mirror of
https://github.com/HIllya51/LunaHook.git
synced 2024-10-22 23:18:16 +08:00
483 lines
18 KiB
C++
483 lines
18 KiB
C++
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#include"engine.h"
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#include"util/util.h"
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#include"psputils.hpp"
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#include"specialgames.hpp"
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// See: https://github.com/hrydgard/ppsspp
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// Core/HLE (High Level Emulator)
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// - sceCcc
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// #void sceCccSetTable(u32 jis2ucs, u32 ucs2jis)
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// int sceCccUTF8toUTF16(u32 dstAddr, u32 dstSize, u32 srcAddr)
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// int sceCccUTF8toSJIS(u32 dstAddr, u32 dstSize, u32 srcAddr)
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// int sceCccUTF16toUTF8(u32 dstAddr, u32 dstSize, u32 srcAddr)
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// int sceCccUTF16toSJIS(u32 dstAddr, u32 dstSize, u32 srcAddr)
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// int sceCccSJIStoUTF8(u32 dstAddr, u32 dstSize, u32 srcAddr)
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// int sceCccSJIStoUTF16(u32 dstAddr, u32 dstSize, u32 srcAddr)
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// int sceCccStrlenUTF8(u32 strAddr)
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// int sceCccStrlenUTF16(u32 strAddr)
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// int sceCccStrlenSJIS(u32 strAddr)
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// u32 sceCccEncodeUTF8(u32 dstAddrAddr, u32 ucs)
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// void sceCccEncodeUTF16(u32 dstAddrAddr, u32 ucs)
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// u32 sceCccEncodeSJIS(u32 dstAddrAddr, u32 jis)
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// u32 sceCccDecodeUTF8(u32 dstAddrAddr)
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// u32 sceCccDecodeUTF16(u32 dstAddrAddr)
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// u32 sceCccDecodeSJIS(u32 dstAddrAddr)
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// int sceCccIsValidUTF8(u32 c)
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// int sceCccIsValidUTF16(u32 c)
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// int sceCccIsValidSJIS(u32 c)
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// int sceCccIsValidUCS2(u32 c)
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// int sceCccIsValidUCS4(u32 c)
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// int sceCccIsValidJIS(u32 c)
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// int sceCccIsValidUnicode(u32 c)
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// #u32 sceCccSetErrorCharUTF8(u32 c)
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// #u32 sceCccSetErrorCharUTF16(u32 c)
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// #u32 sceCccSetErrorCharSJIS(u32 c)
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// u32 sceCccUCStoJIS(u32 c, u32 alt)
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// u32 sceCccJIStoUCS(u32 c, u32 alt)
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// - sceFont: search charCode
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// int sceFontGetCharInfo(u32 fontHandle, u32 charCode, u32 charInfoPtr)
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// int sceFontGetShadowInfo(u32 fontHandle, u32 charCode, u32 charInfoPtr)
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// int sceFontGetCharImageRect(u32 fontHandle, u32 charCode, u32 charRectPtr)
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// int sceFontGetShadowImageRect(u32 fontHandle, u32 charCode, u32 charRectPtr)
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// int sceFontGetCharGlyphImage(u32 fontHandle, u32 charCode, u32 glyphImagePtr)
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// int sceFontGetCharGlyphImage_Clip(u32 fontHandle, u32 charCode, u32 glyphImagePtr, int clipXPos, int clipYPos, int clipWidth, int clipHeight)
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// #int sceFontSetAltCharacterCode(u32 fontLibHandle, u32 charCode)
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// int sceFontGetShadowGlyphImage(u32 fontHandle, u32 charCode, u32 glyphImagePtr)
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// int sceFontGetShadowGlyphImage_Clip(u32 fontHandle, u32 charCode, u32 glyphImagePtr, int clipXPos, int clipYPos, int clipWidth, int clipHeight)
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// - sceKernelInterrupt
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// u32 sysclib_strcat(u32 dst, u32 src)
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// int sysclib_strcmp(u32 dst, u32 src)
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// u32 sysclib_strcpy(u32 dst, u32 src)
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// u32 sysclib_strlen(u32 src)
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//
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// Sample debug string:
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// 006EFD8E PUSH PPSSPPWi.00832188 ASCII "sceCccEncodeSJIS(%08x, U+%04x)"
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// Corresponding source code in sceCcc:
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// ERROR_LOG(HLE, "sceCccEncodeSJIS(%08x, U+%04x): invalid pointer", dstAddrAddr, jis);
