219 lines
7.8 KiB
C++
219 lines
7.8 KiB
C++
/* This file is part of the dynarmic project.
|
|
* Copyright (c) 2016 MerryMage
|
|
* This software may be used and distributed according to the terms of the GNU
|
|
* General Public License version 2 or any later version.
|
|
*/
|
|
|
|
#include <cinttypes>
|
|
#include <cstring>
|
|
|
|
#include <catch.hpp>
|
|
|
|
#include "common/common_types.h"
|
|
#include "frontend/disassembler.h"
|
|
#include "interface/interface.h"
|
|
#include "rand_int.h"
|
|
#include "skyeye_interpreter/dyncom/arm_dyncom_interpreter.h"
|
|
#include "skyeye_interpreter/skyeye_common/armstate.h"
|
|
|
|
static std::array<u16, 3000> code_mem{};
|
|
|
|
static u32 MemoryRead32(u32 vaddr);
|
|
static void InterpreterFallback(u32 pc, Dynarmic::Jit* jit);
|
|
static Dynarmic::UserCallbacks GetUserCallbacks();
|
|
|
|
static u32 MemoryRead32(u32 vaddr) {
|
|
if (vaddr < code_mem.size() * sizeof(u16)) {
|
|
size_t index = vaddr / sizeof(u16);
|
|
return code_mem[index] | (code_mem[index+1] << 16);
|
|
}
|
|
return vaddr;
|
|
}
|
|
|
|
static void InterpreterFallback(u32 pc, Dynarmic::Jit* jit) {
|
|
ARMul_State interp_state{USER32MODE};
|
|
interp_state.user_callbacks = GetUserCallbacks();
|
|
interp_state.NumInstrsToExecute = 1;
|
|
|
|
interp_state.Reg = jit->Regs();
|
|
interp_state.Cpsr = jit->Cpsr();
|
|
interp_state.Reg[15] = pc;
|
|
|
|
InterpreterClearCache();
|
|
InterpreterMainLoop(&interp_state);
|
|
|
|
jit->Regs() = interp_state.Reg;
|
|
jit->Cpsr() = interp_state.Cpsr;
|
|
}
|
|
|
|
static void Fail() {
|
|
FAIL();
|
|
}
|
|
|
|
static Dynarmic::UserCallbacks GetUserCallbacks() {
|
|
Dynarmic::UserCallbacks user_callbacks{};
|
|
user_callbacks.MemoryRead32 = &MemoryRead32;
|
|
user_callbacks.InterpreterFallback = &InterpreterFallback;
|
|
user_callbacks.CallSVC = (bool (*)(u32)) &Fail;
|
|
user_callbacks.IsReadOnlyMemory = (bool (*)(u32)) &Fail;
|
|
user_callbacks.MemoryRead8 = (u8 (*)(u32)) &Fail;
|
|
user_callbacks.MemoryRead16 = (u16 (*)(u32)) &Fail;
|
|
user_callbacks.MemoryRead64 = (u64 (*)(u32)) &Fail;
|
|
user_callbacks.MemoryWrite8 = (void (*)(u32, u8)) &Fail;
|
|
user_callbacks.MemoryWrite16 = (void (*)(u32, u16)) &Fail;
|
|
user_callbacks.MemoryWrite32 = (void (*)(u32, u32)) &Fail;
|
|
user_callbacks.MemoryWrite64 = (void (*)(u32, u64)) &Fail;
|
|
return user_callbacks;
|
|
}
|
|
|
|
static std::pair<u16, u16> FromBitString16(const char* str) {
|
|
REQUIRE(strlen(str) == 16);
|
|
|
|
u16 bits = 0;
|
|
u16 mask = 0;
|
|
for (int i = 0; i < 16; i++) {
|
|
const u16 bit = 1 << (15 - i);
|
|
switch (str[i]) {
|
|
case '0':
|
|
mask |= bit;
|
|
break;
|
|
case '1':
|
|
bits |= bit;
|
|
mask |= bit;
|
|
break;
|
|
default:
|
|
// Do nothing
|
|
break;
|
|
}
|
|
}
|
|
return { bits, mask };
|
|
}
|
|
|
|
static bool DoesBehaviorMatch(const ARMul_State& interp, const Dynarmic::Jit& jit) {
|
|
const auto interp_regs = interp.Reg;
|
|
const auto jit_regs = jit.Regs();
|
|
|
|
return std::equal(interp_regs.begin(), interp_regs.end(), jit_regs.begin(), jit_regs.end())
|
|
&& interp.Cpsr == jit.Cpsr();
|
|
}
|
|
|
|
|
|
void FuzzJitThumb(const size_t instruction_count, const size_t instructions_to_execute_count, const size_t run_count, const std::function<u16()> instruction_generator) {
|
|
// Prepare memory
|
|
code_mem.fill(0xE7FE); // b +#0
|
|
|
|
// Prepare test subjects
|
|
ARMul_State interp{USER32MODE};
|
|
interp.user_callbacks = GetUserCallbacks();
|
|
Dynarmic::Jit jit{GetUserCallbacks()};
|
|
|
|
for (size_t run_number = 0; run_number < run_count; run_number++) {
|
|
interp.instruction_cache.clear();
|
|
InterpreterClearCache();
|
|
jit.ClearCache();
|
|
|
|
// Setup initial state
|
|
|
|
std::array<u32, 16> initial_regs;
|
|
std::generate_n(initial_regs.begin(), 15, []{ return RandInt<u32>(0, 0xFFFFFFFF); });
|
|
initial_regs[15] = 0;
|
|
|
|
