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fpPS4/ps4_elf.pas
Pavel 2dc4d5304c hamt backport and bugfixes
2023-11-08 12:56:20 +03:00

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unit ps4_elf;
{$mode objfpc}{$H+}
interface
uses
Windows,
sha1,
sys_types,
sys_kernel,
ps4libdoc,
ps4_program,
ps4_elf_tls,
Classes,
SysUtils;
type
t_user_malloc_init =function():Integer; SysV_ABI_CDecl;
t_user_malloc_finalize =function():Integer; SysV_ABI_CDecl;
t_user_malloc =function(size:qword):Pointer; SysV_ABI_CDecl;
t_user_free =procedure(ptr:Pointer); SysV_ABI_CDecl;
t_user_calloc =function(nelem,count:qword):Pointer; SysV_ABI_CDecl;
t_user_realloc =function(ptr:Pointer;size:qword):Pointer; SysV_ABI_CDecl;
t_user_memalign =function(align,size:qword):Pointer; SysV_ABI_CDecl;
t_user_reallocalign =function(ptr:Pointer;size,align:qword):Pointer; SysV_ABI_CDecl;
t_user_posix_memalign =function(ptr:PPointer;align,size:qword):Integer; SysV_ABI_CDecl;
t_user_malloc_stats =function(mmsize:Pointer):Integer; SysV_ABI_CDecl;
t_user_malloc_stats_fast =function(mmsize:Pointer):Integer; SysV_ABI_CDecl;
t_user_malloc_usable_size=function(ptr:Pointer):qword; SysV_ABI_CDecl;
PsceLibcMallocReplace=^TsceLibcMallocReplace;
TsceLibcMallocReplace=packed record
Size:QWORD;
Unknown1:QWORD; //00000001
user_malloc_init :t_user_malloc_init;
user_malloc_finalize :t_user_malloc_finalize;
user_malloc :t_user_malloc;
user_free :t_user_free;
user_calloc :t_user_calloc;
user_realloc :t_user_realloc;
user_memalign :t_user_memalign;
user_reallocalign :t_user_reallocalign;
user_posix_memalign :t_user_posix_memalign;
user_malloc_stats :t_user_malloc_stats;
user_malloc_stats_fast :t_user_malloc_stats_fast;
user_malloc_usable_size:t_user_malloc_usable_size;
end;
t_user_new_1 =function(size:qword):Pointer; SysV_ABI_CDecl;
t_user_new_2 =function(size:qword;throw:Pointer):Pointer; SysV_ABI_CDecl;
t_user_new_array_1 =function(size:qword):Pointer; SysV_ABI_CDecl;
t_user_new_array_2 =function(size:qword;throw:Pointer):Pointer; SysV_ABI_CDecl;
t_user_delete_1 =procedure(ptr:Pointer); SysV_ABI_CDecl;
t_user_delete_2 =procedure(ptr:Pointer;throw:Pointer); SysV_ABI_CDecl;
t_user_delete_array_1=procedure(ptr:Pointer); SysV_ABI_CDecl;
t_user_delete_array_2=procedure(ptr:Pointer;throw:Pointer); SysV_ABI_CDecl;
t_user_delete_3 =procedure(ptr:Pointer;size:qword); SysV_ABI_CDecl;
t_user_delete_4 =procedure(ptr:Pointer;size:qword;throw:Pointer); SysV_ABI_CDecl;
t_user_delete_array_3=procedure(ptr:Pointer;size:qword); SysV_ABI_CDecl;
t_user_delete_array_4=procedure(ptr:Pointer;size:qword;throw:Pointer); SysV_ABI_CDecl;
PsceLibcNewReplace=^TsceLibcNewReplace;
TsceLibcNewReplace=packed record
Size:QWORD;
Unknown1:QWORD; //00000002
user_new_1 :t_user_new_1;
user_new_2 :t_user_new_2;
user_new_array_1 :t_user_new_array_1;
user_new_array_2 :t_user_new_array_2;
user_delete_1 :t_user_delete_1;
user_delete_2 :t_user_delete_2;
user_delete_array_1:t_user_delete_array_1;
user_delete_array_2:t_user_delete_array_2;
user_delete_3 :t_user_delete_3;
user_delete_4 :t_user_delete_4;
user_delete_array_3:t_user_delete_array_3;
user_delete_array_4:t_user_delete_array_4;
end;
t_user_malloc_init_for_tls =function():Integer; SysV_ABI_CDecl;
t_user_malloc_fini_for_tls =function():Integer; SysV_ABI_CDecl;
t_user_malloc_for_tls =function(size:qword):Pointer; SysV_ABI_CDecl;
t_user_posix_memalign_for_tls=function(ptr:PPointer;align,size:qword):Integer; SysV_ABI_CDecl;
t_user_free_for_tls =procedure(ptr:Pointer); SysV_ABI_CDecl;
PsceLibcMallocReplaceForTls=^TsceLibcMallocReplaceForTls;
TsceLibcMallocReplaceForTls=packed record
Size:QWORD;
Unknown1:QWORD; //00000001
user_malloc_init_for_tls :t_user_malloc_init_for_tls;
user_malloc_fini_for_tls :t_user_malloc_fini_for_tls;
user_malloc_for_tls :t_user_malloc_for_tls;
user_posix_memalign_for_tls:t_user_posix_memalign_for_tls;
user_free_for_tls :t_user_free_for_tls;
end;
PSceLibcParam=^TSceLibcParam;
TSceLibcParam=packed record
Size:QWORD;
entry_count:DWORD;
SceLibcInternalHeap :DWORD; //1 //(entry_count > 1)
sceLibcHeapSize :PDWORD;
sceLibcHeapDelayedAlloc :PDWORD;
sceLibcHeapExtendedAlloc :PDWORD;
sceLibcHeapInitialSize :PDWORD;
_sceLibcMallocReplace :PsceLibcMallocReplace;
_sceLibcNewReplace :PsceLibcNewReplace;
sceLibcHeapHighAddressAlloc :PQWORD; //(entry_count > 2)
Need_sceLibc :PDWORD;
sceLibcHeapMemoryLock :PQWORD; //(entry_count > 4)
sceKernelInternalMemorySize :PQWORD;
_sceLibcMallocReplaceForTls :PsceLibcMallocReplaceForTls;
//The maximum amount of the memory areas for the mspace. min:0x1000000
sceLibcMaxSystemSize :PQWORD; //(entry_count > 7)
sceLibcHeapDebugFlags :PQWORD; //(entry_count > 8)
sceLibcStdThreadStackSize :PDWORD;
Unknown3:QWORD;
sceKernelInternalMemoryDebugFlags:PDWORD;
sceLibcWorkerThreadNum :PDWORD;
sceLibcWorkerThreadPriority :PDWORD;
sceLibcThreadUnnamedObjects :PDWORD;
end;
PSceKernelMemParam=^TSceKernelMemParam;
TSceKernelMemParam=packed record
Size:QWORD;
sceKernelExtendedPageTable :PQWORD;
sceKernelFlexibleMemorySize :PQWORD;
sceKernelExtendedMemory1 :PByte;
sceKernelExtendedGpuPageTable:PQWORD;
sceKernelExtendedMemory2 :PByte;
sceKernelExtendedCpuPageTable:PQWORD;
end;
PSceKernelFsParam=^TSceKernelFsParam;
TSceKernelFsParam=packed record
Size:QWORD;
sceKernelFsDupDent :PDWORD;
sceWorkspaceUpdateMode:Pointer;
sceTraceAprNameMode :Pointer;
end;
PSceProcParam=^TSceProcParam;
TSceProcParam=packed record
Header:packed record
Size:QWORD; //0x50
Magic:DWORD; //"ORBI" //0x4942524F
Entry_count:DWORD; //>=1
SDK_version:QWORD; //0x4508101
end;
sceProcessName :PChar;
sceUserMainThreadName :PChar;
sceUserMainThreadPriority :PDWORD;
sceUserMainThreadStackSize:PDWORD;
_sceLibcParam :PSceLibcParam;
_sceKernelMemParam :PSceKernelMemParam;
_sceKernelFsParam :PSceKernelFsParam;
sceProcessPreloadEnabled :PDWORD;
Unknown1 :QWORD;
end;
Telf_file=class;
PRelaInfo=^TRelaInfo;
TRelaInfo=packed record
pName:PChar;
value:QWORD;
Offset:QWORD;
Addend:QWORD;
rType:DWORD;
sBind:Byte;
sType:Byte;
shndx:Word;
end;
TOnRelaInfoCb=Procedure(elf:Telf_file;Info:PRelaInfo;data:Pointer);
PResolveImportInfo=^TResolveImportInfo;
TResolveImportInfo=packed record
pName:PChar;
_md:PMODULE;
lib:PLIBRARY;
nid:QWORD;
Offset:QWORD;
rType:DWORD;
sBind:Byte;
sType:Byte;
end;
TResolveImportCb=function(elf:Telf_file;Info:PResolveImportInfo;data:Pointer):Pointer;
Telf_file=class(TElf_node)
pSceFileName:RawByteString;
mElf:TMemChunk;
mMap:TMemChunk;
ModuleInfo:SceKernelModuleInfo;
ro_segments:array[0..3] of TMemChunk;
pEntry:QWORD;
dtInit:QWORD;
dtFini:QWORD;
pProcParam :QWORD;
pModuleParam :QWORD;
dtflags:QWORD;
pTls:packed record
tmpl_start:QWORD;
tmpl_size :QWORD;
full_size :QWORD;
align :QWORD;
index :QWORD;
offset :Int64;
stub:TMemChunk;
end;
pInit:packed record
dt_preinit_array,
dt_preinit_array_count:QWORD;
dt_init_array,
dt_init_array_count:QWORD;
end;
eh_frame_hdr:packed record
addr:QWORD;
size:QWORD;
end;
eh_frame:packed record
addr:QWORD;
size:QWORD;
end;
pSceDynLib:TMemChunk; //mElf
pDynEnt :PElf64_Dyn; //mElf
nDynEntCount:DWord; //mElf
pSymTab:PElf64_Sym; //pSceDynLib
nSymTabCount:Int64; //pSceDynLib
pStrTable:PAnsiChar; //pSceDynLib
nStrTabSize:Int64; //pSceDynLib
pRelaEntries:Pelf64_rela; //pSceDynLib
nRelaCount:Int64; //pSceDynLib
pPltRela:PElf64_Rela; //pSceDynLib
nPltRelaCount:Int64; //pSceDynLib
nPltRelType:Int64;
protected
function PreparePhdr:Boolean;
procedure PrepareTables(var entry:Elf64_Dyn);
procedure ParseSingleDynEntry(var entry:Elf64_Dyn);
function PrepareDynTables:Boolean;
procedure _calculateTotalLoadableSize(elf_phdr:Pelf64_phdr;s:SizeInt);
procedure _mapSegment(phdr:PElf64_Phdr;const name:PChar);
procedure _addSegment(phdr:PElf64_Phdr;const name:PChar);
function _ro_seg_len:Integer;
function _ro_seg_find_lo(adr:Pointer):Integer;
function _ro_seg_find_hi(adr:Pointer):Integer;
procedure _add_ro_seg(phdr:PElf64_Phdr);
procedure _print_rdol;
function _ro_seg_adr_in(adr:Pointer;size:QWORD):Boolean;
procedure _find_tls_stub(elf_phdr:Pelf64_phdr;s:SizeInt);
function MapImageIntoMemory:Boolean;