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struct PPSSPPFunction
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{
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const char *hookName; // hook name
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int argIndex; // argument index
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uint64_t hookType; // hook parameter type
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int hookSplit; // hook parameter split, positive: stack, negative: registers
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const char *pattern; // debug string used within the function
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};
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uint64_t findleaaddr(uint64_t addr,uint64_t start,uint64_t end)
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{
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for(auto _addr=start;_addr<end;_addr+=1)
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{
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auto lea=(*(WORD*)_addr);
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if(lea!=0x8d4c&&lea!=0x8d48)
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continue;
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auto offset=*(DWORD*)(_addr+3);
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auto refaddr=(offset)+_addr+7;
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if(refaddr==addr)
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return _addr;
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}
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return 0;
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}
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bool InsertPPSSPPHLEHooks()
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{
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auto functions=std::vector<PPSSPPFunction>{
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//https://github.com/hrydgard/ppsspp/blob/master/Core/HLE/sceCcc.cpp
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{ "sceCccStrlenSJIS", GETARG1, USING_STRING, 0, "sceCccStrlenSJIS(" } ,
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{ "sceCccStrlenUTF8", GETARG1, CODEC_UTF8|USING_STRING, 0, "sceCccStrlenUTF8(" } ,
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{ "sceCccStrlenUTF16", GETARG1, CODEC_UTF16|USING_STRING, 0, "sceCccStrlenUTF16(" } ,
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{ "sceCccSJIStoUTF8", GETARG3, USING_STRING, 0, "sceCccSJIStoUTF8(" } ,
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{ "sceCccSJIStoUTF16", GETARG3, USING_STRING, 0, "sceCccSJIStoUTF16(" } ,
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{ "sceCccUTF8toSJIS", GETARG3, CODEC_UTF8|USING_STRING, 0, "sceCccUTF8toSJIS(" } ,
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{ "sceCccUTF8toUTF16", GETARG3, CODEC_UTF8|USING_STRING, 0, "sceCccUTF8toUTF16(" } ,
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{ "sceCccUTF16toSJIS", GETARG3, CODEC_UTF16|USING_STRING, 0, "sceCccUTF16toSJIS(" } ,
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{ "sceCccUTF16toUTF8", GETARG3, CODEC_UTF16|USING_STRING, 0, "sceCccUTF16toUTF8(" } ,
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//https://github.com/hrydgard/ppsspp/blob/master/Core/HLE/sceFont.cpp
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{ "sceFontGetCharInfo", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetCharInfo(" } ,
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{ "sceFontGetShadowInfo", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetShadowInfo("} ,
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{ "sceFontGetCharImageRect", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetCharImageRect(" } ,
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{ "sceFontGetShadowImageRect", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetShadowImageRect(" } ,
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{ "sceFontGetCharGlyphImage", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetCharGlyphImage(" } ,
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{ "sceFontGetCharGlyphImage_Clip", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetCharGlyphImage_Clip(" } ,
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{ "sceFontGetShadowGlyphImage", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetShadowGlyphImage(" } ,
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{ "sceFontGetShadowGlyphImage_Clip", GETARG2, CODEC_UTF16, GETARG1, "sceFontGetShadowGlyphImage_Clip(" } ,
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//https://github.com/hrydgard/ppsspp/blob/master/Core/HLE/sceKernelInterrupt.cpp
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{ "sysclib_strcat", GETARG2, USING_STRING, 0, "Untested sysclib_strcat(" } ,
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{ "sysclib_strcpy", GETARG2, USING_STRING, 0, "Untested sysclib_strcpy(" } ,
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{ "sysclib_strlen", GETARG1, USING_STRING, 0, "Untested sysclib_strlen(" }
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// Disabled as I am not sure how to deal with the source string
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//, { "sceCccEncodeSJIS", 2, USING_STRING, 0, "sceCccEncodeSJIS(" }
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//, { "sceCccEncodeUTF8", 2, CODEC_UTF8, 0, "sceCccEncodeUTF8(" }
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//, { "sceCccEncodeUTF16", 2, CODEC_UTF16, 0, "sceCccEncodeUTF16(" }
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//, { "sysclib_strcmp", 2, USING_STRING, 0, "Untested sysclib_strcmp(" }
