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PPUModule.cpp
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PPUModule.cpp
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#include "stdafx.h"
#include "Emu/Cell/PPUModule.h"
#include "Utilities/VirtualMemory.h"
#include "Utilities/bin_patch.h"
#include "Utilities/StrUtil.h"
#include "Crypto/sha1.h"
#include "Crypto/unself.h"
#include "Loader/ELF.h"
#include "Emu/VFS.h"
#include "Emu/Cell/PPUOpcodes.h"
#include "Emu/Cell/PPUAnalyser.h"
#include "Emu/Cell/lv2/sys_process.h"
#include "Emu/Cell/lv2/sys_prx.h"
#include "Emu/Cell/lv2/sys_memory.h"
#include "Emu/Cell/lv2/sys_overlay.h"
#include "Emu/Cell/Modules/StaticHLE.h"
#include <map>
#include <set>
#include <algorithm>
LOG_CHANNEL(ppu_loader);
extern void ppu_initialize_syscalls();
extern std::string ppu_get_function_name(const std::string& module, u32 fnid);
extern std::string ppu_get_variable_name(const std::string& module, u32 vnid);
extern void ppu_register_range(u32 addr, u32 size);
extern void ppu_register_function_at(u32 addr, u32 size, ppu_function_t ptr);
extern void ppu_initialize(const ppu_module& info);
extern void ppu_initialize();
extern void sys_initialize_tls(ppu_thread&, u64, u32, u32, u32);
// HLE function name cache
std::vector<std::string> g_ppu_function_names;
template <>
void fmt_class_string<lib_loading_type>::format(std::string& out, u64 arg)
{
format_enum(out, arg, [](lib_loading_type value)
{
switch (value)
{
case lib_loading_type::manual: return "Manually load selected libraries";
case lib_loading_type::hybrid: return "Load automatic and manual selection";
case lib_loading_type::liblv2only: return "Load liblv2.sprx only";
case lib_loading_type::liblv2both: return "Load liblv2.sprx and manual selection";
case lib_loading_type::liblv2list: return "Load liblv2.sprx and strict selection";
}
return unknown;
});
}
extern u32 ppu_generate_id(const char* name)
{
// Symbol name suffix
const auto suffix = "\x67\x59\x65\x99\x04\x25\x04\x90\x56\x64\x27\x49\x94\x89\x74\x1A";
sha1_context ctx;
u8 output[20];
// Compute SHA-1 hash
sha1_starts(&ctx);
sha1_update(&ctx, reinterpret_cast<const u8*>(name), std::strlen(name));
sha1_update(&ctx, reinterpret_cast<const u8*>(suffix), std::strlen(suffix));
sha1_finish(&ctx, output);
return reinterpret_cast<le_t<u32>&>(output[0]);
}
ppu_static_module::ppu_static_module(const char* name)
: name(name)
{
ppu_module_manager::register_module(this);
}
std::unordered_map<std::string, ppu_static_module*>& ppu_module_manager::access()
{
static std::unordered_map<std::string, ppu_static_module*> map;
return map;
}
void ppu_module_manager::register_module(ppu_static_module* module)
{
access().emplace(module->name, module);
}
ppu_static_function& ppu_module_manager::access_static_function(const char* module, u32 fnid)
{
auto& res = access().at(module)->functions[fnid];
if (res.name)
{
fmt::throw_exception("PPU FNID duplication in module %s (%s, 0x%x)", module, res.name, fnid);
}
return res;
}
ppu_static_variable& ppu_module_manager::access_static_variable(const char* module, u32 vnid)
{
auto& res = access().at(module)->variables[vnid];
if (res.name)
{
fmt::throw_exception("PPU VNID duplication in module %s (%s, 0x%x)", module, res.name, vnid);
}
return res;
}
const ppu_static_module* ppu_module_manager::get_module(const std::string& name)
{
const auto& map = access();
const auto found = map.find(name);
return found != map.end() ? found->second : nullptr;
}
// Global linkage information
struct ppu_linkage_info
{
struct module
{
struct info
{
ppu_static_function* static_func = nullptr;
ppu_static_variable* static_var = nullptr;
u32 export_addr = 0;
std::set<u32> imports;
std::set<u32> frefss;
};
// FNID -> (export; [imports...])