function RelocateRelaEnum(cbs:TOnRelaInfoCb;data:Pointer):Boolean;
function RelocatePltRelaEnum(cbs:TOnRelaInfoCb;data:Pointer):Boolean;
function ParseSymbolsEnum(cbs:TOnRelaInfoCb;data:Pointer):Boolean;
function LoadSymbolExport:Boolean;
procedure _PatchTls(Addr:PByte;Size:QWORD);
procedure PatchTls;
procedure mapProt;
procedure mapCodeInit;
Procedure ClearElfFile;
function _init_tls(is_static:QWORD):Ptls_tcb;
public
function _get_tls:Ptls_tcb;
Procedure Clean; override;
function SavePs4ElfToFile(Const name:RawByteString):Boolean;
function Prepare:Boolean; override;
Procedure LoadSymbolImport(cbs,data:Pointer); override;
Procedure ReLoadSymbolImport(cbs,data:Pointer); override;
function DympSymbol(F:THandle):Boolean;
procedure InitThread(is_static:QWORD); override;
Procedure InitProt; override;
Procedure InitCode; override;
function module_start(argc:size_t;argp,param:PPointer):Integer; override;
function GetCodeFrame:TMemChunk; override;
function GetEntry:Pointer; override;
function GetdInit:Pointer; override;
function GetdFini:Pointer; override;
Function GetModuleInfo:SceKernelModuleInfo; override;
Function GetModuleInfoEx:SceKernelModuleInfoEx; override;
procedure mapCodeEntry;
end;
type
TinitProc =function(argc:Integer;argv,environ:PPchar):Integer; SysV_ABI_CDecl; //preinit_array/init_array
TEntryPoint =procedure(pEnv:Pointer;pfnExitHandler:Pointer); SysV_ABI_CDecl; //EntryPoint
TmoduleStart=function(argc:size_t;argp,proc:Pointer):Integer; SysV_ABI_CDecl; //module_start/module_stop
function LoadPs4ElfFromFile(Const name:RawByteString):TElf_node;
function ps4_nid_hash(const name:RawByteString):QWORD;
function EncodeValue64(nVal:QWORD):RawByteString;
function DecodeValue64(strEnc:PAnsiChar;len:SizeUint;var nVal:QWORD):Boolean;
function DecodeEncName(strEncName:PAnsiChar;var nModuleId,nLibraryId:WORD;var nNid:QWORD):Boolean;
function _dynamic_tls_get_addr(ti:PTLS_index):Pointer; SysV_ABI_CDecl;
procedure SetTlsBase(p:Pointer); assembler;
function GetTlsBase:Pointer; assembler;
implementation
Procedure Telf_file.ClearElfFile;
begin
if (Self=nil) then Exit;
FreeMem(mElf.pAddr);
mElf:=Default(TMemChunk);
pSceDynLib:=Default(TMemChunk);
pDynEnt :=nil;
nDynEntCount :=0;
pSymTab :=nil;
nSymTabCount :=0;
pStrTable :=nil;
nStrTabSize :=0;
pRelaEntries :=nil;
nRelaCount :=0;
pPltRela :=nil;
nPltRelaCount:=0;
end;
Procedure Telf_file.Clean;
begin
if (Self=nil) then Exit;
ClearElfFile;
FreeMem(mElf.pAddr);
if (mMap.pAddr<>nil) then
begin
VirtualFree(mMap.pAddr,0,MEM_RELEASE);
end;
pSceFileName:='';
inherited;
end;
function test_SF_flags(flags:QWORD):RawByteString;
begin
Result:='';
if (flags and SF_ORDR)<>0 then Result:=Result+' SF_ORDR';
if (flags and SF_ENCR)<>0 then Result:=Result+' SF_ENCR';
if (flags and SF_SIGN)<>0 then Result:=Result+' SF_SIGN';
if (flags and SF_DFLG)<>0 then Result:=Result+' SF_DFLG';
if (flags and SF_BFLG)<>0 then Result:=Result+' SF_BFLG';
end;
function maxInt64(a,b:Int64):Int64; inline;
begin
if (a>b) then Result:=a else Result:=b;
end;
function minInt64(a,b:Int64):Int64; inline;
begin
if (a<b) then Result:=a else Result:=b;
end;
function LoadPs4ElfFromFile(Const name:RawByteString):TElf_node;
Var
elf:Telf_file;
F:THandle;
i:SizeInt;
self_header:Tself_header;
Segments:Pself_segment;
SELF:TMemChunk;
elf_hdr:Pelf64_hdr;
elf_phdr:Pelf64_phdr;
LowSeg,s:Int64;
Num_Segments:Word;
function _test_self(self_header:Pself_header):Boolean;
begin
Result:=False;
Writeln('SELF.Content_Type=',HexStr(self_header^.Content_Type,2));
Writeln('SELF.Program_Type=',HexStr(self_header^.Program_Type,2));
Writeln('SELF.Header_Size =',HexStr(self_header^.Header_Size,4));
Writeln('SELF.Sign_Size =',HexStr(self_header^.Sign_Size,4));
Writeln('SELF.Size_of =',HexStr(self_header^.Size_of,8));
Writeln('SELF.Num_Segments=',self_header^.Num_Segments);
if (self_header^.Num_Segments=0) then Exit;
Result:=True;
end;
function _test_elf(elf_hdr:Pelf64_hdr):Boolean;
begin
Result:=False;
if PDWORD(@elf_hdr^.e_ident)^<>ELFMAG then
begin
Writeln(StdErr,name,' ELF identifier mismatch:',HexStr(PDWORD(@elf_hdr^.e_ident)^,8));
Exit;
end;
Case elf_hdr^.e_type of
ET_SCE_EXEC :;
ET_SCE_REPLAY_EXEC:;
ET_SCE_RELEXEC :;
ET_SCE_DYNEXEC :;
ET_SCE_DYNAMIC :;
else
begin
Writeln(StdErr,name,' unspported TYPE:',HexStr(elf_hdr^.e_type,4));
Exit;
end;
end;
if (elf_hdr^.e_machine<>EM_X86_64) then
begin
Writeln(StdErr,name,' unspported ARCH:',elf_hdr^.e_machine);
Exit;
end;
Writeln('hdr.[EI_CLASS] :',elf_hdr^.e_ident[EI_CLASS]);
Writeln('hdr.[EI_DATA] :',elf_hdr^.e_ident[EI_DATA]);
Writeln('hdr.[EI_VERSION]:',elf_hdr^.e_ident[EI_VERSION]);
Writeln('hdr.[EI_OSABI] :',elf_hdr^.e_ident[EI_OSABI]);
Writeln('hdr.e_type :',HexStr(elf_hdr^.e_type,4));
Writeln('hdr.e_machine :',HexStr(elf_hdr^.e_machine,4));
Writeln('hdr.e_version :',HexStr(elf_hdr^.e_version,4));
Writeln('hdr.e_entry :',HexStr(elf_hdr^.e_entry,16));
Writeln('hdr.e_phoff :',HexStr(elf_hdr^.e_phoff,16));
Writeln('hdr.e_shoff :',HexStr(elf_hdr^.e_shoff,16));
Writeln('hdr.e_flags :',HexStr(elf_hdr^.e_flags,8));
Writeln('hdr.e_ehsize :',HexStr(elf_hdr^.e_ehsize,4));
Writeln('hdr.e_phentsize :',HexStr(elf_hdr^.e_phentsize,4));
Writeln('hdr.e_phnum :',elf_hdr^.e_phnum);
Writeln('hdr.e_shentsize :',HexStr(elf_hdr^.e_shentsize,4));
Writeln('hdr.e_shnum :',elf_hdr^.e_shnum );
Writeln('hdr.e_shstrndx :',HexStr(elf_hdr^.e_shstrndx,4));
if (elf_hdr^.e_phnum=0) then Exit;
Result:=True;
end;
begin
Result:=nil;
if (name='') then Exit;
F:=FileOpen(name,fmOpenRead);
if (F=feInvalidHandle) then Exit;
FileRead(F,self_header.Magic,SizeOf(DWORD));
case self_header.Magic of
ELFMAG:
begin
SELF.nSize:=FileSeek(F,0,fsFromEnd);
if (SELF.nSize<=0) then
begin
Writeln(StdErr,'Error read file:',name);
FileClose(F);
Exit;
end;
SELF.pAddr:=GetMem(SELF.nSize);
FileSeek(F,0,fsFromBeginning);
s:=FileRead(F,SELF.pAddr^,SELF.nSize);
FileClose(F);
if (s<>SELF.nSize) then
begin
Writeln(StdErr,'Error read file:',name);
FreeMem(SELF.pAddr);
Exit;
end;
if not _test_elf(SELF.pAddr) then
begin
Writeln(StdErr,'Error test file:',name);
FreeMem(SELF.pAddr);
Exit;
end;
elf:=Telf_file.Create;
elf.mElf:=SELF;
elf._set_filename(name);
Result:=elf;
end;
self_magic:
begin
SELF.nSize:=FileSeek(F,0,fsFromEnd);
if (SELF.nSize<=0) then
begin
Writeln(StdErr,'Error read file:',name);
FileClose(F);
Exit;
end;
SELF.pAddr:=GetMem(SELF.nSize);
FileSeek(F,0,fsFromBeginning);
s:=FileRead(F,SELF.pAddr^,SELF.nSize);
FileClose(F);
if (s<>SELF.nSize) then
begin
Writeln(StdErr,'Error read file:',name);
FreeMem(SELF.pAddr);
Exit;
end;
if not _test_self(SELF.pAddr) then
begin
FreeMem(SELF.pAddr);
Exit;
end;
Num_Segments:=Pself_header(SELF.pAddr)^.Num_Segments;
Segments:=SELF.pAddr+SizeOf(Tself_header);
For i:=0 to Num_Segments-1 do
begin
if (Segments[i].flags and (SF_ENCR or SF_DFLG))<>0 then
begin
Writeln(StdErr,'[',i,']');
Writeln(StdErr,' Seg.flags =',test_SF_flags(Segments[i].flags));
Writeln(StdErr,' Seg.id =',Segments[i].flags shr 20);
Writeln(StdErr,' Seg.offset=',HexStr(Segments[i].offset,16));
Writeln(StdErr,' Seg.c_size=',HexStr(Segments[i].encrypted_compressed_size,16));
Writeln(StdErr,' Seg.d_size=',HexStr(Segments[i].decrypted_decompressed_size,16));
Writeln(StdErr,'encrypted or deflated SELF not support!');
FreeMem(SELF.pAddr);
Exit;
end;
end;
elf_hdr:=Pointer(Segments)+(Num_Segments*SizeOf(Tself_segment));
if not _test_elf(elf_hdr) then
begin
Writeln(StdErr,'Error test file:',name);
FreeMem(SELF.pAddr);
Exit;
end;
elf_phdr:=Pointer(elf_hdr)+SizeOf(elf64_hdr);
LowSeg:=High(Int64);
elf:=Telf_file.Create;
elf.mElf.nSize:=0;
For i:=0 to elf_hdr^.e_phnum-1 do
begin
s:=elf_phdr[i].p_offset;
if (s<>0) then
begin
LowSeg:=MinInt64(s,LowSeg);
end;
s:=s+elf_phdr[i].p_filesz;
elf.mElf.nSize:=MaxInt64(s,elf.mElf.nSize);
end;
if (LowSeg=High(Int64)) then
begin
LowSeg:=0;
end;
s:=ptruint(elf_hdr)-ptruint(SELF.pAddr); //offset
s:=MaxInt64(SELF.nSize,s)-s; //size
LowSeg:=MinInt64(LowSeg,s); //trunc
elf.mElf.pAddr:=AllocMem(elf.mElf.nSize);
Writeln('Elf with LowSeg:',LowSeg,' Size:',elf.mElf.nSize);
Move(elf_hdr^,elf.mElf.pAddr^,LowSeg);
For i:=0 to Num_Segments-1 do
