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tests/A64: Test memory writes

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This commit is contained in:
MerryMage 2018-01-25 23:56:57 +00:00
parent 94383fd934
commit a8ed248a13
4 changed files with 32 additions and 5 deletions
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5
tests/A64/fuzz_with_unicorn.cpp
View file

@ -52,7 +52,7 @@ restart:
if (!should_continue && !is_last_inst)
goto restart;
for (const auto& ir_inst : block)
if (ir_inst.IsMemoryWrite() || ir_inst.GetOpcode() == IR::Opcode::A64ExceptionRaised || ir_inst.GetOpcode() == IR::Opcode::A64CallSupervisor)
if (ir_inst.GetOpcode() == IR::Opcode::A64ExceptionRaised || ir_inst.GetOpcode() == IR::Opcode::A64CallSupervisor)
goto restart;
return instruction;
@ -87,11 +87,12 @@ static void RunTestInstance(const std::array<u64, 31>& regs, const std::array<Ve
uni_env.ticks_left = instructions.size();
uni.Run();
REQUIRE(uni.GetPC() == jit.GetPC());
REQUIRE(uni.GetRegisters() == jit.GetRegisters());
REQUIRE(uni.GetVectors() == jit.GetVectors());
REQUIRE(uni.GetPC() == jit.GetPC());
REQUIRE(uni.GetSP() == jit.GetSP());
REQUIRE((uni.GetPstate() & 0xF0000000) == (jit.GetPstate() & 0xF0000000));
REQUIRE(uni_env.modified_memory == jit_env.modified_memory);
}
TEST_CASE("A64: Single random instruction", "[a64]") {

2
tests/A64/testenv.h
View file

@ -74,7 +74,7 @@ public:
}
void MemoryWrite128(u64 vaddr, Vector value) override {
MemoryWrite64(vaddr, value[0]);
MemoryWrite64(vaddr + 4, value[1]);
MemoryWrite64(vaddr + 8, value[1]);
}
void InterpreterFallback(u64 pc, size_t num_instructions) override { ASSERT_MSG(false, "InterpreterFallback(%" PRIx64 ", %zu)", pc, num_instructions); }

28
tests/A64/unicorn_emu/unicorn.cpp
View file

@ -24,6 +24,7 @@ Unicorn::Unicorn(TestEnv& testenv) : testenv(testenv) {
CHECKED(uc_reg_write(uc, UC_ARM64_REG_CPACR_EL1, &fpv));
CHECKED(uc_hook_add(uc, &intr_hook, UC_HOOK_INTR, (void*)InterruptHook, this, BEGIN_ADDRESS, END_ADDRESS));
CHECKED(uc_hook_add(uc, &mem_invalid_hook, UC_HOOK_MEM_INVALID, (void*)UnmappedMemoryHook, this, BEGIN_ADDRESS, END_ADDRESS));
CHECKED(uc_hook_add(uc, &mem_write_prot_hook, UC_HOOK_MEM_WRITE, (void*)MemoryWriteHook, this, BEGIN_ADDRESS, END_ADDRESS));
}
Unicorn::~Unicorn() {
@ -173,10 +174,10 @@ bool Unicorn::UnmappedMemoryHook(uc_engine* uc, uc_mem_type /*type*/, u64 start_
const auto generate_page = [&](u64 base_address) {
// printf("generate_page(%" PRIx64 ")\n", base_address);
const u32 permissions = [&]{
const u32 permissions = [&]() -> u32 {
if (base_address < this_->testenv.code_mem.size() * 4)
return UC_PROT_READ | UC_PROT_EXEC;
return UC_PROT_READ | UC_PROT_WRITE;
return UC_PROT_READ;
}();
auto page = std::make_unique<Page>();
@ -209,3 +210,26 @@ bool Unicorn::UnmappedMemoryHook(uc_engine* uc, uc_mem_type /*type*/, u64 start_
return true;
}
bool Unicorn::MemoryWriteHook(uc_engine* /*uc*/, uc_mem_type /*type*/, u64 start_address, int size, u64 value, void* user_data) {
Unicorn* this_ = reinterpret_cast<Unicorn*>(user_data);
switch (size) {
case 1:
this_->testenv.MemoryWrite8(start_address, static_cast<u8>(value));
break;
case 2:
this_->testenv.MemoryWrite16(start_address, static_cast<u16>(value));
break;
case 4:
this_->testenv.MemoryWrite32(start_address, static_cast<u32>(value));
break;
case 8:
this_->testenv.MemoryWrite64(start_address, value);
break;
default:
UNREACHABLE();
}
return true;
}

2
tests/A64/unicorn_emu/unicorn.h
View file

@ -49,6 +49,7 @@ public:
private:
static void InterruptHook(uc_engine* uc, u32 interrupt, void* user_data);
static bool UnmappedMemoryHook(uc_engine* uc, uc_mem_type type, u64 addr, int size, u64 value, void* user_data);
static bool MemoryWriteHook(uc_engine* uc, uc_mem_type type, u64 addr, int size, u64 value, void* user_data);
struct Page {
u64 address;
@ -59,6 +60,7 @@ private:
uc_engine* uc{};
uc_hook intr_hook{};
uc_hook mem_invalid_hook{};
uc_hook mem_write_prot_hook{};
std::vector<std::unique_ptr<Page>> pages;
};