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};
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auto succ=false;
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for (auto&& function :functions) {
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auto addr = MemDbg::findBytes(function.pattern, ::strlen(function.pattern), processStartAddress, processStopAddress);
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if(!addr)continue;
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#ifndef _WIN64
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addr=MemDbg::findPushAddress(addr, processStartAddress, processStopAddress);
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if(!addr)continue;
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addr=SafeFindEnclosingAlignedFunction(addr, 0x200);
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#else
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addr=findleaaddr(addr, processStartAddress, processStopAddress);
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if(!addr)continue;
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BYTE sig1[]={
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0xCC,
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0x48,0x89,XX,0x24,XX,
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};
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BYTE sig2[]={
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0xC3,
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0x48,0x89,XX,0x24,XX,
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};
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BYTE sig3[]={
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0xCC,
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0x89,XX,0x24,XX,
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};
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BYTE sig4[]={
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0xC3,
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0x89,XX,0x24,XX,
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};
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int idx=0;
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uintptr_t maxaddr=0;
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for(auto sig:{sig1,sig2,sig3,sig4})
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{
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idx+=1;
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maxaddr=max(maxaddr,reverseFindBytes(sig,(idx>2)?5:6,addr-0x500,addr,1,true));
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}
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maxaddr=max(maxaddr,MemDbg::findEnclosingAlignedFunction_strict(addr,0x500));
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addr=maxaddr;
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#endif
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if(!addr)continue;
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HookParam hp;
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hp.address=addr;
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hp.type = function.hookType;
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hp.offset=function.argIndex;
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hp.split = function.hookSplit;
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if (hp.split)hp.type |= USING_SPLIT;
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succ|=NewHook(hp, function.hookName);
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}
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return succ;
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}
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#if 0
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bool PPSSPPinithooksearch(){
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bool found = false;
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SYSTEM_INFO systemInfo;
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GetNativeSystemInfo(&systemInfo);
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for (BYTE* probe = NULL; probe < systemInfo.lpMaximumApplicationAddress;)
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{
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MEMORY_BASIC_INFORMATION info;
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if (!VirtualQuery(probe, &info, sizeof(info)))
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{
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probe += systemInfo.dwPageSize;
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}
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else
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{
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if (info.RegionSize == 0x1f00000 && info.Protect == PAGE_READWRITE && info.Type == MEM_MAPPED)
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{
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found = true;
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ConsoleOutput("PPSSPP memory found: searching for hooks should yield working hook codes");
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#ifndef _WIN64
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// PPSSPP 1.8.0 compiles jal to sub dword ptr [ebp+0x360],??
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memcpy(spDefault.pattern, Array<BYTE>{ 0x83, 0xAD, 0x60, 0x03, 0x00, 0x00 }, spDefault.length = 6);
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#else
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// PPSSPP 1.8.0 compiles jal to sub dword ptr [r14+0x360],??