std::unordered_map<u32, info, value_hash<u32>> functions;
std::unordered_map<u32, info, value_hash<u32>> variables;
// Obsolete
bool imported = false;
};
// Module map
std::unordered_map<std::string, module> modules;
};
// Initialize static modules.
static void ppu_initialize_modules(ppu_linkage_info* link)
{
if (!link->modules.empty())
{
return;
}
ppu_initialize_syscalls();
const std::initializer_list<const ppu_static_module*> registered
{
&ppu_module_manager::cellAdec,
&ppu_module_manager::cellAtrac,
&ppu_module_manager::cellAtracMulti,
&ppu_module_manager::cellAudio,
&ppu_module_manager::cellAvconfExt,
&ppu_module_manager::cellAuthDialogUtility,
&ppu_module_manager::cellBGDL,
&ppu_module_manager::cellCamera,
&ppu_module_manager::cellCelp8Enc,
&ppu_module_manager::cellCelpEnc,
&ppu_module_manager::cellCrossController,
&ppu_module_manager::cellDaisy,
&ppu_module_manager::cellDmux,
&ppu_module_manager::cellDtcpIpUtility,
&ppu_module_manager::cellFiber,
&ppu_module_manager::cellFont,
&ppu_module_manager::cellFontFT,
&ppu_module_manager::cell_FreeType2,
&ppu_module_manager::cellFs,
&ppu_module_manager::cellGame,
&ppu_module_manager::cellGameExec,
&ppu_module_manager::cellGcmSys,
&ppu_module_manager::cellGem,
&ppu_module_manager::cellGifDec,
&ppu_module_manager::cellHttp,
&ppu_module_manager::cellHttps,
&ppu_module_manager::cellHttpUtil,
&ppu_module_manager::cellImeJp,
&ppu_module_manager::cellJpgDec,
&ppu_module_manager::cellJpgEnc,
&ppu_module_manager::cellKey2char,
&ppu_module_manager::cellL10n,
&ppu_module_manager::cellLibprof,
&ppu_module_manager::cellMic,
&ppu_module_manager::cellMusic,
&ppu_module_manager::cellMusicDecode,
&ppu_module_manager::cellMusicExport,
&ppu_module_manager::cellNetAoi,
&ppu_module_manager::cellNetCtl,
&ppu_module_manager::cellOskDialog,
&ppu_module_manager::cellOvis,
&ppu_module_manager::cellPamf,
&ppu_module_manager::cellPesmUtility,
&ppu_module_manager::cellPhotoDecode,
&ppu_module_manager::cellPhotoExport,
&ppu_module_manager::cellPhotoImportUtil,
&ppu_module_manager::cellPngDec,
&ppu_module_manager::cellPngEnc,
&ppu_module_manager::cellPrint,
&ppu_module_manager::cellRec,
&ppu_module_manager::cellRemotePlay,
&ppu_module_manager::cellResc,
&ppu_module_manager::cellRtc,
&ppu_module_manager::cellRtcAlarm,
&ppu_module_manager::cellRudp,
&ppu_module_manager::cellSail,
&ppu_module_manager::cellSailRec,
&ppu_module_manager::cellSaveData,
&ppu_module_manager::cellMinisSaveData,
&ppu_module_manager::cellScreenShot,
&ppu_module_manager::cellSearch,
&ppu_module_manager::cellSheap,
&ppu_module_manager::cellSpudll,
&ppu_module_manager::cellSpurs,
&ppu_module_manager::cellSpursJq,
&ppu_module_manager::cellSsl,
&ppu_module_manager::cellSubDisplay,
&ppu_module_manager::cellSync,
&ppu_module_manager::cellSync2,
&ppu_module_manager::cellSysconf,
&ppu_module_manager::cellSysmodule,
&ppu_module_manager::cellSysutil,
&ppu_module_manager::cellSysutilAp,
&ppu_module_manager::cellSysutilAvc2,
&ppu_module_manager::cellSysutilAvcExt,
&ppu_module_manager::cellSysutilNpEula,
&ppu_module_manager::cellSysutilMisc,
&ppu_module_manager::cellUsbd,
&ppu_module_manager::cellUsbPspcm,
&ppu_module_manager::cellUserInfo,
&ppu_module_manager::cellVdec,
&ppu_module_manager::cellVideoExport,
&ppu_module_manager::cellVideoPlayerUtility,
&ppu_module_manager::cellVideoUpload,
&ppu_module_manager::cellVoice,
&ppu_module_manager::cellVpost,
&ppu_module_manager::libad_async,
&ppu_module_manager::libad_core,
&ppu_module_manager::libmedi,
&ppu_module_manager::libmixer,
&ppu_module_manager::libsnd3,
&ppu_module_manager::libsynth2,
&ppu_module_manager::sceNp,
&ppu_module_manager::sceNp2,
&ppu_module_manager::sceNpClans,
&ppu_module_manager::sceNpCommerce2,
