mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-10-29 12:15:39 +00:00
79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
#include "prx/libc/include/ApplicationHeap.hpp"
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#include "prx/libc/include/general/VabiMacros.hpp"
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <cstdlib>
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#include <cstring>
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extern "C" {
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void* APS5_VABI malloc_nid_postfix(std::size_t size);
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std::int64_t APS5_VABI PKFree_nid_postfix(void** memory);
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}
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namespace {
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void Require(bool value) { if (!value) std::abort(); }
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void* lastFreed = nullptr;
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int frees = 0;
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void* APS5_VABI Allocate(std::size_t size) { return std::malloc(size); }
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void APS5_VABI Free(void* pointer) {
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if (pointer != nullptr) {
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lastFreed = pointer;
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++frees;
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}
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std::free(pointer);
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}
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void* APS5_VABI Reallocate(void* pointer, std::size_t size) { return std::realloc(pointer, size); }
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void* APS5_VABI Calloc(std::size_t count, std::size_t size) { return std::calloc(count, size); }
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void* APS5_VABI Align(std::size_t, std::size_t size) { return std::malloc(size); }
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void* APS5_VABI Realign(void* pointer, std::size_t size, std::size_t) { return std::realloc(pointer, size); }
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int APS5_VABI PosixAlign(void** pointer, std::size_t, std::size_t size) {
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*pointer = std::malloc(size);
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return *pointer ? 0 : 12;
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}
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void InitializeHeap() {
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alignas(16) static std::array<std::byte, 0x40> process{};
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alignas(16) static std::array<std::byte, 0x38> libc{};
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alignas(16) static std::array<std::byte, 0x78> replacement{};
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const auto write = [](auto& data, std::size_t offset, auto value) {
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std::memcpy(data.data() + offset, &value, sizeof(value));
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};
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write(process, 0, std::uint64_t{0x40});
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write(process, 8, std::uint32_t{0x4942524f});
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write(process, 0x38, libc.data());
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write(libc, 0, std::uint64_t{0x38});
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write(libc, 0x30, replacement.data());
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write(replacement, 0, std::uint64_t{0x78});
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write(replacement, 8, std::uint64_t{2});
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write(replacement, 0x20, reinterpret_cast<void*>(&Allocate));
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write(replacement, 0x28, reinterpret_cast<void*>(&Free));
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write(replacement, 0x30, reinterpret_cast<void*>(&Calloc));
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write(replacement, 0x38, reinterpret_cast<void*>(&Reallocate));
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write(replacement, 0x40, reinterpret_cast<void*>(&Align));
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write(replacement, 0x48, reinterpret_cast<void*>(&Realign));
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write(replacement, 0x50, reinterpret_cast<void*>(&PosixAlign));
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ApplicationHeapInitialize_nid_no_patch(process.data());
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}
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}
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int main() {
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InitializeHeap();
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void* memory = malloc_nid_postfix(64);
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Require(memory != nullptr);
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void* const allocated = memory;
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Require(PKFree_nid_postfix(&memory) == 0);
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Require(memory == nullptr);
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Require(frees == 1 && lastFreed == allocated);
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Require(PKFree_nid_postfix(&memory) == 0);
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Require(memory == nullptr);
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Require(frees == 1);
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Require(PKFree_nid_postfix(nullptr) == 0);
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Require(frees == 1);
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return 0;
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}
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