if ((Segments[i].flags and SF_BFLG)<>0) then
begin
s:=(Segments[i].flags shr 20) and $FFF;
Move(Pointer(SELF.pAddr +Segments[i].offset)^, //src
Pointer(elf.mElf.pAddr+elf_phdr[s].p_offset)^, //dst
Segments[i].encrypted_compressed_size);
end;
FreeMem(SELF.pAddr);
elf._set_filename(name);
Result:=elf;
end;
else
begin
FileClose(F);
Writeln(StdErr,name,' is unknow file type:',HexStr(self_header.Magic,8));
end;
end;
end;
function Telf_file.SavePs4ElfToFile(Const name:RawByteString):Boolean;
Var
F:THandle;
begin
Result:=False;
if (Self=nil) then Exit;
if (name='') then Exit;
if (mElf.pAddr=nil) or (mElf.nSize=0) then Exit;
F:=FileCreate(name);
if (F=feInvalidHandle) then Exit;
FileWrite(F,mElf.pAddr^,mElf.nSize);
FileClose(F);
end;
function GetStr(p:Pointer;L:SizeUint):RawByteString;
begin
SetString(Result,P,L);
end;
function test_PF_flags(p_flags:Elf64_Word):RawByteString;
begin
Result:='';
if (p_flags and PF_X)<>0 then Result:=Result+' PF_X';
if (p_flags and PF_W)<>0 then Result:=Result+' PF_W';
if (p_flags and PF_R)<>0 then Result:=Result+' PF_R';
end;
function read_encoded_value(hdr:p_eh_frame_hdr;hdr_size,hdr_vaddr:Int64;enc:Byte;var P:Pointer;var res:Int64):Boolean;
var
value:Int64;
endp:Pointer;
begin
Result:=False;
res:=0;
Case (enc and $70) of
DW_EH_PE_absptr:;
DW_EH_PE_pcrel:
begin
res:=(hdr_vaddr + (P - Pointer(hdr)));
end;
DW_EH_PE_datarel:
begin
res:=hdr_vaddr;
end;
else
Exit(True);
end;
value:=0;
endp:=Pointer(hdr) + hdr_size;
Case (enc and $0f) of
DW_EH_PE_udata2:
begin
if (p + 2 > endp) then Exit(True);
value:=PWORD(p)^;
p:=p + 2;
end;
DW_EH_PE_sdata2:
begin
if (p + 2 > endp) then Exit(True);
value:=PSmallint(p)^;
p:=p + 2;
end;
DW_EH_PE_udata4:
begin
if (p + 4 > endp) then Exit(True);
value:=PDWORD(p)^;
p:=p + 4;
end;
DW_EH_PE_sdata4:
begin
if (p + 4 > endp) then Exit(True);
value:=PInteger(p)^;
p:=p + 4;
end;
DW_EH_PE_udata8,
DW_EH_PE_sdata8:
begin
if (p + 8 > endp) then Exit(True);
value:=PInteger(p)^;
p:=p + 8;
end;
DW_EH_PE_absptr:
begin
value:=0;
end;
else
Exit(True);
end;
res:=res+value;
Result:=False;
end;
function parse_eh_frame_hdr(hdr:p_eh_frame_hdr;hdr_size,hdr_vaddr:Int64;var eh_frame_ptr:Int64):Boolean;
var
p:Pointer;
begin
if (hdr^.eh_frame_ptr_enc=DW_EH_PE_omit) then Exit(False);
p:=@hdr^.encoded;
if read_encoded_value(hdr,hdr_size,
hdr_vaddr,
hdr^.eh_frame_ptr_enc,
p,
eh_frame_ptr) then Exit(False);
Result:=True;
end;
function Telf_file.PreparePhdr:Boolean;
Var
i:SizeInt;
elf_hdr:Pelf64_hdr;
elf_phdr:Pelf64_phdr;
P:Pointer;
begin
Result:=False;
ModuleInfo:=Default(SceKernelModuleInfo);
ModuleInfo.size:=SizeOf(SceKernelModuleInfo);
elf_hdr:=mElf.pAddr;
if (elf_hdr=nil) then Exit;
elf_phdr:=Pointer(elf_hdr)+SizeOf(elf64_hdr);
if (elf_hdr^.e_phnum=0) then Exit;
For i:=0 to elf_hdr^.e_phnum-1 do
begin
{
Writeln('[',i,']');
case elf_phdr[i].p_type of
PT_NULL :Writeln(' phdr.PT_NULL');
PT_LOAD :Writeln(' phdr.PT_LOAD ');
PT_DYNAMIC:Writeln(' phdr.PT_DYNAMIC');
PT_INTERP :Writeln(' phdr.PT_INTERP');
PT_NOTE :Writeln(' phdr.PT_NOTE');
PT_SHLIB :Writeln(' phdr.PT_SHLIB');
PT_PHDR :Writeln(' phdr.PT_PHDR');
PT_TLS :Writeln(' phdr.PT_TLS');
PT_GNU_EH_FRAME :Writeln(' phdr.PT_GNU_EH_FRAME');
PT_GNU_STACK :Writeln(' phdr.PT_GNU_STACK');
PT_SCE_RELA :Writeln(' phdr.PT_SCE_RELA');
PT_SCE_DYNLIBDATA :Writeln(' phdr.PT_SCE_DYNLIBDATA');
PT_SCE_RELRO :Writeln(' phdr.PT_SCE_RELRO');
PT_SCE_COMMENT :Writeln(' phdr.PT_SCE_COMMENT');
PT_SCE_VERSION :Writeln(' phdr.PT_SCE_VERSION');
PT_SCE_PROCPARAM :Writeln(' phdr.PT_SCE_PROCPARAM');
PT_SCE_MODULE_PARAM:Writeln(' phdr.PT_SCE_MODULE_PARAM');
else
Writeln(' phdr.',HexStr(elf_phdr[i].p_type,16));
end;
Writeln(' phdr.p_flags =',test_PF_flags(elf_phdr[i].p_flags));
Writeln(' phdr.p_offset=',HexStr(elf_phdr[i].p_offset,16));
Writeln(' phdr.p_memsz =',HexStr(elf_phdr[i].p_memsz,16));
Writeln(' phdr.p_filesz=',HexStr(elf_phdr[i].p_filesz,16));
Writeln(' phdr.p_paddr =',HexStr(elf_phdr[i].p_paddr,16));
Writeln(' phdr.p_vaddr =',HexStr(elf_phdr[i].p_vaddr,16));
Writeln(' phdr.p_align =',HexStr(elf_phdr[i].p_align,16));
}
case elf_phdr[i].p_type of
PT_NOTE:; //skip
PT_LOAD:;//load
PT_SCE_RELRO:;//load
PT_SCE_PROCPARAM:
begin
pProcParam:=elf_phdr[i].p_vaddr;
end;
PT_SCE_MODULE_PARAM:
begin
pModuleParam:=elf_phdr[i].p_vaddr;
end;
PT_INTERP:
begin
P:=mElf.pAddr+elf_phdr[i].p_offset;
Writeln(GetStr(P,elf_phdr[i].p_filesz));
end;
PT_DYNAMIC:
begin
pDynEnt:=mElf.pAddr+elf_phdr[i].p_offset;
nDynEntCount:=elf_phdr[i].p_filesz div sizeof(Elf64_Dyn);
end;
PT_SCE_DYNLIBDATA:
begin
pSceDynLib.pAddr:=mElf.pAddr+elf_phdr[i].p_offset;
pSceDynLib.nSize:=elf_phdr[i].p_filesz;
end;
PT_TLS:
begin
pTls.tmpl_start:=elf_phdr[i].p_vaddr;
pTls.tmpl_size :=elf_phdr[i].p_filesz;
pTls.full_size :=elf_phdr[i].p_memsz;
pTls.align :=elf_phdr[i].p_align;
pTls.index :=PtrUint(Self);// module id
pTls.offset :=-pTls.full_size; //offset in static
//Assert(IsAlign(elf.pTls.tmpl_start,elf.pTls.align));
Writeln('tmpl_size:',pTls.tmpl_size,' full_size:',pTls.full_size);
end;
PT_SCE_COMMENT:
begin
end;
PT_SCE_VERSION:
begin
end;
PT_GNU_EH_FRAME:
begin
eh_frame_hdr.addr:=elf_phdr[i].p_vaddr;
eh_frame_hdr.size:=elf_phdr[i].p_filesz;
end;
else
Writeln('PHDR:',HexStr(elf_phdr[i].p_type,16));
end;
end;
Result:=True;
end;
function _lib_attr_text(id:DWord):RawByteString;
begin
Case id of
$01:Result:='AUTO_EXPORT';
$02:Result:='WEAK_EXPORT';
$08:Result:='LOOSE_IMPORT';
$09:Result:='AUTO_EXPORT|LOOSE_IMPORT';
$10:Result:='WEAK_EXPORT|LOOSE_IMPORT';
else
Result:=HexStr(id,8);
end;
end;
function _mod_attr_text(id:DWord):RawByteString;
begin
Case id of
$00:Result:='NONE';
$01:Result:='SCE_CANT_STOP';
$02:Result:='SCE_EXCLUSIVE_LOAD';
$04:Result:='SCE_EXCLUSIVE_START';
$08:Result:='SCE_CAN_RESTART';
$10:Result:='SCE_CAN_RELOCATE';
$20:Result:='SCE_CANT_SHARE';
else
Result:=HexStr(id,8);
end;
end;
procedure Telf_file.PrepareTables(var entry:Elf64_Dyn);
var
i:Byte;
begin
case entry.d_tag of
DT_PREINIT_ARRAY:
begin
pInit.dt_preinit_array:=entry.d_un.d_ptr;
Writeln('DT_PREINIT_ARRAY:',HexStr(entry.d_un.d_ptr,16));
end;
DT_PREINIT_ARRAYSZ:
begin
pInit.dt_preinit_array_count:=entry.d_un.d_ptr div SizeOf(Pointer);
Writeln('DT_PREINIT_ARRAY_count:',pInit.dt_preinit_array_count);
end;
DT_INIT:
begin
dtInit:=entry.d_un.d_ptr;
Writeln('INIT addr:',entry.d_un.d_ptr);
end;
DT_INIT_ARRAY:
begin
pInit.dt_init_array:=entry.d_un.d_ptr;
Writeln('DT_INIT_ARRAY:',HexStr(entry.d_un.d_ptr,16));
end;
DT_INIT_ARRAYSZ:
begin
pInit.dt_init_array_count:=entry.d_un.d_ptr div SizeOf(Pointer);
Writeln('DT_INIT_ARRAY_count:',pInit.dt_init_array_count);
end;
DT_FINI:
begin
dtFini:=entry.d_un.d_ptr;
Writeln('FINI addr:',HexStr(entry.d_un.d_ptr,16));
end;
DT_SCE_SYMTAB:
begin
pSymTab:=pSceDynLib.pAddr+entry.d_un.d_ptr;
Writeln('DT_SCE_SYMTAB:',entry.d_un.d_ptr);
end;
DT_SCE_SYMTABSZ: //symbol table
begin
nSymTabCount:=entry.d_un.d_val div SizeOf(Elf64_Sym);
Writeln('DT_SCE_SYMTABSZ:',entry.d_un.d_val);
end;
DT_SCE_STRTAB: //string table
begin
pStrTable:=pSceDynLib.pAddr+entry.d_un.d_ptr;
Writeln('DT_SCE_STRTAB:',entry.d_un.d_ptr);
end;
DT_SCE_STRSZ:
begin
nStrTabSize:=entry.d_un.d_ptr;
Writeln('DT_SCE_STRSZ:',entry.d_un.d_val);
end;
DT_SCE_RELA: //Relocation table
begin
pRelaEntries:=pSceDynLib.pAddr+entry.d_un.d_ptr;
Writeln('DT_SCE_RELA:',entry.d_un.d_ptr);
end;
DT_SCE_RELASZ:
begin
nRelaCount:=entry.d_un.d_val div sizeof(Elf64_Rela);
Writeln('DT_SCE_STRSZ:',nRelaCount);
end;
DT_SCE_JMPREL: //PLT relocation table
begin
pPltRela:=pSceDynLib.pAddr+entry.d_un.d_ptr;
Writeln('DT_SCE_JMPREL:',entry.d_un.d_ptr);
end;
DT_SCE_PLTREL:
begin
nPltRelType:=entry.d_un.d_val;
Writeln('DT_SCE_PLTREL:',entry.d_un.d_val);
end;
DT_SCE_PLTRELSZ:
begin
nPltRelaCount:=entry.d_un.d_val div sizeof(Elf64_Rela);
Writeln('DT_SCE_PLTRELSZ:',nPltRelaCount);
end;
DT_NEEDED:;
DT_SCE_MODULE_INFO:;
DT_SCE_NEEDED_MODULE:;
DT_SCE_EXPORT_LIB:;
DT_SCE_IMPORT_LIB:;
//Offset of the hash table. Similar to ELF hash tables, just has a custom tag.
DT_SCE_HASH :Writeln('HASH:',entry.d_un.d_val);
DT_SCE_HASHSZ:Writeln('HASH_SIZE:',entry.d_un.d_val);
//Offset of the global offset table.
