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loader: Add support for 3DSX special relocation types, fixes citra-emu/citra#2449
As per devkitPro/3dstools@47bea18
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parent
55c91ae782
commit
bb1f277db1
@ -177,18 +177,34 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr,
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pos += table.skip;
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s32 num_patches = table.patch;
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while (0 < num_patches && pos < end_pos) {
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u32 in_addr =
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static_cast<u32>(reinterpret_cast<u8*>(pos) - program_image.data());
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u32 addr = TranslateAddr(*pos, &loadinfo, offsets);
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LOG_TRACE(Loader, "Patching %08X <-- rel(%08X,%d) (%08X)",
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base_addr + in_addr, addr, current_segment_reloc_table, *pos);
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u32 in_addr = base_addr + static_cast<u32>(reinterpret_cast<u8*>(pos) -
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program_image.data());
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u32 orig_data = *pos;
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u32 sub_type = orig_data >> (32 - 4);
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u32 addr = TranslateAddr(orig_data & ~0xF0000000, &loadinfo, offsets);
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LOG_TRACE(Loader, "Patching %08X <-- rel(%08X,%d) (%08X)", in_addr, addr,
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current_segment_reloc_table, *pos);
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switch (current_segment_reloc_table) {
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case 0:
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*pos = (addr);
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case 0: {
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if (sub_type != 0)
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return ERROR_READ;
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*pos = addr;
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break;
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case 1:
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*pos = static_cast<u32>(addr - in_addr);
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}
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case 1: {
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u32 data = addr - in_addr;
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switch (sub_type) {
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case 0: // 32-bit signed offset
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*pos = data;
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break;
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case 1: // 31-bit signed offset
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*pos = data & ~(1U << 31);
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break;
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default:
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return ERROR_READ;
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}
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break;
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}
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default:
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break; // this should never happen
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}
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