interp.Cpsr = 0x000001F0;
|
|
interp.Reg = initial_regs;
|
|
jit.Cpsr() = 0x000001F0;
|
|
jit.Regs() = initial_regs;
|
|
|
|
std::generate_n(code_mem.begin(), instruction_count, instruction_generator);
|
|
|
|
// Run interpreter
|
|
interp.NumInstrsToExecute = instructions_to_execute_count;
|
|
InterpreterMainLoop(&interp);
|
|
|
|
// Run jit
|
|
jit.Run(instructions_to_execute_count);
|
|
|
|
// Compare
|
|
if (!DoesBehaviorMatch(interp, jit)) {
|
|
printf("Failed at execution number %zu\n", run_number);
|
|
|
|
printf("\nInstruction Listing: \n");
|
|
for (size_t i = 0; i < instruction_count; i++) {
|
|
printf("%s\n", Dynarmic::Arm::DisassembleThumb16(code_mem[i]).c_str());
|
|
}
|
|
|
|
printf("\nFinal Register Listing: \n");
|
|
for (int i = 0; i <= 15; i++) {
|
|
printf("%4i: %08x %08x %s\n", i, interp.Reg[i], jit.Regs()[i], interp.Reg[i] != jit.Regs()[i] ? "*" : "");
|
|
}
|
|
printf("CPSR: %08x %08x %s\n", interp.Cpsr, jit.Cpsr(), interp.Cpsr != jit.Cpsr() ? "*" : "");
|
|
|
|
#ifdef _MSC_VER
|
|
DebugBreak();
|
|
#endif
|
|
FAIL();
|
|
}
|
|
|
|
if (run_number % 10 == 0) printf("%zu\r", run_number);
|
|
}
|
|
}
|
|
|
|
TEST_CASE("Fuzz Thumb instructions set 1", "[JitX64][Thumb]") {
|
|
const std::array<std::pair<u16, u16>, 16> instructions = {{
|
|
FromBitString16("00000xxxxxxxxxxx"), // LSL <Rd>, <Rm>, #<imm5>
|
|
FromBitString16("00001xxxxxxxxxxx"), // LSR <Rd>, <Rm>, #<imm5>
|
|
FromBitString16("00010xxxxxxxxxxx"), // ASR <Rd>, <Rm>, #<imm5>
|
|
FromBitString16("000110oxxxxxxxxx"), // ADD/SUB_reg
|
|
FromBitString16("000111oxxxxxxxxx"), // ADD/SUB_imm
|
|
FromBitString16("001ooxxxxxxxxxxx"), // ADD/SUB/CMP/MOV_imm
|
|
FromBitString16("010000ooooxxxxxx"), // Data Processing
|
|
FromBitString16("010001000hxxxxxx"), // ADD (high registers)
|
|
FromBitString16("010001010hxxxxxx"), // CMP (high registers)
|
|
FromBitString16("01000101h0xxxxxx"), // CMP (high registers)
|
|
FromBitString16("010001100hxxxxxx"), // MOV (high registers)
|
|
FromBitString16("10110000oxxxxxxx"), // Adjust stack pointer
|
|
FromBitString16("10110010ooxxxxxx"), // SXT/UXT
|
|
FromBitString16("1011101000xxxxxx"), // REV
|
|
FromBitString16("1011101001xxxxxx"), // REV16
|
|
FromBitString16("1011101011xxxxxx"), // REVSH
|
|
//FromBitString16("01001xxxxxxxxxxx"), // LDR Rd, [PC, #]
|
|
//FromBitString16("0101oooxxxxxxxxx"), // LDR/STR Rd, [Rn, Rm]
|
|
//FromBitString16("011xxxxxxxxxxxxx"), // LDR(B)/STR(B) Rd, [Rn, #]
|
|
//FromBitString16("1000xxxxxxxxxxxx"), // LDRH/STRH Rd, [Rn, #offset]
|
|
//FromBitString16("1001xxxxxxxxxxxx"), // LDR/STR Rd, [SP, #]
|
|
//FromBitString16("1011x100xxxxxxxx"), // PUSH/POP (R = 0)
|
|
//FromBitString16("1100xxxxxxxxxxxx"), // STMIA/LDMIA
|
|
//FromBitString16("101101100101x000"), // SETEND
|
|
}};
|
|
|
|
auto instruction_select = [&]() -> u16 {
|
|
size_t inst_index = RandInt<size_t>(0, instructions.size() - 1);
|
|
|
|
if (inst_index == 22) {
|
|
u16 L = RandInt<u16>(0, 1);
|
|
u16 Rn = RandInt<u16>(0, 7);
|
|
u16 reg_list = RandInt<u16>(1, 0xFF);
|
|
if (!L && (reg_list & (1 << Rn))) {
|
|
reg_list &= ~((1 << Rn) - 1);
|
|
if (reg_list == 0) reg_list = 0x80;
|
|
}
|
|
u16 random = (L << 11) | (Rn << 8) | reg_list;
|
|
return instructions[inst_index].first | (random &~instructions[inst_index].second);
|
|
} else if (inst_index == 21) {
|
|
u16 L = RandInt<u16>(0, 1);
|
|
u16 reg_list = RandInt<u16>(1, 0xFF);
|
|
u16 random = (L << 11) | reg_list;
|
|
return instructions[inst_index].first | (random &~instructions[inst_index].second);
|
|
} else {
|
|
u16 random = RandInt<u16>(0, 0xFFFF);
|
|
return instructions[inst_index].first | (random &~instructions[inst_index].second);
|
|
}
|
|
};
|
|
|
|
SECTION("short blocks") {
|
|
FuzzJitThumb(5, 6, 100, instruction_select);
|
|
}
|
|
|
|
SECTION("long blocks") {
|
|
FuzzJitThumb(1024, 1025, 15, instruction_select);
|
|
}
|
|
}
|