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ppsspp/Core/HLE/sceKernelModule.cpp
Unknown W. Brackets b4eec4dca7 Perform the actual variable relocations, hurray.
2013-05-24 01:45:08 -07:00

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// Copyright (c) 2012- PPSSPP Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#include <fstream>
#include <algorithm>
#include <string>
#include "HLE.h"
#include "Core/Reporting.h"
#include "Common/FileUtil.h"
#include "../Host.h"
#include "Core/MIPS/MIPS.h"
#include "Core/MIPS/MIPSAnalyst.h"
#include "Core/ELF/ElfReader.h"
#include "Core/ELF/PBPReader.h"
#include "Core/ELF/PrxDecrypter.h"
#include "../Debugger/SymbolMap.h"
#include "../FileSystems/FileSystem.h"
#include "../FileSystems/MetaFileSystem.h"
#include "../Util/BlockAllocator.h"
#include "Core/CoreTiming.h"
#include "Core/PSPLoaders.h"
#include "Core/System.h"
#include "Core/MemMap.h"
#include "Core/Debugger/SymbolMap.h"
#include "sceKernel.h"
#include "sceKernelModule.h"
#include "sceKernelThread.h"
#include "sceKernelMemory.h"
#include "sceIo.h"
enum {
PSP_THREAD_ATTR_USER = 0x80000000
};
enum {
R_MIPS_NONE,
R_MIPS_16,
R_MIPS_32,
R_MIPS_REL32,
R_MIPS_26,
R_MIPS_HI16,
R_MIPS_LO16,
R_MIPS_GPREL16,
R_MIPS_LITERAL,
R_MIPS_GOT16,
R_MIPS_PC16,
R_MIPS_CALL16,
R_MIPS_GPREL32
};
enum {
// Function exports.
NID_MODULE_START = 0xD632ACDB,
NID_MODULE_STOP = 0xCEE8593C,
NID_MODULE_REBOOT_BEFORE = 0x2F064FA6,
NID_MODULE_REBOOT_PHASE = 0xADF12745,
NID_MODULE_BOOTSTART = 0xD3744BE0,
// Variable exports.
NID_MODULE_INFO = 0xF01D73A7,
NID_MODULE_START_THREAD_PARAMETER = 0x0F7C276C,
NID_MODULE_STOP_THREAD_PARAMETER = 0xCF0CC697,
NID_MODULE_REBOOT_BEFORE_THREAD_PARAMETER = 0xF4F4299D,
NID_MODULE_SDK_VERSION = 0x11B97506,
};
static const char *blacklistedModules[] = {
"sceATRAC3plus_Library",
"sceFont_Library",
"SceFont_Library",
"SceHttp_Library",
"sceMpeg_library",
"sceNetAdhocctl_Library",
"sceNetAdhocDownload_Library",
"sceNetAdhocMatching_Library",
"sceNetApDialogDummy_Library",
"sceNetAdhoc_Library",
"sceNetApctl_Library",
"sceNetInet_Library",
"sceNetResolver_Library",
"sceNet_Library",
"sceSsl_Module",
};
struct VarSymbol {
char moduleName[32];
u32 symAddr;
u32 nid;
u8 type;
};
struct NativeModule {
u32 next;
u16 attribute;
u8 version[2];
char name[28];
u32 status;
u32 unk1;
u32 usermod_thid;
u32 memid;
u32 mpidtext;
u32 mpiddata;
u32 ent_top;
u32 ent_size;
u32 stub_top;
u32 stub_size;
u32 module_start_func;
u32 module_stop_func;
u32 module_bootstart_func;
u32 module_reboot_before_func;
u32 module_reboot_phase_func;
u32 entry_addr;
u32 gp_value;
u32 text_addr;
u32 text_size;
u32 data_size;
u32 bss_size;
u32 nsegment;
u32 segmentaddr[4];
u32 segmentsize[4];
u32 module_start_thread_priority;
u32 module_start_thread_stacksize;
u32 module_start_thread_attr;
u32 module_stop_thread_priority;
u32 module_stop_thread_stacksize;
u32 module_stop_thread_attr;
u32 module_reboot_before_thread_priority;
u32 module_reboot_before_thread_stacksize;
u32 module_reboot_before_thread_attr;
};
// by QueryModuleInfo
struct ModuleInfo {
u32 nsegment;
u32 segmentaddr[4];
u32 segmentsize[4];
u32 entry_addr;
u32 gp_value;
u32 text_addr;
u32 text_size;
u32 data_size;
u32 bss_size;
u16 attribute;
u8 version[2];
char name[28];
};
class Module : public KernelObject
{
public:
Module() : memoryBlockAddr(0), isFake(false) {}
~Module() {
if (memoryBlockAddr) {
userMemory.Free(memoryBlockAddr);
}
}
const char *GetName() {return nm.name;}
const char *GetTypeName() {return "Module";}
void GetQuickInfo(char *ptr, int size)
{
// ignore size
sprintf(ptr, "%sname=%s gp=%08x entry=%08x",
isFake ? "faked " : "",
nm.name,
nm.gp_value,
nm.entry_addr);
}
static u32 GetMissingErrorCode() { return SCE_KERNEL_ERROR_UNKNOWN_MODULE; }
int GetIDType() const { return PPSSPP_KERNEL_TMID_Module; }
virtual void DoState(PointerWrap &p)
{
p.Do(nm);
p.Do(memoryBlockAddr);
p.Do(memoryBlockSize);
p.DoMarker("Module");
}
NativeModule nm;
u32 memoryBlockAddr;
u32 memoryBlockSize;
bool isFake;
};
KernelObject *__KernelModuleObject()
{
return new Module;
}
class AfterModuleEntryCall : public Action {
public:
AfterModuleEntryCall() {}
SceUID moduleID_;
u32 retValAddr;
virtual void run(MipsCall &call);
virtual void DoState(PointerWrap &p) {
p.Do(moduleID_);
p.Do(retValAddr);
