N-archive/citra
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Link the previous and current CRO by their link members.

Browse source
This commit is contained in:
Subv 2015-06-01 15:36:26 -05:00
parent 74d1553d85
commit d2d9709ea8
1 changed files with 62 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

68
src/core/hle/service/ldr_ro.cpp
View file

@ -76,6 +76,16 @@ struct ImportTableEntry {
u32 symbol_offset;
};
struct ExportTreeEntry {
u16 segment_offset;
u16 unk;
u16 unk2;
u16 export_table_id;
u8 GetTargetSegment() { return segment_offset & 0x7; }
u32 GetSegmentOffset() { return segment_offset >> 3; }
};
struct ExportedSymbol {
std::string name;
u32 cro_base;
@ -86,8 +96,8 @@ struct CROHeader {
u8 sha2_hash[0x80];
char magic[4];
u32 name_offset;
u32 previous_cro;
u32 next_cro;
u32 previous_cro;
u32 file_size;
INSERT_PADDING_WORDS(0x6);
u32 segment_offset;
@ -135,6 +145,8 @@ struct CROHeader {
ExportTableEntry* GetExportTableEntry(u32 index);
void RelocateExportsTable(u32 base);
ExportTreeEntry* GetExportTreeEntry(u32 index);
Patch* GetImportPatch(u32 index);
ImportTableEntry* GetImportTable1Entry(u32 index);
@ -182,6 +194,10 @@ void CROHeader::RelocateSegmentsTable(u32 base, u32 data_section0, u32 data_sect
}
}
ExportTreeEntry* CROHeader::GetExportTreeEntry(u32 index) {
return reinterpret_cast<ExportTreeEntry*>(reinterpret_cast<u8*>(this) + export_tree_offset + sizeof(ExportTreeEntry) * index);
}
u32 CROHeader::GetUnk1TableEntry(u32 index) {
return *reinterpret_cast<u32*>(reinterpret_cast<u8*>(this) + unk1_offset + sizeof(u32) * index);
}
@ -421,15 +437,48 @@ static void LoadExportsTable(CROHeader* header, u32 base) {
}
}
static u32 GetAddress(CROHeader* header, char* str) {
if (header->export_tree_num) {
ExportTreeEntry* first_entry = header->GetExportTreeEntry(0);
u32 len = strlen(str);
ExportTreeEntry* next_entry = header->GetExportTreeEntry(first_entry->unk);
bool v16 = false;
do {
u16 v14 = 0;
bool v12 = next_entry->GetSegmentOffset() >= len;
if (v12 || !((*(str + next_entry->GetSegmentOffset()) >> next_entry->GetTargetSegment()) & 1))
v14 = next_entry->unk;
else
v14 = next_entry->unk2;
v16 = (v14 & 0x8000) == 0;
next_entry = header->GetExportTreeEntry(v14 & 0x7FFF);
} while (v16);
u32 export_id = next_entry->export_table_id;
ExportTableEntry* export_entry = header->GetExportTableEntry(export_id);
char* export_name = (char*)Memory::GetPointer(export_entry->name_offset);
if (!strcmp(export_name, str)) {
SegmentTableEntry* segment = header->GetSegmentTableEntry(export_entry->GetTargetSegment());
return segment->segment_offset + export_entry->GetSegmentOffset();
}
}
return 0;
}
static void LinkCROs(CROHeader* new_cro, u32 base) {
if (!loaded_cros.empty())
new_cro->previous_cro = loaded_cros.back();
if (new_cro->previous_cro) {
CROHeader* previous_cro = reinterpret_cast<CROHeader*>(Memory::GetPointer(new_cro->previous_cro));
previous_cro->next_cro = base;
}
}
static void LoadCRO(u32 base, u8* cro, bool relocate_segments, u32 data_section0, u32 data_section1) {
CROHeader* header = reinterpret_cast<CROHeader*>(cro);
memcpy(header->magic, "FIXD", 4);
for (int i = 0; i < header->file_size; ++i) {
u32* d = (u32*)header + i;
if (*d == 0x2020E || *d == 0x2020D)
__debugbreak();
}
if (relocate_segments) {
// Relocate segments
header->RelocateSegmentsTable(base, data_section0, data_section1);
@ -480,7 +529,14 @@ static void LoadCRO(u32 base, u8* cro, bool relocate_segments, u32 data_section0
// Relocate all offsets
header->RelocateOffsets(base);
// Link the CROs
LinkCROs(header, base);
loaded_cros.push_back(base);
FileUtil::IOFile file(std::to_string(base) + ".cro", "wb+");
file.WriteBytes(header, header->file_size);
file.Close();
}
/**