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memcpy(spDefault.pattern, Array<BYTE>{ 0x41, 0x83, 0xae, 0x60, 0x03, 0x00, 0x00 }, spDefault.length = 7);
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#endif
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spDefault.offset = 0;
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spDefault.minAddress = 0;
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spDefault.maxAddress = -1ULL;
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spDefault.padding = (uintptr_t)probe - 0x8000000;
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spDefault.hookPostProcessor = [](HookParam& hp)
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{
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hp.type |= NO_CONTEXT | USING_SPLIT | SPLIT_INDIRECT;
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#ifndef _WIN64
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hp.split = get_reg(regs::ebp);
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hp.split_index =get_reg(regs::eax); // this is where PPSSPP 1.8.0 stores its return address stack
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#else
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hp.split = get_reg(regs::r14);
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hp.split_index = -8; // this is where PPSSPP 1.8.0 stores its return address stack
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#endif
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};
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}
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probe += info.RegionSize;
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}
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}
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return found;
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}
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#endif
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uintptr_t getDoJitAddress() {
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#ifndef _WIN64
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auto string1="Jump target too far away, needs indirect register";
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auto string2="Jump target too far away, needs force5Bytes = true";
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auto addr1 = MemDbg::findBytes(string1, ::strlen(string1), processStartAddress, processStopAddress);
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auto addr2 = MemDbg::findBytes(string2, ::strlen(string2), processStartAddress, processStopAddress);
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if(addr1==0||addr2==0)return 0;
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//都是被push两次，但是都是第一个
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addr1=MemDbg::findPushAddress(addr1, processStartAddress, processStopAddress);
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addr2=MemDbg::findPushAddress(addr2, processStartAddress, processStopAddress);
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if(addr1==0||addr2==0)return 0;
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addr1=MemDbg::findEnclosingAlignedFunction_strict(addr1,0x100);
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addr2=MemDbg::findEnclosingAlignedFunction_strict(addr2,0x100);
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if(addr1==0||addr2==0||addr1!=addr2)return 0;
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auto xrefs=findxref_reverse_checkcallop(addr1,processStartAddress,processStopAddress,0xe8);
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if(xrefs.size()<28)return 0;
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addr1=MemDbg::findEnclosingAlignedFunction_strict(xrefs[xrefs.size()-1-3],0x400);
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addr2=MemDbg::findEnclosingAlignedFunction_strict(xrefs[xrefs.size()-1-4],0x400);
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if(addr1==0||addr2==0||addr1!=addr2)return 0;
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return addr1;
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#else
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auto DoJitSig1 = "C7 83 ?? 0? 00 00 11 00 00 00 F6 83 ?? 0? 00 00 01 C7 83 ?? 0? 00 00 E4 00 00 00";
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auto first=find_pattern(DoJitSig1,processStartAddress,processStopAddress);
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if (first) {
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auto beginSubSig1 = "55 41 ?? 41 ?? 41";
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auto lookbackSize = 0x400;
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auto address=first-lookbackSize;
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auto subs=find_pattern(beginSubSig1,address,address+lookbackSize);
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if(subs){
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return subs;
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}
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}
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else
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{
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auto DoJitSig2 = "C7 83 ?? 0? 00 00 11 00 00 00 F6 83 ?? 0? 00 00 01 ?? ?? ?? ?? ?? ?? ?? C7 83 ?? 0? 00 00 E4 00 00 00";
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first=find_pattern(DoJitSig2,processStartAddress,processStopAddress);
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if (first) {
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first=MemDbg::findEnclosingAlignedFunction_strict(first,0x400);
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return first;
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}
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}
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#endif
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return 0;
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}
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namespace ppsspp{
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bool checkiscurrentgame(const emfuncinfo& em){
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auto wininfos=get_proc_windows();
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for(auto&& info:wininfos){
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if(info.title.find(acastw(em._id))!=info.title.npos)return true;
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}
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return false;
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}
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std::unordered_set<uintptr_t>breakpoints;
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inline bool IsValidAddress(const uintptr_t address) {
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if ((address & 0x3E000000) == 0x08000000) {
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return true;
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} else if ((address & 0x3F800000) == 0x04000000) {
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return true;
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} else if ((address & 0xBFFFC000) == 0x00010000) {
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return true;
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} else if ((address & 0x3F000000) >= 0x08000000){// && (address & 0x3F000000) < 0x08000000 + g_MemorySize) {
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return true;
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} else {