p.DoMarker("AfterModuleEntryCall");
}
static Action *Create() {
return new AfterModuleEntryCall;
}
};
void AfterModuleEntryCall::run(MipsCall &call) {
Memory::Write_U32(retValAddr, currentMIPS->r[2]);
}
//////////////////////////////////////////////////////////////////////////
// MODULES
//////////////////////////////////////////////////////////////////////////
struct StartModuleInfo
{
u32 size;
u32 mpidtext;
u32 mpiddata;
u32 threadpriority;
u32 threadattributes;
};
struct SceKernelLMOption {
SceSize size;
SceUID mpidtext;
SceUID mpiddata;
unsigned int flags;
char position;
char access;
char creserved[2];
};
struct SceKernelSMOption {
SceSize size;
SceUID mpidstack;
SceSize stacksize;
int priority;
unsigned int attribute;
};
//////////////////////////////////////////////////////////////////////////
// STATE BEGIN
static int actionAfterModule;
static std::vector<VarSymbol> unresolvedVars;
static std::vector<VarSymbol> exportedVars;
// STATE END
//////////////////////////////////////////////////////////////////////////
void __KernelModuleInit()
{
actionAfterModule = __KernelRegisterActionType(AfterModuleEntryCall::Create);
}
void __KernelModuleDoState(PointerWrap &p)
{
p.Do(actionAfterModule);
__KernelRestoreActionType(actionAfterModule, AfterModuleEntryCall::Create);
VarSymbol vs = {""};
p.Do(unresolvedVars, vs);
p.Do(exportedVars, vs);
p.DoMarker("sceKernelModule");
}
void __KernelModuleShutdown()
{
unresolvedVars.clear();
exportedVars.clear();
}
void WriteVarSymbol(u32 exportAddress, u32 relocAddress, u8 type)
{
static u32 lastHI16RelocAddress = 0;
static u32 lastHI16ExportAddress = 0;
u32 relocData = Memory::Read_Instruction(relocAddress);
switch (type)
{
case R_MIPS_NONE:
WARN_LOG_REPORT(LOADER, "Var relocation type NONE - %08x => %08x", exportAddress, relocAddress);
break;
case R_MIPS_32:
relocData += exportAddress;
break;
// Not really tested, but should work...
/*
case R_MIPS_26:
if (exportAddress % 4 || (exportAddress >> 28) != ((relocAddress + 4) >> 28))
WARN_LOG_REPORT(LOADER, "Bad var relocation addresses for type 26 - %08x => %08x", exportAddress, relocAddress)
else
relocData = (relocData & ~0x03ffffff) | ((relocData + (exportAddress >> 2)) & 0x03ffffff);
break;
*/
case R_MIPS_HI16:
// After this will be an R_MIPS_LO16. If that addition overflows, we need to account for it in HI16.
// The R_MIPS_LO16 and R_MIPS_HI16 will often be *different* relocAddress values.
lastHI16RelocAddress = relocAddress;
lastHI16ExportAddress = exportAddress;
break;
case R_MIPS_LO16:
{
// The ABI requires that these come in pairs.
if (lastHI16ExportAddress != exportAddress)
{
ERROR_LOG_REPORT(LOADER, "HI16 and LO16 imports do not match for %08x => %08x/%08x (hi16 export: %08x)", exportAddress, lastHI16RelocAddress, relocAddress, lastHI16ExportAddress);
break;
}
u32 relocDataHi = Memory::Read_Instruction(lastHI16RelocAddress);
// Sign extend the existing low value (e.g. from addiu.)
u32 full = (relocDataHi << 16) + (s16)(u16)(relocData & 0xFFFF) + exportAddress;
// The low instruction will be a signed add, which means (full & 0x8000) will subtract.
// We add 1 in that case so that it ends up the right value.
u16 high = (full >> 16) + ((full & 0x8000) ? 1 : 0);
Memory::Write_U32((relocDataHi & ~0xFFFF) | high, lastHI16RelocAddress);
// And then this is the low relocation, hurray.
relocData = (relocData & ~0xFFFF) | (full & 0xFFFF);
}
break;
default:
WARN_LOG_REPORT(LOADER, "Unsupported var relocation type %d - %08x => %08x", type, exportAddress, relocAddress);
}
Memory::Write_U32(relocData, relocAddress);
}
void ImportVarSymbol(const char *moduleName, u32 nid, u32 address, u8 type)
{
_dbg_assert_msg_(HLE, moduleName != NULL, "Invalid module name.");
if (nid == 0)
{
// TODO: What's the right thing for this?
ERROR_LOG_REPORT(LOADER, "Var import with nid = 0, type = %d", type);
return;
}
if (!Memory::IsValidAddress(address))
{
ERROR_LOG_REPORT(LOADER, "Invalid address for var import nid = %08x, type = %d, addr = %08x", nid, type, address);
return;
}
for (auto it = exportedVars.begin(), end = exportedVars.end(); it != end; ++it)
{
if (!strncmp(it->moduleName, moduleName, KERNELOBJECT_MAX_NAME_LENGTH) && it->nid == nid)
{
WriteVarSymbol(it->symAddr, address, type);
return;
}
}
// It hasn't been exported yet, but hopefully it will later.