&ppu_module_manager::sceNpMatchingInt,
&ppu_module_manager::sceNpSns,
&ppu_module_manager::sceNpTrophy,
&ppu_module_manager::sceNpTus,
&ppu_module_manager::sceNpUtil,
&ppu_module_manager::sys_io,
&ppu_module_manager::sys_net,
&ppu_module_manager::sysPrxForUser,
&ppu_module_manager::sys_libc,
&ppu_module_manager::sys_lv2dbg,
&ppu_module_manager::static_hle,
};
// Initialize double-purpose fake OPD array for HLE functions
const auto& hle_funcs = ppu_function_manager::get();
// Allocate memory for the array (must be called after fixed allocations)
ppu_function_manager::addr = vm::alloc(::size32(hle_funcs) * 8, vm::main);
// Initialize as PPU executable code
ppu_register_range(ppu_function_manager::addr, ::size32(hle_funcs) * 8);
// Fill the array (visible data: self address and function index)
for (u32 addr = ppu_function_manager::addr, index = 0; index < hle_funcs.size(); addr += 8, index++)
{
// Function address = current address, RTOC = BLR instruction for the interpreter
vm::write32(addr + 0, addr);
vm::write32(addr + 4, ppu_instructions::BLR());
// Register the HLE function directly
ppu_register_function_at(addr + 0, 4, hle_funcs[index]);
ppu_register_function_at(addr + 4, 4, nullptr);
}
// Set memory protection to read-only
vm::page_protect(ppu_function_manager::addr, ::align(::size32(hle_funcs) * 8, 0x1000), 0, 0, vm::page_writable);
// Initialize function names
const bool is_first = g_ppu_function_names.empty();
if (is_first)
{
g_ppu_function_names.resize(hle_funcs.size());
g_ppu_function_names[0] = "INVALID";
g_ppu_function_names[1] = "HLE RETURN";
}
// For HLE variable allocation
u32 alloc_addr = 0;
// "Use" all the modules for correct linkage
for (auto& module : registered)
{
ppu_loader.trace("Registered static module: %s", module->name);
}
for (auto& pair : ppu_module_manager::get())
{
const auto module = pair.second;
auto& linkage = link->modules[module->name];
for (auto& function : module->functions)
{
ppu_loader.trace("** 0x%08X: %s", function.first, function.second.name);
if (is_first)
{
g_ppu_function_names[function.second.index] = fmt::format("%s.%s", module->name, function.second.name);
}
if ((function.second.flags & MFF_HIDDEN) == 0)
{
auto& flink = linkage.functions[function.first];
flink.static_func = &function.second;
flink.export_addr = ppu_function_manager::addr + 8 * function.second.index;
function.second.export_addr = &flink.export_addr;
}
}
for (auto& variable : module->variables)
{
ppu_loader.trace("** &0x%08X: %s (size=0x%x, align=0x%x)", variable.first, variable.second.name, variable.second.size, variable.second.align);
// Allocate HLE variable
if (variable.second.size >= 4096 || variable.second.align >= 4096)
{
variable.second.addr = vm::alloc(variable.second.size, vm::main, std::max<u32>(variable.second.align, 0x10000));
}
else
{
const u32 next = ::align(alloc_addr, variable.second.align);
const u32 end = next + variable.second.size;
if (!next || (end >> 12 != alloc_addr >> 12))
{
alloc_addr = vm::alloc(4096, vm::main);
}
else
{
alloc_addr = next;
}
variable.second.addr = alloc_addr;
alloc_addr += variable.second.size;
}
if (variable.second.var)
{
variable.second.var->set(variable.second.addr);
}
ppu_loader.trace("Allocated HLE variable %s.%s at 0x%x", module->name, variable.second.name, variable.second.var->addr());
// Initialize HLE variable
if (variable.second.init)
{
variable.second.init();
}
if ((variable.second.flags & MFF_HIDDEN) == 0)
{
auto& vlink = linkage.variables[variable.first];
vlink.static_var = &variable.second;
vlink.export_addr = variable.second.addr;
variable.second.export_addr = &vlink.export_addr;
}
}
}
}
// Resolve relocations for variable/function linkage.