DT_SCE_PLTGOT :Writeln('DT_SCE_PLTGOT :',HexStr(entry.d_un.d_val,16));
DT_NULL :Writeln('DT_NULL');
DT_DEBUG :Writeln('DT_DEBUG :',entry.d_un.d_val);
DT_TEXTREL :Writeln('DT_TEXTREL :',entry.d_un.d_val);
// Pointer to array of termination functions
DT_FINI_ARRAY :Writeln('DT_FINI_ARRAY :',entry.d_un.d_val);
DT_FINI_ARRAYSZ :Writeln('DT_FINI_ARRAYSZ :',entry.d_un.d_val);
//Should be set to `DF_TEXTREL`.
DT_FLAGS:
begin
dtflags:=entry.d_un.d_val;
Writeln('DT_FLAGS:',entry.d_un.d_val);
if (dtflags and DF_STATIC_TLS)<>0 then
begin
Writeln('DF_STATIC_TLS');
end;
end;
DT_SCE_FINGERPRINT:
begin
Move((pSceDynLib.pAddr+entry.d_un.d_val)^,ModuleInfo.fingerprint,SCE_DBG_NUM_FINGERPRINT);
Write('DT_SCE_FINGERPRINT:');
For i:=0 to SCE_DBG_NUM_FINGERPRINT-1 do
Write(HexStr(ModuleInfo.fingerprint[i],2));
Writeln;
end;
//Offset of the filename in the string table.
DT_SCE_FILENAME:;
DT_SCE_MODULE_ATTR:;
DT_SCE_EXPORT_LIB_ATTR:;
DT_SCE_IMPORT_LIB_ATTR:;
//This element holds the size, in bytes, of the DT_RELA relocation entry.
DT_SCE_RELAENT:
begin
Writeln('DT_SCE_RELAENT:',HexStr(entry.d_un.d_val,16));
Assert(SizeOf(elf64_rela)=entry.d_un.d_val);
end;
//This element holds the size, in bytes, of a symbol table entry.
DT_SCE_SYMENT:
begin
Writeln('DT_SCE_SYMENT:',HexStr(entry.d_un.d_val,16));
Assert(SizeOf(elf64_sym)=entry.d_un.d_val);
end;
DT_SONAME:Writeln('DT_SONAME:',PChar(pSceDynLib.pAddr+entry.d_un.d_val));
else
Writeln('TAG:',HexStr(entry.d_tag,16));
end;
end;
procedure Telf_file.ParseSingleDynEntry(var entry:Elf64_Dyn);
var
mu:TModuleValue;
lu:TLibraryValue;
_md:TMODULE;
lib:TLIBRARY;
begin
case entry.d_tag of
//Offset of the filename in the string table.
DT_SCE_FILENAME:
begin
mu.value:=entry.d_un.d_val;
pSceFileName:=PChar(@pStrTable[mu.name_offset]);
Writeln('DT_SCE_FILENAME:',pSceFileName,':',HexStr(mu.id,4)); //build file name
end;
DT_NEEDED:
begin
mu.value:=entry.d_un.d_val;
_md:=Default(TMODULE);
_md.strName:=PChar(@pStrTable[mu.name_offset]);
_add_need(_md.strName);
Writeln('DT_NEEDED :',_md.strName); //import filename
end;
DT_SCE_MODULE_INFO:
begin
mu.value:=entry.d_un.d_val;
_md:=Default(TMODULE);
_md.strName:=PChar(@pStrTable[mu.name_offset]);
_md.Import:=False;
Writeln('DT_SCE_MODULE_INFO:',_md.strName,':',HexStr(mu.id,4)); //current module name
_set_mod(mu.id,_md);
ModuleInfo.name:=_md.strName+'.prx';
end;
DT_SCE_NEEDED_MODULE:
begin
mu.value:=entry.d_un.d_val;
_md:=Default(TMODULE);
_md.strName:=PChar(@pStrTable[mu.name_offset]);
_md.Import:=True;
Writeln('DT_SCE_NEEDED_MODULE :',HexStr(mu.id,4),':',_md.strName); //import module name
_set_mod(mu.id,_md);
end;
DT_SCE_IMPORT_LIB:
begin
lu.value:=entry.d_un.d_val;
lib:=Default(TLIBRARY);
lib.strName:=PChar(@pStrTable[lu.name_offset]);
lib.Import:=True;
Writeln('DT_SCE_IMPORT_LIB :',HexStr(lu.id,4),':',lib.strName); //import lib name
_set_lib(lu.id,lib);
end;
DT_SCE_EXPORT_LIB:
begin
lu.value:=entry.d_un.d_val;
lib:=Default(TLIBRARY);
lib.strName:=PChar(@pStrTable[lu.name_offset]);
lib.Import:=False;
Writeln('DT_SCE_EXPORT_LIB :',HexStr(lu.id,4),':',lib.strName); //export libname
_set_lib(lu.id,lib);
end;
DT_SCE_MODULE_ATTR:
begin
mu.value:=entry.d_un.d_val;
Writeln('DT_SCE_MODULE_ATTR :',HexStr(mu.id,4),
':',mu.version_major,
':',mu.version_minor,
':',_mod_attr_text(mu.name_offset));
_set_mod_attr(mu);
end;
DT_SCE_EXPORT_LIB_ATTR:
begin
lu.value:=entry.d_un.d_val;
Writeln('DT_SCE_EXPORT_LIB_ATTR :',HexStr(lu.id,4),
':',lu.version_major,
':',lu.version_minor,
':',_lib_attr_text(lu.name_offset));
_set_lib_attr(lu);
end;
DT_SCE_IMPORT_LIB_ATTR:
begin
lu.value:=entry.d_un.d_val;
Writeln('DT_SCE_IMPORT_LIB_ATTR :',HexStr(lu.id,4),
':',lu.version_major,
':',lu.version_minor,
':',_lib_attr_text(lu.name_offset));
_set_lib_attr(lu);
end;
end;
end;
function Telf_file.PrepareDynTables:Boolean;
var
i:SizeInt;
begin
Result:=False;
if (pDynEnt=nil) then Exit;
if (nDynEntCount=0) then Exit;
For i:=0 to nDynEntCount-1 do
begin
PrepareTables(pDynEnt[i]);
end;
For i:=0 to nDynEntCount-1 do
begin
ParseSingleDynEntry(pDynEnt[i]);
end;
Result:=True;
end;
function Telf_file.Prepare:Boolean;
begin
Result:=False;
if (Self=nil) then Exit;
if FPrepared then Exit(True);
Result:=PreparePhdr;
if not Result then raise Exception.Create('Error PreparePhdr');
Result:=PrepareDynTables;
if not Result then raise Exception.Create('Error PrepareDynTables');
Result:=MapImageIntoMemory;
if not Result then raise Exception.Create('Error MapImageIntoMemory');
Result:=LoadSymbolExport;
PatchTls;
FPrepared:=True;
end;
function _isSegmentLoadable(phdr:PElf64_Phdr):Boolean; inline;
begin
Result:=False;
Case phdr^.p_type of
PT_SCE_RELRO,
PT_LOAD:Result:=True;
end;
end;
procedure _add_seg(MI:pSceKernelModuleInfo;adr:Pointer;size:DWORD;prot:Integer); inline;
var
i:DWORD;
begin
if (MI^.segmentCount>=SCE_DBG_MAX_SEGMENTS) then
begin
Assert(False,'segmentCount');
Exit;
end;
i:=MI^.segmentCount;
MI^.segmentInfo[i].address:=adr;
MI^.segmentInfo[i].size:=size;
MI^.segmentInfo[i].prot:=prot;
Inc(MI^.segmentCount);
end;
procedure Telf_file._calculateTotalLoadableSize(elf_phdr:Pelf64_phdr;s:SizeInt);
var
i:SizeInt;
loadAddrEnd :Int64;
alignedAddr :Int64;
begin
loadAddrEnd :=0;
if (s<>0) then
For i:=0 to s-1 do
if _isSegmentLoadable(@elf_phdr[i]) then
begin
alignedAddr:=AlignUp(elf_phdr[i].p_vaddr+elf_phdr[i].p_memsz,elf_phdr[i].p_align);
if (alignedAddr>loadAddrEnd) then
begin
loadAddrEnd:=alignedAddr;
end;
end;
mMap.nSize:=AlignUp(loadAddrEnd,PHYSICAL_PAGE_SIZE);
end;
function get_end_pad(addr:PtrUInt;alignment:PtrUInt):PtrUInt; inline;
var
tmp:PtrUInt;
begin
Result:=0;
if (alignment=0) then Exit;
tmp:=addr mod alignment;
if (tmp=0) then Exit;
Result:=(alignment-tmp);
end;
procedure Telf_file._mapSegment(phdr:PElf64_Phdr;const name:PChar);
var
Src:Pointer;
Dst:Pointer;
Size:QWORD;
begin
Assert(IsAlign(phdr^.p_vaddr ,phdr^.p_align));
Assert(IsAlign(phdr^.p_offset,phdr^.p_align));
Size:=AlignUp(phdr^.p_memsz,PHYSICAL_PAGE_SIZE);
Dst:=mMap.pAddr+phdr^.p_vaddr;
Src:=mElf.pAddr+phdr^.p_offset;
FillChar(Dst^,Size,0);
Move(Src^,Dst^,phdr^.p_filesz);
_add_seg(@ModuleInfo,Dst,Size,phdr^.p_flags);
//Writeln('ENDPAD:',get_end_pad(phdr^.p_memsz,phdr^.p_align));
Writeln(name,':',HexStr(Dst),'..',HexStr(Pointer(Dst+Size)),' ',HexStr(Pointer(phdr^.p_offset)),'..',HexStr(Pointer(phdr^.p_offset+Size)));
end;
procedure Telf_file._addSegment(phdr:PElf64_Phdr;const name:PChar);// inline;
var
Dst:Pointer;
Size:QWORD;
begin
if (phdr^.p_vaddr=0) or (phdr^.p_memsz=0) then Exit;
Size:=phdr^.p_memsz;
Dst:=mMap.pAddr+phdr^.p_vaddr;
_add_seg(@ModuleInfo,Dst,Size,phdr^.p_flags);
Writeln(name,':',HexStr(Dst),'..',HexStr(Pointer(Dst+Size)));
end;
function Telf_file._ro_seg_len:Integer;
var
i:Integer;
begin
Result:=Length(ro_segments);
For i:=Low(ro_segments) to High(ro_segments) do
if (ro_segments[i].pAddr=nil) then
begin
Exit(i);
end;
end;
function Telf_file._ro_seg_find_lo(adr:Pointer):Integer;
var
i:Integer;
begin
Result:=-1;
For i:=Low(ro_segments) to High(ro_segments) do
begin
if (ro_segments[i].pAddr=nil) then Exit;
if (ro_segments[i].pAddr=adr) then Exit(i);
end;
end;
function Telf_file._ro_seg_find_hi(adr:Pointer):Integer;
var
i:Integer;
begin
Result:=-1;
For i:=Low(ro_segments) to High(ro_segments) do
begin
if (ro_segments[i].pAddr=nil) then Exit;
if (ro_segments[i].pAddr+ro_segments[i].nSize=adr) then Exit(i);
end;
end;
procedure Telf_file._add_ro_seg(phdr:PElf64_Phdr);
var
Dst:Pointer;
Size:QWORD;
i,len:Integer;
begin
//Writeln('_RDOL:',HexStr(phdr^.p_vaddr,16),'..',HexStr(phdr^.p_vaddr+phdr^.p_memsz,16));
if (phdr^.p_vaddr=0) or (phdr^.p_memsz=0) then Exit;
len:=_ro_seg_len;
Size:=phdr^.p_memsz;
Dst:=mMap.pAddr+phdr^.p_vaddr;
if (len=0) then
begin
ro_segments[len].pAddr:=Dst;
ro_segments[len].nSize:=Size;
end else
begin
i:=_ro_seg_find_lo(Dst+Size);
if (i<>-1) then
begin
ro_segments[i].pAddr:=Dst;
end else
begin
i:=_ro_seg_find_hi(Dst);
if (i<>-1) then
begin
ro_segments[i].nSize:=ro_segments[i].nSize+Size;
end else
begin
if len>=Length(ro_segments) then Exit;
ro_segments[len].pAddr:=Dst;
ro_segments[len].nSize:=Size;
end;
end;
end;
end;
procedure Telf_file._print_rdol;
var
i:Integer;
_lo,_hi:Pointer;
begin
For i:=Low(ro_segments) to High(ro_segments) do
begin
if (ro_segments[i].pAddr=nil) then Exit;
_lo:=ro_segments[i].pAddr;
_hi:=_lo+ro_segments[i].nSize;
if (_lo<>_hi) then
Writeln('.RDOL:',HexStr(_lo),'..',HexStr(_hi));
end;
end;
function Telf_file._ro_seg_adr_in(adr:Pointer;size:QWORD):Boolean;
var
i:Integer;
_lo,_hi,tmp:Pointer;
begin
Result:=False;
tmp:=adr+size;
For i:=Low(ro_segments) to High(ro_segments) do
begin
if (ro_segments[i].pAddr=nil) then Exit;
_lo:=ro_segments[i].pAddr;
_hi:=_lo+ro_segments[i].nSize;
If (adr>_lo) then _lo:=adr;
If (tmp<_hi) then _hi:=tmp;
if (_lo<_hi) then Exit(True);
end;
end;
procedure Telf_file._find_tls_stub(elf_phdr:Pelf64_phdr;s:SizeInt);
