Loader: Clean up the 3DSX AppLoader.
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08aaa33500
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84e52a944d
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@ -85,7 +85,7 @@ struct THREEloadinfo
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u32 seg_sizes[3];
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};
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static u32 TranslateAddr(u32 addr, THREEloadinfo *loadinfo, u32* offsets)
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static u32 TranslateAddr(u32 addr, const THREEloadinfo *loadinfo, u32* offsets)
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{
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if (addr < offsets[0])
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return loadinfo->seg_addrs[0] + addr;
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@ -130,8 +130,9 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr)
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// Read the relocation headers
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u32* relocs = (u32*)(loadinfo.seg_ptrs[2] + hdr.data_seg_size);
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for (u32 current_segment = 0; current_segment < 3; current_segment++) {
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if (file.ReadBytes(&relocs[current_segment*n_reloc_tables], n_reloc_tables * 4) != n_reloc_tables * 4)
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for (unsigned current_segment = 0; current_segment < 3; current_segment++) {
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size_t size = n_reloc_tables * 4;
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if (file.ReadBytes(&relocs[current_segment * n_reloc_tables], size) != size)
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return ERROR_READ;
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}
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@ -147,9 +148,9 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr)
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memset((char*)loadinfo.seg_ptrs[2] + hdr.data_seg_size - hdr.bss_size, 0, hdr.bss_size);
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// Relocate the segments
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for (u32 current_segment = 0; current_segment < 3; current_segment++) {
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for (u32 current_segment_reloc_table = 0; current_segment_reloc_table < n_reloc_tables; current_segment_reloc_table++) {
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u32 n_relocs = relocs[current_segment*n_reloc_tables + current_segment_reloc_table];
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for (unsigned current_segment = 0; current_segment < 3; current_segment++) {
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for (unsigned current_segment_reloc_table = 0; current_segment_reloc_table < n_reloc_tables; current_segment_reloc_table++) {
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u32 n_relocs = relocs[current_segment * n_reloc_tables + current_segment_reloc_table];
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if (current_segment_reloc_table >= 2) {
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// We are not using this table - ignore it because we don't know what it dose
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file.Seek(n_relocs*sizeof(THREEDSX_Reloc), SEEK_CUR);
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@ -158,29 +159,35 @@ static THREEDSX_Error Load3DSXFile(FileUtil::IOFile& file, u32 base_addr)
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static THREEDSX_Reloc reloc_table[RELOCBUFSIZE];
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u32* pos = (u32*)loadinfo.seg_ptrs[current_segment];
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u32* end_pos = pos + (loadinfo.seg_sizes[current_segment] / 4);
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const u32* end_pos = pos + (loadinfo.seg_sizes[current_segment] / 4);
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while (n_relocs) {
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u32 remaining = std::min(RELOCBUFSIZE, n_relocs);
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n_relocs -= remaining;
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if (file.ReadBytes(reloc_table, remaining*sizeof(THREEDSX_Reloc)) != remaining*sizeof(THREEDSX_Reloc))
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if (file.ReadBytes(reloc_table, remaining * sizeof(THREEDSX_Reloc)) != remaining * sizeof(THREEDSX_Reloc))
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return ERROR_READ;
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for (u32 current_inprogress = 0; current_inprogress < remaining && pos < end_pos; current_inprogress++) {
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LOG_TRACE(Loader, "(t=%d,skip=%u,patch=%u)\n",
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current_segment_reloc_table, (u32)reloc_table[current_inprogress].skip, (u32)reloc_table[current_inprogress].patch);
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pos += reloc_table[current_inprogress].skip;
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s32 num_patches = reloc_table[current_inprogress].patch;
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for (unsigned current_inprogress = 0; current_inprogress < remaining && pos < end_pos; current_inprogress++) {
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const auto& table = reloc_table[current_inprogress];
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LOG_TRACE(Loader, "(t=%d,skip=%u,patch=%u)\n", current_segment_reloc_table,
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(u32)table.skip, (u32)table.patch);
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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 = (char*)pos - (char*)&all_mem[0];
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u32 addr = TranslateAddr(*pos, &loadinfo, offsets);
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LOG_TRACE(Loader, "Patching %08X <-- rel(%08X,%d) (%08X)\n",
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base_addr + in_addr, addr, current_segment_reloc_table, *pos);
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base_addr + in_addr, addr, current_segment_reloc_table, *pos);
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switch (current_segment_reloc_table) {
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case 0: *pos = (addr); break;
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case 1: *pos = (addr - in_addr); break;
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default: break; //this should never happen
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case 0:
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*pos = (addr);
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break;
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case 1:
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*pos = (addr - in_addr);
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break;
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default:
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break; //this should never happen
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}
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pos++;
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num_patches--;
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