INFO_LOG(LOADER, "Variable (%s,%08x) unresolved, storing for later resolving", moduleName, nid);
VarSymbol vs = {"", address, nid, type};
strncpy(vs.moduleName, moduleName, KERNELOBJECT_MAX_NAME_LENGTH);
vs.moduleName[KERNELOBJECT_MAX_NAME_LENGTH] = '\0';
unresolvedVars.push_back(vs);
}
void ExportVarSymbol(const char *moduleName, u32 nid, u32 address)
{
_dbg_assert_msg_(HLE, moduleName != NULL, "Invalid module name.");
VarSymbol ex = {"", address, nid};
strncpy(ex.moduleName, moduleName, KERNELOBJECT_MAX_NAME_LENGTH);
ex.moduleName[KERNELOBJECT_MAX_NAME_LENGTH] = '\0';
exportedVars.push_back(ex);
for (auto it = unresolvedVars.begin(), end = unresolvedVars.end(); it != end; ++it)
{
if (strncmp(it->moduleName, moduleName, KERNELOBJECT_MAX_NAME_LENGTH) == 0 && it->nid == nid)
{
INFO_LOG(HLE,"Resolving var %s/%08x", moduleName, nid);
WriteVarSymbol(address, it->symAddr, it->type);
}
}
}
Module *__KernelLoadELFFromPtr(const u8 *ptr, u32 loadAddress, std::string *error_string)
{
Module *module = new Module;
kernelObjects.Create(module);
memset(&module->nm, 0, sizeof(module->nm));
u8 *newptr = 0;
if (*(u32*)ptr == 0x4543537e) { // "~SCE"
INFO_LOG(HLE, "~SCE module, skipping header");
ptr += *(u32*)(ptr + 4);
}
if (*(u32*)ptr == 0x5053507e) { // "~PSP"
// Decrypt module! YAY!
INFO_LOG(HLE, "Decrypting ~PSP file");
PSP_Header *head = (PSP_Header*)ptr;
const u8 *in = ptr;
u32 size = head->elf_size;
if (head->psp_size > size)
{
size = head->psp_size;
}
newptr = new u8[head->elf_size + head->psp_size];
ptr = newptr;
int ret = pspDecryptPRX(in, (u8*)ptr, head->psp_size);
if (ret == MISSING_KEY) {
// This should happen for all "kernel" modules so disabling.
// Reporting::ReportMessage("Missing PRX decryption key!");
*error_string = "Missing key";
delete [] newptr;
module->isFake = true;
strncpy(module->nm.name, head->modname, 28);
module->nm.entry_addr = -1;
module->nm.gp_value = -1;
return module;
}
else if (ret <= 0)
{
ERROR_LOG(HLE, "Failed decrypting PRX! That's not normal! ret = %i\n", ret);
Reporting::ReportMessage("Failed decrypting the PRX (ret = %i, size = %i, psp_size = %i)!", ret, head->elf_size, head->psp_size);
}
}
if (*(u32*)ptr != 0x464c457f)
{
ERROR_LOG_REPORT(HLE, "Wrong magic number %08x", *(u32*)ptr);
*error_string = "File corrupt";
if (newptr) {
delete [] newptr;
}
kernelObjects.Destroy<Module>(module->GetUID());
return 0;
}
// Open ELF reader
ElfReader reader((void*)ptr);
if (!reader.LoadInto(loadAddress))
{
ERROR_LOG(HLE, "LoadInto failed");
if (newptr)
{
delete [] newptr;
}
kernelObjects.Destroy<Module>(module->GetUID());
return 0;
}
module->memoryBlockAddr = reader.GetVaddr();
module->memoryBlockSize = reader.GetTotalSize();
struct PspModuleInfo
{
// 0, 0, 1, 1 ?
u16 moduleAttrs; //0x0000 User Mode, 0x1000 Kernel Mode
u16 moduleVersion;
// 28 bytes of module name, packed with 0's.
char name[28];
u32 gp; // ptr to MIPS GOT data (global offset table)
u32 libent; // ptr to .lib.ent section
u32 libentend; // ptr to end of .lib.ent section
u32 libstub; // ptr to .lib.stub section
u32 libstubend; // ptr to end of .lib.stub section
};
SectionID sceModuleInfoSection = reader.GetSectionByName(".rodata.sceModuleInfo");
PspModuleInfo *modinfo;
if (sceModuleInfoSection != -1)
modinfo = (PspModuleInfo *)Memory::GetPointer(reader.GetSectionAddr(sceModuleInfoSection));
else
modinfo = (PspModuleInfo *)Memory::GetPointer(reader.GetSegmentVaddr(0) + (reader.GetSegmentPaddr(0) & 0x7FFFFFFF) - reader.GetSegmentOffset(0));
module->nm.gp_value = modinfo->gp;
strncpy(module->nm.name, modinfo->name, 28);
// Check for module blacklist - we don't allow games to load these modules from disc
// as we have HLE implementations and the originals won't run in the emu because they
// directly access hardware or for other reasons.
for (u32 i = 0; i < ARRAY_SIZE(blacklistedModules); i++) {
if (strcmp(modinfo->name, blacklistedModules[i]) == 0) {
*error_string = "Blacklisted";
if (newptr)
{
delete [] newptr;
}
module->isFake = true;
module->nm.entry_addr = -1;
return module;
}
}
bool hasSymbols = false;
bool dontadd = false;
SectionID textSection = reader.GetSectionByName(".text");
if (textSection != -1)
{
u32 textStart = reader.GetSectionAddr(textSection);
u32 textSize = reader.GetSectionSize(textSection);
if (!host->AttemptLoadSymbolMap())
{
hasSymbols = reader.LoadSymbols();
if (!hasSymbols)
{
symbolMap.ResetSymbolMap();
MIPSAnalyst::ScanForFunctions(textStart, textStart+textSize);
}
}
else
{
dontadd = true;
}
}
else if (host->AttemptLoadSymbolMap())
{
dontadd = true;
}
INFO_LOG(LOADER,"Module %s: %08x %08x %08x", modinfo->name, modinfo->gp, modinfo->libent,modinfo->libstub);
struct PspLibStubEntry
{
u32 name;
u16 version;
u16 flags;
u8 size;
u8 numVars;
u16 numFuncs;
// each symbol has an associated nid; nidData is a pointer
// (in .rodata.sceNid section) to an array of longs, one
// for each function, which identifies the function whose
// address is to be inserted.
