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fix(macos): Add support for macos and ARM64 patching #62

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merged 1 commit into from
Sep 17, 2024
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fix(macos): Add support for macos and ARM64 patching #62

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12 changes: 11 additions & 1 deletion librecomp/src/mods.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -116,7 +116,11 @@ void protect(void* target_func, uint64_t old_flags) {

class recomp::mods::DynamicLibrary {
public:
#if defined(__APPLE__)
static constexpr std::string_view PlatformExtension = ".dylib";
#else
static constexpr std::string_view PlatformExtension = ".so";
#endif
DynamicLibrary() = default;
DynamicLibrary(const std::filesystem::path& path) {
native_handle = dlopen(path.c_str(), RTLD_NOW | RTLD_LOCAL);
Expand Down Expand Up @@ -399,7 +403,13 @@ void patch_func(recomp_func_t* target_func, recomp::mods::GenericFunction replac
}
}, replacement_func);
#elif defined(IS_ARM64)
ultramodern::error_handling::message_box("Mod loading not currently implemented on ARM CPUs!\n");
static const uint8_t ldr_x2_8__br_x2[] = {0x42, 0x00, 0x00, 0x58, 0x40, 0x00, 0x1F, 0xD6};
std::visit(overloaded {
[&write_bytes](recomp_func_t* native_func) {
write_bytes(ldr_x2_8__br_x2, sizeof(ldr_x2_8__br_x2));
write_bytes(&native_func, sizeof(&native_func));
}
}, replacement_func);
#else
# error "Unsupported architecture"
#endif
Expand Down