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SPU Analyser: Detect invalid relative branches

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Eladash 2024-03-07 15:16:22 +02:00 • committed by Elad.Ash
parent 8e15de5c83
commit d699db2d19
3 changed files with 56 additions and 7 deletions
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8
rpcs3/Emu/Cell/SPUCommonRecompiler.cpp
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@ -1024,7 +1024,7 @@ void spu_cache::initialize(bool build_existing_cache)
}
}
if (new_entry != umax && !spu_thread::is_exec_code(new_entry, { reinterpret_cast<const u8*>(ls.data()), SPU_LS_SIZE }))
if (new_entry != umax && !spu_thread::is_exec_code(new_entry, { reinterpret_cast<const u8*>(ls.data()), SPU_LS_SIZE }, 0, true))
{
new_entry = umax;
}
@ -1033,7 +1033,7 @@ void spu_cache::initialize(bool build_existing_cache)
{
new_entry = start_new;
while (new_entry < next_func && (ls[start_new / 4] < 0x3fffc || !spu_thread::is_exec_code(new_entry, { reinterpret_cast<const u8*>(ls.data()), SPU_LS_SIZE })))
while (new_entry < next_func && (ls[start_new / 4] < 0x3fffc || !spu_thread::is_exec_code(new_entry, { reinterpret_cast<const u8*>(ls.data()), SPU_LS_SIZE }, 0, true)))
{
new_entry += 4;
}
@ -2281,13 +2281,13 @@ std::vector<u32> spu_thread::discover_functions(u32 base_addr, std::span<const u
calls.erase(std::remove_if(calls.begin(), calls.end(), [&](u32 caller)
{
// Check the validity of both the callee code and the following caller code
return !is_exec_code(caller, ls, base_addr) || !is_exec_code(caller + 4, ls, base_addr);
return !is_exec_code(caller, ls, base_addr, true) || !is_exec_code(caller + 4, ls, base_addr, true);
}), calls.end());
branches.erase(std::remove_if(branches.begin(), branches.end(), [&](u32 caller)
{
// Check the validity of the callee code
return !is_exec_code(caller, ls, base_addr);
return !is_exec_code(caller, ls, base_addr, true);
}), branches.end());
std::vector<u32> addrs;