//
// The hash is the first 4 bytes of a SHA-1 hash of the function
// name. (Represented as a little-endian long, so the order
// of the bytes is reversed.)
u32 nidData;
// the address of the function stubs where the function address jumps
// should be filled in
u32 firstSymAddr;
// Optional, this is where var relocations are.
// They use the format: u32 addr, u32 nid, ...
// WARNING: May have garbage if size < 6.
u32 varData;
// Not sure what this is yet, assume garbage for now.
// TODO: Tales of the World: Radiant Mythology 2 has something here?
u32 extra;
};
DEBUG_LOG(LOADER,"===================================================");
u32 *entryPos = (u32 *)Memory::GetPointer(modinfo->libstub);
u32 *entryEnd = (u32 *)Memory::GetPointer(modinfo->libstubend);
bool needReport = false;
while (entryPos < entryEnd) {
PspLibStubEntry *entry = (PspLibStubEntry *)entryPos;
entryPos += entry->size;
const char *modulename;
if (Memory::IsValidAddress(entry->name)) {
modulename = Memory::GetCharPointer(entry->name);
} else {
modulename = "(invalidname)";
needReport = true;
}
DEBUG_LOG(LOADER, "Importing Module %s, stubs at %08x", modulename, entry->firstSymAddr);
if (entry->size != 5 && entry->size != 6) {
WARN_LOG_REPORT(LOADER, "Unexpected module entry size %d", entry->size);
needReport = true;
}
// If nidData is 0, only variables are being imported.
if (entry->nidData != 0) {
if (!Memory::IsValidAddress(entry->nidData)) {
ERROR_LOG_REPORT(LOADER, "Crazy nidData address %08x, skipping entire module", entry->nidData);
needReport = true;
continue;
}
u32 *nidDataPtr = (u32 *)Memory::GetPointer(entry->nidData);
for (int i = 0; i < entry->numFuncs; ++i) {
u32 addrToWriteSyscall = entry->firstSymAddr + i * 8;
DEBUG_LOG(LOADER, "%s : %08x", GetFuncName(modulename, nidDataPtr[i]), addrToWriteSyscall);
//write a syscall here
if (Memory::IsValidAddress(addrToWriteSyscall)) {
WriteSyscall(modulename, nidDataPtr[i], addrToWriteSyscall);
} else {
WARN_LOG_REPORT(LOADER, "Invalid address for syscall stub %s %08x", modulename, nidDataPtr[i]);
}
if (!dontadd) {
char temp[256];
sprintf(temp,"zz_%s", GetFuncName(modulename, nidDataPtr[i]));
symbolMap.AddSymbol(temp, addrToWriteSyscall, 8, ST_FUNCTION);
}
}
} else if (entry->numFuncs > 0) {
WARN_LOG_REPORT(LOADER, "Module entry with %d imports but no valid address", entry->numFuncs);
needReport = true;
}
if (entry->varData != 0) {
if (!Memory::IsValidAddress(entry->varData)) {
ERROR_LOG_REPORT(LOADER, "Crazy varData address %08x, skipping rest of module", entry->varData);
needReport = true;
continue;
}
for (int i = 0; i < entry->numVars; ++i) {
u32 varRefsPtr = Memory::Read_U32(entry->varData + i * 8);
u32 nid = Memory::Read_U32(entry->varData + i * 8 + 4);
if (!Memory::IsValidAddress(varRefsPtr)) {
WARN_LOG_REPORT(LOADER, "Bad relocation list address for nid %08x in %s", nid, modulename);
continue;
}
u32 *varRef = (u32 *)Memory::GetPointer(varRefsPtr);
for (; *varRef != 0; ++varRef) {
ImportVarSymbol(modulename, nid, (*varRef & 0x03FFFFFF) << 2, *varRef >> 26);
}
}
} else if (entry->numVars > 0) {
WARN_LOG_REPORT(LOADER, "Module entry with %d var imports but no valid address", entry->numVars);
needReport = true;
}
DEBUG_LOG(LOADER, "-------------------------------------------------------------");
}
if (needReport) {
std::string debugInfo;
entryPos = (u32 *)Memory::GetPointer(modinfo->libstub);
while (entryPos < entryEnd) {
PspLibStubEntry *entry = (PspLibStubEntry *)entryPos;
entryPos += entry->size;
char temp[512];
const char *modulename;
if (Memory::IsValidAddress(entry->name)) {
modulename = Memory::GetCharPointer(entry->name);
} else {
modulename = "(invalidname)";
}
snprintf(temp, sizeof(temp), "%s ver=%04x, flags=%04x, size=%d, numVars=%d, numFuncs=%d, nidData=%08x, firstSym=%08x, varData=%08x, extra=%08x\n",
modulename, entry->version, entry->flags, entry->size, entry->numVars, entry->numFuncs, entry->nidData, entry->firstSymAddr, entry->size >= 6 ? entry->varData : 0, entry->size >= 7 ? entry->extra : 0);
debugInfo += temp;
}
Reporting::ReportMessage("Module linking debug info:\n%s", debugInfo.c_str());
}
// Look at the exports, too.