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return false;
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}
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}
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void dohookemaddr(uintptr_t em_address,uintptr_t ret){
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jitaddraddr(em_address,ret,JITTYPE::PPSSPP);
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if(emfunctionhooks.find(em_address)==emfunctionhooks.end())return;
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if(!(checkiscurrentgame(emfunctionhooks.at(em_address))))return;
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auto op=emfunctionhooks.at(em_address);
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ConsoleOutput("jit function addr %p",ret);
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#ifndef _WIN64
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BYTE sig[]={
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0x8b,XX2,//mov reg,[ebp-off]
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0x8b,0xc6,//mov eax,esi
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0x25,0xff,0xff,0xff,0x3f,//and eax,0x3fffffff
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0x89,XX,XX4,//mov [eax+base+off],reg
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};
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auto findbase=MemDbg::findBytes(sig,sizeof(sig),ret,ret+0x20);
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if(!findbase)
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findbase=MemDbg::findBytes(sig,sizeof(sig),ret-0x1000,ret+0x1000);
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if(!findbase)
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ConsoleOutput("can't find emu_baseaddr");
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PPSSPP::x86_baseaddr=(*(DWORD*)(findbase+12))&0xffff0000;
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ConsoleOutput("x86 base addr %p",PPSSPP::x86_baseaddr);
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#endif
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HookParam hpinternal;
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hpinternal.address=ret;
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hpinternal.emu_addr=em_address;//用于生成hcode
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hpinternal.type=USING_STRING|NO_CONTEXT|BREAK_POINT|op.type;
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hpinternal.text_fun=(decltype(hpinternal.text_fun))op.hookfunc;
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hpinternal.filter_fun=(decltype(hpinternal.filter_fun))op.filterfun;
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hpinternal.argidx=op.argidx;
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hpinternal.padding=op.padding;
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hpinternal.jittype=JITTYPE::PPSSPP;
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NewHook(hpinternal,op._id);
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}
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namespace{
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typedef DWORD u32;
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typedef BYTE u8;
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typedef WORD u16;
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const int MAX_JIT_BLOCK_EXITS = 8;
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namespace Memory {
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struct Opcode {
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Opcode() {
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}
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explicit Opcode(u32 v) : encoding(v) {
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}
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u32 operator & (const u32& arg) const {
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return encoding & arg;
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}
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u32 operator >> (const u32& arg) const {
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return encoding >> arg;
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}
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bool operator == (const u32& arg) const {
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return encoding == arg;
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}
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bool operator != (const u32& arg) const {
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return encoding != arg;
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}
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u32 encoding;
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};
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}
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typedef Memory::Opcode MIPSOpcode;
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struct JitBlock {
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bool ContainsAddress(u32 em_address) const;
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const u8* checkedEntry; // const, we have to translate to writable.
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const u8* normalEntry;
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u8* exitPtrs[MAX_JIT_BLOCK_EXITS]; // to be able to rewrite the exit jump
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u32 exitAddress[MAX_JIT_BLOCK_EXITS]; // 0xFFFFFFFF == unknown
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u32 originalAddress;
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MIPSOpcode originalFirstOpcode; //to be able to restore
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uint64_t compiledHash;
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u16 codeSize;
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u16 originalSize;
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u16 blockNum;
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bool invalid;
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bool linkStatus[MAX_JIT_BLOCK_EXITS];
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#ifdef USE_VTUNE
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char blockName[32];
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#endif
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// By having a pointer, we avoid a constructor/destructor being generated and dog slow
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// performance in debug.
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std::vector<u32>* proxyFor;
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bool IsPureProxy() const {
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return originalFirstOpcode.encoding == 0x68FF0000;
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}
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void SetPureProxy() {
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// Magic number that won't be a real opcode.
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originalFirstOpcode.encoding = 0x68FF0000;
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}
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};
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}
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void unsafeoncegetJitBlockCache(hook_stack* stack){
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//class JitBlockCache : public JitBlockCacheDebugInterface {
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//...