static void ppu_patch_refs(std::vector<ppu_reloc>* out_relocs, u32 fref, u32 faddr)
{
struct ref_t
{
be_t<u32> type;
be_t<u32> addr;
be_t<u32> addend; // Note: Treating it as addend seems to be correct for now, but still unknown if theres more in this variable
};
for (auto ref = vm::ptr<ref_t>::make(fref); ref->type; ref++)
{
if (ref->addend) ppu_loader.warning("**** REF(%u): Addend value(0x%x, 0x%x)", ref->type, ref->addr, ref->addend);
const u32 raddr = ref->addr;
const u32 rtype = ref->type;
const u32 rdata = faddr + ref->addend;
if (out_relocs)
{
// Register relocation with unpredictable target (data=0)
ppu_reloc _rel;
_rel.addr = raddr;
_rel.type = rtype;
_rel.data = 0;
out_relocs->emplace_back(_rel);
}
// OPs must be similar to relocations
switch (rtype)
{
case 1:
{
const u32 value = vm::_ref<u32>(ref->addr) = rdata;
ppu_loader.trace("**** REF(1): 0x%x <- 0x%x", ref->addr, value);
break;
}
case 4:
{
const u16 value = vm::_ref<u16>(ref->addr) = static_cast<u16>(rdata);
ppu_loader.trace("**** REF(4): 0x%x <- 0x%04x (0x%llx)", ref->addr, value, faddr);
break;
}
case 6:
{
const u16 value = vm::_ref<u16>(ref->addr) = static_cast<u16>(rdata >> 16) + (rdata & 0x8000 ? 1 : 0);
ppu_loader.trace("**** REF(6): 0x%x <- 0x%04x (0x%llx)", ref->addr, value, faddr);
break;
}
case 57:
{
const u16 value = vm::_ref<ppu_bf_t<be_t<u16>, 0, 14>>(ref->addr) = static_cast<u16>(rdata) >> 2;
ppu_loader.trace("**** REF(57): 0x%x <- 0x%04x (0x%llx)", ref->addr, value, faddr);
break;
}
default: ppu_loader.error("**** REF(%u): Unknown/Illegal type (0x%x, 0x%x)", rtype, raddr, ref->addend);
}
}
}
// Export or import module struct
struct ppu_prx_module_info
{
u8 size;
u8 unk0;
be_t<u16> version;
be_t<u16> attributes;
be_t<u16> num_func;
be_t<u16> num_var;
be_t<u16> num_tlsvar;
u8 info_hash;
u8 info_tlshash;
u8 unk1[2];
vm::bcptr<char> name;
vm::bcptr<u32> nids; // Imported FNIDs, Exported NIDs
vm::bptr<u32> addrs;
vm::bcptr<u32> vnids; // Imported VNIDs
vm::bcptr<u32> vstubs;
be_t<u32> unk4;
be_t<u32> unk5;
};
// Load and register exports; return special exports found (nameless module)
static auto ppu_load_exports(ppu_linkage_info* link, u32 exports_start, u32 exports_end)
{
std::unordered_map<u32, u32> result;
for (u32 addr = exports_start; addr < exports_end;)
{
const auto& lib = vm::_ref<const ppu_prx_module_info>(addr);
if (!lib.name)
{
// Set special exports
for (u32 i = 0, end = lib.num_func + lib.num_var; i < end; i++)
{
const u32 nid = lib.nids[i];
const u32 addr = lib.addrs[i];
if (i < lib.num_func)
{
ppu_loader.notice("** Special: [%s] at 0x%x", ppu_get_function_name({}, nid), addr);
}
else
{
ppu_loader.notice("** Special: &[%s] at 0x%x", ppu_get_variable_name({}, nid), addr);
}
result.emplace(nid, addr);
}
addr += lib.size ? lib.size : sizeof(ppu_prx_module_info);
continue;
}
const std::string module_name(lib.name.get_ptr());
ppu_loader.notice("** Exported module '%s' (0x%x, 0x%x, 0x%x, 0x%x)", module_name, lib.vnids, lib.vstubs, lib.unk4, lib.unk5);
if (lib.num_tlsvar)
{
ppu_loader.fatal("Unexpected num_tlsvar (%u)!", lib.num_tlsvar);
}
// Static module
const auto _sm = ppu_module_manager::get_module(module_name);
// Module linkage
auto& mlink = link->modules[module_name];
const auto fnids = +lib.nids;