struct PspLibEntEntry
{
u32 name; /* ent's name (module name) address */
u16 version;
u16 flags;
u8 size;
u8 vcount;
u16 fcount;
u32 resident;
};
u32 *entPos = (u32 *)Memory::GetPointer(modinfo->libent);
u32 *entEnd = (u32 *)Memory::GetPointer(modinfo->libentend);
for (int m = 0; entPos < entEnd; ++m) {
PspLibEntEntry *ent = (PspLibEntEntry *)entPos;
entPos += ent->size;
if (ent->size == 0) {
WARN_LOG_REPORT(LOADER, "Invalid export entry size %d", ent->size);
entPos += 4;
continue;
}
const char *name;
if (Memory::IsValidAddress(ent->name)) {
name = Memory::GetCharPointer(ent->name);
} else if (ent->name == 0) {
name = module->nm.name;
} else {
name = "invalid?";
}
INFO_LOG(HLE, "Exporting ent %d named %s, %d funcs, %d vars, resident %08x", m, name, ent->fcount, ent->vcount, ent->resident);
if (!Memory::IsValidAddress(ent->resident)) {
WARN_LOG_REPORT(LOADER, "Invalid export resident address %08x", ent->resident);
continue;
}
u32 *residentPtr = (u32 *)Memory::GetPointer(ent->resident);
u32 *exportPtr = residentPtr + ent->fcount + ent->vcount;
for (u32 j = 0; j < ent->fcount; j++) {
u32 nid = residentPtr[j];
u32 exportAddr = exportPtr[j];
switch (nid) {
case NID_MODULE_START:
module->nm.module_start_func = exportAddr;
break;
case NID_MODULE_STOP:
module->nm.module_stop_func = exportAddr;
break;
case NID_MODULE_REBOOT_BEFORE:
module->nm.module_reboot_before_func = exportAddr;
break;
case NID_MODULE_REBOOT_PHASE:
module->nm.module_reboot_phase_func = exportAddr;
break;
case NID_MODULE_BOOTSTART:
module->nm.module_bootstart_func = exportAddr;
break;
default:
ResolveSyscall(name, nid, exportAddr);
}
}
for (u32 j = 0; j < ent->vcount; j++) {
u32 nid = residentPtr[ent->fcount + j];
u32 exportAddr = exportPtr[ent->fcount + j];
switch (nid) {
case NID_MODULE_INFO:
break;
case NID_MODULE_START_THREAD_PARAMETER:
if (Memory::Read_U32(exportAddr) != 3)
WARN_LOG_REPORT(LOADER, "Strange value at module_start_thread_parameter export: %08x", Memory::Read_U32(exportAddr));
module->nm.module_start_thread_priority = Memory::Read_U32(exportAddr + 4);
module->nm.module_start_thread_stacksize = Memory::Read_U32(exportAddr + 8);
module->nm.module_start_thread_attr = Memory::Read_U32(exportAddr + 12);
break;
case NID_MODULE_STOP_THREAD_PARAMETER:
if (Memory::Read_U32(exportAddr) != 3)
WARN_LOG_REPORT(LOADER, "Strange value at module_stop_thread_parameter export: %08x", Memory::Read_U32(exportAddr));
module->nm.module_stop_thread_priority = Memory::Read_U32(exportAddr + 4);
module->nm.module_stop_thread_stacksize = Memory::Read_U32(exportAddr + 8);
module->nm.module_stop_thread_attr = Memory::Read_U32(exportAddr + 12);
break;
case NID_MODULE_REBOOT_BEFORE_THREAD_PARAMETER:
if (Memory::Read_U32(exportAddr) != 3)
WARN_LOG_REPORT(LOADER, "Strange value at module_reboot_before_thread_parameter export: %08x", Memory::Read_U32(exportAddr));
module->nm.module_reboot_before_thread_priority = Memory::Read_U32(exportAddr + 4);
module->nm.module_reboot_before_thread_stacksize = Memory::Read_U32(exportAddr + 8);
module->nm.module_reboot_before_thread_attr = Memory::Read_U32(exportAddr + 12);
break;
case NID_MODULE_SDK_VERSION:
DEBUG_LOG(LOADER, "Module SDK: %08x", Memory::Read_U32(exportAddr));
break;
default:
ExportVarSymbol(name, nid, exportAddr);
break;
}
}
}
module->nm.entry_addr = reader.GetEntryPoint();
// use module_start_func instead of entry_addr if entry_addr is 0
if (module->nm.entry_addr == 0)
module->nm.entry_addr = module->nm.module_start_func;
if (newptr)
{
delete [] newptr;
}
return module;
}
bool __KernelLoadPBP(const char *filename, std::string *error_string)
{
static const char *FileNames[] =
{
"PARAM.SFO", "ICON0.PNG", "ICON1.PMF", "UNKNOWN.PNG",
"PIC1.PNG", "SND0.AT3", "UNKNOWN.PSP", "UNKNOWN.PSAR"
};
PBPReader pbp(filename);
if (!pbp.IsValid()) {
ERROR_LOG(LOADER,"%s is not a valid homebrew PSP1.0 PBP",filename);
*error_string = "Not a valid homebrew PBP";
return false;
}
size_t elfSize;
u8 *elfData = pbp.GetSubFile(PBP_EXECUTABLE_PSP, &elfSize);
Module *module = __KernelLoadELFFromPtr(elfData, PSP_GetDefaultLoadAddress(), error_string);
if (!module) {
delete [] elfData;
return false;
}
mipsr4k.pc = module->nm.entry_addr;
delete [] elfData;
return true;
}
Module *__KernelLoadModule(u8 *fileptr, SceKernelLMOption *options, std::string *error_string)
{
Module *module = 0;
// Check for PBP
if (memcmp(fileptr, "\0PBP", 4) == 0)
{
// PBP!