begin
//
end;
function Telf_file.MapImageIntoMemory:Boolean;
var
i:SizeInt;
elf_hdr:Pelf64_hdr;
elf_phdr:Pelf64_phdr;
hdr:p_eh_frame_hdr;
eh_frame_ptr:Int64;
begin
Result:=False;
if (Self=nil) then Exit;
elf_hdr:=mElf.pAddr;
if (elf_hdr=nil) then Exit;
elf_phdr:=Pointer(elf_hdr)+SizeOf(elf64_hdr);
if (elf_hdr^.e_phnum=0) then Exit;
_calculateTotalLoadableSize(elf_phdr,elf_hdr^.e_phnum);
if (mMap.nSize=0) then Exit;
if (pTls.full_size<>0) then
begin
_find_tls_stub(elf_phdr,elf_hdr^.e_phnum);
if (pTls.stub.nSize=0) then //extra stub
begin
pTls.stub.pAddr:=Pointer(mMap.nSize);
pTls.stub.nSize:=PHYSICAL_PAGE_SIZE;
mMap.nSize:=mMap.nSize+PHYSICAL_PAGE_SIZE;
end;
end;
mMap.pAddr:=nil;
if (ps4_app.prog=self) then
begin
mMap.pAddr:=Pointer($800000000);
end;
mMap.pAddr:=VirtualAlloc(mMap.pAddr,mMap.nSize,MEM_COMMIT or MEM_RESERVE,PAGE_READWRITE);
Assert(mMap.pAddr<>nil);
Assert(IsAlign(mMap.pAddr,16*1024));
if (pTls.full_size<>0) then
begin
pTls.stub.pAddr:=mMap.pAddr+QWORD(pTls.stub.pAddr);
end;
For i:=0 to elf_hdr^.e_phnum-1 do
begin
Case elf_phdr[i].p_type of
PT_LOAD:
begin
if ((elf_phdr[i].p_flags and PF_X)<>0) then
begin
_mapSegment(@elf_phdr[i],'.CODE');
end else
if ((elf_phdr[i].p_flags and PF_W)<>0) then
begin
_mapSegment(@elf_phdr[i],'.DATA');
end;
end;
PT_SCE_RELRO:
begin
_mapSegment(@elf_phdr[i],'.RELR');
end;
PT_DYNAMIC:
begin
_addSegment(@elf_phdr[i],'.DYNM');
end;
PT_SCE_PROCPARAM,
PT_TLS:
begin
if (elf_phdr[i].p_flags=PF_R) then
begin
_add_ro_seg(@elf_phdr[i]);
end;
end;
PT_GNU_EH_FRAME:
begin
if (elf_phdr[i].p_flags=PF_R) then
begin
_add_ro_seg(@elf_phdr[i]);
end;
eh_frame_hdr.addr:=elf_phdr[i].p_vaddr;
eh_frame_hdr.size:=elf_phdr[i].p_filesz;
hdr:=mMap.pAddr+eh_frame_hdr.addr;
eh_frame_ptr:=0;
if parse_eh_frame_hdr(hdr,
eh_frame_hdr.size,
Int64(hdr),
eh_frame_ptr) then
begin
eh_frame.addr:=eh_frame_ptr-QWORD(mMap.pAddr);
if (eh_frame_hdr.addr>eh_frame.addr) then
begin
eh_frame.size:=(eh_frame_hdr.addr-eh_frame.addr);
end else
begin
eh_frame.size:=(mMap.nSize-eh_frame_hdr.addr)
end;
end;
end;
else;
end;
end;
_print_rdol;
pEntry:=Pelf64_hdr(mElf.pAddr)^.e_entry;
Result:=True;
end;
function __rtype(nType:DWORD):RawByteString;
begin
case nType of
R_X86_64_NONE :Result:='R_X86_64_NONE ';
R_X86_64_PC32 :Result:='R_X86_64_PC32 ';
R_X86_64_COPY :Result:='R_X86_64_COPY ';
R_X86_64_TPOFF32 :Result:='R_X86_64_TPOFF32 ';
R_X86_64_DTPOFF32 :Result:='R_X86_64_DTPOFF32 ';
R_X86_64_RELATIVE :Result:='R_X86_64_RELATIVE ';
R_X86_64_TPOFF64 :Result:='R_X86_64_TPOFF64 ';
R_X86_64_DTPMOD64 :Result:='R_X86_64_DTPMOD64 ';
R_X86_64_DTPOFF64 :Result:='R_X86_64_DTPOFF64 ';
R_X86_64_JUMP_SLOT:Result:='R_X86_64_JUMP_SLOT';
R_X86_64_GLOB_DAT :Result:='R_X86_64_GLOB_DAT ';
R_X86_64_64 :Result:='R_X86_64_64 ';
else Result:='R_'+HexStr(nType,16);
end;
end;
function __nBind(nBind:Byte):RawByteString;
begin
case nBind of
STB_LOCAL :Result:='STB_LOCAL ';
STB_GLOBAL:Result:='STB_GLOBAL';
STB_WEAK :Result:='STB_WEAK ';
else Result:='STB_'+HexStr(nBind,2)+' ';
end;
end;
function __sType(sType:Byte):RawByteString;
begin
case sType of
STT_NOTYPE :Result:='STT_NOTYPE ';
STT_OBJECT :Result:='STT_OBJECT ';
STT_FUN :Result:='STT_FUN ';
STT_SECTION:Result:='STT_SECTION';
STT_FILE :Result:='STT_FILE ';
STT_COMMON :Result:='STT_COMMON ';
STT_TLS :Result:='STT_TLS ';
STT_SCE :Result:='STT_SCE ';
else Result:='STT_'+HexStr(sType,2)+' ';
end;
end;
function __other(st_other:Byte):RawByteString;
begin
case st_other of
STV_DEFAULT :Result:='STV_DEFAULT ';
STV_INTERNAL :Result:='STV_INTERNAL ';
STV_HIDDEN :Result:='STV_HIDDEN ';
STV_PROTECTED:Result:='STV_PROTECTED';
else Result:='STV_'+HexStr(st_other,2)+' ';
end;
end;
function __shndx(st_shndx:Word):RawByteString;
begin
case st_shndx of
SHN_UNDEF :Result:='IMPORT';
else Result:='EXPORT';
end;
end;
procedure _rela_info_convert(Info:PRelaInfo;pRela:Pelf64_rela;symbol:Pelf64_sym); inline;
begin
Info^.value:=symbol^.st_value;
Info^.Offset:=pRela^.r_offset;
Info^.Addend:=pRela^.r_addend;
Info^.rType:=ELF64_R_TYPE(pRela^.r_info);
Info^.sBind:=ELF64_ST_BIND(symbol^.st_info);
Info^.sType:=ELF64_ST_TYPE(symbol^.st_info);
Info^.shndx:=symbol^.st_shndx;
end;
function Telf_file.RelocateRelaEnum(cbs:TOnRelaInfoCb;data:Pointer):Boolean;
var
i:SizeInt;
pRela:Pelf64_rela;
Info:TRelaInfo;
symbol:Pelf64_sym;
nSymIdx:DWORD;
begin
Result:=False;
if (cbs=nil) then Exit;
if (nRelaCount=0) then Exit(True);
For i:=0 to nRelaCount-1 do
begin
pRela:=@pRelaEntries[i];
nSymIdx:=ELF64_R_SYM(pRela^.r_info);
symbol:=@pSymTab[nSymIdx];
Info.pName:=@pStrTable[symbol^.st_name];
_rela_info_convert(@Info,pRela,symbol);
case Info.sType of
STT_NOTYPE :;
STT_OBJECT :;
STT_FUN :;
STT_SECTION:;
STT_FILE :;
STT_COMMON :;
STT_SCE :;
STT_TLS :;
else
Writeln(__sType(Info.sType));
end;
cbs(Self,@Info,data);
end;
Result:=True;
end;
function Telf_file.RelocatePltRelaEnum(cbs:TOnRelaInfoCb;data:Pointer):Boolean;
var
i:SizeInt;
pRela:Pelf64_rela;
Info:TRelaInfo;
symbol:Pelf64_sym;
nSymIdx:DWORD;
begin
Result:=False;
if (cbs=nil) then Exit;
if (nPltRelaCount=0) then Exit(True);
For i:=0 to nPltRelaCount-1 do
begin
pRela:=@pPltRela[i];
nSymIdx:=ELF64_R_SYM(pRela^.r_info);
symbol:=@pSymTab[nSymIdx];
Info.pName:=@pStrTable[symbol^.st_name];
_rela_info_convert(@Info,pRela,symbol);
case Info.sType of
STT_NOTYPE :;
STT_OBJECT :;
STT_FUN :;
STT_SECTION:;
STT_FILE :;
STT_COMMON :;
STT_SCE :;
STT_TLS :;
else
Writeln(__sType(Info.sType));
end;
cbs(Self,@Info,data);
end;
Result:=True;
end;
function Telf_file.ParseSymbolsEnum(cbs:TOnRelaInfoCb;data:Pointer):Boolean;
var
i:SizeInt;
Info:TRelaInfo;
symbol:Pelf64_sym;
begin
Result:=False;
if (cbs=nil) then Exit;
if (nSymTabCount=0) then Exit(True);
For i:=0 to nSymTabCount-1 do
begin
symbol:=@pSymTab[i];
Info.pName:=@pStrTable[symbol^.st_name];
Info.value:=symbol^.st_value;
Info.Offset:=0;
Info.Addend:=0;
Info.rType:=R_X86_64_64;
Info.sBind:=ELF64_ST_BIND(symbol^.st_info);
Info.sType:=ELF64_ST_TYPE(symbol^.st_info);
Info.shndx:=symbol^.st_shndx;
if (Info.shndx<>SHN_UNDEF) then
begin
cbs(Self,@Info,data);
end;
if (Info.shndx<>SHN_UNDEF) then
case Info.sType of
STT_NOTYPE :;
STT_OBJECT :;
STT_FUN :;
STT_SECTION:;
STT_FILE :;
STT_COMMON :;
STT_TLS :;
STT_SCE :;
else
Writeln(__sType(Info.sType));
end;
end;
Result:=True;
end;
var
mod_space:TMODULE=(
attr:0;
Import:True;
strName:'';
);
var
lib_space:TLIBRARY=(
parent:nil;
MapSymbol:nil;
attr:0;
Import:True;
strName:'';
Fset_proc_cb:nil;
Fget_proc_cb:nil;
);
function _convert_info_name(elf:Telf_file;
Info:PRelaInfo;
IInfo:PResolveImportInfo
):Boolean;
var
nModId,nLibId:WORD;
begin
Result:=True;
nModId:=$FFFF; //no mod
nLibId:=$FFFF; //no lib
case Info^.sType of
STT_NOTYPE: //original string
begin
IInfo^.nid:=ps4_nid_hash(Info^.pName);
if (Info^.shndx=SHN_UNDEF) then //import
begin
//Export link without explicit name
end else
begin
nModId:=elf._find_mod_export;
nLibId:=elf._find_lib_export;
end;
end;
STT_SCE: //base64 string without specifying the module and library
begin
if not DecodeValue64(Info^.pName,StrLen(Info^.pName),IInfo^.nid) then
begin
Exit(False);
end;
if (Info^.shndx=SHN_UNDEF) then //import
begin
//Export link without explicit name
end else
begin
nModId:=elf._find_mod_export;
nLibId:=elf._find_lib_export;
end;
end;
else //base64 string specifying the module and library
begin
if not DecodeEncName(Info^.pName,nModId,nLibId,IInfo^.nid) then
begin
Exit(False);
end;
end;
end;
if (nModId=$FFFF) then
begin
IInfo^._md:=@mod_space;
end else
begin
IInfo^._md:=elf._get_mod(nModId);
end;
if (nLibId=$FFFF) then
begin
IInfo^.lib:=@lib_space;
end else
begin
IInfo^.lib:=elf._get_lib(nLibId);
end;
end;
Procedure OnLoadRelaExport(elf:Telf_file;Info:PRelaInfo;data:Pointer);
var
nSymVal:Pointer;
Import:Boolean;
procedure _do_set(nSymVal:Pointer); inline;
begin
if (Info^.Offset<>0) then
begin
Assert(Info^.Offset<elf.mMap.nSize);
PPointer(elf.mMap.pAddr+Info^.Offset)^:=nSymVal;
end;
end;
procedure _do_load(nSymVal:Pointer);
var
IInfo:TResolveImportInfo;
begin
Import:=(Info^.shndx=SHN_UNDEF);
if Import then Exit;
IInfo:=Default(TResolveImportInfo);
if not _convert_info_name(elf,Info,@IInfo) then
begin
Writeln(StdErr,'Error decode:',Info^.pName);
Exit;
end;
if (IInfo._md=nil)then
begin
Writeln(StdErr,'Unknow module from ',Info^.pName);
end else
if (IInfo._md^.Import<>Import) then
begin
Writeln(StdErr,'Wrong module ref:',IInfo._md^.strName,':',IInfo._md^.Import,'<>',Import);
end;
if (IInfo.lib=nil) then
begin
Writeln(StdErr,'Unknow library from ',Info^.pName);
Exit;
end else
if (IInfo.lib^.Import<>Import) then
begin
Writeln(StdErr,'Wrong library ref:',IInfo.lib^.strName,':',IInfo.lib^.Import,'<>',Import);
Exit;
end;
_do_set(nSymVal);
IInfo.lib^.set_proc(IInfo.nid,nSymVal);
end;
begin
case Info^.rType of
R_X86_64_RELATIVE:
begin
nSymVal:=elf.mMap.pAddr+Info^.Addend;
end;
R_X86_64_TPOFF64:
begin //tls_offset????