const auto faddrs = +lib.addrs;
// Get functions
for (u32 i = 0, end = lib.num_func; i < end; i++)
{
const u32 fnid = fnids[i];
const u32 faddr = faddrs[i];
ppu_loader.notice("**** %s export: [%s] at 0x%x", module_name, ppu_get_function_name(module_name, fnid), faddr);
// Function linkage info
auto& flink = mlink.functions[fnid];
if (flink.static_func && flink.export_addr == ppu_function_manager::addr + 8 * flink.static_func->index)
{
flink.export_addr = 0;
}
if (flink.export_addr)
{
ppu_loader.error("Already linked function '%s' in module '%s'", ppu_get_function_name(module_name, fnid), module_name);
}
//else
{
// Static function
const auto _sf = _sm && _sm->functions.count(fnid) ? &_sm->functions.at(fnid) : nullptr;
if (_sf && (_sf->flags & MFF_FORCED_HLE))
{
// Inject a branch to the HLE implementation
const u32 _entry = vm::read32(faddr);
const u32 target = ppu_function_manager::addr + 8 * _sf->index;
if ((target <= _entry && _entry - target <= 0x2000000) || (target > _entry && target - _entry < 0x2000000))
{
// Use relative branch
vm::write32(_entry, ppu_instructions::B(target - _entry));
}
else if (target < 0x2000000)
{
// Use absolute branch if possible
vm::write32(_entry, ppu_instructions::B(target, true));
}
else
{
ppu_loader.fatal("Failed to patch function at 0x%x (0x%x)", _entry, target);
}
}
else
{
// Set exported function
flink.export_addr = faddr;
// Fix imports
for (const u32 addr : flink.imports)
{
vm::write32(addr, faddr);
//ppu_loader.warning("Exported function '%s' in module '%s'", ppu_get_function_name(module_name, fnid), module_name);
}
for (const u32 fref : flink.frefss)
{
ppu_patch_refs(nullptr, fref, faddr);
}
}
}
}
const auto vnids = lib.nids + lib.num_func;
const auto vaddrs = lib.addrs + lib.num_func;
// Get variables
for (u32 i = 0, end = lib.num_var; i < end; i++)
{
const u32 vnid = vnids[i];
const u32 vaddr = vaddrs[i];
ppu_loader.notice("**** %s export: &[%s] at 0x%x", module_name, ppu_get_variable_name(module_name, vnid), vaddr);
// Variable linkage info
auto& vlink = mlink.variables[vnid];
if (vlink.static_var && vlink.export_addr == vlink.static_var->addr)
{
vlink.export_addr = 0;
}
if (vlink.export_addr)
{
ppu_loader.error("Already linked variable '%s' in module '%s'", ppu_get_variable_name(module_name, vnid), module_name);
}
//else
{
// Set exported variable
vlink.export_addr = vaddr;
// Fix imports
for (const auto vref : vlink.imports)
{
ppu_patch_refs(nullptr, vref, vaddr);
//ppu_loader.warning("Exported variable '%s' in module '%s'", ppu_get_variable_name(module_name, vnid), module_name);
}
}
}
addr += lib.size ? lib.size : sizeof(ppu_prx_module_info);
}
return result;
}
static auto ppu_load_imports(std::vector<ppu_reloc>& relocs, ppu_linkage_info* link, u32 imports_start, u32 imports_end)
{
std::unordered_map<u32, void*> result;
for (u32 addr = imports_start; addr < imports_end;)
{
const auto& lib = vm::_ref<const ppu_prx_module_info>(addr);
const std::string module_name(lib.name.get_ptr());
ppu_loader.notice("** Imported module '%s' (ver=0x%x, attr=0x%x, 0x%x, 0x%x) [0x%x]", module_name, lib.version, lib.attributes, lib.unk4, lib.unk5, addr);
if (lib.num_tlsvar)
{
ppu_loader.fatal("Unexpected num_tlsvar (%u)!", lib.num_tlsvar);
}
// Static module
