, 0x8C, 0x24, 0xF0, 0x01, 0x00, 0x00, 0x48,
0x33, 0xCC, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x48, 0x81, 0xC4, 0x00, 0x02, 0x00, 0x00, 0x5F, 0xC3,
0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC,
0x48, 0x83, 0xEC, 0x28, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x48, 0x83, 0xC4, 0x28, 0xC3
};
U8 xdata_payload[] = {
0x19, 0x1B, 0x03, 0x00, 0x09, 0x01, 0x40, 0x00, 0x02, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xF0, 0x01, 0x00, 0x00, 0x01, 0x04, 0x01, 0x00, 0x04, 0x42, 0x00, 0x00
};
PE_IntelPdata intel_pdata = {0};
U8 text_payload[] = { 0xC3 };
String8 main_obj;
{
COFF_ObjWriter *obj_writer = coff_obj_writer_alloc(0, COFF_MachineType_X64);
COFF_ObjSection *xdata = coff_obj_writer_push_section(obj_writer, str8_lit(".xdata"), COFF_SectionFlag_MemRead|COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_Align4Bytes, str8_array_fixed(xdata_payload));
COFF_ObjSection *pdata = coff_obj_writer_push_section(obj_writer, str8_lit(".pdata"), COFF_SectionFlag_MemRead|COFF_SectionFlag_CntInitializedData|COFF_SectionFlag_Align4Bytes, str8_struct(&intel_pdata));
COFF_ObjSection *foobar = coff_obj_writer_push_section(obj_writer, str8_lit(".foobar"), COFF_SectionFlag_MemRead|COFF_SectionFlag_MemExecute|COFF_SectionFlag_CntCode|COFF_SectionFlag_Align1Bytes, str8_array_fixed(foobar_payload));
COFF_ObjSection *text = coff_obj_writer_push_section(obj_writer, str8_lit(".text"), COFF_SectionFlag_MemRead|COFF_SectionFlag_MemExecute|COFF_SectionFlag_CntCode|COFF_SectionFlag_Align1Bytes, str8_array_fixed(text_payload));
COFF_ObjSymbol *foobar_symbol = coff_obj_writer_push_symbol_static(obj_writer, str8_lit("foobar"), 0, foobar);
coff_obj_writer_push_symbol_secdef(obj_writer, xdata, COFF_ComdatSelect_Null);
COFF_ObjSymbol *unwind_foobar = coff_obj_writer_push_symbol_static(obj_writer, str8_lit("$unwind$foobar"), 0, xdata);
coff_obj_writer_push_symbol_secdef(obj_writer, pdata, COFF_ComdatSelect_Null);
coff_obj_writer_push_symbol_static(obj_writer, str8_lit("$pdata$foobar"), 0, pdata);
coff_obj_writer_section_push_reloc(obj_writer, pdata, OffsetOf(PE_IntelPdata, voff_unwind_info), unwind_foobar, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, pdata, OffsetOf(PE_IntelPdata, voff_first), foobar_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_section_push_reloc(obj_writer, pdata, OffsetOf(PE_IntelPdata, voff_one_past_last), foobar_symbol, COFF_Reloc_X64_Addr32Nb);
coff_obj_writer_push_symbol_extern(obj_writer, str8_lit("my_entry"), 0, text);
main_obj = coff_obj_writer_serialize(scratch.arena, obj_writer);
coff_obj_writer_release(&obj_writer);
}
t_write_file(str8_lit("main.obj"), main_obj);
int linker_exit_code = t_invoke_linker(str8_lit("/subsystem:console /entry:my_entry /out:a.exe main.obj /merge:.pdata=.rdata"));
if (linker_exit_code == 0) {
String8 exe = t_read_file(scratch.arena, str8_lit("a.exe"));
PE_BinInfo pe = pe_bin_info_from_data(scratch.arena, exe);
if (dim_1u64(pe.data_dir_franges[PE_DataDirectoryIndex_EXCEPTIONS]) == 0xC) {
result = T_Result_Pass;
}
}
scratch_end(scratch);
return result;
}
////////////////////////////////////////////////////////////////
internal void
@@ -319,8 +382,9 @@ entry_point(CmdLine *cmdline)
char *label;
T_Result (*r)(void);
} target_array[] = {
{ "undef_section", t_undef_section },
{ "abs_vs_weak", t_abs_vs_weak },
{ "undef_section", t_undef_section },
{ "abs_vs_weak", t_abs_vs_weak },
{ "find_merged_pdata", t_find_merged_pdata },
};
//