nSymVal:=Pointer(elf.pTls.offset+Info^.value+Info^.Addend);
end;
R_X86_64_DTPMOD64:
begin //tls_index????
nSymVal:=Pointer(elf.pTls.index);
end;
R_X86_64_DTPOFF64: //tls
begin
nSymVal:=Pointer(Info^.value+Info^.Addend);
end;
R_X86_64_JUMP_SLOT,
R_X86_64_GLOB_DAT:
begin
nSymVal:=elf.mMap.pAddr+Info^.value;
end;
R_X86_64_64:
begin
nSymVal:=elf.mMap.pAddr+Info^.value+Info^.Addend;
end;
else
begin
Writeln(StdErr,'rela type not handled ', __rtype(Info^.rType));
Assert(False);
end;
end;
Case Info^.sBind of
STB_LOCAL :
begin
_do_set(nSymVal);
end;
STB_GLOBAL,
STB_WEAK :
begin
_do_load(nSymVal);
end;
else
begin
Writeln(StdErr,'invalid sym bingding ',__nBind(Info^.sBind));
Assert(False);
end;
end;
end;
//
Procedure OnLoadRelaImport(elf:Telf_file;Info:PRelaInfo;data:Pointer);
var
nSymVal:Pointer;
Import:Boolean;
procedure _do_set(nSymVal:Pointer); inline;
begin
if (Info^.Offset<>0) then
begin
Assert(Info^.Offset<elf.mMap.nSize);
PPointer(elf.mMap.pAddr+Info^.Offset)^:=nSymVal;
end;
end;
procedure _do_load(nSymVal:Pointer);
var
IInfo:TResolveImportInfo;
val:Pointer;
begin
Import:=(Info^.shndx=SHN_UNDEF);
if not Import then Exit;
IInfo:=Default(TResolveImportInfo);
if not _convert_info_name(elf,Info,@IInfo) then
begin
Writeln(StdErr,'Error decode:',Info^.pName);
Exit;
end;
if (IInfo._md=nil) then
begin
Writeln(StdErr,'Unknow module from ',Info^.pName);
end else
if (IInfo._md^.Import<>Import) then
begin
Writeln(StdErr,'Wrong module ref:',IInfo._md^.strName,':',IInfo._md^.Import,'<>',Import);
end;
if (IInfo.lib=nil) then
begin
Writeln(StdErr,'Unknow library from ',Info^.pName);
Exit;
end else
if (IInfo.lib^.Import<>Import) then
begin
Writeln(StdErr,'Wrong library ref:',IInfo.lib^.strName,':',IInfo.lib^.Import,'<>',Import);
Exit;
end;
val:=nil;
if (data<>nil) and (PPointer(data)[0]<>nil) and (Info^.Offset<>0) then
begin
IInfo.pName :=Info^.pName;
IInfo.Offset:=Info^.Offset;
IInfo.rType :=Info^.rType;
IInfo.sBind :=Info^.sBind;
IInfo.sType :=Info^.sType;
val:=TResolveImportCb(PPointer(data)[0])(elf,@IInfo,PPointer(data)[1]);
//Important! Don't store the value if the return is nil!
if (val<>nil) then
begin
nSymVal:=Pointer(ptruint(val)+ptruint(nSymVal));
_do_set(nSymVal);
end;
end;
end;
begin
case Info^.rType of
R_X86_64_RELATIVE:
begin
nSymVal:=Pointer(Info^.Addend);
end;
R_X86_64_TPOFF64:
begin //tls_offset????
nSymVal:=Pointer(elf.pTls.offset+Info^.value+Info^.Addend);
end;
R_X86_64_DTPMOD64:
begin //tls_index????
nSymVal:=Pointer(elf.pTls.index);
end;
R_X86_64_DTPOFF64: //tls
begin
nSymVal:=Pointer(Info^.value+Info^.Addend);
end;
R_X86_64_JUMP_SLOT,
R_X86_64_GLOB_DAT:
begin
nSymVal:=Pointer(Info^.value);
end;
R_X86_64_64:
begin
nSymVal:=Pointer(Info^.value+Info^.Addend);
end;
else
begin
Writeln(StdErr,'rela type not handled ', __rtype(Info^.rType));
Assert(False);
end;
end;
Case Info^.sBind of
STB_LOCAL :
begin
//
end;
STB_GLOBAL,
STB_WEAK :
begin
_do_load(nSymVal);
end;
else
begin
Writeln(StdErr,'invalid sym bingding ',__nBind(Info^.sBind));
Assert(False);
end;
end;
end;
Procedure OnDumpRela(elf:Telf_file;Info:PRelaInfo;data:Pointer);
const
NL=#13#10;
procedure FWrite(Const str:RawByteString); inline;
begin
FileWrite(THandle(Data),PChar(str)^,Length(str))
end;
procedure FWriteln(Const str:RawByteString); inline;
begin
FWrite(str+NL);
end;
procedure _do_set(nSymVal:Pointer);
begin
if (Info^.shndx=SHN_UNDEF) then
begin
FWriteln(__nBind(Info^.sBind)+':IMPORT:O:'+HexStr(Info^.Offset,16)+':V:'+HexStr(nSymVal));
end else
begin
FWriteln(__nBind(Info^.sBind)+':EXPORT:O:'+HexStr(Info^.Offset,16)+':V:'+HexStr(nSymVal));
end;
end;
procedure _do_load(nSymVal:Pointer);
var
functName:PChar;
IInfo:TResolveImportInfo;
Import:Boolean;
begin
Import:=(Info^.shndx=SHN_UNDEF);
IInfo:=Default(TResolveImportInfo);
if not _convert_info_name(elf,Info,@IInfo) then
begin
FWriteln('Error decode:'+Info^.pName);
end;
if (IInfo._md=nil) then
begin
FWriteln('Unknow module from '+Info^.pName);
end else
if (IInfo._md^.Import<>Import) then
begin
FWriteln('Wrong module ref:'+IInfo._md^.strName+':'+BoolToStr(IInfo._md^.Import)+'<>'+BoolToStr(Import));
end;
if (IInfo.lib=nil) then
begin
FWriteln('Unknow library from '+Info^.pName);
end else
if (IInfo.lib^.Import<>Import) then
begin
FWriteln('Wrong library ref:'+IInfo.lib^.strName+':'+BoolToStr(IInfo.lib^.Import)+'<>'+BoolToStr(Import));
end;
functName:=ps4libdoc.GetFunctName(IInfo.nid);
FWrite(__nBind(Info^.sBind)+':'+__sType(Info^.sType)+':');
if (IInfo._md<>nil) then
begin
FWrite(IInfo._md^.strName);
end;
FWriteln(':');
if (IInfo.lib<>nil) then
begin
FWrite(IInfo.lib^.strName);
end;
FWriteln(':'+functName);
if Import then
begin
FWriteln(' IMPORT:N:'+Info^.pName+':O:'+HexStr(Info^.Offset,16)+':V:'+HexStr(nSymVal)+':NID:'+HexStr(IInfo.nid,16));
end else
begin
FWriteln(' EXPORT:N:'+Info^.pName+':O:'+HexStr(Info^.Offset,16)+':V:'+HexStr(nSymVal)+':NID:'+HexStr(IInfo.nid,16));
end;
end;
begin
Case Info^.sBind of
STB_LOCAL :;
STB_GLOBAL:;
STB_WEAK :;
else
FWriteln('invalid sym bingding '+__nBind(Info^.sBind));
end;
case Info^.rType of
//R_X86_64_NONE :FWriteln('R_X86_64_NONE');
//R_X86_64_PC32 :FWriteln('R_X86_64_PC32');
//R_X86_64_COPY :FWriteln('R_X86_64_COPY');
//
//R_X86_64_TPOFF32 :FWriteln('R_X86_64_TPOFF32');
//R_X86_64_DTPOFF32:FWriteln('R_X86_64_DTPOFF32');
R_X86_64_RELATIVE:
begin
_do_set(Pointer(Info^.Addend));
end;
R_X86_64_TPOFF64:
begin //tls_offset????
_do_load(Pointer(elf.pTls.offset+Info^.value+Info^.Addend));
end;
R_X86_64_DTPMOD64:
begin //tls_index????