const auto _sm = ppu_module_manager::get_module(module_name);
// Module linkage
auto& mlink = link->modules[module_name];
const auto fnids = +lib.nids;
const auto faddrs = +lib.addrs;
for (u32 i = 0, end = lib.num_func; i < end; i++)
{
const u32 fnid = fnids[i];
const u32 fstub = faddrs[i];
const u32 faddr = (faddrs + i).addr();
ppu_loader.notice("**** %s import: [%s] -> 0x%x", module_name, ppu_get_function_name(module_name, fnid), fstub);
// Function linkage info
auto& flink = link->modules[module_name].functions[fnid];
// Add new import
result.emplace(faddr, &flink);
flink.imports.emplace(faddr);
mlink.imported = true;
// Link address (special HLE function by default)
const u32 link_addr = flink.export_addr ? flink.export_addr : ppu_function_manager::addr;
// Write import table
vm::write32(faddr, link_addr);
// Patch refs if necessary (0x2000 seems to be correct flag indicating the presence of additional info)
if (const u32 frefs = (lib.attributes & 0x2000) ? +fnids[i + lib.num_func] : 0)
{
result.emplace(frefs, &flink);
flink.frefss.emplace(frefs);
ppu_patch_refs(&relocs, frefs, link_addr);
}
//ppu_loader.warning("Imported function '%s' in module '%s' (0x%x)", ppu_get_function_name(module_name, fnid), module_name, faddr);
}
const auto vnids = +lib.vnids;
const auto vstubs = +lib.vstubs;
for (u32 i = 0, end = lib.num_var; i < end; i++)
{
const u32 vnid = vnids[i];
const u32 vref = vstubs[i];
ppu_loader.notice("**** %s import: &[%s] (ref=*0x%x)", module_name, ppu_get_variable_name(module_name, vnid), vref);
// Variable linkage info
auto& vlink = link->modules[module_name].variables[vnid];
// Add new import
result.emplace(vref, &vlink);
vlink.imports.emplace(vref);
mlink.imported = true;
// Link if available
ppu_patch_refs(&relocs, vref, vlink.export_addr);
//ppu_loader.warning("Imported variable '%s' in module '%s' (0x%x)", ppu_get_variable_name(module_name, vnid), module_name, vlink.first);
}
addr += lib.size ? lib.size : sizeof(ppu_prx_module_info);
}
return result;
}
std::shared_ptr<lv2_prx> ppu_load_prx(const ppu_prx_object& elf, const std::string& path)
{
// Create new PRX object
const auto prx = idm::make_ptr<lv2_obj, lv2_prx>();
// Access linkage information object
const auto link = g_fxo->get<ppu_linkage_info>();
// Initialize HLE modules
ppu_initialize_modules(link);
// Library hash
sha1_context sha;
sha1_starts(&sha);
for (const auto& prog : elf.progs)
{
ppu_loader.notice("** Segment: p_type=0x%x, p_vaddr=0x%llx, p_filesz=0x%llx, p_memsz=0x%llx, flags=0x%x", prog.p_type, prog.p_vaddr, prog.p_filesz, prog.p_memsz, prog.p_flags);
// Hash big-endian values
sha1_update(&sha, reinterpret_cast<const uchar*>(&prog.p_type), sizeof(prog.p_type));
sha1_update(&sha, reinterpret_cast<const uchar*>(&prog.p_flags), sizeof(prog.p_flags));
switch (const u32 p_type = prog.p_type)
{
case 0x1: // LOAD
{
if (prog.p_memsz)
{
const u32 mem_size = ::narrow<u32>(prog.p_memsz, "p_memsz" HERE);
const u32 file_size = ::narrow<u32>(prog.p_filesz, "p_filesz" HERE);
const u32 init_addr = ::narrow<u32>(prog.p_vaddr, "p_vaddr" HERE);
// Alloc segment memory
const u32 addr = vm::alloc(mem_size, vm::main);
if (!addr)
{
fmt::throw_exception("vm::alloc() failed (size=0x%x)", mem_size);
}
// Copy segment data
