Archive/rpcs3
0
0
Fork 0
mirror of https://github.com/RPCS3/rpcs3.git synced 2025-04-28 13:28:01 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Make it work with LLVM

Browse source 
Allow multiple entries for a single code.
This commit is contained in:
Eladash 2022-12-09 20:06:50 +02:00 • committed by Ivan
parent f572e29a13
commit 7df093c94b
2 changed files with 95 additions and 40 deletions
Download patch file Download diff file Expand all files Collapse all files

21
Utilities/bin_patch.cpp
View file

@ -703,8 +703,6 @@ static usz apply_modification(std::basic_string<u32>& applied, const patch_engin
}
case patch_type::code_alloc:
{
relocate_instructions_at = 0;
const u32 out_branch = vm::try_get_addr(dst + (offset & -4)).first;
// Allow only if points to a PPU executable instruction
@ -715,6 +713,13 @@ static usz apply_modification(std::basic_string<u32>& applied, const patch_engin
const u32 alloc_size = utils::align(static_cast<u32>(p.value.long_value + 1) * 4, 0x10000);
// Check if should maybe reuse previous code cave allocation (0 size)
if (alloc_size - 4 != 0)
{
// Nope
relocate_instructions_at = 0;
}
// Always executable
u64 flags = vm::alloc_executable | vm::alloc_unwritable;
@ -738,7 +743,7 @@ static usz apply_modification(std::basic_string<u32>& applied, const patch_engin
// Range allowed for absolute branches to operate at
// It takes into account that we need to put a branch for return at the end of memory space
const u32 addr = p.alloc_addr = alloc_map->alloc(alloc_size, nullptr, 0x10000, flags);
const u32 addr = p.alloc_addr = (relocate_instructions_at ? relocate_instructions_at : alloc_map->alloc(alloc_size, nullptr, 0x10000, flags));
if (!addr)
{
@ -751,8 +756,12 @@ static usz apply_modification(std::basic_string<u32>& applied, const patch_engin
// NOP filled
std::fill_n(vm::get_super_ptr<u32>(addr), p.value.long_value, 0x60000000);
// Register code
ppu_register_range(addr, alloc_size);
// Check if already registered by previous code allocation
if (relocate_instructions_at != addr)
{
// Register code
ppu_register_range(addr, alloc_size);
}
resval = out_branch & -4;
@ -772,8 +781,6 @@ static usz apply_modification(std::basic_string<u32>& applied, const patch_engin
continue;
}
// Write address of the allocated memory to the code entry
*vm::get_super_ptr<u32>(resval) = addr;
relocate_instructions_at = addr;
break;
}