u32 version;
memcpy(&version, fileptr + 4, 4);
u32 offset0, offsets[16];
int numfiles;
memcpy(&offset0, fileptr + 8, 4);
numfiles = (offset0 - 8)/4;
offsets[0] = offset0;
for (int i = 1; i < numfiles; i++)
memcpy(&offsets[i], fileptr + 12 + 4*i, 4);
module = __KernelLoadELFFromPtr(fileptr + offsets[5], PSP_GetDefaultLoadAddress(), error_string);
}
else
{
module = __KernelLoadELFFromPtr(fileptr, PSP_GetDefaultLoadAddress(), error_string);
}
return module;
}
void __KernelStartModule(Module *m, int args, const char *argp, SceKernelSMOption *options)
{
if (m->nm.module_start_func != 0 && m->nm.module_start_func != (u32)-1)
{
if (m->nm.module_start_func != m->nm.entry_addr)
WARN_LOG_REPORT(LOADER, "Main module has start func (%08x) different from entry (%08x)?", m->nm.module_start_func, m->nm.entry_addr);
}
__KernelSetupRootThread(m->GetUID(), args, argp, options->priority, options->stacksize, options->attribute);
//TODO: if current thread, put it in wait state, waiting for the new thread
}
u32 __KernelGetModuleGP(SceUID uid)
{
u32 error;
Module *module = kernelObjects.Get<Module>(uid, error);
if (module)
{
return module->nm.gp_value;
}
else
{
return 0;
}
}
bool __KernelLoadExec(const char *filename, SceKernelLoadExecParam *param, std::string *error_string)
{
// Wipe kernel here, loadexec should reset the entire system
if (__KernelIsRunning())
{
__KernelShutdown();
//HLE needs to be reset here
HLEShutdown();
HLEInit();
}
__KernelModuleInit();
__KernelInit();
PSPFileInfo info = pspFileSystem.GetFileInfo(filename);
if (!info.exists) {
ERROR_LOG(LOADER, "Failed to load executable %s - file doesn't exist", filename);
*error_string = "Could not find executable";
return false;
}
u32 handle = pspFileSystem.OpenFile(filename, FILEACCESS_READ);
u8 *temp = new u8[(int)info.size + 0x1000000];
pspFileSystem.ReadFile(handle, temp, (size_t)info.size);
Module *module = __KernelLoadModule(temp, 0, error_string);
if (!module || module->isFake)
{
if (module)
kernelObjects.Destroy<Module>(module->GetUID());
ERROR_LOG(LOADER, "Failed to load module %s", filename);
*error_string = "Failed to load executable: " + *error_string;
delete [] temp;
return false;
}
mipsr4k.pc = module->nm.entry_addr;
INFO_LOG(LOADER, "Module entry: %08x", mipsr4k.pc);
delete [] temp;
pspFileSystem.CloseFile(handle);
SceKernelSMOption option;
option.size = sizeof(SceKernelSMOption);
option.attribute = PSP_THREAD_ATTR_USER;
option.mpidstack = 2;
option.priority = 0x20;
option.stacksize = 0x40000; // crazy? but seems to be the truth
// Replace start options with module-specified values if they exist.
if (module->nm.module_start_thread_attr != 0)
option.attribute = module->nm.module_start_thread_attr;
if (module->nm.module_start_thread_priority != 0)
option.priority = module->nm.module_start_thread_priority;
if (module->nm.module_start_thread_stacksize != 0)
option.stacksize = module->nm.module_start_thread_stacksize;
__KernelStartModule(module, (u32)strlen(filename) + 1, filename, &option);
__KernelStartIdleThreads(module->GetUID());
return true;
}
//TODO: second param
int sceKernelLoadExec(const char *filename, u32 paramPtr)
{
SceKernelLoadExecParam *param = 0;
if (paramPtr)
{
param = (SceKernelLoadExecParam*)Memory::GetPointer(paramPtr);
}
PSPFileInfo info = pspFileSystem.GetFileInfo(filename);
if (!info.exists) {
ERROR_LOG(LOADER, "sceKernelLoadExec(%s, ...): File does not exist", filename);
return SCE_KERNEL_ERROR_NOFILE;
}
s64 size = (s64)info.size;
if (!size)
{
ERROR_LOG(LOADER, "sceKernelLoadExec(%s, ...): File is size 0", filename);
return SCE_KERNEL_ERROR_ILLEGAL_OBJECT;
}
DEBUG_LOG(HLE,"sceKernelLoadExec(name=%s,...)", filename);
std::string error_string;
if (!__KernelLoadExec(filename, param, &error_string)) {
ERROR_LOG(HLE, "sceKernelLoadExec failed: %s", error_string.c_str());
return -1;
}
return 0;
}
u32 sceKernelLoadModule(const char *name, u32 flags, u32 optionAddr)
{
if (!name) {
ERROR_LOG(LOADER, "sceKernelLoadModule(NULL, %08x): Bad name", flags);
return SCE_KERNEL_ERROR_ILLEGAL_ADDR;
}
PSPFileInfo info = pspFileSystem.GetFileInfo(name);
std::string error_string;
s64 size = (s64)info.size;
if (!info.exists) {
ERROR_LOG(LOADER, "sceKernelLoadModule(%s, %08x): File does not exist", name, flags);
return SCE_KERNEL_ERROR_NOFILE;
}
if (!size) {
ERROR_LOG(LOADER, "sceKernelLoadModule(%s, %08x): Module file is size 0", name, flags);
return SCE_KERNEL_ERROR_ILLEGAL_OBJECT;
}
DEBUG_LOG(LOADER, "sceKernelLoadModule(%s, %08x)", name, flags);
SceKernelLMOption *lmoption = 0;
int position = 0;
// TODO: Use position to decide whether to load high or low
if (optionAddr) {
lmoption = (SceKernelLMOption *)Memory::GetPointer(optionAddr);
}
Module *module = 0;
u8 *temp = new u8[(int)size];
u32 handle = pspFileSystem.OpenFile(name, FILEACCESS_READ);
pspFileSystem.ReadFile(handle, temp, (size_t)size);
module = __KernelLoadELFFromPtr(temp, 0, &error_string);
delete [] temp;
pspFileSystem.CloseFile(handle);
if (!module) {
// Module was blacklisted or couldn't be decrypted, which means it's a kernel module we don't want to run.