std::memcpy(vm::base(addr), prog.bin.data(), file_size);
ppu_loader.warning("**** Loaded to 0x%x (size=0x%x)", addr, mem_size);
// Hash segment
sha1_update(&sha, reinterpret_cast<const uchar*>(&prog.p_vaddr), sizeof(prog.p_vaddr));
sha1_update(&sha, reinterpret_cast<const uchar*>(&prog.p_memsz), sizeof(prog.p_memsz));
sha1_update(&sha, prog.bin.data(), prog.bin.size());
// Initialize executable code if necessary
if (prog.p_flags & 0x1)
{
ppu_register_range(addr, mem_size);
}
ppu_segment _seg;
_seg.addr = addr;
_seg.size = mem_size;
_seg.filesz = file_size;
_seg.type = p_type;
_seg.flags = prog.p_flags;
prx->segs.emplace_back(_seg);
}
break;
}
case 0x700000a4: break; // Relocations
default: ppu_loader.error("Unknown segment type! 0x%08x", p_type);
}
}
for (const auto& s : elf.shdrs)
{
ppu_loader.notice("** Section: sh_type=0x%x, addr=0x%llx, size=0x%llx, flags=0x%x", s.sh_type, s.sh_addr, s.sh_size, s.sh_flags);
const u32 addr = vm::cast(s.sh_addr);
const u32 size = vm::cast(s.sh_size);
if (s.sh_type == 1u && addr && size) // TODO: some sections with addr=0 are valid
{
for (std::size_t i = 0; i < prx->segs.size(); i++)
{
const u32 saddr = static_cast<u32>(elf.progs[i].p_vaddr);
if (addr >= saddr && addr < saddr + elf.progs[i].p_memsz)
{
// "Relocate" section
ppu_segment _sec;
_sec.addr = addr - saddr + prx->segs[i].addr;
_sec.size = size;
_sec.type = s.sh_type;
_sec.flags = static_cast<u32>(s.sh_flags & 7);
_sec.filesz = 0;
prx->secs.emplace_back(_sec);
break;
}
}
}
}
// Do relocations
for (auto& prog : elf.progs)
{
switch (const u32 p_type = prog.p_type)
{
case 0x700000a4:
{
// Relocation information of the SCE_PPURELA segment
struct ppu_prx_relocation_info
{
be_t<u64> offset;
be_t<u16> unk0;
u8 index_value;
u8 index_addr;
be_t<u32> type;
vm::bptr<void, u64> ptr;
};
for (uint i = 0; i < prog.p_filesz; i += sizeof(ppu_prx_relocation_info))
{
const auto& rel = reinterpret_cast<const ppu_prx_relocation_info&>(prog.bin[i]);
ppu_reloc _rel;
const u32 raddr = _rel.addr = vm::cast(prx->segs.at(rel.index_addr).addr + rel.offset, HERE);
const u32 rtype = _rel.type = rel.type;
const u64 rdata = _rel.data = rel.index_value == 0xFF ? rel.ptr.addr().value() : prx->segs.at(rel.index_value).addr + rel.ptr.addr();
prx->relocs.emplace_back(_rel);
switch (rtype)
{
case 1: // R_PPC64_ADDR32
{
const u32 value = vm::_ref<u32>(raddr) = static_cast<u32>(rdata);
ppu_loader.trace("**** RELOCATION(1): 0x%x <- 0x%08x (0x%llx)", raddr, value, rdata);
break;
}
case 4: //R_PPC64_ADDR16_LO
{
const u16 value = vm::_ref<u16>(raddr) = static_cast<u16>(rdata);
ppu_loader.trace("**** RELOCATION(4): 0x%x <- 0x%04x (0x%llx)", raddr, value, rdata);
break;
}
case 5: //R_PPC64_ADDR16_HI
{
const u16 value = vm::_ref<u16>(raddr) = static_cast<u16>(rdata >> 16);
ppu_loader.trace("**** RELOCATION(5): 0x%x <- 0x%04x (0x%llx)", raddr, value, rdata);
break;
}
case 6: //R_PPC64_ADDR16_HA
{
const u16 value = vm::_ref<u16>(raddr) = static_cast<u16>(rdata >> 16) + (rdata & 0x8000 ? 1 : 0);
ppu_loader.trace("**** RELOCATION(6): 0x%x <- 0x%04x (0x%llx)", raddr, value, rdata);
break;
}
case 10: //R_PPC64_REL24
{
const u32 value = vm::_ref<ppu_bf_t<be_t<u32>, 6, 24>>(raddr) = static_cast<u32>(rdata - raddr) >> 2;