_do_set(Pointer(0));
end;
R_X86_64_DTPOFF64: //tls
begin
_do_load(Pointer(Info^.value+Info^.Addend));
end;
R_X86_64_JUMP_SLOT,
R_X86_64_GLOB_DAT,
R_X86_64_64:
begin
Case Info^.sBind of
STB_LOCAL:
begin
_do_set(Pointer(Info^.value+Info^.Addend));
end;
STB_GLOBAL,
STB_WEAK:
begin
_do_load(Pointer(Info^.value)+Info^.Addend);
end;
else;
end;
end;
else
FWriteln('rela type not handled '+__rtype(Info^.rType));
end;
end;
function Telf_file.LoadSymbolExport:Boolean;
begin
Result:=False;
if (Self=nil) then Exit;
if (mMap.pAddr=nil) or (mMap.nSize=0) then Exit;
Result:=RelocateRelaEnum(@OnLoadRelaExport,nil);
if not Result then raise Exception.Create('Error RelocateRelaEnum');
Result:=RelocatePltRelaEnum(@OnLoadRelaExport,nil);
if not Result then raise Exception.Create('Error RelocatePltRelaEnum');
Result:=ParseSymbolsEnum(@OnLoadRelaExport,nil);
if not Result then raise Exception.Create('Error ParseSymbolsEnum');
end;
Procedure Telf_file.LoadSymbolImport(cbs,data:Pointer);
var
_data:array[0..1] of Pointer;
begin
if (Self=nil) then Exit;
if FLoadImport then Exit;
if (mMap.pAddr=nil) or (mMap.nSize=0) then Exit;
_data[0]:=cbs;
_data[1]:=data;
RelocateRelaEnum(@OnLoadRelaImport,@_data);
RelocatePltRelaEnum(@OnLoadRelaImport,@_data);
ParseSymbolsEnum(@OnLoadRelaImport,@_data);
FLoadImport:=True;
end;
Procedure Telf_file.ReLoadSymbolImport(cbs,data:Pointer);
var
_data:array[0..1] of Pointer;
begin
if (Self=nil) then Exit;
if not FLoadImport then Exit;
if (mMap.pAddr=nil) or (mMap.nSize=0) then Exit;
_data[0]:=cbs;
_data[1]:=data;
RelocateRelaEnum(@OnLoadRelaImport,@_data);
RelocatePltRelaEnum(@OnLoadRelaImport,@_data);
ParseSymbolsEnum(@OnLoadRelaImport,@_data);
end;
Procedure OnDumpInitProc(elf:Telf_file;F:THandle);
const
NL=#13#10;
procedure FWrite(Const str:RawByteString); inline;
begin
FileWrite(F,PChar(str)^,Length(str))
end;
procedure FWriteln(Const str:RawByteString); inline;
begin
FWrite(str+NL);
end;
var
i,c,o:SizeInt;
base:Pointer;
P:PPointer;
begin
FWriteln('e_entry:' +HexStr(elf.pEntry,16));
base:=elf.mMap.pAddr;
FWriteln('dtInit:'+HexStr(elf.dtInit,16));
c:=elf.pInit.dt_preinit_array_count;
if (c<>0) then
Case Int64(elf.pInit.dt_preinit_array) of
-1,0,1:;//skip
else
begin
P:=base+elf.pInit.dt_preinit_array;
dec(c);
For i:=0 to c do
begin
o:=SizeInt(P[i])-SizeInt(base);
FWriteln('dt_preinit['+IntToStr(i)+']:' +HexStr(o,16));
end;
end;
end;
c:=elf.pInit.dt_init_array_count;
if (c<>0) then
Case Int64(elf.pInit.dt_init_array) of
-1,0,1:;//skip
else
begin
P:=base+elf.pInit.dt_init_array;
dec(c);
For i:=0 to c do
begin
o:=SizeInt(P[i])-SizeInt(base);
FWriteln('dt_init['+IntToStr(i)+']:' +HexStr(o,16));
end;
end;
end;
FWriteln('dtFini:'+HexStr(elf.dtFini,16));
end;
function Telf_file.DympSymbol(F:THandle):Boolean;
begin
Result:=False;
if (Self=nil) then Exit;
OnDumpInitProc(Self,F);
Result:=RelocateRelaEnum(@OnDumpRela,Pointer(F));
Result:=RelocatePltRelaEnum(@OnDumpRela,Pointer(F));
Result:=ParseSymbolsEnum(@OnDumpRela,Pointer(F));
end;
function ps4_nid_hash(const name:RawByteString):QWORD;
const
salt:array[0..15] of Byte=($51,$8D,$64,$A6,$35,$DE,$D8,$C1,$E6,$B0,$39,$B1,$C3,$E5,$52,$30);
var
Context:TSHA1Context;
Digest:TSHA1Digest;
begin
SHA1Init(Context);
SHA1Update(Context,PChar(name)^,Length(name));
SHA1Update(Context,salt,Length(salt));
SHA1Final(Context,Digest);
Result:=PQWORD(@Digest)^;
end;
function EncodeValue64(nVal:QWORD):RawByteString;
const
nEncLenMax=11;
var
i,nIndex:Integer;
begin
SetLength(Result,nEncLenMax);
For i:=nEncLenMax downto 1 do
begin
if (i<>nEncLenMax) then
begin
nIndex:=nVal and 63;
nVal:=nVal shr 6;
end else
begin
nIndex:=(nVal and 15) shl 2;
nVal:=nVal shr 4;
end;
case nIndex of
0..25:Result[i]:=Char(nIndex+Byte('A')-0);
26..51:Result[i]:=Char(nIndex+Byte('a')-26);
52..61:Result[i]:=Char(nIndex+Byte('0')-52);
62:Result[i]:='+';
63:Result[i]:='-';
end;
end;
end;
function DecodeValue64(strEnc:PAnsiChar;len:SizeUint;var nVal:QWORD):Boolean;
const
nEncLenMax=11;
var
i,nIndex:Integer;
begin
Result:=False;
nVal:=0;
if (len>nEncLenMax) or (len=0) then Exit;
For i:=0 to len-1 do
begin
case strEnc[i] of
'A'..'Z':nIndex:=Byte(strEnc[i])-Byte('A')+0;
'a'..'z':nIndex:=Byte(strEnc[i])-Byte('a')+26;
'0'..'9':nIndex:=Byte(strEnc[i])-Byte('0')+52;
'+':nIndex:=62;
'-':nIndex:=63;
else Exit;
end;
if (i<(nEncLenMax-1)) then
begin
nVal:=nVal shl 6;
nVal:=nVal or nIndex;
end else
begin
nVal:=nVal shl 4;
nVal:=nVal or (nIndex shr 2);
end;
end;
Result:=True;
end;
function DecodeValue16(strEnc:PAnsiChar;len:SizeUint;var nVal:WORD):Boolean;
const
nEncLenMax=3;
var
i,nIndex:Integer;
begin
Result:=False;
nVal:=0;
if (len>nEncLenMax) or (len=0) then Exit;
For i:=0 to len-1 do
begin
case strEnc[i] of
'A'..'Z':nIndex:=Byte(strEnc[i])-Byte('A')+0;
'a'..'z':nIndex:=Byte(strEnc[i])-Byte('a')+26;
'0'..'9':nIndex:=Byte(strEnc[i])-Byte('0')+52;
'+':nIndex:=62;
'-':nIndex:=63;
else Exit;
end;
begin
nVal:=nVal shl 6;
nVal:=nVal or nIndex;
end;
end;
Result:=True;
end;
function DecodeEncName(strEncName:PAnsiChar;var nModuleId,nLibraryId:WORD;var nNid:QWORD):Boolean;
var
i,len:Integer;
begin
Result:=False;
len:=StrLen(strEncName);
i:=IndexByte(strEncName^,len,Byte('#'));
if (i=-1) then Exit;
if not DecodeValue64(strEncName,i,nNid) then Exit;
Inc(i);
Inc(strEncName,i);
Dec(len,i);
i:=IndexByte(strEncName^,len,Byte('#'));
if (i=-1) then Exit;
if not DecodeValue16(strEncName,i,nLibraryId) then Exit;
Inc(i);
Inc(strEncName,i);
Dec(len,i);
if not DecodeValue16(strEncName,len,nModuleId) then Exit;
Result:=True;
end;
{
64 48 A1 [0000000000000000] mov rax,fs:[$0000000000000000] -> 65 48 A1 [0807000000000000] mov rax,gs:[$0000000000000708]
64 48 8B 04 25 [00000000] mov rax,fs:[$00000000] -> 65 48 8B 04 25 [08070000] mov rax,gs:[$00000708]
64 48 8B 0C 25 [00000000] mov rcx,fs:[$00000000] -> 65 48 8B 0C 25 [08070000] mov rcx,gs:[$00000708]
64 48 8B 14 25 [00000000] mov rdx,fs:[$00000000] -> 65 48 8B 14 25 [08070000] mov rdx,gs:[$00000708]
64 48 8B 1C 25 [00000000] mov rbx,fs:[$00000000] -> 65 48 8B 1C 25 [08070000] mov rbx,gs:[$00000708]
64 48 8B 24 25 [00000000] mov rsp,fs:[$00000000] -> 65 48 8B 24 25 [08070000] mov rsp,gs:[$00000708]
64 48 8B 2C 25 [00000000] mov rbp,fs:[$00000000] -> 65 48 8B 2C 25 [08070000] mov rbp,gs:[$00000708]
64 48 8B 34 25 [00000000] mov rsi,fs:[$00000000] -> 65 48 8B 34 25 [08070000] mov rsi,gs:[$00000708]
64 48 8B 3C 25 [00000000] mov rdi,fs:[$00000000] -> 65 48 8B 3C 25 [08070000] mov rdi,gs:[$00000708]
64 4C 8B 04 25 [00000000] mov r8 ,fs:[$00000000] -> 65 4C 8B 04 25 [08070000] mov r8 ,gs:[$00000708]
64 4C 8B 0C 25 [00000000] mov r9 ,fs:[$00000000] -> 65 4C 8B 0C 25 [08070000] mov r9 ,gs:[$00000708]
64 4C 8B 14 25 [00000000] mov r10,fs:[$00000000] -> 65 4C 8B 14 25 [08070000] mov r10,gs:[$00000708]
64 4C 8B 1C 25 [00000000] mov r11,fs:[$00000000] -> 65 4C 8B 1C 25 [08070000] mov r11,gs:[$00000708]
64 4C 8B 24 25 [00000000] mov r12,fs:[$00000000] -> 65 4C 8B 24 25 [08070000] mov r12,gs:[$00000708]
64 4C 8B 2C 25 [00000000] mov r13,fs:[$00000000] -> 65 4C 8B 2C 25 [08070000] mov r13,gs:[$00000708]
64 4C 8B 34 25 [00000000] mov r14,fs:[$00000000] -> 65 4C 8B 34 25 [08070000] mov r14,gs:[$00000708]
64 4C 8B 3C 25 [00000000] mov r15,fs:[$00000000] -> 65 4C 8B 3C 25 [08070000] mov r15,gs:[$00000708]
}
type
t_patch_inst=array[0..11] of Byte;
const
patch_table:array[0..16] of t_patch_inst=(
( 9,$65,$48,$8B,$04,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$48,$8B,$0C,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$48,$8B,$14,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$48,$8B,$1C,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$48,$8B,$24,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$48,$8B,$2C,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$48,$8B,$34,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$48,$8B,$3C,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$04,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$0C,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$14,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$1C,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$24,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$2C,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$34,$25,$08,$07,$00,$00,$00,$00),
( 9,$65,$4C,$8B,$3C,$25,$08,$07,$00,$00,$00,$00),
(12,$65,$48,$A1,$08,$07,$00,$00,$00,$00,$00,$00)
);
procedure SetTlsBase(p:Pointer); assembler; nostackframe;
asm
mov %rcx,%gs:(0x708)
end;
function GetTlsBase:Pointer; assembler; nostackframe;
asm
mov %gs:(0x708),%rax
end;
function IndexMovFs(var pbuf:Pointer;pend:Pointer):Integer;
var
psrc:Pointer;
W:DWORD;
begin
Result:=-1;
psrc:=pbuf;
while (psrc<pend) do
begin
W:=PDWORD(psrc)^;
Case W of
$048B4864:Result:= 0; //rax
$0C8B4864:Result:= 1; //rcx
$148B4864:Result:= 2; //rdx
$1C8B4864:Result:= 3; //rbx
$248B4864:Result:= 4; //rsp
$2C8B4864:Result:= 5; //rbp
$348B4864:Result:= 6; //rsi
$3C8B4864:Result:= 7; //rdi
$048B4C64:Result:= 8; //r8
$0C8B4C64:Result:= 9; //r9
$148B4C64:Result:=10; //r10
$1C8B4C64:Result:=11; //r11
$248B4C64:Result:=12; //r12
$2C8B4C64:Result:=13; //r13
$348B4C64:Result:=14; //r14
$3C8B4C64:Result:=15; //r15
$00A14864:Result:=16; //rax64
//shft 8
$8B486400..$8B4864FF,
$8B4C6400..$8B4C64FF,
$A1486400..$A14864FF:
begin
Inc(psrc,1);
Continue;
end;
//shft 16
$48640000..$4864FFFF,
$4C640000..$4C64FFFF:
begin
Inc(psrc,2);
Continue;
end;
//shft 24
$64000000..$64FFFFFF:
begin
Inc(psrc,3);
Continue;
end;
else
begin
Inc(psrc,4);
Continue;
end;
end;
Case Result of
0..15:
begin
if (PBYTE(psrc)[4]=$25) then
begin
if (PDWORD(@PBYTE(psrc)[5])^<>$00000000) then
begin
Inc(psrc,5);
Continue;
end;
end else
begin
Inc(psrc,4);
Continue;
end;
end;
16:
begin
if (PQWORD(@PBYTE(psrc)[3])^<>$0000000000000000) then
begin
Inc(psrc,4);
Continue;
end;
end;
else;
end;
if (Result<>-1) then
begin
pbuf:=psrc;
exit;
end;
Inc(psrc);
end;
Result:=-1;
end;
procedure Telf_file._PatchTls(Addr:PByte;Size:QWORD);
var
count:SizeInt;
procedure do_patch(p:PByte;i:Integer); inline;
begin
Move(patch_table[i][1],p^,patch_table[i][0]);
end;
procedure do_find(p:PByte;s:SizeInt);
var
pend:Pointer;
i,len:Integer;
begin
pend:=p+s;
repeat
i:=IndexMovFs(p,pend);
if (i=-1) then Exit;
len:=patch_table[i][0];
if not _ro_seg_adr_in(p,len) then
begin
Inc(count);
do_patch(p,i);
Inc(p,len);
end;
until false;
end;
begin
if (Size=0) then Exit;
if (Size>=12) then Size:=Size-12;
count:=0;
do_find(@Addr[0],Size);
Writeln('patch_tls_count=',count);
end;
procedure Telf_file.PatchTls;
var
i,c:DWORD;
begin
if (Self=nil) then Exit;
if (pTls.full_size=0) then Exit; //no tls?