// Let's just act as if it worked.
NOTICE_LOG(LOADER, "Module %s is blacklisted or undecryptable - we lie about success", name);
return 1;
}
if (lmoption) {
INFO_LOG(HLE,"%i=sceKernelLoadModule(name=%s,flag=%08x,%08x,%08x,%08x,position = %08x)",
module->GetUID(),name,flags,
lmoption->size,lmoption->mpidtext,lmoption->mpiddata,lmoption->position);
} else {
INFO_LOG(HLE,"%i=sceKernelLoadModule(name=%s,flag=%08x,(...))", module->GetUID(), name, flags);
}
// TODO: This is not the right timing and probably not the right wait type, just an approximation.
return hleDelayResult(module->GetUID(), "module loaded", 500);
}
void sceKernelStartModule(u32 moduleId, u32 argsize, u32 argAddr, u32 returnValueAddr, u32 optionAddr)
{
// Dunno what these three defaults should be...
u32 priority = 0x20;
u32 stacksize = 0x40000;
u32 attr = 0;
int stackPartition = 0;
if (optionAddr) {
SceKernelSMOption smoption;
Memory::ReadStruct(optionAddr, &smoption);;
if (smoption.priority != 0) {
priority = smoption.priority;
}
attr = smoption.attribute;
if (smoption.stacksize != 0) {
stacksize = smoption.stacksize;
}
stackPartition = smoption.mpidstack;
}
u32 error;
Module *module = kernelObjects.Get<Module>(moduleId, error);
if (!module) {
RETURN(error);
return;
} else if (module->isFake) {
INFO_LOG(HLE, "sceKernelStartModule(%d,asize=%08x,aptr=%08x,retptr=%08x,%08x): faked (undecryptable module)",
moduleId,argsize,argAddr,returnValueAddr,optionAddr);
} else {
WARN_LOG(HLE, "sceKernelStartModule(%d,asize=%08x,aptr=%08x,retptr=%08x,%08x)",
moduleId,argsize,argAddr,returnValueAddr,optionAddr);
u32 entryAddr = module->nm.entry_addr;
if (entryAddr == (u32)-1 || entryAddr == module->memoryBlockAddr - 1) {
// TODO: Do these always take effect, or do they not override optionAddr?
if (module->nm.module_start_func != 0 && module->nm.module_start_func != (u32)-1) {
entryAddr = module->nm.module_start_func;
if (module->nm.module_start_thread_priority != 0) {
priority = module->nm.module_start_thread_priority;
}
attr = module->nm.module_start_thread_attr;
if (module->nm.module_start_thread_stacksize != 0) {
stacksize = module->nm.module_start_thread_stacksize;
}
} else {
// TODO: Fix, check return value? Or do we call nothing?
RETURN(moduleId);
return;
}
}
SceUID threadID = __KernelCreateThread(module->nm.name, moduleId, entryAddr, priority, stacksize, attr, 0);
sceKernelStartThread(threadID, argsize, argAddr);
// TODO: This will probably return the wrong value?
sceKernelWaitThreadEnd(threadID, 0);
}
// TODO: Is this the correct return value?
RETURN(moduleId);
}
u32 sceKernelStopModule(u32 moduleId, u32 argSize, u32 argAddr, u32 returnValueAddr, u32 optionAddr)
{
ERROR_LOG(HLE,"UNIMPL sceKernelStopModule(%08x, %08x, %08x, %08x, %08x)", moduleId, argSize, argAddr, returnValueAddr, optionAddr);
// We should call the "stop" entry point and return the value in returnValueAddr. See StartModule.
// Possibly also kill all its threads?
return 0;
}
u32 sceKernelUnloadModule(u32 moduleId)
{
INFO_LOG(HLE,"sceKernelUnloadModule(%i)", moduleId);
u32 error;
Module *module = kernelObjects.Get<Module>(moduleId, error);
if (!module)
return error;
kernelObjects.Destroy<Module>(moduleId);
return 0;
}
u32 sceKernelStopUnloadSelfModuleWithStatus(u32 exitCode, u32 argSize, u32 argp, u32 statusAddr, u32 optionAddr)
{
ERROR_LOG_REPORT(HLE, "UNIMPL sceKernelStopUnloadSelfModuleWithStatus(%08x, %08x, %08x, %08x, %08x): game has likely crashed", exitCode, argSize, argp, statusAddr, optionAddr);
// Probably similar to sceKernelStopModule, but games generally call this when they die.