ppu_loader.warning("**** RELOCATION(10): 0x%x <- 0x%06x (0x%llx)", raddr, value, rdata);
break;
}
case 11: //R_PPC64_REL14
{
const u32 value = vm::_ref<ppu_bf_t<be_t<u32>, 16, 14>>(raddr) = static_cast<u32>(rdata - raddr) >> 2;
ppu_loader.warning("**** RELOCATION(11): 0x%x <- 0x%06x (0x%llx)", raddr, value, rdata);
break;
}
case 38: //R_PPC64_ADDR64
{
const u64 value = vm::_ref<u64>(raddr) = rdata;
ppu_loader.trace("**** RELOCATION(38): 0x%x <- 0x%016llx (0x%llx)", raddr, value, rdata);
break;
}
case 44: //R_PPC64_REL64
{
const u64 value = vm::_ref<u64>(raddr) = rdata - raddr;
ppu_loader.trace("**** RELOCATION(44): 0x%x <- 0x%016llx (0x%llx)", raddr, value, rdata);
break;
}
case 57: //R_PPC64_ADDR16_LO_DS
{
const u16 value = vm::_ref<ppu_bf_t<be_t<u16>, 0, 14>>(raddr) = static_cast<u16>(rdata) >> 2;
ppu_loader.trace("**** RELOCATION(57): 0x%x <- 0x%04x (0x%llx)", raddr, value, rdata);
break;
}
default: ppu_loader.error("**** RELOCATION(%u): Illegal/Unknown type! (addr=0x%x; 0x%llx)", rtype, raddr, rdata);
}
if (rdata == 0)
{
ppu_loader.todo("**** RELOCATION(%u): 0x%x <- (zero-based value)", rtype, raddr);
}
}
break;
}
}
}
if (!elf.progs.empty() && elf.progs[0].p_paddr)
{
struct ppu_prx_library_info
{
be_t<u16> attributes;
u8 version[2];
char name[28];
be_t<u32> toc;
be_t<u32> exports_start;
be_t<u32> exports_end;
be_t<u32> imports_start;
be_t<u32> imports_end;
};
// Access library information (TODO)
const vm::cptr<ppu_prx_library_info> lib_info = vm::cast(prx->segs[0].addr + elf.progs[0].p_paddr - elf.progs[0].p_offset, HERE);
const std::string lib_name = lib_info->name;
strcpy_trunc(prx->module_info_name, lib_name);
prx->module_info_version[0] = lib_info->version[0];
prx->module_info_version[1] = lib_info->version[1];
prx->module_info_attributes = lib_info->attributes;
ppu_loader.warning("Library %s (rtoc=0x%x):", lib_name, lib_info->toc);
prx->specials = ppu_load_exports(link, lib_info->exports_start, lib_info->exports_end);
prx->imports = ppu_load_imports(prx->relocs, link, lib_info->imports_start, lib_info->imports_end);
std::stable_sort(prx->relocs.begin(), prx->relocs.end());
prx->analyse(lib_info->toc, 0);
}
else
{
ppu_loader.fatal("Library %s: PRX library info not found");
}
prx->start.set(prx->specials[0xbc9a0086]);
prx->stop.set(prx->specials[0xab779874]);
prx->exit.set(prx->specials[0x3ab9a95e]);
prx->prologue.set(prx->specials[0x0d10fd3f]);
prx->epilogue.set(prx->specials[0x330f7005]);
prx->name = path.substr(path.find_last_of('/') + 1);
prx->path = path;
sha1_finish(&sha, prx->sha1);
// Format patch name
std::string hash("PRX-0000000000000000000000000000000000000000");
for (u32 i = 0; i < 20; i++)
{
constexpr auto pal = "0123456789abcdef";
hash[4 + i * 2] = pal[prx->sha1[i] >> 4];
hash[5 + i * 2] = pal[prx->sha1[i] & 15];
}
// Apply the patch
auto applied = g_fxo->get<patch_engine>()->apply(hash, vm::g_base_addr);
if (!Emu.GetTitleID().empty())
{
// Alternative patch
applied += g_fxo->get<patch_engine>()->apply(Emu.GetTitleID() + '-' + hash, vm::g_base_addr);
}
ppu_loader.notice("PRX library hash: %s (<- %u)", hash, applied);
if (Emu.IsReady() && g_fxo->get<ppu_module>()->segs.empty())
{
// Special loading mode
ppu_thread_params p{
.stack_addr = vm::cast(vm::alloc(0x100000, vm::stack, 4096)),