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//JitBlock *blocks_ = nullptr;
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//std::unordered_multimap<u32, int> proxyBlockMap_; ->64
|
||
//int num_blocks_ = 0;
|
||
#ifdef _WIN64
|
||
auto num_blocks_=*(uint32_t*)(stack->rcx+72+16+88);
|
||
auto blocks_=(JitBlock*)*(uintptr_t*)(stack->rcx+72+16+88-64-8);
|
||
#else
|
||
auto num_blocks_=*(uint32_t*)(stack->ecx+88);
|
||
auto blocks_=(JitBlock*)*(uintptr_t*)(stack->ecx+88-32-4);
|
||
#endif
|
||
int checkvalid=0;
|
||
num_blocks_-=1;//last one is now dojiting
|
||
for(int i=0;i<num_blocks_;i++){
|
||
if(IsValidAddress(blocks_[i].originalAddress) && blocks_[i].normalEntry)
|
||
checkvalid+=1;
|
||
}
|
||
if(checkvalid<num_blocks_/2)return;
|
||
|
||
for(int i=0;i<num_blocks_;i++){
|
||
if(IsValidAddress(blocks_[i].originalAddress) && blocks_[i].normalEntry){
|
||
dohookemaddr(blocks_[i].originalAddress,(uintptr_t)blocks_[i].normalEntry);
|
||
delayinsertNewHook(blocks_[i].originalAddress);
|
||
}
|
||
}
|
||
|
||
return;
|
||
}
|
||
bool oncegetJitBlockCache(hook_stack* stack){
|
||
//在游戏中途hook，获取已compiled jit
|
||
//虽然只有在每次进行jit时才会触发，不过测试后续触发的也挺频繁的。
|
||
__try{
|
||
unsafeoncegetJitBlockCache(stack);
|
||
}__except (EXCEPTION_EXECUTE_HANDLER) {}
|
||
return true;
|
||
}
|
||
bool hookPPSSPPDoJit(){
|
||
auto DoJitPtr=getDoJitAddress();
|
||
if(DoJitPtr==0)return false;
|
||
spDefault.jittype=JITTYPE::PPSSPP;
|
||
spDefault.minAddress = 0;
|
||
spDefault.maxAddress = -1;
|
||
HookParam hp;
|
||
hp.address=DoJitPtr;//Jit::DoJit
|
||
ConsoleOutput("DoJitPtr %p",DoJitPtr);
|
||
hp.user_value=(uintptr_t)new uintptr_t;
|
||
hp.text_fun=[](hook_stack* stack, HookParam* hp, uintptr_t* data, uintptr_t* split, size_t* len){
|
||
static auto once1=oncegetJitBlockCache(stack);
|
||
auto em_address=stack->THISCALLARG1;
|
||
|
||
*(uintptr_t*)(hp->user_value)=em_address;
|
||
|
||
HookParam hpinternal;
|
||
hpinternal.user_value=hp->user_value;
|
||
hpinternal.address=stack->retaddr;
|
||
hpinternal.text_fun=[](hook_stack* stack, HookParam* hp, uintptr_t* data, uintptr_t* split, size_t* len){
|
||
auto em_address=*(uintptr_t*)(hp->user_value);
|
||
if(!IsValidAddress(em_address))return;
|
||
[&](){
|
||
auto ret=stack->RETADDR;
|
||
if(breakpoints.find(ret)!=breakpoints.end())return;
|
||
breakpoints.insert(ret);
|
||
|
||
dohookemaddr(em_address,ret);
|
||
}();
|
||
delayinsertNewHook(em_address);
|
||
};
|
||
static auto once=NewHook(hpinternal,"DoJitPtrRet");
|
||
};
|
||
|
||
return NewHook(hp,"PPSSPPDoJit");
|
||
}
|
||
}
|
||
bool InsertPPSSPPcommonhooks()
|
||
{
|
||
|
||
auto succ=InsertPPSSPPHLEHooks();
|
||
succ|=ppsspp::hookPPSSPPDoJit();
|
||
return succ;
|
||
} |