return 0;
}
struct GetModuleIdByAddressArg
{
u32 addr;
SceUID result;
};
bool __GetModuleIdByAddressIterator(Module *module, GetModuleIdByAddressArg *state)
{
const u32 start = module->memoryBlockAddr, size = module->memoryBlockSize;
if (start <= state->addr && start + size > state->addr)
{
state->result = module->GetUID();
return false;
}
return true;
}
u32 sceKernelGetModuleIdByAddress(u32 moduleAddr)
{
GetModuleIdByAddressArg state;
state.addr = moduleAddr;
state.result = SCE_KERNEL_ERROR_UNKNOWN_MODULE;
kernelObjects.Iterate(&__GetModuleIdByAddressIterator, &state);
if (state.result == SCE_KERNEL_ERROR_UNKNOWN_MODULE)
ERROR_LOG(HLE, "sceKernelGetModuleIdByAddress(%08x): module not found", moduleAddr)
else
DEBUG_LOG(HLE, "%x=sceKernelGetModuleIdByAddress(%08x)", state.result, moduleAddr);
return state.result;
}
u32 sceKernelGetModuleId()
{
INFO_LOG(HLE,"sceKernelGetModuleId()");
return __KernelGetCurThreadModuleId();
}
u32 sceKernelFindModuleByName(const char *name)
{
ERROR_LOG_REPORT(HLE, "UNIMPL sceKernelFindModuleByName(%s)", name);
return 1;
}
u32 sceKernelLoadModuleByID(u32 id, u32 flags, u32 lmoptionPtr)
{
u32 error;
u32 handle = __IoGetFileHandleFromId(id, error);
if (handle == (u32)-1) {
ERROR_LOG(HLE,"sceKernelLoadModuleByID(%08x, %08x, %08x): could not open file id",id,flags,lmoptionPtr);
return error;
}
SceKernelLMOption *lmoption = 0;
if (lmoptionPtr) {
lmoption = (SceKernelLMOption *)Memory::GetPointer(lmoptionPtr);
}
u32 pos = (u32) pspFileSystem.SeekFile(handle, 0, FILEMOVE_CURRENT);
size_t size = pspFileSystem.SeekFile(handle, 0, FILEMOVE_END);
std::string error_string;
pspFileSystem.SeekFile(handle, pos, FILEMOVE_BEGIN);
Module *module = 0;
u8 *temp = new u8[size];
pspFileSystem.ReadFile(handle, temp, size);
module = __KernelLoadELFFromPtr(temp, 0, &error_string);
delete [] temp;
if (!module) {
// Module was blacklisted or couldn't be decrypted, which means it's a kernel module we don't want to run.
// Let's just act as if it worked.
NOTICE_LOG(LOADER, "Module %d is blacklisted or undecryptable - we lie about success", id);
return 1;
}
if (lmoption) {
INFO_LOG(HLE,"%i=sceKernelLoadModuleByID(%d,flag=%08x,%08x,%08x,%08x,position = %08x)",
module->GetUID(),id,flags,
lmoption->size,lmoption->mpidtext,lmoption->mpiddata,lmoption->position);
} else {
INFO_LOG(HLE,"%i=sceKernelLoadModuleByID(%d,flag=%08x,(...))", module->GetUID(), id, flags);
}
return module->GetUID();
}
u32 sceKernelLoadModuleDNAS(const char *name, u32 flags)
{
ERROR_LOG_REPORT(HLE, "UNIMPL 0=sceKernelLoadModuleDNAS()");
return 0;
}
u32 sceKernelQueryModuleInfo(u32 uid, u32 infoAddr)
{
INFO_LOG(HLE, "sceKernelQueryModuleInfo(%i, %08x)", uid, infoAddr);
u32 error;
Module *module = kernelObjects.Get<Module>(uid, error);
if (!module)
return error;
if (!Memory::IsValidAddress(infoAddr)) {
ERROR_LOG(HLE, "sceKernelQueryModuleInfo(%i, %08x) - bad infoAddr", uid, infoAddr);
return -1;
}
ModuleInfo info;
memcpy(info.segmentaddr, module->nm.segmentaddr, sizeof(info.segmentaddr));
memcpy(info.segmentsize, module->nm.segmentsize, sizeof(info.segmentsize));
info.nsegment = module->nm.nsegment;
info.entry_addr = module->nm.entry_addr;
info.gp_value = module->nm.gp_value;
info.text_addr = module->nm.text_addr;
info.text_size = module->nm.text_size;
info.data_size = module->nm.data_size;
info.bss_size = module->nm.bss_size;
info.attribute = module->nm.attribute;
info.version[0] = module->nm.version[0];
info.version[1] = module->nm.version[1];
memcpy(info.name, module->nm.name, 28);
Memory::WriteStruct(infoAddr, &info);
return 0;
}
const HLEFunction ModuleMgrForUser[] =
{
{0x977DE386,&WrapU_CUU<sceKernelLoadModule>,"sceKernelLoadModule"},
{0xb7f46618,&WrapU_UUU<sceKernelLoadModuleByID>,"sceKernelLoadModuleByID"},
{0x50F0C1EC,&WrapV_UUUUU<sceKernelStartModule>,"sceKernelStartModule"},
{0xD675EBB8,&sceKernelExitGame,"sceKernelSelfStopUnloadModule"}, //HACK
{0xd1ff982a,&WrapU_UUUUU<sceKernelStopModule>,"sceKernelStopModule"},
{0x2e0911aa,WrapU_U<sceKernelUnloadModule>,"sceKernelUnloadModule"},
{0x710F61B5,0,"sceKernelLoadModuleMs"},
{0xF9275D98,0,"sceKernelLoadModuleBufferUsbWlan"}, ///???
{0xCC1D3699,0,"sceKernelStopUnloadSelfModule"},
{0x748CBED9,WrapU_UU<sceKernelQueryModuleInfo>,"sceKernelQueryModuleInfo"},
{0xd8b73127,&WrapU_U<sceKernelGetModuleIdByAddress>, "sceKernelGetModuleIdByAddress"},
{0xf0a26395,WrapU_V<sceKernelGetModuleId>, "sceKernelGetModuleId"},
{0x8f2df740,WrapU_UUUUU<sceKernelStopUnloadSelfModuleWithStatus>,"sceKernelStopUnloadSelfModuleWithStatus"},
{0xfef27dc1,&WrapU_CU<sceKernelLoadModuleDNAS> , "sceKernelLoadModuleDNAS"},
{0x644395e2,0,"sceKernelGetModuleIdList"},
{0xf2d8d1b4,0,"ModuleMgrForUser_F2D8D1B4"},
};
void Register_ModuleMgrForUser()
{
RegisterModule("ModuleMgrForUser", ARRAY_SIZE(ModuleMgrForUser), ModuleMgrForUser);
}
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