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Size of injected code decreased

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This commit is contained in:
Nekotekina 2015-02-24 19:38:10 +03:00
parent a8688bff85
commit 991fd015de
4 changed files with 18 additions and 16 deletions
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12
rpcs3/Emu/SysCalls/Modules.cpp
View File

@ -88,7 +88,7 @@ void execute_ppu_func_by_index(PPUThread& CPU, u32 index)
auto old_last_syscall = CPU.m_last_syscall;
CPU.m_last_syscall = func->id;
if (!(index & EIF_DONT_SAVE_RTOC))
if (index & EIF_SAVE_RTOC)
{
// save RTOC if necessary
vm::write64(vm::cast(CPU.GPR[1] + 0x28), CPU.GPR[2]);
@ -109,6 +109,12 @@ void execute_ppu_func_by_index(PPUThread& CPU, u32 index)
CPU.GPR[3] = 0;
}
if (index & EIF_PERFORM_BLR)
{
// return if necessary
CPU.SetBranch(vm::cast(CPU.LR & ~3), true);
}
CPU.m_last_syscall = old_last_syscall;
}
else
@ -219,9 +225,7 @@ void hook_ppu_funcs(u32* base, u32 size)
{
LOG_NOTICE(LOADER, "Function '%s' hooked (addr=0x%x)", g_ppu_func_subs[j].name, vm::get_addr(base + i * 4));
g_ppu_func_subs[j].found++;
base[i + 0] = re32(0x04000000 | g_ppu_func_subs[j].index | EIF_DONT_SAVE_RTOC); // hack
base[i + 1] = se32(0x4e800020); // blr
i += 1; // skip modified code
base[i] = re32(0x04000000 | g_ppu_func_subs[j].index | EIF_PERFORM_BLR); // hack
}
}
}

5
rpcs3/Emu/SysCalls/Modules.h
View File

@ -15,9 +15,10 @@ enum : u32
// flags passed with index
enum : u32
{
EIF_DONT_SAVE_RTOC = (1 << 25), // don't save RTOC before calling
EIF_SAVE_RTOC = (1 << 25), // save RTOC in [SP+0x28] before calling HLE/LLE function
EIF_PERFORM_BLR = (1 << 24), // do BLR after calling HLE/LLE function
EIF_FLAGS = 0x2000000, // all flags
EIF_FLAGS = 0x3000000, // all flags
};
struct ModuleFunc

2
rpcs3/Loader/ELF32.cpp
View File

@ -249,7 +249,7 @@ namespace loader
index = add_psv_func(psv_func(nid, 0, nullptr, "UNKNOWN", nullptr));
}
vm::psv::write32(addr + 0, 0xe0700090 | (index & 0xfff0) << 4 | (index & 0xf)); // HACK instruction (ARM)
vm::psv::write32(addr, 0xe0700090 | (index & 0xfff0) << 4 | (index & 0xf)); // HACK instruction (ARM)
code_end = std::min<u32>(addr, code_end);
}

15
rpcs3/Loader/ELF64.cpp
View File

@ -417,14 +417,13 @@ namespace loader
{
u32 i_addr = 0;
if (!vm::check_addr(addr, 8) || !vm::check_addr(i_addr = vm::read32(addr), 8))
if (!vm::check_addr(addr, 8) || !vm::check_addr(i_addr = vm::read32(addr), 4))
{
LOG_ERROR(LOADER, "Failed to inject code for function '%s' (opd=0x%x, 0x%x)", SysCalls::GetHLEFuncName(nid), addr, i_addr);
LOG_ERROR(LOADER, "Failed to inject code for exported function '%s' (opd=0x%x, 0x%x)", SysCalls::GetHLEFuncName(nid), addr, i_addr);
}
else
{
vm::write32(i_addr + 0, HACK(index | EIF_DONT_SAVE_RTOC));
vm::write32(i_addr + 4, BLR());
vm::write32(i_addr, HACK(index | EIF_PERFORM_BLR));
}
}
}
@ -450,14 +449,13 @@ namespace loader
LOG_NOTICE(LOADER, "Imported function '%s' (0x%x)", SysCalls::GetHLEFuncName(nid), addr);
}
if (!vm::check_addr(addr, 8))
if (!vm::check_addr(addr, 4))
{
LOG_ERROR(LOADER, "Failed to inject code for function '%s' (0x%x)", SysCalls::GetHLEFuncName(nid), addr);
}
else
{
vm::write32(addr + 0, HACK(index));
vm::write32(addr + 4, BLR());
vm::write32(addr, HACK(index | EIF_SAVE_RTOC | EIF_PERFORM_BLR));
}
}
}
@ -671,8 +669,7 @@ namespace loader
LOG_NOTICE(LOADER, "Imported %sfunction '%s' in '%s' module (0x%x)", func->lle_func ? "LLE " : "", SysCalls::GetHLEFuncName(nid), module_name, addr);
}
vm::write32(addr + 0, HACK(index));
vm::write32(addr + 4, BLR());
vm::write32(addr, HACK(index | EIF_SAVE_RTOC | EIF_PERFORM_BLR));
//if (!func || !func->lle_func)
//{