c:=ModuleInfo.segmentCount;
if (c<>0) then
For i:=0 to c-1 do
if (ModuleInfo.segmentInfo[i].prot and PF_X<>0) then
begin
_PatchTls(ModuleInfo.segmentInfo[i].address,
ModuleInfo.segmentInfo[i].Size);
end;
end;
function _dynamic_tls_get_addr(ti:PTLS_index):Pointer; SysV_ABI_CDecl;
var
elf:Telf_file;
tcb:Ptls_tcb;
begin
Result:=nil;
if (ti=nil) then Exit;
elf:=Telf_file(ti^.ti_moduleid);
if (elf=nil) then Exit;
tcb:=elf._get_tls;
if (tcb=nil) then Exit;
Result:=tcb^._dtv.value+ti^.ti_tlsoffset;
end;
function Telf_file._init_tls(is_static:QWORD):Ptls_tcb;
Var
tcb_size:QWORD;
tcb:Ptls_tcb;
base:Pointer;
adr:Pointer;
begin
tcb_size:=pTls.full_size;
tcb:=_init_tls_tcb(tcb_size,is_static,Handle);
base:=tcb^._dtv.value;
Assert(IsAlign(base,pTls.align));
if (pTls.tmpl_size<>0) then
begin
adr:=mMap.pAddr+pTls.tmpl_start;
Move(adr^,base^,pTls.tmpl_size);
end;
Result:=tcb;
end;
function Telf_file._get_tls:Ptls_tcb;
begin
Result:=_get_tls_tcb(Handle);
if (Result=nil) then
begin
Result:=_init_tls(0);
end;
end;
procedure Telf_file.InitThread(is_static:QWORD);
begin
if (Self=nil) then Exit;
if FInitThread then Exit;
if (pTls.full_size=0) then Exit;
if (_get_tls_tcb(Handle)<>nil) then Exit;
_init_tls(is_static);
FInitThread:=True;
end;
function __map_segment_prot(prot:Integer):DWORD;
begin
Result:=0;
if (prot=0) then Exit(PAGE_NOACCESS);
if (prot and PF_X)<>0 then
begin
if (prot and PF_W)<>0 then
begin
Result:=PAGE_EXECUTE_READWRITE;
end else
if (prot and PF_R)<>0 then
begin
Result:=PAGE_EXECUTE_READ;
end else
begin
Result:=PAGE_EXECUTE;
end;
end else
if (prot and PF_W)<>0 then
begin
Result:=PAGE_READWRITE;
end else
begin
Result:=PAGE_READONLY;
end;
end;
procedure Telf_file.mapProt;
var
i,c:DWORD;
dummy:DWORD;
R:Boolean;
begin
if (Self=nil) then Exit;
c:=ModuleInfo.segmentCount;
if c<>0 then
begin
Writeln('MAPF:',HexStr(mMap.pAddr),'..',HexStr(mMap.pAddr+mMap.nSize));
For i:=0 to c-1 do
if (ModuleInfo.segmentInfo[i].prot and PF_X<>0) then
begin
R:=VirtualProtect(ModuleInfo.segmentInfo[i].address,
ModuleInfo.segmentInfo[i].Size,
{__map_segment_prot(ModuleInfo.segmentInfo[i].prot)} PAGE_EXECUTE_READWRITE,
@dummy);
FlushInstructionCache(GetCurrentProcess,
ModuleInfo.segmentInfo[i].address,
ModuleInfo.segmentInfo[i].Size);
Writeln('PF_X:',HexStr(ModuleInfo.segmentInfo[i].address),'..',
HexStr(ModuleInfo.segmentInfo[i].address+ModuleInfo.segmentInfo[i].Size),':',
R);
end;
end;
if (pTls.stub.pAddr<>nil) then
begin
//extra tls stub
if (pTls.stub.nSize=PHYSICAL_PAGE_SIZE) then
begin
R:=VirtualProtect(pTls.stub.pAddr,
pTls.stub.nSize,
{PAGE_EXECUTE_READ}PAGE_EXECUTE_READWRITE,
@dummy);
FlushInstructionCache(GetCurrentProcess,
pTls.stub.pAddr,
pTls.stub.nSize);
Writeln('STUB:',HexStr(pTls.stub.pAddr),'..',HexStr(pTls.stub.pAddr+pTls.stub.nSize),':',R);
end else
//inline stub
begin
Writeln('STUB:',HexStr(pTls.stub.pAddr),'..',HexStr(pTls.stub.pAddr+pTls.stub.nSize));
end;
end;
end;
function call_dt_preinit_array(Params:PPS4StartupParams;Proc:Pointer):Integer;
begin
Result:=0;
if (Proc<>nil) then
begin
Result:=TinitProc(Proc)(Params^.argc,@Params^.argv,nil);
Writeln('call_dt_preinit_array:',Result);
end;
end;
function call_dt_init_array(Params:PPS4StartupParams;Proc:Pointer):Integer;
begin
Result:=0;
if (Proc<>nil) then
begin
Result:=TinitProc(Proc)(Params^.argc,@Params^.argv,nil);
Writeln('call_dt_init_array:',Result);
end;
end;
procedure Telf_file.mapCodeInit;
var
Prog:Telf_file;
//i,c:SizeInt;
//StartupParams:TPS4StartupParams;
//base:Pointer;
//P:PPointer;
begin
if (Self=nil) then Exit;
Prog:=Telf_file(ps4_app.prog);
if (Prog=nil) then Exit;
Writeln('mapCodeInit:',pFileName);
//StartupParams:=Default(TPS4StartupParams);
//StartupParams.argc:=1;
//StartupParams.argv[0]:=PChar(Prog.pFileName);
//base:=mMap.pAddr;
if (Prog<>Self) then
begin
module_start(0,nil,nil);
end;
//if (Prog<>Self) then
//begin
// //dt_Init
// TinitProc(base+dtInit)(StartupParams.argc,@StartupParams.argv,nil);
//end;
{
c:=pInit.dt_preinit_array_count;
if (c<>0) then
Case Int64(pInit.dt_preinit_array) of
-1,0,1:;//skip
else
begin
P:=base+pInit.dt_preinit_array;
dec(c);
For i:=0 to c do
begin
call_dt_preinit_array(@StartupParams,P[i]);
end;
end;
end;
c:=pInit.dt_init_array_count;
if (c<>0) then
Case Int64(pInit.dt_init_array) of
-1,0,1:;//skip
else
begin
P:=base+pInit.dt_init_array;
dec(c);
For i:=0 to c do
begin
call_dt_init_array(@StartupParams,P[i]);
end;
end;
end;
}
end;
Procedure Telf_file.InitProt;
begin
if FInitProt then Exit;
//ClearElfFile;
mapProt;
FInitProt:=True;
end;
Procedure Telf_file.InitCode;
begin
if FInitCode then Exit;
mapCodeInit;
FInitCode:=True;
end;
function Telf_file.module_start(argc:size_t;argp,param:PPointer):Integer;
var
//mp:PsceModuleParam;
//M:Pointer;
P:TmoduleStart;
begin
Result:=0;
//Pointer(mp):=Pointer(mMap.pAddr+pModuleParam);
//M:=get_proc_by_name('module_start');
Pointer(P):=Pointer(mMap.pAddr+dtInit);
Writeln('>module_start:',pFileName);
Result:=P(argc,argp,param);
Writeln('<module_start:',pFileName);
end;
function Telf_file.GetCodeFrame:TMemChunk;
begin
Result:=Default(TMemChunk);
safe_move(mMap,Result,SizeOf(TMemChunk));
end;
function Telf_file.GetEntry:Pointer;
begin
Case Int64(pEntry) of
-1:Result:=nil;//skip
else
begin
Result:=Pointer(mMap.pAddr+QWORD(pEntry));
end;
end;
end;
function Telf_file.GetdInit:Pointer;
begin
Case Int64(dtInit) of
-1:Result:=nil;//skip
else
begin
Result:=Pointer(mMap.pAddr+QWORD(dtInit));
end;
end;
end;
function Telf_file.GetdFini:Pointer;
begin
Case Int64(dtFini) of
-1:Result:=nil;//skip
else
begin
Result:=Pointer(mMap.pAddr+QWORD(dtFini));
end;
end;
end;
Function Telf_file.GetModuleInfo:SceKernelModuleInfo;
begin
if (ModuleInfo.name[0]=#0) then
begin
MoveChar0(PChar(pFileName)^,ModuleInfo.name,SCE_DBG_MAX_NAME_LENGTH);
end;
Result:=ModuleInfo;
end;
Function Telf_file.GetModuleInfoEx:SceKernelModuleInfoEx;
begin
Result:=inherited;
if (ModuleInfo.name[0]=#0) then
begin
MoveChar0(PChar(pFileName)^,ModuleInfo.name,SCE_DBG_MAX_NAME_LENGTH);
end;
Result.name:=ModuleInfo.name;
Result.tls_index :=pTls.index;
Result.tls_init_addr :=mMap.pAddr+pTls.tmpl_start;
Result.tls_init_size :=pTls.tmpl_size;
Result.tls_size :=pTls.full_size;
Result.tls_offset :=pTls.offset;
Result.tls_align :=pTls.align;
Result.init_proc_addr :=mMap.pAddr+dtInit;
Result.fini_proc_addr :=mMap.pAddr+dtFini;
Result.eh_frame_hdr_addr:=mMap.pAddr+eh_frame_hdr.addr;
Result.eh_frame_addr :=mMap.pAddr+eh_frame.addr;
Result.eh_frame_hdr_size:=eh_frame_hdr.size;
Result.eh_frame_size :=eh_frame.size;
Result.segments :=ModuleInfo.segmentInfo;
Result.segment_count:=ModuleInfo.segmentCount;
end;
procedure _Entry(P:TEntryPoint;pFileName:Pchar);
var
data:array[0..SizeOf(TPS4StartupParams)+38] of Byte;
psp:PPS4StartupParams;
begin
psp:=Pointer(Align(@data,32)+8); //AVX align +8
psp^:=Default(TPS4StartupParams);
psp^.argc:=1;
psp^.argv[0]:=pFileName;
//OpenOrbis relies on the fact that besides %rdi and %rsp also link to StartupParams, a very strange thing
asm
xor %rsi,%rsi //2
mov psp ,%rdi //1
mov %rdi,%rsp //stack
jmp P
end;
//P(@StartupParams,nil);
end;
procedure Telf_file.mapCodeEntry;
var
P:TEntryPoint;
begin
Pointer(P):=Pointer(pEntry);
Writeln('Entry:',HexStr(P));
Case Int64(P) of
-1,0,1:;//skip
else
begin
Pointer(P):=Pointer(mMap.pAddr+QWORD(P));
_Entry(P,PChar(pFileName));
end;
end;
end;
end.
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